Method for producing acrylic polymer fine particles

Details Method for producing acrylic polymer fine particles Method for producing acrylic polymer fine particles

2005-01-11

2005-01-11

Seidleck, James J. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S902000, C525S297000, C525S244000, C525S080000, C525S309000, C523S201000, C524S460000

Reexamination Certificate

active

06841622

ABSTRACT:
Acrylic polymer fine particles which comprise primary particles P of 250 nm or more in average particle diameter having a core shell structure and plastisols prepared using the same.In the fine particles, a core polymer C and a shell polymer S are copolymers of the following monomer mixtures Mc and Ms, respectively, and the weight ratio of Mc and Ms is 10/90-90/10:Mc:methyl methacrylate20-85 mol %(meth)acrylic ester of C2-C8aliphatic alcohol and/or aromatic alcohol15-80 mol %other copolymerizable monomersnot more than 30 mol %;, when the total amount of these monomers is 100 mol %;Ms:methyl methacrylate20-79.5 mol %(meth)acrylic ester of C2-C8aliphatic alcohol and/or aromatic alcohol5-40 mol %a monomer containing carboxyl group or sulfonic acid group0.5-10 mol %other copolymerizable monomersnot more than 30 mol %.

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