Title:
セメント流動化剤のためのハイソリッドポリカルボキシラート合成
Document Type and Number:
Japanese Patent JP6643477
Kind Code:
B2
Abstract:
The present invention provides efficient methods to form a high solids content polymeric polyacid or a comb polymer useful as a superplasticizer or dispersant which comprise heating to from 80 to 100 C. for a first time period, and then, sequentially, heating to a second temperature of from 150 to 250° C. for a second time period a wet reaction mixture having a solids content of from 80 to 99 wt. % and comprising from 15 to 60 wt. % of one or more ethylenically unsaturated acid or a salt thereof, from 37 to 76.99 wt. % of one or more polyether polyols, alkyl polyether polyols, polyether amines or alkyl polyether amines in the presence of (i) from 0.01 to 1 wt. %, of one or more water soluble radical initiators or redox pairs and (ii) from 2 to 22 wt. % of one or more phosphorus oxide containing compounds, all weights based on the total weight of the wet reaction mixture.
Inventors:
William Sea Finch
Mike McGinnis
Sudir M Muriku
Charles Jay Land
Mike McGinnis
Sudir M Muriku
Charles Jay Land
Application Number:
JP2018526054A
Publication Date:
February 12, 2020
Filing Date:
November 18, 2016
Export Citation:
Assignee:
ROHM AND HAAS COMPANY
International Classes:
C08F2/44; C08G81/02
Domestic Patent References:
| JP2002510276A | ||||
| JP2009132918A | ||||
| JP2011500954A | ||||
| JP2005520900A | ||||
| JP6287208A |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mitsuhashi
Satoshi Deno
Atsushi Ebiya
Naori Kota
Naoki Kobayashi
Shinji Mitsuhashi
Satoshi Deno
Atsushi Ebiya
Naori Kota
Naoki Kobayashi
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