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. 03, 2005
Filed:
Jul. 18, 2002
Hiromichi Hotta, Ibaraki, JP;
Hisashi Sato, Ibaraki, JP;
Tadanobu Kuroki, Ibaraki, JP;
Genichirou Enna, Ibaraki, JP;
Hiromichi Hotta, Ibaraki, JP;
Hisashi Sato, Ibaraki, JP;
Tadanobu Kuroki, Ibaraki, JP;
Genichirou Enna, Ibaraki, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A method for producing a rigid foamed synthetic resin, which comprises reacting a polyol with a polyisocyanate compound in the presence of water, a catalyst and a fluorine-containing compound of the formula 1:R—O-(A-O)—R  Formula 1where in the formula 1, Ris a Cfluorine-containing organic group, n is an integer of from 1 to 100, A is an alkylene group having a carbon number in the straight chain portion between bonds of from 2 to 4, provided that when n is from 2 to 100, the plurality of A may be the same or different, and R is a hydrogen atom, a Calkyl group or a Cacyl group.