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:
Mar. 20, 2007
Filed:
Jun. 13, 2002
Daniel J Arriola, Midland, MI (US);
Francis J. Timmers, Midland, MI (US);
David D. Devore, Midland, MI (US);
Oscar D. Redwine, Coleman, MI (US);
Daniel J Arriola, Midland, MI (US);
Francis J. Timmers, Midland, MI (US);
David D. Devore, Midland, MI (US);
Oscar D. Redwine, Coleman, MI (US);
Dow Global Technology Inc., Midland, MI (US);
Abstract
A polymer comprising units () derived from an alpha-olefin having at least 3 carbon atoms (), units () derived from divinylbenzene or Chydrocarbyl substituted derivatives thereof (), and units () derived from ethylene (), the polymer comprising at least 75 mole % of units (), from 0.01 to 5 mole % of units (), and up to 20 mole % of units (), the polymer having a branching factor BF 0.75. A process for preparing a polymer comprising units () derived from an alpha-olefin having at least 3 carbon atoms (), units () derived from divinylbenzene or Chydrocarbyl substituted derivatives thereof (), and units () derived from ethylene (), by contacting the alpha-olefin (), the divinylbenzene compound (), and ethylene () in the presence of a polymerisation catalyst under polymerisation conditions wherein the mole ratio of alpha-olefin () to divinylbenzene or Chydrocarbyl substituted derivatives thereof () is at least 10:1, the mole ratio of divinylbenzene or Chydrocarbyl substituted derivatives thereof () to ethylene () is in the range of from 1:0.1 to 1:2000, and the mole ratio of () to () is at least 4:1.