Expandable polyolefin particles

Details Expandable polyolefin particles Expandable polyolefin particles

2005-03-08

2005-03-08

Foelak, Morton (Department: 1711)

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C427S220000, C427S221000, C427S222000

Reexamination Certificate

active

06864298

ABSTRACT:
The invention relates to expandable polyolefin beads which comprise blowing agent and have been coated with from 0.01 to 3% by weight of a salt and/or ester of a long-chain fatty acid, preferably with calcium stearate, to prevent caking during foaming.

REFERENCES:
patent: 5623012 (1997-04-01), Hwo
patent: 195 41725 (1997-05-01), None
patent: 199 50420 (2001-04-01), None
BASF 51093; Preparation of Expandable Propylene—DE 100 03 021.
Polymer Beads.
60 181 139 Japan—Abstr.
58 1520 28 Japan—Abstr.
63130646—XP-002202969 Abstr.

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