Vinylene carbonate polymers, a process for their preparation and

Details Vinylene carbonate polymers, a process for their preparation and Vinylene carbonate polymers, a process for their preparation and

1983-11-23

1985-09-17

Schofer, Joseph L.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

526201, 526314, C08F21824, B32B 516

Patent

active

045420696

ABSTRACT:
The invention relates to bead polymers based on vinylene carbonate which are distinguished, in particular, by high porosity and which are well suited as carrier materials for biologically active substances.
The preparation of these bead polymers is carried out, according to the invention, in the presence of certain dispersion stabilizers.

REFERENCES:
patent: 2932629 (1960-04-01), Wiley
patent: 3553183 (1971-01-01), Field
patent: 4070348 (1978-01-01), Kraemer et al.
patent: 4098771 (1978-07-01), Huemer et al.

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