US3936576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber laminates
Assignee: Bridgestone Firestone Inc
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Filing: 1974-08-12
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Granted: 1976-02-03
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Expires: 1994-08-12
Abstract
Abstract The adhesive properties of compositions which contain an organic isocyanate, with or without a film-former, are improved by the inclusion of nitrosyl halide adducts of unsaturated compounds which act as adhesive promoters. The compositions are useful for adhering natural and synthetic polymeric elastomers, and are particularly useful in the production of laminations formed from polyurethane polymers and other substrates including metals, etc. and especially the formation of laminations from the cured tread of a conventional rubber to a curable polyurethane prepolymer composition which can be formed in the shape of a tire body.
Inventors
- 👤 Edward Leo Kay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:21
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29D30/54; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C09; C09J; C09J175/00; C08G2380/00; C08J2321/00; C08L; C08L2666/00; C08L2666/28; C08L2666/36; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31826; Y10T428/31855
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
52 words
A lamination of two rubber substrates adhered by the cured adhesive composition of an organic isocyanate and an adhesion promoter of the class consisting of 2-chlorocyclohexanone oxime, mono or di-nitrosylchloride adduct of dicyclopentadiene in the oxime form and a substantially 16.5-weight per cent nitrosyl chloride adduct of polybutadiene in the oxime form.
Claim 2
Dependent Claim
52 words
A lamination of two rubber substrates adhered by the cured adhesive composition of an organic isocyanate and an adhesion promoter of the class consisting of 2-chlorocyclohexanone oxime, mono or di-nitrosylchloride adduct of dicyclopentadiene in the oxime form and a substantially 16.5-weight per cent nitrosyl chloride adduct of polybutadiene in the oxime form.
Claim 3
Dependent Claim
12 words
The lamination of claim 1 in which the promoter is 2-chlorocyclohexanone oxime.
Claim 4
Dependent Claim
20 words
The lamination of claim 1 in which the promoter is mono or di-nitrosylchloride adduct of dicyclopentadiene in the oxime form.
Claim 5
Dependent Claim
24 words
The lamination of claim 1 in which the promoter is a substantially 16.5-weight per cent nitrosyl chloride adduct of polybutadiene in the oxime form.
Claim 6
Dependent Claim
14 words
The lamination of claim 2 in which one of the substrates is a polyurethane.
Claim 7
Dependent Claim
14 words
The lamination of claim 1 in which one of the substrates is a polyurethane.
Claim 8
Dependent Claim
14 words
The lamination of claim 3 in which one of the substrates is a polyurethane.
Claim 9
Dependent Claim
14 words
The lamination of claim 4 in which one of the substrates is a polyurethane.
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) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |