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:
Nov. 06, 1979
Filed:
Oct. 25, 1978
Applicant:
Inventor:
William J Eldridge, Berkeley Heights, NJ (US);
Assignee:
M&T Chemicals Inc., Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521125 ; 521126 ;
Abstract
The friability exhibited by urethane-modified isocyanurate foams prepared by reacting a polyfunctional isocyanate with a polyol at a ratio of isocyanate equivalents to moles of active hydrogen greater than 6:1 is reduced to an acceptable level using alkali metal salts in combination with certain organotin compounds or stannous salts as the catalyst.