Patent US4616062A successfully refreshed from Google Patents.
US4616062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester emulsion
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1985-10-21
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Granted: 1986-10-07
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Expires: 2005-10-21
Abstract
Abstract A cure stable polyester emulsion for use in an aqueous size composition has been developed for glass fibers produced for molded products having appearance surfaces known as Class A surfaces. The size contains a cure stable polyester emulsion and a static insensitive lubricant system. The resulting coated glass fibers are especially useful in improving processability and product uniformity of SMC applications.
Inventors
- 👤 Robert C. Brannon
- 👤 David A. Coleman
- 👤 David G. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:49
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/07; C08K; C08K5/00; C08K5/04; C08K5/06; C08J2367/00; C08J2367/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
16 words
Cure stable polyester emulsion consisting essentially of an unsaturated polyester resin emulsified with nonylphenoxypoly (ethyleneoxy) ethanol.
Claim 2
Dependent Claim
16 words
Cure stable polyester emulsion consisting essentially of an unsaturated polyester resin emulsified with nonylphenoxypoly (ethyleneoxy) ethanol.
Claim 3
Dependent Claim
25 words
Polyester emulsion according to claim 1 having an amount of the ethanol ranging from 2 to 20 weight percent based on the weight of resin.
Claim 4
Dependent Claim
25 words
Polyester emulsion according to claim 1 having an amount of the ethanol ranging from 2 to 5 weight percent based on the weight of resin.
Claim 5
Dependent Claim
22 words
Polyester emulsion according to claim 1 wherein the polyester resin comprises ethylenically unsaturated polyester and ethylenically unsaturated monomer copolymerizable with the polyester.
Claim 6
Dependent Claim
24 words
Polyester emulsion according to claim 4 wherein the unsaturated polyester is prepared from ethylenically unsaturated dicarboxylic acid or anhydride and glycol or corresponding epoxide.
Claim 7
Dependent Claim
21 words
Polyester emulsion according to claim 4 wherein the polyester resin is prepared from phthalic anhydride, maleic anhydride, propylene glycol and styrene.
References Cited (Backward Citations)
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Cited
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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) | 1989-10-06 | 1990-04-07 | 1990-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-06 | 1994-04-07 | 1994-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-06 | 1998-04-07 | 1998-10-07 | $7700.00 | Window Closed / Lapsed |