US4140833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Size composition comprising an epoxy resin PVP and a silane and glass fibers treated therewith
Assignee: Owens Corning
•
Filing: 1977-06-02
•
Granted: 1979-02-20
•
Expires: 1997-06-02
Abstract
Abstract A glass size composition comprising an epoxy resin emulsion, a polyvinylpyrrolidone, gamma-methacryloxypropyltriethoxysilane and a polyethylene glycol ester monostearate is particularly suitable for use in continuous pultrusion.
Inventors
- 👤 Richard A. McCoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:48
CPC Classifications
C; C08; C08L; C08L63/00; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/32; C03C25/36; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/54; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C08L39/00; C08L39/04; C08L39/06; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T442/00; Y10T442/20; Y10T442/2402
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
17 words
An aqueous composition comprising an epoxy resin emulsion, gamma-methacryloxypropyltriethoxysilane, a polyvinylpyrrolidone, and a polyethylene glycol ester monostearate.
Claim 2
Dependent Claim
17 words
An aqueous composition comprising an epoxy resin emulsion, gamma-methacryloxypropyltriethoxysilane, a polyvinylpyrrolidone, and a polyethylene glycol ester monostearate.
Claim 3
Dependent Claim
30 words
The aqueous composition of claim 1 in which said composition comprises said epoxy resin emulsion in an amount within the range of from about 4 to about 7 weight percent.
Claim 4
Dependent Claim
22 words
The aqueous composition of claim 2 in which said epoxy resin of said emulsion comprises the reaction product of epichlorohydrin and bisphenol-A.
Claim 5
Dependent Claim
28 words
The aqueous composition of claim 1 in which said composition comprises said gamma-methacryloxypropyltriethoxysilane in an amount within the range of from about 0.25 to about 0.75 weight percent.
Claim 6
Dependent Claim
28 words
The aqueous composition of claim 1 in which said composition comprises said polyvinylpyrrolidone in an amount within the range of from about 0.2 to about 2 weight percent.
Claim 7
Dependent Claim
31 words
The aqueous composition of claim 1 in which said composition comprises said polyethylene glycol ester monostearate in an amount within the range of from about 0.8 to about 2.5 weight percent.
Claim 8
Dependent Claim
26 words
At least one glass fiber having at least a portion of its surface in contact with the residue derived from the aqueous composition of claim 1.
Claim 9
Dependent Claim
31 words
The glass fiber of claim 7 in which said aqueous composition comprises said epoxy resin emulsion in an amount within the range of from about 4 to about 7 weight percent.
Claim 10
Dependent Claim
22 words
The glass fiber of claim 8 in which said epoxy resin of said emulsion comprises the reaction product of epichlorohydrin and bisphenol-A.
Claim 11
Dependent Claim
29 words
The glass fiber of claim 7 in which said aqueous composition comprises said gamma-methacryloxypropyltriethoxysilane in an amount within the range of from about 0.25 to about 0.75 weight percent.
Claim 12
Dependent Claim
29 words
The glass fiber of claim 7 in which said aqueous composition comprises said polyvinylpyrrolidone in an amount within the range of from about 0.2 to about 1 weight percent.
Claim 13
Dependent Claim
32 words
The glass fiber of claim 7 in which said aqueous composition comprises said polyethylene glycol ester monostearate in an amount within the range of from about 0.8 to about 2.5 weight percent.
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) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |