Thickening solvents with elastomeric silicone polyethers

Details Thickening solvents with elastomeric silicone polyethers Thickening solvents with elastomeric silicone polyethers

1997-06-02

1999-03-30

Marquis, Melvyn I.

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...

524861, 524709, 524714, 524722, 524725, 524726, 524755, 524762, 524765, 524770, 524773, 524774, 524792, 528 15, 424 7011, 424 7012, 424 7803, C08J 8302, C08K 8302, C08L 8304

Patent

active

058891080

ABSTRACT:
Low molecular weight siloxane fluids are thickened by silicone elastomers. The silicone elastomers are made by combining in one pot an .tbd.Si--H containing siloxane, a mono-alkenyl polyether, an alpha, omega-diene, and a low molecular weight siloxane fluid. An elastomer, i.e. gel, with polyether groups is produced. The elastomer can be swollen with the low molecular weight siloxane fluid under shear force, to provide a uniform silicone paste. The silicone paste has excellent spreadability upon rubbing, and possesses unique rheological properties in being thixotropic and shear thinning. The silicone paste can be easily emulsified with water to form a stable uniform emulsion, without using a surfactant to allow normally immiscible materials to become intimately mixed.

REFERENCES:
patent: 5236986 (1993-08-01), Sakuta
patent: 5412004 (1995-05-01), Tachibana et al.
patent: 5654362 (1997-08-01), Schulz et al.
patent: 5811487 (1998-09-01), Schulz et al.

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