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Long chain alkyl modified silicon oil and synthetic process thereof

A technology of long-chain alkyl and synthesis process, which is applied in the field of long-chain alkyl modified silicone oil and its synthesis process, which can solve problems such as troublesome operation, high equipment investment, and long reaction time, and achieve the effect of convenient operation

Active Publication Date: 2009-05-20
JIANGXI BLUESTAR XINGHUO SILICONE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The reaction conditions of this invention are relatively harsh, and the reaction time is also relatively long, which leads to high energy consumption and high equipment investment
The pretreated olefin compound needs to pass through a glass column filled with neutral alumina under the protection of an inert gas, and the operation is cumbersome

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1, the synthetic technique of long-chain alkyl modified silicone oil:

[0032] The purpose of the first stage is to properly reduce the hydrogen content of the high-hydrogen-containing methyl hydrogen-containing silicon raw material to obtain an intermediate product of methyl hydrogen-containing silicone oil.

[0033] 600-1000 grams of high-hydrogen-containing methyl hydrogen-containing silicon raw material and 40-100 grams of hexamethyldisiloxane in the weight ratio, under the action of 40-100 grams of catalyst in the first stage, at 50-80 ° C React at low temperature for 1-6 hours, filter, and remove low-volatile substances at 110-150°C and a pressure lower than 0.01MPa until the weight content of low-volatile substances is less than 2%; obtain an intermediate product of methyl hydrogen-containing silicone oil;

[0034] The purpose of the second stage is to obtain long-chain alkyl modified silicone oil from the intermediate product of methyl hydrogen-contai...

Embodiment 2

[0038] Embodiment 2, the synthetic technique of long-chain alkyl modified silicone oil:

[0039] 1000 grams of high hydrogen-containing methyl hydrogen-containing silicon raw materials and 40 grams of hexamethyldisiloxane in the weight ratio are reacted at 50 ° C for 6 hours under the action of 100 grams of catalyst in the first stage, filtered, and 110°C and lower than 0.01MPa pressure to remove low-volatile matter to a weight content of less than 2% of low-volatile matter; to obtain an intermediate product of methyl hydrogen-containing silicone oil;

[0040] Under nitrogen protection, add catalyst H to α-olefins with a carbon chain length of 20 2 PtCl 6 ; Catalyst H 2 PtCl 6 Add 1 ppm of α-olefin based on Pt; add 65 grams of methyl hydrogen-containing silicone oil intermediate product to 308 grams of α-olefin with a carbon chain length of 20 in weight ratio, and react at 100 ° C 4 hours; at 110°C and under a pressure of less than 0.01MPa, the low volatile matter is remov...

Embodiment 3

[0043] Embodiment 3, the synthetic technique of long-chain alkyl modified silicone oil:

[0044] 600 grams of high-hydrogen-containing methyl hydrogen-containing silicon raw materials and 100 grams of hexamethyldisiloxane in the weight ratio are reacted at 80 ° C for 1 hour under the action of 40 grams of catalyst in the first stage, filtered, and 150°C and lower than 0.01MPa pressure to remove low-volatile matter to a weight content of less than 2% of low-volatile matter; to obtain an intermediate product of methyl hydrogen-containing silicone oil;

[0045] Under nitrogen protection, add catalyst H to α-olefins with a carbon chain length of 8 2 PtCl 6 ; Catalyst H 2 PtCl 6 Add 5 ppm of α-olefin based on Pt; add 222 grams of methyl hydrogen-containing silicone oil intermediate product to 123 grams of α-olefin with a carbon chain length of 8 in weight ratio, and react at 120 ° C 1 hour; at 150°C and under a pressure of less than 0.01MPa, the low-volatile matter is removed u...

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Abstract

The invention relates to long-chain alkyl modified silicone oil which is obtained by the reaction of methyl hydric silicone material containing dense hydrogen and hexamethyl disiloxane and being modified by Alpha-alkene. The long-chain alkyl modified silicone oil can be applied as an excellent metal release agent. The invention also relates to a synthetic process of the long-chain alkyl modified silicone oil; wherein, under the protection of nitrogen, 65g to 222g of methyl hydric silicone oil intermediate product is added in a dripping manner to 123g to 308g of Alpha-alkene which is prepared by weight ratio and with a carbon length of 8 to 20 and the mixture reacts for 1 hour to 4 hours at the temperature of 100 DEG C to 120 DEG C; at the temperature of 110 DEG C to 150 DEG C and under a pressure lower than 0.01 MPa, the low-volatile substance is removed until the content of the low-volatile substance is less than 2 percent; and the long-chain methyl modified silicone oil is obtained.The invention adopts a platinum catalysts-isopropanol-acetylacetone-acetoacetate acetoacetic ester system which is conducive to rendering the reaction condition of the invention milder and the reaction time shorter. The method is easier and quicker to be operated.

Description

technical field [0001] The invention relates to a long-chain alkyl modified silicone oil and a synthesis process thereof, in particular to a modified long-chain alkyl modified silicone oil and a synthesis process thereof. Background technique [0002] In the prior art, the abstract of ""Preparation of Long-chain Alkyl Silicone Oil" / 2004 Volume 31, No. 2 "Journal of Beijing University of Chemical Technology: Natural Science Edition" / Lin Jun, Yan Baozhen, School of Science, Beijing University of Chemical Technology" is as follows: -Olefin compounds and hydrogen-containing silicone oil are used as raw materials to synthesize long-chain alkyl silicone oil by hydrosilation reaction under the action of platinum catalyst-isopropanol system. The influence of various reaction conditions was examined, and the optimal reaction conditions were determined: the mass ratio of the reaction raw material α-olefin compound to the low-hydrogen silicone oil was 35:52.5; the reaction temperature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/38B22C3/00
Inventor 章淑娥廖桂根陈卫东肖赣湘贺志江
Owner JIANGXI BLUESTAR XINGHUO SILICONE CO LTD
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