JP2017088872A - Chlorosulfonated polyolefin composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chlorosulfonated polyolefin composition having excellent water resistance and acid resistance.SOLUTION: A chlorosulfonated polyolefin composition has aliphatic glycidyl ether, epoxidized polybutadiene or epoxidized oil at the rate of 3-50 pts.wt. to chlorosulfonated polyolefin 100 pts.wt.SELECTED DRAWING: None

Description

  The present invention relates to a chlorosulfonated polyolefin composition, and more particularly to a chlorosulfonated polyolefin composition having good water resistance and acid resistance.

  Chlorosulfonated polyolefin has excellent heat resistance, weather resistance, ozone resistance, chemical resistance and light color, so various hose cover materials, wire coating materials, packing, gaskets, rolls, escalator handrails, etc. It is used for various applications. In addition, chlorosulfonated polyolefin is dissolved or dispersed in a solvent or water and used in applications such as adhesives, coating agents, paints, and primers.

  On the other hand, since the chlorosulfonated polyolefin has a chloro group in the polymer, acid components derived from these may be liberated due to excessive thermal deterioration. For this reason, it is necessary to add compounding agents, such as an acid acceptor, in order to prevent liberation of acidic gas from the inside of a system (for example, refer patent document 1).

  However, in general, a chlorosulfonated polyolefin composition using magnesium oxide as an acid acceptor has poor water resistance and acid resistance, and is difficult to use in applications where it comes into contact with water or chemicals. Therefore, a chlorosulfonated polyolefin composition having good water resistance and acid resistance has been desired.

Japanese Patent No. 2817239

  The present invention has been made in view of the above-described problems, and provides a chlorosulfonated polyolefin composition having good water resistance and acid resistance.

  As a result of intensive studies to solve the above problems, the present inventors have found that a chlorosulfonated polyolefin composition containing a specific liquid epoxy compound instead of magnesium oxide has a remarkable effect. The present invention has been completed. That is, the present invention is a chlorosulfonated polyolefin composition comprising 3 to 50 parts by weight of aliphatic glycidyl ether, epoxidized polybutadiene or epoxidized oil with respect to 100 parts by weight of chlorosulfonated polyolefin.

  The chlorosulfonated polyolefin composition of the present invention has better water resistance and acid resistance than conventionally known chlorosulfonated polyolefin compositions. Therefore, the resin product using the composition of the present invention has a high durability that is not conventionally used in applications where water and acidic compounds are easily contacted.

  The present invention is described in detail below.

  The chlorosulfonated polyolefin composition of the present invention contains 3 to 50 parts by weight of aliphatic glycidyl ether, epoxidized polybutadiene or epoxidized oil with respect to 100 parts by weight of chlorosulfonated polyolefin.

  The chlorosulfonated polyolefin contained in the chlorosulfonated polyolefin composition of the present invention is not particularly limited as long as it is a chlorosulfonated polyolefin obtained by chlorinating and chlorosulfonated a raw material polyolefin. And chlorosulfonated ethylene-α-olefin copolymer, chlorosulfonated α-olefin polymer, and chlorosulfonated ethylene-vinyl acetate copolymer. Examples of the raw material polyolefin include polyethylene, ethylene-α-olefin copolymer, α-olefin polymer, ethylene-vinyl acetate copolymer, and the like. Examples of the α-olefin include propylene, 1-butene, 1-pentene, 1-hexene, 4-methyl-1-pentene, 1-octene and 1-decene. Examples of the raw material polyethylene include high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), and very low density polyethylene (VLDPE). These may be used alone or in combination. Can be used. Moreover, the polyolefin which is a raw material may be copolymerized with other polymerizable components. Examples of other polymerizable components include 1,4-hexadiene, 1,6-octadiene, 2-methyl-1,5-hexadiene, 6-methyl-1,5-heptadiene, 7-methyl-1,6. -Chain non-conjugated dienes such as octadiene, cyclohexadiene, dicyclopentadiene, methyltetrahydroindene, 5-vinyl-2-norbornene, 5-ethylidene-2-norbornene, 5-methylene-2-norbornene, 5-isopropylidene- Non-conjugated dienes such as cyclic non-conjugated dienes such as 2-norbornene and 6-chloromethyl-5-isopropenyl-2-norbornene.

  The solvent used for chlorination and chlorosulfonation of the polyolefin as a raw material is not particularly limited, but carbon tetrachloride, chloroform, dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloroethane, A solvent inert to the chlorination reaction such as tetrachloroethane, monochlorobenzene, dichlorobenzene, fluorobenzene, dichlorodifluoromethane, trichlorofluoromethane, etc. is preferable. In order to obtain a polyolefin having particularly good physical properties, 1,1, 2-trichloroethane is most preferred. The amount to be used as the solvent is not particularly limited, but an amount in which the raw material polyolefin is 5 to 50% by weight is preferable.

  The reaction process for chlorination and chlorosulfonation is carried out using a radical initiator as a catalyst with chlorine gas and sulfurous acid gas, chlorine gas and sulfuryl chloride, sulfurous acid gas and sulfuryl chloride, sulfuryl chloride alone, or chlorine gas, sulfurous acid gas and sulfuryl chloride. And reacting with a polyolefin dissolved or suspended in a solvent. When sulfuryl chloride is added, an amino compound such as pyridine or quinoline as a co-catalyst is added as necessary. The reaction temperature is not particularly limited as long as the chlorination reaction and the chlorosulfonation reaction proceed. For example, the reaction temperature is 40 to 150 ° C., and an appropriate chlorination reaction proceeds, preferably 60 to 130. ° C. The reaction pressure is not particularly limited as long as the chlorination and chlorosulfonation reactions proceed. For example, the reaction pressure is 0 to 1.0 megapascal, and preferably 0 because the appropriate chlorination and chlorosulfonation reactions proceed. ~ 0.7 megapascals.

  The radical initiator used is not particularly limited as long as the chlorination reaction proceeds, and examples thereof include azo compounds and organic oxides. Examples of the azo compound include α, α′-azobisisobutyronitrile, azobiscyclohexanecarbonitrile, 2,2′-azobis (2,4-dimethylvaleronitrile), and organic oxides. Examples thereof include benzoyl peroxide, acetyl peroxide, t-butyl peroxide, and t-butyl perbenzoate. An azo compound is preferred because of its high stability in handling, and α, α'-azobisisobutyronitrile is particularly preferred since moderate chlorination and chlorosulfonation reactions proceed.

  After completion of the chlorination and chlorosulfonation reactions, hydrogen chloride and / or sulfurous acid gas remaining in the reaction solution is removed by introducing nitrogen. Moreover, there is no problem even if chlorine hydrogen and / or sulfurous acid gas is removed under reduced pressure.

  Steam distillation, drum dryers, and vented extruders are known as methods for separating the product polymer from the solvent, and both are separated by these methods.

  The aliphatic glycidyl ether, epoxidized polybutadiene or epoxidized oil contained in the chlorosulfonated polyolefin composition of the present invention preferably has an epoxy equivalent of 130 to 400 in terms of excellent water resistance and acid resistance, and 150 It is more preferable that it is -240, and it is preferable that molecular weight or number average molecular weight is 150-10000, and it is more preferable that it is 1000-6000.

  Examples of the aliphatic glycidyl ether include aliphatic compounds having glycidyl ether in the molecule, methyl glycidyl ether, ethyl glycidyl ether, n-propyl glycidyl ether, i-propyl glycidyl ether, n-butyl glycidyl ether, i- Butyl glycidyl ether, tert-butyl glycidyl ether, n-pentyl glycidyl ether, n-hexyl glycidyl ether, 2-ethylhexyl glycidyl ether, lauryl glycidyl ether, cyclohexyl glycidyl ether, ethylene glycol diglycidyl ether, 1,4-butanediol diglycidyl Examples include ether, neopentyl glycol diglycidyl ether, glycerin glycidyl ether, and the like.

  Examples of the epoxidized polybutadiene include those obtained by epoxy-modifying polybutadiene and are not particularly limited. For example, commercially available products include NISSO-PB JP-100 and JP-200 (both manufactured by Nippon Soda Co., Ltd.). ), Epolide PB3600, 4700 (both manufactured by Daicel Corporation), Adekasizer BF-1000 (manufactured by ADEKA Corporation), Ricon657 (manufactured by Clay Valley), etc., or a combination of these alone or in combination of two or more Can be used.

  The epoxidized oil represents an epoxidized fatty acid ester and is not particularly limited. For example, epoxidized tall oil fatty acid-2-ethylhexyl ester, epoxidized-9-octadecanoic acid (Z) propylene glycol ester, epoxy And soybean oil, epoxidized linseed oil, epoxidized fatty acid ester and the like.

  Among these liquid epoxy compounds, epoxidized oil or epoxidized polybutadiene is preferable, and epoxidized polybutadiene is more preferable in terms of excellent water resistance of the composition.

  The aliphatic glycidyl ether, epoxidized polybutadiene, or epoxidized oil of the present application may be used alone or in combination of two or more.

  The content of aliphatic glycidyl ether, epoxidized polybutadiene, or epoxidized oil in the chlorosulfonated polyolefin composition of the present invention is 100 parts by weight of chlorosulfonated polyolefin in terms of water resistance, acid resistance, and processability. 3 to 50 parts by weight. When the content is less than 3 parts by weight, the water resistance and acid resistance are insufficient, and when it exceeds 50 parts by weight, the workability is deteriorated due to adhesion of the compound.

  The method for producing a chlorosulfonated polyolefin composition containing an aliphatic glycidyl ether, epoxidized polybutadiene or epoxidized oil is not particularly limited. For example, after completion of the chlorosulfonated reaction or after the chlorosulfonated polyolefin and the solvent are mixed. Examples include kneading using a compounding agent before or after the separation step, and the components can be divided and added in a plurality of steps.

  The chlorosulfonated polyolefin composition of the present invention is blended with plasticizers, fillers, reinforcing agents, anti-aging agents, lubricants, processing aids, vulcanizing agents, vulcanization accelerators and the like used in conventional rubbers or resins. An agent may be included. A chlorosulfonated polyolefin composition that is not blended or obtained by blending is generally used as a vulcanized product or an unvulcanized product. The compounding agents used are DOP, DOZ, DOA, DOS, TOTM, rapeseed oil, linseed oil, paraffin oil, naphthenic oil, aroma oil, chlorinated paraffin, kaolin clay, calcined clay, talc, magnesium silicate, hydroxylated Magnesium, aluminum hydroxide, calcium carbonate, titanium oxide, barium sulfate, carbon black, silica, amine-based anti-aging agent, phenol-based anti-aging agent, hydroquinone-based anti-aging agent, nickel-based anti-aging agent, fatty acid ester, paraffin wax, Examples include polyethylene wax, coumarone-indene resin, high styrene resin, tetramethylthiuram tetrasulfide, N, N'-1,3-phenylenedimaleimide, peroxides, pentaerythritol, triallyl isocyanurate, etc. .

  The final use of the chlorosulfonated polyolefin composition of the present invention is the same as that of the existing chlorosulfonated polyolefin, and is not particularly limited. Pleasure boats, roofing, pound liners, rolls, belts, boots, packings, sheets, pulling cloths, adhesives, paints, sealants and the like can be mentioned.

  EXAMPLES Next, although this invention is demonstrated concretely based on an Example, this invention is limited to a present Example and is not interpreted.

  In addition, the value used in these Examples was obtained based on the following measuring methods.

<Measurement of acid generation amount of unvulcanized compound>
A sample of 0.5 g was heated at 175 ° C. for 90 minutes, the generated gas was collected with 4 mmol NaOH aqueous solution, and the absorption liquid was measured by ion chromatography. Chlorine ions were quantified from the obtained chromatogram, and the amount of acid generated per gram of CSM (chlorosulfonated polyolefin) was calculated.

<Rheometer vulcanization test>
Measurement was performed at 160 ° C. for 30 minutes using RUBBER PROCESS ANALYZER RPA 2000 manufactured by ALPHA TECHNOLOGIES, and the maximum torque value (MH) and 90% vulcanization time (Tc90) were determined according to JIS K 6300.

<Hardness of vulcanized rubber>
In accordance with JIS K 6253, hardness (HS) was measured using a durometer hardness meter.

<Tensile test of vulcanized rubber>
Based on JIS K 6251, tensile strength (TB) and elongation at break (EB) were measured.

<Water resistance and acid resistance test>
Based on JIS K 6258, the volume swelling ratio after being immersed in water, 20% hydrochloric acid and 10% nitric acid at 80 ° C. for 7 days was measured.

  Tables 1 and 2 show the aliphatic glycidyl ether, epoxidized polybutadiene, or epoxidized oil used in the examples.

また、実施例で使用した配合剤の内容は以下の通りである。

Moreover, the content of the compounding agent used in the Example is as follows.

Chlorosulfonated polyethylene: TOSO-CSM TS-530 (manufactured by Tosoh Corporation)
Magnesium oxide: Kyowa mug # 150 (manufactured by Kyowa Chemical Industry Co., Ltd.)
Processing aid: Splendor R-300 (fatty acid ester) (manufactured by Kao Corporation)
Carbon black: Seast SO (manufactured by Tokai Carbon Co., Ltd.)
Plasticizer: Toyoparax A40S (chlorinated paraffin) (manufactured by Tosoh Corporation)
Noxeller TRA (vulcanizing agent) (Ouchi Shinsei Chemical Co., Ltd.)
Pentaerythritol (Vulcanization Accelerator): Neuriser P (manufactured by Nippon Synthetic Chemical Industry Co., Ltd.)
Barnock PM (vulcanizing agent) (Ouchi Shinsei Chemical Co., Ltd.)
NOCRACK NBC (vulcanization accelerator) (Ouchi Shinsei Chemical Co., Ltd.)
Dicumyl peroxide: Park mill D (manufactured by NOF Corporation)
Triallyl isocyanuric acid: Thaik (manufactured by Nippon Kasei Co., Ltd.)
Example 1
To 100 parts by weight of chlorosulfonated polyethylene, 3 parts by weight of epoxidized polybutadiene, 3 parts by weight of processing aid, 50 parts by weight of carbon black and 10 parts by weight of plasticizer are added using a Banbury mixer, and an open roll kneader is further added. Using, 2 parts by weight of Noxeller TRA and 3 parts by weight of pentaerythritol were added to obtain a chlorosulfonated polyethylene composition. The obtained chlorosulfonated polyethylene composition was subjected to an acid generation amount measurement of a non-vulcanized compound and a rheometer vulcanization test. Further, the obtained chlorosulfonated polyethylene composition was press vulcanized at 160 ° C. for 20 minutes to obtain a vulcanized product. The obtained vulcanizate was subjected to a tensile test, a water resistance test, and an acid resistance test. These results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 9%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 10% and 42%, respectively.

実施例２
エポキシ化ポリブタジエン１ ５重量部を用いた以外は実施例１と同様にクロロスルホン化ポリエチレン組成物を得て、未加硫コンパウンドの酸発生量測定、レオメータ加硫試験、引張試験、耐水性試験、耐酸性試験を行い、それらの結果を表３に示す。表３から、水に対する体積膨潤率が５％、２０％塩酸および１０％硝酸に対する体積膨潤率がそれぞれ８％及び３８％と良好であった。

Example 2
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 5 parts by weight of epoxidized polybutadiene was used, and the acid generation amount measurement of the unvulcanized compound, rheometer vulcanization test, tensile test, water resistance test, An acid resistance test was conducted and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 5%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 8% and 38%, respectively.

Example 3
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 30 parts by weight of epoxidized polybutadiene 1 was used, and the acid generation amount measurement of the unvulcanized compound, the rheometer vulcanization test, the tensile test, the water resistance test, An acid resistance test was conducted and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 4%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 6% and 31%, respectively.

Example 4
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 50 parts by weight of epoxidized polybutadiene was used and press vulcanized at 160 ° C. for 30 minutes, and the acid generation amount of the unvulcanized compound was measured. Tests, tensile tests, water resistance tests, and acid resistance tests were conducted, and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 5%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 5% and 24%, respectively.

Example 5
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 10 parts by weight of epoxidized polybutadiene 2 was used, and the acid generation amount measurement of the unvulcanized compound, the rheometer vulcanization test, the tensile test, the water resistance test, An acid resistance test was conducted and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 6%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 7% and 31%, respectively.

Example 6
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 10 parts by weight of epoxidized polybutadiene 3 was used, and the acid generation amount measurement of the unvulcanized compound, the rheometer vulcanization test, the tensile test, the water resistance test, An acid resistance test was conducted and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 7%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 9% and 35%, respectively.

Example 7
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 10 parts by weight of epoxidized polybutadiene 4 was used, and an acid generation amount measurement of a non-vulcanized compound, a rheometer vulcanization test, a tensile test, a water resistance test, An acid resistance test was conducted and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 6%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 8% and 28%, respectively.

Example 8
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 15 parts by weight of glycerin polyglycidyl ether was used and press vulcanized at 160 ° C. for 30 minutes, and the acid generation amount of the unvulcanized compound was measured. Tests, tensile tests, water resistance tests, and acid resistance tests were conducted, and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 4%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 10% and 38%, respectively.

Example 9
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 15 parts by weight of ethylene glycol polyglycidyl ether was used and press vulcanized at 160 ° C. for 30 minutes, and the acid generation amount of the unvulcanized compound was measured and the rheometer was added. A sulfur test, a tensile test, a water resistance test, and an acid resistance test were conducted, and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 5%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 8% and 40%, respectively.

Example 10
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 20 parts by weight of epoxidized soybean oil was used, and the acid generation amount measurement of the unvulcanized compound, rheometer vulcanization test, tensile test, water resistance test, An acid resistance test was conducted and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 6%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 10% and 32%, respectively.

Example 11
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 15 parts by weight of epoxidized linseed oil was used, and the acid generation amount measurement of the unvulcanized compound, the rheometer vulcanization test, the tensile test, the water resistance test, An acid resistance test was conducted and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 5%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 8% and 35%, respectively.

Example 12
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 25 parts by weight of epoxidized fatty acid octyl ester was used, and acid generation measurement, rheometer vulcanization test, tensile test, water resistance test of unvulcanized compound was obtained. The acid resistance test was conducted, and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 5%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 7% and 31%, respectively.

Example 13
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 25 parts by weight of the epoxidized fatty acid alkyl ester was used, and the acid generation amount of the unvulcanized compound was measured, the rheometer vulcanization test, the tensile test, and the water resistance test. The acid resistance test was conducted, and the results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 4%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 9% and 29%, respectively.

Example 14
The chlorosulfonated polyethylene composition was the same as in Example 1 except that 15 parts by weight of epoxy polybutadiene 2 was used, and 3 parts by weight of Barnock PM and 2 parts by weight of Nocrack NBC were used instead of 2 parts by weight of Noxeller TRA and 3 parts by weight of pentaerythritol. The product was obtained, and the acid generation amount measurement, the rheometer vulcanization test, the tensile test, the water resistance test, and the acid resistance test of the unvulcanized compound were performed. The results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 3%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 4% and 4%, respectively.

Example 15
Chloroform as in Example 1 except that 15 parts by weight of epoxy polybutadiene 2 was used and 3 parts by weight of dicumyl peroxide and 4 parts by weight of triallyl isocyanuric acid were used instead of 2 parts by weight of Noxeller TRA and 3 parts by weight of pentaerythritol. A sulfonated polyethylene composition was obtained, and an acid generation amount measurement, a rheometer vulcanization test, a tensile test, a water resistance test, and an acid resistance test of an unvulcanized compound were performed. The results are shown in Table 3. From Table 3, the volume swelling ratio with respect to water was 1%, and the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 2% and 2%, respectively.

Comparative Example 1
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 5 parts by weight of magnesium oxide was used instead of 3 parts by weight of epoxidized polybutadiene and press vulcanized at 160 ° C. for 10 minutes. An acid generation amount measurement, a rheometer vulcanization test, a tensile test, a water resistance test, and an acid resistance test were performed, and the results are shown in Table 4. From Table 4, the volume swelling ratio with respect to water was 31%, the volume swelling ratio with respect to 20% hydrochloric acid and 10% nitric acid was 41% and 103%, respectively, and the water resistance and acid resistance were insufficient.

比較例２
エポキシ化ポリブタジエン１ １重量部を用いた以外は実施例１と同様にクロロスルホン化ポリエチレン組成物を得て、未加硫コンパウンドの酸発生量測定、レオメータ加硫試験、引張試験、耐水性試験、耐酸性試験を行い、それらの結果を表４に示す。表４から、水に対する体積膨潤率が２２％、２０％塩酸および１０％硝酸に対する体積膨潤率がそれぞれ２８％及び７２％と耐水性及び耐酸性が不十分であった。

Comparative Example 2
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 1 part by weight of epoxidized polybutadiene 1 was used, and the acid generation amount measurement of the unvulcanized compound, rheometer vulcanization test, tensile test, water resistance test, An acid resistance test was conducted and the results are shown in Table 4. From Table 4, the volume swelling ratio for water was 22%, the volume swelling ratio for 20% hydrochloric acid and 10% nitric acid was 28% and 72%, respectively, and the water resistance and acid resistance were insufficient.

Comparative Example 3
A chlorosulfonated polyethylene composition was obtained in the same manner as in Example 1 except that 60 parts by weight of epoxidized polybutadiene 1 was press vulcanized at 160 ° C. for 40 minutes, and the acid generation amount of the unvulcanized compound was measured and the rheometer vulcanized. Tests, tensile tests, water resistance tests, and acid resistance tests were conducted, and the results are shown in Table 4. From Table 4, the volume swelling ratio for water was 8%, the volume swelling ratio for 20% hydrochloric acid and 10% nitric acid was 4% and 22%, respectively, and the water resistance and acid resistance were good. The processability was bad.

  Since the chlorosulfonated polyolefin composition of the present invention has good water resistance and acid resistance, it is blended and kneaded in the same manner as conventional rubber or resin, and is used in vulcanized or unvulcanized products. Used in the area.

Claims (4)

A chlorosulfonated polyolefin composition comprising 3 to 50 parts by weight of aliphatic glycidyl ether, epoxidized polybutadiene or epoxidized oil with respect to 100 parts by weight of chlorosulfonated polyolefin. 4. The chlorosulfonated polyolefin composition according to claim 1, wherein the aliphatic glycidyl ether, the epoxidized polybutadiene, or the epoxidized oil has an epoxy equivalent of 130 to 400. 5. The chlorosulfonated polyolefin composition according to any one of claims 1 to 3, wherein the aliphatic glycidyl ether, epoxidized polybutadiene, or epoxidized oil has a number average molecular weight of 150 to 10,000. The chlorosulfonated polyolefin composition according to any one of claims 1 to 3, further comprising a compounding agent.