POLYCARBONATE RESIN COMPOSITION AND MEDICAL INSTRUMENT COMPRISING THE SAME

Title:

POLYCARBONATE RESIN COMPOSITION AND MEDICAL INSTRUMENT COMPRISING THE SAME

Document Type and Number:

WIPO Patent Application WO/2006/067946

Kind Code:

A1

Abstract:

A polycarbonate resin composition comprising an aromatic polycarbonate resin (A) and a colorant (B) and satisfying the following: when a 3 mm-thick molded piece formed from the polycarbonate resin composition is irradiated with cobalt-60 &gammad -radiation in a dose of 25 kGy and examined for b value by the Hunter Lab method on the seventh day after the irradiation, then the b value is 2 or smaller. Even when this polycarbonate resin composition is irradiated with an ionizing radiation for sterilization, the molded piece does not assume conspicuous yellowness and retains excellent transparency. The composition has such transparency that it gives a medical instrument in which the liquid level or color of the contents such as a liquid drug or blood can be easily recognized. The composition decreases little in mechanical strength. A molding of the composition is suitable for use in applications such as medical instruments.

Inventors:

TAMURA MASAKI (JP)

Application Number:

PCT/JP2005/022184

Publication Date:

June 29, 2006

Filing Date:

December 02, 2005

Export Citation:

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Assignee:

MITSUBISHI ENG PLASTICS CORP (JP)
TAMURA MASAKI (JP)

International Classes:

C08L69/00; A61L29/00; A61L31/00; C08L71/02

Foreign References:

JPH08238309A	1996-09-17
JP2002308975A	2002-10-23
JP2002308977A	2002-10-23
JP2002363398A	2002-12-18
JPH06313114A	1994-11-08
JP2003171545A	2003-06-20
JP2001072852A	2001-03-21
JP2002069283A	2002-03-08
JPH0925404A	1997-01-28
JPH11199683A	1999-07-27

Other References: