US4133731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation cured, high temperature adhesive composition
Assignee: Shell USA Inc
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Filing: 1978-03-03
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Granted: 1979-01-09
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Expires: 1998-03-03
Abstract
Abstract A cured adhesive composition possessing excellent cohesive strength at high temperatures along with excellent adhesion, shear strength and solvent resistance is prepared by the radiation initiated curing of an adhesive composition comprising a monoalkenyl arene/conjugated diene block copolymer, tackifying resin and a di-to-tetra-functional acrylate or methacrylate selected from the group consisting of acrylic and methacrylic acid esters of polyols.
Inventors
- 👤 David R. Hansen
- 👤 David J. St. Clair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:53
CPC Classifications
C; C08; C08F; C08F287/00; C09; C09J; C09J4/00; C09J4/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31895; Y10T428/31909
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
117 words
An adhesive composition possessing good solvent resistance and high temperature cohesive strength prepared by the radiation curing of an adhesive composition in an inert atmosphere, said adhesive composition comprising: (a) 100 parts by weight of a block copolymer having at least two monoalkenyl arene polymer end blocks A and at least one elastomeric conjugated diene mid block B, said block A comprising 8-55% by weight of the block copolymer; (b) about 25 to about 200 parts by weight of a tackifying resin compatible with block B; and (c) about 1 to about 50 parts by weight of a di-to tetrafunctional acrylate or methacrylate selected from the group consisting of the acrylic and methacrylate acid esters of polyols.
Claim 2
Dependent Claim
117 words
An adhesive composition possessing good solvent resistance and high temperature cohesive strength prepared by the radiation curing of an adhesive composition in an inert atmosphere, said adhesive composition comprising: (a) 100 parts by weight of a block copolymer having at least two monoalkenyl arene polymer end blocks A and at least one elastomeric conjugated diene mid block B, said block A comprising 8-55% by weight of the block copolymer; (b) about 25 to about 200 parts by weight of a tackifying resin compatible with block B; and (c) about 1 to about 50 parts by weight of a di-to tetrafunctional acrylate or methacrylate selected from the group consisting of the acrylic and methacrylate acid esters of polyols.
Claim 3
Dependent Claim
16 words
A composition according to claim 1 wherein the type of radiation cure is electron beam irradiation.
Claim 4
Dependent Claim
15 words
A composition according to claim 1 wherein the type of radiation cure is ultraviolet irradiation.
Claim 5
Dependent Claim
10 words
A composition according to claim 3 also including a photosensitizer.
Claim 6
Dependent Claim
33 words
A composition according to claim 1 wherein said acrylate or methacrylate is selected from the group consisting of 1,6-hexane diol diacrylate, 1,6-hexane diol dimethacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, pentaerythritol tetracrylate, and pentaerythritol tetramethacrylate.
Claim 7
Dependent Claim
12 words
A composition according to claim 5 wherein said methacrylate is trimethyolpropane trimethacrylate.
Claim 8
Dependent Claim
16 words
A composition according to claim 1 wherein said block copolymer is a linear polystyrene-polyisoprene-polystyrene block copolymer.
Claim 9
Dependent Claim
16 words
A composition according to claim 1 wherein said block copolymer is a radial polystyrene/polyisoprene block copolymer.
Claim 10
Dependent Claim
16 words
A composition according to claim 1 wherein said block copolymer is a star-shaped polystyrene/polyisoprene block copolymer.
Claim 11
Dependent Claim
20 words
A composition according to claim 2 wherein the amount of radiation employed is between about 1 and about 50 megarads.
Claim 12
Dependent Claim
20 words
A composition according to claim 10 wherein the amount of radiation employed is between about 2 and about 25 megarads.
Claim 13
Dependent Claim
24 words
A composition according to claim 11 wherein the amount of acrylate or methacrylate employed is between about 2 and about 25 parts by weight.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |