S. C. Johnson Commercial Markets, Inc.

Basf Corporation

Johnson Polymer, Inc.

Michihiro Kaai

Marco A Villalobos

J David Campbell

David D Schatz

Warunee Srisiri-Sisson

Yasuhiko Mori

Fouad Teymour

Jon A Debling

Kevin M Andrist

Alan J Pekarik

Dennis M Wilson

Douglas J DeYoung

John D Campbell

Tsugio Kimura

Richard Chylla

A continuous polymerization process for producing reactive polymers comprises continuously charging into a first reaction zone at least one functional monomer and polymerizing the monomers to produce a first polymeric product having at least one functional group. This first polymeric product is then continuously directly charged into a second reaction zone together with at least one modifier reactant having a functional group that is complementary to the functional group of the first polymeric product. At least a portion of the modifier reactant reacts with at least one of the functional groups of the first polymeric product to produce a second polymeric product which incorporates at least a portion of the modifier reactant, such that the second polymeric product is a reactive polymer.

Process for continuous production of reactive polymers with in-line post-modification and products thereof

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.

Process for the continuous production of gel free polymers, and powder and liquid coating applications containing gel free polymers

A process for preparing low molecular weight homomacromers and comacromers which includes (a) charging a reactor with (i) ethylenically unsaturated monomers selected from the group consisting of acrylic monomers or monoalkenyl aromatic monomers and (ii) if said ethylenically unsaturated monomer is not a thermally initiating monomer, a free radical polymerizable initiator, to form a polymerizable reaction charge. The reaction charge is heated during continuous mixing in the reactor to reaction temperature in the range from about 180&deg; C. to about 500&deg; C. for a residence time greater than 5 minutes to form the low molecular weight homomacromers or comacromers. If the residence time is 60 minutes or less, the reaction temperature is greater than 270&deg; C. and if the reaction charge is a mixture of acrylic monomer and monoalkenyl monomer and the residence time is 60 minutes or less then the reaction temperature is greater than 310&deg; C.

Process for the preparation of macromers

The present invention provides a high temperature continuous polymerization and condensation process for preparing a polymeric product. The process includes continuously charging into a reaction zone: at least one radically-polymerizable monomer having a radically polymerizable group and at least one condensation reactive functionality; and at least one modifying agent having a functional group capable of reacting with the condensation reactive functionality. The reaction zone includes at least one primary reactor, but may, and preferably does, contain a secondary reactor. The process further includes maintaining an effective temperature in the primary reactor to cause polymerization of the monomer and to allow at least a portion of the condensation reactive functionality to react with the functional group of the modifying agent.

Process for producing polymers by free radical polymerization and condensation reaction, and apparatus and products related thereto

Growing community of inventors

Toyoake, Japan

Michihiro Kaai