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EP0239035A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for preparing fine particles of cured polymers, and their use

Assignee: BASF SE
•
Filing: 1987-03-20
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Granted: —
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Expires: 2007-03-20
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Abstract

Abstract Translated from German Verfahren zur Herstellung von pulverförmigen vernetzten Copolymerisaten durch Polymerisieren von Monomerenmischungen aus (a) 70 bis 99,99 Gew.% monoethylenisch ungesättigten Carbonsäuren, deren Amiden und/oder Estern aus monoethylenisch ungesättigten Carbonsäuren und Aminoalkoholen, (b) 0,001 bis 10 Gew.% eines mindestens zweifach ethylenisch ungesättig­ten Monomeren und (c) 0 bis 20 Gew.% anderen monoethylenisch ungesättigten Monomeren in oder in überkritischem Kohlendioxid unter Druck in Gegenwart von Radikale bildenden Initiatoren. Process for the preparation of powdered crosslinked copolymers by polymerizing monomer mixtures (a) 70 to 99.99% by weight of monoethylenically unsaturated carboxylic acids, their amides and / or esters from monoethylenically unsaturated carboxylic acids and amino alcohols, (b) 0.001 to 10% by weight of an at least double ethylenically unsaturated monomer and (c) 0 to 20% by weight of other monoethylenically unsaturated monomers in or in supercritical carbon dioxide under pressure in the presence of free radical initiators.

Inventors

  • 👤 Heinrich Dr. Hartmann
  • 👤 Walter Denzinger

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 10:35
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/52; C08F220/54; A; A61; A61K; A61K47/00; A61K47/30; A61K47/32; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8147; A61K8/8152; A61K8/8158; A61Q; A61Q19/00; C08F220/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/54; Y10; Y10S; Y10S526/00; Y10S526/942

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