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:
Oct. 25, 2016
Filed:
Feb. 10, 2014
Basf SE, Ludwigshafen, DE;
Olaf Jacobmeier, Luebbecke, DE;
Gunnar Kampf, Stemwede-Haldem, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to an improved process for producing composite elements comprising at least one outer layer and at least one isocyanate-based rigid foam layer by means of a fixed applicator apparatus and in which the flowable starting material comprises the following components: A) at least one polyisocyanate, B) at least one compound which reacts with isocyanate groups to form urethane, C) at least one blowing agent, D) catalysts comprising at least one compound D1) which catalyzes isocyanurate formation and at least one compound D2) which catalyzes polyurethane formation, comprising at least one amino group, and E) optionally auxiliaries and additives, where the manner of use of component A) and of component B) is such that the isocyanate index is at least 180, and where the ratio by weight of the compound D2) to the compound D1) is from 0.75 to 8.