摘要 |
The invention relates to the use of vinyl phosphonic acid or a salt thereof for improving the biodegradability of mixed polymers, comprising 25 to 99.5% by weight of structural units of one or more monomers selected from the group made of compounds of formula (1) and formula (3), where R1 and R2 independently are hydrogen or Ci-C4-alkyl, formula (4), where n is 3, 4, or 5, and formula (5), where X is OH or for NR3R4, and R3 and R4 independently are H or C1 to C4-alkyl, in that 0.5 to 25% by weight of vinyl phosphonic acid is polymerized into the mixed polymer.
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申请人 |
CLARIANT FINANCE (BVI) LIMITED |
发明人 |
KAYSER, CHRISTOPH;BOTTHOF, GERNOLD;TONHAUSER, JUERGEN;SCHAEFER, MICHAEL;DIEMEL, CLAUDIA;HEIER, KARL HEINZ |