US3668043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding polypropylene to rubber and the method of making insulated electrical conductors therefrom
Assignee: Associated Materials LLC
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Filing: 1970-11-17
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Granted: 1972-06-06
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Expires: 1990-11-17
Abstract
Abstract The method of the invention comprises the steps of providing an electrically conductive metal core, covering the core with a polyolefin insulating layer, heating the insulating layer to a temperature of 400* to 500* F., then applying a suitable adhesive composition to the insulating layer while it is in the temperature range of 400* to 500* F., then applying a second application of the adhesive composition to the polyolefinadhesive covered conductor, and then applying an elastomer sheath to the polyolefin-adhesive covered conductor after the second application of adhesive composition has been applied thereto.
Inventors
- 👤 Gordon J Muise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:27
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; F; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31833; Y10T428/31837; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31917
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A method of bonding neoprene to polypropylene comprising the steps of first heating said polypropylene to a temperature ranging from 475* to 500* F. then applying to said polypropylene, while said polypropylene is at said temperature, an adhesive composition consisting of chlorinated rubber, brominated poly 2, 3-dichlorobutadiene-1,3 and at least 1 percent, by weight, based on the weight of the solids in said composition, of a poly-C-nitroso aromatic compound, then applying a second application of said adhesive composition to said polypropylene, and then applying said neoprene to the adhesive coated polypropylene under pressure to bond said neoprene to said polypropylene.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |