Patent search ap:("HOECHST AG") AND inv:"HANS-JOACHIM HAHN" Page 1

1.

发明授权
Plastic compositions containing stabilized polyvinyl acetals 失效
Title translation: 含有稳定的聚乙烯缩醛的塑料组合物

公开(公告)号：US2676939A

公开(公告)日：1954-04-27

申请号：US22526651

申请日：1951-05-08

Applicant: HOECHST AG

Inventor： HANS-JOACHIM HAHN , OTTO HORN

IPC: C08K5/45 , C08K5/47

CPC classification number: C08K5/45 , C08K5/47 , C08L29/14

Patent Agency Ranking