IP Library Granted Patent US 7,276,541
Granted Patent B2
US 7,276,541 · App. 10/933,613 · Granted Oct 2, 2007

Use of hydroxyl-functional polyalkylorganosiloxanes as solvents for cationic photoinitiators for use in radiation- curable silicones

Assignee: Goldschmidt AG
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Quick Facts
Patent No.
US 7,276,541
App. No.
10/933,613
Granted
Oct 2, 2007
Kind
B2
Abstract

The invention provides for the use of hydroxyl-functional polyalkylorganosiloxanes of the general formula (IV) as solvents for cationic photoinitiators and for the use of these solutions in cationically curable silicones.

Claims (10)

1. A mixture comprising:

A) at least one hydroxyl-functional polyalkylorganosiloxanes selected from the group consisting of:

B) at least one cationic photoinitiator.

2. The mixture as claimed in claim 1 , wherein the cationic photoinitiator is a diaryliodonium salt.

3. The mixture as claimed in claim 2 , wherein the diaryliodonium salts is a compound selected from the group consisting of

4. The mixture as claimed in claim 1 , wherein the cationic photoinitiator is a triarylsulfonium salt.

5. A cationically curable composition which comprises at least one organopolysiloxanes, which contains at least one UV reactive group and that cures cationically under UV radiation, and the mixture according to claim 1 .

6. An adhesive coating which is obtained by reacting the cationically curable composition according to claim 1 with UV light.

7. A method for increasing the storage shelf life of a solution comprising of at least one cationic photoinitiator which comprises dissolving the cationic photoinitiator in a solvent comprising at least one hydroxyl-functional polyalkylorganosiloxanes selected from the group consisting of:

as a solvent for cationic photoinitiators whereby the solution is stable for at least six months.

Assignments (4)
MERGER Recorded Feb 26, 2014
From: EVONIK GOLDSCHMIDT GMBH
To: EVONIK DEGUSSA GMBH
Reel/Frame 032335/0326 →
CHANGE OF NAME Recorded Feb 22, 2010
From: GOLDSCHMIDT GMBH
To: EVONIK GOLDSCHMIDT GMBH
Reel/Frame 024016/0789 →
CHANGE OF NAME Recorded May 20, 2005
From: GOLDSCHMIDT AG
To: GOLDSCHMIDT GMBH
Reel/Frame 016038/0250 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 3, 2004
From: DOEHLER, HARDI; OESTREICH, SASCHA
To: GOLDSCHMIDT AG
Reel/Frame 015773/0907 →
Priority Claims (1)
DE 103 41 137 · Sep 6, 2003 · national
Continuity (1)
Related Publication 20050054769A1 · Mar 10, 2005