Patent US5449718A successfully refreshed from Google Patents.
US5449718A
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Epoxidized viscous conjugated diene block copolymers
Assignee: Kraton Polymers US LLC
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Filing: 1993-09-30
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Granted: 1995-09-12
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Expires: 2013-09-30
Abstract
Abstract A viscous block copolymer of the formula (A--B--A.sub.p).sub.n --Y.sub.r --(A.sub.q --B).sub.m wherein Y is a coupling agent or coupling monomers, and wherein A and B are polymer blocks which may be homopolymer blocks of conjugated diolefin monomers, copolymer blocks of conjugated diolefin monomers or copolymer blocks of conjugated diolefin monomers and monoalkenyl aromatic hydrocarbon monomers, and wherein the A blocks have a higher number of more highly substituted aliphatic double bonds per unit of block mass than do the B blocks, and wherein the A blocks have a molecular weight from about 100 to about 3000 and the B blocks have a molecular weight from about 1000 to about 15,000, and wherein p and q are 0 or 1 and n>0, r is 0 or 1, m≧0 and n+m ranges from 1 to 100. This block copolymer is preferably partially hydrogenated, epoxidized and crosslinked through at least some of the epoxy functionality to form an adhesive, coating or sealant composition.
Inventors
- 👤 James R. Erickson
- 👤 David J. St. Clair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:07
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/027; C08F; C08F297/00; C08F297/02; C08F297/023; C08F297/04; C08F297/044; C08F8/00; C08F8/04; C08F8/08; C08J; C08J3/00; C08J3/28; C08L; C08L63/00; C08L63/08; C09; C09D; C09D153/00; C09D153/005; C09D153/02; C09D153/025; C09J; C09J153/00; C09J153/005; C09J153/02; C09J153/025; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/20; C08J2353/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
188 words
A viscous block copolymer of the formula (A--B--A.sub.p).sub.n --Y.sub.r --(A.sub.q --B).sub.m wherein Y is a coupling agent, coupling monomers or an initiator, and wherein A is a polymer block which is a homopolymer block of conjugated diolefin monomer, a copolymer block of conjugated diolefin monomers or a copolymer block of conjugated diolefin monomers and monoalkenyl aromatic hydrocarbon monomers, and wherein B is a polymer block which is a homopolymer or copolymer block of monoalkenyl aromatic hydrocarbon monomer(s) or a copolymer block of monoalkenyl aromatic hydrocarbon monomer(s) and a minor amount of a conjugated diene, and wherein the A blocks have a greater number of di-, tri- and tetra-substituted epoxides per unit of block mass than do the B blocks, and wherein the A blocks have a molecular weight from about 100 to about 3000 and the B blocks have a molecular weight from about 1000 to about 15,000, and wherein p and q are 0 or 1 and n>0, r is 0 or 1, m≧0 and n+m ranges from 1 to 100; and wherein the copolymer is epoxidized such that 0.1 to 3 Meq/g of epoxide is present.
Claim 2
Dependent Claim
188 words
A viscous block copolymer of the formula (A--B--A.sub.p).sub.n --Y.sub.r --(A.sub.q --B).sub.m wherein Y is a coupling agent, coupling monomers or an initiator, and wherein A is a polymer block which is a homopolymer block of conjugated diolefin monomer, a copolymer block of conjugated diolefin monomers or a copolymer block of conjugated diolefin monomers and monoalkenyl aromatic hydrocarbon monomers, and wherein B is a polymer block which is a homopolymer or copolymer block of monoalkenyl aromatic hydrocarbon monomer(s) or a copolymer block of monoalkenyl aromatic hydrocarbon monomer(s) and a minor amount of a conjugated diene, and wherein the A blocks have a greater number of di-, tri- and tetra-substituted epoxides per unit of block mass than do the B blocks, and wherein the A blocks have a molecular weight from about 100 to about 3000 and the B blocks have a molecular weight from about 1000 to about 15,000, and wherein p and q are 0 or 1 and n>0, r is 0 or 1, m≧0 and n+m ranges from 1 to 100; and wherein the copolymer is epoxidized such that 0.1 to 3 Meq/g of epoxide is present.
Claim 3
Dependent Claim
23 words
The block copolymer of claim 1 wherein the copolymer is crosslinked through at least some of the epoxy functionality by exposure to radiation.
Claim 4
Dependent Claim
20 words
The block copolymer of claim 1 wherein the copolymer is chemically crosslinked through at least some of the epoxy functionality.
Claim 5
Dependent Claim
10 words
An adhesive composition comprising the block copolymer of claim 2.
Claim 6
Dependent Claim
10 words
An adhesive composition comprising the block copolymer of claim 3.
Claim 7
Dependent Claim
10 words
A coating composition comprising the block copolymer of claim 2.
Claim 8
Dependent Claim
10 words
A coating composition comprising the block copolymer of claim 3.
Claim 9
Dependent Claim
10 words
A sealant composition comprising the block copolymer of claim 2.
Claim 10
Dependent Claim
10 words
A sealant composition comprising the block copolymer of claim 3.
Claim 11
Dependent Claim
31 words
The block copolymer of claim 1 which is partially hydrogenated before epoxidation such that the amount of aliphatic double bonds remaining in the copolymer is from 0.1 to 3 Meq/g polymer.
Claim 12
Dependent Claim
32 words
The block copolymer of claim 1 which has been epoxidized and hydrogenated such that the amount of aliphatic double bonds in the copolymer has been reduced to 0.5 Meq/g polymer or less.
Claim 13
Dependent Claim
23 words
The block copolymer of claim 10 wherein the copolymer is crosslinked through at least some of the epoxy functionality by exposure to radiation.
Claim 14
Dependent Claim
20 words
The block copolymer of claim 10 wherein the copolymer is chemically crosslinked through at least some of the epoxy, functionality.
Claim 15
Dependent Claim
10 words
An adhesive composition comprising the block copolymer of claim 12.
Claim 16
Dependent Claim
10 words
An adhesive composition comprising the block copolymer of claim 13.
Claim 17
Dependent Claim
10 words
A coating composition comprising the block copolymer of claim 12.
Claim 18
Dependent Claim
10 words
A coating composition comprising the block copolymer of claim 13.
Claim 19
Dependent Claim
10 words
A sealant composition comprising the block copolymer of claim 12.
Claim 20
Dependent Claim
10 words
A sealant composition comprising the block copolymer of claim 13.
Claim 21
Dependent Claim
184 words
A viscous block copolymer of the formula (A--B--A.sub.p).sub.n --Y.sub.r --(A.sub.q --B).sub.m wherein Y is a coupling agent, coupling monomers or an initiator, and wherein A is a polymer block which is a homopolymer block of conjugated diolefin monomer, a copolymer blocks of conjugated diolefin monomers or a copolymer block of conjugated diolefin monomers and monoalkenyl aromatic hydrocarbon monomers, and wherein B is a polymer block which is a homopolymer or copolymer block of monoalkenyl aromatic monomer(s) or a copolymer block of monoalkenyl aromatic hydrocarbon monomer(s) and a minor amount of a conjugated diene, and wherein the A blocks have a greater number of di-, tri- and tetra-substituted unsaturation sites per unit of block mass than do the B blocks, and wherein the A blocks have a molecular weight from 100 to 3000 and the B blocks have a molecular weight from 1000 to 15,000 and wherein p and q are 0 or 1 and n>0, r is 0 or 1, m=0 and n+m ranges from 1 to 100; and wherein the copolymer is epoxidized such that 0.1 to 3 Meq/g of epoxide is present.
Claim 22
Dependent Claim
184 words
A viscous block copolymer of the formula (A--B--A.sub.p).sub.n --Y.sub.r --(A.sub.q --B).sub.m wherein Y is a coupling agent, coupling monomers or an initiator, and wherein A is a polymer block which is a homopolymer block of conjugated diolefin monomer, a copolymer blocks of conjugated diolefin monomers or a copolymer block of conjugated diolefin monomers and monoalkenyl aromatic hydrocarbon monomers, and wherein B is a polymer block which is a homopolymer or copolymer block of monoalkenyl aromatic monomer(s) or a copolymer block of monoalkenyl aromatic hydrocarbon monomer(s) and a minor amount of a conjugated diene, and wherein the A blocks have a greater number of di-, tri- and tetra-substituted unsaturation sites per unit of block mass than do the B blocks, and wherein the A blocks have a molecular weight from 100 to 3000 and the B blocks have a molecular weight from 1000 to 15,000 and wherein p and q are 0 or 1 and n>0, r is 0 or 1, m=0 and n+m ranges from 1 to 100; and wherein the copolymer is epoxidized such that 0.1 to 3 Meq/g of epoxide is present.
Claim 23
Dependent Claim
36 words
The block copolymer of claim 20 wherein the molecular weight of the A blocks ranges from about 300 to about 2,000 and the molecular weight of the B block ranges from about 2000 to about 10,000.
Claim 24
Dependent Claim
32 words
The block copolymer of claim 20 which has been partially hydrogenated such that the amount of aliphatic double bonds remaining in the copolymer i s from 0. 1 to about 3 Meq/g.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1998-09-11 | 1999-03-13 | 1999-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-11 | 2003-03-13 | 2003-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-11 | 2007-03-13 | 2007-09-12 | $7700.00 | Window Closed / Lapsed |