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:
May. 02, 2000
Filed:
Apr. 13, 1998
Applicant:
Inventors:
Assignee:
Targor GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526160 ; 526127 ; 526943 ; 502117 ; 502152 ; 502155 ;
Abstract
A copolymer having from 80 to 40% by weight of propylene units, based on the total polymer, and from 20 to 60% by weight of at least one comonomer, based on the total polymer. The comonomer units are prepared from ethylene or olefins having at least 4 carbon atoms and the formula R.sup.a --CH.dbd.CH--R.sup.b, where R.sup.a and R.sup.b are identical or different and are each a hydrogen atom or an alkyl radical having from 1 to 15 carbon atoms, or R.sup.a and R.sup.b, together with the carbon atoms connecting them, form a ring having 4 to 12 carbon atoms. The copolymer has a viscosity number of greater than 200 cm.sup.3 /g.