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:
Dec. 27, 2016
Filed:
Jun. 09, 2014
Applicant:
Johns Manville, Denver, CO (US);
Inventors:
Assignee:
Johns Manville, Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04D 11/02 (2006.01); E04B 2/00 (2006.01); E04D 12/00 (2006.01); C08G 18/79 (2006.01); C08J 9/00 (2006.01); E04D 13/16 (2006.01); C08J 9/14 (2006.01); C08G 18/28 (2006.01); C08G 18/42 (2006.01); B32B 5/24 (2006.01); B32B 11/04 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
E04D 11/02 (2013.01); B32B 5/245 (2013.01); B32B 11/046 (2013.01); B32B 27/304 (2013.01); B32B 27/32 (2013.01); C08G 18/288 (2013.01); C08G 18/42 (2013.01); C08G 18/791 (2013.01); C08J 9/0023 (2013.01); C08J 9/0038 (2013.01); C08J 9/0061 (2013.01); C08J 9/0095 (2013.01); C08J 9/141 (2013.01); E04C 2/44 (2013.01); E04D 12/002 (2013.01); E04D 13/16 (2013.01); B32B 2262/101 (2013.01); B32B 2307/304 (2013.01); B32B 2307/3065 (2013.01); B32B 2307/558 (2013.01); B32B 2307/7265 (2013.01); B32B 2419/06 (2013.01); C08G 2101/00 (2013.01); C08G 2105/02 (2013.01); C08G 2330/00 (2013.01); C08J 2203/14 (2013.01); C08J 2207/00 (2013.01); C08J 2375/06 (2013.01); C08J 2375/08 (2013.01); C08J 2483/12 (2013.01); Y10T 428/24999 (2015.04); Y10T 428/249953 (2015.04); Y10T 428/249987 (2015.04); Y10T 428/249993 (2015.04);
Abstract
According to one embodiment, a halogen free roof system is described. The roof system includes a structural deck that is positioned above joists or other support members. Polyisocyanurate foam insulation is positioned atop the structural deck. The polyisocyanurate foam insulation has an isocyanate index greater than 200 and includes a polyisocyanurate core having a halogen free fire retardant. A water proof membrane is positioned atop the polyisocyanurate foam insulation. The polyisocyanurate core is able to form a sufficiently stable char when exposed to flame conditions such that the polyisocyanurate core is able to pass the ASTM E-84 test.