JP2001059026A - Master batch composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition for a synthetic resin, having excellent dispersibility not only in an ordinary molding method for synthetic resin but also in a high-speed molding method and a high concentration of master batch raw material by compounding a specific ester-based compound and the master batch raw material in a specific ratio to the synthetic resin. SOLUTION: This composition comprises (B) 5-300 pts.wt. of an ester-based compound (e.g. dibutyl cellosolve phthalate, etc.), containing at least one ether bond of the formula (X is a 2-12C alkyl, aromatic group or alicyclic dibasic acid residue; R is a 1-15C alkyl; E is a 2-4C alkylene; m is 1-7; n is 0-7) containing 0.1-5.0 wt.% of a perchlorate such as lithium perchlorate, etc., and (C) preferably >=10 pts.wt. of a master batch raw material such as dye, etc., based on (A) preferably 100 pts.wt. of a synthetic resin being a thermoplastic polyolefin-based resin. The composition is useful for coloring a synthetic resin in molding and processing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a masterbatch composition which is added during molding of a synthetic resin for coloring, modifying the resin, and the like.

[0002]

2. Description of the Related Art At present, for example, as a method of adding a dye or pigment for coloring a polyolefin resin, a method of adding a master batch pellet during molding is generally used.
The composition of the masterbatch pellet is mainly composed of base resin, dye and pigment and dispersant (wax + metal soap).
These are mixed, kneaded, and pelletized.However, in this method, the concentration of the dye and pigment in the master batch is limited in order to uniformly disperse the solid dye and pigment. It is a situation that must be used. In addition, when it is desired to add a large amount of various fillers and additives, a large amount of a low-concentration masterbatch must be added, and there is a problem with economic efficiency. The demand for masterbatch pellets is increasing.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a high-concentration masterbatch composition having good dispersibility not only in a general molding method of synthetic resin but also in a high-speed molding method.

[0004]

Means for Solving the Problems The present inventor has made various studies to solve the above-mentioned problems, and as a result, as a masterbatch composition for synthetic resins, perchlorate 0.1 to 5. A compound represented by the following formula containing 0% by weight

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[0005] (Wherein X represents an alkyl group having 2 to 12 carbon atoms, an aromatic group or an alicyclic dibasic acid residue, R represents an alkyl group having 1 to 15 carbon atoms which may be the same or different, and E represents 2 carbon atoms
4 represents an alkylene group, m represents an integer of 1 to 7, and n represents an integer of 0 to 7) A master batch material having a considerably high concentration is obtained by adding a master batch material to 5 to 300 parts by weight. Nevertheless, they found that the dispersibility was extremely good, and reached the present invention.

The synthetic resin used here is not particularly limited, but a polyolefin resin which is considered to have low compatibility with additives is preferred.

The compound represented by formula (I) includes mono- or dibutyl cellosolve phthalate, mono- or dibutyl cellosolve adipate, mono- or diethyl cellosolve phthalate, mono- or diethyl cellosolve adipate, and the like. In addition, mono- or diesters of the following compounds with adipic acid or mono- or diesters with phthalic acid can be mentioned. Of course, mixtures of mono- and diesters are also included. Ethylene glycol monooctyl ether, diethylene glycol monomethyl ether, diethylene glycol also nobutyl ether, diethylene glycol monohexyl ether triethylene glycol monomethyl ether, triethylene glycol monopropyl ether, tetraethylene glycol monoethyl ether, propylene glycol monoethyl ether, propylene glycol monooctyl Ether, dipropylene glycol monobutyl ether, butylene glycol monobutyl ether as the addition amount 5 to 300 parts by weight,
If the amount is less than 5 parts by weight, the effect is small, and if it is more than 300 parts by weight, a bleeding phenomenon occurs on the surface of the molded article to which the master batch is added, which is not preferable.

The perchlorate used here includes lithium perchlorate, sodium perchlorate, potassium perchlorate, barium perchlorate, tetraethylammonium perchlorate, tetrapropylammonium perchlorate, perchloric acid The amount of addition such as tetrabutylammonium is in the range of 0.1 to 5.0% by weight, and 0.1% by weight.
When the content is less than 5.0% by weight or more, the thermal stability of the base resin is impaired and discoloration occurs.

【Example】

[0009]

Examples 1-4, Comparative Example 1 Melt flow rate 1.5
Homopolypropylene resin (PJS; Mitsui Chemicals, Inc.)
100 parts by weight) and 50 parts by weight of phthalocyanine blue (Rio Noble 7110V; manufactured by Toyo Ink Mfg. Co., Ltd.), 3,10,30, and dibutyl cellosolve phthalate containing 1.5% by weight of lithium perchlorate, respectively. 10
After mixing with a mixer of 0 and 200, the mixture was mixed with a mixer, put into an 8-inch two-roll set at 180 ° C., kneaded for 5 minutes, and the sheet taken out with a thickness of about 0.4 mm was cooled and then cooled with a sheet cutter (manufactured by Torai Co., Ltd.) And cut into 6 mm squares to make pellets. This pellet is mixed with the homo-polypropylene resin 1
5 parts by weight were mixed with 00 parts by weight, and kneaded again with an 8-inch two-roll mill for 3 minutes to evaluate the dispersibility of the pigment. Table 1 shows the results
Shown in

[0010]

Comparative Examples 2 and 3 Propylene wax (Viscol 660) was used in place of dibutyl cellosolve phthalate in the examples.
P; 15 parts by weight of Sanyo Chemical Co., Ltd.) or polyethylene wax (Sunwax 131P; Sanyo Chemical Co., Ltd.)
Table 1 shows the results obtained by blending 15 parts by weight and performing the same evaluation as in the examples.

[0011]

Examples 5 to 7 Polyethylene resin (HIZEX 21)
00J; 100 parts by weight of Mitsui Chemicals, Inc., and 30, 50, 100 parts by weight of dibutyl cellosolve phthalate containing 1.5% by weight of lithium perchlorate, titanium oxide (Taipec CR80; manufactured by Ishihara Sangyo Co., Ltd.) To 50, 1 each
The same evaluations as in Examples 1 to 4 were carried out by mixing 00 and 200 parts by weight, and the results are shown in Table 2.

[0012]

Comparative Examples 4 and 5 Instead of dibutyl cellosolve phthalate in Examples 5 to 7, polyethylene wax (Sunwax 131P; manufactured by Sanyo Chemical Co., Ltd.) was 30, 50 respectively.
The same evaluation was performed by blending parts by weight. The results are shown in Table 2.

[0013]

Examples 8 to 10 and Comparative Examples 6 and 7 Polyethylene resin (HIZEX 2100J; manufactured by Mitsui Chemicals, Inc.) 100
Parts by weight, 200 parts by weight of titanium oxide (Taipec CR80; manufactured by Ishihara Sangyo Co., Ltd.), and 100 parts by weight of diethylcellosolve adipate, each containing lithium perchlorate in an amount of 0.0.
3, 1.0, 5.0 and 10.0 parts by weight were blended, and the same evaluation as in Example 1 was carried out, and the sheet was allowed to stand at 25 ° C. for 24 hours.

[0014]

[Table 1]

[0015]

[Table 2]

[0016]

[Table 3]

Claims (3)

[Claims] An ester compound having at least one ether bond represented by the following general formula containing 0.1 to 5.0% by weight of a perchlorate based on 100 parts by weight of a synthetic resin. (Wherein X represents an alkyl group having 2 to 12 carbon atoms, an aromatic group or an alicyclic dibasic acid residue, R represents an alkyl group having 1 to 15 carbon atoms which may be the same or different, and E represents 2 carbon atoms
4 represents an alkylene group, m represents an integer of 1 to 7, and n represents an integer of 0 to 7) 5 to 300 parts by weight, and a masterbatch for synthetic resin comprising a masterbatch raw material of 10 parts by weight or more. Composition. 2. The masterbatch composition for a synthetic resin according to claim 1, wherein the synthetic resin is a thermoplastic polyolefin resin. 3. The master batch raw material contains various process stabilizers, dyes, pigments, antistatic agents, anti-blocking agents,
The masterbatch composition for a synthetic resin according to claim 1, which is an inorganic filler or an organic filler.