US3649320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling agent copolymers of amine silicates and organofunctional silanes
Assignee: EIDP Inc
•
Filing: 1970-02-16
•
Granted: 1972-03-14
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Expires: 1990-02-16
Abstract
Abstract Coupling agent formulations comprising compatible mixtures of an organofunctional silane and an amine silicate and reinforcing fillers treated with such formulations.
Inventors
- 👤 Paul C Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:59
CPC Classifications
C; C08; C08G; C08G83/00; C08G83/001; C01; C01B; C01B33/00; C01B33/113; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2956
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
41 words
An aqueous coupling agent formulation of the composition of claim 1 wherein 50 to 90 percent of the total silicon are in the form of an organofunctional silane and 10 to 50 percent are in the form of an amine silicate.
Claim 2
Dependent Claim
19 words
An aqueous coupling agent formulation of the composition of claim 1 wherein the amine silicate is dimethylamine or ethanolamine.
Claim 3
Dependent Claim
20 words
An aqueous coupling agent formulation of the composition of claim 3 wherein the organofunctional silane is vinyltriethoxysilane, gamma-aminopropyltriethoxysilane or gamma-methacrylopropyltrimethoxysilane.
Claim 4
Dependent Claim
24 words
A reinforcing filler material coated with 0.01 to 20.0 percent by weight of a polymerized coupling agent formulation of the composition of claim 1.
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |