US3856830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizable urethane compounds
Assignee: Zeneca Inc
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Filing: 1971-12-23
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Granted: 1974-12-24
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Expires: 1991-12-23
Abstract
Abstract Ethylenically unsaturated urethane monomers containing three or more double bonds per molecule and addition polymers and copolymers of these compounds are disclosed.
Inventors
- 👤 E Kuehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:05
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08G18/672; C08G18/6725; C07; C07C; C07C275/00; C07C275/46; C07C275/58; C07C275/62; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F220/00; C08F220/02; C08F220/10; C08F220/34; C08F220/343; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
55 words
A POLYMERIZABLE URETHANE COMPOUND WHICH IS THE REACTION PRODUCT OF A. AN ORGANIC POLYISOCYANATE HAVING AT LEAST 3 ISOCYANATE GROUPS, AND B. A STOICHIOMETRIC QUANTITY OF A HYDROXYL TERMINATED ETHYLENICALLY UNSATURATED ESTER REACTION PRODUCT OF AN ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID HAVING FROM 3 TO 18 CARBON ATOMS AND AN ETHERIFIED DIPHENOL REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
55 words
A POLYMERIZABLE URETHANE COMPOUND WHICH IS THE REACTION PRODUCT OF A. AN ORGANIC POLYISOCYANATE HAVING AT LEAST 3 ISOCYANATE GROUPS, AND B. A STOICHIOMETRIC QUANTITY OF A HYDROXYL TERMINATED ETHYLENICALLY UNSATURATED ESTER REACTION PRODUCT OF AN ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID HAVING FROM 3 TO 18 CARBON ATOMS AND AN ETHERIFIED DIPHENOL REPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
11 words
A compound of claim 1 wherein (a) has 3 isocyanate groups.
Claim 4
Dependent Claim
20 words
A compound of claim 2 wherein (b) is the reaction product of oxyalkylated 4,4''-isopropylidenediphenol and an ethylenically unsaturated monocarboxylic acid.
Claim 5
Dependent Claim
33 words
A compound of claim 1 wherein (b) is a stoichiometric quantity of a hydroxyl terminated ethylenically unsaturated reaction product of acrylic acid or methacrylic acid and an etherified diphenol represented by the formula
Claim 6
Dependent Claim
13 words
A compound of claim 4 wherein the Etherified diphenol is an oxyalkylated 4,4''-isopropylidenediphenol.
Claim 7
Dependent Claim
12 words
A compound of claim 4 wherein the etherified diphenol is polyoxypropylene(2.2)-2,2-bis(4-hydroxyphenyl) propane.
Claim 8
Dependent Claim
33 words
A compound of claim 1 wherein the ethylenically unsaturated carboxylic acid is selected from the group consisting of sorbic acid, crotonic acid, ricinoleic acid, oleic acid, linolenic acid, linoleic acid, and eleostearic acid.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |