Processes to produce water-dispersible polyester stabilized...

Details Processes to produce water-dispersible polyester stabilized... Processes to produce water-dispersible polyester stabilized...

2007-02-06

2007-02-06

Choi, Ling-Sui (Department: 1713)

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...

C524S544000, C524S556000, C524S805000

Reexamination Certificate

active

10639576

ABSTRACT:
A process is provided to produce an aqueous dispersion wherein the aqueous dispersion enhances the water and oil repellency of materials. The process comprises: 1) contacting at least one fluoroalkyl monomer, at least one water-dispersible polyester, water, and optionally an ethylenically unsaturated monomer to form a pre-emulsion; and 2) polymerizing the pre-emulsion in a polymerization zone in the presence of an initiator to produce the aqueous dispersion.In another embodiment, a process to produce an aqueous dispersion is provided. The process comprises: 1) contacting at least one fluoroalkyl monomer, at least one water-dispersible polyester, water, and optionally an ethylenically unsaturated monomer to form a pre-emulsion; 2) shearing the pre-emulsion to produce a mini-emulsion; and 3) polymerizing the miniemulsion in a polymerization zone to produce the aqueous dispersion.

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Copending U.S. Appl. No. 10/639,723, 10/639,414, 10/639,414.
Emulsion and Miniemulsion Copolymerization of Acrylic Monomers in the Presence of Alkyd Resin,Journal of Applied Polymer Science, vol. 60, pp. 2069-2076 (1996).

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