Inorganic reinforced thermoplastic polyester resin composition and molded article formed therefrom
A technology of thermoplastic polyester and resin composition, which is applied in the field of inorganic reinforced polyester resin composition, to achieve the effect of high rigid appearance, removing burr treatment process, and suppressing burr
Pending Publication Date: 2022-04-12
TOYOBO MC CORP
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- Abstract
- 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 there are many shapes of molded products that are prone to burrs.
Method used
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Effect test
Embodiment
[0076] 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.
[0077] (1) Reduced viscosity of polybutylene terephthalate resin
[0078] 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)
[0079] (2) Amount of burrs generated
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Abstract
The present invention is an inorganic reinforced thermoplastic polyester resin composition having a composition in which an inorganic reinforcing material such as glass fibers is mixed, the composition having high strength and high rigidity, maintaining a good surface appearance, and having little buckling deformation and little burr generation. The present invention is characterized by containing (A) 20-60% by mass of a polybutylene terephthalate resin, (B) 5-20% by mass of an amorphous resin, (C) 30-60% by mass of an inorganic reinforcing material, (D) 0.5-10% by mass of an ethylene-glycidyl (meth) acrylate copolymer, and (E) 0.05-2% by mass of a transesterification inhibitor, and by having a melt viscosity of 0.5-1.5 kPa.s (inclusive) at 265 DEG C at a shear rate of 10 sec <-1 >.
Description
technical field [0001] The present invention relates to an inorganic reinforced polyester resin composition containing thermoplastic polyester resin and inorganic reinforcing materials such as glass fibers. Specifically, it relates to an inorganic reinforced polyester resin composition which can maintain high rigidity and high strength even if it is a thin-walled and / or elongated molded article, and the floating of the inorganic reinforcing material of the molded article, etc. leads to 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 rigidity, strength, and heat resistance of polyester resin compositions reinforced wi...
Claims
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IPC IPC(8): C08L67/02C08L69/00C08L67/00C08L23/08C08L87/00C08J5/04C08J5/00
CPCC08L23/08C08L67/02C08L69/00C08K7/14C08L23/0884C08K3/013C08K3/40
Inventor 鲇泽佳孝清水隆浩堀口悟
Owner TOYOBO MC CORP
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