Organo polysiloxane elastomer and use therefor
First Claim
1. An organopolysiloxane elastomer comprising:
- a group having a siloxane dendron structure represented by L1 that is bonded to a silicon atom, and having a crosslinked structure that includes a carbon-silicon bond in a crosslinking portion;
wherein, L1 is a silylalkyl group having a siloxane dendron structure and, when i=1, represented by following general formula (2);
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Abstract
The present invention relates to an organopolysiloxane elastomer having a group having a siloxane dendron structure bonded to a silicon atom, and having a crosslinked structure that includes a carbon-silicon bond in the crosslinking portion, and relates to a glycerin derivative-modified organopolysiloxane elastomer having a siloxane dendron structure bonded to a silicon atom and a hydrophilic group bonded to a different silicon atom from the silicon atom, and having a crosslinked structure that includes a carbon-silicon bond in the crosslinking portion. The organopolysiloxane elastomer of the present invention, for example, has affinity with a variety of oil agents, has excellent structuring properties and gelling characteristics, and further retains excellent tactile sensation, particularly a velvety thick smoothness, and moreover imparts an excellent tactile sensation from initial application to after drying without producing any stickiness at all, and furthermore, provides superior cosmetic effects, such as wrinkle concealing effect (masking effect), and the like.
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Citations
31 Claims
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1. An organopolysiloxane elastomer comprising:
- a group having a siloxane dendron structure represented by L1 that is bonded to a silicon atom, and having a crosslinked structure that includes a carbon-silicon bond in a crosslinking portion;
wherein, L1 is a silylalkyl group having a siloxane dendron structure and, when i=1, represented by following general formula (2); - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- a group having a siloxane dendron structure represented by L1 that is bonded to a silicon atom, and having a crosslinked structure that includes a carbon-silicon bond in a crosslinking portion;
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24. An organopolysiloxane elastomer production method comprising a step of causing reactions between at least the following:
- (A) an organohydrogenpolysiloxane;
(B) a siloxane dendron having one reactive unsaturated group in a molecule; and (C) at least one organic compound selected from the group consisting of (C1) organic compounds having an average of more than one reactive unsaturated groups in a molecule, and (C2) organic compounds having at least one reactive unsaturated group and at least one epoxy group in a molecule. - View Dependent Claims (25, 26, 27)
- (A) an organohydrogenpolysiloxane;
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28. An organopolysiloxane elastomer production method comprising a step of causing reactions between at least the following:
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(A) an organohydrogenpolysiloxane; (B) a siloxane dendron having one reactive unsaturated group in a molecule; (C) at least one organic compound selected from the group consisting of (C1) organic compounds having an average of more than one reactive unsaturated groups in a molecule, and (C2) organic compounds having at least one reactive unsaturated group and at least one epoxy group in a molecule, provided that the (C) is optional in cases where (D) has an average of more than one reactive unsaturated group in a molecule; and (D) a hydrophilic derivative having a reactive unsaturated group and a hydrophilic group that contains at least one hydrophilic unit selected from the hydrophilic units represented by the structural formulae (3-1) to (3-4). - View Dependent Claims (29, 30, 31)
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Specification