Strong virgin's emulsoid

A white latex, strong technology, applied in the field of strong white latex, can solve the problems of water resistance, poor frost resistance, complex polymerization process, long production cycle, etc., to achieve the effect of good water resistance, simple process and low product cost

Inactive Publication Date: 2003-11-19
长春市泰发实业(集团)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the common polyacetate white latex in the market has relatively high cost, complex polymerization process, large equipment investment, long production cycle, and poor water resistance and frost resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Weigh the raw materials according to the following ratio:

[0014] Polyvinyl alcohol 18% starch 2% hydrochloric acid 0.5% formaldehyde 1

[0015] Sodium hydroxide 0.2% Urea 0.2% Water 40%

[0016] The production process is as follows: first immerse polyvinyl alcohol in water, heat for 3 hours, then add the rest of the components, mix and stir evenly.

Embodiment 2

[0018] Weigh the raw materials according to the following ratio:

[0019] Polyvinyl alcohol 25% Sodium hydroxide 0.5% Starch 4% Hydrochloric acid 1%

[0020] Formaldehyde 3% Urea 0.5% Water 70%

[0021] The production process is as follows: first immerse polyvinyl alcohol in water, heat for 4 hours, then add the rest of the components, mix and stir evenly.

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PUM

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Abstract

A strong while emulsion is prepared from polyvinyl alcohol, sodium hydroxide, starch, hydrochloric acid, formaldehyde, urea and water. Its advantages are high resistance to freeze and water, high stability and adhesion, no irritative odor, and low cost.

Description

Technical field: [0001] The invention relates to an adhesive, in particular to a strong white latex. Background technique: [0002] At present, the common polyacetate white latex on the market has relatively high cost, complex polymerization process, large equipment investment, long production cycle, and poor water resistance and frost resistance. Invention content: [0003] The technical problem to be solved by the present invention is to provide a strong white latex with low cost, simple production process, small equipment investment, short production cycle and excellent product performance. [0004] White latex of the present invention is made of following components (weight ratio): [0005] Polyvinyl alcohol 18-25% Sodium hydroxide 0.2-0.5% Starch 2-4% Hydrochloric acid [0006] 0.5-1% Formaldehyde 1-3% Urea 0.2-0.5% Water 40-70% [0007] The production process is as follows: first immerse polyvinyl alcohol in water, heat for 3-4 hours, then add the rest of the comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J129/04
Inventor 郭大伟
Owner 长春市泰发实业(集团)有限责任公司
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