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US4039716A
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Resin coated glass fibers and method of producing same through use of an aqueous silane-containing sizing composition whereby hydrolysis and polymerization of the silane is inhibited
Assignee: Owens Corning
•
Filing: 1974-09-20
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Granted: 1977-08-02
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Expires: 1994-09-20
Abstract
Abstract Glass fibers are coated with a size comprising emulsified particles of a prepolymer having an organo functional silane locked into the protective colloid layer surrounding the particles. In that state silane hydrolysis and polymerization is inhibited. The silane coated prepolymer particles have an overlay of an ethoxylated fatty alkyl radical. The size also contains a lubricant comprising emulsified particles of a white oil coated with a mixture of ethoxylated fatty alcohols, ethoxylated fatty acids, and a diethoxylated fatty amine. The water phase of the size involves a dissolved cationic silane, as for example, gamma-aminopropyltriethoxysilane and dissolved nonionic lubricant, as for example, an ethoxylated fatty acid. The preferred emulsifier for the prepolymer is a polyoxypropylene-polyoxyethylene adduct. The size is made by adding an organo functional silane monomer to the emulsion of the prepolymer so that the silane adds to the oil phase. Thereafter the water solution of the silane and the water soluble lubricant are added, followed by the emulsion of the oil.
Inventors
- 👤 Carl A. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:51
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/28; C03C25/30; C03C25/255; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2962; Y10T428/2964
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
Glass fibers coated with the dried residue of an aqueous dispersion comprising the following solids in percent by weight: ______________________________________
Materials % By Weight
______________________________________
Emulsion prepolymer [solids] stabilized by
33- 66
an adduct or adducts of polyoxypropylene
and polyoxyethylene
Emulsion [solids] of an oil stabilized by
3 - 10
an ethoxylated fatty amine
Polyethylene glycol fatty radical adduct
10 - 35
Nonionic trialkoxysilane 5 - 25
Cationic trialkoxysilane 1 - 15
______________________________________ said nonionic trialkoxysilane having been (1) added directly to said emulsion prepolymer stabilized by an adduct or adducts of polyoxypropylene and polyoxyethylene and (2) overcoated with said emulsion of an oil stabilized by an ethoxylated fatty amine to effect locking up of said nonionic trialkoxysilane in the surfactant layer of said emulsion prepolymer.
Claim 2
Dependent Claim
126 words
Glass fibers coated with the dried residue of an aqueous dispersion comprising the following solids in percent by weight: ______________________________________
Materials % By Weight
______________________________________
Emulsion prepolymer [solids] stabilized by
33- 66
an adduct or adducts of polyoxypropylene
and polyoxyethylene
Emulsion [solids] of an oil stabilized by
3 - 10
an ethoxylated fatty amine
Polyethylene glycol fatty radical adduct
10 - 35
Nonionic trialkoxysilane 5 - 25
Cationic trialkoxysilane 1 - 15
______________________________________ said nonionic trialkoxysilane having been (1) added directly to said emulsion prepolymer stabilized by an adduct or adducts of polyoxypropylene and polyoxyethylene and (2) overcoated with said emulsion of an oil stabilized by an ethoxylated fatty amine to effect locking up of said nonionic trialkoxysilane in the surfactant layer of said emulsion prepolymer.
Claim 3
Dependent Claim
15 words
The glass fibers of claim 1 wherein the prepolymer is a bisphenol A-diepoxide reaction product.
Claim 4
Dependent Claim
45 words
The glass fibers of claim 1 wherein said emulsion of an oil comprises from 20 to 40% of an ethoxylated fatty acid, from 20 to 40% of an ethoxylated fatty alcohol, from 5 to 15% of diethoxylated fatty amines, and the balance being an oil.
Claim 5
Dependent Claim
60 words
The glass fibers of claim 1 comprising the following solids in approximate percentages by weight: ______________________________________
Materials % By Weight
______________________________________
Emulsion prepolymer 53.7
stabilized by an adduct of
polyoxypropylene and
polyoxyethylene
Emulsion of an 5.5
oil stabilized by an
ethoxylated fatty radical
and a diethoxylated
fatty amine
Polyethylene glycol-adduct
22.3
fatty radical
Nonionic trialkoxysilane
15.2
Cationic trialkoxysilane
3.3
______________________________________
Claim 6
Dependent Claim
20 words
The glass fibers of claim 1 wherein said nonionic silane is an acryloxypropyltrialkoxysilane, and said cationic silane is a gamma-aminopropyltrialkoxysilane.
References Cited (Backward Citations)
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US3249412A
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Cited
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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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |