Polypropylene resin compositions

Details Polypropylene resin compositions Polypropylene resin compositions

1993-02-26

1994-07-12

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524117, 524437, 524430, 524433, C08K 552

Patent

active

053289501

ABSTRACT:
A polypropylene resin composition which is excellent in transparency and which shows very low pH reduction of the extract obtained in a promoted hot water-extraction test of a polypropylene resin which has been irradiated with radiant rays for sterilization. The polypropylene resin composition comprises 100 parts by weight of a polypropylene resin, 0.01 to 1.0 part by weight of a metal diarylphosphate represented by the following general formula (I): ##STR1## (wherein R.sub.1 and R.sub.2 each represents a hydrogen atom or an alkyl group; M represents an alkali metal or an alkaline earth metal; n is an integer of 1 or 2; and A represents an alkylidene group); and 0,001 to 1.0 part by weight of a hydroxide of an alkali metal, an alkaline earth metal or an element of the aluminum group. The polypropylene resin composition is suitable for use in making medical instruments, containers for foods or the like.

REFERENCES:
patent: 4820772 (1989-04-01), Goto et al.

Affiliated with

Also associated with

Rating

Polypropylene resin compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polypropylene resin compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polypropylene resin compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-396969