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:
Feb. 22, 2005
Filed:
Jan. 23, 2003
Zen Komiya, Tsukuba, JP;
Adrianus G. M. Abel, Capelle aan de IJ ssel, NL;
Duurt P. W. Alkema, Den Haag, NL;
Masahito Mase, Tsukuba, JP;
Takashi Ukachi, Ushiku, JP;
Zen Komiya, Tsukuba, JP;
Adrianus G. M. Abel, Capelle aan de IJ ssel, NL;
Duurt P. W. Alkema, Den Haag, NL;
Masahito Mase, Tsukuba, JP;
Takashi Ukachi, Ushiku, JP;
DSM IP Assets B.V., Heerlen, NL;
JSR Corporation, Tokyo, JP;
Abstract
The present invention provides a curable composition, comprising: a (meth)acrylate urethane compound derived from a polypropylene glycol or a propyleneoxide ethyleneoxide copolymer glycol having a molecular weight between 1,000 and 13,000 and an amount of unsaturation less than 0.01 meq/g. The liquid curable resin composition of the present invention has improved liquid stability and can produce cured products having superior mechanical characteristics by polymerization. The composition further comprises preferably a primary or secondary amine. The liquid curable resin composition can be used as a coating material for optical fibers, adhesives, and the like. The composition is particularly suitable as a coating material for optical fibers for which long-term stability is required.