Title:
PITCH-CONTROLLING AGENT AND PITCH-CONTROLLING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/209037
Kind Code:
A1
Abstract:
The pitch-controlling agent according to the present invention contains a (meth)acrylamide-based amphoteric polymer. The (meth)acrylamide-based amphoteric polymer includes, as copolymerization monomer components, 50 mol% or more of (meth)acrylamide, 0.5-20 mol% of a diallyl dialkyl ammonium salt, and 0.1-14 mol% of an anionic monomer. This pitch-controlling agent is hardly affected by ambient conditions, and is able to exhibit a high pitch-controlling performance in various environments of a paper-forming process.
Inventors:
SODEYAMA TAKUJI (JP)
AIKAWA YOSHIHIRO (JP)
FUJIWARA TAKAHIRO (JP)
AIKAWA YOSHIHIRO (JP)
FUJIWARA TAKAHIRO (JP)
Application Number:
PCT/JP2017/019879
Publication Date:
December 07, 2017
Filing Date:
May 29, 2017
Export Citation:
Assignee:
HARIMA CHEMICALS INC (JP)
International Classes:
D21H21/02; C08F220/56; D21H17/41
Domestic Patent References:
| WO2000034581A1 | 2000-06-15 |
Foreign References:
| JPS57149592A | 1982-09-16 | |||
| JP2008505257A | 2008-02-21 | |||
| JPS6461596A | 1989-03-08 |
Other References:
See also references of EP 3467202A4
Attorney, Agent or Firm:
SHINTAKU, Masato et al. (JP)
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