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Patent Searching and Data


Title:
PRECEDING MATERIAL FOR PUMPING
Document Type and Number:
WIPO Patent Application WO/2019/142726
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a preceding material for pumping, an injection of a very small amount thereof being capable of extending the pumping distance. The preceding material for pumping is characterized by comprising an added cellulose nanofiber and having calcium carbonate as a main component. The present invention enables a thin lubricant layer of a uniform thickness to be formed inside a pipe even when the pipe has a slightly roughened inner surface due to, for example, residues of solidified cement paste or the like, allowing the pumping distance to be extended. Thus, the present invention is suitable, for example, for casting freshly mixed concrete at various construction sites.

Inventors:
TAKEDA MASANARI (JP)
Application Number:
PCT/JP2019/000615
Publication Date:
July 25, 2019
Filing Date:
January 11, 2019
Export Citation:
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Assignee:
TAKE CITE CO LTD (JP)
International Classes:
C09K3/00; B28B13/02; B28C7/04; B28C7/16
Domestic Patent References:
WO2016060120A12016-04-21
Foreign References:
JPH06207158A1994-07-26
JP2016074196A2016-05-12
JP2002318078A2002-10-31
JP2017025235A2017-02-02
JPH1110630A1999-01-19
JP2012096530A2012-05-24
JP2015093473A2015-05-18
JP2000034461A2000-02-02
JP2016074196A2016-05-12
JP4501098B22010-07-14
Other References:
See also references of EP 3741823A4
Attorney, Agent or Firm:
SHIMANO Yoshiichi (JP)
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