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
CA188,539A
Inventor
Hisao Yamamoto
Shigeho Inaba
Kenji Kobayashi
Yoshiaki Takebayashi
Michio Kimura
Takeshi Nakajima
Toshio Atsumi
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co LtdfiledCriticalSumitomo Chemical Co Ltd
Priority to CA188,539ApriorityCriticalpatent/CA1019734A/en
Application grantedgrantedCritical
Publication of CA1019734ApublicationCriticalpatent/CA1019734A/en