Patent US4911218A successfully refreshed from Google Patents.
US4911218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl alcohol coating containing mica or glass for use on a rubber tire
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1989-03-13
•
Granted: 1990-03-27
•
Expires: 2009-03-13
Abstract
Abstract A composition comprised of polyvinyl alcohol coating and at least one water insoluble particulate organic or inorganic material having a plate like structure for use on at least one side of a rubber tire. Preferred particulate materials are flake mica and flake glass.
Inventors
- 👤 George P. Patitsas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:03
CPC Classifications
B; B60; B60C; B60C13/00; B60C13/002; B60C13/04; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C09; C09D; C09D129/00; C09D129/02; C09D129/04; C08J2321/00; C08J2429/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
88 words
A cured rubber tire having at least one of its surfaces coated with a composition which comprises polyvinylalcohol and at least one water insoluble particulate organic and/or inorganic material having a plate-like structure in a weight ratio of said material to the PVA in the coating in the range of about 1/6 to about 1/1 and where said plate-like structure material is an inorganic material having two substantially parallel opposing plate-like surfaces with an average width to thickness ratio in the range of about 5/1 to about 30/1.
Claim 2
Dependent Claim
88 words
A cured rubber tire having at least one of its surfaces coated with a composition which comprises polyvinylalcohol and at least one water insoluble particulate organic and/or inorganic material having a plate-like structure in a weight ratio of said material to the PVA in the coating in the range of about 1/6 to about 1/1 and where said plate-like structure material is an inorganic material having two substantially parallel opposing plate-like surfaces with an average width to thickness ratio in the range of about 5/1 to about 30/1.
Claim 3
Dependent Claim
23 words
The cured rubber tire of claim 1 where said plate-like material is selected from at least one of flake mica and flake glass.
Claim 4
Dependent Claim
39 words
The cured rubber tire of claim 1 where said polyvinylalcohol is a composition comprised of 100 parts by weight polyvinylalcohol and about 10 to about 30 parts by weight plasticizer comprised of at least one of glycerin and polyglycerol.
Claim 5
Dependent Claim
38 words
The cured rubber tire of claim 1 where said coated surface(s) is composed of a cured rubber containing a coloring pigment selected from at least one of titanium dioxide and zinc oxide in the absence of carbon black.
Claim 6
Dependent Claim
38 words
The cured rubber tire of claim 2 where said coated surface(s) is composed of a cured rubber containing a coloring pigment selected from at least one of titanium dioxide and zinc oxide in the absence of carbon black.
Claim 7
Dependent Claim
38 words
The cured rubber tire of claim 3 where said coated surface(s) is composed of a cured rubber containing a coloring pigment selected from at least one of titanium dioxide and zinc oxide in the absence of carbon black.
Claim 8
Dependent Claim
38 words
The cured rubber tire of claim 4 where said coated surface(s) is composed of a cured rubber containing a coloring pigment selected from at least one of titanium dioxide and zinc oxide in the absence of carbon black.
References Cited (Backward Citations)
US3114650A
Cited
US4480005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-26 | 1993-09-25 | 1994-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-26 | 1997-09-25 | 1998-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-26 | 2001-09-25 | 2002-03-27 | $7700.00 | Window Closed / Lapsed |