US4397913A
Expired / Lapsed
US
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Starch-containing treating composition for glass fibers and treated glass fibers and strands
Assignee: PPG Industries Ohio Inc
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Filing: 1980-11-13
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Granted: 1983-08-09
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Expires: 2000-11-13
Abstract
Abstract An aqueous sizing composition for treating glass fibers, the treated glass fiber strands and bulked yarn prepared from the treated glass fiber strands are provided to give treated glass fiber strands having an improved processability and characteristics in yarn bulking operations. The aqueous sizing composition has a modified starch that has Brabender values of gel temperature in the range of about 65° C. to about 90° C. with values maximum viscosity in the range of about 500 B.U. to about 1200 B.U. for a 9.5 dry percent concentration or equivalent. The aqueous sizing composition also has nonionic lubricants, wax, emulsifiers, starch plasticizer, and ester-modified amino silane coupling agent and possibly a biocide and or fungicide and cationic lubricant for treating glass fibers. The aqueous sizing composition can also be used to treat glass fibers of fine diameter, where the aqueous sizing composition has the aforedescribed ingredients including a poly (ethylene oxide) friction reducing agent, cationic amphoteric or nonionic wetting agent, and a fluorochemical surfactant.
Inventors
- 👤 Dennis M. Fahey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:57
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/32; C03C25/321; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2933; Y10T428/2962; Y10T428/2964; Y10T428/2971
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
294 words
An aqueous bulking sizing composition for treating glass fibers during their formation to protect the fibers against interfilament abrasion when fibers are gathered into strands, to allow for facile removal of the strand or strands from supply packages to a bulking operation and to allow the fibers within the strand to become separated to a degree, when the strand or strands are subjected to the separating force of the bulking operation, comprising: a. starch having Brabender values equivalent to gel temperature in the range of about 65° C. to about 90° C. and maximum viscosity in the range of about 500 B.U. to about 1200 B.U. at a 9.5 dry solids percent concentration in an amount in the range of about 30 to about 60 weight percent of the nonaqueous components of the composition; b. hydrogenated nonionic lubricant in the amount in the range of about 15 to about 36 weight percent of the nonaqueous components; c. one or more waxes in an amount of about 3 to about 6 weight percent of the nonaqueous components, d. one or more nonionic emulsifiers giving a total HLB in the range of about 8 to about 12 for emulsification of the nonionic lubricant; e. a starch plasticizer in the amount of about 3 to about 6 weight percent of the nonaqueous components; f. a cationic lubricant in the amount of about 7 to about 14 weight percent of the nonaqueous components; g. one or more ester modified amino silane coupling agents in an amount of about 7 to about 15 weight percent of the nonaqueous components, and h. an amount of water sufficient to yield a total solids for the composition in the range of about 1.5 to about 4 weight percent of the aqueous composition.
Claim 2
Dependent Claim
294 words
An aqueous bulking sizing composition for treating glass fibers during their formation to protect the fibers against interfilament abrasion when fibers are gathered into strands, to allow for facile removal of the strand or strands from supply packages to a bulking operation and to allow the fibers within the strand to become separated to a degree, when the strand or strands are subjected to the separating force of the bulking operation, comprising: a. starch having Brabender values equivalent to gel temperature in the range of about 65° C. to about 90° C. and maximum viscosity in the range of about 500 B.U. to about 1200 B.U. at a 9.5 dry solids percent concentration in an amount in the range of about 30 to about 60 weight percent of the nonaqueous components of the composition; b. hydrogenated nonionic lubricant in the amount in the range of about 15 to about 36 weight percent of the nonaqueous components; c. one or more waxes in an amount of about 3 to about 6 weight percent of the nonaqueous components, d. one or more nonionic emulsifiers giving a total HLB in the range of about 8 to about 12 for emulsification of the nonionic lubricant; e. a starch plasticizer in the amount of about 3 to about 6 weight percent of the nonaqueous components; f. a cationic lubricant in the amount of about 7 to about 14 weight percent of the nonaqueous components; g. one or more ester modified amino silane coupling agents in an amount of about 7 to about 15 weight percent of the nonaqueous components, and h. an amount of water sufficient to yield a total solids for the composition in the range of about 1.5 to about 4 weight percent of the aqueous composition.
Claim 3
Dependent Claim
77 words
The aqueous treating composition of claim 1 which in addition has: a. poly(ethylene oxide) friction reducing polymeric agent in the amount less than around 1 weight percent of the non-aqueous components of the sizing composition; b. amphoteric, cationic, and/or nonionic surfactant in an amount less than 1 weight percent of the non-aqueous components of the composition; and c. a fluorochemical surfactant in an amount less than one weight percent of the non-aqueous components of the sizing composition.
Claim 4
Dependent Claim
33 words
Aqueous treating composition of claim 1 or 2 wherein the starch is partially cooked at a temperature of about 235° F. (113° C.) to about 255° F. (124° C.) in a jet cooker.
Claim 5
Dependent Claim
50 words
Aqueous treating composition of claim 1 or claim 2 wherein the starch has Brabender values at 9.5 percent solids concentration or equivalent of gel point in the range of about 86° C. to 89° C. with about maximum viscosity in the range of about 500 B.U. to about 750 B.U.
Claim 6
Dependent Claim
50 words
Aqueous treating composition of claim 1 or claim 2 wherein the starch has Brabender values at 9.5 percent solids concentration or equivalent of gel point in the range of about 68° C. to about 74° C. with corresponding maximum viscosities in the range of about 800 to about 1200 B.U.
Claim 7
Dependent Claim
21 words
Aqueous treating composition of claim 1 or 2 wherein the hydrogenated nonionic lubricant is a partially or fully hydrogenated vegetable oil.
Claim 8
Dependent Claim
18 words
Aqueous treating composition of claim 1 or 2 wherein the cationic lubricant is an alkyl substituted imidazoline derivative.
Claim 9
Dependent Claim
38 words
Aqueous treating composition of claim 1 or claim 2 wherein the amount of one or more nonionic emulsifiers is in the range of about 0.6 to about 1.2 weight percent of the nonaqueous components of the treating composition.
Claim 10
Dependent Claim
15 words
Aqueous treating composition of claim 1 or claim 2 wherein the wax is paraffin wax.
Claim 11
Dependent Claim
15 words
Aqueous treating composition of claim 1 or claim 2 wherein the starch plasticizer is glycerine.
Claim 12
Dependent Claim
23 words
Aqueous treating composition of claim 1 or claim 2 wherein the ester modified amino-silane is methyl [2-(gamma-trimethoxysily-propyl amino) ethyl-amino] 3-propionate in methanol solvent.
Claim 13
Dependent Claim
17 words
Aqueous treating composition of claim 1 or claim 2 having an effective amount of fungicide or biocide.
Claim 14
Dependent Claim
39 words
Aqueous treating solution of claim 2 wherein the poly(ethylene oxide) polymer has a molecular weight of around 4,000,000 and is present in an amount of about 0.14 to about 0.26 weight percent of the non-aqueous components of the composition.
Claim 15
Dependent Claim
43 words
Aqueous treating solution of claim 2 wherein the cationic, amphoteric and/or nonionic surfactant is a liquid amphoteric, oxyethylated sodium salt present in an amount in the range of about 0.07 to about 0.13 weight percent of the non-aqueous components of the treating composition.
Claim 16
Dependent Claim
31 words
Aqueous treating solution of claim 2 wherein the fluorochemical surfactant is present in an amount of about 0.07 to about 0.13 weight percent based on the nonaqueous components of the composition.
Claim 17
Dependent Claim
19 words
Glass fiber strand or strands having the dried residue of the aqueous sizing composition of claim 1 or 2.
Claim 18
Dependent Claim
34 words
Glass fiber strand or strands of claim 1 or 2 having an amount of the dried residue in the range of about 0.3 to about 0.8 weight percent of the strand plus the coating.
Claim 19
Dependent Claim
43 words
Glass fiber strand or strands having the dried residue of the aqueous sizing composition of claim 2 wherein the strand is comprised of glass fiber filaments having a filament diameter in the range of about 10×10 -5 inches to about 40×10 -5 inches.
Claim 20
Dependent Claim
245 words
Bulked glass fiber strand yarn produced from one or more glass fiber strands having a dried residue of an aqueous treating composition, comprising: a. starch having Brabender values equivalent to gel temperature in the range of about 65° C. to about 90° C. and maximum viscosity in the range of about 500 B.U. to about 1200 B.U. at a 9.5 dry solids percent concentration in an amount in the range of about 30 to about 60 weight percent of the nonaqueous components of the composition; b. hydrogenated nonionic lubricant in the amount in the range of about 15 to about 36 weight percent of the nonaqueous components; c. one or more waxes in an amount of about 3 to about 6 weight percent of the nonaqueous components; d. one or more nonionic emulsifiers giving a total HLB in the range of about 8 to about 12 for emulsification of the nonionic lubricant; e. a starch plasticizer in the amout of about 3 to about 6 weight percent of the nonaqueous components; f. a cationic lubricant in the amount of about 7 to about 14 weight percent of the nonaqueous components; g. one or more ester modified amino silane coupling agents in an amount of about 7 to about 15 weight percent of the nonaqueous components, and h. an amount of water sufficient to yield a total solids for the composition in the range of about 1.5 to about 4 weight percent of the aqueous composition.
Claim 21
Dependent Claim
245 words
Bulked glass fiber strand yarn produced from one or more glass fiber strands having a dried residue of an aqueous treating composition, comprising: a. starch having Brabender values equivalent to gel temperature in the range of about 65° C. to about 90° C. and maximum viscosity in the range of about 500 B.U. to about 1200 B.U. at a 9.5 dry solids percent concentration in an amount in the range of about 30 to about 60 weight percent of the nonaqueous components of the composition; b. hydrogenated nonionic lubricant in the amount in the range of about 15 to about 36 weight percent of the nonaqueous components; c. one or more waxes in an amount of about 3 to about 6 weight percent of the nonaqueous components; d. one or more nonionic emulsifiers giving a total HLB in the range of about 8 to about 12 for emulsification of the nonionic lubricant; e. a starch plasticizer in the amout of about 3 to about 6 weight percent of the nonaqueous components; f. a cationic lubricant in the amount of about 7 to about 14 weight percent of the nonaqueous components; g. one or more ester modified amino silane coupling agents in an amount of about 7 to about 15 weight percent of the nonaqueous components, and h. an amount of water sufficient to yield a total solids for the composition in the range of about 1.5 to about 4 weight percent of the aqueous composition.
Claim 22
Dependent Claim
27 words
Bulked glass fiber strand yarn of claim 19 produced from one or more glass fiber strands supplied to the bulking operation from one or more forming packages.
Claim 23
Dependent Claim
31 words
Bulked glass fiber strand yarn of claim 16 wherein one or more glass fiber strands used to produce the bulked glass fiber strand yarn is supplied from one or more bobbin.
Claim 24
Dependent Claim
20 words
Bulked glass fiber yarn of claim 19 wherein the bulking is texturizing accomplished with the use of an air jet.
Claim 25
Dependent Claim
81 words
Bulked glass fiber strand yarn of claim 16, wherein the aqueous treating composition has present: a. poly(ethylene oxide) friction reducing polymeric agent in the amount less than around 1 weight percent of the nonaqueous components of the sizing composition; b. amphoteric, cationic, and/or nonionic surfactant in an amount less than 1 weight percent of the nonaqueous components of the composition; and c. a fluorochemical surfactant in an amount less than one weight percent of the nonaqueous components of the sizing composition.
Claim 26
Dependent Claim
47 words
Bulked glass fiber strand yarn of claim 23, wherein the glass fiber strand or strands having the dried residue of the aqueous sizing composition are comprised of glass fiber filaments having a fiber diameter in the range of about 10×10 -5 inch to about 40×10 -5 inch.
Claim 27
Dependent Claim
45 words
Bulked glass fiber yarn of claim 24, wherein the aqueous treating solution of the poly(ethylene oxide) polymer has a molecular weight of around 4,000,000 and is present in an amount of about 0.14 to about 0.26 weight percent of the nonaqueous components of the composition.
Claim 28
Dependent Claim
49 words
Bulked glass fiber yarn of claim 24, wherein in the aqueous treating solution, the cationic, amphoteric and/or nonionic surfactant is a liquid amphoteric, oxyethylated sodium salt present in an amount in the range of about 0.07 to about 0.13 weight percent of the nonaqueous components of the treating composition.
Claim 29
Dependent Claim
37 words
Bulked glass fiber yarn of claim 24, wherein in the aqueous treating solution the fluorochemical surfactant is present in an amount of about 0.07 to about 0.13 weight percent based on the nonaqueous components of the composition.
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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) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |