US4137209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber size composition
Assignee: Owens Corning
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Filing: 1977-11-14
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Granted: 1979-01-30
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Expires: 1997-11-14
Abstract
Abstract A glass fiber size composition comprising a film-forming polymer, a thixotropic gelling agent, a heat-curable polyurethane latex and an organo silane coupling agent is disclosed. When a coloring agent is incorporated into the glass fiber size composition, the resulting sized glass fibers exhibit excellent color intensity.
Inventors
- 👤 Robert Wong
- 👤 Martin C. Flautt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:13
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/32; C03C25/326; C03C25/465; C03C25/475; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31598; Y10T428/31601; Y10T428/31609; Y10T428/31612; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
36 words
An aqueous size composition for use in the treatment of glass fibers comprising (1) a heat-curable polyurethane latex (2) a film-forming polymer (3) a thixotropic gelling agent and, (4) at least one organo silane coupling agent.
Claim 2
Dependent Claim
36 words
An aqueous size composition for use in the treatment of glass fibers comprising (1) a heat-curable polyurethane latex (2) a film-forming polymer (3) a thixotropic gelling agent and, (4) at least one organo silane coupling agent.
Claim 3
Dependent Claim
13 words
A size composition as defined in claim 1 which includes a coloring agent.
Claim 4
Dependent Claim
62 words
A size composition as defined in claim 1 wherein the composition contains from about 2 to about 15% by weight of heat-curable polyurethane latex, from about 5 to about 20% by weight of the film-forming polymer, from about 1 to about 5% by weight of the thixotropic gelling agent and from about 0.2 to about 1.5% by weight of the coupling agent.
Claim 5
Dependent Claim
53 words
At least one glass fiber at least a portion of its surface having a thin film coating thereon, said coating being produced by removing water from an aqueous composition comprising (1) a heat-curable polyurethane latex, (2) a film-forming polymer (3) a thixotropic gelling agent and, (4) at least one organo silane coupling agent.
Claim 6
Dependent Claim
53 words
At least one glass fiber at least a portion of its surface having a thin film coating thereon, said coating being produced by removing water from an aqueous composition comprising (1) a heat-curable polyurethane latex, (2) a film-forming polymer (3) a thixotropic gelling agent and, (4) at least one organo silane coupling agent.
Claim 7
Dependent Claim
24 words
The glass fiber of claim 4 in which said composition includes a coloring agent to impart color to glass fibers treated with said composition.
Claim 8
Dependent Claim
26 words
The glass fiber of claim 4 in which the film forming polymer is selected from the group consisting of polyvinyl acrylates, polyvinyl alcohols and polyvinyl acetates.
Claim 9
Dependent Claim
61 words
Glass fiber of claim 4 in which the composition contains from about 2 to about 15% by weight of the heat-curable polyurethane latex, from about 5 to about 20% by weight of the film-forming polymer, from about 1 to about 5% by weight of the thixotropic gelling agent and from about 0.2 to about 1.5% by weight of the coupling agent.
Claim 10
Independent Claim
47 words
A method for imparting color to glass fibers which comprises coating the glass fibers with an aqueous size composition comprising (1) a heat-curable polyurethane latex (2) a film-forming polymer (3) a thixotropic gelling agent (4) at least one organo silane coupling agent and, (5) a coloring agent.
Claim 11
Independent Claim
47 words
A method for imparting color to glass fibers which comprises coating the glass fibers with an aqueous size composition comprising (1) a heat-curable polyurethane latex (2) a film-forming polymer (3) a thixotropic gelling agent (4) at least one organo silane coupling agent and, (5) a coloring agent.
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) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |