Patent ID: 11970559
Assignee: BYK-CHEMIE GMBH
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 16:
17. A method for preparing a grafted polylactic acid, comprising:
providing
a polylactic acid containing carboxylic acid end groups,
an epoxide-functional ethylenically unsaturated polymerizable monomer, and
a radical generating agent;

mixing the polylactic acid, the epoxide-functional ethylenically unsaturated polymerizable monomer, and the radical generating agent,
processing the mixture of the polylactic acid, the epoxide-functional ethylenically unsaturated polymerizable monomer, and the radical generating agent at a temperature between 80° C. and 160° C. to yield a grafted polylactic acid containing carboxylic acid end groups in an amount from 1.0 to 10.0 mg KOH/g and epoxide groups in an amount from 0.005 to 0.500 mmol/g.