Patent US4066106A successfully refreshed from Google Patents.
US4066106A
Expired / Lapsed
US
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Sized woven glass fabric
Assignee: PPG Industries Inc
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Filing: 1976-03-22
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Granted: 1978-01-03
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Expires: 1996-03-22
Abstract
Abstract A sizing composition for textile glass fibers comprising a starch, a textile softener, a lubricant and 100 to 150 percent by weight of combined nonionic wetting agents based upon the weight of said lubricant. The glass fibers sized in accordance with this sizing composition has found utility in forming untwisted yarns which are to be subsequently used for the weft of a textile glass fabric.
Inventors
- 👤 Roy R. Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:57
CPC Classifications
D; D03; D03D; D03D15/00; D03D15/20; D03D15/242; D03D15/267; C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/32; C03C25/321; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2402; Y10T442/30; Y10T442/3179; Y10T442/322
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
76 words
A sized woven glass fabric having weft and warp portions characterized by the weft portion being composed of fiber glass yarns having thereon the dried residue of an aqueous sizing composition comprising a starch, a lubricant, a textile softener and 100 to 150 percent by weight of a nonionic wetting agent based on the weight of said lubricant, said glass fiber fabric being further characterized by having the fiber glass yarns in the weft portion untwisted.
Claim 2
Dependent Claim
76 words
A sized woven glass fabric having weft and warp portions characterized by the weft portion being composed of fiber glass yarns having thereon the dried residue of an aqueous sizing composition comprising a starch, a lubricant, a textile softener and 100 to 150 percent by weight of a nonionic wetting agent based on the weight of said lubricant, said glass fiber fabric being further characterized by having the fiber glass yarns in the weft portion untwisted.
Claim 3
Dependent Claim
30 words
The sized woven glass fabric of claim 1 wherein the aqueous sizing composition contains 3 to 8 percent by weight of starch and 91 to 96 percent by weight water.
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) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |