Foamed microbeads and a process for their preparation

Details Foamed microbeads and a process for their preparation Foamed microbeads and a process for their preparation

1988-03-17

1989-02-14

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 433, 521 56, 521 64, 521901, C08J 936

Patent

active

048046876

ABSTRACT:
Foamed microbeads with a shell and an encased core are characterized in that the shell is a reaction product of an NCO-containing carbodiimide and a polyamine, and the core is at least partly filled with a polymeric carbodiimide or its reaction product with a polyamine, and in that the foamed microbeads are self-supporting and can be laden with hydrophilic and if appropriate hydrophobic liquids.

REFERENCES:
patent: 3575882 (1971-04-01), Vandegaer et al.
patent: 3577515 (1971-05-01), Vandegaer
patent: 4089800 (1978-05-01), Temple

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