Patent US3664982A successfully refreshed from Google Patents.
US3664982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction product of hydrolyzed siloxane and an imine polymer and glass strands coated therewith
Assignee: Owens Corning
•
Filing: 1969-12-24
•
Granted: 1972-05-23
•
Expires: 1989-12-24
Abstract
Abstract An improved bonding material comprising a hydrolyzed siloxane and a polyimine which is dispersible in the siloxane. The coating material is preferably applied to glass fibers at forming from an aqueous solution, and the coated fibers are preferably used to strengthen a matrix resin which is fused with the coating material so that diffusion of the polyimine into the matrix resin takes place. Composites of the coated glass fibers with matrix resins that are reactive with amine hydrogen have great strength.
Inventors
- 👤 Jerome A Preston
- 👤 Carlton J Davis Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:57
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/40; C08L; C08L83/00; C08L83/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2962; Y10T428/2964
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
25 words
The composition of claim 1 including 0 to approximately 80 percent by weight of solids of a soluble supplemental film former reactive with amine hydrogen.
Claim 2
Dependent Claim
21 words
A glass fiber strand the filaments of which have a generally uniform coating thereon of the dried coating composition of claim
Claim 3
Dependent Claim
15 words
The coating composition of claim 1 in which the composition is a solution in water.
Claim 4
Dependent Claim
28 words
The aqueous coating composition of claim 4 in which said composition includes from approximately 0.01 to approximately 1.0 percent by weight of chloroplatinic acid based on total solids.
Claim 5
Dependent Claim
15 words
The coating composition of claim 4 in which the polyamine is a polymer of ethyleneimine.
Claim 6
Dependent Claim
14 words
The coating composition of claim 4 in which the polyamine is polymerized propylene imine.
Claim 7
Dependent Claim
41 words
The coating composition of claim 4 wherein the product is obtained by the reaction of a siloxane formed by the hydrolysis of normal propyltrimethoxy silane and polyethyleneimine in the presence of chloroplatinic acid and further includes hexamethoxymethylmelamine as a film former.
Claim 8
Dependent Claim
15 words
The coating composition of claim 2 in which the supplemental film former is water soluble.
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |