Process for the continuous production of gel free polymers, and powder and liquid coating applications containing gel free polymers
AssigneeJohnson Polymer, Inc.
InventorsJ. David Campbell, Michihiro Kaai, Yasuhiko Mori, Alan J. Pekarik, Warunee Srisiri-Sisson, Marco A. Villalobos
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Abstract
A process is disclosed for a continuous, high temperature polymerization process for preparing a gel free polymeric product. The process comprises continuously charging into a reactor at least one monomer such that the reactor is filled to 100 percent of its usable volume. The reactor is maintained at an effective temperature for an effective period of time to cause polymerization of the monomers into a polymeric product, such that the polymeric product is formed substantially free of gel particles.
Claims37
A continuous, high temperature polymerization process for preparing a free radically polymerized polymeric product comprising:
- (a) continuously charging into a reactor monomers consisting essentially of:
- (i) at least one epoxy-functional acrylic monomer;
- and
- (ii) at least one additional monoethylenically unsaturated free radical polymerizable monomer, such that the reactor is filled to 100 percent of its usable volume;
- and
- (b) polymerizing the monomers at a temperature of 190° to 270° C. to produce a polymeric product, wherein the reactor is filled to 100 percent of its usable volume during the polymerization of the monomers, such that the polymeric product is formed substantially free of gel particles.
Dependencies are inferred from the claim text.