Stock material or miscellaneous articles – Composite – Of polyester
Reexamination Certificate
2005-02-22
2005-02-22
Acquah, Samuel A. (Department: 1711)
Stock material or miscellaneous articles
Composite
Of polyester
C528S295500, C528S302000, C528S303000, C528S306000, C528S307000, C528S308000, C525S438000, C525S440030, C525S445000, C525S168000, C524S081000
Reexamination Certificate
active
06858314
ABSTRACT:
A brominated unsaturated polyester resin containing a hydroxyl value of about 35 or less and a hydroxyl acid molar ratio of about 2:1 to about 1:4. The brominated unsaturated polyester resin is prepared from a polyfunctional carboxylic acid, a monocarboxylic acid, and a polyfunctional glycol or alcohol that contains bromine under polyester esterification reaction conditions. The brominated unsaturated polyester resin can be incorporated into a resin composition that also contains vinyl monomer. The invention is also directed to a method of making a brominated unsaturated polyester resin, and to castings, coatings, and laminate panels containing cured brominated unsaturated polyester resin compositions of the invention.
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D.P. Miller, “Neopentyl Bromide Based Flame Regardants for Unsaturated Polyester Resins and Other Applications” Daw Chemical USA, pp. 126-128.
Dennis P. Miller, et al., “Combining Dibromoneopentyl Gycol and Dicyclopentadiene to Optimize Flame Retardant Polyester Resin Properties” 35thAnnual Technical Conference, 1980, Section 10-C, pp. 1-4.
Acquah Samuel A.
Ashland Inc.
Connolly Bove & Lodge & Hutz LLP
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