公开(公告)号：US20230227652A1

公开(公告)日：2023-07-20

申请号：US18010052

申请日：2021-06-28

Applicant: LOTTE CHEMICAL CORPORATION

Inventor： Jin Yong BAE ,  Jung Jae LEE ,  Jun Ho CHI ,  O Sung KWON

IPC: C08L85/02

CPC classification number: C08L85/02 ,  C08L2201/02

Abstract: A polyphosphonate resin composition of the present invention comprises: about 100 parts by weight of a polyphosphonate resin containing a repeating unit represented by chemical formula 1; and about 0.01 to about 0.05 parts by weight of a phosphite compound containing at least one of diphenyl hydrogen phosphite and a phosphite compound represented by chemical formula 2. The polyphosphonate resin composition has excellent heat resistance, wet heat stability, discoloration resistance, flame retardancy, and the like.

公开(公告)号：US20230227614A1

公开(公告)日：2023-07-20

申请号：US18010048

申请日：2021-06-29

Applicant: LOTTE CHEMICAL CORPORATION

Inventor： Jung Jae LEE ,  Jin Yong BAE ,  Hyuck Man KWON ,  Jun Ho CHI

IPC: C08G79/04 ,  C08K5/42 ,  C08L85/02

CPC classification number: C08G79/04 ,  C08K5/42 ,  C08L85/02 ,  C08L2201/02 ,  C08L2201/08 ,  C08L2201/10

Abstract: A polyphosphonate resin composition of the present invention comprises: approximately 100 parts by weight of a polyphosphonate resin comprising a repeating unit represented by chemical formula 1; and approximately 0.01-0.05 parts by weight of a sulfonate compound represented by chemical formula 2. The polyphosphonate resin composition has excellent thermal discoloration resistance, light discoloration resistance, flame retardancy, light transmittance and the like.