Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
水中水型のポリマー分散液を製造する方法
Document Type and Number:
Japanese Patent JP4012067
Kind Code:
B2
Abstract:
The invention relates to methods for manufacturing a water-in-water polymer dispersion containing polymer A and at least one polymer dispersant B, according to which monomers, which are dispersed in an aqueous phase containing water-soluble dispersant B, are subjected to radical polymerization, possibly following the addition of a water-soluble salt, and, after polymerisation, a water-soluble acid is added to the water-soluble and/or water-swellable polymer A obtained in this way, where the acid is added in quantities of 0.1 to 5% by weight and the salt in quantities of up to a maximum of 3% by weight, each referred to the total dispersion, and the total quantity of salt and acid amounts to a maximum of 5% by weight, referred to the total dispersion.

Inventors:
Fischer, Ulrich
Shrouth, Otto
Wolfberg, Wolfgang
Application Number:
JP2002548007A
Publication Date:
November 21, 2007
Filing Date:
December 01, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Ashland Licensing and Intellectual Property LLC
International Classes:
C08F2/20; C09K23/16; C08F2/10; C08F2/44; C08F20/36; C08F20/56; C08J3/03; C09K23/38; C09K23/52; D21H17/45; D21H21/10
Domestic Patent References:
JP2001286899A
JP2000024672A
JP2002500699A
JP10195116A
JP4039481B2
Foreign References:
WO2000027893A1
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro