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US 9,957,377 B2Granted
Polyphenylene sulfide resin composition, production method thereof and reflector
AssigneesToray Industries, Inc., Koito Manufacturing Co., Ltd.
InventorsNaoya Ouchiyama, Kei Saitoh, Hideyuki Umetsu, Hideki Matsumoto, Hidetaka Anma, Daisuke Mochizuki, Hiroaki Hara, Masayuki Kobayashi
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Abstract
A polyphenylene sulfide resin composition has excellent heat resistance, flowability and lightweight property as well as surface smoothness and impact resistance. The polyphenylene sulfide resin composition includes 1 to 30 parts by weight of a mica (b) having an aspect ratio of not less than 80, relative to 100 parts by weight of a polyphenylene sulfide resin (a).
Claims10
A polyphenylene sulfide resin composition comprising:
- 1 to 30 parts by weight of a mica (b) having an aspect ratio of not less than 80, relative to 100 parts by weight of a polyphenylene sulfide resin (a), and having a volume average particle diameter of not greater than 30 μm,
- wherein the polyphenylene sulfide resin (a) has a non-Newtonian index N calculated by Equation (1) and satisfies 1.25≤N≤1.40 under a condition of an orifice L/D=10 at 320° C.:
- SR=K·SSN (1)
- (wherein L represents length of an orifice;
- D represents diameter of the orifice;
- N represents the non-Newtonian index;
- SR represents a shear rate (1/second);
- SS represents a shear stress (dyne/cm2);
- and K represents a constant).
6 more elements
Dependencies are inferred from the claim text.