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. 05, 1989
Filed:
Oct. 30, 1987
Applicant:
Inventors:
George P Speranza, Austin, TX (US);
Michael E Brennan, Austin, TX (US);
Jiang-Jen Lin, Round Rock, TX (US);
Assignee:
ARCO Chemical Technology, Inc., Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564475 ; 564476 ;
Abstract
Novel amino polyols made by alkoxylating ethylene glycol diamine bottoms products, such as triethylene glycol diamine bottoms products, and tetraethylene glycol diamine bottoms products are described. For example, these bottoms products, alone or together, maybe propoxylated in a non-catalytic reaction to give amino polyols that are useful in producing rigid polyurethane foams. The resultant foams have better K-factors and a higher percentage of closed cells than comparable foams made with conventional amino polyols.