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US 12,721,805 B2Granted
Aminosiloxane ester copolymer and methods for the preparation and use of the copolymer
AssigneeDow Silicones Corporation
InventorsBrian Rekken, Nisaraporn Suthiwangcharoen, Anirudha Banerjee, Zachary Wenzlick, Dawn Carsten, Qian Feng, Kimmai Nguyen
Life of this patent
Estimating the term…
Abstract
An aminosiloxane ester copolymer, an emulsion containing the copolymer, and processes for making the copolymer and the emulsion are provided. The copolymer and the emulsion may be formulated into hair care compositions, such as conditioners and styling products.
Claims20
An aminosiloxane ester copolymer comprises formula:
- where each R1 is an independently selected monovalent hydrocarbon group of 1 to 12 carbon atoms, each RE is independently selected from the group consisting of hydroxyl and an amino-functional group of formula H2N—RA—, each RA is an independently selected divalent hydrocarbon group of 1 to 12 carbon atoms, each R2 is independently selected from the group consisting of hydrogen and methyl, each RD is an independently selected divalent hydrocarbon group of 2 to 20 carbon atoms, each subscript a independently has a value such that 0≤a<220, and subscript b has a value such that 1≤b≤100.
Dependencies are inferred from the claim text.