Title:
ポリヒドロキシウレタン微粒子の製造方法
Document Type and Number:
Japanese Patent JP5809847
Kind Code:
B2
Abstract:
A problem is to provide polyhydroxyurethane microparticles, which have a narrow particle size distribution and are applicable to a wide range of use. Provided are polyhydroxyurethane microparticles which are spherical polymer microparticles having particle sizes of 0.1 µm to 300 µm. A polymer that makes up the polymer microparticles has in a structure thereof chemical structure units represented by the following formula (1) and/or chemical structure units represented by the following formula (2). In the chemical structure units (1) and (2), -O-CO- bonds have been derived from carbon dioxide.
Inventors:
Uruno Manabu
Kenichi Takahashi
Chiya Kimura
Kazuyuki Hanada
Kenichi Takahashi
Chiya Kimura
Kazuyuki Hanada
Application Number:
JP2011108602A
Publication Date:
November 11, 2015
Filing Date:
May 13, 2011
Export Citation:
Assignee:
Dainichi Seika Kogyo Co., Ltd.
Ukima Gosei Co., Ltd.
Ukima Gosei Co., Ltd.
International Classes:
C08G71/04
Domestic Patent References:
| JP3215504A | ||||
| JP2006009001A | ||||
| JP2007297544A | ||||
| JP2000319504A |
Foreign References:
| US3072613 |
Other References:
Romina V. Gomez and Oscar Varela,Synthesis of Polyhydroxy [n]-Polyurethanes Derived from a Carbohydrate Precursor,Macromolecules,2009年11月10日,Volume 42, Issue 21,pp 8112-8117
Attorney, Agent or Firm:
Toshieko Kondo
Chongqing Sugano
Hiroshi Abe
Chongqing Sugano
Hiroshi Abe