US4732959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesterpolyol derivative and a poly(urethane)ureamide obtained therefrom
Assignee: Toyo Tire Corp
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Filing: 1985-11-13
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Granted: 1988-03-22
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Expires: 2005-11-13
Abstract
Abstract A polymer comprising a poly(urethane)ureamide is prepared by a reaction of a polyisocyanate and a polyesterpolyol derivative of the formula [I] ##STR1## wherein A is an n-valaent radical obtained by removal of terminal hydrogen atoms from an n-valaent polyester-polyol having a molecular weight of 400 to 10,000 and containing ##STR2## group in the main chain, n is an integer of 2≦n≦4, x is an average value and a number of 0≦x≦(n-1), --NH-- group of ##STR3## in the main chain forms an amido group connected with a carbonyl group of an aminobenzoic acid and/or a carbonyl group of a polybasic acid component of the polyesterpolyol and, --CO-- group of ##STR4## in the main chain forms an ester group or amido group. The polymer has higher heat resistance and greater mechanical strength as compared to corresponding polyester-urethanes.
Inventors
- 👤 Kozo Otani
- 👤 Yoshio Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:18
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/46; C08G18/4615; C08G18/4623; C08G18/60; C08G18/606
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
109 words
A polyesterpolyol derivative of the formula ##STR13## wherein A is an n-valent radical obtained by removal of terminal hydrogen atoms from an n-valaent polyesterpolyol having a molecular weight of 400 to 10,000 and containing ##STR14## group in the main chain, n is an integer of 2 to 4, x is an average value and a number of 0 to (n-1), --NH-- group of ##STR15## in the main chain forms an amido group connected with a carbonyl group of an aminobenzoic acid and/or a carbonyl group of a polybasic acid component of the polyesterpolyol and, --CO-- group of ##STR16## in the main chain forms an ester group or amido group,
Claim 2
Dependent Claim
109 words
A polyesterpolyol derivative of the formula ##STR13## wherein A is an n-valent radical obtained by removal of terminal hydrogen atoms from an n-valaent polyesterpolyol having a molecular weight of 400 to 10,000 and containing ##STR14## group in the main chain, n is an integer of 2 to 4, x is an average value and a number of 0 to (n-1), --NH-- group of ##STR15## in the main chain forms an amido group connected with a carbonyl group of an aminobenzoic acid and/or a carbonyl group of a polybasic acid component of the polyesterpolyol and, --CO-- group of ##STR16## in the main chain forms an ester group or amido group,
Claim 3
Dependent Claim
39 words
A process for preparing the polyesterpolyol derivative of claim 1 which comprises reacting one mole of an n-valent polyesterpolyol having a molecular weight of 400 to 10,000 with 0.25 n to 10 n moles of aminobenzoic acid alkyl ester.
Claim 4
Dependent Claim
20 words
A polymer which comprises a poly(urethane)ureamide obtained by a reaction of a polyisocyanate and the polyesterpolyol derivative of claim 1.
Claim 5
Dependent Claim
34 words
A polymer as defined in claim 3 which is obtained by further reacting a chain extender having a molecular weight of up to 400, in the reaction of the polyesterpolyol derivative and the polyisocyanate.
Claim 6
Dependent Claim
39 words
A polymer as defined in claim 3 which is obtained by further reacting a long-chain polyol, long-chain polyamine and/or long-chain aminopolyol, each having a molecular weight more than 400, in the reaction of the polyesterpolyol derivative and the polyisocyanate.
Claim 7
Dependent Claim
46 words
A process for preparing the polymer of claim 3 which comprises reacting one mole of an n-valent polyesterpolyol having a molecular weight of 400 to 10,000 with 0.25 n to 10 n moles of aminobenzoic acid alkyl ester, and reacting the polyesterpolyol derivative with a polyisocyanate.
Claim 8
Dependent Claim
34 words
A process as defined in claim 6, wherein the reaction of the polyesterpolyol derivative and the polyisocyanate is conducted in the presence of a chain extender having a molecular weight of up to 400.
Claim 9
Dependent Claim
41 words
A process as defined in claim 6, wherein the reaction of the polyesterpolyol derivative and the polyisocyanate involves the further reaction of a long-chain polyol, a long-chain polyamine and/or a long-chain aminopolyol, each having a molecular weight of more than 400.
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) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |