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Patent Searching and Data


Title:
REFRIGERANT PIPE, HEAT EXCHANGER, AND METHOD FOR MANUFACTURING REFIGERANT PIPE
Document Type and Number:
WIPO Patent Application WO/2019/189668
Kind Code:
A1
Abstract:
Provided are a refrigerant pipe, a heat exchanger, and a method for manufacturing a refrigerant pipe, with which corrosion can be suppressed in a refrigerant pipe containing copper. The refrigerant pipe comprises a pipe main body containing copper or a copper alloy, and a rustproof film formed on the outer surface of the pipe main body. The rustproof film is obtained by applying to the outer surface of the pipe main body a coating agent wherein one or more types of rustproofing agents selected from the group consisting of (A) an organic sulfonate compound, (B) an organic acid ester compound of a polyhydric alcohol, and (C) an aliphatic amine compound having a carbon number of 8 to 24 are blended. When the coating agent includes a rustproofing agent of (C) an aliphatic amine compound having a carbon number of 8 to 24 the coating agent includes 2.0 weight% to 10.0 weight% of (C) an aliphatic amine compound having a carbon number of 8 to 24.

Inventors:
KANETAKE, Mirei
TANAKA, Yuuji
OKADA, Kunihiro
OHYA, Hideo
KATAYAMA, Hideo
IMAZU, Keisuke
ARAKI, Shouhei
Application Number:
JP2019/013811
Publication Date:
October 03, 2019
Filing Date:
March 28, 2019
Export Citation:
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Assignee:
DAIKIN INDUSTRIES, LTD. (Umeda Center Building, 4-12 Nakazaki-Nishi 2-Chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
International Classes:
F28F19/02; C23F11/00; F16L58/10; F28F21/08
Domestic Patent References:
WO2015003066A12015-01-08
Foreign References:
JP2016216811A2016-12-22
JPH04314896A1992-11-06
JPS5328544A1978-03-16
US20100294166A12010-11-25
JP2011099152A2011-05-19
JPH08500135A1996-01-09
US20150247061A12015-09-03
JP2014514446A2014-06-19
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (South Forest Bldg, 1-4-19 Minamimori-machi, Kita-ku, Osaka-sh, Osaka 54, 〒5300054, JP)
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