Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA823299A
Inventor
Okuya Eitaro
Yasunaga Hidetoshi
Ito Tokuo
Komatsu Koei
Sakaguchi Akio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JSR Corp
Original Assignee
Japan Synthetic Rubber Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA823299ApublicationCriticalpatent/CA823299A/en