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:
Jun. 09, 2015
Filed:
Feb. 20, 2012
David J. Williams, East Amherst, NY (US);
Mary C. Bogdan, Buffalo, NY (US);
Clifford P. Gittere, Amherst, NY (US);
Andrew J. Poss, Kenmore, NY (US);
David J. Williams, East Amherst, NY (US);
Mary C. Bogdan, Buffalo, NY (US);
Clifford P. Gittere, Amherst, NY (US);
Andrew J. Poss, Kenmore, NY (US);
HONEYWELL INTERNATIONAL INC., Morristown, NJ (US);
Abstract
The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to closed-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a non-amine catalyst used alone or in combination with an amine catalyst.