US4616062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester emulsion
Assignee: Owens Corning Fiberglas Technology Inc
•
Filing: 1985-10-21
•
Granted: 1986-10-07
•
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 06:44
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)
US4006272A
Cited
US4455400A
Cited
US4294748A
Cited
US4294734A
Cited
US4360634A
Cited
US4464524A
Cited
US4546142A
Cited
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 |