US4849468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive compositions
Assignee: Toyoda Gosei Co Ltd
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Filing: 1986-06-19
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Granted: 1989-07-18
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Expires: 2006-06-19
Abstract
Abstract The present invention provides adhesive compositions with strong and firm adhesion to various kinds of synthetic rubbers including polyolefin-type vulcanized rubbers and to various kinds of synthetic resins including polyolefin-type synthetic resins and vinyl chloride resins. The present adhesive compositions comprise a mixture of a chlorinated rubber, an acrylic polymer, a Lewis acid and an organic solvent or a mixture of a chlorinated rubber, an acrylic polymer, a terminal functional group-containing hydrocarbon-type polymer and an organic solvent.
Inventors
- 👤 Tatsuya Murachi
- 👤 Masakazu Nakane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:37
CPC Classifications
C; C09; C09J; C09J151/00; C09J151/04; C09J111/00; C09J115/00; C09J115/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
An adhesive composition comprising a mixture of a chlorinated natural rubber, an acrylic polymer, an inorganic Lewis acid and an organic solvent, wherein the chlorinated natural rubber has a molecular weight of 5,000-100,000 and a chlorination degree of 65% or more, the proportion of the acrylic polymer is 10-500 parts by weight to 100 parts by weight of the chlorinated natural rubber, and the proportion of an inorganic Lewis acid is 0.1-20 parts by weight to 100 parts by weight of the total of the chlorinated natural rubber and the acrylic polymer.
Claim 2
Dependent Claim
92 words
An adhesive composition comprising a mixture of a chlorinated natural rubber, an acrylic polymer, an inorganic Lewis acid and an organic solvent, wherein the chlorinated natural rubber has a molecular weight of 5,000-100,000 and a chlorination degree of 65% or more, the proportion of the acrylic polymer is 10-500 parts by weight to 100 parts by weight of the chlorinated natural rubber, and the proportion of an inorganic Lewis acid is 0.1-20 parts by weight to 100 parts by weight of the total of the chlorinated natural rubber and the acrylic polymer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |