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Title:
PRODUCTION METHOD FOR AQUEOUS RESIN COMPOSITION FOR ANTI-RUST COATING, AQUEOUS RESIN COMPOSITION FOR ANTI-RUST COATING, ANTI-RUST TREATMENT METHOD, AND ANTI-RUST TREATED METAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/092987
Kind Code:
A1
Abstract:
Provided is a production method for an aqueous resin composition for an anti-rust coating, comprising steps of: heating an aqueous resin composition containing a carboxyl group-containing aqueous resin to a temperature not lower than 50ºC and less than the melting point of the aqueous resin; adding an epoxy silane coupling agent and/or a hydrolytic condensate thereof to the heated aqueous resin composition to cause a reaction; and cooling the aqueous resin composition to a temperature less than 50ºC after the reaction, then adding a water-dispersible silica. Also provided is an aqueous resin composition for an anti-rust coating produced by means of the production method. Further provided are an anti-rust treatment method using the aqueous resin composition for an anti-rust coating and an anti-rust-treated metal material subjected to the anti-rust treatment.

Inventors:
NAKAMURA Shintaro (4-1-15, Minamishinagawa, Shinagawa-k, Tokyo 75, 〒1408675, JP)
MIURA Yusuke (4-1-15, Minamishinagawa, Shinagawa-k, Tokyo 75, 〒1408675, JP)
YAMANE Kensuke (4-1-15, Minamishinagawa, Shinagawa-k, Tokyo 75, 〒1408675, JP)
Application Number:
JP2018/034498
Publication Date:
May 16, 2019
Filing Date:
September 18, 2018
Export Citation:
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Assignee:
NIPPON PAINT SURF CHEMICALS CO., LTD. (4-1-15, Minamishinagawa Shinagawa-k, Tokyo 75, 〒1408675, JP)
International Classes:
C09D201/08; B05D7/14; B05D7/24; C09D5/02; C09D5/08; C09D7/61; C09D7/65; C23C22/00
Foreign References:
JP4510196B22010-07-21
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (Sapia Tower, 1-7-12 Marunouchi, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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