Method of making expandable styrene-type beads

Details Method of making expandable styrene-type beads Method of making expandable styrene-type beads

1980-10-28

1981-08-25

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 57, 521 60, C08J 916

Patent

active

042860695

ABSTRACT:
Expandable styrene-type polymer beads having a short cooling time are made by impregnating the polymer beads, after the substantial completion of the polymerization, in an aqueous suspension medium comprising a suspending agent and about 0.005-0.3%, based on the weight of water, of non-ionic surfactant which is a copolymer of propylene oxide and ethylene oxide having an HLB number of 8-18 and an average molecuar weight of at least 1,000, and by subsequently washing and drying the beads.

REFERENCES:
patent: 3468820 (1969-09-01), Buchholtz et al.
patent: 3480570 (1969-11-01), Roberts et al.
patent: 3991020 (1976-11-01), Alvares et al.
patent: 4042541 (1977-08-01), Watts
patent: 4153763 (1979-05-01), Bracke
patent: 4174427 (1979-11-01), Davis

Affiliated with

Also associated with

Rating

Method of making expandable styrene-type 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 Method of making expandable styrene-type beads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making expandable styrene-type beads will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1159309