Patent US4151057A successfully refreshed from Google Patents.
US4151057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature adhesive made by exposure to radiation
Assignee: Shell USA Inc
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Filing: 1978-08-14
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Granted: 1979-04-24
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Expires: 1998-08-14
Abstract
Abstract A cured adhesive composition possessing excellent cohesive strength at high temperatures along with excellent shear strength and solvent resistance is prepared by the electron beam initiated curing of an adhesive composition comprising selectively hydrogenated monoalkenyl arene/conjugated diene block copolymer component, 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 J. St. Clair
- 👤 David R. Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:46
CPC Classifications
C; C09; C09J; C09J4/00; C09J4/06; C08; C08F; C08F291/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
131 words
An adhesive composition possessing excellent UV stability and high temperature cohesive strength prepared by the electron beam curing of an adhesive composition, said adhesive composition comprising: (a) 100 parts by weight of a block copolymer component comprising an A'B' block copolymer and a multiblock copolymer having at least two end blocks A and at least one mid block B wherein the A' and A blocks are monoalkenyl arene polymer blocks and the B' and B blocks are substantially completely hydrogenated conjugated diene polymer blocks; (b) about 25 to about 200 parts by weight of a tackifying resin compatible with block B; and (c) about 1 to about 100 parts by weight of a di-to-tetra-functional acrylate or methacrylate selected from the group consisting of the acrylic and methacrylic acid esters of polyols.
Claim 2
Dependent Claim
131 words
An adhesive composition possessing excellent UV stability and high temperature cohesive strength prepared by the electron beam curing of an adhesive composition, said adhesive composition comprising: (a) 100 parts by weight of a block copolymer component comprising an A'B' block copolymer and a multiblock copolymer having at least two end blocks A and at least one mid block B wherein the A' and A blocks are monoalkenyl arene polymer blocks and the B' and B blocks are substantially completely hydrogenated conjugated diene polymer blocks; (b) about 25 to about 200 parts by weight of a tackifying resin compatible with block B; and (c) about 1 to about 100 parts by weight of a di-to-tetra-functional acrylate or methacrylate selected from the group consisting of the acrylic and methacrylic acid esters of polyols.
Claim 3
Dependent Claim
25 words
A composition according to claim 1 wherein the weight ratio between the AB block copolymer and the multiblock copolymer is about 0:100 to about 90:10.
Claim 4
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 5
Dependent Claim
12 words
A composition according to claim 3 wherein said methacrylate is trimethylolpropane trimethacrylate.
Claim 6
Dependent Claim
18 words
A composition according to claim 1 wherein said multiblock copolymer is a selectively hydrogenated linear polystyrene-polybutadiene-polystyrene block copolymer.
Claim 7
Dependent Claim
18 words
A composition according to claim 5 wherein said A'B' block copolymer is a selectively hydrogenated polystyrene-polybutadiene block copolymer.
Claim 8
Dependent Claim
18 words
A composition according to claim 5 wherein said A'B' block copolymer is a selectively hydrogenated polystyrene-polyisoprene block copolymer.
Claim 9
Dependent Claim
17 words
A composition according to claim 1 wherein said multiblock copolymer is a selectively hydrogenated polystyrene-polyisoprene-polystyrene block copolymer.
Claim 10
Dependent Claim
20 words
A composition according to claim 1 wherein the amount of radiation employed is between about 1 and about 50 megarads.
Claim 11
Dependent Claim
20 words
A composition according to claim 3 wherein the amount of radiation employed is between about 2 and about 25 megarads.
Claim 12
Dependent Claim
24 words
A composition according to claim 1 wherein the amount of acrylate or methacrylate employed is between about 6 and about 25 parts by weight.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |