HYDROPHILICALLY MODIFIED SILICONE ELASTOMERS 205 with longer PEG substituents were more effective emulsifiers, as measured by a water uptake test, and could accommodate more tocopherol. Emulsification effectiveness and compatibility with tocopherol also increased as the level of PEG substitution increased. The crosslink density of the PEG-DCP had the largest effect on the viscosity elastomer dispersion, with lower crosslink density giving the highest viscosities. These findings suggest that PEG-DCP can be tailored for specific applications by selecting the appro- priate combination of composition and process. REFERENCES (1) W.J. Schulz, Jr. and S. Zhang, U.S. Patent 5,654,362 (August 5, 1997). (2) W.J. Schulz, Jr. and S. Zhang, U.S. Patent 5,811,487 (September 22, 1998). (3) Z. Lin, W.J. Schulz, Jr., and S. Zhang, U.S Patent 5,948,855 (September 9, 1999). (4) Z. Lin, W.J. Schulz, Jr., and J. M. Smith, U.S. Patent 6,080,394 (June 27, 2000). (5) N. E. Prieto and A.J. O'Lenick, J. Cosmet. Sci., 51, 91-101 (2000).
j. Cosmet. Sci., 54, 207-227 (March/Arpil 2003) Papers Presented at the 2002 Annual Scientific Meetino and Technolooy Showcase (Friday's Program) December 5-6, 2002 New York Hilton New York, NY 2O7
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