US4092455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of methylenebis- and thiobisnaphthols as promoters in tire cord adhesion to rubber
Assignee: Wyeth Holdings LLC
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Filing: 1976-03-08
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Granted: 1978-05-30
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Expires: 1996-03-08
Abstract
Abstract Vulcanizable rubber compositions providing excellent bonding of textile or metal reinforcing fibers thereto which comprises a rubber, a filler material, an N-(substituted oxymethyl)melamine and a compound selected from 1,1'-methylenebis(2-naphthol), 2,2'-methylenebis (1-naphthol), mixtures thereof, 1,1'-thiobis(2-naphthol), 2,2-thiobis(1-naphthol), 4,4'-methylenebis(1-naphthol), 4,4'-thiobis(1-naphthol) and mixtures thereof.
Inventors
- 👤 Frank George Pinto
- 👤 Earl Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:52
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/10; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34922; C08K5/36; B; B29; B29C; B29C66/00; B29C66/70; B29C66/72; B29C66/721; B29C66/7214; B29C66/72141; C08J2321/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
111 words
In a vulcanizable rubber composition comprising rubber, a filler material and an N-(substituted oxymethyl) melamine having the general formula: ##STR2## wherein X is hydrogen or lower (C 1 -C 8 ) alkyl; R, R 1 , R 2 , R 3 and R 4 are individually hydrogen, lower (C 1 -C 8 ) alkyl or the group -- CH 2 OX, X being as defined hereinabove, the improvement which comprises: incorporating into said rubber composition an effective adhesion promoting amount of a compound selected from (a) 1,1'-methylenebis(2-naphthol), (b) 2,2'-methylenebis (1-naphthol), (c) mixtures of (a) and (b), (d) 1,1'-thiobis(2-naphthol), (e) 2,2'-thiobis(1-naphthol), (f) mixtures of (d) and (e), (g) 4,4'-methylenebis(1-naphthol) and (h) 4,4'-thiobis(1-naphthol).
Claim 2
Dependent Claim
111 words
In a vulcanizable rubber composition comprising rubber, a filler material and an N-(substituted oxymethyl) melamine having the general formula: ##STR2## wherein X is hydrogen or lower (C 1 -C 8 ) alkyl; R, R 1 , R 2 , R 3 and R 4 are individually hydrogen, lower (C 1 -C 8 ) alkyl or the group -- CH 2 OX, X being as defined hereinabove, the improvement which comprises: incorporating into said rubber composition an effective adhesion promoting amount of a compound selected from (a) 1,1'-methylenebis(2-naphthol), (b) 2,2'-methylenebis (1-naphthol), (c) mixtures of (a) and (b), (d) 1,1'-thiobis(2-naphthol), (e) 2,2'-thiobis(1-naphthol), (f) mixtures of (d) and (e), (g) 4,4'-methylenebis(1-naphthol) and (h) 4,4'-thiobis(1-naphthol).
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein the N-(substituted oxymethyl) melamine is hexakis(methoxymethyl)melamine.
Claim 4
Dependent Claim
29 words
The composition of claim 1 wherein the N-(substituted oxymethyl) melamine is present in a concentration of from about 1 to 10 parts per hundred parts of the rubber therein.
Claim 5
Dependent Claim
20 words
The composition of claim 2 wherein the concentration of hexakis (methoxymethyl)melamine is 2 to 4 parts per hundred of rubber.
Claim 6
Dependent Claim
12 words
The composition of claim 1 wherein the adhesion promoting compound is 1,1'-methylenebis(2-naphthol).
Claim 7
Dependent Claim
11 words
The composition claim 1 wherein the adhesion promoting compound is 1,1'-thiobis(2-naphthol).
Claim 8
Dependent Claim
21 words
The composition of claim 5 wherein the concentration of 1,1'-methylenebis(2-naphthol) is from about 0.5 to 8 parts per hundred of rubber.
Claim 9
Dependent Claim
21 words
The composition of claim 6 wherein the concentration of 1,1'-thiobis(2-naphthol) is from about 0.5 to 8 parts per hundred of rubber.
Claim 10
Dependent Claim
17 words
The composition of claim 7 wherein the concentration is 1 to 3 parts per hundred of rubber.
Claim 11
Dependent Claim
17 words
The composition of claim 8 wherein the concentration is 1 to 3 parts per hundred of rubber.
Claim 12
Dependent Claim
35 words
The composition according to claim 1 wherein the rubber is selected from the group consisting of natural rubber, polybutadiene, polyisoprene, polychloroprene, butadiene/styrene copolymer rubbers, butadiene/acrylonitrile copolymer rubbers, ethylene-propylene diene modified terpolymer rubbers and blends thereof.
Claim 13
Dependent Claim
21 words
A vulcanized rubber article reinforced with a textile fiber or wire cord prepared from the vulcanizable rubber composition of claim 1.
Claim 14
Dependent Claim
23 words
The composition according to claim 1 comprising 2 to 14 parts of high surface area activated silica per hundred parts of the rubber.
Claim 15
Dependent Claim
9 words
The composition according to claim 1, comprising carbon black.
References Cited (Backward Citations)
US3212955A
Cited
US3361617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |