US6012498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tires having belts of high modulus composites
Assignee: Bridgestone Corp
•
Filing: 1998-04-08
•
Granted: 2000-01-11
•
Expires: 2018-04-08
Abstract
Abstract Composites of high melting point thermoplastics such as polyphenylene sulfide or polyimide and high modulus fibers such as carbon, graphite, or boron can be bonded to rubber using a primer such as a metal primer. The composite desirably has a modulus of elasticity of at least 750,000 psi and can be used as a belt in a no-flat tire.
Inventors
- 👤 Russell W. Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:53
CPC Classifications
B; B60; B60C; B60C17/00; B32; B32B; B32B25/00; B32B25/04; B60C9/00; B60C9/18; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10135; Y10T152/10171; Y10T152/1018; Y10T152/10495; Y10T152/10765; Y10T152/10774; Y10T152/1081; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2913; Y10T428/2918; Y10T428/292; Y10T428/31504; Y10T428/31826
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
95 words
A pneumatic tire, comprising; a carcass, sidewalls, tire beads, and a tire tread, said tire having at least one high modulus puncture resistant composite belt having a modulus of elasticity of at least 750,000 psi thereby rendering said tire essentially flat free, said at least one high modulus puncture resistant composite belt comprising a thermoplastic binder having a melting point of at least 225° C. and a reinforcing fiber, the amount of said fiber being from about 40 parts to about 90 parts by weight for every 100 parts by weight of said thermoplastic binder.
Claim 2
Dependent Claim
95 words
A pneumatic tire, comprising; a carcass, sidewalls, tire beads, and a tire tread, said tire having at least one high modulus puncture resistant composite belt having a modulus of elasticity of at least 750,000 psi thereby rendering said tire essentially flat free, said at least one high modulus puncture resistant composite belt comprising a thermoplastic binder having a melting point of at least 225° C. and a reinforcing fiber, the amount of said fiber being from about 40 parts to about 90 parts by weight for every 100 parts by weight of said thermoplastic binder.
Claim 3
Dependent Claim
47 words
A pneumatic tire according to claim 1, wherein said binder is polyphenylene sulfide, polyimide, polyurethane, or polyurea, or combinations thereof, and wherein said fiber is a carbon fiber, a glass fiber, a boron fiber, a nylon fiber, a polyester fiber, or a graphite fiber, or combinations thereof.
Claim 4
Dependent Claim
65 words
A pneumatic tire according to claim 2, wherein said melting point of said thermoplastic binder is at least 275° C., wherein said thermoplastic binder is said polyphenylene sulfide, said polyimide, or combinations thereof, and wherein said fiber is said carbon fiber, said graphite fiber, or combinations thereof, and wherein the amount of said fiber is from about 50 parts to about 85 parts by weight.
Claim 5
Dependent Claim
28 words
A pneumatic tire according to claim 3, wherein said modulus of elasticity of said at least one high modulus puncture resistant composite belt is at least 1,000,000 psi.
References Cited (Backward Citations)
US4111249A
Cited
US4318434A
Cited
US4708186A
Cited
US4711286A
Cited
US4734144A
Cited
US5201971A
Cited
US5082713A
Cited
US5291930A
Cited
US5413160A
Cited
US5323829A
Cited
US5558144A
Cited
US5513683A
Cited
US5576104A
Cited
US5879484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-01-10 | 2003-07-12 | 2004-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-10 | 2007-07-12 | 2008-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-10 | 2011-07-12 | 2012-01-11 | $7700.00 | Window Closed / Lapsed |