US4126729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fibers sized with vinyl acetate copolymers
Assignee: Owens Corning
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Filing: 1977-05-05
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Granted: 1978-11-21
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Expires: 1997-05-05
Abstract
Abstract Disclosed are gun roving glass fibers coated with an aqueous-based size comprising an epoxidized polyvinyl acetate copolymer in combination with a vinyl acetate-ethylene copolymer and a vinyl acetate copolymer.
Inventors
- 👤 Tom A. Richardson
- 👤 William N. Haggerty
- 👤 Fred G. Krautz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:34
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/28; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/2958; Y10T428/2962
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
33 words
Glass fibers coated with an effective amount of a substance derived from an aqueous composition comprising an epoxidized polyvinyl acetate copolymer, an ethylene vinyl acetate copolymer, and a vinyl acetate ethyl acrylate copolymer.
Claim 2
Dependent Claim
33 words
Glass fibers coated with an effective amount of a substance derived from an aqueous composition comprising an epoxidized polyvinyl acetate copolymer, an ethylene vinyl acetate copolymer, and a vinyl acetate ethyl acrylate copolymer.
Claim 3
Dependent Claim
34 words
The glass fibers of claim 1 in which said epoxidized polyvinyl acetate copolymer is present in said aqueous composition in an amount within the range of from about 1.5 to about 3 weight percent.
Claim 4
Dependent Claim
30 words
The glass fibers of claim 1 in which said ethylene vinyl acetate copolymer is present in an amount within the range of from about 1.8 to about 3.6 weight percent.
Claim 5
Dependent Claim
31 words
The glass fibers of claim 1 in which said vinyl acetate ethyl acrylate copolymer is present in an amount within the range of from about 3.7 to about 7.4 weight percent.
Claim 6
Dependent Claim
24 words
The glass fibers of claim 1 in which said aqueous composition comprises a silane coupling agent, a methacrylate chromic chloride and a polyethyleneimine condensate.
Claim 7
Dependent Claim
26 words
The glass fibers of claim 1 in which said aqueous composition comprises a silane coupling agent, a methacrylate chromic chloride, a polyethyleneimine condensate and a lubricant.
Claim 8
Dependent Claim
42 words
Glass fibers coated with the dried residue of an aqueous mixture consisting essentially of an epoxidized polyvinyl acetate copolymer, an ethylene vinyl acetate copolymer, a vinyl acetate ethyl acrylate copolymer, a silane coupling agent, a methacrylate chromic chloride and a polyethyleneimine condensate.
Claim 9
Dependent Claim
42 words
Glass fibers coated with the dried residue of an aqueous mixture consisting essentially of an epoxidized polyvinyl acetate copolymer, an ethylene vinyl acetate copolymer, a vinyl acetate ethyl acrylate copolymer, a silane coupling agent, a methacrylate chromic chloride and a polyethyleneimine condensate.
Claim 10
Dependent Claim
43 words
Glass fibers coated with the dried residue of an aqueous mixture consisting essentially of an epoxidized polyvinyl acetate copolymer, an ethylene vinyl acetate copolymer, a vinyl acetate ethyl acrylate copolymer, a silane glass coupling agent, a Werner-type chromium complex and a polyethyleneimine condensate.
Claim 11
Dependent Claim
43 words
Glass fibers coated with the dried residue of an aqueous mixture consisting essentially of an epoxidized polyvinyl acetate copolymer, an ethylene vinyl acetate copolymer, a vinyl acetate ethyl acrylate copolymer, a silane glass coupling agent, a Werner-type chromium complex and a polyethyleneimine condensate.
Claim 12
Dependent Claim
93 words
Glass fibers coated with the dried residue of an aqueous mixture consisting essentially of from about 1.5 to about 3% of an epoxidized polyvinyl acetate copolymer; from about 1.8 to about 3.6% of an ethylene vinyl acetate copolymer; from about 3.7 to about 7.4% of a vinyl acetate ethyl acrylate copolymer; from about 0.05 to about 0.50% of a silane glass coupling agent; from about 0.5 to about 5.0% of a Werner-type chromium complex; and from about 0.03 to about 0.10% of a polyethyleneimine; said percentages being by weight of the aqueous mixture.
Claim 13
Dependent Claim
93 words
Glass fibers coated with the dried residue of an aqueous mixture consisting essentially of from about 1.5 to about 3% of an epoxidized polyvinyl acetate copolymer; from about 1.8 to about 3.6% of an ethylene vinyl acetate copolymer; from about 3.7 to about 7.4% of a vinyl acetate ethyl acrylate copolymer; from about 0.05 to about 0.50% of a silane glass coupling agent; from about 0.5 to about 5.0% of a Werner-type chromium complex; and from about 0.03 to about 0.10% of a polyethyleneimine; said percentages being by weight of the aqueous mixture.
Claim 14
Dependent Claim
25 words
The glass fibers of claim 9 wherein the epoxidized polyvinyl acetate copolymer is a copolymer of vinyl acetate and a minor amount of glycidyl methacrylate.
Claim 15
Dependent Claim
16 words
The glass fibers of claim 9 wherein the glycidyl methacrylate comprises approximately 2% of the copolymer.
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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) | 1981-11-20 | 1982-05-22 | 1982-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-20 | 1986-05-22 | 1986-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-20 | 1990-05-22 | 1990-11-21 | $7700.00 | Window Closed / Lapsed |