Methods of preparing hollow acrylate polymer microspheres

Details Methods of preparing hollow acrylate polymer microspheres Methods of preparing hollow acrylate polymer microspheres

1995-12-01

1996-11-26

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 60, 521 63, 521 64, 521149, 523223, 524801, C08J 928, C08J 932

Patent

active

055786502

ABSTRACT:
A one-step emulsification process for preparing aqueous suspensions of hollow, acrylate polymer microspheres conducted in the presence of at least one acid that is not free radically polymerizable. Surprisingly, the use of such an acid eliminates the previous requirement of using a polar copolymerizable monomer in the one-step emulsification process. The hollow acrylate polymer microspheres prepared from the process of the invention may be tacky or tack-free.

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