Aqueous Dispersions of Crystalline Polymers and Uses

Aqueous dispersions of crosslinked crystalline polymers containing both hydrophobic and hydrophilic components have been prepared. The hydrophobic components consist of Cg-, Ci2-, C14-, and Cig-acrylates while methyacryhc acid constituted the hydrophilic comonomer. These dispersions are useful as coatings, particularly on human hair. 

A mixture consisting of water (190 g), ethyl alcohol (10 g), hexadecyl acrylate (70 g), hexyl acrylate (25 g), methyacrylic acid (5g), 3.2% sodium dodecyl sulfate, and ammonium dodecyl benzene sulfonate (5 g) was charged into a reactor and degassed for 30 minutes. Potassium persulfate (0.4 g) was then added, and the polymerization was conducted for 4 hours at 70°C under nitrogen. After the polymer was isolated, a sharp DSC endotherm was observed at 22.5°C. 

TABLE 1. Effects on terpolymer for materials crosslinked with 1,14 tetradecyldiol using varying amounts of surfactant and co-solvents. 

Reaction Components Example 1 Example 3 Example 5 Example 7 

I m Peak appearance Broad Sharp Multiple peaks Sharp 

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Title Aqueous Dispersions of Crystalline Polymers and Uses... 

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