Invention Grant
- Patent Title: Process for the post-modification of homo and copolymers prepared by controlled free radical polymerization processes
- Patent Title (中): 通过控制的自由基聚合方法制备的均聚物和共聚物的后修饰方法
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Application No.: US13660260Application Date: 2012-10-25
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Publication No.: US08658741B2Publication Date: 2014-02-25
- Inventor: Ralf Knischka , Ernst Eckstein , Clemens Auschra , Akira Matsumoto
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agent Tyler A. Stevenson
- Priority: EP05100102 20050111
- Main IPC: C08F8/00
- IPC: C08F8/00 ; C08F20/10 ; C08F120/10
Abstract:
The instant invention pertains to the preparation of polymers or copolymers wherein in a first step a controlled free radical polymerization process is carried out and in a second step the resulting polymer is modified by transesterification reactions. The final modified polymer or copolymer is useful as a dispersant for pigments. Further aspects of the invention are the thus prepared polymers or copolymers, a pigment concentrate containing the polymer or copolymer and a coating material containing the pigment concentrate.
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