Patent US4330337A successfully refreshed from Google Patents.
US4330337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fibers with improved dispersibility in aqueous solutions and sizing composition and process for making same
Assignee: PPG Industries Ohio Inc
•
Filing: 1980-03-19
•
Granted: 1982-05-18
•
Expires: 2000-03-19
Abstract
Abstract In order to obtain a more uniform sheet-like glass fiber product, it has been discovered that the use of a treating formulation having phosphate esters of polyoxyalkylene alkyl alcohol, polyamine compound, organic acid with glass fibers gives a more uniform aqueous dispersion of glass fibers. The treating formulation can be added to the aqueous solution to which the glass fibers are to be dispersed and then the more uniform aqueous dispersion of glass fibers is conveyed to a separator to produce the more uniform sheet-like glass fiber product from the aqueous dispersion and the aqueous dispersion is recycled to disperse fresh glass fibers. Also, the treating formulation can be present by itself on glass fibers that are in a wet condition. In addition, the treating formulation can be present on glass fibers that are in a dry condition when the treating formulation is applied to the glass fibers from a sizing composition containing the treating formulation and a film-former.
Inventors
- 👤 Roy R. Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:54
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
92 words
An aqueous treating formulation for glass fibers to improve the dispersibility of glass fibers in aqueous solution, comprising: (a) phosphate esters of polyoxyethylene alkyl alcohol in an amount of at least about 45 percent by weight of the nonaqueous constituents, (b) polyamine compound having at least three active amine hydrogens per molecule in an amount in the range of about 5 to about 45 weight percent of the nonaqueous constituents, (c) a small amount of carboxylic acid, and (d) water in an amount sufficient to solubilize the alcohol, polyamine, and carboxylic acid.
Claim 2
Dependent Claim
92 words
An aqueous treating formulation for glass fibers to improve the dispersibility of glass fibers in aqueous solution, comprising: (a) phosphate esters of polyoxyethylene alkyl alcohol in an amount of at least about 45 percent by weight of the nonaqueous constituents, (b) polyamine compound having at least three active amine hydrogens per molecule in an amount in the range of about 5 to about 45 weight percent of the nonaqueous constituents, (c) a small amount of carboxylic acid, and (d) water in an amount sufficient to solubilize the alcohol, polyamine, and carboxylic acid.
Claim 3
Dependent Claim
26 words
Treating formulation of claim 1 wherein the phosphate ester of polyoxyethylene alkyl alcohol is a mixture of mono and diphosphate esters of polyoxyethylene decyl (6) alcohol.
Claim 4
Dependent Claim
43 words
The treating formulation of claim 1, wherein the polyamine is selected from the group consisting of diamines having the formula; H 2 N--(CH 2 ) n --NH 2 wherein n is an integer from about 2 to 10, triamines, tetramines, pentamines, and hexamines.
Claim 5
Dependent Claim
15 words
The aqueous treating formulation of claim 1 or claim 3, wherein the polyamine is tetraethylenepentamine.
Claim 6
Dependent Claim
34 words
The aqueous treating formulation of claim 1, wherein the small amount of carboxylic acid is present in an amount of about 1 to about 20 weight percent of the mixture on a non-aqueous basis.
Claim 7
Dependent Claim
16 words
The aqueous treating formulation of claims 1 or 5, wherein the carboxylic acid is acetic acid.
Claim 8
Dependent Claim
22 words
The aqueous treating formulation of claim 1, additionally containing a film-former selected from the group consisting of starch, polyvinyl alcohol, and gelatin.
Claim 9
Dependent Claim
14 words
The aqueous treating formulation of claim 1 or claim 7 which includes a lubricant.
Claim 10
Dependent Claim
127 words
An aqueous sizing composition for glass fibers to produce glass fibers with improved dispersibility in aqueous solution, comprising: (a) 0.1 to 1.5 percent of the aqueous composition of an amount of a mixture comprising: i at least about 45 weight percent of the mixture of phosphate esters of polyoxyethylene alkyl alcohol, ii about 5 to about 45 weight percent of the mixture of a polyamine compound having at least three active amine hydrogens per molecule, iii about 1 to about 20 weight percent of the mixture of an organic acid, (b) about 1 to about 10 weight percent of the aqueous sizing composition of a film-former selected from the group consisting of starch, polyvinyl alcohol or gelatin, and (c) about 9 to about 99 weight percent water.
Claim 11
Dependent Claim
127 words
An aqueous sizing composition for glass fibers to produce glass fibers with improved dispersibility in aqueous solution, comprising: (a) 0.1 to 1.5 percent of the aqueous composition of an amount of a mixture comprising: i at least about 45 weight percent of the mixture of phosphate esters of polyoxyethylene alkyl alcohol, ii about 5 to about 45 weight percent of the mixture of a polyamine compound having at least three active amine hydrogens per molecule, iii about 1 to about 20 weight percent of the mixture of an organic acid, (b) about 1 to about 10 weight percent of the aqueous sizing composition of a film-former selected from the group consisting of starch, polyvinyl alcohol or gelatin, and (c) about 9 to about 99 weight percent water.
Claim 12
Dependent Claim
27 words
Sizing composition of claim 9 having present a lubricant in an amount in the range of about 0.1 to about 3 weight percent of the sizing composition.
Claim 13
Dependent Claim
26 words
Sizing composition of claims 9 or 10 having present polyethylene glycol in an amount of about 0.1 to about 3 weight percent of the sizing composition.
Claim 14
Dependent Claim
26 words
Sizing composition according to claims 9 or 11 having present an emulsifier in an amount of about 0.05 to 0.5 weight percent of the sizing composition.
Claim 15
Dependent Claim
23 words
Sizing composition of claims 9 or 12 having present an organo tin bactericide in an amount of about 0.01 to about 10 milliliters.
Claim 16
Dependent Claim
24 words
The sizing composition according to claims 9 or 13 having present a wetting agent in an amount of about 1 to about 50 milliliters.
Claim 17
Dependent Claim
44 words
The aqueous sizing composition of claim 9 wherein the polyamine is selected from the group consisting of diamines having the formula; H 2 N--(CH 2 ) n --(NH 2 wherein n is an integer from about 2 to 10, triamines, tetramines, pentamines, and hexamines.
References Cited (Backward Citations)
US2702241A
Cited
US2919221A
Cited
US2723971A
Cited
US2789903A
Cited
US2802734A
Cited
US3016325A
Cited
US2962414A
Cited
US2970979A
Cited
US3066066A
Cited
US3180836A
Cited
US3424608A
Cited
US3410828A
Cited
US3586639A
Cited
US3622528A
Cited
US3600272A
Cited
US3556754A
Cited
US3692885A
Cited
US3749638A
Cited
US3932193A
Cited
US4052256A
Cited
US4233046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |