Title:
FOAMING RESIN COMPOSITE FOR HIGHLY FOAMING INSULATING POLYETHYLENE AND HIGHLY FOAMING INSULATING POLYETHYLENE COATED WIRE FORMED BY COATING IT
Document Type and Number:
Japanese Patent JP3860243
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a foaming resin composite of highly mechanical strength by expansion ratio of 70% or more by kneading a specific low temperature resolving chemical foaming agent, etc., to kneading materials of specific polyethylene, polypropylene, etc., and setting preexpansion ratio to 5% or less.
SOLUTION: High density polyethylene 30-200 pts.wt. of the melting point 130°C or more, polypropylene 2-50 pts.wt. of the melting point 140°C or more, and polysiloxane-polyether block copolymer 0.1-5 pts.wt. of the equation 1 are added to low density polyethylene 100 pts.wt. having long chain branch made by high pressure method of density 0.915-0.925g/cm3 and melt index 0.1-10.0g/10min. and heated and kneaded at the temperature of 140°C or more. P, p'-oxi-bis-benzenesulfonyl hydrazide 0.5-3.0 pts.wt. is added to this kneading material 100pts.wt., kneaded under the temperature of 120°C or more and less than 130°C, and the preexpansion ratio is set to 5% or less.
Inventors:
Toshio Sakamoto
Tatsuhiko Inoue
Mamoru Yoshida
Tatsuhiko Inoue
Mamoru Yoshida
Application Number:
JP3418896A
Publication Date:
December 20, 2006
Filing Date:
January 30, 1996
Export Citation:
Assignee:
Nippon Unicar Co., Ltd.
International Classes:
B29C47/02; C08L23/00; H01B3/44; C08L23/04; C08L87/00; H01B7/02; (IPC1-7): H01B3/44; B29C47/02; H01B7/02; //C08L23/04; C08L23/04
Domestic Patent References:
| JP4076028A | ||||
| JP63023944A | ||||
| JP7249322A | ||||
| JP62010804A | ||||
| JP54082978U | ||||
| JP56057206A | ||||
| JP8007656A | ||||
| JP6179824A |
Attorney, Agent or Firm:
Kenji Kawabi
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