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:
Jul. 17, 2001
Filed:
May. 13, 1998
Applicant:
Inventors:
James C. W. Chien, Amherst, MA (US);
Marvin D. Rausch, Amherst, MA (US);
Assignee:
The Academy of Applied Science, Concord, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 4/64 ; C08F 4/642 ; C08F 1/006 ;
U.S. Cl.
CPC ...
C08F 4/64 ; C08F 4/642 ; C08F 1/006 ;
Abstract
Disclosed are a thermoplastic elastomeric polypropylene (and other olefin homopolymerized polymers) made using a metallocene catalyst and a single olefin monomer, and a method of preparing the same to produce a chain of alternating stereo regular crystallizable segments and stereo-irregular non-crystallizable polymerized segments, the former acting as physical crosslinks between tee non-crystallizable segments to form a thermoplastic elastomeric material having good elastomeric properties.