Method of making thick water-in-silicone emulsions

Details Method of making thick water-in-silicone emulsions Method of making thick water-in-silicone emulsions

1998-10-07

2000-09-19

Yoon, Tae

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524266, 524863, 424 7802, 523102, C08L 8306, C08K 5541, A61K 700

Patent

active

06121373&

ABSTRACT:
Thickening can be obtained by adding a silicone latex to the water phase of a water-in-silicone emulsion, instead of adding the silicone latex to the silicone phase of the emulsion. The latex is used in a range of about 0.1-5.0% by weight. Thick emulsions are made by (i) separately preparing a silicone phase containing a silicone polyether and a cyclic siloxane; (ii) separately preparing an aqueous phase containing water and at least one active ingredient; (iii) adding the latex to the aqueous phase; and (iv) combining and mixing the phases.

REFERENCES:
patent: 5302382 (1994-04-01), Kasprzak
patent: 5330747 (1994-07-01), Krzysik
patent: 5399342 (1995-03-01), Krzysik
patent: 5443760 (1995-08-01), Kasprzak
patent: 5599533 (1997-02-01), Stepniewski
patent: 5654362 (1997-08-01), Schulz
patent: 5665804 (1997-09-01), Hill
patent: 5939478 (1999-08-01), Beck et al.

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