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:
May. 19, 2015
Filed:
Dec. 16, 2010
Alessia Battistini, Massenzatico, IT;
Gianluca Casagrande, Castelfranco Emilia, IT;
Luigi Bertucelli, Reggio Emilia, IT;
Alessio Sabadini, Reggio Emilia, IT;
Alessia Battistini, Massenzatico, IT;
Gianluca Casagrande, Castelfranco Emilia, IT;
Luigi Bertucelli, Reggio Emilia, IT;
Alessio Sabadini, Reggio Emilia, IT;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Polyurethane foams are made using a biuret-modified MDI and/or PMDI as the isocyanate component. The isocyanate is characterized by having a high content of biuret-containing oligomers and, preferably, a low proportion (if any) of biuret-urea oligomers. Flexible, resilient foams made using this biuret-modified isocyanate perform well on flammability tests such as the UNI 9175 CS. E. RF4 test, even without added flame retardants.