Organopolysiloxane composition and method of preparation
OwnerHidetoshi Kondo, Masahiro Takahashiinventors
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Abstract
An organopolysiloxane comprising 5 to 99.9 wt % of a crosslinked product of a block copolymer consisting of an organopolysiloxane block and a polyoxyalkylene block bonded to silicon atoms and described by the following general formula -R1(OR2)mOR1-, where R1 and R2 are independently selected alkylene groups, and m is a positive integer and 95 to 0.1 wt % of a fragrance material; the aforementioned organopolysiloxane composition emulsified in water; and a method of preparing the above compositions.
Claims20
An organopolysiloxane composition comprising (A) 5 to 99.9 wt % of a crosslinked product of a block copolymer consisting of an organopolysiloxane block and a polyoxyalkylene block bonded to silicon atoms and represented by the following general formula -R1(OR2)mOR1-, where R1 and R2 are independently selected alkylene groups and mi a positive integer and (B) 95 to 0.1 wt % of a fragrance material.
A method for preparing an organopolysiloxane composition comprising crossing linking an emulsion comprising
- (A) 5 to 99.9 wt % of a crosslinkable organopolysiloxane composition comprising
- (a) 1 part by weight organopolysiloxane having at least two silicon-bonded hydrogen atoms in one molecule,
- (b) 0.01 to 100 parts by weight polyoxyalkylene described by general formula R4(OR2)mOR4, where R2 is an alkylene group, each R4 is an independently selected alkenyl group, and m is a positive integer,
- (c) 0 to 100 parts by weight organopolysiloxane having at least two silicon-bonded alkenyl groups in one molecule, and
- (d) a catalytic amount of a hydrosilation reaction catalyst,
- (B) 95 to 0.1 wt % of a fragrance material, and
- (C) water.
A method for preparing an organopolysiloxane composition comprising crossing linking an emulsion comprising
- (A) 5 to 99.9 wt % of a crosslinkable organopolysiloxane composition comprising
- (a) 1 part by weight organopolysiloxane having at least two silicon-bonded hydrogen atoms in one molecule,
- (b) 0.01 to 100 parts by weight polyoxyalkylene described by general formula R4(OR2)mOR4, where R2 is an alkylene group, each R4 is an independently selected alkenyl group, and m is a positive integer,
- (c) 0 to 100 parts by weight organopolysiloxane having at least two silicon-bonded alkenyl groups in one molecule, and
- (d) a catalytic amount of a hydrosilation reaction catalyst, and
- (B) water;
- and adding thereto
- (C) 95 to 0.1 wt % of a fragrance material.
Dependencies are inferred from the claim text.