US 11,692,154 B2
Dimethicone copolyol composition and its application as an additive in detergent composition to enhance foamability and cleaning effect
Amit Kumar Paul, Kolkata (IN); Kalon Chatterjee, Kolkata (IN); Arjun Ghosh, Kolkata (IN); and Pallab Mondal, Kolkata (IN)
Assigned to WACKER METROARK CHEMICALS PVT LTD, West Bengal (IN)
Appl. No. 17/284,570
Filed by Wacker Metroark Chemicals PVT LTD, Bishnupur (IN)
PCT Filed Sep. 20, 2019, PCT No. PCT/IB2019/057969
§ 371(c)(1), (2) Date Apr. 12, 2021,
PCT Pub. No. WO2020/074986, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 18200091 (EP), filed on Oct. 12, 2018.
Prior Publication US 2021/0309936 A1, Oct. 7, 2021
Int. Cl. C11D 1/82 (2006.01); C08G 77/46 (2006.01); C11D 3/00 (2006.01); C11D 3/20 (2006.01)
CPC C11D 1/82 (2013.01) [C08G 77/46 (2013.01); C11D 3/0094 (2013.01); C11D 3/2093 (2013.01)] 10 Claims
 
1. A solid foamable silicone composition comprising:
a) 10 to 35% of a silicone composition comprising:
a siloxane comprising a polyoxyalkylene group represented by the following general formula:
(R13-aYaSiO1/2)j(R32-bYbSiO2/2)k(R22SiO2/2)p,  (I)
wherein, R1 is the same or different and is an alkyl, alkenyl or aryl alkyl group having 1-20 carbon atoms, or an alkyl, alkenyl or aryl alkyl group having 1-20 carbon atoms and comprising a functional group, or mixtures thereof,
Y is a polyoxyalkylene group having 19 to 30 oxyethylene groups,
R2 and R3 are the same or different and is an alkyl, alkenyl or aryl alkyl group having 1-20 carbon atoms, or an alkyl, alkenyl or aryl alkyl group having 1-20 carbon atoms and comprising a functional group,
wherein,
a is 0 or 1, b is 0 or 1 or 2,
where if a is 0 then p is 0 or an integer from 1 to 3, and if a is 1 then p is 0 or an integer from 1 to 50,
j and k are independent of each other and are 0 or an integer from 1 to 50, where either j or k or both is at least 1,
with the proviso that the siloxane contains at least one Y radical per molecule,
b) 55 to 90% of a filler, wherein the filler is a carrier filler selected from the group consisting of sodium carbonate, sodium sulfate, aluminum silicate, potassium carbonate, potassium sulfate, sodium bicarbonate, potassium bicarbonate, and zeolite,
wherein when b is 1 or 2 and a is 0, the siloxane has at least a pendant polyoxyalkylene group, and a number of silicon units in the siloxane with the pendant polyoxyalkylene group is 3 to 6; and
when b is 0 and a is 1, the siloxane has at least a terminal polyoxyalkylene group, and a number of silicon units in the siloxane with the terminal polyoxyalkylene group is 15 to 20.