Title:
SURFACE PREPARATION AGENT
Document Type and Number:
Japanese Patent JP2018145058
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a surface preparation agent, in which the number of carbon in a perfluoroalkyl group is reduced to 6 or less to eliminate the possibility of causing PFOA, specifically to provide the surface preparation agent that shows little influence on an organism and environment and is excellent in water repellency and water proofness by using, as a substituent, a compound obtained by replacing (CF)F in the formula with (CF)F, (CF)F or the like.SOLUTION: This invention relates to a treatment agent for water repellency and water-proofness of concrete, comprising in a solvent, a polymer containing a unit based on a compound expressed by the following formula (a): CH=C(R)-COO-(CH)-(CF)F, where Ris a hydrogen atom or a methyl group, n is an integer of 0-4, and m is an integer of 1-6.SELECTED DRAWING: None
Inventors:
HIRABAYASHI RYO
Application Number:
JP2017042506A
Publication Date:
September 20, 2018
Filing Date:
March 07, 2017
Export Citation:
Assignee:
AGC SEIMI CHEMICAL CO LTD
International Classes:
C04B41/63; B05D5/00; B05D7/00; B05D7/24; B32B13/12; B32B27/30; C09K3/18
Attorney, Agent or Firm:
Nozomi Watanabe
Haruko Sanwa
Haruko Sanwa