Patent US4857397A successfully refreshed from Google Patents.
US4857397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire coating composition and use for curing tires
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1988-04-08
•
Granted: 1989-08-15
•
Expires: 2008-04-08
Abstract
Abstract Tire coating composition (non-wax) composed of a rubber selected from polybutadiene and/or styrene/butadiene copolymer, carbon black having a large particle size and, preferably, a non-ionic surfactant and use thereof for curing tires. Optionally, the composition can also contain at least one of mica and talc.
Inventors
- 👤 Syed K. Mowdood
- 👤 Bharat K. Kansupada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:56
CPC Classifications
C; C09; C09D; C09D109/00; B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/62; B29D; B29D30/00; B29D30/0005; C08; C08K; C08K3/00; C08K3/02; C08K3/04; B29L; B29L2030/00; C08K3/34; C08K3/346; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/251; Y10T428/254; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31917; Y10T428/31924
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
61 words
An uncured rubber tire having on its outer surface a coating composition which comprises (a) 100 parts by weight of at least one rubber selected from polybutadiene rubber and styrene/butadiene copolymer rubber; (b) about 300 to about 1000 parts by weight of carbon black characterized by having a particle size in the range of about 50 to about 100 nanometers (nm).
Claim 2
Dependent Claim
61 words
An uncured rubber tire having on its outer surface a coating composition which comprises (a) 100 parts by weight of at least one rubber selected from polybutadiene rubber and styrene/butadiene copolymer rubber; (b) about 300 to about 1000 parts by weight of carbon black characterized by having a particle size in the range of about 50 to about 100 nanometers (nm).
Claim 3
Dependent Claim
25 words
The tire of claim 1 wherein said composition contains in the range of about 1 to about 30 parts by weight of a non-ionic surfactant.
Claim 4
Dependent Claim
16 words
The tire of claim 1 wherein said composition contains at least one of mica and talc.
Claim 5
Dependent Claim
14 words
The tire of claim 1 where the rubber of said coating composition is polybutadiene.
Claim 6
Dependent Claim
13 words
The tire of claim 2 where the rubber of said composition comprises polybutadiene.
Claim 7
Dependent Claim
16 words
The tire of claim 2 wherein said composition contains at least one of mica and talc.
Claim 8
Dependent Claim
13 words
The tire of claim 6 where the rubber of said composition comprises polybutadiene.
Claim 9
Dependent Claim
14 words
The tire of claim 3 where the rubber of said coating composition comprises polybutadiene.
Claim 10
Dependent Claim
21 words
The tire of claim 1 where said coating contains about 500 to about 1000 parts by weight of said carbon black.
Claim 11
Dependent Claim
23 words
The vulcanized tire of claim 3 where said coating is autogeneously cured to at least one rubber surface of the tire during vulcanization.
Claim 12
Dependent Claim
23 words
The vulcanized tire of claim 2 where said coating is autogeneously cured to at least one rubber surface of the tire during vulcanization.
Claim 13
Dependent Claim
23 words
The vulcanized tire of claim 3 where said coating is autogeneously cured to at least one rubber surface of the tire during vulcanization.
Claim 14
Dependent Claim
23 words
The vulcanized tire of claim 4 where said coating is autogeneously cured to at least one rubber surface of the tire during vulcanization.
Claim 15
Dependent Claim
23 words
The vulcanized tire of claim 5 where said coating is autogeneously cured to at least one rubber surface of the tire during vulcanization.
Claim 16
Dependent Claim
23 words
The vulcanized tire of claim 6 where the coating is autogeneously cured to at least one rubber surface of the tire during vulcanization.
Claim 17
Dependent Claim
23 words
The vulcanized tire of claim 7 where said coating is autogeneously cured to at least one rubber surface of the tire during vulcanization.
Claim 18
Dependent Claim
23 words
The vulcanized tire of claim 8 where said coating is autogeneously cured to at least one rubber surface of the tire during vulcanization.
Claim 19
Dependent Claim
23 words
The vulcanized tire of claim 9 where said coating is autogeneously cured to at least one rubber surface of the tire during vulcanization.
References Cited (Backward Citations)
US4072645A
Cited
US4329265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-14 | 1993-02-13 | 1993-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-14 | 1997-02-13 | 1997-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-14 | 2001-02-13 | 2001-08-15 | $7700.00 | Window Closed / Lapsed |