ES8102902A1 - AN IMPROVED APPARATUS TO PRODUCE POLYURETHANE FOAM CAPABLE OF SPLITTING SPONTANEOUSLY - Google Patents

AN IMPROVED APPARATUS TO PRODUCE POLYURETHANE FOAM CAPABLE OF SPLITTING SPONTANEOUSLY

Info

Publication number
ES8102902A1
ES8102902A1 ES492926A ES492926A ES8102902A1 ES 8102902 A1 ES8102902 A1 ES 8102902A1 ES 492926 A ES492926 A ES 492926A ES 492926 A ES492926 A ES 492926A ES 8102902 A1 ES8102902 A1 ES 8102902A1
Authority
ES
Spain
Prior art keywords
mold
side walls
polyurethane foam
divergent
spontaneously
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.)
Expired
Application number
ES492926A
Other languages
Spanish (es)
Other versions
ES492926A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reeves Brothers Inc
Original Assignee
Reeves Brothers Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US05/962,166 external-priority patent/US4207279A/en
Application filed by Reeves Brothers Inc filed Critical Reeves Brothers Inc
Publication of ES492926A0 publication Critical patent/ES492926A0/en
Publication of ES8102902A1 publication Critical patent/ES8102902A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/26—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length using several expanding steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface
    • B29C44/462—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface provided with pre-foaming devices

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A process and apparatus for the continuous production of polyurethane foam are directed to the use of a laterally translating mold 13, the first portion of which has divergent side walls, including a "V"- shaped mold (12) having divergent straight vertical side walls (14). A polyurethane reaction mixture is deposited via conduit (11) at or near the mold apex the angle of which is 10 DEG to 120 DEG . Typically, the mixture is permitted to substantially complete its rise after being conveyed past the extremities of the divergent side walls (14) of the first mold portion. The invention contemplates use of a ratio of conveyor velocity to foam product height lower than those of the prior art. Both rectangular and circular cross sectional products can be produced.
ES492926A 1978-11-20 1980-06-30 AN IMPROVED APPARATUS TO PRODUCE POLYURETHANE FOAM CAPABLE OF SPLITTING SPONTANEOUSLY Expired ES8102902A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/962,166 US4207279A (en) 1977-05-03 1978-11-20 Process and apparatus for continuous production of polyurethane foam

Publications (2)

Publication Number Publication Date
ES492926A0 ES492926A0 (en) 1981-02-16
ES8102902A1 true ES8102902A1 (en) 1981-02-16

Family

ID=25505502

Family Applications (2)

Application Number Title Priority Date Filing Date
ES486104A Expired ES486104A1 (en) 1978-11-20 1979-11-19 Continuous casting of polyurethane foam
ES492926A Expired ES8102902A1 (en) 1978-11-20 1980-06-30 AN IMPROVED APPARATUS TO PRODUCE POLYURETHANE FOAM CAPABLE OF SPLITTING SPONTANEOUSLY

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES486104A Expired ES486104A1 (en) 1978-11-20 1979-11-19 Continuous casting of polyurethane foam

Country Status (24)

Country Link
JP (1) JPS5571536A (en)
AR (1) AR221119A1 (en)
AU (1) AU531575B2 (en)
BE (1) BE880113A (en)
BR (1) BR7907493A (en)
CA (1) CA1142314A (en)
CH (1) CH632446A5 (en)
DE (1) DE2946396A1 (en)
DK (1) DK491979A (en)
ES (2) ES486104A1 (en)
FI (1) FI793618A7 (en)
FR (1) FR2441480A1 (en)
GB (1) GB2035887B (en)
GR (1) GR72930B (en)
IE (1) IE48877B1 (en)
IN (1) IN153400B (en)
IT (1) IT1119506B (en)
MX (1) MX151491A (en)
NL (1) NL7908419A (en)
NO (1) NO793602L (en)
NZ (1) NZ192115A (en)
PT (1) PT70450A (en)
SE (1) SE7909283L (en)
ZA (1) ZA796068B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363610A (en) * 1981-01-26 1982-12-14 Miller Foam Enterprises, Inc. Apparatus for continuously molding cylindrical blocks of foamed polymeric material
DK149223C (en) * 1983-08-12 1987-07-06 Hyma Engineering Aps PROCEDURE AND PLANT FOR MANUFACTURE OF POLYURETHAN FOOD OR SIMILAR PRODUCTS
US4572865A (en) * 1983-12-05 1986-02-25 The Celotex Corporation Faced foam insulation board and froth-foaming method for making same
KR101966203B1 (en) * 2017-09-08 2019-04-05 (주)디유티코리아 Manufacturing method of foam mattress with multi-hardness & multi-elasticity by continuous foaming process
EP3482904A1 (en) 2017-11-14 2019-05-15 Covestro Deutschland AG Variable device and method for applying a foamable reaction mixture to a moving cover layer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR78595E (en) * 1960-10-24 1962-08-10 Cie De Prod Chim Casting of thin sheets of cellular resin
US3278659A (en) * 1963-02-26 1966-10-11 Specialty Converters Method and apparatus for casting foam plastic sheets on a curved casting surface
US3560599A (en) * 1968-08-05 1971-02-02 Tenneco Chem Method of regulating the upper surface contour of polyurethane foam
DE2135672A1 (en) * 1971-07-16 1973-02-01 Bayer Ag Foam plastics block - esp polyurethane - continuously produced with rectangular section on moving belt
GB1564604A (en) * 1975-11-07 1980-04-10 Unifoam Ag Manufacture of polymeric foam
DE2231084A1 (en) * 1972-06-24 1974-01-03 Hennecke Gmbh Maschf DEVICE FOR THE CONTINUOUS PRODUCTION OF FOAM BLOCKS
ES215157Y (en) * 1975-09-16 1976-12-01 Policastilla, S. A. PERFECTED DEVICE FOR THE CONTINUOUS MANUFACTURE OF BLOCKS OF EXPANDED CELLULAR MATERIAL WITH CIRCULAR SECTION.

Also Published As

Publication number Publication date
AR221119A1 (en) 1980-12-30
ZA796068B (en) 1980-10-29
BR7907493A (en) 1980-07-08
AU5298179A (en) 1980-05-29
DK491979A (en) 1980-05-21
NZ192115A (en) 1981-05-29
IT7969240A0 (en) 1979-11-19
CH632446A5 (en) 1982-10-15
FR2441480B1 (en) 1984-03-16
JPS5571536A (en) 1980-05-29
GB2035887A (en) 1980-06-25
PT70450A (en) 1979-12-01
GR72930B (en) 1984-01-12
NL7908419A (en) 1980-05-22
ES492926A0 (en) 1981-02-16
AU531575B2 (en) 1983-09-01
ES486104A1 (en) 1980-10-01
IE792176L (en) 1980-05-20
IE48877B1 (en) 1985-06-12
SE7909283L (en) 1980-05-21
IN153400B (en) 1984-07-14
BE880113A (en) 1980-05-19
FR2441480A1 (en) 1980-06-13
NO793602L (en) 1980-05-21
IT1119506B (en) 1986-03-10
DE2946396A1 (en) 1980-05-29
MX151491A (en) 1984-12-04
GB2035887B (en) 1982-11-03
FI793618A7 (en) 1981-01-01
CA1142314A (en) 1983-03-08

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