Patent US3905947A successfully refreshed from Google Patents.
US3905947A
Expired / Lapsed
US
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Organo-nickel salts as adhesion promotors for vulcanizable elastomers to metals
Assignee: Novartis Corp
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Filing: 1973-10-10
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Granted: 1975-09-16
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Expires: 1993-10-10
Abstract
Abstract Adhesion of metals to vulcanizable elastomers is promoted by a process of incorporating into the elastomer and organo-nickel salt and then vulcanizing the elastomeric composition while it is in contact with the metal surface.
Inventors
- 👤 George K Cowell
- 👤 David J Cherry
- 👤 William J Considine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:02
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/10; C08K; C08K5/00; C08K5/0091; C08K5/36; C08K5/37; C08K5/372; C08K5/49; C08K5/51; C08K5/53; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
88 words
A METHOD OF IMPROVING ADHESION BETWEEN A VULCANIZABLE ELASTOMERIC COMPOSITION AND A METAL SURFACE TO PROVIDE A STRONG AND DURABLE BOND, WHICH METHOD CONSISTS ESSENTIALLY OF A. ADDING TO A VULCANIZABLE ELASTOMERIC COMPOSITION FROM 0.05 PHR TO 10 PHR BY WEIGHT BASED ON THE WEIGHT OF THE ELASTOMER OF A COMPOUND OF THE GENERIC FORMULA (ORGANIC LIGAND) NICKEL(ANION) WHEREIN THE ORGANIC LIGAND IS REPRESENTED BY ONE OF THE FOLLOWING GENERIC FORMULAS AND THE ANION IS REPRESENTED BY ONE OF THE FOLLOWING GENERIC FORMULAS OR IS AN INORGANIC ANION:
Claim 2
Independent Claim
88 words
A METHOD OF IMPROVING ADHESION BETWEEN A VULCANIZABLE ELASTOMERIC COMPOSITION AND A METAL SURFACE TO PROVIDE A STRONG AND DURABLE BOND, WHICH METHOD CONSISTS ESSENTIALLY OF A. ADDING TO A VULCANIZABLE ELASTOMERIC COMPOSITION FROM 0.05 PHR TO 10 PHR BY WEIGHT BASED ON THE WEIGHT OF THE ELASTOMER OF A COMPOUND OF THE GENERIC FORMULA (ORGANIC LIGAND) NICKEL(ANION) WHEREIN THE ORGANIC LIGAND IS REPRESENTED BY ONE OF THE FOLLOWING GENERIC FORMULAS AND THE ANION IS REPRESENTED BY ONE OF THE FOLLOWING GENERIC FORMULAS OR IS AN INORGANIC ANION:
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein the vulcanizable elastomer is selected from natural rubber, styrene-butadiene copolymer, or ethylene-propylene terpolymer.
Claim 4
Dependent Claim
31 words
The method of claim 1 wherein the compound of formula I is present in an amount of from 0.1 to 5.0 phr by weight, based on the weight of the elastomer.
Claim 5
Dependent Claim
12 words
The method of claim 1 wherein the elastomeric composition contains carbon black.
Claim 6
Dependent Claim
11 words
The method of claim 1 wherein the vulcanizing agent is sulfur.
Claim 7
Dependent Claim
34 words
The method of claim 1 wherein the vulcanizable elastomer is natural rubber, styrene-butadiene copolymer, or ethylene-propylene terpolymer and the compound of formula I has the organic ligand and anion both represented by formula B.
Claim 8
Dependent Claim
24 words
The method of claim 6 wherein the vulcanizable elastomer is natural rubber or styrene-butadiene copolymer and the compound of formula I has the formula
Claim 9
Dependent Claim
24 words
The method of claim 6 wherein the vulcanizable elastomer is natural rubber or ethylene-propylene terpolymer and the compound of formula I has the formula
References Cited (Backward Citations)
US2643273A
Cited
US2912355A
Cited
US3310575A
Cited
US3189630A
Cited
US3488368A
Cited
US3497464A
Cited
US3723489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |