Title:
配水管用青色着色樹脂組成物及び青色着色配水管
Document Type and Number:
Japanese Patent JP4781594
Kind Code:
B2
Abstract:
A colored resin composition for water pipes which comprises (A) a polyethylene resin and, per 100 parts by weight of the polyethylene resin, (B) 0.01 to 2.0 parts by weight of (i) a cobalt blue pigment, 0.0001 to 0.2 parts by weight of (ii) at least one pigment selected from phthalocyanine pigments having no metals and metal phthalocyanine pigments having no chlorine atoms or one chlorine atom in a molecule, 0.0001 to 0.2 parts by weight of (iii) a dioxazine pigment and 0.002 to 0.5 parts by weight of (iv) a titanium dioxide pigment and a colored water pipe which comprises the colored polyethylene resin composition and has a color tone within a specific color solid expressed by the values of the Munsell standard color table before and after the test of resistance to chlorine water in accordance with the method of Japanese Industrial Standard K 6762 for 500 hours. The colored resin composition for water pipes and the colored water pipe are colored in a bluish color and exhibits an excellent hiding property, excellent fastness of the color tone of the coloring component to water containing chlorine and an excellent property for preventing formation of blisters in water containing chlorine.
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Inventors:
Kotaro Oshima
Toru Matsuoka
Yozo Nagai
Mitsuo Nakamura
Toru Matsuoka
Yozo Nagai
Mitsuo Nakamura
Application Number:
JP2001560284A
Publication Date:
September 28, 2011
Filing Date:
February 16, 2001
Export Citation:
Assignee:
High Tech Chem Co., Ltd.
Japan Polyolefins Co., Ltd.
Japan Polyolefins Co., Ltd.
International Classes:
C08L23/06; C08K5/00; C08K13/02; E03C1/02; F16L9/12; F16L11/08
Domestic Patent References:
| JP6456747A | ||||
| JP10265620A | ||||
| JP10265621A | ||||
| JP1160831A | ||||
| JP11302390A |
Attorney, Agent or Firm:
Mitsuru Uchiyama