JPS5821438A - Vinyl chloride resin composition - Google Patents

Abstract

PURPOSE:To prepare the titled composition having excellent chalking resistance and outdoor exposure stability, by compounding a copper chelate complex compound or copper acetate to a vinyl chloride resin. CONSTITUTION:The objective composition is prepared by mixing 100pts.wt. of a vinyl chloride resin with 0.001-0.5pt.wt., preferably 0.01-0.2pt.wt. of a compound selected from copper chelate complex compounds (e.g. copper dimethyldithiocarbamate, copper butylxanthogenate, etc.) and copper acetate.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a vinyl chloride resin composition that is stable against outdoor exposure.

Vinyl chloride resin is a general-purpose thermoplastic resin that is unstable against heat and light, and may become colored during heat molding, reduce mechanical strength, or have poor weather resistance when molded products are used outdoors. JK has a major drawback of poor quality.The surface of rain vise window decking materials used outdoors for long periods of time undergoes a whitening phenomenon called chalking on the surface exposed to sunlight, which significantly impairs the appearance.

To improve these defects, molded products are made by selectively adding metal soaps, lead-based compounds, organic tin-based compounds, ultraviolet absorbers, ultraviolet stabilizers, lubricants, fillers, colorants, etc. to vinyl chloride resin. However, a vinyl chloride resin composition that is stable against chalking has not yet been obtained.

In view of this situation, the inventors of the present invention conducted extensive studies and found that a copper chelate complex compound and acetic acid steel have a chalking prevention effect, leading to the present invention.

That is, the present invention provides a chlorinated resin containing 1 to α5 parts by weight of (LOO1 to α5 parts by weight) one or more compounds selected from copper chelate complex compounds or acetic acid steel to 100 parts by weight of vinyl chloride resin. This invention relates to vinyl resin compositions.

Examples of the copper chelate complex used in the present invention F114 include diethyldithiocarbamate steel, diethyldithiocarbamate steel, dibutyldithiocarbamate steel,
Diethyldithiocarbamate steel, diethyldithiocarbamate steel, dioctyldithiocarbamate copper, dilauryldithiocarbamate steel, distearyldithiocarbamate copper, dibenzyldithiocarbamate copper, zinc tetrahexyldithiocarpamate steel, dicyclopentyldithiocarbamate copper, diphenyldithiocarbamate Examples include steel, thiocarbamate steels such as sino-7 tyldithiocarbamate steel, and butylxanthogen-decoppered steel.

In the present invention, vinyl chloride resin refers to a homopolymer or copolymer containing vinyl chloride as a constituent monomer. There is no problem even if additives, lubricants, fillers, colorants, and plasticizers coexist.・The amount of one type of compound selected from copper chelate complex compounds or acetic acid steel, or a compound of 2 m or more, is 100
αOCM to α5 parts by weight, preferably α0
A range of 1 to α2 parts by weight is appropriate. Usage amount is (LOO
If 1 part by weight is ungrooved, the anti-slip effect is not sufficient.
If the amount exceeds 0, sii parts, the anti-choking effect will be reduced and the heat resistance stability of the vinyl chloride resin may be lowered.

The copper chelate complex compound or steel acetate may be added to the vinyl chloride resin directly and mixed, or it may be added to the colorant component and then mixed with the vinyl chloride resin.

The present invention will be explained below with reference to Examples.

Example 1 Vinyl chloride resin (Polymerization I & 1100) 100
To parts by weight, 0.3 parts by weight of calcium stearate, 17 parts by weight of zinc stearate, and 0.1 part by weight of dibutyl somalate.
Judobe, Bengara 1f Keibu, polyethylene wax α5Xf
1 part, copper acetate (L11 parts) were mixed for 3 minutes in a high-speed mixer, and kneaded for 5 minutes with two 6-inch rolls at 160°C.
A sheet with a thickness of 1 to 10 mm was prepared using a heat press and exposed outdoors.

Examples 2 to 4 Sheets were prepared in exactly the same manner as in Example 1 except that 1-thiocarbamate steels were used in place of acetic acid steel, or copper acetate and copper thiocarbamates were used in combination in the same amounts, and the sheets were exposed to outdoor exposure. Allegorized.

Comparative Examples 1 to 4 Sheets were prepared in exactly the same manner as in Example 1, except that the amount of copper acetate or thiocarbamate steel used was outside the range of the present invention, and exposed outdoors.

After 12 months, 18 months, and 24 months of exposure on each side.
The degree of color change including chalking after several months was measured using a color difference meter (SS Color Computer 88-1fJ, manufactured by Suga Test Instruments) using a sheet that was not exposed outdoors as a standard, and the color difference was calculated as ΔE.
The values are shown in the table.

The smaller the ΔE value, the greater the chalking prevention effect.

Claims (1)

[Claims] A vinyl chloride resin characterized by containing 0.0 (M to α5 parts by weight of 1 m or 2 or more compounds selected from steel chelate complex compounds or copper acetate) per 100 parts by weight of the vinyl chloride resin. Composition.