Reinforced flame-retardant polyester resin compositions
AssigneeGeneral Electric Company
InventorsTakahiro Yokoshima, Takuro Kitamura
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Abstract
Resin compositions comprising (A) a polyester, (B) a flame retardant, (C) an antimony compound, and (D) a filler selected from the group comprising magnesium silicate and mixtures of magnesium silicate with calcium metasilicate are disclosed. The disclosed compositions exhibit superior heat resistance, flame retardance, arc resistance and tracking resistance.
Claims17
A resin composition comprising (A) a polyester, (B) a flame retardant, (C) antimony oxide or an antimonate and (D) a filler, which filler includes plate-like magnesium silicate filler having an average particle size of 1.8 .mu.m or less, and acicular calcium metasilicate filler.
A resin composition comprising
- (A) a polyester;
- (B) a flame retardant;
- (C) an antimony compound;
- and
- (D) a filler comprising plate-like magnesium silicate filler having an average particle size of 1.8 .mu.m or less and acicular calcium metasilicate filler.
A resin composition comprising
- (A) from about 20-75 parts by weight of a polyester;
- (B) from about 5-20 parts by weight of a flame retardant;
- (C) from about 2-6 parts by weight of an antimony compound;
- and
- (D) from about 15 to 75 parts by weight of a filler, wherein said filler comprises plate-like magnesium silicate filler having an average particle size of 1.8 .mu.m or less and acicular calcium metasilicate filler.
Dependencies are inferred from the claim text.