US4300970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding vulcanized rubber to resin
Assignee: Bridgestone Corp
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Filing: 1980-05-13
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Granted: 1981-11-17
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Expires: 2000-05-13
Abstract
Abstract A composite composed of vulcanized rubber and thermoplastic resin which adheres tightly to the rubber can be obtained by treating the surface of the vulcanized rubber with at least one of halogen, halogen generating compound and halogenoid, and bonding melted polyamide resin, polyester resin, styrene series resin or acrylic resin to the above treated rubber surface region by the injection or extrusion molding.
Inventors
- 👤 Toshio Honda
- 👤 Masao Ogawa
- 👤 Yukio Fukuura
- 👤 Hikaru Ishikawa
- 👤 Kazuo Naito
- 👤 Setsuo Akiyama
- 👤 Itsuo Tanuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:31
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J5/00; C08J5/12; C08J5/121; B; B29; B29C; B29C45/00; B29C45/14; B29C45/14778; B29C45/14811; B29C45/16; B29C45/1657; B29K; B29K2621/00; B29K2715/00; B29K2715/006; C08J2321/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31833; Y10T428/31837
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
76 words
A method of bonding vulcanized rubber to resin, comprising treating the surface of a vulcanized rubber with at least one member selected from the group consisting of halogen, halogen generating compound, and halogenoid to form a treated rubber surface region, and bonding a heated and melted resin selected from the group consisting of polyamide resin, polyester resin, styrene series resin and acrylic resin to the above treated rubber surface region by the injection or extrusion molding.
Claim 2
Independent Claim
76 words
A method of bonding vulcanized rubber to resin, comprising treating the surface of a vulcanized rubber with at least one member selected from the group consisting of halogen, halogen generating compound, and halogenoid to form a treated rubber surface region, and bonding a heated and melted resin selected from the group consisting of polyamide resin, polyester resin, styrene series resin and acrylic resin to the above treated rubber surface region by the injection or extrusion molding.
Claim 3
Dependent Claim
24 words
A method according to claim 1, wherein said halogen is at least one member selected from the group consisting of chlorine, bromine and iodine.
Claim 4
Dependent Claim
14 words
A method according to claim 1, wherein said halogen generating compound is hypochlorous acid.
Claim 5
Dependent Claim
24 words
A method according to claim 1, wherein said halogenoid is at least one member selected from the group consisting of N,N-dichloro-p-toluenesulfonamide and trichloroisocyanuric acid.
Claim 6
Dependent Claim
12 words
A method according to claim 1, wherein said resin is polyamide resin.
Claim 7
Dependent Claim
22 words
A method according to claim 5, wherein said polyamide resin consists mainly of polyamide resin having amide groups in the main chain.
Claim 8
Dependent Claim
12 words
A method according to claim 1, wherein said resin is polyester resin.
Claim 9
Dependent Claim
21 words
A method according to claim 7, wherein said polyester resin is thermoplastic resin consisting mainly of polyethylene terephthalate or polybutylene terephthalate.
Claim 10
Dependent Claim
13 words
A method according to claim 1, wherein said resin is styrene series resin.
Claim 11
Dependent Claim
12 words
A method according to claim 1, wherein said resin is acrylic resin.
References Cited (Backward Citations)
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Cited
US3657046A
Cited
US3725177A
Cited
US3940548A
Cited
US3861980A
Cited
US3962011A
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US3968316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-16 | 1985-05-18 | 1985-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-16 | 1989-05-18 | 1989-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-16 | 1993-05-18 | 1993-11-17 | $7700.00 | Window Closed / Lapsed |