Patent US5210147A successfully refreshed from Google Patents.
US5210147A
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100% Triblock hydrogenated styrene-isoprene-styrene block copolymer adhesive composition
Assignee: Kraton Polymers US LLC
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Filing: 1991-05-20
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Granted: 1993-05-11
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Expires: 2011-05-20
Abstract
Abstract A predominantly linear 100% triblock sequentially polymerized hydrogenated styrene-isoprene-styrene block copolymer composition comprised of linear polymeric blocks for use in adhesives, modified thermoplastic compositions and mechanical goods.
Inventors
- 👤 Jeffrey G. Southwick
- 👤 Earle E. Ewins, Jr.
- 👤 David J. St. Clair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:39
CPC Classifications
C; C09; C09J; C09J153/00; C09J153/02; C09J153/025; C08; C08F; C08F297/00; C08F297/02; C08F297/04; C08F297/046
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
51 words
A linear 100% triblock sequentially polymerized hydrogenated styrene-isoprene-styrene block copolymer containing essentially no diblock and comprised of linear polymeric blocks wherein the styrene content is 18% by weight, the styrene block molecular weight is from 5600 to 6000 and the residual unsaturation content in the polydiene block is less than 20%.
Claim 2
Dependent Claim
51 words
A linear 100% triblock sequentially polymerized hydrogenated styrene-isoprene-styrene block copolymer containing essentially no diblock and comprised of linear polymeric blocks wherein the styrene content is 18% by weight, the styrene block molecular weight is from 5600 to 6000 and the residual unsaturation content in the polydiene block is less than 20%.
Claim 3
Dependent Claim
45 words
An adhesive having a holding power to steel of greater than 500 min and an SAFT of 65° C. or greater comprising the block copolymer of claim 1 and from 20 to 400 parts by weight per 100 parts rubber of a compatible tackifying resin.
Claim 4
Dependent Claim
15 words
A thermoplastic polymer composition comprising a thermoplastic polymer and the block copolymer of claim 1.
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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) | 1996-05-10 | 1996-11-09 | 1997-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-10 | 2000-11-09 | 2001-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-10 | 2004-11-09 | 2005-05-11 | $7700.00 | Window Closed / Lapsed |