Patent US3702794A successfully refreshed from Google Patents.
US3702794A
Expired / Lapsed
US
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Method of improving the adhesion of a siliceous material and a polyolefin using a silane and a chlorinated organic compound
Assignee: Dow Silicones Corp
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Filing: 1971-04-30
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Granted: 1972-11-14
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Expires: 1991-04-30
Abstract
Abstract POLYOLEFIN RESINS, SUCH AS POLYPROPYLENE, ARE STRENGTHENED BY THE INCORPORATION OF A SILICEOUS REINFORCING MATERIAL WHICH HAS A FIRST COATING (A) OF A SILANE COUPLING AGENT, SUCH AS (C2H5O)3SICH2CH2CH2NHCH2CH2NH2 AND A SECOND COATING (B) OF A CHLORINATED ORGANIC COMPOUND, SUCH AS PERCHLORINATED PARA-XYLENE.
Inventors
- 👤 Robert C Hartlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:16
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/40; C08; C08K; C08K9/00; C08K9/04; C08K9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |