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. 15, 2002
Filed:
Jun. 10, 1997
Applicant:
Inventors:
Andrea Cappella, Trento, IT;
Werner Hoffmann, Leuven, BE;
Silvio Barettini, Varese, IT;
Maria Vittoria Franco, Angera, IT;
Walter Bazzo, Varese, IT;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/848 ; C08G 1/850 ;
U.S. Cl.
CPC ...
C08G 1/848 ; C08G 1/850 ;
Abstract
Process for the preparation of a rigid polyurethane or urethane-modified polyisocyanurate foam in the presence of a hydrocarbon blowing agent using a tolylenediamine-initiated polyether polyol in an amount of between 10 and 40% by weight based on total isocyanate-reactive compounds.