US3714122A
Expired / Lapsed
US
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Antioxidants and age resistant polymeric compositions
Assignee: Goodyear Tire and Rubber Co
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Filing: 1970-07-20
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Granted: 1973-01-30
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Expires: 1990-07-20
Abstract
Abstract Antioxidants such as 3,5-di tert.butyl-4-hydroxycinnamonitrile and ethyl 3,5-di tert.hexyl-4-hydroxycinnamate, age resistant polymers having monomeric age resistors physically combined therewith and age resistant polymeric compositions prepared by free radical polymerization techniques involving the use of said antioxidants as monomers.
Inventors
- 👤 R Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:19
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C07; C07C; C07C45/00; C07C45/42; C07C45/43; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/74; C08F220/00; C08F220/02; C08F220/10; C08F220/26; C08F246/00; C08K; C08K5/00; C08K5/04; C08K5/13
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
109 words
A process of preparing an age resistant polymeric composition comprising polymerizing in a free radical, emulsion, polymerization system, a monomer system containing at least one phenolic monomer having the following structural formula: wherein R and R1 are tertiary alkyl groups having four to eight carbon atoms and wherein X is a radical selected from the group consisting of wherein R2, R3, R4 and R5 are selected from the group consisting of hydrogen and alkyl groups having from one to four carbon atoms and wherein the monomer system contains at least 50 parts by weight per 100 parts by weight of total monomer of at least on conjugated 1,3-diene monomer.
Claim 2
Dependent Claim
109 words
A process of preparing an age resistant polymeric composition comprising polymerizing in a free radical, emulsion, polymerization system, a monomer system containing at least one phenolic monomer having the following structural formula: wherein R and R1 are tertiary alkyl groups having four to eight carbon atoms and wherein X is a radical selected from the group consisting of wherein R2, R3, R4 and R5 are selected from the group consisting of hydrogen and alkyl groups having from one to four carbon atoms and wherein the monomer system contains at least 50 parts by weight per 100 parts by weight of total monomer of at least on conjugated 1,3-diene monomer.
Claim 3
Dependent Claim
71 words
The process according to claim 1 wherein the monomer system is comprised of from 50 to 99.9 parts of at least one diene monomer, 0 to 49.9 parts of at least one compound selected from that group consisting of vinyl monomers and vinylidene monomers and 0.10 to 5.0 parts by weight of at least one monomeric age resistor, all parts being by weight per 100 parts by weight of total monomer.
Claim 4
Dependent Claim
58 words
The process according to claim 2 wherein X is a radical selected from the group consisting of wherein R2 and R3 are selected from the group consisting of methyl and ethyl radicals and wherein R4 and R5 are selected from the group consisting of hydrogen and methyl radicals and wherein the diene monomer is a conjugated diene monomer.
Claim 5
Dependent Claim
14 words
The process according to claim 3 wherein R and R1 are tertiary butyl radicals.
Claim 6
Dependent Claim
49 words
The process according to claim 1 wherein the emulsion free radical polymerization system contains an initiator system comprised of at least one initiator selected from the group consisting of aralkyl peroxides, aliphatic peroxides, aromatic acyl peroxides, perester peroxides, aralkyl hydroperoxides, aliphatic hydroperoxides, persulfate initiators, perborate initiators and perphosphate initiators.
Claim 7
Dependent Claim
23 words
The process according to claim 1 wherein the emulsion free radical polymerization system contains an initiator system comprised of a reduction/oxidation initiator system.
Claim 8
Dependent Claim
29 words
A polymer containing segmeric units, at least a portion of said units being comprised of at least one of the age resistant segmeric entities having the following structural formula:
Claim 9
Dependent Claim
29 words
A polymer containing segmeric units, at least a portion of said units being comprised of at least one of the age resistant segmeric entities having the following structural formula:
Claim 10
Dependent Claim
26 words
The polymer according to claim 7 wherein the segmeric entity comprises 0.10 part to 10.0 parts by weight per 100 parts by weight of the polymer.
Claim 11
Dependent Claim
12 words
The polymer according to claim 7 wherein the polymer is a solid.
Claim 12
Dependent Claim
24 words
The polymer according to claim 9 wherein the polymer contains at least 50 percent by weight of at least one segmeric form of 1,3-butadiene.
Claim 13
Dependent Claim
74 words
The polymer according to claim 7 wherein the polymer contains 50 to 99.9 parts by weight of the segmeric form of at least one diene monomer, 0 to 49.9 parts by weight of at least one compound selected from the group consisting of vinyl monomers and vinylidene monomers and 0.10 to 5.0 parts by weight of at least one monomeric age resister, all parts being by weight per 100 parts by weight of polymer.
Claim 14
Dependent Claim
20 words
The polymer according to claim 9 wherein the polymer possesses a number average molecular weight of from 60,000 to 500,000.
Claim 15
Dependent Claim
30 words
The polymer according to claim 9 wherein the polymer possesses a number average molecular weight of at least 60,000 and has a macro gel content of less than 50 percent.
Claim 16
Dependent Claim
48 words
The polymer according to claim 9 wherein X is a radical selected from the group consisting of wherein R2 and R3 are selected from the group consisting of methyl and ethyl radicals and wherein R4 and R5 are selected from the group consisting of hydrogen and methyl radicals.
Claim 17
Dependent Claim
14 words
The product according to claim 14 wherein R and R1 are tertiary butyl radicals.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |