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:
Jan. 19, 2021
Filed:
Nov. 25, 2019
Applicant:
Johns Manville, Denver, CO (US);
Inventors:
Assignee:
Johns Manville, Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/14 (2006.01); C08J 9/00 (2006.01); E04B 1/94 (2006.01); C08G 18/08 (2006.01); C08G 18/76 (2006.01); C08G 18/42 (2006.01); C08K 5/5333 (2006.01); C08K 5/098 (2006.01); C08K 5/521 (2006.01); E04B 1/80 (2006.01); E04D 11/02 (2006.01); E04D 3/35 (2006.01); C08G 18/09 (2006.01); C08G 18/22 (2006.01); E04D 13/16 (2006.01); C08G 18/66 (2006.01); C08J 9/12 (2006.01); C08G 18/38 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08J 9/0038 (2013.01); C08G 18/092 (2013.01); C08G 18/14 (2013.01); C08G 18/222 (2013.01); C08G 18/225 (2013.01); C08G 18/3878 (2013.01); C08G 18/42 (2013.01); C08G 18/4202 (2013.01); C08G 18/4208 (2013.01); C08G 18/6633 (2013.01); C08G 18/7664 (2013.01); C08J 9/0023 (2013.01); C08J 9/125 (2013.01); C08J 9/141 (2013.01); C08J 9/146 (2013.01); C08K 5/098 (2013.01); C08K 5/521 (2013.01); C08K 5/5333 (2013.01); E04B 1/80 (2013.01); E04B 1/946 (2013.01); E04D 3/351 (2013.01); E04D 11/02 (2013.01); E04D 13/1643 (2013.01); C08G 2101/005 (2013.01); C08G 2101/0025 (2013.01); C08G 2101/0041 (2013.01); C08G 2105/02 (2013.01); C08J 2203/14 (2013.01); C08J 2205/044 (2013.01); C08J 2205/052 (2013.01); C08J 2205/10 (2013.01); C08J 2375/04 (2013.01); C08J 2375/06 (2013.01); C08J 2379/04 (2013.01); E04B 1/942 (2013.01);
Abstract
A polyisocyanurate foam insulation product includes polyisocyanurate foam produced from reacting an isocyanate and a polyol blend having a functionality of at least 2.2. The isocyanate and the polyol blend are reacted so that the polyisocyanurate foam has an isocyanate index equivalent with or greater than 300. The polyisocyanurate foam includes a fire retardant and includes between 0.02 and 0.45 weight percent of a zinc salt compound. The foam insulation board exhibits a flame spread of no greater than 25 and a smoke index of no greater than 50 when exposed to flame conditions in accordance with an ASTM E-84 test.