US4432848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation cured, high temperature pressure-sensitive adhesive
Assignee: Permacel
•
Filing: 1981-11-19
•
Granted: 1984-02-21
•
Expires: 2001-11-19
Abstract
Abstract Pressure-sensitive adhesives with superior high temperature adhesion properties are prepared by radiation curing of an adhesive composition comprising a simple block copolymer as the elastomer component.
Inventors
- 👤 Ralf Korpman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:53
CPC Classifications
C; C08; C08F; C08F287/00; C09; C09J; C09J4/00; C09J4/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
125 words
An adhesive possessing good solvent resistance and high temperature cohesive strength prepared by high energy radiation curing of an adhesive composition comprising (a) an elastomer component comprising an A-B block copolymer wherein A represents a poly(alkenylarene) block and B represents a polyisoprene block, (b) a tackifier resin component comprising a polyisoprene block compatible tackifier resin, said resin being employed in an amount of from about 50 to 100 parts by weight for 100 parts by weight of the elastomer component, and (c) a coupling agent component, said coupling agent component being an acrylic or a methacrylic acid ester of a di- to tetra-functional polyol, in an amount of from about 5 to 25 parts by weight per 100 parts by weight of the elastomer component.
Claim 2
Dependent Claim
125 words
An adhesive possessing good solvent resistance and high temperature cohesive strength prepared by high energy radiation curing of an adhesive composition comprising (a) an elastomer component comprising an A-B block copolymer wherein A represents a poly(alkenylarene) block and B represents a polyisoprene block, (b) a tackifier resin component comprising a polyisoprene block compatible tackifier resin, said resin being employed in an amount of from about 50 to 100 parts by weight for 100 parts by weight of the elastomer component, and (c) a coupling agent component, said coupling agent component being an acrylic or a methacrylic acid ester of a di- to tetra-functional polyol, in an amount of from about 5 to 25 parts by weight per 100 parts by weight of the elastomer component.
Claim 3
Dependent Claim
44 words
An adhesive according to claim 1 wherein the elastomer component consist substantially solely of A-B block copolymer and wherein the amount of radiation employed is from about 3 to 12 megarads with the amount of radiation varying inversely with the amount of coupling agent.
Claim 4
Dependent Claim
66 words
An adhesive according to claim 1 wherein the elastomer component comprises a major portion of an A-B block copolymer and a minor proportion of an A-B-A block copolymer wherein A and B represent poly(alkenylarene) block and polyisoprene block respectively, and wherein the amount of radiation employed is from about 3 to 12 megarads with the amount of radiation varying inversely with the amount of coupling agent.
Claim 5
Dependent Claim
18 words
An adhesive according to claim 1 wherein the coupling agent component of the adhesive composition is trimethylolpropane triacrylate.
Claim 6
Dependent Claim
153 words
An adhesive possessing good solvent resistance and high temperature cohesive strength prepared by high energy radiation curing of an adhesive composition comprising (a) an elastomer component consisting substantially solely of an A-B block copolymer wherein A represents a poly(alkenylarene) block and B represents a polyisoprene block, (b) a tackifier resin component comprising a polyisoprene block compatible tackifier resin, said resin being employed in an amount of from about 50 to 100 parts by weight for 100 parts by weight of the elastomer component, and (c) a coupling agent component, said coupling agent component being an acrylic or methacrylic acid ester of a di- to tetra-functional polyol, in an amount of from about 5 to 25 parts by weight per 100 parts by weight of the elastomer component wherein the amount of radiation employed is about 3 to about 12 megarads with the amount of radiation varying inversely with the amount of coupling agent.
Claim 7
Dependent Claim
153 words
An adhesive possessing good solvent resistance and high temperature cohesive strength prepared by high energy radiation curing of an adhesive composition comprising (a) an elastomer component consisting substantially solely of an A-B block copolymer wherein A represents a poly(alkenylarene) block and B represents a polyisoprene block, (b) a tackifier resin component comprising a polyisoprene block compatible tackifier resin, said resin being employed in an amount of from about 50 to 100 parts by weight for 100 parts by weight of the elastomer component, and (c) a coupling agent component, said coupling agent component being an acrylic or methacrylic acid ester of a di- to tetra-functional polyol, in an amount of from about 5 to 25 parts by weight per 100 parts by weight of the elastomer component wherein the amount of radiation employed is about 3 to about 12 megarads with the amount of radiation varying inversely with the amount of coupling agent.
Claim 8
Dependent Claim
18 words
An adhesive according to claim 5 wherein the coupling agent component of the adhesive composition is trimethylolpropane triacrylate.
References Cited (Backward Citations)
US2956904A
Cited
US3787531A
Cited
US3681190A
Cited
US4069123A
Cited
US4133731A
Cited
US4151057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |