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Composition of quinone methide derivatives and amines for control and inhibition of polymerization of monomers, and method of preparation and use thereof

A technology of quinone methides and compositions, which is applied in the field of controlling and inhibiting the polymerization of monomers and the polymerization of aromatic vinyl monomers, and can solve the problems of inhibitor consumption and exhaustion

Active Publication Date: 2015-06-17
DORF KETAL CHEM (I) PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem with this composition is that the inhibitor it employs is continuously and gradually depleted, and therefore, the inhibitor must be added continuously or intermittently or at least it must be ensured that the proper amount of inhibitor is maintained in the system [US'635 No. 4 column, lines 7-13]

Method used

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  • Composition of quinone methide derivatives and amines for control and inhibition of polymerization of monomers, and method of preparation and use thereof
  • Composition of quinone methide derivatives and amines for control and inhibition of polymerization of monomers, and method of preparation and use thereof
  • Composition of quinone methide derivatives and amines for control and inhibition of polymerization of monomers, and method of preparation and use thereof

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Embodiment

[0171] The invention will now be described with the aid of the following examples, which are not intended to limit the scope of the invention.

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Abstract

The present invention relates to additive composition for control and inhibition of polymerization of monomers including styrene, wherein the composition consists of: (a) one or more of quinone methide derivatives; and CHARACTERIZED IN THAT the composition further comprises: (b) one or more of tertiary amines, wherein said tertiary amine is selected from a group consisting of: (i) tri isopropanol amine (TIPA), (ii) Nu,Nu,Nu',Nu'-Tetrakis (2-hydroxyethyl) ethylene-diamine) (THEED), and (iii) mixture thereof. In one embodiment, the present invention relates to method of preparation thereof and uses thereof, and a method for controlling and inhibiting polymerization of monomers including styrene.

Description

technical field [0001] The present invention relates to quinone methide (quinone methide, QM) derivatives and amines for controlling and inhibiting the polymerization of aromatic vinyl monomers (may be referred to as "monomers or monomer streams"), especially styrene additive composition. [0002] In one embodiment, the present invention relates to a method of preparing an additive composition comprising a quinone methide (QM) derivative and an amine for controlling and inhibiting the polymerization of monomers, especially styrene. [0003] In another embodiment, the present invention relates to a method for controlling and inhibiting the polymerization of aromatic vinyl monomers including styrene by using an additive composition comprising quinone methide (QM) derivatives and amines method. [0004] In another embodiment, the present invention relates to the use or method of controlling and inhibiting the polymerization of monomers, especially styrene, using an additive com...

Claims

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Application Information

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IPC IPC(8): C07C7/20C08F2/40C09K15/18C09K15/24
CPCC07C7/20C08F2/38C08F2/40C07C15/46C08F12/08C08F2/42C08F12/06C09K15/18C09K15/24C08F112/08
Inventor 马赫什·苏布拉马尼亚姆
Owner DORF KETAL CHEM (I) PTE LTD
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