US4169206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers containing amino groups and hydroxyl and/or mercapto groups and the use thereof for the production of polyurethane resins
Assignee: Bayer AG
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Filing: 1977-05-02
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Granted: 1979-09-25
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Expires: 1997-05-02
Abstract
Abstract The invention relates to compositions containing both amino groups and hydroxyl and/or mercapto groups. The products are obtained by reacting relatively high molecular weight polyols and/or polythiols with less than equivalent quantities of isatoic acid anhydride.
Inventors
- 👤 Jan Mazanek
- 👤 Johannes Blahak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:51
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5024; C08G18/5027; C08G18/5072; C08G18/52; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/331; C08G65/332; C08G65/333; C08G65/33303; C08G65/33306; C08G65/3332; C08G65/33324; C08G65/338
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
95 words
Compounds corresponding to the following general formula: ##STR5## wherein X represents oxygen or sulphur; R represent a k-valent radical obtainable by removal of k hydroxyl and/or mercapto groups from a material selected from the group consisting of polyether polyols, polythioether polythiols, polyols containing both polyether and polythioether segments and polythiols containing both polyether and polythioether segments, said material having n hydroxyl and/or mercapto groups and a molecular weight of from 1300 to 60,000; n represents an integer of from 2 to 8; and k has an average value of from 0.05 n to 0.7 n.
Claim 2
Dependent Claim
95 words
Compounds corresponding to the following general formula: ##STR5## wherein X represents oxygen or sulphur; R represent a k-valent radical obtainable by removal of k hydroxyl and/or mercapto groups from a material selected from the group consisting of polyether polyols, polythioether polythiols, polyols containing both polyether and polythioether segments and polythiols containing both polyether and polythioether segments, said material having n hydroxyl and/or mercapto groups and a molecular weight of from 1300 to 60,000; n represents an integer of from 2 to 8; and k has an average value of from 0.05 n to 0.7 n.
Claim 3
Dependent Claim
92 words
Compounds corresponding to the following general formula: ##STR6## wherein X represents oxygen R represents a k-valent radical obtainable by removal of k hydroxyl and/or mercapto groups from a material selected from the group consisting of polyether polyols, polythioether polythiols, polyols containing both polyether and polythioether segments and polythiols containing both polyether and polythioether segments, said material having n hydroxyl and/or mercapto groups and a molecular weight of from 1300 to 60,000; n represents an integer of from 2 to 8; and k has an average of from 0.05 n to 0.7 n.
Claim 4
Dependent Claim
92 words
Compounds corresponding to the following general formula: ##STR6## wherein X represents oxygen R represents a k-valent radical obtainable by removal of k hydroxyl and/or mercapto groups from a material selected from the group consisting of polyether polyols, polythioether polythiols, polyols containing both polyether and polythioether segments and polythiols containing both polyether and polythioether segments, said material having n hydroxyl and/or mercapto groups and a molecular weight of from 1300 to 60,000; n represents an integer of from 2 to 8; and k has an average of from 0.05 n to 0.7 n.
Claim 5
Dependent Claim
13 words
Compounds according to claim 2, characterized in that n represents 2 or 3.
Claim 6
Dependent Claim
20 words
Compounds according to claim 2 characterized in that k has an average value of from 0.1 n to 0.4 n.
Claim 7
Dependent Claim
23 words
Compounds according to claim 2 characterized in that R represents the k-valent group of a polyethylene oxide, a polypropylene oxide or a polytetrahydrofuran.
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) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |