Patent US3989643A successfully refreshed from Google Patents.
US3989643A
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Rubber compound additive
Assignee: Technical Processing Inc
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Filing: 1974-08-28
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Granted: 1976-11-02
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Expires: 1994-08-28
Abstract
Abstract Improved rubber compounding is achieved by adding the zinc oxide and fatty acid conventionally employed as accelerator activators in the form of a zinc salt of the fatty acid dispersed in an alkylphenoxy polyglycol.
Inventors
- 👤 Erwin Aron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:17
CPC Classifications
C; C08; C08L; C08L21/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
79 words
A composition consisting essentially of a zinc salt of a fatty acid having from about 10 to about 20 carbon atoms dispersed throughout an alkylphenoxy polyglycol having the structural formula: wherein R is an alkyl group containing from about 8 to about 12 carbon atoms and x is a number having a value of from about 2 to about 10, wherein the concentration of said zinc salt in said composition is from about 50 to about 80 weight percent.
Claim 2
Dependent Claim
79 words
A composition consisting essentially of a zinc salt of a fatty acid having from about 10 to about 20 carbon atoms dispersed throughout an alkylphenoxy polyglycol having the structural formula: wherein R is an alkyl group containing from about 8 to about 12 carbon atoms and x is a number having a value of from about 2 to about 10, wherein the concentration of said zinc salt in said composition is from about 50 to about 80 weight percent.
Claim 3
Dependent Claim
44 words
The composition according to claim 1 wherein said zinc salt is a member selected from the group consisting of zinc stearate and zinc oleate and said alkylphenoxy polyglycol is a member selected from the group consisting of monononylphenoxy tetraethyleneglycol, monononylphenoxy heptaethyleneglycol and monododecylphenoxy hexaethyleneglycol.
Claim 4
Dependent Claim
17 words
A composition according to claim 1 consisting essentially of a mixture of zinc stearate and monononylphenoxy heptaethyleneglycol.
Claim 5
Dependent Claim
17 words
A composition according to claim 1 consisting essentially of a mixture of zinc oleate and monododecylphenoxy hexaethyleneglycol.
Claim 6
Dependent Claim
14 words
A composition according to claim 1 consisting essentially of zinc stearate and monononylphenoxy tetraethyleneglycol.
Claim 7
Dependent Claim
87 words
A method for producing the composition of claim 1 which comprises admixing zinc oxide, a fatty acid having from about 10 to about 20 carbon atoms and an alkylphenoxy polyglycol having the structural formula: wherein R is an alkyl group containing from about 8 to about 12 carbon atoms and x is a number having a value of from about 2 to about 10, under conditions sufficient to cause the zinc oxide to react with the fatty acid and form the zinc salt of the fatty acid.
References Cited (Backward Citations)
US3437621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |