Pre-expanded articles of a polyolefin resin having microcell and

Details Pre-expanded articles of a polyolefin resin having microcell and Pre-expanded articles of a polyolefin resin having microcell and

1995-08-03

1997-02-04

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 58, C08J 918

Patent

active

055998500

ABSTRACT:
The present invention relates to a process for preparing pre-expanded articles of a polyolefin resin wherein a blowing agent is incorporated into the polyolefin resin in an amount of 45 to 90 parts by volume with respect to 100 parts by volume of the resin and the pre-expansion is carried out at a temperature in the range of from Tm -35.degree. C. to Tm -20.degree. C., or a second external pressured gas which facilitate the impregnation efficiency of the blowing agent is further introduced in an amount of expressing an additional pressure more than 10 kg/cm.sup.2 with the blowing agent. Also, the present invention relates to pre-expanded articles of a polyolefin resin produced by the above process.

REFERENCES:
patent: 4448901 (1984-05-01), Senda et al.
patent: 4540718 (1985-09-01), Senda et al.
patent: 4704239 (1987-11-01), Yoshimura et al.
patent: 4810440 (1989-03-01), Yoshida et al.
patent: 4861531 (1989-08-01), Maeda
patent: 4931477 (1990-06-01), Shiiki et al.
patent: 5017621 (1991-05-01), Shiiki et al.
patent: 5459169 (1995-10-01), Tokoro et al.

Affiliated with

Also associated with

Rating

Pre-expanded articles of a polyolefin resin having microcell and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pre-expanded articles of a polyolefin resin having microcell and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pre-expanded articles of a polyolefin resin having microcell and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-679143