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:
Nov. 05, 2002
Filed:
Dec. 14, 2000
Mark A. Peters, Mt. Pleasant, SC (US);
Bayer Corporation, Pittsburgh, PA (US);
Abstract
This invention relates to novel end-functionalized, linear, non-crosslinked polyolefins without pendant chain branched groups, and to a process for the preparation of these end-functionalized, linear, non-crosslinked polyolefins. These non-crosslinked polyolefins comprise the reaction product of (A) a cyclic olefin monomer, with (B) a chain transfer agent, in the presence of (C) at least one catalyst, preferably a ruthenium metal carbene catalyst. The polyolefins of the present invention are characterized as having a functionality as defined by vapor phase osmometry (VPO) and end group titration in the range of from 1.7 to 2.2, and correspond to a specified structure. Suitable chain transfer agents for the presently claimed polyolefins comprise the reaction product of at least one unsaturated diol and at least one alkylene oxide in relative molar ratios of from 1:1 to 1:1000. These polyolefins are prepared via ring opening metathesis polymerization (ROMP).