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.)
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.)
Solvay USA Inc
Original Assignee
Rhone Poulenc Specialty Chemicals Co
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
Priority claimed from US08/067,193external-prioritypatent/US5376447A/en
Priority claimed from US08/066,792external-prioritypatent/US5387641A/en
Application filed by Rhone Poulenc Specialty Chemicals CofiledCriticalRhone Poulenc Specialty Chemicals Co
Publication of CA2118825A1publicationCriticalpatent/CA2118825A1/fr