US3814715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber size containing polyolefin emulsion
Assignee: PPG Industries Inc
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Filing: 1972-02-04
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Granted: 1974-06-04
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Expires: 1992-02-04
Abstract
Abstract AN AQUEOUS FORMING SIZE FOR TREATING A GLASS FIBER STRAND, SAID SIZE CONSISTING ESSENTIALLY OF A POLYPROPYLENE EMULSION, A TEXTILE LUBRICANT AND A COUPLING AGENT. THE POLYPROPYLENE EMULSION CAN CONTAIN SOME EMULSIFIED POLYETHYLENE. THE SIZED STRANDS CAN BE FURTHER COATED WITH AN AQUEOUS RUBBER ADHESIVE COMPOSITION IN PREPARATION FOR USE AS REIN FORCEMENT FOR RUBBER.
Inventors
- 👤 C Nalley
- 👤 J Lovelace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:29
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/28; C03C25/30; C08J2321/00
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |