Polycarbonate resin composition
AssigneeMitsubishi Engineering-Plastics Corporation
InventorMinoru SOMA
Life of this patent
Estimating the term…
Abstract
A polycarbonate resin composition comprising, 100 mass parts of (A1) a polycarbonate resin that contains a polycarbonate resin having a structural unit of the following general formula (1) and (A2) a polycarbonate resin having a structural unit of the general formula (2) in a mass ratio (A1)/(A2) of 100/0 to 10/90; 3 to 20 mass parts of a phosphorus flame retardant (B); 2 to 20 mass parts of a silicone flame retardant (C); and 3 to 100 mass parts of an inorganic filler (D), wherein the phosphorus flame retardant (B) is a phosphazene compound and/or a condensed phosphate ester, [C1]
Claims15
A polycarbonate resin composition comprising, 100 mass parts of a polycarbonate resin comprising:
- a polycarbonate resin (A1) having a structural unit of formula (1) and a polycarbonate resin (A2) having a structural unit of formula (2) in a mass ratio (A1)/(A2) of 100/0 to 10/90;
- 3 to 20 mass parts of a phosphorus flame retardant (B);
- 2 to 20 mass parts of a silicone flame retardant (C);
- and
- 3 to 100 mass parts of an inorganic filler (D),
- wherein the phosphorus flame retardant (B) is a phosphazene compound and/or a condensed phosphate ester,
- wherein in formula (1), R1 represents a methyl group;
- R2 represents a hydrogen atom or a methyl group;
- X represents
- wherein, R3 and R4 represent a hydrogen atom or a methyl group;
- and Z represents a group that binds to the carbon atom C to form an optionally substituted alicyclic hydrocarbon having 6 to 12 carbons,
- wherein in formula (2), X is as defined for formula (1).
A polycarbonate resin composition comprising, 100 mass parts of a polycarbonate resin comprising:
- a polycarbonate resin (A1) having a structural unit of formula (1) and a polycarbonate resin (A2) having a structural unit of formula (2) in a mass ratio (A1)/(A2) of (less than 10)/(more than 90) to 0/100;
- 3 to 40 mass parts of a phosphorus flame retardant (B);
- 2 to 40 mass parts of a silicone flame retardant (C);
- and
- 15 to 100 mass parts of an inorganic filler (D),
- wherein the phosphorus flame retardant (B) is a condensed phosphate ester, and does not contain a phosphazene compound or contains a phosphazene compound in a content of less than 3 mass parts,
- wherein in formula (1), R′ represents a methyl group;
- R2 represents a hydrogen atom or a methyl group;
- X represents
- wherein, R3 and R4 represent a hydrogen atom or a methyl group;
- and Z represents a group that binds to the carbon atom C to form an optionally substituted alicyclic hydrocarbon having 6 to 12 carbons,
- wherein in formula (2), X is as defined for formula (1).
Dependencies are inferred from the claim text.