Paper coating latex using ionic monomer

A paper and coating technology, applied in the field of paper coating latex and paper coating composition, can solve the problems of inability to obtain fluidity, increase in shear viscosity, etc., achieve superior printing quality, good stability, and improve ink removal Effect

Inactive Publication Date: 2005-03-02
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, however, the low-shear viscosity unfavorably increases
Therefore, the desired fluidity cannot be obtained only by adjusting the latex particle size, and the latex surface needs to be properly treated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] (step 1)

[0065] After replacing the air with nitrogen in a 10-liter pressure reactor equipped with a stirrer, a thermometer, a cooler and a nitrogen inlet for the continuous feeding of monomers, emulsifiers and polymerization initiators, the following components were added to the reactor minutes, then heated to 65°C:

[0066] Butadiene 33 parts by weight

[0067] 40 parts by weight of styrene

[0068] 12 parts by weight of methyl methacrylate

[0069] Acrylonitrile 8 parts by weight

[0070] 5 parts by weight of itaconic acid

[0071] 4 parts by weight of sodium dodecyl dibenzene sulfonate

[0072] Sodium methallyl sulfonate 2 parts by weight

[0073] Tertiary dodecyl mercaptan 0.15 parts by weight

[0074] Sodium bicarbonate 0.5 parts by weight

[0075] 420 parts by weight of ion-exchanged water

[0076] 1 part by weight of a polymerization initiator, potassium persulfate, was added to the reactor, and the mixture was stirred for about 300 minutes to complet...

Embodiment 2

[0109] Sodium dodecyl diphenyl sulfonate Sodium methallyl sulfonate

[0110] Step 1 4 parts by weight 2 parts by weight

[0111] Step 2 2 parts by weight 0

[0112] Step 3 1.4 parts by weight 0

Embodiment 3

[0114] Sodium dodecyl diphenyl sulfonate Sodium methallyl sulfonate

[0115] Step 1 4 parts by weight 2 parts by weight

[0116] Step 2 0.5 parts by weight 1.5 parts by weight

[0117] Step 3 0.3 parts by weight 1.1 parts by weight

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Abstract

The present invention discloses a paper coating latex containing copolymeric ionic monomer, a paper coating composition containing thereof, and a paper coated with the composition. More specifically, the present invention provides a styrene-butadiene latex for paper coating which contains sodium methallyl sulfonate, an ionic monomer copolymerizing with monomers used in latex manufacturing, as a monomer for emulsion polymerization, and has excellent stability and fluidity, a paper coating composition containing thereof, and a paper coated with the composition.

Description

technical field [0001] The present invention relates to a paper coating latex containing a copolymerized ionic monomer, a paper coating composition containing the same, and paper coated with the composition. [0002] More specifically, the present invention provides styrene-butadiene latex for paper coating, a paper coating composition containing the same, and paper coated with the composition, said latex containing The monomers used are copolymerized ionic monomers as monomers for emulsion polymerization, and the latex has excellent stability and fluidity. Background technique [0003] Generally speaking, by using inorganic pigments, such as clay, calcium carbonate, aluminum hydroxide (Al(OH) 3 ) or titanium dioxide (TiO 2 ) to produce coated paper, in which natural binders, such as casein or starch, or artificial binders, such as styrene-butadiene latex, polyvinyl alcohol or acryl latex are mixed with other additives such as disperse agents, thickeners or insolubilizers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/38C08F212/08C08F220/04C08F236/10C09D109/08D21H19/58
CPCD21H19/58C08F236/10C08F2/38C08F2/22C09D109/08
Inventor 余承旭崔浩烈车完轼梁承勋韩章善
Owner LG CHEM LTD
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