HIGH-DENSITY AND BRANCHED STRUCTURE TYPE ALIPHATIC POLYESTER FOR PLASTICIZER OF PVC AND FLEXIBLE PVC BLEND CONTAINING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a high-density and branched structure type aliphatic polyester compound for a plasticizer of polyvinyl chloride(PVC) solving a problem of disruption of endocrine system of the human body and ecocide caused by bleeding the plasticizer and having excellent compatibility with PVC and plasticizing performances enough to impart sufficient flexibility to PVC.;SOLUTION: This high-density and branched structure type aliphatic polyester compound for the plasticizer of PVC is a compound formed by a self- condensation polymerization of a monomer having one carboxy functional group and two hydroxy functional groups. The high-density and branched structure type aliphatic polyester compound is excellent in compatibility with PVC and absolutely free from bleeding, which is different from liquid low-molecular plasticizers made of existing phthalate-based compounds, etc., to solve the problem of disruption of endocrine system of the human body and ecocide caused by bleeding the plasticizer and excellent in plasticizing performances to impart sufficient flexibility to PVC.;COPYRIGHT: (C)2002,JPO