JPS6365104B2 - - Google Patents
Info
- Publication number
- JPS6365104B2 JPS6365104B2 JP57054073A JP5407382A JPS6365104B2 JP S6365104 B2 JPS6365104 B2 JP S6365104B2 JP 57054073 A JP57054073 A JP 57054073A JP 5407382 A JP5407382 A JP 5407382A JP S6365104 B2 JPS6365104 B2 JP S6365104B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- vinyl chloride
- vinyl
- chloride resin
- 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
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 19
- 239000004014 plasticizer Substances 0.000 claims description 16
- 229920001577 copolymer Polymers 0.000 claims description 15
- 239000011342 resin composition Substances 0.000 claims description 14
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 11
- 239000005977 Ethylene Substances 0.000 claims description 11
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 11
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 239000004609 Impact Modifier Substances 0.000 claims description 7
- 229920002554 vinyl polymer Polymers 0.000 claims description 7
- -1 aromatic vinyl compound Chemical class 0.000 claims description 6
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 claims description 6
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 150000002148 esters Chemical group 0.000 claims description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims 4
- 239000000203 mixture Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 6
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- ADFPJHOAARPYLP-UHFFFAOYSA-N methyl 2-methylprop-2-enoate;styrene Chemical compound COC(=O)C(C)=C.C=CC1=CC=CC=C1 ADFPJHOAARPYLP-UHFFFAOYSA-N 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000156978 Erebia Species 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 1
- INLLPKCGLOXCIV-UHFFFAOYSA-N bromoethene Chemical compound BrC=C INLLPKCGLOXCIV-UHFFFAOYSA-N 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 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
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Description
本発明は、塩化ビニル系樹脂組成物に関する。
更に詳しくは、透明性および耐衝撃性にすぐれた
塩化ビニル系樹脂組成物に関する。
透明な半硬質塩化ビニル系樹脂組成物は、それ
の良好な真空成形性や保形性を生かして、食品や
薬品のブリスター包装、深絞り包装に単体フイル
ムまたは複合フイルムの形で用いられている。か
かる樹脂組成物には、殆んどの場合、メタクリル
酸エステル−スチレングラフトブタジエン重合体
の如き耐衝撃性改良剤とジオクチルフタレートの
如き液状の可塑剤とが配合されている。
このような樹脂組成物から成形されたシート
を、前述の如き包装用途に使用した場合、内容物
の包装作業中、包装品の輸送中あるいはその後の
店頭での取扱い工程中での屈曲、衝撃などによ
り、二次成形時の延伸で生じたシート厚みの薄い
部分にしばしばピンホールを生じ、これが原因と
なつてシートの実用バリヤー性が極度に低下する
事態に遭遇することが多い。このようなピンホー
ルの発生は、特に低温、例えば冷凍庫中におい
て、包装物を取扱つている場合にひん発する。
本発明者らは、かかるピンホールの発生原因に
ついて種々検討した結果、樹脂組成物中に存在す
る液状の可塑剤は、シートの透明性および真空成
形性の向上には貢献しているが、反面シートの耐
衝撃性、特に低温での耐衝撃性を著しく阻害して
いること、ならびにこの耐衝撃性の低下がピンホ
ール発生の原因となつていることをつきとめた。
また、シートの耐衝撃性は、JIS Ｋ−6740「硬
質塩化ビニルコンパウンド」に規定されているア
イゾツト衝撃強さの値と一次的な関係があり、ア
イゾツト衝撃強さ、特に低温でのアイゾツト衝撃
強さの大きいシートを用いた方がピンホールの発
生が少なく、実用面で有利であり、殊に５℃での
アイゾツト衝撃強さが50J／ｍ、好ましくは
100J／ｍ以上のシートを用いると、ピンホールの
発生を有効に阻止し得ることを確認した。
即ち、ピンホールの発生を防止するためには、
シートの耐衝撃性、特に低温での耐衝撃性を低下
せしめないような可塑剤を用いなければならない
ことが分つた。
かかる原因究明の結果、液状の可塑剤に代えて
あるいはそれと共に、エチレン・酢酸ビニル・一
酸化炭素共重合体を用いるときには、ピンホール
を発生させるような欠点がみられず、透明にして
耐衝撃性にもすぐれた樹脂組成物が得られること
が見出された。従つて、本発明は透明性および耐
衝撃性にすぐれた塩化ビニル系樹脂組成物に係
り、この樹脂組成物は、塩化ビニル系樹脂に該樹
脂と透明な配合物を形成し得る耐衝撃性改良剤お
よびエチレン・酢酸ビニル・一酸化炭素共重合体
を配合してなり、必要に応じて更にこれに芳香族
または脂肪族多価カルボン酸エステルの如き液状
の可塑剤を配合してなる。
塩化ビニル系樹脂としては、塩化ビニルの単独
重合体のみならず、他の共単量体、例えばエチレ
ン、プロピレンなどのα−オレフイン類、酢酸ビ
ニルなどのビニルエステル類、アクリル酸エステ
ルなどのα，β−不飽和カルボン酸エステル類、
アルキルビニルエーテルなどのビニルエーテル
類、臭化ビニル、フツ化ビニルなどの他のハロゲ
ン化ビニル類、スチレン、アクリロニトリル、塩
化ビニリデンなどのこれ以外のビニル化合物また
はビニリデン化合物などとの共重合体を挙げるこ
とができる。
これらの塩化ビニル系樹脂と透明な配合物を形
成し得る耐衝撃性改良剤としては、芳香族ビニル
化合物−メタクリル酸メチルグラフトブタジエン
系重合体（特公昭42−22541号公報および同44−
453号公報参照）や芳香族ビニル化合物−メタク
リル酸メチルグラフトアクリル系重合体（特開昭
51−82339号公報参照）が用いられ、これらはカ
ネエースＢシリーズ（鐘渕化学製品）メタブレン
Ｗシリーズ（三菱レーヨン製品）などとして既に
市販され、使用されている。
かかる耐衝撃性改良剤の作用を阻害することな
く、可塑剤として使用し得るエチレン・酢酸ビニ
ル・一酸化炭素共重合体は、重量でエチレンが約
40〜80％、好ましくは約60〜70％、酢酸ビニルが
約15〜60％、好ましくは約20〜35％、また一酸化
炭素が約５〜30％、好ましくは約５〜15％の割合
で共重合されている３元共重合体であり、必要に
応じて更に他の共重合体を共重合せしめたもので
あり、その製造法の詳細は例えば米国特許第
3780140号明細書に記載されている。
塩化ビニル系樹脂に、これらの耐衝撃性改良剤
およびエチレン・酢酸ビニル・一酸化炭素共重合
体を配合した樹脂組成物は、透明性、耐衝撃性お
よび真空成形性にすぐれているが、押出機での成
形加工性を更に改良するために、従来から一般に
使用されている液状可塑剤を少量添加することも
できる。一般に塩化ビニル系樹脂100重量部に対
し、耐衝撃性改良剤は約５〜20重量部、好ましく
は約10〜15重量部の割合で、またエチレン・酢酸
ビニル・一酸化炭素共重合体は約５〜30重量部、
好ましくは約10〜25重量部以上の割合で用いられ
るが、液状の可塑剤が配合される場合には、それ
がエチレン・酢酸ビニル・一酸化炭素共重合体に
対し、重量比で１またはそれ以下の割合、好まし
くは約1/3以下の割合で用いられる。それより多
い割合で用いると、耐衝撃強度の低下の度合が大
きくなるからである。
液状の可塑剤としては、塩化ビニル系樹脂の可
塑剤として通常使用されている液状可塑剤であれ
ば特に制限はなく、例えばジオクチルフタレート
（DOP）、トリオクチルトリメリテート、ジオク
チルアジペートなどの芳香族または脂肪族多価カ
ルボン酸のエステルあるいはグリコールと芳香族
または脂肪族２価カルボン酸とからなる高分子量
ポリエステル可塑剤などが用いられる。
本発明に係る塩化ビニル系樹脂組成物は、通常
の塩化ビニル系樹脂のフイルム乃至シートの成形
方法であるカレンダー成形法によつても、あるい
は押出成形法によつても、容易にフイルム乃至シ
ートへの加工が可能である。成形されたフイルム
乃至シートは、透明性および耐衝撃性にすぐれて
おり、またエチレン・酢酸ビニル・一酸化炭素共
重合体および液状の可塑剤の添加割合を調節する
ことによつて、所望の真空成形性および保形性を
有しているので、食品の真空包装材料あるいは薬
品などのブリスター包装材料として適切に使用す
ることができる。
次に、実施例について本発明を説明する。
実施例 １
下記の配合組成の混合物を調製した。
ポリ塩化ビニル（平均重合度800） 100重量部
エチレン・酢酸ビニル・一酸化炭素共重合体（組
成比67／23／10重量％） 25
メタクリル酸メチル−スチレングラフトブタジエ
ン系重合体〔鐘渕化学製品 カネエース Ｂ−
22〕 10
ジオクチル錫メルカプト〔日産フエロ有機化学製
品 NF310〕 ２
ジブチル錫ジラウレート〔アデカアーガス製品
MARKBT−11〕 0.5
モンタン酸ワツクス〔ヘキストケミカル製品
OPwax〕 0.2
この混合物を、２本ロールにより170℃で10分
間混練した後、180℃で４分間プレスして成形し、
透明性のよいプレスシートを得た。
比較例 １
実施例１において、エチレン・酢酸ビニル・一
酸化炭素共重合体25重量部の代りにDOP15重量
部を用い、プレスシートに成形した。用いられた
DOP量は、前記一酸化炭素共重合体３重量部と
DOP2重量部との相対的な割合が同一柔軟性のシ
ートを与えるという経験則により決められたもの
であり、以下の各実施例と比較例においても然り
である。
実施例１および比較例１で得られたプレスシー
トの物性値を測定すると、次の第１表に示される
ような結果が得られた。
The present invention relates to a vinyl chloride resin composition.
More specifically, the present invention relates to a vinyl chloride resin composition with excellent transparency and impact resistance. Transparent semi-rigid vinyl chloride resin compositions are used in the form of single films or composite films for blister packaging and deep-draw packaging of foods and drugs due to their good vacuum formability and shape retention properties. . In most cases, such resin compositions contain an impact modifier such as a methacrylic acid ester-styrene grafted butadiene polymer and a liquid plasticizer such as dioctyl phthalate. When a sheet molded from such a resin composition is used for packaging purposes as described above, it may be subject to bending, impact, etc. during the packaging of the contents, during transportation of the packaged product, or during the subsequent handling process at the store. As a result, pinholes often occur in thinner parts of the sheet caused by stretching during secondary forming, and this often causes a situation in which the practical barrier properties of the sheet are extremely reduced. The occurrence of such pinholes is especially likely to occur when the package is being handled at low temperatures, for example in a freezer. As a result of various studies on the causes of such pinholes, the present inventors found that the liquid plasticizer present in the resin composition contributes to improving the transparency and vacuum formability of the sheet, but on the other hand, It was discovered that the impact resistance of the sheet, especially at low temperatures, was significantly impaired, and that this decrease in impact resistance was the cause of pinholes. In addition, the impact resistance of the sheet has a primary relationship with the value of izot impact strength specified in JIS K-6740 "Hard vinyl chloride compounds". It is practical to use a sheet with a larger diameter because it causes fewer pinholes, and in particular, the Izot impact strength at 5°C is 50 J/m, preferably
It was confirmed that the use of a sheet of 100 J/m or more can effectively prevent the formation of pinholes. In other words, in order to prevent the occurrence of pinholes,
It has been found that plasticizers must be used that do not reduce the impact resistance of the sheet, especially at low temperatures. As a result of investigating the cause, we found that when ethylene/vinyl acetate/carbon monoxide copolymer is used in place of or in conjunction with liquid plasticizer, there are no defects such as pinhole formation, and it is transparent and impact resistant. It has been found that a resin composition with excellent properties can be obtained. Therefore, the present invention relates to a vinyl chloride resin composition with excellent transparency and impact resistance, and this resin composition has impact resistance improved by forming a transparent blend with the vinyl chloride resin. A liquid plasticizer such as an aromatic or aliphatic polycarboxylic acid ester is further added thereto as required. Vinyl chloride resins include not only vinyl chloride homopolymers, but also other comonomers, such as α-olefins such as ethylene and propylene, vinyl esters such as vinyl acetate, and α-olefins such as acrylic esters. β-unsaturated carboxylic acid esters,
Examples include vinyl ethers such as alkyl vinyl ethers, other vinyl halides such as vinyl bromide and vinyl fluoride, and copolymers with other vinyl compounds or vinylidene compounds such as styrene, acrylonitrile, and vinylidene chloride. . Impact modifiers that can form transparent compounds with these vinyl chloride resins include aromatic vinyl compound-methyl methacrylate-grafted butadiene polymers (Japanese Patent Publications No. 42-22541 and No. 44-
453) and aromatic vinyl compound-methyl methacrylate grafted acrylic polymer (Japanese Patent Application Laid-open No. 453)
51-82339), and these are already commercially available and in use as the Kane Ace B series (Kanebuchi Chemical products), the Metablen W series (Mitsubishi Rayon products), etc. Ethylene-vinyl acetate-carbon monoxide copolymer, which can be used as a plasticizer without inhibiting the action of such impact modifiers, has an ethylene content of approximately
40-80%, preferably about 60-70%, vinyl acetate about 15-60%, preferably about 20-35%, and carbon monoxide about 5-30%, preferably about 5-15%. It is a ternary copolymer copolymerized with other copolymers, and if necessary, other copolymers are copolymerized.Details of its manufacturing method can be found, for example, in U.S. Patent No.
It is described in the specification of No. 3780140. Resin compositions made by blending these impact modifiers and ethylene/vinyl acetate/carbon monoxide copolymers with vinyl chloride resins have excellent transparency, impact resistance, and vacuum formability, but they are difficult to extrude. In order to further improve molding processability in a machine, a small amount of a conventionally commonly used liquid plasticizer can also be added. In general, the impact modifier is used in an amount of about 5 to 20 parts by weight, preferably about 10 to 15 parts by weight, and the ethylene-vinyl acetate-carbon monoxide copolymer is used in an amount of about 5 to 20 parts by weight per 100 parts by weight of vinyl chloride resin. 5 to 30 parts by weight,
It is preferably used in a proportion of about 10 to 25 parts by weight or more, but when a liquid plasticizer is blended, it is used in a weight ratio of 1 or less to the ethylene/vinyl acetate/carbon monoxide copolymer. It is used in the following proportions, preferably about 1/3 or less. This is because if it is used in a larger proportion, the degree of decrease in impact strength will be greater. There are no particular limitations on the liquid plasticizer as long as it is a liquid plasticizer that is commonly used as a plasticizer for vinyl chloride resins, such as aromatic plasticizers such as dioctyl phthalate (DOP), trioctyl trimellitate, and dioctyl adipate. Alternatively, a high molecular weight polyester plasticizer made of an ester or glycol of an aliphatic polycarboxylic acid and an aromatic or aliphatic dicarboxylic acid may be used. The vinyl chloride resin composition according to the present invention can be easily formed into a film or sheet by a calendar molding method, which is a conventional method for molding a vinyl chloride resin film or sheet, or by an extrusion molding method. processing is possible. The formed film or sheet has excellent transparency and impact resistance, and by adjusting the addition ratio of ethylene/vinyl acetate/carbon monoxide copolymer and liquid plasticizer, it can be made into a desired vacuum. Since it has moldability and shape retention properties, it can be appropriately used as a vacuum packaging material for foods or a blister packaging material for medicines. Next, the present invention will be explained with reference to examples. Example 1 A mixture having the following composition was prepared. Polyvinyl chloride (average degree of polymerization 800) 100 parts by weight Ethylene/vinyl acetate/carbon monoxide copolymer (composition ratio 67/23/10% by weight) 25 Methyl methacrylate-styrene grafted butadiene polymer [Kanebuchi Chemical Products] Kane Ace B-
22] 10 Dioctyltin mercapto [Nissan Ferro Organic Chemical Products NF310] 2 Dibutyltin dilaurate [Adeka Argus products
MARKBT−11〕 0.5 Montanic acid wax〔Hoechst Chemical product
OPwax] 0.2 This mixture was kneaded with two rolls at 170℃ for 10 minutes, then pressed at 180℃ for 4 minutes to form it.
A press sheet with good transparency was obtained. Comparative Example 1 In Example 1, 15 parts by weight of DOP was used instead of 25 parts by weight of the ethylene/vinyl acetate/carbon monoxide copolymer, and a press sheet was formed. used
The amount of DOP is 3 parts by weight of the carbon monoxide copolymer and
This was determined based on the empirical rule that the relative proportion to 2 parts by weight of DOP gives sheets of the same flexibility, and the same holds true for each of the following Examples and Comparative Examples. When the physical properties of the press sheets obtained in Example 1 and Comparative Example 1 were measured, the results shown in Table 1 below were obtained.
【表】
実施例２〜７、比較例２〜４
実施例１および比較例１で用いられた配合原料
を用い、下記第２表に示される配合組成の混合物
から、同様にプレスシートを成形した。[Table] Examples 2 to 7, Comparative Examples 2 to 4 Using the raw materials used in Example 1 and Comparative Example 1, press sheets were similarly molded from mixtures with the composition shown in Table 2 below. .
【表】
得られたプレスシートの物性値の測定結果は、
次の第３表に示される。[Table] The measurement results of the physical properties of the obtained press sheet are as follows:
It is shown in Table 3 below.
【表】
実施例８〜９、比較例５
メタクリル酸メチル−スチレングラフトブタジ
エン系重合体の代りに、メタクリル酸メチル−ス
チレングラフトアクリル系重合体（三菱レーヨン
製品メタブレンＷ−300）が用いられた以外は、
実施例１および比較例１で用いられた配合原料を
用い、下記第４表に示される配合組成の混合物か
ら、同様のプレスシートを成形した。[Table] Examples 8 to 9, Comparative Example 5 Except that a methyl methacrylate-styrene grafted acrylic polymer (Mitsubishi Rayon product Metablane W-300) was used instead of the methyl methacrylate-styrene grafted butadiene polymer. teeth,
Using the raw materials used in Example 1 and Comparative Example 1, similar press sheets were molded from mixtures having the composition shown in Table 4 below.
【表】
得られたプレスシートの測定結果は、次の第５
表に示される。[Table] The measurement results of the obtained press sheet are shown in the following 5th table.
Shown in the table.
Claims (1)
明な配合物を形成し得る芳香族ビニル化合物−メ
タクリル酸メチルグラフトブタジエン系またはア
クリル系重合体耐衝撃性改良剤５〜20重量部およ
びエチレン・酢酸ビニル・一酸化炭素共重合体５
〜30重量部を配合してなる透明性および耐衝撃性
にすぐれた半硬質塩化ビニル系樹脂組成物。 ２ 塩化ビニル系樹脂100重量部に、該樹脂と透
明な配合物を形成し得る芳香族ビニル化合物−メ
タクリル酸メチルグラフトブタジエン系またはア
クリル系重合体耐衝撃性改良剤５〜20重量部、エ
チレン・酢酸ビニル・一酸化炭素共重合体５〜30
重量部および該エチレン・酢酸ビニル・一酸化炭
素共重合体に対し重量比で１またはそれ以下の液
状可塑剤を配合してなる半硬質塩化ビニル系樹脂
組成物。 ３ 液状可塑剤が芳香族または脂肪族多価カルボ
ン酸のエステルである特許請求の範囲第２項記載
の半硬質塩化ビニル系樹脂組成物。[Scope of Claims] 1. 100 parts by weight of a vinyl chloride resin, an aromatic vinyl compound-methyl methacrylate grafted butadiene or acrylic polymer impact modifier that can form a transparent compound with the resin 5- 20 parts by weight and ethylene/vinyl acetate/carbon monoxide copolymer 5
A semi-rigid vinyl chloride resin composition with excellent transparency and impact resistance, containing ~30 parts by weight. 2 To 100 parts by weight of vinyl chloride resin, 5 to 20 parts by weight of an aromatic vinyl compound capable of forming a transparent compound with the resin - methyl methacrylate grafted butadiene or acrylic polymer impact modifier, ethylene. Vinyl acetate/carbon monoxide copolymer 5-30
A semi-rigid vinyl chloride resin composition comprising a liquid plasticizer in a weight ratio of 1 or less to parts by weight and the ethylene/vinyl acetate/carbon monoxide copolymer. 3. The semi-rigid vinyl chloride resin composition according to claim 2, wherein the liquid plasticizer is an ester of aromatic or aliphatic polycarboxylic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5407382A JPS58168646A (en) | 1982-03-31 | 1982-03-31 | Vinyl chloride resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5407382A JPS58168646A (en) | 1982-03-31 | 1982-03-31 | Vinyl chloride resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58168646A JPS58168646A (en) | 1983-10-05 |
| JPS6365104B2 true JPS6365104B2 (en) | 1988-12-14 |
Family
ID=12960440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5407382A Granted JPS58168646A (en) | 1982-03-31 | 1982-03-31 | Vinyl chloride resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58168646A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105045A (en) * | 1982-12-09 | 1984-06-18 | Kyowa Leather Kk | Production of highly non-staining non-rigid sheet |
| JPS60195147A (en) * | 1984-03-19 | 1985-10-03 | Nippon Carbide Ind Co Ltd | Composition for semirigid vinyl chloride resin moldings |
| JP2505409B2 (en) * | 1985-12-23 | 1996-06-12 | 電気化学工業株式会社 | Stretch film |
| US5585194A (en) * | 1995-01-19 | 1996-12-17 | Empire Plastics, Inc. | Extended flex life core and overlay composition and laminates thereof |
| CN109777001A (en) * | 2019-01-08 | 2019-05-21 | 宁波蓝柏医疗器械有限公司 | A kind of high tenacity medical PVC material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641240A (en) * | 1979-09-10 | 1981-04-17 | Sekisui Chem Co Ltd | Resin composition for medical instrument construction |
| JPS57147538A (en) * | 1981-01-30 | 1982-09-11 | Stauffer Chemical Co | Film-forming polymer blend |
-
1982
- 1982-03-31 JP JP5407382A patent/JPS58168646A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641240A (en) * | 1979-09-10 | 1981-04-17 | Sekisui Chem Co Ltd | Resin composition for medical instrument construction |
| JPS57147538A (en) * | 1981-01-30 | 1982-09-11 | Stauffer Chemical Co | Film-forming polymer blend |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58168646A (en) | 1983-10-05 |
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