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. 17, 1985
Filed:
Mar. 21, 1984
Applicant:
Inventors:
Kenneth B White, Lisle, IL (US);
William J Largent, Darien, IL (US);
Assignee:
Akzona Incorporated, Enka, NC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
521105 ; 521902 ; 521172 ; 521177 ;
Abstract
A method for the manufacture of polyisocyanurate foams which comprises blending a 'B' side with an 'A' side that includes an isocyanate. The 'B' side comprises a polyester polyol, an amine/quaternary ammonium borate ester blend, a surfactant, a blowing agent, and a metal catalyst in amounts of up to 20% by weight of the total weight of the 'B' side. The 'B' side remains a homogeneous liquid for at least one day without the need for agitation and the foam formed by this method has a friability not exceeding 30%.