Title:
熱酸化分解に対して改良した抵抗性を示すポリオレフィン成形用組成物およびパイプの製造のためのその使用
Document Type and Number:
Japanese Patent JP2008540746
Kind Code:
A
Abstract:
A polyolefinic molding composition comprises a thermoplastic polyolefin, and an organic polyoxy compound and/or an organic polyhydroxy compound. A polyolefinic molding composition comprises: a thermoplastic polyolefin, and an organic polyoxy compound of formula R-[(CH 2) n-O] m-H and/or or an organic polyhydroxy compound of formula RO-CH 2-C(CH 2-OR) 3 (0.01 - 1 wt.%). n : 1 - 10; m : 3 - 500; and R : H, OH or 1-10C alkyl (substituted by OH, COOH, COOR, OCH 3 or -OC 2H 5). Independent claims are included for the following: (1) process for improving the resistance of pipes involving thermoplastic polyolefins which are in long-term contact with liquids comprising disinfectants having an oxidizing effect against thermo-oxidative degradation, where the pipes are produced by extrusion of a polyolefinic molding composition; and (2) use of polyoxy compounds or polyhydroxy compounds for improving the stability of pipes involving thermoplastic polyolefins which are in long-term contact with liquids comprising disinfectants having an oxidizing effect, where the polyoxy compounds or the polyhydroxy compounds are added as additive to the thermoplastic polyolefins prior to production of the pipes in an amount of 0.01 - 1 wt.% based on the total weight of polyolefin plus additive.
Inventors:
Vogue, Heinz
Nitz, Hans Elk
Nitz, Hans Elk
Application Number:
JP2008510469A
Publication Date:
November 20, 2008
Filing Date:
May 06, 2006
Export Citation:
Assignee:
Basel, Polyolefin, Game Beher
International Classes:
C08L23/00; C08J5/00; C08K5/01; C08K5/04; C08L71/00
Domestic Patent References:
| JPH08142153A | 1996-06-04 | |||
| JP2000063603A | 2000-02-29 | |||
| JP2001064457A | 2001-03-13 | |||
| JPH09291180A | 1997-11-11 | |||
| JPH09296079A | 1997-11-18 | |||
| JPH0270737A | 1990-03-09 | |||
| JP2000072860A | 2000-03-07 |
Foreign References:
| US4186123A | 1980-01-29 | |||
| US5534572A | 1996-07-09 |
Attorney, Agent or Firm:
Kazuo Shamoto
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Ken Matsumoto
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Ken Matsumoto