C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/4501
C08L 67/06 (2006.01) C08K 3/22 (2006.01)
Patent
CA 1038529
ABSTRACT OF THE DISCLOSURE Polyester articles having improved flame-retardant pro- perties are prepared by curing a polymerizable molding composi- tion comprised of an unsaturated polyester, a vinyl monomer that is copolymerizable with the polyester, a finely divided inorganic filler material, and a halogenated vinyl copolymer. The unsaturated polyester is halogenated although it may be mixed with non-halogenated polyester, the filler is preferably hydrated alumina, and the halogenated vinyl copolymer is selected from those that are soluble in the monomer, that are at least partially immiscible and incompatible with the poly- ester, and that have functional groups, preferably acid or epoxy functionality. Reinforcing materials, such as glass fibers, as well as other materials generally included in poly- merizable polyester compounds, can also be used.
195029
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