US4562240A
Expired / Lapsed
US
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Bicyclic amide acetal/polyol/polyisocyanate polymers
Assignee: Ashland LLC
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Filing: 1984-12-20
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Granted: 1985-12-31
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Expires: 2004-12-20
Abstract
Abstract A process is described for preparing novel polyurethane polymers which have good impact resistance and other desirable physical properties, said process comprising interpolymerizing a mixture of a bicyclic amide acetal, a polyol and a polyisocyanate.
Inventors
- 👤 Anil B. Goel
- 👤 Timothy A. Tufts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:06
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3823; C08G18/3825; C08G18/3827; C08G18/08; C08G18/0838; C08G18/0842; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08G2120/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
68 words
The process for preparing a polymer having high impact strength comprising interpolymerizing a mixture of a bicyclic amide acetal, a polyol and a polyisocyanate wherein the weight ratio of bicyclic amide acetal to polyol is in the range of from about 99:1 to 0.1:99.9 and the equivalent ratio of polyisocyanate to combined polyol and bicyclic amide acetal is in the range of from about 0.8:1 to about 3:1.
Claim 2
Dependent Claim
68 words
The process for preparing a polymer having high impact strength comprising interpolymerizing a mixture of a bicyclic amide acetal, a polyol and a polyisocyanate wherein the weight ratio of bicyclic amide acetal to polyol is in the range of from about 99:1 to 0.1:99.9 and the equivalent ratio of polyisocyanate to combined polyol and bicyclic amide acetal is in the range of from about 0.8:1 to about 3:1.
Claim 3
Dependent Claim
86 words
The process of Claim 1 wherein the bicyclic amideacetal is one having the formula ##STR4## wherein R, R' and R'" independently represent hydrogen or an alkyl group having from 1 to 18 carbon atoms, R'" also represents an alkyl ether, an aryl or an alkaryl ether group having from 1-18 carbon atoms and R" represents an alkyl group having from 1 to 18 carbon atoms, an aryl group having from 6 to 12 carbon atoms or an alkaryl group having from 7 to 20 carbon atoms.
Claim 4
Dependent Claim
46 words
The process of Claim 2 wherein the weight ratio of bicyclic amide acetal to polyol ranges from about 99:1 to 0.1:99.9 and the equivalent ratio of isocyanate to hydroxyl and one-half bicyclic amide acetal groups is in the range of from about 0.8:1 to about 3:1.
Claim 5
Dependent Claim
39 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R, R' and R'" are H and R" is CH 3 , the polyol is butane diol and the polyisocyanate is 4,4'-methylene bis (phenyl isocyanate).
Claim 6
Dependent Claim
42 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R and R" are CH 3 , R' is H and R"' is CH 2 OPh, the polyol is butane diol and the polyisocyanate is 4,4'-methylene bis(phenyl isocyanate).
Claim 7
Dependent Claim
41 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R, R' and R'" are H and R" is CH 3 . the polyol is poly (tetramethylene ether) diol and the polyisocyanate is 4,4'-methylene bis (phenyl isocyanate).
Claim 8
Dependent Claim
38 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R,R' and R'" are H and R" is CH 3 , the polyol is 1,4-cyclohexane dimethanol and the polyisocyanate is 4,4'-methylene bis (phenyl isocyanate).
Claim 9
Dependent Claim
46 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R,R' and R'" are H and R" is CH 3 , the polyisocyanate is 4,4'-methylene bis(phenyl isocyanate) and the polyol is a triol which is an ethylene oxide tipped branched polypropylene glycol.
Claim 10
Dependent Claim
40 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R,R' and R'" are H and R" is CH 3 , the polyisocyanate is 4,4'-methylene bis (phenyl isocyanate) and the polyol is a polyethylene adipate diol.
Claim 11
Dependent Claim
43 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R and R" are methyl, R' is H and R"' is CH 2 OPh, the polyisocyanate is 4,4'-methylene bis (phenyl isocyanate) and the polyol is poly tetramethylene ether diol.
Claim 12
Dependent Claim
56 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R,R' and R'" are H and R" is CH 3 , the polyisocyanate is 4,4'-methylene bis(phenyl isocyanate) and the polyol is a diol prepared by end capping each of the carboxyl groups of dimerized linoleic acid with a mole of ethylene oxide.
Claim 13
Dependent Claim
55 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R,R' and R'" are H, and R" is CH 3 , the polyisocyanate is 4,4'-methylene bis(phenyl isocyanate) and the polyol is a liquid carboxyl terminated acrylonitrile butadiene copolymer which has reacted with the bicyclic amide acetal to form terminal hydroxyl groups.
Claim 14
Dependent Claim
41 words
The process of Claim 3 wherein the bicyclic amide acetal is one in which R, R' and R'" are H, and R" is CH 3 , the polyisocyanate is 4,4'-methylene bis (phenyl isocyanate) and the polyol is a hydroxyl terminated polycarbonate.
Claim 15
Dependent Claim
9 words
The polymer produced by the process of Claim 1.
References Cited (Backward Citations)
US3824164A
Cited
US3773730A
Cited
US3738992A
Cited
US3952000A
Cited
US4101527A
Cited
US4277353A
Cited
DE3235933A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-30 | 1989-07-01 | 1989-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-30 | 1993-07-01 | 1993-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-30 | 1997-07-01 | 1997-12-31 | $7700.00 | Window Closed / Lapsed |