Patent Application
20080014166
52 g of Genapol® TA 250 and 50 g of tetrahydrofuran were heated to 70° C., then 50 μl of Ashby's catalyst (Pt catalyst) and 4 g of dimethylpolysiloxane MHD25 MH were added. A further 31.8 g of MHD25 MH were metered in over the course of 30 minutes and then heated at 90° C. for 10 hours. The course of the reaction was monitored using IR spectroscopy by reference to the Si—H stretch vibration at 2100 cm−1. The reaction solution was cooled to room temperature, 50 g of hexamethyldisiloxane were added and the reaction mixture was heated to 110° C. and the pressure was slowly reduced to 0.5 mmHg.
523 g of MHD80 MH, 226 g of Genapol® TA 250, 215 g of tetrahydrofuran, 0.9 g of a 3% by weight strength solution of H2PtCl6 in 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotrisiloxane were heated at 70° C. to 90° C. for 10 hours. Then, THF was stripped off at 140° C. and a pressure of 0.5 mmHg. The reaction solution was cooled to room temperature, 80 g of hexamethyldisiloxane was added and dissolved. Following filtration, hexamethyldisiloxane was distilled off at reduced pressure.
30 g of Genapol® TA 080 (20 mol % in excess) and 30 g of tetrahydrofuran were heated to 70° C., then 60 μl of Ashby's catalyst and 4 g of dimethylpolysiloxane MHD25MH were added. A further 32 g of MHD25MH was metered in over the course of 30 minutes and then heated at 90° C. for 5 hours. The course of the reaction was monitored using IR spectroscopy by reference to disappearance of the Si—H stretch vibration at 2100 cm-1. The reaction solution was cooled to room temperature, 40 g of hexamethyldisiloxane was added and the reaction mixture heated to 110° C. and the pressure slowly reduced to 0.5 mmHg to strip off THF solvent as well as hexamethyldisiloxane. 62 g of Product was isolated.
24.5 g of Genapol® TA 080 (0 mol % in excess) and 80 mL of Isopropanol were heated to 80° C., then 30 μl of Ashby's catalyst was added. 36 g of dimethylpolysiloxane MHD25MH were gradually added into the reactor over the course of 30 minutes while maintaining the reaction temperature at 80° C. The reaction was continued for another 16 hours at 80° C. The course of the reaction was monitored using IR spectroscopy by reference to disappearance of the Si—H stretch vibration at 2100 cm−1. Isopropanol solvent was removed at 110° C. under vacuum (the pressure was slowly reduced to 0.5 mmHg) to isolate the product.
I Mixing of A and B
II Stirring of C into I, then addition of D
III Homogenization
I Melting of A at about 75° C.
II Heating of B to about 75° C.
III Addition of II to I with stirring and further stirring to 30° C.
IV Addition of C to III at 30° C.
V Adjustment to pH 4.0 with citric acid
I Dissolution of A in B
II Addition of C to I
III Stirring of D into II
IV Dissolution of E in heated water
V Addition of IV to III with stirring
I Successive addition of components B to A with stirring
II Adjust to pH 5 to 7 with citric acid
III Adjustment of the viscosity with C
I Successive addition of components B to A with stirring
II Adjust to pH 5 to 7 with citric acid
III Adjustment of the viscosity with C
I Mixing of A and B
II Stirring of C into 1, then addition of D
III Homogenization
I Mixing of component A
I Swell B in A
II Successive dissolution of the individual components of D in C
III Addition of II to I
IV Adjustment of the pH with E
I Mixing of A and B
II Addition of C to I
III Dissolution of D in warm E, addition of II
IV Adjustment of the pH with F
Blonde, bleached, European hair tresses were each treated under defined conditions with the noninventive standard shampoo as comparison and the Si-copolyol-containing compositions according to invention of examples 8 and 9. The sensory assessment took place in a panel test (10 persons).
The parameters foam stability, wet combability, dry combability and feel of the test formulations are listed below in table 1 (average from all test persons).
The results in table 1 show that in particular the foam stability, the dry combability and very particularly the feel is improved in the presence of the linear alkoxylated polyorganosiloxanes of the formula (I) according to the invention. A significantly improved conditioning effect for the hair is achieved.
In addition, the compositions according to the invention produce a pleasant foam feel and bring about a very finely divided foam.
I Mix A and B and neutralize it (adjust the pH to approx. 7.3).
II Add C and stir until a homogeneous gel has been obtained.
III Mix the components of D, dissolve them by slightly heating and add them to II.
IV Finally add E to III.
I Melt A at 80° C., then add B.
II Melt C at 80° C.
III Mix Stir II into I and stir until cool.
IV At 35° C. add D to III.
V Finally homogenize the emulsion.
Preparation:
