US4076668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber composition
Assignee: Yokohama Rubber Co Ltd
•
Filing: 1976-02-27
•
Granted: 1978-02-28
•
Expires: 1996-02-27
Abstract
Abstract A rubber composition which comprises more than 0.5 wt parts of a cobalt salt of organic acid, more than 0.5 wt part of monohydroxybenzoic acid component and 100 wt parts of a rubber.
Inventors
- 👤 Kunihiro Kaneda
- 👤 Masashi Kida
- 👤 Akihiko Nakayama
- 👤 Atsushi Kanazawa
- 👤 Hiroyuki Kaido
- 👤 Yasuhiro Mizumoto
- 👤 Tsuneo Koyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:38
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/10; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08L; C08L21/00; C08L61/00; C08L61/04; C08L61/06; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
33 words
A rubber composition which comprises more than 0.5 wt. parts of a cobalt salt of organic acid, more than 0.5 wt. part of monohydroxybenzoic acid component and 100 wt. parts of a rubber.
Claim 2
Dependent Claim
33 words
A rubber composition which comprises more than 0.5 wt. parts of a cobalt salt of organic acid, more than 0.5 wt. part of monohydroxybenzoic acid component and 100 wt. parts of a rubber.
Claim 3
Dependent Claim
50 words
A rubber composition which comprises more than 0.5 wt. parts of a cobalt salt of organic acid, more than 0.5 wt. parts of monohydroxybenzoic acid component, more than 0.5 wt. part of at least one of an alkylphenol-type resin or a cresol-formaldehyde-type resin and 100 wt. parts of a rubber.
Claim 4
Dependent Claim
50 words
A rubber composition which comprises more than 0.5 wt. parts of a cobalt salt of organic acid, more than 0.5 wt. parts of monohydroxybenzoic acid component, more than 0.5 wt. part of at least one of an alkylphenol-type resin or a cresol-formaldehyde-type resin and 100 wt. parts of a rubber.
Claim 5
Dependent Claim
24 words
The rubber composition of claim 1, wherein said cobalt salt of organic acid is a cobalt salt of organic acid having 6-30 carbon atoms.
Claim 6
Dependent Claim
19 words
The rubber composition of claim 1, wherein said monohydroxybenzoic acid component is mononydroxybenzoic acid, or an alkyl ester thereof.
Claim 7
Dependent Claim
13 words
The rubber composition of claim 1, wherein said monohydroxybenzoic acid is para-mono-hydroxybenzoic acid.
Claim 8
Dependent Claim
19 words
The rubber composition of claim 1, wherein said rubber is natural rubber, styrene-butadiene rubber, polybutadiene rubber or polyisoprene rubber.
Claim 9
Dependent Claim
25 words
The rubber composition of claim 2, wherein said alkylphenol-type resins and cresol-formaldehyde-type resins are o-cresol-formaldehyde resin, p-cresol-formaldehyde resins, t-butylphenol-formaldehyde resins, p-octylphenol-formaldehyde-resins and modified phenol resins.
Claim 10
Dependent Claim
42 words
A vulcanized rubber product reinforced with tire cords which comprises a rubber composition comprising more than 0.5 wt. part of a cobalt salt of organic acid, more than 0.5 wt. part of monohydroxybenzoic acid component per 100 wt. parts of the rubber.
Claim 11
Dependent Claim
42 words
A vulcanized rubber product reinforced with tire cords which comprises a rubber composition comprising more than 0.5 wt. part of a cobalt salt of organic acid, more than 0.5 wt. part of monohydroxybenzoic acid component per 100 wt. parts of the rubber.
Claim 12
Dependent Claim
18 words
The vulcanized rubber product of claim 8, wherein steel tire cords are used for reinforcing the rubber product.
Claim 13
Dependent Claim
22 words
The vulcanized rubber product of claim 8, wherein a copper alloy coated steel tire cords are used for reinforcing the rubber product.
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) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |