IP Library Granted Patent US 9,994,596
Granted Patent B2
US 9,994,596 · App. 15/415,401 · Granted Jun 12, 2018

Process for preparing a composition containing 2-ethylhexyl silicate

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Quick Facts
Patent No.
US 9,994,596
App. No.
15/415,401
Granted
Jun 12, 2018
Kind
B2
Abstract

A composition containing 2-ethylhexyl silicate, is produced by heating a reaction mixture of ethyl silicate with an excess amount of 2-ethylhexanol in the presence of titanium tetrabutoxide as catalyst to a temperature below the boiling point of 2-ethylhexanol while mixing, allowing the reaction mixture to react and, after the reaction, removing ethanol and excess 2-ethylhexanol from the reaction mixture by distillation and obtaining the composition containing 2-ethylhexyl silicate.

Claims (16)

1. A process for preparing a composition containing, 2-ethylhexyl silicate, said process comprising:

heating a reaction mixture of ethyl silicate with an excess amount of 2-ethylhexanol in the presence of titanium tetrabutoxide as catalyst to a temperature below the boiling point of 2-ethylhexanol while mixing,

allowing the reaction mixture to react and,

after the reaction, removing ethanol and excess 2-ethylhexanol from the reaction mixture by distillation and obtaining the composition containing 2-ethylhexyl silicate.

2. The process according to claim 1 ,

wherein the weight ratio of ethyl silicate and 2-ethylhexanol is 1:1.1 to 1:10.

3. The process according to claim 1 ,

wherein the amount of titanium tetrabutoxide is 0.01% to 0.5% by weight, based on the amount of 2-ethylhexyl silicate used.

4. The process according to claim 1 ,

wherein the reaction is conducted at a temperature of 140 to 182° C.

5. The process according to claim 1 ,

wherein the reaction is conducted over a period of 12 to 60 hours.

6. The process according to claim 1 ,

wherein the transesterification reaction is conducted with a yield of ≥95%.

7. The process according to claim 1 ,

wherein said composition comprises a 2-ethylhexyl silicate content of ≥90% by weight.

Assignments (2)
CHANGE OF NAME Recorded Nov 18, 2019
From: EVONIK DEGUSSA GMBH
To: EVONIK OPERATIONS GMBH
Reel/Frame 051045/0872 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2017
From: KRAFCZYK, ROLAND; STANDKE, BURKHARD; KOEPFER, ALEXANDER; ERHARDT, SASCHA
To: EVONIK DEGUSSA GMBH
Reel/Frame 042378/0204 →