Patent ID: 9136461
Filing Date: 2015-09-15
Classification: B29C,B29D,B29K,C08G,C08J,C08K,C08L,H01L

Abstract:
1. A polymeric piezoelectric material comprising: an aliphatic polyester (A) with a weight-average molecular weight of from 50,000 to 1,000,000 and having optical activity; and a stabilizing agent (B) with a weight-average molecular weight of from 300 to 900 that comprises a stabilizing agent (B3) having, in a molecule, only one functional group selected from the group consisting of a carbodiimide group, an epoxy group and an isocyanate group, wherein the crystallinity of the material obtained by a DSC method is from 20% to 80%, and a content of the stabilizing agent (B) is from 0.01 part by mass to 10 parts by mass with respect to 100 parts by mass of the aliphatic polyester (A).