US2763629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Product for treating glass fibers for improving the adhesion of resins thereto
Assignee: LOF GLASS FIBERS CO
•
Filing: 1952-03-25
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Granted: 1956-09-18
•
Expires: 1972-03-25
Abstract
No abstract record available.
Inventors
- 👤 Gottfurcht Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:01
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
THE METHOD OF PREPARING STABLE DILUTE AQUEOUS HYDROLYZED SOLUTIONS OF AN ALKOXY SILANE CONTAINING A RADICAL SELECTED FROM THE GROUP CONSISTING OF VINYL, A CHLORO VINYL AND B CHLORO VINYL RADICALS ATTACHED TO SILICON AND AT LEAST 2 ALKOXY GROUPS, THE ONLY GROUPS ATTACHED TO SILICON BEING ONE OF THE RADICALS OF SAID GROUP AND ALKOXY RADICALS, COMPRISING THE STEPS OF MIXING FROM ONE TO THIRTY PARTS BY WEIGHT OF THE SILANE TO ONE HUNDRED PARTS BY WEIGHT OF WATER, ADJUSTING THE PH TO THE RANGE OF 3 TO 5, VIGOROUSLY STIRRING SAID MIXTURE UNTIL A CLEAR HOMOGENEOUS SOLUTION IS OBTAINED, AND THEN QUICKLY ADDING AND RAPIDLY MIXING WITH SAID CLEAR SOLUTION SUFFICIENT CAUSTIC ALKALI TO PRODUCE A CLEAR SOLUTION HAVING A PH OF AT LEAST 11.
Claim 2
Independent Claim
127 words
THE METHOD OF PREPARING STABLE DILUTE AQUEOUS HYDROLYZED SOLUTIONS OF AN ALKOXY SILANE CONTAINING A RADICAL SELECTED FROM THE GROUP CONSISTING OF VINYL, A CHLORO VINYL AND B CHLORO VINYL RADICALS ATTACHED TO SILICON AND AT LEAST 2 ALKOXY GROUPS, THE ONLY GROUPS ATTACHED TO SILICON BEING ONE OF THE RADICALS OF SAID GROUP AND ALKOXY RADICALS, COMPRISING THE STEPS OF MIXING FROM ONE TO THIRTY PARTS BY WEIGHT OF THE SILANE TO ONE HUNDRED PARTS BY WEIGHT OF WATER, ADJUSTING THE PH TO THE RANGE OF 3 TO 5, VIGOROUSLY STIRRING SAID MIXTURE UNTIL A CLEAR HOMOGENEOUS SOLUTION IS OBTAINED, AND THEN QUICKLY ADDING AND RAPIDLY MIXING WITH SAID CLEAR SOLUTION SUFFICIENT CAUSTIC ALKALI TO PRODUCE A CLEAR SOLUTION HAVING A PH OF AT LEAST 11.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |