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Odorless paper coating latex and paper coating composition containing the same

A technology of coating composition and coating glue, which is applied in coatings, paper coatings, conjugated diene coatings, etc., can solve the problems of incomplete removal of latex petrochemical products, energy consumption, air bubbles and freezing of additional equipment, Reduce polymerization productivity and other issues

Active Publication Date: 2010-12-15
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The other deodorization method mentioned above also has huge energy consumption, requires additional equipment and has problems of generating air bubbles and freezing
If these processes are run continuously, odor will be reduced, but polymerization productivity will also be reduced and latex petrochemicals will not be completely removed

Method used

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  • Odorless paper coating latex and paper coating composition containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (a) Preparation of paper coating latex

[0039] 10 parts by weight of β-cyclodextrin was added to 100 parts by weight of styrene-butadiene paper coating latex having a conversion rate of 98% and a solid content of 50% at room temperature, followed by stirring for 10 minutes and dispersing to prepare paper Coated latex.

[0040] (b) Preparation of paper coating composition

[0041] To 13 parts by weight of the paper coating latex of (a), 60 parts by weight of primary clay, 40 parts by weight of calcium carbonate and 1.3 parts by weight of starch were added. Distilled water was added to the mixture to adjust the solid content of the coating composition to 67.3%, to prepare the paper coating composition of the present invention.

[0042] (c) Preparation of paper

[0043] The stencil paper was coated with the paper coating composition of (b) under the following conditions to obtain the coated paper of the present invention.

[0044] Application: stick coating, No....

Embodiment 2

[0049] For the preparation of the paper coating latex of Example 1, the experiment was carried out in the same manner as described in Example 1, except that 5 parts by weight of β-cyclodextrin was added.

Embodiment 3

[0051] For the preparation of the paper coating latex of Example 1, the experiment was carried out in the same manner as described in Example 1, except that 0.001 parts by weight of β-cyclodextrin was added.

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Abstract

The present invention relates to a paper coating latex and a paper coating composition containing the same, and more precisely, a paper coating latex comprising 0.001 - 10 weight part of cyclo-oligosaccharide compound to 100 weight part of styrene-butadiene latex and a paper coating composition containing the same. According to the present invention, latex petrochemical odors generated during coating processes by non-reacted monomers and volatile organic compounds remaining in the latex can be eliminated without reducing polymerization productivity and latex stability. Therefore, the present invention provides an odorless paper coating latex, a paper coating composition containing the paper coating latex and an inorganic pigment, and a paper coated with the paper coating composition.

Description

technical field [0001] The present invention relates to a paper coating latex and a paper coating composition containing the latex, and more precisely, to an odorless paper coating latex free from the stench of latex petrochemical products during the paper coating process and containing The latex paper coating composition. Background technique [0002] In general, paper coating latexes are prepared by emulsion polymerization. The polymerization conversion rate of this paper coating latex is less than 100%, which means that unreacted monomers or volatile organic compounds remain in the latex, causing foul odor during paper coating and limiting practical use. [0003] In order to remove the odor of petrochemicals generated from unreacted monomers and volatile organic compounds remaining in the paper coating latex, secondary polymerization is performed in which a polymerization initiator is added to the latex that has been reacted to polymerize the unreacted monomer. In anot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/20
CPCC09D5/00C09D7/40C09D7/61C09D109/08D21H19/44
Inventor 韩政洙韩章善崔浩烈梁承勋丁知相
Owner LG CHEM LTD