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:
Sep. 13, 1977
Filed:
Jul. 14, 1975
Applicant:
Inventors:
Arthur E Gurgiolo, Lake Jackson, TX (US);
Llewellyn D Booth, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ;
Abstract
Polyhalogenated polyols are prepared having the formula (Q)--N(R).sub.b --(CH.sub.2).sub.c N(Q)].sub.d --.sub.2).sub.c OH wherein Q is 3-polyhalophenoxy-2-hydroxy-propyl; R is --CH.sub.2).sub.c OH or --CH.sub.2).sub.c CH.sub.3 ; a is 1 or 2; b is 0 or 1; c is 1-4 and d is 0 or 1 with the proviso that when a is 2, b is 0 and halo is bromine or chlorine. These polyols such as N,N-bis[3-(2',4'-dibromophenoxy)-2-hydroxypropyl]ethanolamine are used to make fire retardant rigid polyurethane foams using isocyanates, blowing agents, and the like.