KR850000154B1 - Stabilizer for polymer having chloride - Google Patents

Abstract

Stabilizer for chlorine-containing resin is a mixture of a zinc compd. having the formula (RCOO)nZn (I) and water-soluble glass (II), where R = C5-C20 aliphatic hydrocarbon residual gp. or cyclic hydrocarbon residual gp., and the aliphatic hydrocarbon residual gp. can be substituted with a hydroxyl gp.; and n = an integer. (II) contains 35-55 mol.% of P2O5, less than 9 mol.% of B2O5, and 30-60 mol.% of M2O (M = alkalimetal). M2O is substituted with SiO2, Al2O3, CaO and MgO within 5 mol.% of total M2O. Weight ratio of (I) to (II) is 100 : 0.1-3.

Description

Stabilizers for Chlorine-containing Resins

The present invention relates to a stabilizer for chlorine-containing resin in which a water-soluble glass is adjusted to a zinc compound having good heat resistance and weather resistance. As a stabilizer for chlorine-containing resins to date, for example, barium compounds, calcium compounds, cadmium compounds, tin compounds, lead compounds, zinc compounds and the like are known. When the barium compound and the calcium compound are added to the chlorine-containing resin, heat resistance may be imparted to the resin product obtained, but the coloring of the chlorine-containing resin is inevitable in the initial stage of manufacturing the product. The weatherability of the was insufficient. In addition, cadmium-based compounds, tin-based compounds and lead-based compounds were expensive and toxic. On the other hand, when the zinc compound is blended with the chlorine-containing resin, the resin is not colored in the initial stage of product manufacturing, and the weather resistance of the obtained product is improved. To this end, zinc-based compounds are often used together with other stabilizers as stabilizers for chlorine-containing resins. However, resin products obtained by blending zinc-based compounds with chlorine-containing resins have a significant drawback in that their heat resistance is significantly lower.

In view of the above problems, the present invention has long been tested and studied to adjust the zinc compound and the water-soluble glass to take advantage of the zinc compound as a stabilizer for chlorine-containing resin and to give excellent heat resistance to the chlorine-containing resin product. The present invention has been completed by inventing that the intended purpose of the present invention can be achieved only when used as a stabilizer for chlorine-containing resin. That is, the stabilizer of the present invention has the advantage as a stabilizer for chlorine-containing resin of the zinc-based compound and can impart excellent heat resistance to the chlorine-containing resin product, when the stabilizer of the present invention is formulated in the chlorine-containing resin, There is no coloring in the initial stage of manufacture, and the weather resistance of the obtained product is greatly improved, and the heat resistance of the product is also greatly improved.

Such an effect of the present invention is exhibited as a ratio only when adjusting the zinc compound and the water-soluble glass. When a stabilizer for chlorine-containing resins other than zinc-based compounds, for example, a tin-based compound and a water-soluble glass, is formed, the desired effect of the present invention is not exhibited at all. As a zinc compound used in this invention, the compound similar to following General formula (I) is used.

(RCOO) _n Zn (I)

In the above formula

R represents an aliphatic hydrocarbon residue or alicyclic hydrocarbon residue having 5 to 20 carbon atoms, and a hydroxyl group may be substituted for this aliphatic hydrocarbon acid group.

n is an integer.

Such zinc-based compounds specifically include zinc isovareic acid, zinc capric acid, zinc laurate, zinc myristic acid, zinc palmitic acid, zinc stearate, zinc myristic acid phosphate, zinc parumate ore, ore. Zinc phosphate, zinc oxylate, zinc liginate phosphate, zinc naphrenate and the like. Inorganic zinc is also used, and may include zinc oxide, zinc carbonate, zinc hydroxide, and the like.

The water-soluble glass used in the present invention can be found in "Advance in glass technology, plenum press New York, 1962, p. 373-375," and Japanese Patent Publication Nos. 56-7976 and 56-17297. Which is contained in a proportion of 35-55 mol%, 9 mol% or less, and 30-60 mol%, respectively, of P ₂ O ₅ , B ₂ O ₂ , and M ₂ O (M is an alkali metal). The components such as SiO ₂ , Al ₂ O ₃ , CaO, MgO, etc. may be substituted within the range of not more than 5 mol% in the above-described M ₂ O components In the present invention, P ₂ O ₅ , B ₂ O ₃ and It is preferable to use a water-soluble gas containing M ₂ O at a ratio of 40-55 mol%, 1.5-8 mol% and 40-60 mol%, respectively. You may use it and may use it in the form of the aqueous solution which adjusted this to suitable density | concentration.

As the chlorine-containing resin to which the stabilizer is applied, conventionally known resins such as vinyl chloride resin, vinyl chloride resin, vinyl chloride acetate resin, vinylidene chloride resin, vinylacryl chloride nitrile resin, vinyl ethylene chloride resin, and the like Vinyl resin vinylidene resins, chlorinated polyethylene, chlorinated tomobilene and the like.

The compounding amount of the stabilizer of the present invention with respect to such a chlorine-containing resin can be appropriately selected within a wide range without particular limitation. For example, the zinc compound is preferably 0.01-3 parts by weight, approximately 0.1-2 parts by weight per 100 parts by weight of chlorine-containing resin. The water-soluble glass is generally 0.01-3 parts by weight, preferably 0.01-1 parts by weight, per 100 parts by weight of chlorine-containing resin, in terms of solid content. As the usage-amount of the zinc compound with respect to the water-soluble glass, it is preferable to make the latter about 0.05-10 weight part with respect to 1 weight part of former electrons).

In adding the stabilizer of the present invention to a chlorine-containing resin, it is preferable to add a mixture of a zinc compound and a water-soluble glass, and these may be added separately as necessary. It is to be noted that these compositions are uniformly dispersed in the resin. For this purpose, for example, a high speed rotary mixer such as a Handel mixer or a dispersant such as sorbitan monotet may be used. Some inorganic fillers such as silica, calcium carbonate, magnesium carbonate, cray, alumina, etc. may be used by adsorbing water-soluble glass.

Moisture in the water-soluble glass may evaporate at the time of molding the resin (usually 140-200 ° C), and as a result, it may cause foaming of the product, so that the resin mixture may be moved around 100 ° C using a high-speed stirrer such as Handelmic. It may be heated or removed by using a Nippon-Frenda. The stabilizer of the present invention is usually used in combination with other known stabilizers for chlorine-containing resins. As a stabilizer used together with the stabilizer of the present invention, for example, a tin stabilizer, a lead stabilizer, a barium stabilizer, a calcium stabilizer, a preliminary clock stabilizer and the like can be pointed out. In this case as well, it is a matter of course that the desired effect of the present invention is exhibited.

Example 1

0.5 part of zinc-based stabilizer and 0.4 part (as 30% aqueous solution) of water-soluble glass (No. 1-8) of 100 parts of vinyl chloride pestresin, 30 parts of thiocylphthalate, and 23 parts of thiocyl acetate. To the composition was added, the composition was added to the aluminum foil to a thickness of 100μ. This was heated to 200 ° C. in an oven, and after 6 minutes, after 9 minutes and after 20 minutes, the coloring degrees were examined, and the results are shown in Table 2 below. Table 2 also shows the results (No. 9) when the water-soluble glass is not used for comparison.

Example 2

Except having often changed the usage-amount of the water-soluble glass 4 of the said Table 1, it is the same as Example 1 and apply | coats in thickness of 100 micrometers on aluminum foil. This was heated to 200 ° C. in an oven, and after 5 minutes, after 8 minutes and after 20 minutes, the sum of the colors was investigated and shown in Table 3 below.

Example 3

Next, various components shown in Table 4 were mixed for 3 minutes at 155 ° C. in two rolls to make a 0.5 mm thick plate using this vertical composition. The time until this becomes black in 200 degreeC oven is measured. The results are shown in Table 3 together. In addition, AC-147 and AP-532 shown in Table 4 are all barium zinc stabilizers of Adegagas, and T-12PJ and ZN-6J are all tin zinc stabilizers of Masuda.

Claims (6)

Stabilizer for chlorine-containing resins, characterized in that the zinc compound and the water-soluble glass in a weight ratio of 100: 0.1-3 parts The stabilizer for chlorine-containing resin according to claim 1, wherein the weight ratio is 100 to 0.1-2 parts. The stabilizer for chlorine-containing resin according to claim 1, wherein the zinc compound is represented by the following general formula (I). (RCOO) _n Zn (I) In the above formula R represents an aliphatic hydrocarbon residue or alicyclic hydrocarbon residue having 5 to 20 carbon atoms, and a hydroxyl group may be substituted for this aliphatic hydrocarbon residue. n is an integer. The composition of claim 1, wherein the composition of the water-soluble glass is P ₂ O ₅ , B ₂ O ₂ and M ₂ O (M is an alkali metal) of 35-55%, 9 mol% or less, and 30-60 mol%, respectively. Stabilizers for Containing Resins The stabilizer for chlorine-containing resin of Claim 4 whose molar ratio is 40-55: 1.5-8: 40-60. The method of claim 4, _{wherein, M 2 O SiO 2, Al} 2 O 3, CaO, containing resin stabilizer substituted by chlorine component of MgO, such as in the range that does not exceed 5 mol% of the component.