Patent US2951772A successfully refreshed from Google Patents.
US2951772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatments for fibrous glass used to reinforce resins
Assignee: Owens Corning
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Filing: 1956-12-10
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Granted: 1960-09-06
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Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Marzocchi Alfred
- 👤 Nicholas S Janetos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:29
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20; E04C2/22; B; B29; B29C; B29C70/00; B29C70/003; C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/32; C03C25/323; B29K; B29K2309/00; B29K2309/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
229 words
REINFORCED RESIN INCLUDING A RESIN, GLASS FIBERS AS A REINFORCEMENT AND A COATING ON THE GLASS FIBERS TO IMPROVE PROCESSING CHARACTERISTICS OF THE FIBERS AND TO IMPROVE THE BONDING RELATIONSHIP BETWEEN THE RESIN AND THE GLASS FIBERS, THE COATING COMPRISING THE REACTION PRODUCT RESULTING FROM HEATING A 70 PERCENT SOLUTION OF A POLYESTER RESIN IN MONOMERIC STYRENE, WHICH RESIN IS ONE FORMED BY CONDENSATION REACTION OF DIBASIC ACID, AT LEAST A PART OF WHICH IS AN UNSATURATED DIBASIC ACID WITH A GLYCOL, AND WHICH CURES ALONE TO A TOUGH, RIGID POLYMER, A 50 PERCENT SOLUTION OF A POLYESTER RESIN IN MONOMERIC STYRENE, WHICH RESIN IS ONE FORMED BY CONDENSATION REACTION OF DIBASIC ACID, AT LEAST A PART OF WHICH IS AN UNSATURATED DIBASIC ACID WITH A GLYCOL, AND WHICH CURES ALONE TO A TOUGH, FLEXIBLE POLYMER, MONOMERIC STYRENE, POLYVINYL ALCOHOL, A WETTING AGENT, AND A VINYL SILANE COUPLING AGENT, THE MATERIALS BEING PRESENT IN THE RATIO OF 6 TO 12.6 PERCENT BY WEIGHT OF 70 PERCENT POLYESTER, 1 TO 2.1 PERCENT BY WEIGHT OF 50 PERCENT POLYESTER, 0.35 TO 3 PERCENT BY WEIGHT OF STYRENE, 0.03 TO 0.2 PERCENT BY WEIGHT POLYVINYL ALCOHOL, 0.1 TO 0.6 PERCENT BY WEIGHT OF WETTING AGENT, AND 0.3 TO 0.9 PERCENT BY WEIGHT OF VINYL SILANE, WHEREIN THE POLYVINYL ALCOHOL TO COUPLING AGENT RATIO ON A SOLIDS-WEIGHT BASIS IS FROM 1:3 TO 1:6.
Claim 2
Dependent Claim
229 words
REINFORCED RESIN INCLUDING A RESIN, GLASS FIBERS AS A REINFORCEMENT AND A COATING ON THE GLASS FIBERS TO IMPROVE PROCESSING CHARACTERISTICS OF THE FIBERS AND TO IMPROVE THE BONDING RELATIONSHIP BETWEEN THE RESIN AND THE GLASS FIBERS, THE COATING COMPRISING THE REACTION PRODUCT RESULTING FROM HEATING A 70 PERCENT SOLUTION OF A POLYESTER RESIN IN MONOMERIC STYRENE, WHICH RESIN IS ONE FORMED BY CONDENSATION REACTION OF DIBASIC ACID, AT LEAST A PART OF WHICH IS AN UNSATURATED DIBASIC ACID WITH A GLYCOL, AND WHICH CURES ALONE TO A TOUGH, RIGID POLYMER, A 50 PERCENT SOLUTION OF A POLYESTER RESIN IN MONOMERIC STYRENE, WHICH RESIN IS ONE FORMED BY CONDENSATION REACTION OF DIBASIC ACID, AT LEAST A PART OF WHICH IS AN UNSATURATED DIBASIC ACID WITH A GLYCOL, AND WHICH CURES ALONE TO A TOUGH, FLEXIBLE POLYMER, MONOMERIC STYRENE, POLYVINYL ALCOHOL, A WETTING AGENT, AND A VINYL SILANE COUPLING AGENT, THE MATERIALS BEING PRESENT IN THE RATIO OF 6 TO 12.6 PERCENT BY WEIGHT OF 70 PERCENT POLYESTER, 1 TO 2.1 PERCENT BY WEIGHT OF 50 PERCENT POLYESTER, 0.35 TO 3 PERCENT BY WEIGHT OF STYRENE, 0.03 TO 0.2 PERCENT BY WEIGHT POLYVINYL ALCOHOL, 0.1 TO 0.6 PERCENT BY WEIGHT OF WETTING AGENT, AND 0.3 TO 0.9 PERCENT BY WEIGHT OF VINYL SILANE, WHEREIN THE POLYVINYL ALCOHOL TO COUPLING AGENT RATIO ON A SOLIDS-WEIGHT BASIS IS FROM 1:3 TO 1:6.
References Cited (Backward Citations)
US2801189A
Cited
US2754237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |