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Aqueous polymer-silicon oil hybrid composition

一种组合物、聚合物的技术，应用在油墨、涂层、家里用具等方向，能够解决有效性低、昂贵等问题，达到良好应用性能的效果

Active Publication Date: 2017-05-17
BASF SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of mono(meth)acrylate functionalized poly(dimethylsiloxane) is expensive
Because the PDMS groups are chemically attached to an inert polymer, its effectiveness as a surface additive in polar coating formulations is low

Method used

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  • Aqueous polymer-silicon oil hybrid composition
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  • Aqueous polymer-silicon oil hybrid composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0173] A particularly preferred embodiment of the method of the invention comprises the following steps:

[0174] i. dissolving the non-polymerizable silicone oil in the ethylenically unsaturated monomer M;

[0175] ii. emulsifying the solution of non-polymerizable silicone oil obtained in step i. in water containing at least one surfactant, whereby a conventional oil-in-water emulsion (coarse emulsion) is obtained;

[0176] iii. The droplet size of the conventional oil-in-water emulsion of step ii. is crushed to obtain an oil-in-water aqueous microemulsion having an average droplet size as determined by dynamic light scattering of less than 1000 nm, especially 20-500 nm, especially 50-400 nm , that is, aqueous O / W emulsion;

[0177] iv. Initiating free radical polymerization in the aqueous oil-in-water microemulsion of step iii.

[0178] Steps i. and ii. can be carried out as consecutive steps or as a single step. That is, the non-polymerizable silicone oil and the ethylen...

Embodiment 1

[0258] 81.6g Silicone Oil 2 (100% active polysiloxane) was dissolved in 68.4g MMA, 6.08g SMA, 1.52g MAA and 0.23g BDDA. The oil phase was added dropwise to a stirred solution of 20.1 g of Surfactant 1 in 202 g of deionized water. The mixture was stirred for 30 minutes and treated by ultrasound at 60% power for 20 minutes per 500 g of emulsion using a Bandelin Sonoplus, Generator GM 2200, 200 W, 20 kHz. A kinetically stable microemulsion was obtained with an average droplet size of 147 nm.

[0259] 3.8 g of a 10% by weight aqueous solution of tert-butyl hydroperoxide were added to the microemulsion. The microemulsion was heated to 40°C. 15.8 g of a 4.8% by weight Rongalit C aqueous solution were added to the reactor within 1 hour at 40°C. The reaction mixture was continuously stirred by a mechanical stirrer and maintained at 60°C for 1 hour, then cooled to 22°C. The pH of the resulting polymer dispersion was then adjusted to 8.6 by adding 0.87 g of AMP and the dispersion wa...

Embodiment 2

[0261] 81.6g Silicone Oil 3 (100% active polysiloxane) was dissolved in 68.4g MMA, 6.08g SMA, 1.52g MAA and 0.23g BDDA. The oil phase was added dropwise to a stirred solution of 20.1 g of Surfactant 1 in 202 g of deionized water. The mixture was stirred for 30 minutes and treated by ultrasound at 60% power for 20 minutes per 500 g of emulsion using a Bandelin Sonoplus, Generator GM 2200, 200 W, 20 kHz. A kinetically stable microemulsion was obtained with an average droplet size of 154 nm.

[0262] 3.8 g of a 10% by weight aqueous solution of tert-butyl hydroperoxide were added to the microemulsion. The microemulsion was heated to 40°C. 15.8 g of a 4.8% by weight Rongalit C aqueous solution were added to the reactor within 1 hour at 40°C. The reaction mixture was continuously stirred by a mechanical stirrer and maintained at 60°C for 1 hour, then cooled to 22°C. The pH of the resulting polymer dispersion was then adjusted to 8.7 by adding 0.48 g of AMP and the dispersion wa...

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Abstract

The present invention relates to aqueous polymer-silicon oil hybrid compositions in the form of aqueous dispersions of finely divided polymer-silicon oil hybrid particles which comprise at least one water-insoluble polymer P made of ethylenically unsaturated monomers M, at least one surface-active substance and at least non-polymerizable, non-polar silicon oil. The present invention relates in particular to the use of these compositions as additives in aqueous coating and printing ink compositions.

Description

[0001] The present invention relates to aqueous polymer-silicone oil hybrid compositions in the form of aqueous dispersions of finely divided polymer-silicone oil hybrid particles comprising at least one water-insoluble polymer P made of ethylenically unsaturated monomers M, at least one surface active substance and at least non-polymerizable non-polar silicone oil. The invention relates in particular to the use of these compositions as additives in aqueous coating and printing ink compositions. [0002] Background of the invention: [0003] Silicone oils with one or more poly(dimethylsiloxy) (PDMS groups) in their polymer chains are widely used as additives in the coating and ink industry. Addition levels of such additives are generally below 1% by weight of silicone oil, based on the entire liquid formulation. These additives impart lower surface tension to the liquid uncured formulation. As a result, defects such as crater formation, fish eyes, substrate dewetting and edge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/26C08F2/30C08F2/44C08F220/14C08F220/18C08F220/06C08F222/14
CPCC08F2/26C08F2/30C08F2/44C08F220/14C08F220/1818C08F220/06C08F222/102C08L83/04C08L33/00C09D11/023C09D11/033C09D11/32C09D11/322C09D11/328C09D183/06C09D183/10C09D183/12C08F22/14
Inventor F·皮龙L·恩格布莱希特C·奥施拉J-U·福格特R·克尼施卡
Owner BASF SE
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