Fragrance releasing non-volatile polymeric siloxanes

Details Fragrance releasing non-volatile polymeric siloxanes Fragrance releasing non-volatile polymeric siloxanes

1999-10-20

2000-06-20

Dawson, Robert

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 15, 424401, L08G 7706

Patent

active

060779233

ABSTRACT:
A fragrance releasing siloxane comprising a substituent having the formula (R.sup.1 O).sub.a (R.sup.2 O).sub.b (R.sup.3 O).sub.c (R.sup.4).sub.d (R.sup.5).sub.e SiR.sup.U with R.sup.U a two to forty atom divalent hydrocarbon radical where R.sup.1, R.sup.2 and R.sup.3 are derived from the group of fragrant esters, ketones, or aldehydes, each independently having the structure: R.sup.7 --CH.dbd.C(O--)--R.sup.8, with R.sup.4 and R.sup.5 selected from the group consisting of monovalent hydrocarbon radical having from one to forty carbon atoms and monovalent alkoxy radicals having from one to forty carbon atoms, where the subscript a has a value ranging from 1 to 3 and the subscripts b, c, d, and e have values ranging from 0 to 2 subject to the limitation that a+b+c+d+e=3; R.sup.7 is selected from the group consisting of hydrogen and monovalent hydrocarbon radicals having from one to one hundred carbon atoms and R.sup.8 is selected from the group consisting of hydrogen and monovalent hydrocarbon radicals having from one to one hundred carbon atoms where the subscript a has a value ranging from 1 to 3 and the subscripts b, c, d, and e have values ranging from 0 to 2 subject to the limitation that a+b+c+d+e=3.

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