Process for the production of foam beads

Details Process for the production of foam beads Process for the production of foam beads

1994-09-20

1996-08-27

Seidleck, James J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 56, 521 58, 521144, 264 51, 264 53, 264 54, 264517, C08J 916

Patent

active

055501702

ABSTRACT:
The production of approximately spherical polyolefin foam particles having a coarse cell structure and a narrow cell size distribution by dispersion foaming is achieved by a process in which the reactor contents, which essentially comprise polyolefin particles, a liquid dispersion medium and, if desired, a volatile blowing agent, are first treated at a first temperature above the crystallite melting point T.sub.m of the polyolefin, and subsequently passed through a cooling device, in which the dispersion is brought to a second, lower temperature, and the polymer particles are then foamed at this temperature. The foamed particles can be converted into moldings by known methods.

REFERENCES:
patent: 5071883 (1991-12-01), Kuwabara et al.
patent: 5229049 (1993-07-01), Maeda
patent: 5234962 (1993-08-01), de Grave et al.
patent: 5340841 (1994-08-01), Tokoro et al.

Affiliated with

Also associated with

Rating

Process for the production of foam beads does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of foam beads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of foam beads will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1056617