Patent search ap:("DYNAMIT NOBEL AG") AND inv:"HASS HANSJURGEN" Page 1

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发明授权
Cobalt chelate catalysts in the production of polyphenylene oxides 失效
Title translation: COBALT CHELATE催化剂生产聚苯乙烯氧化物

公开(公告)号：US3444133A

公开(公告)日：1969-05-13

申请号：US3444133D

申请日：1966-07-12

Applicant: DYNAMIT NOBEL AG

Inventor： BEHR ERICH , HASS HANSJURGEN

IPC: C08G65/44 , C08G23/18

CPC classification number: C08G65/44

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