Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2005-05-24
2005-05-24
Shosho, Callie (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S563000, C524S801000, C554S219000
Reexamination Certificate
active
06897257
ABSTRACT:
A process for synthesizing copolymers of ethylenically unsaturated monomers with ethylenically unsaturated derivatives of fatty acids and/or oils via emulsion polymerization techniques is performed in two stages. One or more suitable ethylenically unsaturated monomers are polymerized in the first stage of an emulsion polymerization. The ethylenically unsaturated derivatives of fatty acids and/or oils are blended with other monomers and polymerized in a second stage of the polymerization reaction. A suitable surfactant is added to the polymerization mixture to facilitate formation of the emulsion. In a preferred embodiment, the surfactant is a hybrid surfactant, i.e., one having both anionic and non-ionic characteristics.
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“Castor-Based Derivatives: Synthesis of Some Acrylate Esters” by Jane S. Nelson and Thomas H. Applewhite,Journal of the American Oil Chemists' Society, Sep., 1966, pp. 542-545.
Blackwell Catherine C.
Chen Sheng
Smith Oliver W.
Thames Shelby F.
Howrey Simon Arnold & White , LLP
Shosho Callie
The University of Southern Mississippi
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