US4452939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of high molecular weight polymeric antidegradants
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1983-02-28
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Granted: 1984-06-05
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Expires: 2003-02-28
Abstract
Abstract There is disclosed a process for the modification of a chloromethylated latex wherein said latex contains a surfactant of a nonionic or ionic-type comprising contacting said latex with an aqueous alkali solution and an alkali ionizable molecule containing antidegradant properties at a reaction temperature below 100 DEG C. and in the presence of a nitrogen atmosphere.
Inventors
- 👤 Dane K. Parker
- 👤 Donald J. Burlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:33
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08F236/06; C08C; C08C19/00; C08C19/30; C08C19/32
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
109 words
A process for the modification of a halomethylated polymer latex wherein said latex comprises (a) 0 to 39.9 parts by weight of styrene, (b) 60 to 99.9 parts by weight of butadiene, (c) 0.1 to 40 parts by weight of vinylbenzyl chloride, (d) a surfactant wherein said surfactant is of the nonionic or ionic-type; comprising contacting said latex with an aqueous alkaline solution and an alkali ionizable molecule containing antidegradant properties selected from the group consisting of chain-breaking antidegradants, peroxide decomposing antidegradants, ultraviolet screening antidegradants, triplet quenching antidegradants and metal deactivation antidegradants at a reaction temperature not to exceed 100° C. and in the presence of a nitrogen atmosphere.
Claim 2
Dependent Claim
109 words
A process for the modification of a halomethylated polymer latex wherein said latex comprises (a) 0 to 39.9 parts by weight of styrene, (b) 60 to 99.9 parts by weight of butadiene, (c) 0.1 to 40 parts by weight of vinylbenzyl chloride, (d) a surfactant wherein said surfactant is of the nonionic or ionic-type; comprising contacting said latex with an aqueous alkaline solution and an alkali ionizable molecule containing antidegradant properties selected from the group consisting of chain-breaking antidegradants, peroxide decomposing antidegradants, ultraviolet screening antidegradants, triplet quenching antidegradants and metal deactivation antidegradants at a reaction temperature not to exceed 100° C. and in the presence of a nitrogen atmosphere.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein said alkali ionizable molecule containing antidegradant properties is a chain-breaking antioxidant.
Claim 4
Dependent Claim
11 words
The process of claim 2 wherein said chain-breaking antioxidant is 2,6-di-t-butyl-mercaptophenol.
Claim 5
Dependent Claim
13 words
The process of claim 2 wherein said chain-breaking antioxidant is 4 mercaptoacetamido diphenylamine.
Claim 6
Dependent Claim
13 words
The process of claim 2 wherein said chain breaking antioxidant is 4 mercaptophenol.
Claim 7
Dependent Claim
13 words
The process of claim 2 wherein said chain-breaking antioxidant is 4 mercaptopropionamido diphenylamine.
Claim 8
Dependent Claim
13 words
The process of claim 3 wherein said nonionic surfactant is nonylphenoxy poly(ethyleneoxy) ethanol.
Claim 9
Dependent Claim
84 words
A process for the modification of an elastomeric latex composition which contains from 0.1 to 40 parts by weight vinylbenzyl chloride and a surfactant of a non-ionic or ionic type, said process comprising contacting said latex with an aqueous alkali solution and an alkali ionizable molecule containing antidegradant properties selected from the group consisting of chain-breaking antidegradants, peroxide decomposing antidegradants, ultraviolet screening antidegradants, triplet quenching antidegradants and metal de-activation antidegradants at a temperature below 100° C. and in the presence of a nitrogen atmosphere.
Claim 10
Dependent Claim
84 words
A process for the modification of an elastomeric latex composition which contains from 0.1 to 40 parts by weight vinylbenzyl chloride and a surfactant of a non-ionic or ionic type, said process comprising contacting said latex with an aqueous alkali solution and an alkali ionizable molecule containing antidegradant properties selected from the group consisting of chain-breaking antidegradants, peroxide decomposing antidegradants, ultraviolet screening antidegradants, triplet quenching antidegradants and metal de-activation antidegradants at a temperature below 100° C. and in the presence of a nitrogen atmosphere.
Claim 11
Dependent Claim
14 words
The process of claim 8 wherein said aqueous alkaline solution is aqueous sodium hydroxide.
Claim 12
Dependent Claim
14 words
The process of claim 8 wherein said aqueous alkaline solution is aqueous potassium hydroxide.
Claim 13
Dependent Claim
15 words
The process of claim 8 wherein said reaction temperature is from 50° to 70° C.
Claim 14
Dependent Claim
111 words
A polymeric latex prepared by a process comprising the steps of contacting a elastomeric latex composition which contains from 0.1 to 40 parts by weight vinylbenzyl chloride polymer latex wherein said latex comprises (1) 0 to 39.9 parts by weight of styrene, (2) 60 to 99.9 parts by weight of butadiene, (3) 0.1 to 40 parts by weight of a monomer having a vinyl group and a chloro-benzyl group, (4) a surfactant wherein said surfactant is of the nonionic or ionic type; with an aqueous alkaline solution and an alkali ionizable molecule containing antidegradant properties at a temperature not to exceed 100° C. and in the presence of a nitrogen atmosphere.
Claim 15
Dependent Claim
111 words
A polymeric latex prepared by a process comprising the steps of contacting a elastomeric latex composition which contains from 0.1 to 40 parts by weight vinylbenzyl chloride polymer latex wherein said latex comprises (1) 0 to 39.9 parts by weight of styrene, (2) 60 to 99.9 parts by weight of butadiene, (3) 0.1 to 40 parts by weight of a monomer having a vinyl group and a chloro-benzyl group, (4) a surfactant wherein said surfactant is of the nonionic or ionic type; with an aqueous alkaline solution and an alkali ionizable molecule containing antidegradant properties at a temperature not to exceed 100° C. and in the presence of a nitrogen atmosphere.
Claim 16
Dependent Claim
17 words
The latex of claim 12 wherein said alkali ionizable molecule containing antidegradant properties is a chain-breaking antidegradant.
Claim 17
Dependent Claim
11 words
The latex of claim 13 wherein said chain-breaking antioxidant is 2,6-di-t-butyl-mercaptophenol.
Claim 18
Dependent Claim
14 words
The latex of claim 13 wherein said chain breaking antioxidant is 4 mercaptoacetamido diphenylamine.
Claim 19
Dependent Claim
12 words
The latex of claim 13 wherein said chain-breaking antioxidant is 4 mercaptophenol.
Claim 20
Dependent Claim
13 words
The latex of claim 13 wherein said chain-breaking antioxidant is 4 mercaptopropionamido diphenylamine.
Claim 21
Dependent Claim
13 words
The latex of claim 17 wherein said nonionic surfactant is nonylphenoxy poly(ethyleneoxy) ethanol.
Claim 22
Dependent Claim
14 words
The latex of claim 12 wherein said aqueous alkaline solution is aqueous sodium hydroxide.
Claim 23
Dependent Claim
14 words
The latex of claim 12 wherein said aqueous alkaline solution is aqueous potassium hydroxide.
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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) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |