Patent US3881537A successfully refreshed from Google Patents.
US3881537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lining agent for a tubeless pneumatic tire
Assignee: Individual
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Filing: 1974-02-05
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Granted: 1975-05-06
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Expires: 1994-02-05
Abstract
Abstract A fluid lining agent for a tubeless pneumatic tire including rubber particles having a particle size of about 50 to 1,200 microns dispersed in an aqueous dispersion of an adhesive, preferably polyvinyl acetate, a polyacrylic acid ester such as polymethyl acrylate, butadieneacrylonitrile rubber, polychloroprene or a copolymer of chloroprene. Advantageously, the aqueous dispersion of the adhesive includes 18 to 54 parts by weight of water to 100 parts by weight of adhesive while the rubber particles are present in an amount of about 5 to 20 percent by weight based on the weight of the aqueous dispersion of the adhesive. The preferred viscosity of the tire lining agent is about 230 to 1,350 cps at 21*C. Also disclosed is a method of preventing the puncture of a pneumatic tire by introducing the fluid tire lining agent into the interior of the tire.
Inventors
- 👤 Teruhiko Miyazato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:52
CPC Classifications
B; B60; B60C; B60C1/00; B60C1/0008; B29; B29C; B29C73/00; B29C73/16; B29C73/163; B29C73/18; B29C73/20; B29D; B29D30/00; B29D30/06; B29D30/0681; B29D30/0685; B60C19/00; B60C19/12; B60C19/122; B29D2030/0686; B29D2030/0697; B29L; B29L2030/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10666; Y10T152/10675; Y10T152/10684
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
136 words
A SELF SEALING TUBLESS PNEUMATIC TIRE COMPRISING A TUBELESS PNEUMATIC TIRE AND A FLUID TIRE LINING AGENT DISPOSED IN THE INTERIOR THEREOF, SAID TIRE LINING AGENT INCLUDING: A. AN ADHESIVE CONSISTING ESSENTIALLY OF AN AQUEOUS EMULSION OF POLYVINYL ACETATE, POLYACRYLIC ACID ESTER, BUTADIENEACRYLONITEILE RUBBER, POLYCHLOROPRENE OR POLYCHLOROPRENE COPOLYMER, SAID AQUEOUS EMULSION BEING I. DISPERSIBLE IN WATER; AND II. ADHESIVE TO FINELY DIVIDED PARTICULATE SOLID RUBBER PARTICLES, 100 PARTS OF SAID AQUEOUS EMULSION BEING PRESENT PER 18 TO 54 PARTS OF WATER; AND B. FINELY DIVIDED PARTICULATE SOLID RUBBER PARTICLES INTIMATELY DISPERSED IN SAID AQUEOUS DISPERSION, SAID FINELY DIVIDED PARTICULATE SOLID RUBBER PARTICLES HAVING A PARTICLE SIZE OF FROM ABOUT 50 TO 1,200 MICRONS AND BEING PRESENT IN AN AMOUNT SUFFICIENT TO SEAL A SMALL PUNCTURE HOLE IN SAID VEHICLE TIRE, SAID FINELY DIVIDED PARTICULATE RUBBER PARTI-
Claim 2
Dependent Claim
136 words
A SELF SEALING TUBLESS PNEUMATIC TIRE COMPRISING A TUBELESS PNEUMATIC TIRE AND A FLUID TIRE LINING AGENT DISPOSED IN THE INTERIOR THEREOF, SAID TIRE LINING AGENT INCLUDING: A. AN ADHESIVE CONSISTING ESSENTIALLY OF AN AQUEOUS EMULSION OF POLYVINYL ACETATE, POLYACRYLIC ACID ESTER, BUTADIENEACRYLONITEILE RUBBER, POLYCHLOROPRENE OR POLYCHLOROPRENE COPOLYMER, SAID AQUEOUS EMULSION BEING I. DISPERSIBLE IN WATER; AND II. ADHESIVE TO FINELY DIVIDED PARTICULATE SOLID RUBBER PARTICLES, 100 PARTS OF SAID AQUEOUS EMULSION BEING PRESENT PER 18 TO 54 PARTS OF WATER; AND B. FINELY DIVIDED PARTICULATE SOLID RUBBER PARTICLES INTIMATELY DISPERSED IN SAID AQUEOUS DISPERSION, SAID FINELY DIVIDED PARTICULATE SOLID RUBBER PARTICLES HAVING A PARTICLE SIZE OF FROM ABOUT 50 TO 1,200 MICRONS AND BEING PRESENT IN AN AMOUNT SUFFICIENT TO SEAL A SMALL PUNCTURE HOLE IN SAID VEHICLE TIRE, SAID FINELY DIVIDED PARTICULATE RUBBER PARTI-
Claim 3
Dependent Claim
31 words
A self-scaling tubeless pneumatic tire according to claim 1 wherein said rubber particles are present in an amount of about 5 to 20 percent by weight based on said aqueous dispersion.
Claim 4
Dependent Claim
31 words
A self-sealing tubeless pneumatic tire according to claim 2 wherein said rubber particles are prEsent in an amount of about 7 to 18 percent by weight based on said aqueous dispersion.
Claim 5
Dependent Claim
23 words
A self-sealing tubeless pneumatic tire according to claim 1 wherein said agent exhibits a viscosity of about 230 to 1,350 cps at 21*C.
Claim 6
Dependent Claim
17 words
A self-sealing tubeless pneumatic tire according to claim 1 wherein said polyacrylic acid ester is polymethyl acrylate.
Claim 7
Dependent Claim
36 words
A self-sealing tubeless pneumatic tire according to claim 1 further comprising an anionic or nonionic surface active agent of a type and an amount sufficient to facilitate the dispersion of said adhesive and said rubber particles.
Claim 8
Dependent Claim
41 words
A self-sealing tubeless pneumatic tire according to claim 6 wherein said surface active agent is present in an amount of about 0.1 to 1 percent by weight based on the aqueous dispersion of the adhesive with the rubber particles dispersed therein.
Claim 9
Dependent Claim
41 words
A self-sealing tubeless pneumatic tire according to claim 7 wherein said surface active agent is present in an amount of about 0.2 to 0.5 percent by weight based on the aqueous dispersion of the adhesive with the rubber particles dispersed therein.
Claim 10
Dependent Claim
21 words
A self-sealing tubeless pneumatic tire according to claim 6 wherein said surface active agent is sodium dodecylbenzenesulfonate or polyoxyethylene lauryl ether.
Claim 11
Dependent Claim
14 words
A self-sealing tubeless pneumatic tire according to claim 1 further comprising an anti-freezing agent.
Claim 12
Dependent Claim
32 words
A self-scaling tubeless pneumatic tire according to claim 10 wherein said anti-freezing agent is present in an amount sufficient to lower the freezing point of said tire lining agent to about -20*C.
Claim 13
Dependent Claim
30 words
A self-sealing tubeless pneumatic tire according to claim 10 wherein said anti-freezing agent is present in an amount of about 0.5 to 1.5 percent by weight based on the adhesive.
Claim 14
Dependent Claim
19 words
A self-sealing tubeless pneumatic tire according to claim 10 wherein said anti-freezing agent is ethylene glycol or diethylene glycol.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |