Title:
医療用チューブ
Document Type and Number:
Japanese Patent JP4855277
Kind Code:
B2
Abstract:
The invention provides a propylene polymer composition well balanced and excellent in transparency, flexibility, heat resistance, scratch resistance and rubber elasticity, and a medical tube made from the propylene polymer composition. The propylene polymer composition satisfies all the following properties (A), (B), (C) and (D): (A) the composition shows a loss tangent (tan´) peak at a temperature in the range of -20 to 25°C according to dynamic viscoelasticity measurement (10 rad/s) in a torsion mode, and the peak is 0.5 or above; (B) the storage elastic modulus G' at 20°C from the dynamic viscoelasticity measurement is in the range of 1.0x10 7 to 4.9x10 8 dyn/cm 2 ; (C) the penetration temperature (°C) determined in accordance with JIS K 7196 is in the range of 60 to 160°C; and (D) the composition has a permanent set of not more than 30% as determined after the composition fixed between chucks 30 mm apart is 100% strained at a stress rate of 30 mm/min, maintained for 10 minutes and released for 10 minutes. The medical tube is made from the propylene polymer composition.
Inventors:
Ryoji Mori
Takashi Nakagawa
Mamoru Kagami
Akira Todo
Takashi Nakagawa
Mamoru Kagami
Akira Todo
Application Number:
JP2007007349A
Publication Date:
January 18, 2012
Filing Date:
January 16, 2007
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
OTSUKA PHARMACEUTICAL FACTORY,INC.
OTSUKA PHARMACEUTICAL FACTORY,INC.
International Classes:
A61L31/00; C08L23/10; C08L23/12; C08L23/16; A61M1/00; A61M1/02; A61M1/14; A61M39/08; C08L23/14
Domestic Patent References:
| JP2002097323A | ||||
| JP2002097325A | ||||
| JP2002097228A | ||||
| JP7003088A | ||||
| JP2001172448A | ||||
| JP2000191858A | ||||
| JP2000191861A | ||||
| JP2000355644A | ||||
| JP2001172449A |
Attorney, Agent or Firm:
Koji Makimura