Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
URETHANE (METH) ACRYLATE MONOMER AND MANUFACTURING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2011/059117
Kind Code:
A1
Abstract:
Disclosed is a method for manufacturing a urethane (meth) acrylate monomer that has a low acid value and a low content of high-dimensional cross-linked high molecular weight impurities which exhibit insolubility, said method having: a step wherein a first solution, comprising a urethane (meth) acrylate monomer having an acid value exceeding 0.2mgKOH/g and an organic solvent, is brought into contact with a water-containing sorbent, which can absorb acidic components, to obtain a second solution of a urethane (meth) acrylate monomer having an acid value of 0.2mgKOH/g or less, an organic solvent, and an amount of water exceeding 5,000ppm (mass) relative to the urethane (meth) acrylate monomer; a step wherein a third solution is obtained by bringing the second solution into contact with a dehydrating agent, to reduce the amount of water relative to the urethane (meth) acrylate to at most 5,000ppm (mass); and a step wherein the organic solvent is removed from the third solution.

Inventors:
IZUMI Shinobu (1-1 Mikage-ch, Shunan-shi Yamaguchi, 〒7450053, JP)
和泉 忍 (〒53 山口県周南市御影町1番1号 株式会社トクヤマ内 Yamaguchi, 〒7450053, JP)
SANDO Mitsuyoshi (1-1 Mikage-ch, Shunan-shi Yamaguchi, 〒7450053, JP)
三道 光喜 (〒53 山口県周南市御影町1番1号 株式会社トクヤマ内 Yamaguchi, 〒7450053, JP)
Application Number:
JP2010/070752
Publication Date:
May 19, 2011
Filing Date:
November 16, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOKUYAMA CORPORATION (1-1 Mikage-cho, Shunan-shi, Yamaguchi, 〒7450053, JP)
株式会社トクヤマ (〒53 山口県周南市御影町1番1号 Yamaguchi, 〒7450053, JP)
IZUMI Shinobu (1-1 Mikage-ch, Shunan-shi Yamaguchi, 〒7450053, JP)
和泉 忍 (〒53 山口県周南市御影町1番1号 株式会社トクヤマ内 Yamaguchi, 〒7450053, JP)
SANDO Mitsuyoshi (1-1 Mikage-ch, Shunan-shi Yamaguchi, 〒7450053, JP)
International Classes:
C08G18/82; C08F299/06; C08G18/67
Foreign References:
JPH10158371A1998-06-16
JP2004010489A2004-01-15
JP2007063189A2007-03-15
Other References:
See also references of EP 2502945A4
None
Attorney, Agent or Firm:
OHSHIMA Masataka (OHSHIMA PATENT OFFICE, BN Gyoen Building, 17-11, Shinjuku 1-chome, Shinjuku-ku TOKYO, 〒1600022, JP)
Download PDF: