CA2014607A1 - Curable plastic sheet material - Google Patents
Curable plastic sheet materialInfo
- Publication number
- CA2014607A1 CA2014607A1 CA 2014607 CA2014607A CA2014607A1 CA 2014607 A1 CA2014607 A1 CA 2014607A1 CA 2014607 CA2014607 CA 2014607 CA 2014607 A CA2014607 A CA 2014607A CA 2014607 A1 CA2014607 A1 CA 2014607A1
- Authority
- CA
- Canada
- Prior art keywords
- sheet material
- curable
- plastic sheet
- polymer composition
- curable plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000000463 material Substances 0.000 title claims abstract description 76
- 239000002985 plastic film Substances 0.000 title claims abstract description 30
- 229920000642 polymer Polymers 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 230000005855 radiation Effects 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 239000004645 polyester resin Substances 0.000 claims description 9
- 229920001225 polyester resin Polymers 0.000 claims description 9
- 239000012779 reinforcing material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims 1
- 239000002562 thickening agent Substances 0.000 claims 1
- 239000004677 Nylon Substances 0.000 abstract description 9
- 229920001778 nylon Polymers 0.000 abstract description 9
- 239000011152 fibreglass Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 102100024133 Coiled-coil domain-containing protein 50 Human genes 0.000 description 2
- 101000910772 Homo sapiens Coiled-coil domain-containing protein 50 Proteins 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 101100379067 Caenorhabditis elegans anc-1 gene Proteins 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Abstract
ABSTRACT
The invention relates to a curable plastic sheet material for use in roofing which is curable in UV radiation such as in daylight, comprising a reinforcing layer in the form of chopped "E" glass fibre 10, and a support layer in the form of glass fibre tissue 11 on the upper (as viewed) surface thereof, impregnated respectively with a first and second quantity of a UV curable polymer composition 12 to 14 and all sandwiched between a first and second outer protective sheet of suitable material such as nylon or melinex (trade mark) 15 and 16.
The invention relates to a curable plastic sheet material for use in roofing which is curable in UV radiation such as in daylight, comprising a reinforcing layer in the form of chopped "E" glass fibre 10, and a support layer in the form of glass fibre tissue 11 on the upper (as viewed) surface thereof, impregnated respectively with a first and second quantity of a UV curable polymer composition 12 to 14 and all sandwiched between a first and second outer protective sheet of suitable material such as nylon or melinex (trade mark) 15 and 16.
Description
2~6~7 CUR~I,E PLASTIC S~llET t~TEI~IAL
This invention relates to a curdble plastic sheet material particularly, but not exclusively, for use as a roofing material.
A problem associated with flat roofed huildings is providing 05 a satisfactory weatherproof and durab1e roofing. Due to its strength, glass fibre has proved a popular roofing material. Tnis often used as follows: a catalysed resin is first spread over the roof with a roller, glass fibre matting is then unrolled in strips onto the tacky resin, and lU the remainder of the catalysed resin is theteafter spread ,~ over and worked into the mat. Further details are available from Glassguard Products Limited of Sandycroft, Deeside.
, ...
The final roofing, howevér, often leaks and is inconsistent owiny to, for example, a lack of skill of the roofer, or ~-!
poor weather conditions when 1aying the roof.
It is an object of the present invention to provide a material, particularly a roofing material, which can be ~ .
easily laid.
:;
.
., , ~ . ,, ,- . , : ~ .
,, .
According to the first aspect of the present invention, there is provided a curable plastic sheet material comprising at least one layer of iibrous reinforcing material and an intersticial support material, both of which 05 materials are impregnated with a curable polymer composition, the interstices of the support material being ; sufficiently small that on curing, the laminate is substantially water impermeable. r When using this sheet material for roofs, the sheet is merely laid on the roof, the plastic nature of the sheet permitting it to be moulded to the required shape. The sheet is then cured in situ.
Support refers to a structural support given to the polymer composition; and preferably the support material is on the surface of the reinforcing material.
. .
~ Prefeeably also, the support material is a fibrous tissue, ; and more preferably the fibrous support material is fibre glass tissue.
Preferably also, the impregnated support material is about 20 to 40gm~2, and more preferably the impregnated support material is about 30gm~2.
' ~ ,` ' : .
2 a ~
The curable polymer composition must be capable of wetting the fibres of the reinforcing materia~ and support material and yet must form a coherent plastic sheet prior to curing.
This is achieved by the use of stiffening agents which over 05 a short period will convert the po~ymer from a viscous liquid into a plastic solid.
`.~
The curable polymer is preferably a cura-ble resin composition, for example a polyester or epoxy resin.
.~ According to a preferred embodirnent the polymer composition includes a radiation sensitive curing cata]yst and in particular a catalyst sensitive to UV radiation. Where a UV
radiation sensitive catalyst is used all additives present ;` in signi~icant quantities and the fibrous reinforcing and support materials must be capable of transmitting UV
radiation.
, ., .~, Preferably also the fibrous reinforcing and support ` materials are sandwiched between two protective sheets.
According to a second aspect of ~he invention, there is provided a process for the production of a curable plastic 2~ sheet material, comprising forming at least one layer of fibrous reinforcing material and on at least one surface thereof an intersticial support material both of which are ,.,.. .,,, , , . ':
, . . . . .
~Q~fi~7 impregnated with a curable polymer composition, the interstices of the support material being sufficiently small that on curing of said po~ymer composition, the sheet material is substantially water impermeable.
05 Preferab1y a first and second outer protective sheet is further used, the curable polymer composition being tacky when applied to the respective outer protective sheets.
Preferably also the sheet material is passed between a first and second set of rollers to exert a pressure and help impregnate the fibrous reinforcing and support material.
Preferably also, the support materia1 is first sandwiched between the first and second c~uantities of curable polymer composition and then passed between the rollers.
It will, of course, by appreciated that the curable polymer composition, the support material, the fibrous reinforcing material and the outer protective sheets as defined in the first aspect of the invention are preferably used in the second aspect of the invention.
According to a third aspect of the invention there is provided the use of a curable plastic sheet material as 2 ~ 7 defined in the first aspect of the invention or produced in accordance with the second as~)ect of the invention for construction and particularly for roofing.
Preferably radiation lamps (preferably ~lv lamps) are used to 05 initially set the curable polymer composition so that it can withstand the rain.
.~.
A curable plastic sheet material embodying the invention, and a method of making the curable plastic sheet material are hereinafter described, by way of example, with reference to the accompanying drawings.
. ~
Figure 1 is a cross-section view of part of a curable plastic sheet material in accordance wit~, the invention;
Figure 2 is a schematic side elevational view of apparatus for carrying out a process for making the curable plastic sheet material of Figure 1.
Referring to the drawings, Figure 1 shows a curable plastic sheet material comprising a reinforcing layer in the form of chopped ~E~ glass fibre 10, and a support layer in the form of glass fibre tissue 11 on the upper (as viewed) surface thereof, impregnated respectively with a first and second quantity of a UV curable polymer composition 12 to 14 and 7 --`
~ .
all sandwiched bet~een a first and second outer protective sheet of suitable material sucl) as nylon or melinex (trade mark) 15 anc1 16.
:
-~ The polymer composition 12 to 14 comprir,es 32~ by weight an 05 isophthalic fiee retardant polyester resin, commercially ~ available as ~PALAP~EG Pl52" (registered trade mark) from ; BASF; 64% by weight Alumina Trihyde, translucent Eiller and fire retardant; 2.5% by weight Styrene; 1.0% by weight Benzoin butyl ethet, UV radiation sensitive curing agent commercially available as ~TRIGO~AL l5" (registered trade mark) from Akzo Chelnie; 0.25% by weight magnesium oxide thiclcening agent; 0.15% by weight translucent colour paste and also wetting and air release agents.
3kg of this polymer is applied to snog of powder bonded chopped "E" glass fibre lO, 25mm long, per square metre of the sheet material, 20gm~2 glass fil-re tissue ll being applied to tlle resin impregnate~ reinforcing layer lO.
.' .
Apparatus and process for malcing curable plastic sheet material, is shown with reference to Figure 2. In the process the first nylon sheet 15 moves in the direction of the arrows (as shown) between rollers such as a first and second cardboard tube 17 and 18. The first quantity of UV
curable polyester resin 12 is mixed and extruded with the .. . .. . .
-:
2 ~ 7 inert ~illers 14 from container 19 and applied to the upper ; surface of the first nylon .sheet 15 to provide a tacky polymer composition.
The reinforcing "E~ glass fibres 10 are then sprayed onto 05 the tacky polymer composition 12 and 14 and the prepared sheet 10, 12, 14 and 15 passed to a first and second set of rollers 20 and 21.
Above the first and second set of rollers 20 and 21, the second nylon sheet 16 unwinds and has the second quantity of UV curable polyester resin ~3 and the inert fillers 14 extruded onto its uppermost surface. The second sheet 16 with the resin and inert fillers is then pressed by the rollers 20, 21 against the second prepared nylon sheet 13, ; 14 and 16 and the fibre-glass tissue 11 which forms in use the upper surface of the sheet material.
By passing the prepared second nylon sheet 13, 14 and 16 round two guide rollers, it is doubled back on itself, so inverting the surface carrying the tacky poly~er composition 13 and 14. The glass fibre surface tissue 11 then joins with this tacky surface and so passes between the two sets of rollers 20 and 21. Under the pressure of the rollers the first and second quantities of polyester resin impregnate and wet the respective fibre glass layers 10 and 11. The 2 ~
.
resin is then permitted to thicken providing a coherent plastic sheet.
With this construction, the curable plastic sheet material has the reinforcing strength of the "E~ glass fibres 10, but 05 it is also weather proofed through the impregnated surfaces fibre-glass tissue 11, 13 and 14.
The curable plastic sheet material is applied to a roof as follows:-(1) The sheet material is first ]aid in strips onto a clean, sound dry roof;
(2) ~lith the fibre-glass surace tissue 11 uppermost, the strips are lapped 2-3 incl-les (5.08-7.62 cm), and the intervening sheets of nylon pulled clear.
The exposed, lapped resin is then treated with resin and the laps forced together with a metal ; roller to ensure good jointing;
This invention relates to a curdble plastic sheet material particularly, but not exclusively, for use as a roofing material.
A problem associated with flat roofed huildings is providing 05 a satisfactory weatherproof and durab1e roofing. Due to its strength, glass fibre has proved a popular roofing material. Tnis often used as follows: a catalysed resin is first spread over the roof with a roller, glass fibre matting is then unrolled in strips onto the tacky resin, and lU the remainder of the catalysed resin is theteafter spread ,~ over and worked into the mat. Further details are available from Glassguard Products Limited of Sandycroft, Deeside.
, ...
The final roofing, howevér, often leaks and is inconsistent owiny to, for example, a lack of skill of the roofer, or ~-!
poor weather conditions when 1aying the roof.
It is an object of the present invention to provide a material, particularly a roofing material, which can be ~ .
easily laid.
:;
.
., , ~ . ,, ,- . , : ~ .
,, .
According to the first aspect of the present invention, there is provided a curable plastic sheet material comprising at least one layer of iibrous reinforcing material and an intersticial support material, both of which 05 materials are impregnated with a curable polymer composition, the interstices of the support material being ; sufficiently small that on curing, the laminate is substantially water impermeable. r When using this sheet material for roofs, the sheet is merely laid on the roof, the plastic nature of the sheet permitting it to be moulded to the required shape. The sheet is then cured in situ.
Support refers to a structural support given to the polymer composition; and preferably the support material is on the surface of the reinforcing material.
. .
~ Prefeeably also, the support material is a fibrous tissue, ; and more preferably the fibrous support material is fibre glass tissue.
Preferably also, the impregnated support material is about 20 to 40gm~2, and more preferably the impregnated support material is about 30gm~2.
' ~ ,` ' : .
2 a ~
The curable polymer composition must be capable of wetting the fibres of the reinforcing materia~ and support material and yet must form a coherent plastic sheet prior to curing.
This is achieved by the use of stiffening agents which over 05 a short period will convert the po~ymer from a viscous liquid into a plastic solid.
`.~
The curable polymer is preferably a cura-ble resin composition, for example a polyester or epoxy resin.
.~ According to a preferred embodirnent the polymer composition includes a radiation sensitive curing cata]yst and in particular a catalyst sensitive to UV radiation. Where a UV
radiation sensitive catalyst is used all additives present ;` in signi~icant quantities and the fibrous reinforcing and support materials must be capable of transmitting UV
radiation.
, ., .~, Preferably also the fibrous reinforcing and support ` materials are sandwiched between two protective sheets.
According to a second aspect of ~he invention, there is provided a process for the production of a curable plastic 2~ sheet material, comprising forming at least one layer of fibrous reinforcing material and on at least one surface thereof an intersticial support material both of which are ,.,.. .,,, , , . ':
, . . . . .
~Q~fi~7 impregnated with a curable polymer composition, the interstices of the support material being sufficiently small that on curing of said po~ymer composition, the sheet material is substantially water impermeable.
05 Preferab1y a first and second outer protective sheet is further used, the curable polymer composition being tacky when applied to the respective outer protective sheets.
Preferably also the sheet material is passed between a first and second set of rollers to exert a pressure and help impregnate the fibrous reinforcing and support material.
Preferably also, the support materia1 is first sandwiched between the first and second c~uantities of curable polymer composition and then passed between the rollers.
It will, of course, by appreciated that the curable polymer composition, the support material, the fibrous reinforcing material and the outer protective sheets as defined in the first aspect of the invention are preferably used in the second aspect of the invention.
According to a third aspect of the invention there is provided the use of a curable plastic sheet material as 2 ~ 7 defined in the first aspect of the invention or produced in accordance with the second as~)ect of the invention for construction and particularly for roofing.
Preferably radiation lamps (preferably ~lv lamps) are used to 05 initially set the curable polymer composition so that it can withstand the rain.
.~.
A curable plastic sheet material embodying the invention, and a method of making the curable plastic sheet material are hereinafter described, by way of example, with reference to the accompanying drawings.
. ~
Figure 1 is a cross-section view of part of a curable plastic sheet material in accordance wit~, the invention;
Figure 2 is a schematic side elevational view of apparatus for carrying out a process for making the curable plastic sheet material of Figure 1.
Referring to the drawings, Figure 1 shows a curable plastic sheet material comprising a reinforcing layer in the form of chopped ~E~ glass fibre 10, and a support layer in the form of glass fibre tissue 11 on the upper (as viewed) surface thereof, impregnated respectively with a first and second quantity of a UV curable polymer composition 12 to 14 and 7 --`
~ .
all sandwiched bet~een a first and second outer protective sheet of suitable material sucl) as nylon or melinex (trade mark) 15 anc1 16.
:
-~ The polymer composition 12 to 14 comprir,es 32~ by weight an 05 isophthalic fiee retardant polyester resin, commercially ~ available as ~PALAP~EG Pl52" (registered trade mark) from ; BASF; 64% by weight Alumina Trihyde, translucent Eiller and fire retardant; 2.5% by weight Styrene; 1.0% by weight Benzoin butyl ethet, UV radiation sensitive curing agent commercially available as ~TRIGO~AL l5" (registered trade mark) from Akzo Chelnie; 0.25% by weight magnesium oxide thiclcening agent; 0.15% by weight translucent colour paste and also wetting and air release agents.
3kg of this polymer is applied to snog of powder bonded chopped "E" glass fibre lO, 25mm long, per square metre of the sheet material, 20gm~2 glass fil-re tissue ll being applied to tlle resin impregnate~ reinforcing layer lO.
.' .
Apparatus and process for malcing curable plastic sheet material, is shown with reference to Figure 2. In the process the first nylon sheet 15 moves in the direction of the arrows (as shown) between rollers such as a first and second cardboard tube 17 and 18. The first quantity of UV
curable polyester resin 12 is mixed and extruded with the .. . .. . .
-:
2 ~ 7 inert ~illers 14 from container 19 and applied to the upper ; surface of the first nylon .sheet 15 to provide a tacky polymer composition.
The reinforcing "E~ glass fibres 10 are then sprayed onto 05 the tacky polymer composition 12 and 14 and the prepared sheet 10, 12, 14 and 15 passed to a first and second set of rollers 20 and 21.
Above the first and second set of rollers 20 and 21, the second nylon sheet 16 unwinds and has the second quantity of UV curable polyester resin ~3 and the inert fillers 14 extruded onto its uppermost surface. The second sheet 16 with the resin and inert fillers is then pressed by the rollers 20, 21 against the second prepared nylon sheet 13, ; 14 and 16 and the fibre-glass tissue 11 which forms in use the upper surface of the sheet material.
By passing the prepared second nylon sheet 13, 14 and 16 round two guide rollers, it is doubled back on itself, so inverting the surface carrying the tacky poly~er composition 13 and 14. The glass fibre surface tissue 11 then joins with this tacky surface and so passes between the two sets of rollers 20 and 21. Under the pressure of the rollers the first and second quantities of polyester resin impregnate and wet the respective fibre glass layers 10 and 11. The 2 ~
.
resin is then permitted to thicken providing a coherent plastic sheet.
With this construction, the curable plastic sheet material has the reinforcing strength of the "E~ glass fibres 10, but 05 it is also weather proofed through the impregnated surfaces fibre-glass tissue 11, 13 and 14.
The curable plastic sheet material is applied to a roof as follows:-(1) The sheet material is first ]aid in strips onto a clean, sound dry roof;
(2) ~lith the fibre-glass surace tissue 11 uppermost, the strips are lapped 2-3 incl-les (5.08-7.62 cm), and the intervening sheets of nylon pulled clear.
The exposed, lapped resin is then treated with resin and the laps forced together with a metal ; roller to ensure good jointing;
(3) Finally the second (top) nylon sheet is stripped off and a thin coating of waterproofing compound applied to protect the sheet material until it has cured (in at least 24 hours). Preferably, however, the UV lamps are used to cure the :
2 Q ~
g polyester resin suficiently to withstand the rain. l'he waterproof coating will, therefore, not be required, and the resin will still cure further under the natural sunlight;
,~
05 ~4) The sheet material is fixed by nails round the edges of the roof prior to CUl ing.
The invention has a number of advantacles over hand applied roofings such as described hereinbefore.
(1) It is quicker to apply and since it requires much less application skill, the final roofing is better (2) It is not so dependent on the weather and can be laid in most conditions;
~` (3) Fewer hand tools are required;
~; ~
15 (4) It can be walked on at any time;
(5) It can withstand most weather conditions within a few minutes.
The surface glass fibre tissue acts as a support matrix for .. . . .. .
2 ~ 7 the second quantity of polyester resin, and so any support material can be used which has sufficiently small interstices so that on impregnation with a curable polymer resin, a substantially water impermeable layer is formed.
05 Although polyester resin is most preferred, other suitable resins are, for example, epoxies and polyurethanes, or pvc.
Furthermore the resin could be curable in a number of ways and the preferred UV curable method provides a sufficient shelf life of the laminate. The first and second quantity can be different. It should be noted for example that the ratio of resin to reinforcing fibre-glass could be feom about 4:1 to 1:4.
The curable plastic sheet material can also be used for purposes other than roofing, such as for lining reservoirs or for the construction of buildinqs, DIY vehicle repairs, casualty limb support via vacuum moulding.
.: , . , ~,, :. ., :
: : . ~ ~. . ., ~ . -
2 Q ~
g polyester resin suficiently to withstand the rain. l'he waterproof coating will, therefore, not be required, and the resin will still cure further under the natural sunlight;
,~
05 ~4) The sheet material is fixed by nails round the edges of the roof prior to CUl ing.
The invention has a number of advantacles over hand applied roofings such as described hereinbefore.
(1) It is quicker to apply and since it requires much less application skill, the final roofing is better (2) It is not so dependent on the weather and can be laid in most conditions;
~` (3) Fewer hand tools are required;
~; ~
15 (4) It can be walked on at any time;
(5) It can withstand most weather conditions within a few minutes.
The surface glass fibre tissue acts as a support matrix for .. . . .. .
2 ~ 7 the second quantity of polyester resin, and so any support material can be used which has sufficiently small interstices so that on impregnation with a curable polymer resin, a substantially water impermeable layer is formed.
05 Although polyester resin is most preferred, other suitable resins are, for example, epoxies and polyurethanes, or pvc.
Furthermore the resin could be curable in a number of ways and the preferred UV curable method provides a sufficient shelf life of the laminate. The first and second quantity can be different. It should be noted for example that the ratio of resin to reinforcing fibre-glass could be feom about 4:1 to 1:4.
The curable plastic sheet material can also be used for purposes other than roofing, such as for lining reservoirs or for the construction of buildinqs, DIY vehicle repairs, casualty limb support via vacuum moulding.
.: , . , ~,, :. ., :
: : . ~ ~. . ., ~ . -
Claims (19)
1. A curable plastic sheet material comprising at least one layer of fibrous reinforcing material and an intersticial support material, both of which materials are impregnated with a curable polymer composition, the interstices of the surface support material being sufficiently small that on curing, the laminate is substantially water impermeable.
2. A curable plastic sheet material according to Claim 1, in which the support material is on a surface of the reinforcing material.
3. A curable plastic sheet material according to Claim 1, in which the support material is a fibrous tissue.
4. A curable plastic sheet material according to Claim 3, in which the fibrous support material comprises a glass fibre tissue.
5. A curable plastic sheet material according to claim 1, in which the impregnated support material is about 20 to 40gm-2.
6. A curable plastic sheet material according to Claim 5, in which the impregnated support material is about 30gm-2.
7. A curable plastic sheet material according to claim 1, in which the curable polymer composition includes a thickening agent.
8. A curable plastic sheet material according to claim 1, in which the polymer composition includes a radiation sensitive catalyst for curing.
9. A curable plastic sheet material according to Claim 8, in which the catalyst is responsive to UV
radiation.
radiation.
10. A curable plastic sheet material according to Claim 8 in which the polymer and all significant additives transmit radiation.
11. A curable plastic sheet material according to claim 1 in which the polymer is a polyester resin.
12. A curable plastic sheet material according to claim 1, in which the impregnated reinforcing and support materials are sandwiched between two protective sheets.
13. A process for the production of a curable plastic sheet material, comprising forming at least one layer of fibrous reinforcing material, and on at least one surface thereof an intersticial support material both of which materials are impregnated with a curable polymer composition, the interstices of the support material being sufficiently small that on curing of said polymer composition, the sheet material is substantially water impermeable.
14. A process according to Claim 13, in which a first and second outer protective sheet is further used, the curable polymer composition being applied to these.
15. A process according to Claim 14, in which the curable polymer composition is tacky when applied to the respective outer protective sheets.
16. A process according to claim 13, in which the sheet material is passed between a first and second set of rollers to exert a pressure and help impregnate the fibrous reinforcing and support material, prior to thickening of the resin.
17. A process according to Claim 16, in which the support material is first sandwiched between the first and second quantities of curable polymer composition and then passed between the rollers.
18. A process according to Claim 13, in which the curable polymer composition, the support material, the fibrous reinforcing material and the outer protective sheets are as defined in Claim 1.
19. Use of a curable plastic sheet material as claimed in Claim 1, or produced in accordance with claim 13, for construction and particularly for roofing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2014607 CA2014607A1 (en) | 1990-04-12 | 1990-04-12 | Curable plastic sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2014607 CA2014607A1 (en) | 1990-04-12 | 1990-04-12 | Curable plastic sheet material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2014607A1 true CA2014607A1 (en) | 1991-10-12 |
Family
ID=4144753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2014607 Abandoned CA2014607A1 (en) | 1990-04-12 | 1990-04-12 | Curable plastic sheet material |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2014607A1 (en) |
-
1990
- 1990-04-12 CA CA 2014607 patent/CA2014607A1/en not_active Abandoned
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4794027A (en) | Process for coating a base material with an elastomer and product produced by such process | |
| CA2268855A1 (en) | Recycled roofing material and method of manufacturing the same | |
| EP0442896B1 (en) | Laminate and process for producing same | |
| CA2014607A1 (en) | Curable plastic sheet material | |
| RU2021303C1 (en) | Sheet material and its production process | |
| JP3467134B2 (en) | Undercoating material for waterproofing construction of building coating and composite waterproofing method for building using the undercoating material | |
| IL94102A (en) | Curable plastic sheet material | |
| IE901278A1 (en) | Curable plastic sheet material | |
| US20250230662A1 (en) | A precursor flashing composite and methods of using the same | |
| KR101923920B1 (en) | Nonslip waterproof sheet for roof | |
| JPS61176754A (en) | Composite water-proof construction method | |
| GB2080196A (en) | Self-adhesive roofing laminate having self-edge sealing properties | |
| WO2024034599A1 (en) | Roof repair method | |
| JP3868059B2 (en) | Waterproofing method using photo-curable prepreg sheet | |
| JP3027443B2 (en) | Building coverings | |
| JPH0230841A (en) | Waterproofing | |
| JPH01214654A (en) | Laminated waterproof sheet | |
| CN109025075A (en) | Ripple asphalt waterproofing plate | |
| JPH0228048Y2 (en) | ||
| JP3868060B2 (en) | Waterproof construction method using photo-curable prepreg sheet | |
| KR20210020257A (en) | complex sheet for waterproof work | |
| JPS6345464Y2 (en) | ||
| PT93796B (en) | PRODUCTION PROCESS OF A CURVEL PLASTIC MATERIAL IN SHEET CONTAINING A POLYMERIC COMPOSITION | |
| JPH11152860A (en) | Waterproof method and waterproof structure | |
| EP0167246A1 (en) | Waterproof sheet coated with water absorptive tacky material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |