High polymer network

Details High polymer network High polymer network

1992-04-17

1993-06-29

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

2642884, 2642888, 264 54, 521 79, 521182, C08J 938

Patent

active

052235467

ABSTRACT:
A degradable polymer network obtained by adding from 0.2 to 10 parts by weight of a foaming agent to 100 parts by weight of a polylactic acid-base resin composition comprising from 80 to 100% by weight of polylactic acid or a lactic acid-hydroxycarboxylic acid copolymer and from 0 to 20% by weight of a plasticizer, conducting melt-foaming extrusion of resulting mixture, and opening the foam cells in the extrudate. The high polymer network is characterized in suitable flexibility and hydrolyzability and thus useful as a material for absorbing oils and body fluids, screens for sunlight, heat-insulating materials, filter media and packaging materials; and does not accumulate as industrial wastes because of hydrolyzability in the natural environment, even though abandoned after use.

REFERENCES:
patent: 1995970 (1935-03-01), Dorough
patent: 4181983 (1980-01-01), Kulkarni
patent: 4702917 (1987-10-01), Schindler
patent: 4719246 (1988-01-01), Murdock et al.
patent: 4766182 (1988-08-01), Murdock et al.
WPIL, Week 2289, AN 89-161889 & JP-A-1 104 635 (Taki KK) 21 Apr. 1989.

Affiliated with

Also associated with

Rating

High polymer network does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1755896