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US 8,349,299 B2Granted
Conditioning agent and a method for making hair having a shape memory effect
AssigneeThe Hong Kong Polytechnic University
InventorsJinlian Hu, Yong Zhu, Shaojun Chen, Hongsheng Luo, Jing Lu
Life of this patent
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Abstract
A method of imparting a shape memory effect to hair may include administrating an effective amount of a hair-conditioning agent to hair. The hair-conditioning agent may include a shape memory polymer selected from the group consisting of a polyurethane, an acrylic acid copolymer, a pyridine-based copolymer, and a pyrrolidone copolymer.
Claims18
A method for imparting a shape memory effect to hair, comprising the step of:
- administrating an effective amount of a hair-conditioning agent to hair;
- wherein the hair-conditioning agent comprises a shape memory polymer comprising:
- a polyurethane;
- and wherein the polyurethane is formed from
- (i) an oligomer polyol group;
- (ii) a diisocyanate group;
- and
- (iii) a sealant group selected from the group consisting of
- wherein R1 is a methyl group.
6 more elements
Dependencies are inferred from the claim text.