Particulate polymer and polymer compositions therewith

Details Particulate polymer and polymer compositions therewith Particulate polymer and polymer compositions therewith

1989-09-13

1991-02-19

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

524377, 524762, 525459, 528 76, 528 80, 528 83, 528332, 528336, 528390, C08G 1814

Patent

active

049945033

ABSTRACT:
This invention relates to a composition comprising a particulate polymer dispersed in a continuous phase and a process for preparing the particulate polymer. The particulate polymer is characterized in that it is prepared by contacting a polyamine with a carbonyl-containing compound. The particulate polymer dispersions can be used for preparing reinforced polymer matrices, especially where the matrix comprises urethane and/or urea linkages.
The invention allows for the preparation of a particulate polymer without using organic polyisocyanate.

REFERENCES:
patent: 4089835 (1978-05-01), Konig et al.
patent: 4374209 (1983-02-01), Rowlands
patent: 4477602 (1984-10-01), Liang et al.
patent: 4546121 (1985-10-01), Haas et al.

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