US4099981A
Expired / Lapsed
US
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Sulfur containing silane coupling agents
Assignee: OSI Specialties Inc
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Filing: 1977-05-19
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Granted: 1978-07-11
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Expires: 1997-05-19
Abstract
Abstract Polysulfide aryl silanes, mercapto aryl silanes, the hydrolyzates and condensates thereof, a process for the manufacture of said silanes, and their use as coupling agents in vulcanized rubber compounds.
Inventors
- 👤 Jeffrey Yick-Pui Mui
- 👤 Arthur Noah Pines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:28
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/548; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/18; C07F7/1804; C07F7/1896; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/28; C08L; C08L11/00; C08L21/00; C08L81/00; C08L81/04; C08L83/00; C08L83/04; C08L83/08; C08L9/00; C08L9/02; C08L9/06; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
182 words
An inorganic mineral filler treated with a polysulfide aryl silane coupling agent having the average formula ##STR26## wherein X is a hydrolyzable group selected from the class consisting of halogen, alkoxy, and acyloxy radicals; R' is an alkyl radical containing from 1 to 4 carbon atoms; y has a value of 0 to 2 inclusive; R is a divalent bridging group selected from the class consisting of alkylene and alkyleneoxy radicals containing from 1 to 7 carbon atoms; n has a value of 0 or 1; Ar is an aryl radical containing from 6 to 12 carbon atoms; (S) x is a divalent polysulfide radical each free valence thereof being directly bonded to an aromatic carbon atom of an Ar radical whereby each Ar radical is bonded to another Ar radical through a (S) x radical, x has a value of from 2 to 6; a has a value of at least 2; b has a value of at least 1; and wherein the ratio of a to b is a value ranging from 0.4 to 2; and hydrolyzates and condensates thereof.
Claim 2
Dependent Claim
182 words
An inorganic mineral filler treated with a polysulfide aryl silane coupling agent having the average formula ##STR26## wherein X is a hydrolyzable group selected from the class consisting of halogen, alkoxy, and acyloxy radicals; R' is an alkyl radical containing from 1 to 4 carbon atoms; y has a value of 0 to 2 inclusive; R is a divalent bridging group selected from the class consisting of alkylene and alkyleneoxy radicals containing from 1 to 7 carbon atoms; n has a value of 0 or 1; Ar is an aryl radical containing from 6 to 12 carbon atoms; (S) x is a divalent polysulfide radical each free valence thereof being directly bonded to an aromatic carbon atom of an Ar radical whereby each Ar radical is bonded to another Ar radical through a (S) x radical, x has a value of from 2 to 6; a has a value of at least 2; b has a value of at least 1; and wherein the ratio of a to b is a value ranging from 0.4 to 2; and hydrolyzates and condensates thereof.
Claim 3
Dependent Claim
21 words
An inorganic mineral filler as defined in claim 1 wherein the inorganic mineral filler is a siliceous or a silicate material.
Claim 4
Dependent Claim
24 words
An inorganic mineral filler as defined in claim 1, wherein the ratio of a to b is a value of from 0.6 to 2.
Claim 5
Dependent Claim
17 words
An inorganic mineral filler as defined in claim 1, wherein a is 2 and b is 1.
Claim 6
Dependent Claim
24 words
An inorganic mineral filler as defined in claim 2, wherein the ratio of a to b is a value ranging from 0.6 to 2.
Claim 7
Dependent Claim
41 words
An inorganic mineral filler as defined in claim 5, wherein X is selected from the group consisting of methoxy and ethoxy radicals; y is 0; n is 0 and Ar is selected from the group consisting of phenyl and tolyl radicals.
Claim 8
Dependent Claim
50 words
An inorganic mineral filler as defined in claim 5, wherein X is selected from the group consisting of methoxy and ethoxy radicals; y is 0; n is 1; R is a --C 2 H 4 -- radical and Ar is selected from the group consisting of phenyl and tolyl radicals.
Claim 9
Dependent Claim
17 words
An inorganic mineral filler as defined in claim 5, wherein a is 2 and b is 1.
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) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |