US4117240A
Expired / Lapsed
US
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Stabilized polymeric compositions
Assignee: Goodyear Tire and Rubber Co
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Filing: 1975-11-13
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Granted: 1978-09-26
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Expires: 1995-11-13
Abstract
Abstract Antioxidants such as 2-(3,5-di tert.butyl-4-hydroxybenzyloxy) ethyl acrylate and 2-(3,5-di tert.butyl-4-hydroxybenzyloxy) ethyl methacrylate, age resistant polymers having age resistors physically combined therewith and age resistant polymeric compositions prepared by emulsion free radical polymerization techniques involving the use of said age resistors as monomers.
Inventors
- 👤 Richard H. Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:53
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
244 words
A phenolic compound having the following structural formula: ##STR7## wherein R and R 1 are tertiary alkyl radicals having from 4 to 8 carbon atoms, wherein R 2 and R 3 are selected from the group consisting of hydrogen, alkyl radicals having from 1 to 12 carbon atoms, cycloalkyl radicals having from 5 to 12 carbon atoms, aralkyl radicals having from 7 to 13 carbon atoms and aryl radicals having from 6 to 12 carbon atoms, wherein R 4 is selected from the group consisting of alkyl radicals having from 1 to 12 carbon atoms, cycloalkyl radicals having from 5 to 12 carbon atoms and aralkyl radicals having from 7 to 13 carbon atoms, wherein R 5 is selected from the group consisting of hydrogen and alkyl radicals having from 1 to 4 carbon atoms and wherein R 6 is selected from the group consisting of hydrogen, alkyl radicals having from 1 to 4 carbon atoms, phenyl and substituted phenyl radicals, wherein x is an integer from 0 to 4, y is an integer from 0 to 11-x, wherein m is 0 or 1, n is an integer from 1 to 3, wherein A is selected from the group consisting of ##STR8## wherein R 7 and R 8 are selected from the group consisting of hydrogen, alkyl radicals having from 1 to 4 carbon atoms and aryl radicals having from 6 to 12 carbon atoms, wherein z is an integer from 0 to 10.
Claim 2
Dependent Claim
244 words
A phenolic compound having the following structural formula: ##STR7## wherein R and R 1 are tertiary alkyl radicals having from 4 to 8 carbon atoms, wherein R 2 and R 3 are selected from the group consisting of hydrogen, alkyl radicals having from 1 to 12 carbon atoms, cycloalkyl radicals having from 5 to 12 carbon atoms, aralkyl radicals having from 7 to 13 carbon atoms and aryl radicals having from 6 to 12 carbon atoms, wherein R 4 is selected from the group consisting of alkyl radicals having from 1 to 12 carbon atoms, cycloalkyl radicals having from 5 to 12 carbon atoms and aralkyl radicals having from 7 to 13 carbon atoms, wherein R 5 is selected from the group consisting of hydrogen and alkyl radicals having from 1 to 4 carbon atoms and wherein R 6 is selected from the group consisting of hydrogen, alkyl radicals having from 1 to 4 carbon atoms, phenyl and substituted phenyl radicals, wherein x is an integer from 0 to 4, y is an integer from 0 to 11-x, wherein m is 0 or 1, n is an integer from 1 to 3, wherein A is selected from the group consisting of ##STR8## wherein R 7 and R 8 are selected from the group consisting of hydrogen, alkyl radicals having from 1 to 4 carbon atoms and aryl radicals having from 6 to 12 carbon atoms, wherein z is an integer from 0 to 10.
Claim 3
Dependent Claim
146 words
The compound according to claim 1 wherein R 2 is selected from the group consisting of hydrogen, alkyl radicals having 1 to 12 carbon atoms, an unsubstituted phenyl radical and a substituted phenyl radical having from 6 to 12 carbon atoms, R 3 is selected from the group consisting of hydrogen, alkyl radicals having from 1 to 4 carbon atoms, an unsubstituted phenyl radical and a substituted phenyl radical having from 6 to 12 carbon atoms, R 4 is selected from the group consisting of hydrogen and methyl, x is 0 or 1, y is 0 to 3, x plus y is 0 to 4, R 5 is selected from the group consisting of hydrogen and methyl and R 6 is selected from the group consisting of hydrogen, and phenyl and R 7 and R 8 are selected from the group consisting of hydrogen and methyl.
Claim 4
Dependent Claim
41 words
The compound according to claim 2 wherein R 2 , R 3 and R 4 are selected from the group consisting of hydrogen and methyl, A is selected from the group consisting of ##STR9## z is 0 and n is 1.
Claim 5
Dependent Claim
15 words
The compound according to claim 3 wherein R and R 1 are tertiary butyl radicals.
Claim 6
Dependent Claim
13 words
The compound of claim 1 wherein the compound is 2-(3,5-di.tert. butyl-4-hydroxybenzyloxy) ethyl methacrylate.
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) | 1981-09-25 | 1982-03-27 | 1982-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-25 | 1986-03-27 | 1986-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-25 | 1990-03-27 | 1990-09-26 | $7700.00 | Window Closed / Lapsed |