Silicone-modified water-absorbing polymer particles and method for producing the same
AssigneeKao Corporation
InventorsHiromi Nambu, Tetsuji Kitoh, Yoshihiro Hasebe
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Abstract
This invention provides water-absorbing polymer particles suitable particularly for cosmetics, wherein silicone can be stably present on the surface of a water-absorbing polymer even in various formulations thereby giving dry feeling in use even after water absorption. The silicone-modified water-absorbing polymer particles of this invention comprises water-absorbing polymer particles coated thereon via chemical bonding, with a silicone compound having at least one functional group.
Claims15
A silicone-modified water-absorbing polymer particle comprising:
- i) a water-absorbing polymer particle;
- and
- ii) a silicone compound having at least one amino group,
- wherein a surface of said particle is coated via chemical bonding to said silicone compound having at least one amino group and at least two or more silicon atoms,
- wherein said particle has an average particle size of from 1 to 50 μm.
A cosmetic composition comprising a water-absorbing polymer particle comprising:
- i) a water-absorbing polymer particle;
- and
- ii) a silicone compound having at least one amino group,
- wherein a surface of said particle is coated via chemical bonding to said silicone compound having at least one amino group and at least two or more silicon atoms,
- wherein said particle has an average particle size of from 1 to 50 μm.
Dependencies are inferred from the claim text.