Inorganic reinforced thermoplastic polyester resin composition
A technology of thermoplastic polyester and resin composition, which is applied in the field of inorganic reinforced polyester resin composition, and can solve the problems of many shapes of molded products
Active Publication Date: 2020-10-20
TOYOBO MC CORP
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- Description
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- Application Information
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Problems solved by technology
Therefore, the filling pressure of the resin tends to be further increased, and the shape of the molded product that is prone to burrs appears more
Method used
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Examples
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Embodiment
[0087] Hereinafter, although an Example demonstrates this invention more concretely, this invention is not limited to these Examples. In addition, the measured value described in an Example is measured by the following method.
[0088] (1) Reduced viscosity of polyester resin
[0089] 0.1 g of the sample was dissolved in 25 ml of a mixed solvent of phenol / tetrachloroethane (mass ratio 6 / 4), and measured at 30° C. with an Ubbelohde viscosity tube. (unit: dl / g)
[0090] (2) Amount of burrs generated
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Abstract
The present invention is an inorganic reinforced thermoplastic polyester resin composition which does not lose the characteristics of a polyester resin and maintains good surface appearance, while having high strength and high stiffness at the same time in a composition wherein an inorganic reinforcing material such as glass fiber is blended, and which is suppressed in warping deformation, while being greatly suppressed in the formation of burrs. This inorganic reinforced thermoplastic polyester resin composition contains (A) from 15% by mass to 30% by mass (inclusive) of a polybutylene terephthalate resin, (B) 1% by mass or more but less than 15% by mass of at least one polyester resin other than polybutylene terephthalate resins, (C) from 5% by mass to 20% by mass (inclusive) of an amorphous resin, (D) from 50% by mass to 70% by mass (inclusive) of an inorganic reinforcing material, (E) from 0.1% by mass to 3% by mass (inclusive) of a glycidyl group-containing styrene copolymer, (F)from 0.5% by mass to 2% by mass (inclusive) of an ethylene-glycidyl (meth)acrylate copolymer and (G) from 0.05% by mass to 2% by mass (inclusive) of a transesterification inhibitor.
Description
technical field [0001] The present invention relates to an inorganic reinforced polyester resin composition containing a thermoplastic polyester resin and an inorganic reinforcing material such as glass fibers. Specifically, it relates to an inorganic-reinforced polyester resin composition that can maintain high rigidity and high strength even if it is a thin-walled and / or elongated molded product, and the inorganic reinforcement of the molded product can be caused by floating, etc. A molded product with few appearance defects, good surface gloss, less warping deformation, and very few burrs. Background technique [0002] In general, polyester resins are excellent in mechanical properties, heat resistance, chemical resistance, and the like, and are widely used in automobile parts, electric and / or electronic parts, household miscellaneous goods, and the like. Among them, it is known that the rigidity, strength, and heat resistance of polyester resin compositions reinforced w...
Claims
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IPC IPC(8): C08J5/04C08K3/013C08L67/00
CPCC08L67/02C08L2205/025C08L2205/035C08G63/183C08J5/043C08J2367/02C08J2469/00C08J2423/08C08J2425/14C08J2467/02C08J2467/03C08K7/14C08L23/0884C08L25/14C08L69/00C08J2433/08
Inventor 下拂卓也神谷元畅清水隆浩
Owner TOYOBO MC CORP
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