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:
Dec. 09, 1997
Filed:
Jul. 15, 1996
Applicant:
Inventors:
Nigel Barksby, Dunbar, WV (US);
Bruce D Lawrey, Charleston, WV (US);
Susan M Clift, Lansdale, PA (US);
Assignee:
ARCO Chemical Technology, L.P., Greenville, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C07C / ;
U.S. Cl.
CPC ...
528 64 ; 528 59 ; 528 61 ; 528 65 ; 528 66 ; 528 75 ; 528 76 ; 528 85 ; 560 25 ; 560 26 ; 560330 ; 560360 ;
Abstract
Elastomers with improved physical properties, particularly hardness and rebound, may be prepared by the diamine chain extension or moisture cure of low isocyanate group content, toluene diisocyanate-based prepolymers prepared from a polyol component comprising a high molecular weight, low unsaturation polyoxypropylene diol and a low molecular weight diol. The elastomers are useful for applications such as rollers and other applications where hardness and rebound are important.