Poly- lactic acid type resin composition, that compact and poly- lactic acid type chemical compound

摘要

As for this invention, the poly- lactic acid type resin originally without impairing the rigidity which it has possessed, the compact which consists of the resin composition and the said resin composition where heat resistance (high crystal metaplasia) and transparency are improved, and the new poly- lactic acid type chemical compound which is used for the said resin composition it designates that are offered as purpose. As for the poly- lactic acid type resin composition which relates to this invention, formula (1): It possesses the region which is displayed with x1 r1 x2 , at the same time the weight average molecular weight (Mw) 5,000 - 500,000 the direct condition poly- lactic acid type chemical compound which is features that it includes (A). Furthermore, formula (1) in, X₁ and X₂, displays the O atom, the S atom or the NH basis in the respective independence, R₁ displays the basis of two value which one includes aromatic ring or aliphatic ring at least, the said hydrocarbon radical O, may include the N or S atom.