JP2000095914A - Vinyl chloride resin for paste and vinyl chloride resin composition comprising the same, and their preparation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paste vinyl chloride resin to give a paste vinyl chloride resin sol having excellent processability and giving a fabricated article without such problems as the occurrence to surface dry spots and environment pollution, and to provide a paste vinyl chloride resin compsn. comprising the resin. SOLUTION: A vinyl chloride resin for a paste, and a preparing process therefor as well as a vinyl chloride resin compsn. comprising the resin and a preparing process therefor is such that a vinyl chloride resin for a paste contains an aliphatic hydrocarbon with a b.p higher than 300 deg.C and of 0.2-20 pts.wt. relative to 100 pts.wt. of a vinyl chloride-based polymer, with the vinyl chloride resin being formed in such a way that an aq. dispersion of the vinyl chloride-based polymer has an aliphatic hydrocarbon dispersed in it, which aq. dispersion being dried, thus the vinyl chloride resin obtained contains uniformly the aliphatic hydrocarbon.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vinyl chloride resin for pastes and a vinyl chloride resin composition for pastes comprising the same. More specifically, sealants,
Regarding vinyl chloride resin for paste used in the field of wallpaper, flooring materials, etc., the viscosity is low even when filled with a filler represented by calcium carbonate and the like, and the vinyl chloride resin for paste provides good processing characteristics and the same. And a vinyl chloride resin composition for pastes.

[0002]

2. Description of the Related Art Conventionally, a vinyl chloride resin for paste (hereinafter, referred to as paste vinyl chloride) is kneaded with a plasticizer, a stabilizer, a filler or other compounding agents to prepare a paste vinyl chloride sol. The sol is knife coated,
It is processed into various final processed products by various processing methods such as spray molding and used.

[0003] When a paste salt visol is prepared, a filler such as calcium carbonate is generally added for the purpose of reducing the cost of the paste salt visol.

However, when such a filler is added in a large amount, the paste visol obtained naturally has a problem that the sol viscosity becomes high and the fluidity suitable for processing cannot be exhibited. .

[0005] Therefore, a method of diluting the paste salt visol by adding an aliphatic hydrocarbon having a boiling point of 100 to 200 ° C to secure the fluidity of the paste salt visol has been performed.

[0006]

However, if a large amount of the above-mentioned diluent is added at the time of preparing the paste salt visol in order to secure the flowability of the paste salt visol, the workability will not deteriorate. As a matter of course, there are problems such as surface roughness or the like occurring in the processed molded product, resulting in deterioration of physical properties, or deterioration of the working environment due to volatilization of the diluent during processing.

[0007] Accordingly, an object of the present invention is to provide a paste PVC and a paste PVC composition comprising the paste PVC, which do not have the problems of surface roughness of the processed molded product, environmental degradation and the like, and which provide a paste PVC having excellent processing characteristics. To provide.

[0008]

Means for Solving the Problems The present inventors have conducted intensive studies on the above-mentioned problems, and as a result, when preparing a paste PVC sol using paste PVC containing a specific additive,
The present inventors have found that the sol viscosity of the paste salt visol can be kept low without problems such as surface roughness and environmental deterioration of the obtained paste sol processed molded product, and have completed the present invention.

That is, the present invention relates to a paste PVC containing 0.2 to 20 parts by weight of an aliphatic hydrocarbon having a boiling point of 300 ° C. or higher, and a paste PVC composition comprising the paste.

Hereinafter, the present invention will be described in detail.

The paste PVC of the present invention is a paste PVC containing 0.2 to 20 parts by weight of an aliphatic hydrocarbon having a boiling point of 300 ° C. or higher based on 100 parts by weight of a vinyl chloride polymer.

The aliphatic hydrocarbon used in the present invention has a boiling point of 300 ° C. or higher. Here, in the case of an aliphatic hydrocarbon having a boiling point of less than 300 ° C.,
Paste PVC containing the aliphatic hydrocarbon is inferior in storage stability and changes over time, so that the resulting paste PVC has a high sol viscosity, which is not preferable. The boiling point is preferably 600 ° C. or lower, more preferably 300 ° C. or higher and 400 ° C. or lower, in order to maintain high dispersibility when dispersed in paste PVC.

The boiling point in the present invention indicates a value generally used as a boiling point. For example, the boiling point under atmospheric pressure (760 mm
Hg) or a value obtained by converting a value measured under reduced pressure to an atmospheric pressure using a conversion table.

The boiling point used in the present invention is 300 ° C.
As the aliphatic hydrocarbon described above, any aliphatic hydrocarbon having a boiling point of 300 ° C. or more may be used. For example, saturated aliphatic hydrocarbons such as heptadecane, octadecane, and nonadecane; 1-nonadecene, Examples include unsaturated aliphatic hydrocarbons such as eicosene, 2-octadecene, 2-nonadecene, and dococene, and these may be used as a mixture. In the present invention, a paste PVC having a more efficient storage stability and lowering the sol viscosity when a paste PVC sol is prepared can be obtained, so that the unsaturated aliphatic carbon having a boiling point of 300 ° C. or more is obtained. Preferably, hydrogen is used.

The paste PVC of the present invention is a paste PVC containing 0.2 to 20 parts by weight of an aliphatic hydrocarbon having a boiling point of 300 ° C. or more based on 100 parts by weight of a vinyl chloride polymer. When the content of the aliphatic hydrocarbon is less than 0.2 parts by weight, the obtained paste salt visol is not preferable because it has a high sol viscosity. On the other hand, when the content of the aliphatic hydrocarbon is more than 20 parts by weight, the paste PVC having the content is inferior in storage stability, and the resulting paste PVC has a high sol viscosity because of a change with time. This is not preferred.

The paste PVC of the present invention may be composed of any of vinyl chloride homopolymer, vinyl chloride copolymer or a mixture thereof.

As a method for producing the paste PVC of the present invention, any production method can be used as long as the paste PVC of the present invention can be produced. Therefore, a specific example of the method for producing paste PVC of the present invention will be described below, but the present invention is not limited thereto.

The paste PVC of the present invention is obtained by emulsion polymerization of a vinyl chloride monomer or a monomer mixture mainly composed of a vinyl chloride monomer (hereinafter referred to as a vinyl chloride monomer).
Suspension polymerization, fine suspension polymerization, aqueous dispersion of vinyl chloride polymer obtained by polymerization by seed emulsion polymerization, etc.,
It can be produced by adding an aliphatic hydrocarbon having a boiling point of 300 ° C. or higher and drying it with a spray dryer or the like.

The vinyl chloride monomer to be polymerized here is a vinyl chloride monomer alone or a mixture of a vinyl chloride monomer and a vinyl monomer copolymerizable with the vinyl chloride monomer. Examples of the vinyl monomer copolymerizable with the vinyl chloride monomer include, for example, vinyl acetate, vinyl propionate,
Vinyl esters such as vinyl myristate and vinyl benzoate; unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic acid and fumaric acid or anhydrides; acrylic acids such as methyl acrylate, ethyl acrylate and butyl acrylate Esters; methacrylates such as ethyl methacrylate, methyl methacrylate, and butyl methacrylate; unsaturated carboxylic esters such as maleate, fumarate, and cinnamate; vinyl methyl ether, vinyl amyl ether, and vinyl Vinyl ethers such as phenyl ether; monoolefins such as ethylene, propylene, butene and pentene; ordinary vinyls which can be radically copolymerized with vinyl chloride monomers such as vinylidene chloride, styrene, styrene derivatives, acrylonitrile and methacrylonitrile It can be used with one or more compounds.

When the paste PVC of the present invention is produced by an emulsion polymerization method, a suspension polymerization method, a fine suspension polymerization method, a seed emulsion polymerization method or the like, an emulsifier, an emulsification aid It is also possible to use agents.

As the emulsifier, a common anionic emulsifier such as sodium alkylsulfate, sodium alkylbenzenesulfonate and sodium dioctylsulfosuccinate is preferable. As the nonionic emulsifier, for example, polyoxyethylene alkyl allyl ether, polyoxyethylene Ethylene alkyl ester, polyoxyethylene and the like may be used in combination with the anionic emulsifier.

Examples of the emulsifying aid used as required include higher alcohols such as lauryl alcohol and cetyl alcohol; higher fatty acids such as lauric acid and palmitic acid and esters thereof. The amount of the emulsifying aid used is preferably 0.1 to 2.5 parts by weight per 100 parts by weight of the vinyl chloride monomer, in which case the polymerization stability of the vinyl chloride monomer and the processing characteristics of the paste PVC obtained. Is preferable because it is excellent, and 0.3
More preferably, the amount is from 1.0 to 1.0 part by weight.

The polymerization temperature at the time of polymerization of the vinyl chloride monomer is determined by the degree of polymerization of the target vinyl chloride polymer, but is usually in the range of 30 to 70 ° C.

The timing of adding the aliphatic hydrocarbon having a boiling point of 300 ° C. or higher includes addition of a vinyl chloride monomer before, during or after the polymerization, and is not particularly limited. However, in the present invention,
Since the aliphatic hydrocarbon is uniformly dispersed in the strike PVC and does not affect the formation of the vinyl chloride-based polymer during the polymerization, it is preferable after the polymerization of the vinyl chloride-based monomer is completed. It is preferable to add the emulsion in an emulsion because the aliphatic hydrocarbon can be uniformly dispersed in the aqueous dispersion of the vinyl polymer and the aliphatic hydrocarbon is uniformly contained in the obtained paste PVC. Examples of the emulsifier for emulsifying the aliphatic hydrocarbon include nonionic emulsifiers such as polyoxyethylene alkyl allyl ether, polyoxyethylene alkyl ester, and polyoxyethylene; sodium alkyl sulfate and sodium alkyl benzene sulfonate. And the like, and these may be used as a mixture.

Then, by drying the obtained aqueous dispersion of the vinyl chloride polymer, the paste PVC of the present invention can be obtained. The type of the dryer at this time is not particularly limited, and may be a commonly used type.
PLAY DRYING HANDBOOK "(KM
asters), 3rd edition, 1979, GeorgeG
odwin Limited), page 121, FIG. 4.10, and various spray dryers. The drying conditions are generally operated at a drying outlet temperature of 40 to 90 ° C., preferably 40 to 90 ° C.
The drying is carried out at a temperature of from 70 to 70C, more preferably from 40 to 65C. Further, the aqueous dispersion of the vinyl chloride polymer at the time of drying may be any of an aqueous dispersion of a vinyl chloride homopolymer, an aqueous dispersion of a vinyl chloride copolymer, or a mixture thereof.

The paste PVC composition according to the second invention of the present invention comprises 30 to 300 parts by weight of a plasticizer per 100 parts by weight of the paste PVC of the present invention and has excellent processing characteristics. The present invention relates to a composition and a paste PVC composition having excellent processing characteristics, further comprising 10 to 500 parts by weight of a filler with respect to 100 parts by weight of the paste PVC composition.

The plasticizer constituting the paste PVC of the present invention is not particularly limited, and may be a plasticizer generally used as a plasticizer for the paste PVC composition.
Phthalic acid ester plasticizers such as dioctyl phthalate, diisononyl phthalate, dibutyl phthalate, butyl benzyl phthalate, dibutyl phthalate, dihexyl phthalate, diisodecyl phthalate, and other ester compounds composed of higher alcohols having different alkyl groups and phthalic anhydride; trioctyl trimellit; Tate, triisooctyl trimellitate, dioctyl adipate, epoxidized soybean oil, epoxidized fatty acid ester, chlorinated fatty acid ester, tris-β-chloroethyl phosphate, plasticizers such as chlorinated paraffin, and of course, these Two or more plasticizers may be used in combination. And the compounding ratio of the plasticizer is 30 to 300 parts by weight with respect to 100 parts by weight of the paste PVC of the present invention because it is possible to impart excellent processing characteristics to the paste PVC composition of the present invention.
In particular, it is preferably 50 to 150 parts by weight.

The filler constituting the paste PVC composition of the present invention is not particularly limited, and may be those generally used as the filler of the paste PVC composition. Examples of the filler include calcium carbonate, diatomaceous earth, and carbonate. These fillers, such as magnesium and titanium oxide, may be used alone or in combination of two or more. And, since the compounding ratio of the filler can suppress the production cost of the paste PVC composition of the present invention to be low and impart excellent processing characteristics, the plasticizer is added to 100 parts by weight of the paste PVC of the present invention. For a composition consisting of 30 to 300 parts by weight, 10
It is preferably from 500 to 500 parts by weight, particularly preferably from 50 to 200 parts by weight.

The method for producing the paste PVC composition of the present invention is not particularly limited, and a general method for producing a paste PVC composition can be employed.

The paste PVC of the present invention has excellent processing characteristics when the paste PVC is prepared.
The effect of lowering the viscosity of the paste PVC is remarkable as compared with the paste PVC obtained from the conventional paste PVC. From these characteristics, the paste PVC or the paste PVC composition of the present invention is particularly suitable for applications such as wallpaper, flooring, etc., which require a low-viscosity paste PVC sol such as knife coat molding. Things.

[0031]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the present invention.

Example 1 Deionized water 1200 in a 2.5 liter autoclave
g, 20% by weight of sodium lauryl sulfate (40 g), lauryl alcohol (12 g), lauroyl peroxide (0.64 g), and deaeration under reduced pressure. Then, vinyl chloride monomer (800 g) was charged, and the mixture was homogenized with a homogenizer for 75 minutes. After the polymerization, the temperature was raised to 54 ° C. to initiate polymerization. 2 kg from the saturated vapor pressure of vinyl chloride at a polymerization pressure of 54 ° C
/ Cm ² , polymerization was stopped, and unreacted vinyl chloride monomer was recovered to obtain a vinyl chloride polymer latex.

Then, 20 parts by weight of polyoxyethylene alkyl allyl ether as a nonionic surfactant and 200 parts by weight of deionized water were added to 100 parts by weight of 1-octadecene (unsaturated aliphatic hydrocarbon; boiling point: 310 ° C.). 5
After mixing by heating to 0 ° C., the emulsion was stirred and emulsified with a homogenizer for 50 minutes. 1-octadecene was added to the obtained vinyl chloride polymer latex in an amount of 2 parts by weight based on 100 parts by weight of the vinyl chloride polymer. did. Then, the mixed liquid is spray-dried by a dryer to a dryer inlet temperature of 160.
By spray drying at 50 ° C. and a dryer outlet temperature of 50 ° C., paste PVC was obtained.

[0034] Half of the obtained paste PVC was stored in a thermostat at 40 ° C for 7 days.

Then, 60 parts by weight of dioctyl phthalate was blended as a plasticizer with 100 parts by weight of each paste vinyl chloride, and the blend was kneaded at 2500 ° C. for 1.5 minutes using a dissolver mixer at a constant temperature of 25 ° C. A paste PVC composition was obtained.

The viscosity of the obtained paste PVC composition after storage in a thermostat at 25 ° C. for 2 hours was measured using a B8H type viscometer No. 5
20 rpm viscosity (V ₂₀ ′) using a rotor, 1
00 rpm viscosity (hereinafter, V ₁₀₀ ′) was measured. Table 1 shows the measurement results.

The paste PVC composition prepared by the paste PVC after spray drying has a V ₂₀ ′ = 40 poise and a V ₁₀₀ ′
Sol viscosity as low as 30 poise, and a paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days also exhibits a low sol viscosity as V ₂₀ ′ = 41 poise and V ₁₀₀ ′ = 29 poise. Therefore, the storage stability was good, and the paste PVC composition was excellent in processability.

Example 2 A paste PVC was obtained in the same manner as in Example 1.

To 100 parts by weight of each of the obtained pastes, 60 parts by weight of dioctyl phthalate as a plasticizer, 150 parts by weight of calcium carbonate, 15 parts by weight of titanium oxide, and 10 parts by weight of xylene were added. The mixture was kneaded at a constant temperature of 25 ° C. using a dissolver type mixer for 2500 rpm × 1.5 min to obtain a paste PVC composition.

The paste PVC composition was evaluated in the same manner as in Example 1. Table 1 shows the measurement results.

The paste PVC composition prepared by the paste PVC after the spray drying had V ₂₀ ′ = 41 poise and V ₁₀₀ ′
Sol viscosity of 26 poise, and paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days also shows a low sol viscosity of V ₂₀ ′ = 42 poise and V ₁₀₀ ′ = 28 poise. Therefore, the storage stability was good, and the paste PVC composition was excellent in processability.

Example 3 A paste PVC was obtained in the same manner as in Example 1 except that dococene (unsaturated aliphatic hydrocarbon; boiling point: 369 ° C.) was used instead of 1-octadecene, and a paste PVC composition was obtained. I got

The paste PVC composition was evaluated in the same manner as in Example 1. Table 1 shows the measurement results.

The paste PVC composition prepared by the paste PVC after spray drying has a composition of V ₂₀ ′ = 43 poise and V ₁₀₀ ′
Sol viscosity of 31 poise, and paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days also shows a low sol viscosity of V ₂₀ ′ = 43 poise and V ₁₀₀ ′ = 31 poise. Therefore, the storage stability was good, and the paste PVC composition was excellent in processability.

Example 4 A paste PVC was obtained in the same manner as in Example 1 except that nonadecane (saturated aliphatic hydrocarbon; boiling point: 320 ° C.) was used instead of 1-octadecene, and a paste PVC composition was further prepared. Obtained.

The paste PVC composition was evaluated in the same manner as in Example 1. Table 1 shows the measurement results.

The paste PVC composition prepared by the paste PVC after the spray drying was V ₂₀ ′ = 39 poise, V ₁₀₀ ′
Sol viscosity as low as 31 poise, and a paste PVC composition prepared by paste PVC stored for 7 days in a constant temperature bath at 40 ° C. also exhibits a low sol viscosity as low as V ₂₀ ′ = 40 poise and V ₁₀₀ ′ = 28 poise. Therefore, the storage stability was good, and the paste PVC composition was excellent in processability.

Example 5 Paste PVC was obtained in the same manner as in Example 2 except that nonadecane (saturated aliphatic hydrocarbon; boiling point: 320 ° C.) was used instead of 1-octadecene, and a paste PVC composition was further prepared. Obtained.

The paste PVC composition was evaluated in the same manner as in Example 2. Table 1 shows the measurement results.

The paste PVC composition prepared by the paste PVC after spray drying has a V ₂₀ ′ = 40 poise and a V ₁₀₀ ′
Sol viscosity as low as 27 poise, and a paste PVC composition prepared with paste PVC stored in a 40 ° C. constant temperature bath for 7 days also exhibits a low sol viscosity as V ₂₀ ′ = 41 poise and V ₁₀₀ ′ = 29 poise. Therefore, the change with time was good and the workability was excellent.

[0051]

[Table 1]

Comparative Example 1 Paste PVC and a paste PVC composition were prepared in the same manner as in Example 1 except that 1-octadecene was not added and 1-octadecene-free paste PVC was obtained. The PVC composition was evaluated. Table 2 shows the measurement results.

The paste PVC composition prepared by the paste PVC after the spray drying was V ₂₀ ′ = 60 poise, V ₁₀₀ ′
= 40 poise, and a paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days also exhibits a high sol viscosity of V ₂₀ ′ = 59 poise and V ₁₀₀ ′ = 42 poise. Therefore, the workability was poor.

Comparative Example 2 A paste PVC was obtained in the same manner as in Comparative Example 1.

To 100 parts by weight of each obtained paste PVC, 60 parts by weight of dioctyl phthalate as a plasticizer, 150 parts by weight of calcium carbonate, 15 parts by weight of titanium oxide, and 10 parts by weight of xylene were added. The mixture was kneaded at a constant temperature of 25 ° C. using a dissolver type mixer for 2500 rpm × 1.5 min to obtain a paste PVC composition.

The paste PVC composition was evaluated in the same manner as in Example 1. Table 2 shows the measurement results.

The paste PVC composition prepared by the paste PVC after spray-drying has the following composition: V ₂₀ ′ = 63 poise, V ₁₀₀ ′
= 44 poise, and the paste PVC composition prepared by paste PVC stored for 7 days in a 40 ° C. constant temperature bath also exhibits a high sol viscosity of V ₂₀ ′ = 62 poise and V ₁₀₀ ′ = 46 poise. Therefore, the workability was poor.

Comparative Example 3 Paste vinyl chloride and paste vinyl chloride composition were prepared in the same manner as in Example 1 except that a compound which was 1-dodecene (unsaturated aliphatic hydrocarbon; boiling point: 213 ° C.) was added instead of 1-octadecene. A paste was prepared, and the obtained paste PVC composition was evaluated. Table 2 shows the measurement results.

The paste PVC composition prepared by the paste PVC after spray drying has a composition of V ₂₀ ′ = 37 poise and V ₁₀₀ ′
= 29 poise, but the paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days shows a high sol viscosity of V ₂₀ ′ = 63 poise and V ₁₀₀ ′ = 40 poise. Thus, the storage stability was poor, and the processability of the paste PVC composition was poor.

Comparative Example 4 Paste PVC was obtained in the same manner as in Example 2 except that 1-dodecene (unsaturated aliphatic hydrocarbon; boiling point: 213 ° C.) was used in place of 1-octadecene. A composition was obtained.

The paste PVC composition was evaluated in the same manner as in Example 1. Table 2 shows the measurement results.

The paste PVC composition prepared by the paste PVC after the spray drying had V ₂₀ ′ = 41 poise and V ₁₀₀ ′
= 27 poise, but the paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days has a high sol viscosity of V ₂₀ ′ = 60 poise and V ₁₀₀ ′ = 44 poise. Thus, the storage stability was poor, and the processability of the paste PVC composition was poor.

Comparative Example 5 Paste PVC and a paste PVC composition were prepared in the same manner as in Example 1 except that a compound which was tridecane (saturated aliphatic hydrocarbon; boiling point: 235 ° C.) was added instead of 1-octadecene. The obtained paste PVC composition was evaluated. Table 2 shows the measurement results.

The paste PVC composition prepared by the paste PVC after spray drying has the following formula: V ₂₀ ′ = 38 Poise V ₁₀₀ ′ =
Although the paste PVC composition was 31 poise, the paste PVC composition prepared by paste PVC stored for 7 days in a 40 ° C.
₂₀ '= 61 poise, V _100' since illustrates a high sol viscosity of = 42 poises, poor storage stability,
Moreover, the processability of the paste PVC composition was poor.

Comparative Example 6 Paste PVC and a paste PVC composition were prepared in the same manner as in Example 2 except that a compound which was tridecane (saturated aliphatic hydrocarbon; boiling point: 235 ° C.) was added instead of 1-octadecene. The obtained paste PVC composition was evaluated. Table 2 shows the measurement results.

The paste PVC composition prepared by the paste PVC after spray drying has a composition of V ₂₀ ′ = 36 poise and V ₁₀₀ ′
= 27 poise, but the paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days shows a high sol viscosity of V ₂₀ ′ = 61 poise and V ₁₀₀ ′ = 45 poise. Thus, the storage stability was poor, and the processability of the paste PVC composition was poor.

Comparative Example 7 Paste PVC and a paste PVC composition were prepared in the same manner as in Example 1 except that the amount of 1-octadecene added was 0.1 part by weight. An evaluation was performed. Table 2 shows the evaluation results.

The paste PVC composition prepared by the paste PVC after spray drying has a composition of V ₂₀ ′ = 57 poise and V ₁₀₀ ′
= 38 poise, and a paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days also exhibits a high sol viscosity of V ₂₀ ′ = 56 poise and V ₁₀₀ ′ = 39 poise. Therefore, the workability was poor.

Comparative Example 8 Except that the amount of 1-octadecene was changed to 25 parts by weight,
Paste PVC and a paste PVC composition were prepared in the same manner as in Example 1, and the obtained paste PVC composition was evaluated. Table 2 shows the evaluation results.

The paste PVC composition prepared by the paste PVC after the spray drying was V ₂₀ ′ = 35 poise, V ₁₀₀ ′
= 25 poise, but the paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days shows a high sol viscosity of V ₂₀ ′ = 60 poise and V ₁₀₀ ′ = 41 poise. Thus, the storage stability was poor, and the processability of the paste PVC composition was poor.

Comparative Example 9 Paste PVC and a paste PVC composition were prepared in the same manner as in Example 1 except that a compound which was decane (saturated aliphatic hydrocarbon; boiling point: 174 ° C.) was added instead of 1-octadecene. The obtained paste PVC composition was evaluated. Table 2 shows the measurement results.

The paste PVC composition prepared by the paste PVC after spray-drying had V ₂₀ ′ = 50 poise and V ₁₀₀ ′
= 35 poise, but the paste PVC composition prepared by paste PVC stored in a 40 ° C. constant temperature bath for 7 days shows a high sol viscosity of V ₂₀ ′ = 60 poise and V ₁₀₀ ′ = 41 poise. Thus, the storage stability was poor, and the processability of the paste PVC composition was poor.

[0073]

[Table 2]

[0074]

The paste PVC obtained according to the present invention comprises:
Due to its excellent storage stability, the paste PVC composition obtained therefrom is excellent in storage stability, and furthermore, has excellent sol viscosity characteristics, so that its industrial value is extremely high.

Claims (9)

[Claims] 1. An aliphatic hydrocarbon having a boiling point of 300 ° C. or more is added in an amount of 0.2 parts by weight to 100 parts by weight of a vinyl chloride polymer.
20 to 20 parts by weight of a vinyl chloride resin for paste, wherein the aliphatic hydrocarbon is uniformly dispersed in an aqueous dispersion of the vinyl chloride polymer, and the paste is obtained by drying the aqueous dispersion. A vinyl chloride resin for a paste, wherein the aliphatic hydrocarbon is uniformly contained in the vinyl chloride resin. 2. The vinyl chloride resin for paste according to claim 1, wherein the aliphatic hydrocarbon is an unsaturated aliphatic hydrocarbon. 3. An aliphatic hydrocarbon having a boiling point of 300 ° C. or more per 100 parts by weight of a vinyl chloride-based polymer before, during or after the polymerization of the vinyl chloride-based monomer.
The method for producing a vinyl chloride resin for a paste according to claim 1 or 2, wherein the addition is performed so that the amount of the vinyl chloride resin becomes from 20 to 20 parts by weight, followed by drying. 4. The method for producing a vinyl chloride resin for a paste according to claim 3, wherein the aliphatic hydrocarbon is added after being emulsified. 5. A vinyl chloride for a paste, comprising 30 to 300 parts by weight of a plasticizer based on 100 parts by weight of the vinyl chloride resin for a paste according to claim 1 or 2. Resin composition. 6. A vinyl chloride resin composition for a paste, comprising 10 to 500 parts by weight of a filler based on 100 parts by weight of the vinyl chloride resin composition for a paste according to claim 5. 7. An aliphatic hydrocarbon having a boiling point of 300 ° C. or more based on 100 parts by weight of a vinyl chloride-based polymer before, during or after the polymerization of the vinyl chloride-based monomer.
After being added so as to be 20 parts by weight, it is dried to produce a vinyl chloride resin for a paste, and then a plasticizer 30 to
The method for producing a vinyl chloride resin composition for a paste according to claim 5, wherein 300 parts by weight are added. 8. Before, during or after the polymerization of the vinyl chloride-based monomer, 0.2 parts of an aliphatic hydrocarbon having a boiling point of 300 ° C. or more per 100 parts by weight of the vinyl chloride-based polymer.
After being added so as to be 20 parts by weight, it is dried to produce a vinyl chloride resin for a paste, and then a plasticizer 30 to
The method for producing a vinyl chloride resin composition for a paste according to claim 6, wherein 300 parts by weight and 10 to 500 parts by weight of a filler are added. 9. The method for producing a vinyl chloride resin composition for pastes according to claim 7, wherein the aliphatic hydrocarbon is added after being emulsified.