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:
Aug. 31, 2021
Filed:
Jan. 15, 2019
Applicant:
Inoac Usa, Inc., Troy, MI (US);
Inventors:
Raymond Bertram, Raritan, NJ (US);
Guy L. Crocco, Clarkston, MI (US);
Assignee:
Inoac USA, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/08 (2006.01); C08G 18/20 (2006.01); C08G 18/32 (2006.01); C08G 18/10 (2006.01);
U.S. Cl.
CPC ...
C08G 18/14 (2013.01); C08G 18/10 (2013.01); C08G 18/2063 (2013.01); C08G 18/3221 (2013.01); C08G 2110/0083 (2021.01);
Abstract
A direct and simple method to control cell size in a polyurethane foam is disclosed. Polyurethane foam is made by mixing prepolymer with foam-forming ingredients comprising isocyanate and water which react to give carbon dioxide. The reaction is driven by a catalyst and results in a foam structure with cells of a particular size. Using the addition of a pre-determined amount of mineral oil, the coalescence of neighboring cells of the foam structure may be advantageously controlled to form a cell structure with a desired average cell size.