Brush-Form Alternative Copolymer And Process For Producing The Same
AssigneeShiseido Company, Ltd.
InventorsAtsushi Sogabe, Isamu Kaneda
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Abstract
The invention is an alternating copolymer, and a method of producing the same, obtained by alternately copolymerizing a vinylbenzyl-terminated polyethylene oxide (or polydimethylsiloxane) and a (meth)acryloyl-terminated polydimethylsiloxane (or polyethylene oxide). The alternating copolymer is a novel amphiphilic brush-shaped alternating copolymer having a structure that is well-suited as an emulsifier or a dispersant for oil and silicone solvents commonly used in cosmetics and pharmaceuticals.
Claims8
An alternating copolymer obtained by alternately copolymerizing a vinylbenzyl-terminated polyethylene oxide (or polydimethylsiloxane) and a (meth)acryloyl-terminated polydimethylsiloxane (or polyethylene oxide).
An alternating copolymer having the following repeating unit (1):
- wherein m and n are numbers from 1 to 100, R1 and R2 can be identical or different, each independently representing a hydrogen or a straight chain or a branched alkyl group having 1 to 13 carbon atoms, and R3 is a straight chain or a branched alkylene group having 1 to 13 carbons.
Dependencies are inferred from the claim text.