Patent US3935344A successfully refreshed from Google Patents.
US3935344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sizing composition and glass fibers treated therewith
Assignee: Owens Corning
•
Filing: 1972-07-17
•
Granted: 1976-01-27
•
Expires: 1992-07-17
Abstract
Abstract A sizing for glass fibers, comprising water dispersible epoxy resin, polyvinyl acetate copolymer, vinyl ethylene copolymer, an organosilane, wax, lubricant, and a fluid silicone emulsion is provided, whereby the sized fibers in the form of strands, possess excellent integrity and whiteness in color when incorporated into a resinous matrix.
Inventors
- 👤 William H. Haggerty
- 👤 Gerhard N. Bolen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:21
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; B; B29; B29C; B29C70/00; B29C70/003; C08; C08L; C08L67/00; C08L67/06; D; D02; D02G; D02G3/00; D02G3/02; D02G3/16; D02G3/18; B29K; B29K2309/00; B29K2309/08; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/298; Y10T428/31504; Y10T428/31511; Y10T428/31525; Y10T428/31652; Y10T428/31663; Y10T428/31725; Y10T428/31765; Y10T428/31786; Y10T428/31801; Y10T428/31855; Y10T428/31909; Y10T428/31924
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
Glass fiber strands having from approximately 1 to 2 percent by weight of a dried coating of a sizing composition comprising in percent by weight: Materials % by Weight
______________________________________
Water soluble resin mixture given below
1.50
Vinyl acetate, N-methylol-
3.85
acrylamide copolymer emulsion
Ethylene-vinyl acetate 3.85
copolymer emulsified
particles stabilized by
a partially acetylated
polyvinyl alcohol protective
colloid
Gamma-methacryloxypropyl-
0.10
trimethoxysilane
Glacial acetic acid 0.30
Wax 0.10
Lubricant 0.30
Paintable fluid silicone
0.50
emulsion
Deionized water Balance
______________________________________ said water soluble resin mixture being the reaction product of 1 mol of a diepoxy with 1 mol of diethanolamine and 1 mol of a polyglycol monoester with the preponderance of the diepoxy molecules having one diethanolamine molecule reacted with one oxirane group thereof and one polyglycol monoester molecule reacted with the other oxirane group thereof.
Claim 2
Dependent Claim
135 words
Glass fiber strands having from approximately 1 to 2 percent by weight of a dried coating of a sizing composition comprising in percent by weight: Materials % by Weight
______________________________________
Water soluble resin mixture given below
1.50
Vinyl acetate, N-methylol-
3.85
acrylamide copolymer emulsion
Ethylene-vinyl acetate 3.85
copolymer emulsified
particles stabilized by
a partially acetylated
polyvinyl alcohol protective
colloid
Gamma-methacryloxypropyl-
0.10
trimethoxysilane
Glacial acetic acid 0.30
Wax 0.10
Lubricant 0.30
Paintable fluid silicone
0.50
emulsion
Deionized water Balance
______________________________________ said water soluble resin mixture being the reaction product of 1 mol of a diepoxy with 1 mol of diethanolamine and 1 mol of a polyglycol monoester with the preponderance of the diepoxy molecules having one diethanolamine molecule reacted with one oxirane group thereof and one polyglycol monoester molecule reacted with the other oxirane group thereof.
Claim 3
Dependent Claim
25 words
The glass fiber strands as claimed in claim 1, wherein the strands are of a length of from about 1/8 inch to about 2 inches.
Claim 4
Dependent Claim
19 words
The glass fiber strands as claimed in claim 1, wherein the strands are in the form of a roving.
Claim 5
Dependent Claim
151 words
Glass fiber strands having from approximately 1 to 2 percent by weight of a dried coating of a sizing composition comprising in percent by weight: Materials % By Weight
______________________________________
Water soluble resin mixture given below
0.5 - 3.0
Vinyl acetate, N-methylol-
2.0 - 5.0
acrylamide copolymer emulsion
Ethylene-vinyl acetate 2.0 - 5.0
copolymer emulsified
particles stabilized by
a partially acetylated
polyvinyl alcohol protective
colloid
Gamma-methacryloxypropyl-
.01 - 5.0
trimethoxysilane
Glacial acetic acid 0.1 - 1.0
Wax 0.1 - 1.5
Lubricant 0.1 - 1.5
Paintable fluid silicone
0.1 - 5.0
emulsion
Deionized water Balance
______________________________________ said water soluble resin mixture being the reaction product of 1 mol of a diepoxy with 1 mol of diethanolamine and 1 mol of a polyglycol monoester with the preponderance of the diepoxy molecules having one diethanolamine molecule reacted with one oxirane group thereof and one polyglycol monoester molecule reacted with the other oxirane group thereof.
Claim 6
Dependent Claim
151 words
Glass fiber strands having from approximately 1 to 2 percent by weight of a dried coating of a sizing composition comprising in percent by weight: Materials % By Weight
______________________________________
Water soluble resin mixture given below
0.5 - 3.0
Vinyl acetate, N-methylol-
2.0 - 5.0
acrylamide copolymer emulsion
Ethylene-vinyl acetate 2.0 - 5.0
copolymer emulsified
particles stabilized by
a partially acetylated
polyvinyl alcohol protective
colloid
Gamma-methacryloxypropyl-
.01 - 5.0
trimethoxysilane
Glacial acetic acid 0.1 - 1.0
Wax 0.1 - 1.5
Lubricant 0.1 - 1.5
Paintable fluid silicone
0.1 - 5.0
emulsion
Deionized water Balance
______________________________________ said water soluble resin mixture being the reaction product of 1 mol of a diepoxy with 1 mol of diethanolamine and 1 mol of a polyglycol monoester with the preponderance of the diepoxy molecules having one diethanolamine molecule reacted with one oxirane group thereof and one polyglycol monoester molecule reacted with the other oxirane group thereof.
Claim 7
Dependent Claim
25 words
The glass fiber strands as claimed in claim 4, wherein the strands are of a length of from about 1/8 inch to about 2 inches.
Claim 8
Dependent Claim
19 words
The glass fiber strands as claimed in claim 4, wherein the strands are in the form of a roving.
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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |