EP0104555A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Treated glass fibers for use in an aqueous dispersion to manufacture nonwoven mat
Assignee: PPG Industries Inc
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Filing: 1983-09-16
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Granted: —
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Expires: 2003-09-16
Abstract
Abstract Chopped glass fibers used to manufacture a mat from an aqueous dispersion of the chopped glass fibers and/or strands are difficult to disperse in water especially if the fibers have large amounts of a protective organic coating. Treated glass fibers can be produced according to the invention that have adequate protection for gathering into strands and that, when chopped, are more dispersible in aqueous media. The treated glass fibers have a coating of an aqueous treating composition having a cationic surfactant having one or more primary, secondary and/or tertiary amine moieties and one or more water dispersible, emulsifiable or soluble polyols and one or more polar functional coupling agents. Glass fibers treated with the aqueous treating compositions and produced into wet or dry chopped glass fiber strands having lengths of about 1/16 of an inch (1.58 mm) to about 3 inches (76.2 mm), and have good dispersibility in aqueous media with or without addition of dispersing agents for production of nonwoven sheet-like mat.
Inventors
- 👤 Edward Chung-Hsing Hsu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 04:32
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
147 words
Glass fibers having an aqueous treating composition on their surfaces, where the treating composition has a coupling agent and cationic agents characterized in that the treating composition consists of: a) a cationic agent that is one or more cationic surfactants having one or more primary, secondary, and/or tertiary amine moieties in an amount of about 0.001 to about 10 weight percent of the aqueous treating composition, b) a coupling agent that is one or more polar functional coupling agents in an amount of about 0.01 to about 2 weight percent of the aqueous treating composition, and c) the water is present in an amount to give a solids content that is effective for applying the composition to glass fibers and the aqueous treating composition has: d) one or more water soluble, dispersible or emulsifiable polyols in an effective amount to provide sufficient protection to the glass fibers.
Claim 2
Dependent Claim
147 words
Glass fibers having an aqueous treating composition on their surfaces, where the treating composition has a coupling agent and cationic agents characterized in that the treating composition consists of: a) a cationic agent that is one or more cationic surfactants having one or more primary, secondary, and/or tertiary amine moieties in an amount of about 0.001 to about 10 weight percent of the aqueous treating composition, b) a coupling agent that is one or more polar functional coupling agents in an amount of about 0.01 to about 2 weight percent of the aqueous treating composition, and c) the water is present in an amount to give a solids content that is effective for applying the composition to glass fibers and the aqueous treating composition has: d) one or more water soluble, dispersible or emulsifiable polyols in an effective amount to provide sufficient protection to the glass fibers.
Claim 3
Dependent Claim
70 words
Glass fibers of Claim 1, wherein in the treating composition the cationic surfactant is selected from the group consisting of aliphatic mono-, di- and polyamines, 2-alkyl-2-imidazolines, 1-(2-aminoethyl)-2-alkyl-2-imidazoline; amine oxides, polyoxyalkylene alkylamines, 1-(2-hydroxyalkyl)-2-alkyl-2-imidazoline, 2-hydroxy-alkyl-2-imidazoline, N, N N', N', tetrakis- substituted ethylene diamine derivatives, rosin derived amines, polyoxyethylene alicyclic amines; polyoxyethylenedihydroabietyl amines and reaction products of carboxylic or fatty acids with di or polyamines or dialkylene or polyalkylamines and polyalkoxylated derivatives thereof.
Claim 4
Dependent Claim
53 words
Glass fibers of Claims 1 or 2, wherein in the treating composition the cationic surfactant is a lubricating surfactant selected from alkyl imidazoline derivatives including compounds of the class n-alkyl-N-amidoalkyl imidazolines, which may be formed by causing fatty acids or carboxylic acids to react with polyalkylene polyamines under conditions that produce ring closure.
Claim 5
Dependent Claim
36 words
Glass fibers of Claims 1-3, wherein in the treating composition, the polyol has a viscosity greater than 30,000 centistokes (0.03 m 2 /sec.) at 100°F. (37.8°C) and 1,000 centistokes (0.001 m 2 /sec.) at 210-F. (98.9°C.).
Claim 6
Dependent Claim
32 words
Glass fibers of Claims 1-4, wherein in the treating composition the polyol is selected from the group consisting of alkylene glycols, dialkylene glycols, and triols, polyalkylene glycols, polyoxyalkylene glycols or mixtures thereof.
Claim 7
Dependent Claim
32 words
Glass fibers of Claims 1-5, wherein in the treating composition the amount of the polyol is in the range of about 0.1 to about 10 weight percent of the aqueous treating composition.
Claim 8
Dependent Claim
45 words
Glass fibers of Claims 1-6, wherein in the treating composition the polar functional coupling agent is selected from epoxy silane coupling agents, amino silane coupling agents, acrylic- containing silane coupling agents, thio-containing silane coupling agents, ureido-modified silane coupling agents, and organo chlorine silane coupling agents.
Claim 9
Dependent Claim
14 words
Glass fibers of Claims 1-7 having the dried residue of the aqueous treating composition.
Claim 10
Dependent Claim
33 words
Glass fibers of Claims 1-8, wherein the amount of the treating composition on the glass fibers is in the range of about 0.01 to about 5 weight percent of the treated glass fibers.
Claim 11
Dependent Claim
62 words
Nonwoven, sheet-like mat made from an aqueous dispersion of chopped glass fibers of Claims 1-9, where the chopped glass fibers have a length of about 1/16 of an inch to about 3 inches and are present in an amount of about 0.001 to about 5 weight percent of the dispersion, where the mat has less water than that present in the dispersion.
References Cited (Backward Citations)
No citation records indexed.
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