摘要:
An object is to increase crystallization speed, which is a drawback of polyhydroxyalkanoate, to improve processability in processing such as injection molding or blow molding and increase the speed of processing and is, in addition, to refine the crystal of polyhydroxyalkanoate to suppress a change of mechanical properties with passage of time of a resulting molded article. Disclosed herein is a polyester resin composition containing polyhydroxyalkanoate and pentaerythritol.
摘要:
An object is to increase crystallization speed, which is a drawback of polyhydroxyalkanoate, to improve processability in processing such as injection molding or blow molding and increase the speed of processing and is, in addition, to refine the crystal of polyhydroxyalkanoate to suppress a change of mechanical properties with passage of time of a resulting molded article. Disclosed herein is a polyester resin composition containing polyhydroxyalkanoate and pentaerythritol.
摘要:
Methods may include methods of producing polyester resin composition and methods of producing a polyester resin formed article that make it possible to improve thermal resistance, and to provide the polyester resin composition and the polyester resin formed article. Methods of producing a polyester resin composition may include: a step (I-a) of obtaining a polylactic acid composition (X) containing a polylactic acid (A), pentaerythritol (C), and a silicate (D); and a step (II-a) of mixing the polylactic acid composition (X) with a poly(3-hydroxyalkanoate) (B).
摘要:
An object is to improve both slow crystallization and brittleness that are drawbacks of polyhydroxyalkanoates, so that processability in mold processing, such as injection molding, is improved, processing speed is increased, and ductility is imparted to a resulting molded article. Provided is an aliphatic polyester resin composition including a polyhydroxyalkanoate (A), an ethylene-vinyl acetate copolymer resin (B), and pentaerythritol (C), wherein the ethylene-vinyl acetate copolymer resin (B) has a vinyl acetate content of 65 to 95 wt %, and the polyhydroxyalkanoate (A) and the ethylene-vinyl acetate copolymer resin (B) are compatible.
摘要:
Disclosed herein are a poly-3-hydroxyalkanoate resin composition having excellent ductility and transparency and a molded article thereof.The poly-3-hydroxyalkanoate resin composition includes: a poly-3-hydroxyalkanoate resin (A); and an ethylene-vinyl acetate copolymer resin (B) having a vinyl acetate content of 65 to 95 wt %, wherein the resin (A) and the resin (B) are miscible and a ratio of resin (A)/resin (B) is 90/10 to 55/45 (wt/wt). The molded article is produced using such a poly-3-hydroxyalkanoate resin composition.
摘要:
A polyester resin composition includes: a polylactic acid; a poly(3-hydroxyalkanoate); pentaerythritol; and a silicate. In the polyester resin composition, an amount of the polylactic acid is from 55 to 75 parts by weight, and an amount of the poly(3-hydroxyalkanoate) (B) is from 25 to 45 parts by weight, with respect to 100 parts by weight of a total amount of the polylactic acid and the poly(3-hydroxyalkanoate); an amount of the pentaerythritol is from 0.05 to 20 parts by weight with respect to 100 parts by weight of the total amount of the polylactic acid and the poly(3-hydroxyalkanoate); and an amount of the silicate is from 10 to 40 parts by weight with respect to 100 parts by weight of the total amount of the polylactic acid and the poly(3-hydroxyalkanoate).
摘要:
A resin composition, which can achieve the crystallization effect of pentaerythritol, is provided with good workability.The resin composition includes a thermoplastic resin (A) and pentaerythritol particles (B), wherein 70% or more of the pentaerythritol particles (B) have a particle diameter of 100 μm or less.
摘要:
The present invention provides a resin composition that improves slow crystallization, which is a drawback of polyhydroxyalkanoates, and is excellent in molding processability and productivity. The resin composition is an aliphatic polyester resin composition comprising a polyhydroxyalkanoate (A), an amide bond-containing compound (B), and pentaerythritol (C), wherein the amide bond-containing compound (B) is represented by any one of the following general formulas: R1—C(O)N(R2)2, R1—C(O)NH—(R3)—NHC(O)—R1, R1—NHC(O)NH—(R3)—NHC(O)NH—R1, R1—NHC(O)—R2, R1—NHC(O)—(R3)—C(O)NH—R1, R1—C(O)NH—(R3)—C(O)NH—R1, R1—NHC(O)NH—(R3)—C(O)NH—R1, and R1—NHC(O)NH—(R3)—NHC(O)—R1.
摘要:
A biodegradable polyester resin composition containing 30 to 60 parts by weight of (A) a polylactic acid, 25 to 45 parts by weight of (B) a poly-3-hydroxyalkanoate, and 5 to 25 parts by weight of (C) an aliphatic-aromatic polyester, based on 100 parts by weight in total of (A) the polylactic acid, (B) the poly-3-hydroxyalkanoate and (C) the aliphatic-aromatic polyester. The biodegradable polyester resin composition further contains 0.05 to 20 parts by weight: of (D) pentaerythritol, 10 to 40 parts by weight of (E) a silicate, and 0 to 3 parts by weight of (F) a compatibilizer having an epoxy group, relative to 100 parts by weight in total of (A) the polylactic acid, (B) the poly-3-hydroxyalkanoate, and (C) the aliphatic-aromatic polyester.
摘要:
An object of the present invention is to: improve slowness of crystallization that is a drawback of polyhydroxyalkanoate; suppress bloom of a nucleating agent or the like; and improve surface smoothness and mold transferability of an obtained molded body.The present invention provides an aliphatic polyester resin composition including polyhydroxyalkanoate (A), pentaerythritol (B), and a filler (C).