Reinforced intercrystalline thermoplastic polyester compositions
AssigneeGeneral Electric Company
InventorsVisvaldis Abolins, Fred F. Holub
Life of this patent
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Abstract
Intercrystalline normally rigid thermoplastic compositions comprising a combination of (a) very rapidly crystallizable polyester, (b) a crystalline or amorphous polymer and (c) a reinforcing filler for the combination. There are also provided such compositions including flame retardant agents.
Claims27
A reinforced intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination,
- (a) at least one high molecular weight normally crystalline polyester resin which very rapidly crystallizes from the melt,
- (b) at least one high molecular weight normally crystalline, normally amorphous or normally partially crystalline and partially amorphous polymer in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b);
- that is selected from the group consisting of:
- polyethylene,
- poly(methylpentene),
- a copolymer of ethylene and ethyl acrylate, poly(vinyl chloride),
- a copolymer of vinyl chloride and vinyl acetate, natural rubber,
- a rubbery copolymer of butadiene and acrylonitrile,
- a polyamide,
- a polyimide,
- a polyorganosiloxane,
- a copolymer of a polyorganosiloxane and a vinyl aromatic monomer, an acrylic monomer or an aromatic carbonate, and
- a siloxane-nitrogen copolymer containing amido, amideimido or imide groups;
- and
- (c) a reinforcing amount of a reinforcing filler for said combination.
A reinforced intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination;
- (a) a high molecular weight normally crystalline poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms;
- (b) a high molecular weight polyethylene, in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b);
- and
- (c) reinforcing filamentous glass, in an amount of from about 1 to 80 percent by weight based on the weight of the combination.
A reinforced intercrystalline normally rigid thermoplastic molding composition comprising, in combination,
- (a) a high molecular weight normally crystalline poly-(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms;
- (b) a high molecular weight polyamide, in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b);
- and
- (c) reinforcing filamentous glass, in an amount of from about 1 to about 80 percent by weight based on the weight of the combination.
A reinforcing intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination,
- (a) a high molecular weight normally crystalline poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms;
- (b) a high molecular weight copolymer of ethylene and butene-1, in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b);
- and
- (c) reinforcing filamentous glass, in an amount of from about 1 to about 80 percent by weight based on the weight of the combination.
A flame retardant reinforced intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination,
- (a) a high molecular weight normally crystalline normally flammable poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms;
- (b) a high molecular weight normally solid polyethylene in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b);
- (c) reinforcing filamentous glass, in an amount of from about 1% to about 80% by weight based on the weight of glass and components (a) and (b);
- and
- (d) a flame retardant additive, in an amount of from 0.5 to 50 parts by weight per 100 parts of components (a) and (b).
Dependencies are inferred from the claim text.