US3634054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filamentizing process for glass fibers
Assignee: Owens Corning
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Filing: 1970-08-10
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Granted: 1972-01-11
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Expires: 1990-08-10
Abstract
Abstract A process of making glass fiber mats using a composition which is substantially fugitive in nature for use in the treatment of glass fibers to provide easier filamentization of fiber strands, and which is especially adapted for use on glass fibers which are to be used in the production of glass fiber mats when maximum water-repellent properties are desired. In a preferred embodiment the composition consists of 3,5-dimethyl-1-hexyn-3-01 plus a minor amount of iso-octyl-phenoxy-polyoxyethylene ethanol.
Inventors
- 👤 Joseph P Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:35
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/25
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
24 words
The process of claim 1 wherein the solute in the aqueous solution consists of 98 percent 3,5-dimethyl-1-hexyn-3-o1 and 2 percent by weight isooctyl-phenoxy-poly-oxyethylene ethanol.
Claim 2
Dependent Claim
76 words
In the process of filamentizing strands of glass fibers, the improvement of pretreating said strands with an aqueous composition consisting essentially of an aqueous solution containing at least about 0.1 percent by weight of 3,5-dimethyl-1-hexyn-3-ol and isooctyl-phenoxy-polyoxyethylene ethanol, about 85 to 98.5 percent by weight of the solute in said solution being 3,5-dimethyl-1-hexyn-3-ol and about 1.5 to 15 percent by weight thereof being isooctyl-phenoxy-polyoxyethylene ethanol, and impinging a fluid on the strands to cause filamentizing thereof.
Claim 3
Dependent Claim
29 words
The process of claim 3 in which 3,5-dimethyl-1-hexyn-3-ol constitutes 98 percent by weight of the solute in the aqueous solution and isooctyl-phenoxy-polyoxethylene ethanol constitutes 2 percent by weight thereof.
Claim 4
Dependent Claim
117 words
The process of manufacturing a glass fiber mat which comprises attenuating streams of molten glass into glass fiber filaments, gathering the filaments into strands, treating the surfaces of the filaments with a composition consisting essentially of an aqueous solution containing at least about 0.1 percent by weight of 3,5-dimethyl-1-hexyn-3-ol and isooctyl-phenoxy-polyoxyethylene ethanol, about 85 to 98.5 percent by weight of the solute in said solution being 3,5-dimethyl-1-hexyn-3-ol and about 1.5 to 15 percent by weight thereof being isooctyl-phenoxy-polyoxyethylene ethanol in order to decrease the surface tension of fluid to be applied, gathering the strands of treated filaments into a mat, spraying fluid onto the mat, and separating the filaments Of the strands by application of the fluid.
Claim 5
Dependent Claim
20 words
The process of claim 5 in which the mat is impregnated with a bonding resin after the filaments are separated.
Claim 6
Dependent Claim
14 words
The process of claim 6 in which the mat is additionally impregnated with asphalt.
Claim 7
Dependent Claim
27 words
The process of claim 5 in which the mat is impregnated with a bonding resin, and thereafter heated to cure the resin and volatilize the filamentizing fluid.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |