Thermoplastic resin composition
AssigneeMitsui Petrochemical Industries, Ltd.
InventorHiromi Shigemoto
Life of this patent
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Abstract
A thermoplastic resin composition having excellent transparency and a high ultraviolet transmittance and free from a reddish color is obtained from a polymer or copolymer of 4-methyl-1-pentene and a blue pigment. Preferably, the composition further comprises a black pigment and/or a red pigment.
Claims26
A thermoplastic resin composition consisting essentially of
- (A) a crystalline homopolymer of 4-methyl-1-pentene or a crystalline copolymer of 4-methyl-1-pentene and another alpha-olefin, and
- (B) 1 to 100 ppm of a blue pigment.
A thermoplastic resin composition consisting essentially of
- (A) a crystalline homopolymer of 4-methyl-1-pentene or a crystalline copolymer of 4-methyl-1-pentene and another alpha-olefin,
- (B) 1 to 100 ppm of a blue pigment, and
- (C) an effective amount of at least one additive selected from the group consisting of a heat stabilizer, a weatherability stabilizer, a lubricant, an antiblocking agent and a nucleating agent.
A thermoplastic resin composition consisting essentially of
- (A) a crystalline homopolymer of 4-methyl-1-pentene or a crystalline copolymer of 4-methyl-1-pentene and another alpha-olefin,
- (B) 1 to 100 ppm of a blue pigment, and at least one of the components (C) and (D):
- (C) 0.5 to 15 ppm of a black pigment, and
- (D) 0.01 to 5 ppm of a red pigment.
A thermoplastic resin composition consisting essentially of
- (A) a crystalline homopolymer of 4-methyl-1-pentene or a crystalline copolymer of 4-methyl-1-pentene and another alpha-olefin,
- (B) 1 to 100 ppm of a blue pigment, and at least one of the components (C) and (D):
- (C) 0.5 to 15 ppm of a black pigment,
- (D) 0.01 to 5 ppm of a red pigment, and
- (E) an effective amount of at least one additive selected from the group consisting of a heat stabilizer, a weatherability stabilizer, a lubricant, an antiblocking agent and a nucleating agent.
A thermoplastic resin composition consisting essentially of
- (A) a crystalline homopolymer of 4-methyl-1-pentene or a copolymer of 4-methyl-1-pentene and another alpha-olefin and
- (B) a blue pigment and having a Hunter's L value, a value and b value of 50 to 95, -3 to 3 and -15 to 10, respectively.
A thermoplastic resin composition consisting essentially of
- (A) a crystalline homopolymer of 4-methyl-1-pentene or a copolymer of 4-methyl-1-pentene and another alpha-olefin,
- (B) a blue pigment, and
- (C) an effective amount of at least one additive selected from the group consisting of a heat stabilizer, a weatherability stabilizer, a lubricant, an antiblocking agent and a nucleating agent and having a Hunter's L value, a value and b value of 50 to 95, -3 to 3 and -15 to 10, respectively.
A clear, light transparent molded article of poly(4-methyl-1-pentene) having high ultraviolet transmittance and being free of a reddish color, said molded article being formed from a moldable composition consisting essentially of
- (A) a crystalline homopolymer of 4-methyl-1-pentene or a crystalline copolymer of at least 85 mole percent 4-methyl-1-pentene with another alpha-olefin having from 2 to 20 carbon atoms;
- (B) 1 to 100 ppm of a blue pigment;
- (C) up to 15 ppm of a black pigment;
- (D) up to 5 ppm of a red pigment;
- and
- (E) an effective amount of at least one additive selected from the group consisting of heat stabilizers, weatherability stabilizers, lubricants, antiblocking agents and nucleating agents.
A light transparent thermoplastic resin composition comprising
- (A) a crystalline homopolymer of 4-methyl-1-pentene or a crystalline copolymer of 4-methyl-1-pentene and another alpha-olefin, and
- (B) 1 to 100 ppm of a blue pigment, and (C) having a light transmittance of 60 to 99.5% and (D) being substantially free from an olefin oligomer of .alpha.-olefin having 8 to 12 carbon atoms.
A light transparent thermoplastic resin composition (1) comprising (A) a crystalline homopolymer of 4-methyl-1-pentene or a copolymer of 4-methyl-1-pentene and another alpha-olefin and (B) a blue pigment, (2) having (C) a Hunter's L value, a value and b value of 50 to 95, -3 to 3, -15 to 10, respectively and (D) a light transmittance of 60 to 99.5%, and (3) being substantially free from an olefin oligomer of .alpha.-olefin having 8 to 12 carbon atoms.
A clear, light transparent molded article of poly(4-methyl-1-pentene) having high ultraviolet transmittance and being free of a reddish color, said molded article being formed from a moldable composition consisting essentially of
- (A) a crystalline homopolymer of 4-methyl-1-pentene or a crystalline copolymer of at least 85 mole percent 4-methyl-1-pentene with another alpha-olefin having from 2 to 20 carbon atoms;
- (B) a blue pigment, and
- (C) an effective amount of at least one of additives selected from the group consisting of heat stabilizers, weatherability stabilizers, lubricants, antiblocking agents and nucleating agents, and having a Hunter's L value, a value and b value of 50 to 95, -3 to 3 and -15 to 10, respectively.
Dependencies are inferred from the claim text.