US4052257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing glass mats
Assignee: Owens Corning
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Filing: 1976-01-08
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Granted: 1977-10-04
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Expires: 1996-01-08
Abstract
Abstract A size and dispersion system for, and a method for, the production of glass mats, the size comprising a methyl trimethoxysilane and a malto-dextrin, the dispersion system comprising a nonionic guar gum and an isostearic amide.
Inventors
- 👤 Homer G. Hill
- 👤 Kenneth L. Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:16
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H5/1254; D21H13/00; D21H13/36; D21H13/38; D21H13/40; D21H23/00; D21H23/02; D21H23/04; D21H23/06; D21H23/08; D21H23/10; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/252; Y10T442/00; Y10T442/60; Y10T442/603; Y10T442/604
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
A method of producing a glass mat which comprises: a. dispersing a plurality of glass fibers in an aqueous composition to form a dispersion, said glass fibers having at least a portion of their surface in contact with an effective amount of a size comprising a methyl trimethoxysilane and a malto-dextrin, said dispersion comprising an effective amount of a nonionic guar gum and an isostearic amide; b. withdrawing water from said dispersion to produce a glass mat; and, c. recovering said glass mat.
Claim 2
Independent Claim
83 words
A method of producing a glass mat which comprises: a. dispersing a plurality of glass fibers in an aqueous composition to form a dispersion, said glass fibers having at least a portion of their surface in contact with an effective amount of a size comprising a methyl trimethoxysilane and a malto-dextrin, said dispersion comprising an effective amount of a nonionic guar gum and an isostearic amide; b. withdrawing water from said dispersion to produce a glass mat; and, c. recovering said glass mat.
Claim 3
Dependent Claim
13 words
The method of claim 1 in which said size comprises a polyvinyl acetate.
Claim 4
Dependent Claim
14 words
The method of claim 1 in which said isostearic amide is isostearic dimethanol amide.
Claim 5
Dependent Claim
56 words
A composition comprising a plurality of glass fibers at least a portion of the surfaces of said fibers being in contact with an effective amount of a size comprising a methyl trimethoxysilane and a malto-dextrin, said fibers being dispersed in an aqueous system comprising an effective amount of a nonionic guar gum and an isostearic amide.
Claim 6
Dependent Claim
56 words
A composition comprising a plurality of glass fibers at least a portion of the surfaces of said fibers being in contact with an effective amount of a size comprising a methyl trimethoxysilane and a malto-dextrin, said fibers being dispersed in an aqueous system comprising an effective amount of a nonionic guar gum and an isostearic amide.
Claim 7
Dependent Claim
13 words
The composition of claim 4 in which said size comprises a polyvinyl acetate.
Claim 8
Dependent Claim
14 words
The composition of claim 4 in whch said isostearic amide is isostearic dimethanol amide.
Claim 9
Dependent Claim
12 words
The composition of claim 1 in which said size comprises polyvinyl acetate.
Claim 10
Dependent Claim
52 words
The composition of claim 4 in which said size is the residue from an aqueous composite comprising said methyl trimethoxysilane in an amount within the range of about 0.005 to about 0.5 weight percent and said malto-dextrin in an amount within the range of from about 5 to about 20 weight percent.
Claim 11
Dependent Claim
53 words
The method of claim 1 in which said size is the residue from an aqueous composite comprising said methyl trimethoxysilane in an amount within the range of from about 0.005 to about 0.5 weight percent and said malto-dextrin in an amount within the range of from about 5 to about 20 weight percent.
Claim 12
Dependent Claim
33 words
The method of claim 7 in which said methyl trimethoxysilane is present in an amount of about 0.1 weight percent and said malto-dextrin is present in an amount of about 10 weight percent.
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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |