DE-INKING OF WASTE PAPERS
Process for de-inking old papers in the presence of at least partly water-soluble polymers and/or copolymers with mean molecular weights between 2000 and 500 000 obtained by polymerization or by copolymerization of monomers containing amino groups with unsaturated acid derivatives.
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Main Authors | , , |
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Format | Patent |
Language | English German |
Published |
01.08.1990
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Edition | 4 |
Subjects | |
Online Access | Get full text |
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Summary: | Process for de-inking old papers in the presence of at least partly water-soluble polymers and/or copolymers with mean molecular weights between 2000 and 500 000 obtained by polymerization or by copolymerization of monomers containing amino groups with unsaturated acid derivatives. |
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Bibliography: | Application Number: EP19890121088 |