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. 23, 2010
Filed:
Aug. 01, 2003
Applicants:
John B. Letts, Carmel, IN (US);
Wayne E. Laughlin, California, KY (US);
Bruce M. Miller, Orange Park, FL (US);
Inventors:
John B. Letts, Carmel, IN (US);
Wayne E. Laughlin, California, KY (US);
Bruce M. Miller, Orange Park, FL (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of manufacturing a polyisocyanurate foam insulation board, the method comprising contacting a stream of reactants that comprise an isocyanate-reactive compound with a stream of reactants that include an isocyanate compound to form a reaction product, where the step of contacting takes place in the presence of a blowing agent and a low-boiling inert gas, and where the amount of low-boiling inert gas present at the time of the contacting is sufficient to result in frothing of the reaction product.