Title:
PUMPABILITY IMPROVER, CEMENT CONCRETE, AND SPRAYING CEMENT CONCRETE
Document Type and Number:
WIPO Patent Application WO/2022/230388
Kind Code:
A1
Abstract:
A pumpability improver comprising a poly(ethylene oxide), characterized by the following dynamic viscoelasticity. (1) An aqueous solution of the poly(ethylene oxide), in a dynamic viscoelasticity measurement at an angular frequency of 0.1 rad/s, has a storage modulus G' of 0.01 Pa or greater and a loss modulus G" of 0.01 Pa or greater. (2) The aqueous solution of the poly(ethylene oxide), at an angular frequency of 0.1 rad/s, has a tanδ of 1-30.
Inventors:
MIZUNO HIROKI (JP)
NIKAIDO YASUYUKI (JP)
MUROKAWA TAKAMITSU (JP)
NIKAIDO YASUYUKI (JP)
MUROKAWA TAKAMITSU (JP)
Application Number:
PCT/JP2022/010696
Publication Date:
November 03, 2022
Filing Date:
March 10, 2022
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C08G65/00; C04B18/08; C04B22/08; C04B22/14; C04B24/32; C04B28/02; C09K3/00
Foreign References:
| JP2018008854A | 2018-01-18 | |||
| JP2019064909A | 2019-04-25 | |||
| CN111995285A | 2020-11-27 | |||
| JP2011037688A | 2011-02-24 | |||
| JP2006521193A | 2006-09-21 | |||
| JP2018083931A | 2018-05-31 |
Other References:
YU D M ET AL: "Viscoelastic properties of poly(ethylene oxide) solution", JOURNAL OF PHARMACEUTICAL SCIENCES, AMERICAN CHEMICAL SOCIETY AND AMERICAN PHARMACEUTICAL ASSOCIATION, US, vol. 83, no. 10, 15 July 1994 (1994-07-15), US , pages 1443 - 1449, XP002403728, ISSN: 0022-3549, DOI: 10.1002/jps.2600831016
Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
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