US3919035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding styrene-butadiene block copolymers to other surfaces
Assignee: STEIN HALL Ltd
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Filing: 1973-10-10
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Granted: 1975-11-11
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Expires: 1993-10-10
Abstract
Abstract Styrene-butadiene block copolymer thermoplastic rubber compositions are bonded to other surfaces, such as polyvinyl chloride, leather, canvas and the like, by (1) coating the surface of the block copolymer composition and/or the other surface with a primer, which is an organic solvent solution of a graft copolymer of a styrene-butadiene block copolymer and an alkyl methacrylate, (2) applying an adhesive to both surfaces and (3) pressing the surfaces together for a time sufficient to obtain a suitable bond. This invention is of particular value in preparing shoes using styrene-butadiene block copolymer soling materials.
Inventors
- 👤 Wolfgang Warrach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:14
CPC Classifications
A; A43; A43B; A43B9/00; A43B9/12; C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C08J5/125; C09; C09J; C09J5/00; C09J5/02; C08J2353/00; C08J2353/02; C09J2400/00; C09J2400/20; C09J2400/26; C09J2400/266; C09J2409/00; C09J2409/008; C09J2427/00; C09J2427/008; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31924; Y10T428/31928
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
114 words
A METHOD OF BONDING A STYRENE-BUTADIENE BLOCK COPOLYMER THERMOPLASTIC RUBBER COMPOSITION TO A SURFACE WHICH COMPRISES: A. COATING THE BLOCK COPOLYMER THERMOPLASTIC RUBBER COMPOSITION AND THE OTHER SURFACE WITH A PRIMER, B. APPLYING AN ADHESIVE TO THE COATED SURFACES, AND C. PRESSING THE SURFACE TOGETHER AT A PRESSURE AND FOR A TIME SUFFICIENT TO OBTAIN ADEQUATE ADHESION, WHEREIN THE PRIMER IS COMPRISED OF AN ORGANIC SOLVENT SOLUTION OF A GRAFT COPOLYMER OF A STYRENE-BUTADIENE BLOCK COPOLYMER THERMOPLASTIC RUBBER AND AN ALKYL METHACRYLATE HAVING 1 TO 4 CARBON ATOMS IN THE ALKYL GROUP AND WHEREIN THE GRAFT COPOLYMER CONTAINS ABOUT 30 TO 90% BY WEIGHT BLOCK COPOLYMER AND 70 TO 10% BY WEIGHT ALKYL METHACRYLATE.
Claim 2
Independent Claim
114 words
A METHOD OF BONDING A STYRENE-BUTADIENE BLOCK COPOLYMER THERMOPLASTIC RUBBER COMPOSITION TO A SURFACE WHICH COMPRISES: A. COATING THE BLOCK COPOLYMER THERMOPLASTIC RUBBER COMPOSITION AND THE OTHER SURFACE WITH A PRIMER, B. APPLYING AN ADHESIVE TO THE COATED SURFACES, AND C. PRESSING THE SURFACE TOGETHER AT A PRESSURE AND FOR A TIME SUFFICIENT TO OBTAIN ADEQUATE ADHESION, WHEREIN THE PRIMER IS COMPRISED OF AN ORGANIC SOLVENT SOLUTION OF A GRAFT COPOLYMER OF A STYRENE-BUTADIENE BLOCK COPOLYMER THERMOPLASTIC RUBBER AND AN ALKYL METHACRYLATE HAVING 1 TO 4 CARBON ATOMS IN THE ALKYL GROUP AND WHEREIN THE GRAFT COPOLYMER CONTAINS ABOUT 30 TO 90% BY WEIGHT BLOCK COPOLYMER AND 70 TO 10% BY WEIGHT ALKYL METHACRYLATE.
Claim 3
Independent Claim
127 words
A method of bonding a styrene-butadiene block copolymer thermoplastic rubber soling material to a polyvinyl chloride shoe upper material which comprises: A. coating a surface of the polyvinyl chloride shoe upper material with a primer; B. applying an adhesive to the coated surface of the polyvinyl chloride and to the soling material, and C. pressing the surfaces together at a pressure and for a time sufficient to obtain adequate adhesion, wherein the primer is comprised of an organic solvent solution of a graft copolymer of a styrene-butadiene block copolymer thermoplastic rubber and an alkyl methacrylate having 1 to 4 carbon atoms in the alkyl group and wherein the graft copolymer contains about 30 to 90% by weight block copolymer and 70 to 10% by weight alkyl methacrylate.
Claim 4
Independent Claim
127 words
A method of bonding a styrene-butadiene block copolymer thermoplastic rubber soling material to a polyvinyl chloride shoe upper material which comprises: A. coating a surface of the polyvinyl chloride shoe upper material with a primer; B. applying an adhesive to the coated surface of the polyvinyl chloride and to the soling material, and C. pressing the surfaces together at a pressure and for a time sufficient to obtain adequate adhesion, wherein the primer is comprised of an organic solvent solution of a graft copolymer of a styrene-butadiene block copolymer thermoplastic rubber and an alkyl methacrylate having 1 to 4 carbon atoms in the alkyl group and wherein the graft copolymer contains about 30 to 90% by weight block copolymer and 70 to 10% by weight alkyl methacrylate.
Claim 5
Dependent Claim
46 words
The method of claim 2 wherein the primer contains 2-14% by weight, based on the total primer weight, of the graft copolymer, 0-5% by weight residual alkyl methacrylate monomer and 0-20% by weight, based on the graft copolymer weight, of a homopolymer of the alkyl methacrylate.
Claim 6
Dependent Claim
21 words
The method of claim 2 wherein the adhesive is an organic solvent solution of a styrene-butadiene block copolymer and a tackifier.
Claim 7
Dependent Claim
18 words
The method of claim 2 wherein the bonding is performed at a temperature of from 20*C. to 80*C.
Claim 8
Independent Claim
126 words
A method of bonding a styrene-butadiene block copolymer thermoplastic rubber soling material to a shoe upper material which comprises: A. coating a surface of the soling material with a primer; B. applying an adhesive to the coated surface of the soling material and to a surface of the shoe upper material; and C. pressing the surfaces together at a pressure and for a time sufficient to obtain adequate adhesion, wherein the primer is comprised of an organic solvent solution of a graft copolymer of a styrene-butadiene block copolymer thermoplastic rubber and an alkyl methacrylate having 1 to 4 carbon atoms in the alkyl group and wherein the graft copolymer contains about 30 to 90% by weight block copolymer and 70 to 10% by weight alkyl methacrylate.
Claim 9
Independent Claim
126 words
A method of bonding a styrene-butadiene block copolymer thermoplastic rubber soling material to a shoe upper material which comprises: A. coating a surface of the soling material with a primer; B. applying an adhesive to the coated surface of the soling material and to a surface of the shoe upper material; and C. pressing the surfaces together at a pressure and for a time sufficient to obtain adequate adhesion, wherein the primer is comprised of an organic solvent solution of a graft copolymer of a styrene-butadiene block copolymer thermoplastic rubber and an alkyl methacrylate having 1 to 4 carbon atoms in the alkyl group and wherein the graft copolymer contains about 30 to 90% by weight block copolymer and 70 to 10% by weight alkyl methacrylate.
Claim 10
Dependent Claim
46 words
The method of claim 6 wherein the primer contains 2-14% by weight, based on the total primer weight, of the graft copolymer, 0-5% by weight residual alkyl methacrylate monomer and 0-20% by weight, based on the graft copolymer weight, of a homopolymer of the alkyl methacrylate.
Claim 11
Dependent Claim
16 words
The method of claim 6 wherein the shoe upper material is polyvinyl chloride, leather, or canvas.
Claim 12
Dependent Claim
12 words
The method of claim 6 wherein the adhesive is a polyurethane cement.
Claim 13
Dependent Claim
18 words
The method of claim 6 wherein the bonding is performed at a temperature of from 20*C. to 80*C.
References Cited (Backward Citations)
US2395133A
Cited
US2669535A
Cited
US3429769A
Cited
US3562356A
Cited
US3621077A
Cited
US3652724A
Cited
US3806486A
Cited
US3738907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |