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Coating emulsion composition, and water/oil-repellent paper and making method

An emulsion composition, the technology of the composition, applied in the direction of coating, water repellent addition, etc., can solve the problems of difficulty in providing water and oil repellency, impaired water and oil repellency, etc.

Inactive Publication Date: 2008-06-11
SHIN ETSU CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with prior art water-repellent and oil-repellent paper materials blended with organic fluororesins, it is difficult to provide sufficient water-repellent and oil-repellent properties for those paper materials with water-repellent and oil-repellent layers formed on the paper base in order to ensure safety
It must be pointed out that, especially when the paper material is bent into a carton or used as a substrate, the water and oil repellency of the bent part will be significantly damaged

Method used

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  • Coating emulsion composition, and water/oil-repellent paper and making method
  • Coating emulsion composition, and water/oil-repellent paper and making method
  • Coating emulsion composition, and water/oil-repellent paper and making method

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Embodiment

[0106] The present invention will be further described below by way of examples and comparative examples, but the present invention is not limited thereto. All parts and percentages in the examples are by weight.

[0107] Synthesis Example 1

[0108] Charge 498 grams of octamethylcyclotetrasiloxane, 2 grams of triethoxyphenylsilane, 50 grams of 10% aqueous sodium lauryl sulfate and 50 grams of 10% dodecylbenzenesulfonate in a 2 liter polyethylene beaker acid solution. Use a homogeneous mixer to emulsify each component uniformly, and after emulsification, slowly add 400 grams of water for dilution. Then emulsify twice under the pressure of 30 MPa by a high-pressure homogenizer to obtain a uniform white emulsion. The emulsion was then transferred to a 2-liter glass flask equipped with a stirrer, a thermometer, and a reflux condenser, and polymerization was carried out at 50° C. for 24 hours. Aging at 10° C. for 24 hours, then neutralized to pH 6.2 with 12 grams of 10% sodium...

Embodiment 5

[0131] Mix the following ingredients together:

[0132] Component (a): 100 grams of linear methyl polysiloxane (degree of polymerization is 1000, hydroxyl content is 0.004 mol / 100 grams),

[0133] Component (b): 1 g of reaction product of maleic anhydride and 3-aminopropyltriethoxysilane (molar ratio=1 / 1),

[0134] Component (c): 15 grams of untreated dry silicon dioxide (with a BET surface area of ​​200 square meters per gram and an average particle size of 10 nanometers),

[0135] Component (d): linear polysiloxane (the degree of polymerization is 30, the organic group connected to the silicon atom is 10% octyl group, 2% propoxyl group, and the rest is methyl group) 3 grams ,

[0136] Sodium Lauryl Sulfate 10g

[0137] 129 grams of water,

[0138] And use a homogeneous mixer for uniform emulsification to form a uniform white water-based polysiloxane resin emulsion. The emulsion is a water-repellent and oil-repellent polysiloxane-based composition containing 50% active i...

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Abstract

The invention provides a paint latex composition, a water-resistance / oil-resistance paper sheet and a production method thereof. An organic polysiloxane comprising at least two silicon-bonded hydroxyl groups, the reaction product of an amino-containing organoalkoxysilanea dicarboxylic anhydride and an dicarboxylic acid ahhydride, an organic polysiloxane containing long-chain alkyl and alkoxy groups, but free of hydroxyl groups are emulsified and dispersed in water in the presence of a surfactant to form a coating emulsion composition.

Description

technical field [0001] The present invention relates to coating emulsion compositions having coating uniformity characteristics. The present invention also relates to a water-repellent and oil-repellent paper material and a manufacturing method thereof, the paper material can be used for food packaging materials, for outer packaging materials containing paper bases, for outer packaging materials for packaging chocolate and snacks, or for packaging fried Cartons and paper bags for French fries, fried chicken, fried dough rolls, biscuits and cakes, and can be used to pack hamburgers and fried food outer packaging materials. Background technique [0002] For example, Japanese patent application JP-A-5-98579 corresponding to U.S. patent 5,254,621, Japanese patent application JP-A-8-85760, corresponding to U.S. patent 5,827,921 Japanese patent application JP-A-9-208826, corresponding to U.S. patent Disclosed in Japanese patent application JP-A-2000-34410 of 6140414 and Japanese ...

Claims

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Application Information

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IPC IPC(8): C09D183/06D21H21/16C09D7/45
Inventor 大泽芳人山本谦儿渡边泰则
Owner SHIN ETSU CHEM IND CO LTD
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