Title:
プロテクタ層付きホースの製法
Document Type and Number:
Japanese Patent JP5027342
Kind Code:
B1
Abstract:
A method for manufacturing a hose with a protector layer 2 on the outer periphery of a tubular polyamide resin layer 1 includes steps of: preparing a rubber composition for forming the protector layer by separately preparing a first rubber material containing components (A) to (C) and a second rubber material containing components (a) and (b) but substantially free of a sulfur vulcanization agent and mixing them in a mixer; and forming the protector layer 2 by continuously vulcanizing unvulcanized rubber after continuous extrusion of the rubber composition onto the outer periphery of the previously formed polyamide resin layer 1.
(A) Ethylene-propylene rubber
(B) Sulfur vulcanization agent
(C) Thiuram vulcanization accelerator (mp. 66 to 105 °C)
(a) Ethylene-propylene rubber
(b) Vulcanization accelerator (mp. 120 °C or higher)
Inventors:
Naoki Koyanazu
Kazutaka Katayama
Kazutaka Katayama
Application Number:
JP2012501041A
Publication Date:
September 19, 2012
Filing Date:
September 12, 2011
Export Citation:
Assignee:
Tokai Rubber Industry Co., Ltd.
International Classes:
B32B1/08; B29C48/09; B29C48/151; B29C48/21; B29D23/00; B32B25/08; B32B27/32; C08K5/36; C08L23/16; F16L11/04
Domestic Patent References:
| JPH06256600A | 1994-09-13 | |||
| JP2002181254A | 2002-06-26 | |||
| JP2006272898A | 2006-10-12 | |||
| JPH06256600A | 1994-09-13 | |||
| JP2002181254A | 2002-06-26 | |||
| JP2006272898A | 2006-10-12 |
Attorney, Agent or Firm:
Masahiko Nishito