Zwitterionic siloxane polymers and ionically cross-linked polymers formed therefrom
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United States of America Patent
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Sep 26, 2000
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app pub date -
Oct 26, 1999
filing date -
Oct 26, 1999
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Abstract
Ionically cross-linked silicone polymers of a thickened gel-like consistency are made by reacting a diamino containing polysiloxane with an acid containing reactant selected from itaconic acid or the ester derivative thereof; substituted or unsubstituted cyclic and ankydride; substituted or unsubstituted conjugated olefinic acid or mixtures of the same at an elevated temperature in the presence of a low molecular weight silicone oil or other solvent until an ionically cross-linked zwitterionic siloxane polymer of a gel-like consistency is formed.
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