The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 1997
Filed:
Jul. 08, 1996
Applicant:
Inventors:
Gerhard Langstein, Kurten, DE;
Dieter Freitag, Krefeld, DE;
Michael Lanzendorfer, Pegnitz, DE;
Karin Weiss, Bindlach, DE;
Assignee:
Bayer AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09F / ; C08F / ;
U.S. Cl.
CPC ...
526189 ; 526185 ; 526209 ; 526212 ; 526216 ; 526217 ; 526220 ; 526336 ; 526339 ; 5263487 ; 502152 ; 502155 ; 502156 ;
Abstract
Polyisoolefins are obtained using the process according to the invention by polymerising isoolefins, optionally with conjugated or unconjugated dienes and/or cationically polymerisable, mono- or polyunsaturated compounds at temperatures of -100.degree. C. to +100.degree. C. and pressures of 0.1 to 100 bar in solution, in suspension or in the gas phase in the presence of initiator systems consisting of certain hydrocarbons and open-chain and/or cyclic aluminoxane compounds.