JPH0326221B2 - - Google Patents
Info
- Publication number
- JPH0326221B2 JPH0326221B2 JP5163983A JP5163983A JPH0326221B2 JP H0326221 B2 JPH0326221 B2 JP H0326221B2 JP 5163983 A JP5163983 A JP 5163983A JP 5163983 A JP5163983 A JP 5163983A JP H0326221 B2 JPH0326221 B2 JP H0326221B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- vinyl chloride
- parts
- eva
- graft copolymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920000578 graft copolymer Polymers 0.000 claims description 27
- 229920005989 resin Polymers 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 23
- 239000003208 petroleum Substances 0.000 claims description 22
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 19
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 16
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 14
- 239000000178 monomer Substances 0.000 claims description 11
- 230000000379 polymerizing effect Effects 0.000 claims description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005727 Friedel-Crafts reaction Methods 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 4
- 239000012975 dibutyltin dilaurate Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000011342 resin composition Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- GGSRTHRSSCWGGK-UHFFFAOYSA-L 2,2-dibutyl-5-hydroxy-1,3,2-dioxastannepane-4,7-dione Chemical compound CCCC[Sn]1(CCCC)OC(=O)CC(O)C(=O)O1 GGSRTHRSSCWGGK-UHFFFAOYSA-L 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HGXJDMCMYLEZMJ-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOOC(=O)C(C)(C)C HGXJDMCMYLEZMJ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 238000010559 graft polymerization reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229940065472 octyl acrylate Drugs 0.000 description 1
- ANISOHQJBAQUQP-UHFFFAOYSA-N octyl prop-2-enoate Chemical compound CCCCCCCCOC(=O)C=C ANISOHQJBAQUQP-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Description
本発明は、塩化ビニル系グラフト共重合体の引
裂き強さが改良された組成物に関する。さらに詳
しくは、エチレン−酢酸ビニル共重合体（以下
EVAと略す。）の存在下に塩化ビニルモノマーも
しくは塩化ビニルモノマーを主体とするモノマー
混合物を重合させることにより製造される塩化ビ
ニル系グラフト共重合体（以下EVA−塩化ビニ
ルグラフト共重合体と略す。）に石油樹脂を混合
した、該塩化ビニル系グラフト共重合体の引裂き
強さの改良された組成物に関する。
EVA−塩化ビニルグラフト共重合体は、塩ビ
ポリマーの特殊品として、各種用途に使用されて
いる。たとえば、EVA−塩化ビニルグラフト共
重合体中のEVA含有量が15重量％以下のものは、
硬質分野向けにシート、パイプなどの押出成形品
とか射出成形品として、また、EVA含有量が40
重量％程度より多いものは、可塑剤を含まない軟
質分野向けに、シート、ホースなどの押出成形品
として使用されてきた。
しかるに、EVA含有量が15〜40重量％の範囲
のEVA−塩化ビニルグラフト共重合体の引裂き
強さは、奇妙なことに極端に低下し、シート、フ
イルム等の薄膜状の製品としては使用に耐えず、
その用途は限られた分野にとどまつていた。この
ような低い引裂き強さは、EVA含有量が15重量
％以下または40重量％以上のEVA−塩化ビニル
グラフト共重合体では見られず、原因の究明とあ
わせて対応策が望まれていたのである。
本発明者らは、このような特定範囲のEVAを
含有するEVA−塩化ビニルグラフト共重合体の
引裂き強さを改良する方法について鉛意検討した
結果、該グラフト共重合体に特定量の石油樹脂を
混合することによつて、引裂き強さが大巾に改良
されることを見出した。
本発明をさらに詳しく述べれば、酢酸ビニル10
〜50重量％を含むEVAの15〜40重量％に、塩化
ビニルもしくは塩化ビニルを主体とするモノマー
混合物60〜85重量％をグラフト重合して得られた
EVA−塩化ビニルグラフト共重合体70〜95重量
部に、少なくとも一種類の石油樹脂５〜30重量部
を混合することによる、該グラフト共重合体の引
裂き強さが改良された組成物を提供する。
塩化ビニル系ポリマーに石油樹脂を混合するこ
とは、あまり行われておらず、石油樹脂の混合に
よつて塩化ビニル系ポリマーの引裂き強さが改良
されることはこれまで知られていなかつた。また
特定のEVA−塩化ビニルグラフト共重合体に、
特定量の石油樹脂を混合物することによつて引裂
き強さが大巾に改良される事実も知られておら
ず、本発明者らによつてはじめて見出された現象
である。本発明にて用いるEVA−塩化ビニルグ
ラフト共重合体は、EVA15〜40重量部の存在下
に塩化ビニルあるいは、塩化ビニルを主体とする
モノマー混合物60〜85重量部をグラフト共重合す
ることによつて得られる。グラフト共重合は、懸
濁重合、乳化重合、塊状重合、溶液重合のいずれ
かの方法で行われるが、懸濁重合法によるのが、
最も好ましい。
また、EVAは、高圧法、溶液法などのラジカ
ル重合法で得られたものが用いられるが、高圧法
で製造されたものが好適である。EVAの酢酸ビ
ニル含有量は10〜50重量％、メルトインデツクス
は0.1〜500ｇ／10分のものが使用される。上述し
た塩化ビニルモノマーと混合してグラフト共重合
するモノマーとしては、エチルアクリレート、メ
チルアクリレート、オクチルアクリレート、メチ
ルメタアクリレートなどのアクリル酸誘導体やメ
タクリル酸誘導体、エチレン、プロピレンなどの
オレフイン、フマル酸およびマレイン酸エステ
ル、ビニルエーテルおよび酢酸ビニル、プロピオ
ン酸ビニルなどのビニルエステル等があり、通常
0.1〜５重量部を使用する。
このようにして得られたEVA−塩化ビニルグ
ラフト共重合体にはさらに通常の塩化ビニル系ポ
リマーと同じように、安定剤、加工助剤、可塑剤
などの改質剤を添加してもよい。
該グラフト共重合体はついで特定量の石油樹脂
と混合される。
本発明にて用いる石油樹脂は石油類の熱分解等
により得られる分解油留分のうち140〜220℃の範
囲内の沸点留分をフリーデル・クラフツ型触媒の
存在下で重合して得られるもので、その中から少
なくとも一種類が用いられる。
該石油樹脂の混合量は該EVA−塩化ビニルグ
ラフト共重合体の70〜95重量部に対して５〜30重
量部の範囲で使用される。
石油樹脂の混合量が５重量部以下の場合には引
裂き強さの改良効果はほとんど見られず、また30
重量部をこえると、該グラフト共重合体の本来の
性質が損なわれると共に加工もむずかしくなる。
EVA−塩化ビニルグラフト共重合体と石油樹脂
の混合には、ヘンシエルミキサー等でドライブレ
ンドする方法、一軸または二軸押出機で溶融混練
する方法、ロール、バンバリーミキサー等で混合
する方法が用いられる。混合温度は、上記の樹脂
混合物を均一に混ぜ合わせ、かつ分解等を起させ
ない範囲であればよく、200℃をこえないことが
望ましい。
混合時間は、上記の樹脂混合物を均一に混ぜ合
わせる様に設定する。
こうして得られた混合物は、引続き、あるいは
ペレツト化してから、カレンダー加工、押出加工
等により薄膜状に成形される。
本発明によつて成形されたシートは、石油樹脂
を含まない場合に比べて、引裂き強さが大巾に改
良され、今後、広い用途に利用できるものであ
る。以下、本発明について実施例で具体的に説明
するが本発明はそれによつて制限されるものでは
ない。
参考例 １
撹拌装置を備えたステンレス製反応容器に
EVA（酢酸ビニル含量26％、メルトインデツクス
4.0）2.92Kg、塩化ビニル単量体7.83Kg、部分ケン
化ポリ酢酸ビニル14.94ｇ、水20.9Kg及びターシ
ヤリーブチルパーオキシピバレート1.722ｇ（総
量）のアルコール溶液を添加し、60℃で６時間懸
濁グラフト重合を行い生成物を過、水洗、乾燥
したところEVA31.7％を含むEVA−塩化ビニル
グラフト共重合体8.5Kgが得られた。
実施例１〜４，比較例１
６インチロールを用いて150℃にて５分間石油
樹脂の種類を変えてEVA−塩化ビニルグラフト
共重合体と混練した。EVA−塩化ビニルグラフ
ト共重合体としては参考例１で製造したものを使
用した。
石油樹脂としては石油類の熱分解により得られ
る分解油留分のうちの140〜220℃の沸点留分範囲
から選らばれる留分をフリーデル・クラフツ型触
媒の存在下で重合して得た石油樹脂、「ペトコー
ル140」（軟化点130〜140℃）（東洋曹達製）、「ペ
トコールLX」（軟化点92〜103℃）（東洋曹達製）
を用いた。
EVA−塩化ビニルグラフト共重合体の安定剤
として樹脂100重量部に対してジブチル錫マレー
ト系安定剤２重量部及びジブチル錫ジラウレート
系安定剤２重量部を用いた。
混練した樹脂組成物を165℃、７分、100Kg／cm2
でプレスして１mm厚みのシートとしJIS Ｋ−6772
に従つて引裂き強さを測定した。
結果を第１表に示すが配合割合の数値はすべて
重量部である。
The present invention relates to a composition with improved tear strength of a vinyl chloride-based graft copolymer. For more details, refer to ethylene-vinyl acetate copolymer (hereinafter referred to as
Abbreviated as EVA. ), a vinyl chloride-based graft copolymer (hereinafter abbreviated as EVA-vinyl chloride graft copolymer) produced by polymerizing a vinyl chloride monomer or a monomer mixture mainly composed of a vinyl chloride monomer, and a petroleum resin. The present invention relates to a composition in which the tear strength of the vinyl chloride-based graft copolymer is improved. EVA-vinyl chloride graft copolymer is a special vinyl chloride polymer used for various purposes. For example, if the EVA content in the EVA-vinyl chloride graft copolymer is 15% by weight or less,
For rigid fields, as extrusion molded products such as sheets and pipes, and injection molded products, and with an EVA content of 40
Those containing more than about 1% by weight have been used as extrusion molded products such as sheets and hoses for soft fields that do not contain plasticizers. However, the tear strength of EVA-vinyl chloride graft copolymers with an EVA content in the range of 15 to 40% by weight is strangely extremely low, making them unsuitable for use as thin film-like products such as sheets and films. I can't stand it,
Its use remained in limited fields. Such low tear strength was not observed in EVA-vinyl chloride graft copolymers with an EVA content of 15% by weight or less or 40% by weight or more, and it was desired to find out the cause and take countermeasures. be. The present inventors conducted a preliminary study on a method for improving the tear strength of EVA-vinyl chloride graft copolymers containing EVA in a specific range, and found that a specific amount of petroleum resin was added to the graft copolymer. It has been found that the tear strength can be greatly improved by mixing these. To describe the present invention in more detail, vinyl acetate 10
Obtained by graft polymerizing vinyl chloride or 60-85% by weight of a monomer mixture mainly composed of vinyl chloride to 15-40% by weight of EVA containing ~50% by weight.
To provide a composition in which the tear strength of the EVA-vinyl chloride graft copolymer is improved by mixing 70 to 95 parts by weight with 5 to 30 parts by weight of at least one petroleum resin. . Mixing petroleum resins with vinyl chloride polymers has not been practiced often, and it has not been known until now that the tear strength of vinyl chloride polymers can be improved by mixing petroleum resins. In addition, certain EVA-vinyl chloride graft copolymers,
It is also not known that the tear strength can be significantly improved by mixing a specific amount of petroleum resin, and this phenomenon was discovered for the first time by the present inventors. The EVA-vinyl chloride graft copolymer used in the present invention is produced by graft copolymerizing vinyl chloride or 60 to 85 parts by weight of a monomer mixture mainly composed of vinyl chloride in the presence of 15 to 40 parts by weight of EVA. can get. Graft copolymerization is carried out by suspension polymerization, emulsion polymerization, bulk polymerization, or solution polymerization.
Most preferred. EVA obtained by a radical polymerization method such as a high-pressure method or a solution method is used, and one produced by a high-pressure method is preferable. EVA has a vinyl acetate content of 10 to 50% by weight and a melt index of 0.1 to 500 g/10 min. Monomers that can be graft copolymerized by mixing with the vinyl chloride monomer mentioned above include acrylic acid derivatives and methacrylic acid derivatives such as ethyl acrylate, methyl acrylate, octyl acrylate, and methyl methacrylate, olefins such as ethylene and propylene, fumaric acid, and maleic acid. There are acid esters, vinyl ethers, and vinyl esters such as vinyl acetate and vinyl propionate.
Use 0.1 to 5 parts by weight. Modifiers such as stabilizers, processing aids, and plasticizers may be added to the EVA-vinyl chloride graft copolymer thus obtained, as in the case of ordinary vinyl chloride polymers. The graft copolymer is then mixed with a specified amount of petroleum resin. The petroleum resin used in the present invention is obtained by polymerizing a boiling point fraction within the range of 140 to 220°C among cracked oil fractions obtained by thermal decomposition of petroleum in the presence of a Friedel-Crafts type catalyst. At least one of these is used. The mixing amount of the petroleum resin is 5 to 30 parts by weight based on 70 to 95 parts by weight of the EVA-vinyl chloride graft copolymer. When the amount of petroleum resin mixed is less than 5 parts by weight, there is almost no improvement effect on tear strength, and when the amount of petroleum resin mixed is less than 5 parts by weight,
If the amount exceeds parts by weight, the original properties of the graft copolymer will be impaired and processing will become difficult.
The EVA-vinyl chloride graft copolymer and petroleum resin are mixed by dry blending using a Henschel mixer, melt kneading using a single-screw or twin-screw extruder, or mixing using a roll, Banbury mixer, etc. . The mixing temperature may be within a range that allows the resin mixture to be mixed uniformly and does not cause decomposition, and preferably does not exceed 200°C. The mixing time is set so that the above resin mixture is mixed uniformly. The mixture thus obtained is subsequently or pelletized and then formed into a thin film by calendering, extrusion, or the like. The sheet formed according to the present invention has greatly improved tear strength compared to a sheet that does not contain petroleum resin, and can be used for a wide range of purposes in the future. EXAMPLES The present invention will be specifically explained below with reference to Examples, but the present invention is not limited thereto. Reference example 1 In a stainless steel reaction vessel equipped with a stirring device
EVA (vinyl acetate content 26%, melt index
4.0) Add an alcoholic solution of 2.92Kg, vinyl chloride monomer 7.83Kg, partially saponified polyvinyl acetate 14.94g, water 20.9Kg and tert-butyl peroxypivalate 1.722g (total amount) and heat at 60℃ for 6 hours. Suspension graft polymerization was carried out, and the product was filtered, washed with water, and dried to obtain 8.5 kg of EVA-vinyl chloride graft copolymer containing 31.7% EVA. Examples 1 to 4, Comparative Example 1 Different petroleum resins were kneaded with EVA-vinyl chloride graft copolymer at 150° C. for 5 minutes using a 6-inch roll. The EVA-vinyl chloride graft copolymer produced in Reference Example 1 was used. Petroleum resins include petroleum resins obtained by polymerizing fractions selected from the boiling point range of 140 to 220°C among cracked oil fractions obtained by thermal decomposition of petroleum in the presence of a Friedel-Crafts type catalyst. Resin, "Petcol 140" (softening point 130-140℃) (manufactured by Toyo Soda), "Petcol LX" (softening point 92-103℃) (manufactured by Toyo Soda)
was used. As stabilizers for the EVA-vinyl chloride graft copolymer, 2 parts by weight of a dibutyltin malate stabilizer and 2 parts by weight of a dibutyltin dilaurate stabilizer were used per 100 parts by weight of the resin. The kneaded resin composition was heated at 165℃ for 7 minutes at 100Kg/cm 2
Press to make a 1mm thick sheet JIS K-6772
The tear strength was measured according to the following. The results are shown in Table 1, and all blending ratio values are in parts by weight.
【表】
＊２ ジブチル錫ジラウレート系
第１表からEVA−塩化ビニルグラフト共重合
体の引裂き強さは石油樹脂の混合により大巾に改
良されることがわかる。
実施例 ５
参考例１に準じて製造したEVA20％を含む
EVA−塩化ビニルグラフト共重合体90重量部、
ペトコール140 10重量部、ジブチル錫マレート系
1.8重量部、ジブチル錫ジラウレート系1.8重量部
を150℃の熱ロールで５分間混練して均一な樹脂
組成物を得た。この樹脂組成物をプレス条件とし
て165℃、７分、100Kg／cm2で１mm厚みのシートと
し、引裂き強さを測定した。この樹脂組成物の引
裂き強さは3.60Kg／cm2であつた。なおEVA20％
を含むEVA−塩化ビニルグラフト共重合体の引
裂き強さは2.10Kg／cm2であつた。[Table] *2 Dibutyltin dilaurate system From Table 1, it can be seen that the tear strength of the EVA-vinyl chloride graft copolymer is greatly improved by mixing petroleum resin. Example 5 Contains 20% EVA manufactured according to Reference Example 1
90 parts by weight of EVA-vinyl chloride graft copolymer,
Petcol 140 10 parts by weight, dibutyltin malate type
1.8 parts by weight of dibutyltin dilaurate and 1.8 parts by weight of dibutyltin dilaurate were kneaded for 5 minutes using heated rolls at 150°C to obtain a uniform resin composition. This resin composition was press-pressed at 165° C. for 7 minutes and 100 kg/cm 2 to form a sheet with a thickness of 1 mm, and its tear strength was measured. The tear strength of this resin composition was 3.60 Kg/cm 2 . In addition, EVA20%
The tear strength of the EVA-vinyl chloride graft copolymer containing the following was 2.10 Kg/cm 2 .
Claims (1)
の存在下に塩化ビニルモノマーもしくは塩化ビニ
ルモノマーを主体とするモノマー混合物60〜85重
量部を重合させることにより得られる塩化ビニル
系グラフト共重合体70〜95重量部と、石油樹脂５
〜30重量部から成ることを特徴とするフイルムま
たはシート用塩化ビニル系グラフト共重合体組成
物。 ２ エチレン−酢酸ビニル共重合体の酢酸ビニル
含有量が10〜50重量％で、メルトインデツクスが
0.1〜500ｇ／10分の範囲にある特許請求の範囲第
１項記載の組成物。 ３ 石油樹脂が石油類の熱分解等により得られる
分解油留分のうち140〜220℃の範囲内の沸点留分
をフリーデル・クラフツ型触媒の存在下の重合し
て得られるものである特許請求の範囲第１または
第２項記載の組成物。[Scope of Claims] 1. Vinyl chloride obtained by polymerizing 60 to 85 parts by weight of a vinyl chloride monomer or a monomer mixture mainly composed of vinyl chloride monomers in the presence of 15 to 40 parts by weight of an ethylene-vinyl acetate copolymer. 70 to 95 parts by weight of graft copolymer and 5 parts by weight of petroleum resin
1. A vinyl chloride-based graft copolymer composition for a film or sheet, characterized in that the composition comprises ~30 parts by weight. 2 The vinyl acetate content of the ethylene-vinyl acetate copolymer is 10 to 50% by weight, and the melt index is
A composition according to claim 1 in a range of 0.1 to 500 g/10 minutes. 3. A patent in which the petroleum resin is obtained by polymerizing in the presence of a Friedel-Crafts type catalyst a boiling point fraction within the range of 140 to 220°C among cracked oil fractions obtained by thermal decomposition of petroleum. A composition according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5163983A JPS59179553A (en) | 1983-03-29 | 1983-03-29 | Vinyl chloride graft copolymer composition for films and sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5163983A JPS59179553A (en) | 1983-03-29 | 1983-03-29 | Vinyl chloride graft copolymer composition for films and sheets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59179553A JPS59179553A (en) | 1984-10-12 |
| JPH0326221B2 true JPH0326221B2 (en) | 1991-04-10 |
Family
ID=12892411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5163983A Granted JPS59179553A (en) | 1983-03-29 | 1983-03-29 | Vinyl chloride graft copolymer composition for films and sheets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59179553A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014533937A (en) | 2011-10-18 | 2014-12-18 | インスティテュート フォー エンバイロメンタル ヘルス， インコーポレイテッド | Improved method and apparatus for sprout growth |
-
1983
- 1983-03-29 JP JP5163983A patent/JPS59179553A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59179553A (en) | 1984-10-12 |
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