Organo polysiloxane elastomer and use therefor

摘要

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.

主权项

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): wherein, R1 represents a substituted or unsubstituted, straight or branched monovalent hydrocarbon group having from 1 to 30 carbons; R2 each independently represents an alkyl group or a phenyl group having from 1 to 6 carbons; Z is a divalent organic group; i represents a generation of the silylalkyl group represented by Li and is an integer of 1 to k when k is a number of generations that is a number of repetitions of the silylalkyl group; the number of generations k is an integer from 1 to 10; Li+1 is the silylalkyl group when i is less than k, and R2 when i=k, and ai is a number in a range of 0 to 3.