US3939128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanization of halogen or epoxy-containing polyacrylate elastomers
Assignee: Enichem Elastomeri SpA
•
Filing: 1973-07-11
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Granted: 1976-02-17
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Expires: 1993-07-11
Abstract
Abstract A vulcanization composition is provided which comprises a halogen- or epoxy-containing polyacrylate elastomer from about 0.05 to 2.5 parts of sulfur and from about 0.5 to 7 parts of either a sodium or potassium salt of 2-ethylhexanoic acid. In addition, an improved process for vulcanizing the elastomers is provided which comprises adding such sulfur and 2-ethylhexanoic acid salts to the polymer.
Inventors
- 👤 Rudolf Adolf Behrens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:20
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
45 words
A vulcanizable halogen or epoxy-containing polyacrylate elastomer composition comprising, for each 100 parts by weight of said elastomer, from about 0.05 to 2.5 parts of sulfur and from about 0.5 to 7 parts by weight of either the sodium or potassium salt of 2-ethylhexanoic acid.
Claim 2
Dependent Claim
45 words
A vulcanizable halogen or epoxy-containing polyacrylate elastomer composition comprising, for each 100 parts by weight of said elastomer, from about 0.05 to 2.5 parts of sulfur and from about 0.5 to 7 parts by weight of either the sodium or potassium salt of 2-ethylhexanoic acid.
Claim 3
Dependent Claim
14 words
A composition according to claim 1 wherein the elastomer is a halogen-containing acrylate polymer.
Claim 4
Dependent Claim
14 words
A composition according to claim 1 wherein the elastomer is an epoxy-containing polyacrylate elastomer.
Claim 5
Dependent Claim
15 words
A composition according to claim 1 wherein the 2-ethylhexanoic acid salt is the sodium salt.
Claim 6
Dependent Claim
15 words
A composition according to claim 1 wherein the 2-ethylhexanoic acid salt is the potassium salt.
Claim 7
Dependent Claim
32 words
A composition according to claim 1 wherein the elastomer is a copolymer of at least one lower alkyl acrylate, said alkyl having from about 1 to 8 carbon atoms and vinyl chloroacetate.
Claim 8
Dependent Claim
18 words
A composition according to claim 1 wherein the elastomer is a copolymer of ethyl acrylate and vinyl chloroacetate.
Claim 9
Dependent Claim
20 words
A composition according to claim 1 wherein the elastomer is a terpolymer of ethyl acrylate, butyl acrylate and vinyl chloroacetate.
Claim 10
Dependent Claim
21 words
A composition according to claim 1 wherein the elastomer is a copolymer of at least one alkylacrylate, an alkoxyalkylacrylate and vinylchloroacetate.
Claim 11
Dependent Claim
21 words
A composition according to claim 1 wherein the elastomer is a copolymer of ethylacrylate, butyl acrylate, methoxy- or ethoxyethylacrylate and vinylchloroacetate.
Claim 12
Dependent Claim
29 words
A composition according to claim 1 comprising from about 0.25 to 5 parts by weight, based on the weight of the elastomer, of an N-substituted mono- or bis maleimide.
Claim 13
Dependent Claim
13 words
A composition according to claim 11 wherein the N-substituted maleimide is phenylene 1,3-maleimide.
Claim 14
Dependent Claim
13 words
A composition according to claim 11 wherein the N-substituted maleimide is N-phenyl maleimide.
Claim 15
Dependent Claim
56 words
In a process for vulcanizing a halogen or epoxy-containing polyacrylate elastomer, the improvement which comprises adding to the elastomer prior to vulcanization from about 0.05 to 2.5 parts of sulfur and from about 0.5 to 7 parts of either a sodium or potassium salt of 2-ethylhexanoic acid based on 100 parts by weight of said elastomer.
Claim 16
Dependent Claim
56 words
In a process for vulcanizing a halogen or epoxy-containing polyacrylate elastomer, the improvement which comprises adding to the elastomer prior to vulcanization from about 0.05 to 2.5 parts of sulfur and from about 0.5 to 7 parts of either a sodium or potassium salt of 2-ethylhexanoic acid based on 100 parts by weight of said elastomer.
References Cited (Backward Citations)
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US3607847A
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US3450681A
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US3746674A
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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) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |