IP Library Granted Patent US 7,279,503
Granted Patent B1
US 7,279,503 · App. 10/978,094 · Granted Oct 9, 2007

Water in oil emulsions

Assignee: Siltech LLC
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Quick Facts
Patent No.
US 7,279,503
App. No.
10/978,094
Granted
Oct 9, 2007
Kind
B1
Abstract

The invention relates to emulsions of the W/O (water/oil) type made using specific emulsifiers and oils selected from silicone oil, mineral oil and combinations thereof. Silicone emulsifier conforming to the following structure: wherein; a is an integer ranging from 2 to 10; b is an integer ranging from 2 to 10, such that b/a>or=1, but less than 2.5; c is (a+b) times x, wherein x is 1.5 to 2.5; d is an integer ranging from 6 to 12; are used to obtain the desired W/O (water/oil) type emulsion.

Claims (24)

1. A water in oil emulsion, which comprises:

A. a silicone emulsifier conforming to the following structure:

wherein;

a is an integer ranging from 2 to 10;

b is an integer ranging from 2 to 10 such that b/a>or=1, but less than 2.5;

c is (a+b) times x, wherein x is 1.5 to 2.5;

d is an integer ranging from 6 to 12;

n is an integer ranging from 9 to 15;

B. an oil phases selected from the group consisting of silicone fluid conforming to the following structure;

wherein;

y is an integer ranging from 2 to 2,000;

and hydrocarbon conforming to the following structure:

CH 3 —(CH 2 ) z —CH 3

wherein

z is an integer ranging from 20 to 60;

and

C. water;

wherein the concentration of the silicone emulsifier ranges from 1% to 5% by weight, the concentration of the oil phase ranges from 40% to 85% and the concentration of water ranges from 59.5% to 12% by weight.

2. A water in oil emulsion of claim 1 wherein n is 11.

3. A water in oil emulsion of claim 2 wherein said oil phase is a silicone fluid.

4. A water in oil emulsion of claim 2 wherein said oil phase is a hydrocarbon.

5. A water in oil emulsion of claim 1 wherein n is 15.

6. A water in oil emulsion of claim 5 wherein said oil phase is a silicone fluid.

7. A water in oil emulsion of claim 5 wherein said oil phase is a hydrocarbon.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 26, 2010
From: O'LENICK, ANTHONY J., JR., MR.
To: SILTECH LLC
Reel/Frame 025536/0935 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 26, 2010
From: SILTECH LLC
To: SILTECH CORPORATION
Reel/Frame 025555/0845 →