JPS61225225A - Expandable vinyl chloride resin composition - Google Patents
Expandable vinyl chloride resin compositionInfo
- Publication number
- JPS61225225A JPS61225225A JP6739185A JP6739185A JPS61225225A JP S61225225 A JPS61225225 A JP S61225225A JP 6739185 A JP6739185 A JP 6739185A JP 6739185 A JP6739185 A JP 6739185A JP S61225225 A JPS61225225 A JP S61225225A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- resin composition
- chloride resin
- vinyl
- ethylene
- 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.)
- Pending
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、塩化ビニル系樹脂発泡体を得るための発泡
性樹脂組成物に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a foamable resin composition for obtaining a vinyl chloride resin foam.
高発泡倍率の塩化ビニル系樹脂発泡体は、圧縮永久歪、
繰り返し圧縮歪等の圧縮特性が悪いこと、またその製造
に特殊な装置を必要とし、更に特殊な原料を使用しなけ
ればならない等の欠点を有する為に用途が限定され、ポ
リウレタンフォームやポリエチレンフオームに比べ余り
使われていない。PVC resin foam with high expansion ratio has compression set,
Its use is limited due to its poor compression properties such as repeated compression strain, the need for special equipment to manufacture it, and the need to use special raw materials. It is comparatively not used much.
ところで、高発泡軟質の塩化ビニル樹脂発泡体の製造方
法として知られているエラストマー法（特公昭３２−４
７４２号公報）及びテニス法は、塩化ビニル樹脂として
はペースト用塩化ビニル樹脂に限られ、また、高圧下で
不活性ガスを圧入するために高圧設備が必要となる。By the way, the elastomer method (Japanese Patent Publication No. 32-4
742) and the tennis method, the vinyl chloride resin used is limited to vinyl chloride resin for paste, and high-pressure equipment is required to inject inert gas under high pressure.
また、他の方法として知られるエアレックス法（特公昭
３０−６１３４号公報）は、高圧設備を必要とするバッ
チ生産方式であるため、生産性が低く、長尺物はできな
い欠点がある。更に、アセトン、テトラヒドロフラン等
の溶剤を使用するので衛生上も好ましくない上、得られ
た発泡体の気泡が粗い。In addition, the airex method (Japanese Patent Publication No. 30-6134), which is known as another method, is a batch production method that requires high-pressure equipment, so it has low productivity and has the drawback that it cannot produce long products. Furthermore, since solvents such as acetone and tetrahydrofuran are used, it is not sanitary and the resulting foam has coarse cells.
更に、化学発泡剤を使用する常圧発泡法が、特公昭４２
−１８８２８号公報に提示されているが、得られる発泡
体は気泡が不均一で外観及び物性が十分なものでなかっ
た。Furthermore, the normal pressure foaming method using a chemical foaming agent was introduced in 1973.
However, the resulting foam had non-uniform cells and did not have sufficient appearance and physical properties.
上記の方法は、いずれも無架橋発泡法である為、この発
泡体の使用可能温度は高々８０℃であり、特に密度０．
１ｇ／−以下の高発泡のものは圧縮特性が良くないとい
う問題点があった。Since the above methods are all non-crosslinking foaming methods, the usable temperature of this foam is at most 80°C, and especially the density is 0.
Highly foamed foams of 1 g/- or less have poor compression properties.
一方、架橋させて高発泡倍率のものを得る方法として特
公昭４８−４８６３号公報においては、塩化ビニル−エ
チレン共重合体を放射線の照射により架橋させた後、こ
れを加熱して発泡剤を分解させて発泡させる方法が提案
されている。On the other hand, as a method for obtaining a product with a high foaming ratio by crosslinking, Japanese Patent Publication No. 48-4863 discloses a method in which a vinyl chloride-ethylene copolymer is crosslinked by irradiation with radiation, and then heated to decompose the foaming agent. A method of foaming by foaming has been proposed.
また、架橋発泡法として、分子内に水酸基又はカルボキ
シル基を有する塩化ビニル系乳化重合体、水酸基又はカ
ルボキシル基と反応する官能基を１分子中に少なくとも
２個有する架橋剤及び発泡剤を有する組成物を、この組
成物の溶融温度より低く、かつ発泡剤の分解しない温度
で混練成形し架橋させ、ゲル分１０〜６０％の成形物と
し、次いで再加熱して発泡させる方法が提案されている
（特公昭５３−５０６８号公報）。In addition, as a crosslinking foaming method, a composition containing a vinyl chloride emulsion polymer having a hydroxyl group or a carboxyl group in the molecule, a crosslinking agent having at least two functional groups in one molecule that reacts with a hydroxyl group or a carboxyl group, and a blowing agent. A method has been proposed in which the composition is kneaded and molded at a temperature lower than the melting temperature of the composition and at a temperature at which the blowing agent does not decompose, crosslinked to form a molded product with a gel content of 10 to 60%, and then reheated and foamed ( (Special Publication No. 53-5068).
前記した架橋発泡法における特公昭４８−４８６３号公
報に提案された方法では、高価な放射線照射設備を必要
とし経済的でなく、また、放射線の透過能力の関係上、
丸棒、チューブ状或いはシート状のものに限定され、そ
の厚み、大きさも制限されるといった問題点があった。The method proposed in Japanese Patent Publication No. 48-4863 regarding the above-mentioned crosslinking foaming method requires expensive radiation irradiation equipment and is not economical.
There were problems in that the shape was limited to round rods, tubes, or sheets, and the thickness and size were also limited.
また、特公昭５３−５０６８号公報に記載された方法で
は、分子内に水酸基又はカルボキシル基を有する塩化ビ
ニル系乳化重合体という特殊な塩化ビニル系樹脂を使用
するため経済的に不利である。また、発泡前のゲル分を
、特定の１０〜６０％の範囲に調節しなければならず、
架橋剤量、混線温度及び時間等を厳しく管理しなければ
ならない。そして、このようにして得られた発泡体は、
架橋されていても圧縮特性は未だ十分なものでなかった
。Furthermore, the method described in Japanese Patent Publication No. 53-5068 is economically disadvantageous because it uses a special vinyl chloride resin called a vinyl chloride emulsion polymer having a hydroxyl group or a carboxyl group in the molecule. In addition, the gel content before foaming must be adjusted to a specific range of 10 to 60%,
The amount of crosslinking agent, crosslinking temperature, time, etc. must be strictly controlled. The foam thus obtained is
Even though it was crosslinked, the compression properties were still insufficient.
この発明は、このような問題点を解消しようとするもの
で、特殊な塩化ビニル系樹脂を使用することなく、かつ
、得られた発泡体の圧縮特性が優れた塩化ビニル系樹脂
架橋発泡体を得るための発泡性組成物を提供しようとす
るものである。This invention aims to solve these problems by creating a cross-linked polyvinyl chloride resin foam that does not require the use of special vinyl chloride resin and the resulting foam has excellent compression properties. The purpose of the present invention is to provide a foamable composition for obtaining a foamable composition.
この発明は、塩化ビニル系発泡性樹脂組成物において、
塩化ビニル系樹脂５０〜８０重量部と、エチレン・酢酸
ビニル・一酸化炭素共重合体５０〜２０重量部と、加熱
によりアンモニアを含むガスを発生する発泡剤とを含む
ことを特徴とする。This invention provides a vinyl chloride foamable resin composition,
It is characterized by containing 50 to 80 parts by weight of a vinyl chloride resin, 50 to 20 parts by weight of an ethylene/vinyl acetate/carbon monoxide copolymer, and a blowing agent that generates a gas containing ammonia when heated.
この発明において、塩化ビニル系樹脂は、塩化ビニル単
独重合体、塩化ビニルとこの塩化ビニルと共重合し得る
モノマーとの共重合体であって、通常の懸濁重合法、乳
化重合法或いはその他の公知の重合法にて得られるもの
が使用される。In this invention, the vinyl chloride resin is a vinyl chloride homopolymer, a copolymer of vinyl chloride and a monomer copolymerizable with the vinyl chloride, and is produced by a conventional suspension polymerization method, emulsion polymerization method, or other method. Those obtained by known polymerization methods are used.
この塩化ビニルと共重合し得るモノマーとしては、たと
えば、酢酸ビニル、ステアリン酸ビニル等のビニルエス
テル、エチレン、プロピレン等のオレフィン、スチレン
あるいはその誘導体などが挙げられる。Examples of monomers that can be copolymerized with vinyl chloride include vinyl esters such as vinyl acetate and vinyl stearate, olefins such as ethylene and propylene, and styrene or derivatives thereof.
また、この発明において用いられるエチレン・酢酸ビニ
ル・一酸化炭素共重合体は、エチレンと酢酸ビニル及び
一酸化炭素の共重合体である。これらのエチレン、酢酸
ビニル及び一酸化炭素の含有量は得られる発泡体の使用
目的に応じて適宜選択されるが、一般に酢酸ビニルの含
有量は５〜４０重量％、一酸化炭素の含有量は１〜２％
であるのが好ましい。Further, the ethylene/vinyl acetate/carbon monoxide copolymer used in this invention is a copolymer of ethylene, vinyl acetate, and carbon monoxide. The contents of ethylene, vinyl acetate, and carbon monoxide are appropriately selected depending on the intended use of the obtained foam, but generally the content of vinyl acetate is 5 to 40% by weight, and the content of carbon monoxide is 5 to 40% by weight. 1-2%
It is preferable that
更に、この発明では、加熱によりアンモニアを含むガス
を発生する発泡剤を必要とする。この例としては、アゾ
ジカルボンアミド、アゾジカルボン酸バリウム、ヒドラ
ゾカルボンアミド等の有機発泡剤、また、炭酸アンモニ
ウム、重炭酸アンモニウム、酢酸アンモニウム等の無機
発泡剤が挙げられる。これらの発泡剤は単独または２種
以上の混合物、或いは、これらの発泡剤と、ガス中にア
ンモニアを含まないような発泡剤とを併用添加してもよ
い。Furthermore, the present invention requires a blowing agent that generates ammonia-containing gas when heated. Examples include organic blowing agents such as azodicarbonamide, barium azodicarboxylate, and hydrazocarbonamide, and inorganic blowing agents such as ammonium carbonate, ammonium bicarbonate, and ammonium acetate. These blowing agents may be added alone or in a mixture of two or more, or in combination with a blowing agent that does not contain ammonia in the gas.
上記発泡剤の添加量は、所望の発泡倍率に応じて変える
ことができるが、樹脂分１００重量部に対して５〜４０
重量部が好ましい。５重量部未満であると発生ガス量が
少なくて発泡倍率が上がらず、かつ、架橋も不十分とな
って物性が劣る。４０重量部を越えると発生ガス量が多
過ぎて発泡体に亀裂を生じたり、空洞ができ易いので不
都合となることが多い。The amount of the foaming agent added can be varied depending on the desired expansion ratio, but is 5 to 40 parts by weight per 100 parts by weight of the resin.
Parts by weight are preferred. If the amount is less than 5 parts by weight, the amount of gas generated will be small and the expansion ratio will not increase, and crosslinking will also be insufficient, resulting in poor physical properties. If the amount exceeds 40 parts by weight, the amount of gas generated is too large and the foam tends to crack or form cavities, which is often disadvantageous.
なお、必要に応じ、発泡助剤、老化防止剤、着色剤、帯
電防止剤、気泡防止剤、充填剤、可塑剤等従来発泡性樹
脂組成物に用いられる添加剤を併用しても差し支えない
。Note that, if necessary, additives conventionally used in foamable resin compositions such as foaming aids, anti-aging agents, colorants, antistatic agents, antifoam agents, fillers, and plasticizers may be used in combination.
（実施例１〜３及び比較例１〜５）
ポリ塩化ビニル（以下、ＰｖＣと略記することがある）
として、平均重合度８００のニポリッ１−３Ｒ（チッソ
社製）、エチレン・酢酸ビニル・一酸化炭素共重合体（
以下、Ｅ−ＶＡ−ＧＯと略記することがある）として、
エルバロイ７４２ （デュポン社製）、アンモニアを含
むガスを発生する発泡剤として、アゾジカルボンアミド
（以下、ＡＤＣＡと略記することがある。(Examples 1 to 3 and Comparative Examples 1 to 5) Polyvinyl chloride (hereinafter sometimes abbreviated as PvC)
Nipoli 1-3R (manufactured by Chisso Corporation) with an average degree of polymerization of 800, ethylene/vinyl acetate/carbon monoxide copolymer (
(hereinafter sometimes abbreviated as E-VA-GO),
Elvaloy 742 (manufactured by DuPont), azodicarbonamide (hereinafter sometimes abbreviated as ADCA) as a blowing agent that generates a gas containing ammonia.
分解開始温度１９５℃、総ガス発生量２００Ｃｃ ／
ｇ 、アンモニアガス発生量２０ ｃ ｃ／ｇ、大塚化
学薬品社；ユニフォームＡＺ−Ｌ） 、錫系安定剤（共
同薬品社、ＫＳ１０１０Ａ）を第１表に示す割合で配合
したこの発明の組成物と、比較のため、発泡剤としてア
ンモニアガスを発生しない重炭酸す） ＩＪウム（分解
開始温度１６０℃、総ガス発生量１００ｃｃ／ｇ、アン
モニアガス発生量Ｏ１***ベリンガー社；ハイドロセロ
ール）を使用した他は第１表に示すとおりこの発明と同
様にした組成物とを、１２０℃のミキシングロールで混
練したのち、プレスで１鶴厚さのシートに成形した。こ
のシートをそれぞれ２１０℃の熱風炉内で加熱発泡させ
た。Decomposition start temperature 195℃, total gas generation amount 200Cc/
g, ammonia gas generation amount 20 c c/g, Otsuka Chemical Co., Ltd.; Uniform AZ-L), and a tin-based stabilizer (Kyodo Yakuhin Co., Ltd., KS1010A) in the proportions shown in Table 1. For comparison, bicarbonate (bicarbonate) which does not generate ammonia gas was used as a blowing agent (decomposition start temperature 160°C, total gas generation amount 100 cc/g, ammonia gas generation amount O1, Behringer, West Germany; Hydrocellol). A composition similar to that of the present invention as shown in Table 1 was kneaded with a mixing roll at 120° C., and then molded into a sheet with a thickness of one inch using a press. Each of these sheets was heated and foamed in a hot air oven at 210°C.
得られた発泡体の密度、外観、気泡状態、難燃性（ＭＶ
Ｓ ３０２により判定、試料は１ｍ厚さにスライスした
ものを使用）及び沸騰テトラヒドロフラン不溶分として
のゲル分率は第２表に示すとおりであった。The density, appearance, cell condition, flame retardancy (MV
The gel fraction as the insoluble matter in boiling tetrahydrofuran was as shown in Table 2.
（以下余白）
第１表
第２表
（実施例４〜６、比較例６〜１０）
実施例１〜３、比較例１〜５と同じ塩化ビニル樹脂、エ
チレン・酢酸ビニル・一酸化炭素共重合体、発泡剤（ア
ゾジカルボンアミド、重炭酸ナトリウム）、錫系安定剤
の他に、可塑剤としてＤＯＰを用いた第３表に示す割合
で配合した発泡性樹脂組成物を１２０℃のミキシングロ
ールで混練し、これをプレスで２鶴厚のシートに成形し
た。(Margin below) Table 1 Table 2 (Examples 4-6, Comparative Examples 6-10) Same vinyl chloride resin as Examples 1-3 and Comparative Examples 1-5, ethylene/vinyl acetate/carbon monoxide copolymer A foamable resin composition containing DOP as a plasticizer in addition to a foaming agent (azodicarbonamide, sodium bicarbonate) and a tin-based stabilizer in the proportions shown in Table 3 was mixed with a mixing roll at 120°C. The mixture was kneaded and formed into a sheet with a thickness of 2 mm using a press.
次いで、このシートを約２１１ＩＩ角に裁断して発泡性
ペレットを得た。Next, this sheet was cut into approximately 211 mm squares to obtain expandable pellets.
この発泡性ペレッ）１００ｇをこれを閉鎖し得るが密閉
し得ない金型（内寸；幅２０ｃｍ、長さ３０ｃｍ、高さ
２ｃａ＋）に入れ、この金型を２１０℃の熱風炉中に入
れて発泡剤を分解させて発泡させた。100g of this foamable pellet was placed in a mold that could be closed but not sealed (inner dimensions: width 20cm, length 30cm, height 2ca+), and this mold was placed in a hot air oven at 210°C. The foaming agent was decomposed and foamed.
こうして得られた発泡体の外観、諸物性等は第４表に示
すとおりであった。The appearance, physical properties, etc. of the foam thus obtained were as shown in Table 4.
なお、試料及び測定方法は実施例１〜３におけると同様
に行った。Note that the samples and measurement methods were the same as in Examples 1 to 3.
第３表
第４表
注）難燃性；○−・−合格、×−不合格（実施例７〜９
、比較例１１〜１３）
エチレンを４ｗｔ％を含み平均重合度８００の塩化ビニ
ル・エチレン共重合体（徳山積木工業社、セキスイＰＶ
ｃ ＶＥ−Ｈ） 、実施例１〜３で用いたものと同じ
エチレン・酢酸ビニル・一酸化炭素共重合体、アゾジカ
ルボンアミド及び錫系安定剤に可塑剤（ＤＯＰ）を添加
し、更に比較例においては架橋助剤としてトリメチロー
ルプロパントリメタクリレート（以下ＴＭＰＴというこ
とがある）を加え、第５表に示す割合で配合した発泡性
樹脂組成物を１２０℃のミキシングロールで混練し、こ
れをプレスで２ｆｌ厚のシートに成形した。Table 3 Table 4 Note) Flame retardancy: ○--Pass, ×-Fail (Examples 7 to 9
, Comparative Examples 11 to 13) Vinyl chloride/ethylene copolymer containing 4 wt% ethylene and having an average degree of polymerization of 800 (Tokuyama Building Industry Co., Ltd., Sekisui PV)
c VE-H), a plasticizer (DOP) was added to the same ethylene/vinyl acetate/carbon monoxide copolymer, azodicarbonamide, and a tin-based stabilizer as used in Examples 1 to 3, and a comparative example In this method, a foamable resin composition containing trimethylolpropane trimethacrylate (hereinafter sometimes referred to as TMPT) as a crosslinking aid and blended in the proportions shown in Table 5 was kneaded with a mixing roll at 120°C, and this was mixed with a press. It was molded into a 2fl thick sheet.
このシートを実施例７〜９においてはそのまま２１０℃
の熱風炉内に入れ、これを加熱発泡させた。In Examples 7 to 9, this sheet was heated as it was at 210°C.
was placed in a hot air oven to heat and foam.
比較例１１〜１３においては前記シートに電子線３ Ｍ
ｒ ａ ｄを照射した後にこの実施例と同様にして加
熱発泡させた。In Comparative Examples 11 to 13, the sheet was exposed to an electron beam of 3 M
After irradiating with rad, heating and foaming was carried out in the same manner as in this example.
こうして得られた発泡体の外観、諸物性等は第６表に示
すとおりであった。The appearance, physical properties, etc. of the foam thus obtained were as shown in Table 6.
なお、試料及び測定方法は実施例１〜３におけると同様
に行った。Note that the samples and measurement methods were the same as in Examples 1 to 3.
第５表
（以下余白）
第６表
〔作用〕
この発明の発泡性組成物から発泡体を得るには、この組
成物を塩化ビニル系樹脂及びエチレン・酢酸ビニル・一
酸化炭素共重合体双方の軟化温度以上３泡剤の分解温度
以下の温度で混練し、所望形状に成形した後、これを発
泡剤の分解温度以上に加熱して発泡させる方法、或いは
成形金型に入れて発泡剤の分解温度異常に加熱発泡させ
る型発泡方法などが採られる。Table 5 (blank below) Table 6 [Function] In order to obtain a foam from the foamable composition of the present invention, this composition is mixed with both a vinyl chloride resin and an ethylene/vinyl acetate/carbon monoxide copolymer. A method of kneading at a temperature above the softening temperature and below the decomposition temperature of the foaming agent, molding it into a desired shape, and then heating it above the decomposition temperature of the foaming agent to foam it, or placing it in a mold and causing the foaming agent to decompose. A foaming method that involves heating and foaming at abnormal temperatures is used.
この場合、発泡剤の分解により発生するアンモニアの存
在下で組成物に含まれるエチレン・酢酸ビニル・一酸化
炭素共重合体が架橋する。In this case, the ethylene/vinyl acetate/carbon monoxide copolymer contained in the composition is crosslinked in the presence of ammonia generated by decomposition of the blowing agent.
このように、この発明の発泡性樹脂組成物においては、
発泡剤が架橋と発泡の二つの役割を同時に果たすので、
架橋と発泡のバランスがとれ、発泡温度を厳しくコント
ロールする必要がなく加熱発泡工程の管理が容易となる
。Thus, in the foamable resin composition of the present invention,
Since the blowing agent plays the dual roles of crosslinking and foaming,
Crosslinking and foaming are well balanced, and there is no need to strictly control the foaming temperature, making it easier to manage the heating and foaming process.
そして、エチレン・酢酸ビニル・一酸化炭素共重合体が
三次元に架橋した架橋点間に塩化ビニル系樹脂の一部も
しくは大部分が包含されることになって、得られた発泡
体は弾力性に富み、圧縮特性が優れる。即ち、圧縮永久
歪、繰返し圧縮永久歪が小さくなり、かつ、耐熱性にも
優れることになる。Part or most of the vinyl chloride resin is included between the three-dimensional crosslinking points of the ethylene/vinyl acetate/carbon monoxide copolymer, and the resulting foam has elasticity. and has excellent compression properties. That is, the compression set and repeated compression set are reduced, and the heat resistance is also excellent.
なお、エチレン・酢酸ビニル・一酸化炭素共重合体は、
塩化ビニル系樹脂５０〜８０重量部に対して２０〜５０
重量部の範囲にあるとき、上記特性が特に発現される。In addition, ethylene/vinyl acetate/carbon monoxide copolymer is
20-50 parts by weight for 50-80 parts by weight of vinyl chloride resin
The above characteristics are particularly exhibited when the amount is within the range of parts by weight.
エチレン・酢酸ビニル・一酸化炭素共重合体の配合量が
この範囲より少ないと高発泡に必要な架橋度が得られず
、逆に多すぎると塩化ビニル系樹脂の持つ難燃性、耐候
性等の特性が失われるからである。If the amount of ethylene/vinyl acetate/carbon monoxide copolymer is less than this range, the degree of crosslinking required for high foaming will not be obtained, and if it is too much, the flame retardance, weather resistance, etc. of the vinyl chloride resin will be impaired. This is because the characteristics of
この発明の発泡性樹脂組成物は、以上のとおり、特殊な
塩化ビニル系樹脂を用いる必要がなく、また、高価な放
射線照射装置や高圧設備を必要としないので経済的であ
る。また、架橋と発泡とが同時に行われので発泡管理が
容易となる。As described above, the foamable resin composition of the present invention is economical because it does not require the use of a special vinyl chloride resin and does not require expensive radiation irradiation equipment or high-pressure equipment. Moreover, since crosslinking and foaming are performed simultaneously, foaming management becomes easy.
また、得られた発泡体は圧縮特性に優れるとともに、難
燃性等の塩化ビニル系樹脂本来の特徴を損なうことがな
い。Furthermore, the obtained foam has excellent compression properties and does not impair the inherent characteristics of vinyl chloride resins such as flame retardancy.
Claims (1)
酢酸ビニル・一酸化炭素共重合体５０〜２０重量部と、
加熱によりアンモニアを含むガスを発生する発泡剤とを
含むことを特徴とする塩化ビニル系発泡性樹脂組成物。1. 50 to 80 parts by weight of vinyl chloride resin and ethylene.
50 to 20 parts by weight of vinyl acetate/carbon monoxide copolymer,
A vinyl chloride-based foamable resin composition comprising a blowing agent that generates a gas containing ammonia when heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6739185A JPS61225225A (en) | 1985-03-30 | 1985-03-30 | Expandable vinyl chloride resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6739185A JPS61225225A (en) | 1985-03-30 | 1985-03-30 | Expandable vinyl chloride resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61225225A true JPS61225225A (en) | 1986-10-07 |
Family
ID=13343634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6739185A Pending JPS61225225A (en) | 1985-03-30 | 1985-03-30 | Expandable vinyl chloride resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61225225A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010077193A (en) * | 2008-09-24 | 2010-04-08 | Panasonic Electric Works Co Ltd | Foaming agent masterbatch for vinyl chloride resin and foam molded product |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035035A (en) * | 1983-07-22 | 1985-02-22 | Du Pont Mitsui Polychem Co Ltd | Expandable vinyl chloride resin composition |
-
1985
- 1985-03-30 JP JP6739185A patent/JPS61225225A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035035A (en) * | 1983-07-22 | 1985-02-22 | Du Pont Mitsui Polychem Co Ltd | Expandable vinyl chloride resin composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010077193A (en) * | 2008-09-24 | 2010-04-08 | Panasonic Electric Works Co Ltd | Foaming agent masterbatch for vinyl chloride resin and foam molded product |
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