CN1061299C - Single side metal-clad laminate - Google Patents
Single side metal-clad laminate Download PDFInfo
- Publication number
- CN1061299C CN1061299C CN95116059A CN95116059A CN1061299C CN 1061299 C CN1061299 C CN 1061299C CN 95116059 A CN95116059 A CN 95116059A CN 95116059 A CN95116059 A CN 95116059A CN 1061299 C CN1061299 C CN 1061299C
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- CN
- China
- Prior art keywords
- base material
- paper base
- tensile strength
- paper
- clad laminate
- 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 - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 122
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 238000007654 immersion Methods 0.000 claims description 2
- 238000011282 treatment Methods 0.000 claims description 2
- 239000000123 paper Substances 0.000 abstract description 83
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 24
- 239000011889 copper foil Substances 0.000 abstract description 23
- 239000005011 phenolic resin Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 229920001568 phenolic resin Polymers 0.000 abstract description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract description 5
- 230000008602 contraction Effects 0.000 abstract description 3
- 239000003822 epoxy resin Substances 0.000 abstract description 3
- 229920000647 polyepoxide Polymers 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005530 etching Methods 0.000 abstract description 2
- 239000011888 foil Substances 0.000 abstract 7
- 239000002655 kraft paper Substances 0.000 abstract 2
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 239000004922 lacquer Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000002383 tung oil Substances 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- -1 melmac Polymers 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920002866 paraformaldehyde Polymers 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MJYQFWSXKFLTAY-OVEQLNGDSA-N (2r,3r)-2,3-bis[(4-hydroxy-3-methoxyphenyl)methyl]butane-1,4-diol;(2r,3r,4s,5s,6r)-6-(hydroxymethyl)oxane-2,3,4,5-tetrol Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O.C1=C(O)C(OC)=CC(C[C@@H](CO)[C@H](CO)CC=2C=C(OC)C(O)=CC=2)=C1 MJYQFWSXKFLTAY-OVEQLNGDSA-N 0.000 description 1
- CRBJBYGJVIBWIY-UHFFFAOYSA-N 2-isopropylphenol Chemical compound CC(C)C1=CC=CC=C1O CRBJBYGJVIBWIY-UHFFFAOYSA-N 0.000 description 1
- WUQYBSRMWWRFQH-UHFFFAOYSA-N 2-prop-1-en-2-ylphenol Chemical compound CC(=C)C1=CC=CC=C1O WUQYBSRMWWRFQH-UHFFFAOYSA-N 0.000 description 1
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 229940106691 bisphenol a Drugs 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 235000004426 flaxseed Nutrition 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229940100630 metacresol Drugs 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
To provide a single-sided metallic foil-clad laminate of small warpage by a method wherein tensile strength of paper base material on a metallic foil side for respective length and bredth of the paper base material is made a specific number of times the tensile strength of the paper base material on an opposite side to the metallic foil. For one side metallic foil-clad laminate wherein paper is used as base material and a metallic foil is arranged only on one side, tensile strength of paper base material on a metallic foil side for respective length and width of the paper base material is made 0.8-0.95 times the tensile strength of the paper base material on an opposite side to the metallic foil. When the tensile strength of the paper base material on the metallic foil side is smaller than 0.8 times the tensile strength of the paper base material on the opposite side to the metallic foil, minus warpage wherein a copper foil surface becomes depressed in an etching process or a printing process increases to cause a line trouble. Further, when it is larger than 0.95, there is no effect. For the paper base material to be used, kraft paper of excellent thermal expansion and contraction coefficient being linter paper, kraft paper, etc., is preferable. For thermosetting resin with which the paper base material is impregnated, phenolic resin, epoxy resin or its modified resin can be used, and those can independently or jointly used also.
Description
The present invention relates to as the hard printed substrate be the single side metal-clad laminate of base material with paper.
The paper base material metal-clad laminate system that civil electric appliance extensively adopts is a base material with paper, and sticks metal forming on the surface that with the thermosetting resin is the laminate of binding agent.
Thermosetting resin can be used phenolic resins, mylar, epoxy resin, and is that the laminate of binding agent is because of the cheap main body that becomes with phenolic resins.Paper mainly uses brown paper.Metal forming is mainly used the good conductor of electricity Copper Foil.
The necessary amount of deflection of metal-clad laminate (the metal forming Copper Foil is many, therefore only enumerates copper-clad laminate below) is little, and this is to adorn and make the installation back part for the reality that can use automatic machinery correctly to carry out parts not peel off, and does not fall.
For amount of deflection is reduced, the known ratio that uses vertical and horizontal tensile strength is 1.10～1.30 paper base material (with reference to patent disclosure communique 83-128844 number), and can be in two outsides and the centre of laminate, use tensile strength in length and breadth to the different paper base material of ratio (with reference to patent disclosure communique 85-40244 number and 85-40243 number).
But only single face has the single side copper-clad laminate of Copper Foil, has the residual copper rate height in circuit processing back, and copper-clad surface becomes protruding after punching punching more for a long time simultaneously, and amount of deflection (below be called sun curved) becomes problem such as big.
The present invention aims to provide the little single side metal-clad laminate of amount of deflection.
The invention provides single side metal-clad laminate, it is characterized in that: the preformed board peek that paper base material heat of immersion thermosetting resin is formed is opened and is overlapped, heat pressurized treatments, the single face of gained laminate applies metal forming and forms single side metal-clad laminate, each paper base material is cut the test film of 15mm * 220mm size respectively from vertical and horizontal, each test film is pressed chuck spacing 180mm, the condition that draw speed 50mm/ divides is carried out tension test, the value of the pulling force when rupturing with test film is as the tensile strength (unit: in the time of N/15mm) of each paper base material, on the portraitlandscape of paper base material, the tensile strength that is connected the paper base material of side with metal forming is respectively 0.8～0.95 times with the tensile strength of the outermost paper base material of metal forming opposition side.
The tensile strength that is connected the side paper base material with metal forming is less than with 0.8 times of the tensile strength of the outermost paper base material of metal forming opposition side the time, and copper-clad surface is that the moon of spill is curved to become big in etching work procedure, printing process etc., becomes the reason of streamline fault.And greater than 0.95 o'clock, the present invention did not have effect, and it is insufficient that copper-clad surface is the curved inhibition of the sun of convex.
If the paper base material lint paper that uses, brown paper, mixed copy paper etc. are paper commonly used on the paper base material laminate is made, there is no particular restriction, and be good with the good brown paper of thermal expansion shrinkage character.The paper of paper base material is heavy usually with 110～150g/m
2For good:
And, in the present invention, with the outermost paper base material of metal forming opposition side should be the paper base material of 0.70～0.80 times of endwise tensile strength with endwise tensile strength 40～60N/15mm, transverse tensile strength.
The paper base material that tensile strength is different can be made with common papermaking operation by the combination and the beating time that change the paper raw material fiber.Use same fiber, can be made into the big paper of tensile strength by prolonging beating time.In the present invention, paper base material is cut from vertical, horizontal respectively by 15 * 220mm size, carry out tension test with chuck spacing (span) 180mm, hot strength 50mm/ branch, the value when paper base material is ruptured is converted into N/15mm, tries to achieve the vertical and horizontal tensile strength of paper base material.
The thermosetting resin of impregnated paper base material is a resin commonly used on the paper base material laminate is made, and there is no particular restriction, for example available phenolic resins, epoxy resin, melmac, unsaturated polyester resin, or its modified resin, and independent or merging is used and all can.Also can in above-mentioned resin, add fire retardant or make it to react and make the anti-flammability laminate.
During paper base material direct impregnation thermosetting resin lacquer, the compatibility of paper base material and thermosetting resin is bad, therefore, usually be coated with as face with before the thermosetting resin of resin at dipping, preferably make paper base material dipping as primary coat with the water soluble phenol resin of resin, water-soluble melamine resin, with the melmac resin modified phenol resin etc., and drying.Good especially as the face used thermosetting resin of resinizing with dry oil modified phenolic resin, because can obtain the good laminate of punching processing.Make phenolic resin modified drying oil can use tung oil, dehydrated castor oil, flaxseed wet goods, phenols can use phenol, metacresol, paracresol, orthoresol, isopropyl-phenol, p-t-butyl phenol, to isopropenyl phenol oligomer, nonyl phenol, bisphenol-A etc.Metal forming in order to improve the bonding strength with substrate, can be used the Copper Foil that is adhering to adhesive.
The pickup of thermosetting resin on the paper base material, with respect to all resins adhesive capacity of preforming material weight, to be advisable with 40～60 weight % usually, above-mentioned primary coat with the adhesion of resin is, in with respect to paper base material and primary coat primary coat amount of resin, be advisable with 10～30 weight % with the total amount of resin.
Single side metal-clad laminate of the present invention can flood above-mentioned thermosetting resin with above-mentioned paper base material by well-established law, after the heating resin is a preforming material number overlapping of semi-solid preparation shape, and at its Copper Foil that simultaneously overlaps, makes through the method for heating pressurization again.
The condition of heating pressurization, usually, heating-up temperature is 150～200 ℃, is preferably 160～190 ℃; Pressure 5～20MPa is preferably 9～15MPa; Time is 30～180 minutes, is preferably 60～120 minutes.
Single side metal-clad laminate of the present invention, on the vertical and horizontal of paper base material, be positioned at the paper base material that is connected side with metal forming and with the tensile strength of the paper base material in the centre position of the outermost paper base material of metal forming opposition side, preferably be equal to or greater than the tensile strength that is connected the paper base material of side with metal forming respectively, and be equal to or less than the outermost paper base material with the metal forming opposition side respectively.
For example, 0.8～0.95 times the paper base material of tensile strength of paper base material that with tensile strength is another preforming material (preforming material (II)) is as the paper base material of a kind of preforming material (preforming material (I)), prepare two kinds of molding mass (I) and (II), on the preforming material (II) of or several overlappings, add one or several the preforming materials (I) that overlap, the metal forming that overlaps in the above again through the heating pressurization, can be made into single side metal-clad laminate of the present invention.And for example, also available tensile strength is bigger and prepare preforming material (III) than the little paper base material of tensile strength of the paper base material of preforming material (II) than the tensile strength of the paper base material of preforming material (I), will be configured between preforming material (I) and the preforming material (II) than one or several of preforming material (III).
With one of curved reason of sun after the printed substrate punching of single side copper-clad laminate is that laminate partly is that thermosetting resin and paper base material part are shunk big through the thermal expansion of heating, cooled hot contraction ratio Copper Foil.
According to the tensile strength of the used paper base material of preforming material of the Copper Foil of single side copper-clad laminate 0.8～0.98 times of paper base material tensile strength of Copper Foil opposition side preforming material, so diminish with the thermal contraction of copper-clad surface opposite sides.Therefore, sun is curved diminishes.
Synthesis example
Primary coat is synthetic with lacquer
Formalin 240g, melamine 125g, trimethylamine 1.5g after 120 minutes, are added phenol 370g in 70 ℃ of reactions again, and paraformaldehyde 140g, trimethylamine 20g were in 90 ℃ of reactions 30 minutes.After this, it is concentrated to reduce pressure, and removes condensation water and unreacted reactant.Add methyl alcohol, obtain the melmac phenol-formaldehyde resin modified lacquer that solid formation is divided into 60 weight %.
Face is coated with synthesizing with lacquer
Tung oil 35g, phenol 65g and p-methyl benzenesulfonic acid 0.1g after 60 minutes, are added paraformaldehyde 30g and ammoniacal liquor 5g in 80 ℃ of reactions again, in 70 ℃ of reactions 120 minutes.It is concentrated to reduce pressure then, adds methyl alcohol, obtains the tung oil modified phenolic resin lacquer (tung oil-modified rate 35 weight %) that solid formation divides 70 weight %.
The manufacturing of preforming material
Impregnated paper base material and drying make above-mentioned primary coat reach 17 weight % with the bonding amount of lacquer.Then flood above-mentioned face and be coated with lacquer, drying gets preforming material A, B, C, D that the bonding amount of all resins reaches 50～54 weight %.The paper base material that is used for preforming material A, B, C, D is as follows:
Preforming material A
With tensile strength vertically is 42.14N/15mm, laterally is brown paper (the heavy 125g/m of paper of 31.36N/15mm
2) make paper base material.
Preforming material B
Vertically be 46.06N/15mm, laterally be the brown paper of 34.30N/15mm (the heavy 125g/m of paper with tensile strength
2) make paper base material.
Preforming material C
Vertically be 44.10N/15mm, laterally be the brown paper of 33.24N/15mm (the heavy 125g/m of paper with tensile strength
2) make paper base material.
Preforming material D
Vertically be 36.46N/15mm, laterally be the brown paper of 26.81N/15mm (the heavy 120g/m of paper with tensile strength
2) make paper base material.
Embodiment 1
With Copper Foil (the thick 35 μ m of Copper Foil of attached adhesive, the thick 30 μ m of adhesive) put 1 preforming material A on the continuous position, 7 the preforming material B that on preforming material A, overlap, in 160 ℃, 9.8MPa heating pressurization 80 minutes, the single side copper-clad laminate of thickness 1.6mm.
Embodiment 2
With position that the Copper Foil of attached adhesive links to each other on put 1 preforming material A, on preforming material A, overlap 6 preforming material C as the intermediate layer, 1 preforming material B of overlapping on the intermediate layer operates similarly to Example 1 again, gets the single side copper-clad laminate of thickness 1.6mm.
Embodiment 3
Stress repeatedly 7 preforming material A being connected, on the preforming material A that gets up of overlapping, overlap, operate similarly to Example 1, obtain the single side copper-clad laminate of thickness 1.6mm with 1 preforming material B with the Copper Foil of attached adhesive.Comparative example 1
Overlap on the Copper Foil of 1 attached adhesive with 8 preforming material B, operate similarly to Example 1, get the single side copper-clad laminate of thickness 1.6mm.Comparative example 2
Put 1 preforming material C, on preforming material C, overlap being connected with the Copper Foil of attached adhesive to be sidelong with 7 preforming material B, operation similarly to Example 1, the single side copper-clad laminate of thickness 1.6mm.Comparative example 3
Stress repeatedly 7 preforming material B being connected with the Copper Foil of attached adhesive, 1 the preforming material A that on the preforming material B that gets up of overlapping, overlaps, operation similarly to Example 1, the single side copper-clad laminate of thickness 1.6mm.Comparative example 4
Put 1 preforming material D being connected with the Copper Foil of attached adhesive to be sidelong, 7 the preforming material B that on preforming material D, overlap, operation similarly to Example 1, the single side copper-clad laminate of thickness 1.6mm.
Single side copper-clad laminate to gained carries out following amount of warpage test.
After each copper-clad laminate sample carried out circuit processing, die-cut long 300mm, the test film of wide 200mm.This test film is placed in the platform, measures 4 jiaos upwarping, obtain mean value with dial ga(u)ge.Gained the results are shown in Table 1.
Table 1
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Preforming material Copper Foil side, (1) Copper Foil opposition side in the middle of, (2), (1)/, (2) the tensile strength ratio in length and breadth | A 1 *2 - B 7 0.91 0.91 | A 1 C 6 B 1 0.91 0.91 | A 7 - B 1 0.91 0.91 |
| Amount of warpage (mm) warped surface *1 | 0.3 (+) | 0.5 (+) | 0.7 (+) |
| Project | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| Preforming material Copper Foil side, (1) Copper Foil opposition side in the middle of, (2), (1)/, (2) the tensile strength ratio in length and breadth | B 4 - B 4 1.00 1.00 | C 1 - B 7 0.96 0.97 | B 7 - A 1 1.09 1.09 | D 1 - B 7 0.79 0.78 |
| Amount of warpage (mm) warped surface *1 | 1.2 (+) | 1.1 (+) | 1.5 (+) | 0.4 (-) |
The result of table 1 shows that single side copper-clad laminate of the present invention is littler than existing single side copper-clad laminate amount of warpage.
According to the present invention, the tensile strength that makes the paper base material that is connected side with Copper Foil is 0.8～0.95 times of tensile strength of Copper Foil opposition side paper base material, can obtain the good single side copper-clad laminate of warping characteristic.
Claims (2)
1. single side metal-clad laminate, it is characterized in that, the preformed board peek that paper base material heat of immersion thermosetting resin is formed is opened overlapping, heat pressurized treatments, the single face of gained laminate applies metal forming and forms single side metal-clad laminate, each paper base material is cut the test film of 15mm * 220mm size respectively from vertical and horizontal, each test film is pressed chuck spacing 180mm, the condition that draw speed 50mm/ divides is carried out tension test, value of thrust when rupturing with test film is as the tensile strength (unit: in the time of N/15mm) of each paper base material, with the endwise tensile strength of the outermost paper base material of metal forming opposition side be 40～60N/15mm, transverse tensile strength is 0.70～0.80 times of endwise tensile strength, and the vertical and horizontal tensile strength that is connected the paper base material of side with metal forming is respectively 0.80～0.95 times with the vertical and horizontal tensile strength of the outermost paper base material of metal forming opposition side.
2. single side metal-clad laminate as claimed in claim 1, its feature also is, on the vertical and horizontal of paper base material, be positioned at the paper base material that is connected side with metal forming and with the tensile strength of the paper base material in the centre position of the outermost paper base material of metal forming opposition side, be equal to or greater than the tensile strength that is connected the paper base material of side with metal forming, and be equal to or less than the tensile strength with the outermost paper base material of metal forming opposition side.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP72571/95 | 1995-03-30 | ||
| JP72571/1995 | 1995-03-30 | ||
| JP07257195A JP3348559B2 (en) | 1995-03-30 | 1995-03-30 | Single-sided metal laminate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1132142A CN1132142A (en) | 1996-10-02 |
| CN1061299C true CN1061299C (en) | 2001-01-31 |
Family
ID=13493200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95116059A Expired - Fee Related CN1061299C (en) | 1995-03-30 | 1995-10-06 | Single side metal-clad laminate |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3348559B2 (en) |
| CN (1) | CN1061299C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8263225B2 (en) * | 2004-06-01 | 2012-09-11 | Isola Usa Corp. | Laminate composition for producing reduced curl flat thin core laminate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234189A (en) * | 1985-08-08 | 1987-02-14 | 富士通株式会社 | Display unit |
| US4652324A (en) * | 1983-10-07 | 1987-03-24 | Sanyo-Kokusaku Pulp Co., Ltd. | Process for the production of laminated sheet |
| JPH04223113A (en) * | 1990-12-26 | 1992-08-13 | Hitachi Chem Co Ltd | Manufacture of laminated sheet |
-
1995
- 1995-03-30 JP JP07257195A patent/JP3348559B2/en not_active Expired - Fee Related
- 1995-10-06 CN CN95116059A patent/CN1061299C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4652324A (en) * | 1983-10-07 | 1987-03-24 | Sanyo-Kokusaku Pulp Co., Ltd. | Process for the production of laminated sheet |
| JPS6234189A (en) * | 1985-08-08 | 1987-02-14 | 富士通株式会社 | Display unit |
| JPH04223113A (en) * | 1990-12-26 | 1992-08-13 | Hitachi Chem Co Ltd | Manufacture of laminated sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1132142A (en) | 1996-10-02 |
| JPH08267663A (en) | 1996-10-15 |
| JP3348559B2 (en) | 2002-11-20 |
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