JP4259630B2 - Chlorinated vinyl chloride resin composition - Google Patents
Chlorinated vinyl chloride resin composition Download PDFInfo
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Description
【０００１】
【発明の属する技術分野】
本発明は、衝撃性及び耐熱性を有し、軟質塩化ビニル樹脂との融着性に優れたウエザーストリップ用塩素化塩化ビニル系樹脂組成物に関する。
【０００２】
【従来の技術】
自動車用窓ガラスの下縁部に取り付けられる水切り（ウエザ−ストリップという）は車内に雨水、埃等の進入を防ぐために使用されている。このウエザ−ストリップとしては、例えば、図１のような断面形状であり、１はステンレス、または塩化ビニル系樹脂からなり、２は軟質塩化ビニル系樹脂からなるものなどが製品化されている。図中３はガラスである。
【０００３】
塩素化塩化ビニル系樹脂（以下、ＣＰＶＣという）は、一般に塩化ビニル系樹脂（以下、ＰＶＣという）を塩素化して作られる。ＣＰＶＣはＰＶＣの長所といわれる難燃性、耐薬品性の特性を残し、かつＰＶＣの欠点といわれる耐熱温度が低い点を改良しているので広い用途が期待されている。一方ＰＶＣは熱変形温度が低いために、６０〜７０℃以上では使用できないという大きな欠点をもっている。
これに対しＣＰＶＣは熱変形温度がＰＶＣより２０〜４０℃も高く、ＰＶＣの欠点である耐熱性が改良されている。従って、自動車用途にも幅広く使用されており、窓ガラス周りを気密にするためのウエザーストリップに多く使用されている。
【０００４】
従来、ウエザ−ストリップはステンレス等の金属に軟質ＰＶＣ系樹脂または、ゴム等で組み合わせたものが用いられていた。しかし、最近になり車の軽量化、環境問題からのリサイクル性に問題があり、またコストダウンの要求には従来のステンレス等のものでは対応が難しく、ステンレスを代替しうる樹脂化の要求があった。
【０００５】
現在、樹脂化されたウエザ−ストリップとしてＣＰＶＣ製品が好適に用いられている。本用途のＣＰＶＣには鉛系安定剤を主にしたものが多く使用されているが、環境問題から自動車メーカーからは鉛系安定剤を含有しないＣＰＶＣが要望されている。しかし、鉛系安定剤に代えて、例えば、錫系安定剤を使用するとＣＰＶＣの最大の特徴である耐熱性が大きく損なわれ、また成形が難しく、ロングラン性に乏しく、軟質ＰＶＣとの融着性にも問題があった。
【０００６】
【発明が解決しようとする課題】
本発明は、上記問題点を解決するものであって、ＣＰＶＣを使用し、鉛安定剤を使用せず、成形性が良好で軟質ＰＶＣとの融着性に優れたＣＰＶＣを提供することを目的とし、さらにウエザーストリップ用途に適したＣＰＶＣ組成物を提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明のウエザーストリップ用塩素化塩化ビニル系樹脂組成物は、平均塩素含有量が６０〜７０重量％である塩素化塩化ビニル樹脂単体または塩化ビニル樹脂との混合物１００重量部、珪酸マグネシウム、珪酸カルシウム又は珪酸亜鉛のうち少なくとも１種以上の安定剤０．５〜６重量部からなり、該安定剤以外の安定剤を含まないことを特徴とする。
【０００８】
本発明で使用されるＣＰＶＣの平均重合度は、塩素化前のＰＶＣの平均重合度として５００〜１４００が好ましい。平均重合度が５００未満では衝撃性が低下し、１４００を超えると溶融流動性が低下し、成形が困難となるからである。
【０００９】
また、ＣＰＶＣの平均塩素含有量は６０〜７０重量％に限定される。平均塩素含有量が６０重量％未満では耐熱性が低下し変形が発生しやすくなり、７０重量％を超えると流動性が大きく低下し、成形が困難となるからである。また、ＰＶＣと併用する場合も同様で６０〜７０重量％の範囲に限定される。
【００１０】
本発明で使用される安定剤は珪酸マグネシウム、珪酸カルシウム又は珪酸亜鉛であり、単独で用いられてもよく２種以上が併用されてもよい。
【００１５】
上記安定剤の使用量は、樹脂成分１００重量部に対して０．５〜６重量部に限定される。０．５重量部未満ではＣＰＶＣ組成物が熱安定性に乏しく、６重量部を超えるとＣＰＶＣの溶融流動性が低下し成形が困難となる。
【００１６】
本発明で使用されるワックスは、例えばカルナバワックス、キャンデラワックス等の天然ワックス類；パラフィンワックス類等の石油系ワックス類；ポリエチレン系ワックス、及びモンタン酸系のワックスが好ましい。上記のワックスは単独で用いられてもよいし、併用されてもよい。
【００１７】
ポリエチレン系ワックスはほとんど全てのものが使用できるが、好ましくは重量分子量が１０００〜４０００の範囲のものである。
モンタン酸系ワックスについては分子量等の制限はなく何れも好適に使用できる。
【００１８】
上記ワックスの使用量としては樹脂成分１００重量部に対して０．２〜５重量部が好ましい。０．２重量部未満では成形性の改良効果が不十分であり、５重量部を超えると弾性率及び耐熱温度が低下する。
ポリエチレン系ワックスとモンタン酸系ワックスとを併用する場合は、ポリエチレン系ワックスの使用量は樹脂成分１００重量部に対して０．１〜４．９重量部であり、モンタン酸系ワックスの使用量は樹脂成分１００重量部に対して０．１〜１．５重量部である。
【００１９】
本発明で用いられるメチルメタクリレート・ブタジエン・スチレン共重合樹脂（以下ＭＢＳという）とは、ポリブタジエン系等のゴム系樹脂にメチルアクリレート等のアクリル系化合物とスチレン系の化合物をグラフト重合させた樹脂であり、ゴム成分５０〜８０重量％のものが好ましい。ゴム成分が５０重量％未満では、衝撃性改良効果が少なく、８０重量％を超えると弾性率及び耐熱温度が低下する。ＭＢＳの使用量としては樹脂成分１００重量部に対して、１〜３０重量部に制限される。１重量部未満では衝撃性改良の目的を達せず、３０重量部を超えると弾性率及び耐熱温度が低下する。
【００２０】
その他の耐衝撃改良剤として、塩素化ポリエチレン、ＡＢＳ樹脂等があるが、塩素化ポリエチレンは成形の時点で配向し易いため耐衝撃性が発現しにくく、また、ＡＢＳ樹脂は耐衝撃性の発現性が低く多量の添加が必要となり、また、ＣＰＶＣに比べ耐溶剤性が劣るため本用途には適さない。
【００２１】
本発明の組成物の用途はウエザーストリップである。
【００２２】
本発明のＣＰＶＣ組成物は、押出成形法、射出成形法にて成形可能であるが、押出成形法がより適している。
本発明のＣＰＶＣ組成物を押出成形を行うには、例えば、組成物をスーパーミキサ−で均一に分散した混合物、またはこの混合物を押出機に供給しペレタイザ−で切断して得られたペレットを押出成形すればよい。
【００２３】
【発明の実施の形態】
以下に実施例を掲げて本発明を更に詳しく説明するが、本発明はこれら実施例のみに限定されるものではない。
【００２４】
（実施例１〜６、比較例１〜３）
表１、表２に示す配合量の各成分をスーパ−ミキサ−で均一に混合した樹脂組成物を、シリンダ−温度をそれぞれ（Ｃ１：１５０℃、Ｃ２：１６０℃、Ｃ３：１７０℃、Ｃ４：１７５℃）に設定し、アダプタ−温度１７０℃、ダイ温度１７０℃に設定した３０ｍｍ２軸異方向押出機に供給し、ペレタイザ−で切断してペレットを得た。
次いでペレットを６５ｍｍシングル押出機（Ｌ／Ｄ＝２２、フルフライトスクリュ−、圧縮比＝３．０）でバレル温度をそれぞれ（Ｂ１：１５０℃、Ｂ２：１６０℃、Ｂ３：１７０℃）に設定し、ダイ温度をそれぞれ（ＤＨ：１７５℃、Ｄ１：１７５℃、Ｄ２：１８５℃）に設定した。また、使用した軟質ＰＶＣは重合度が１４００のＰＶＣ１００重量部にジオクチルフタレート（可塑剤）７５重量部と、錫安定剤としてオクチル錫メルカプトを１．５重量部、ステアリン酸カルシウム０．５重量部、炭酸カルシウム１５重量部を加えたものをペレットしたものを用いた。上記の６５ｍｍシングル押出機にＣＰＶＣを、また、４０ｍｍシングル押出機に軟質ＰＶＣを入れ、両者を１つのダイに導いて厚さ３ｍｍの共押出成形体を作成した。（図２参照）
【００２５】
表１、表２に示す原材料は以下のものを使用した。
＊１ＣＰＶＣ：徳山積水工業社製（原料ＰＶＣ重合度８００、塩素含有量６４重量％）
＊２ＣＰＶＣ：徳山積水工業社製（原料ＰＶＣ重合度８００、塩素含有量６０重量％）
ＰＶＣ：徳山積水工業社製ＴＳ−８００Ｅ（重合度８００）
ケイ酸カルシウム：水澤化学社製
ケイ酸マグネシウム：水澤化学社製
三塩基性硫酸鉛：堺化学工業社製
オクチル錫メルカプト：三共有機合成社製
ＭＢＳ：呉羽化学工業社製ＢＴＡ−７５１（ブタジエン含有量７５重量％）
ポリエチレンワックス：三井石油化学工業社製三井ハイワックス２００Ｐ（分子量２０００）
モンタン酸ワックス：ヘキストジャパン社製ヘキストワックスＯＰ
【００２６】
上記実施例、及び比較例で得られた成形体を用いて下記の性能評価を行い、その結果を表１、表２に示した。
【００２７】
（１）シャルピ−衝撃試験
上記樹脂組成物を２００℃のロ−ルにて３分間混練後、２００℃のプレスにて予熱４分、加圧５分、面圧７５ｋｇ／ｃｍ2 にて厚さ３ｍｍの板を作成し、ＪＩＳ−Ｋ７１１１に準拠して、５号試験片にて切欠き有りで、２３℃で測定した。
実用上、衝撃強度 ８ｋｇ／ｃｍ2 以上が必要である。
（２）加熱変形温度
上記（１）と同様にして試験片を作成し、ＪＩＳ Ｋ７２０７に準拠して測定した。実用上、加熱変形温度は８０℃以上は必要である。
（３）融着性
共押出成形で得られた厚さ３ｍｍ成形体の硬質部分（ＣＰＶＣ成分）と軟質部分（軟質ＰＶＣ成分）との間の融着性を、ＪＩＳ−Ｋ６８５４に準拠して１８０°はくり試験を行い、その時の剥離強度を測定し判定した。
【００２８】
（４）表面性
上記（２）と同様にして得られた成形体の表面状態を目視にて観察し以下のようにランクをつけた。
◎：表面が非常に平滑で良好 ○：良好 △：若干波打ちあり ×：大きく波打ちあり ××：非常に悪い
（５）金型付着性
上記ペレットを３０ｍｍシングル押出機（Ｌ／Ｄ＝２２、フルフライトスクリュー、圧縮比＝３．０）でバレル温度をそれぞれ（Ｂ１：１６０℃、Ｂ２：１７０℃、Ｂ３：１８０℃）に設定し、ダイ温度を１９０℃に設定し、回転数４０ｒｐｍとして押出成形を行った。金型は２ｍｍ×２０ｍｍの直線状スリットを持った金型にて１時間押出し金型内部を観察して金型への付着状況を観察し以下のようにランクをつけた。
◎：金型付着が全くなく非常に良好 ○：良好 △：すこし付着あり ×：金型全体に付着
【００２９】
【表１】
【表２】
表１の実施例１〜６においては、融着性、耐熱性、耐衝撃性、ロングラン性の何れの特性も満足している。これに対して表２の比較例１〜３においては、鉛系安定剤を使用した樹脂組成物を除いて、融着性、耐熱性、耐衝撃性、ロングラン性の何れかの特性が不十分である。
【００３２】
本発明のウエザーストリップ用塩素化塩化ビニル系樹脂組成物は上述の如く構成されており、安定剤として珪酸マグネシウム、珪酸カルシウム又は珪酸亜鉛を用いることにより、鉛系安定剤に匹敵する融着性、耐熱性が得られ、更にＭＢＳ樹脂、ワックスを併用添加する事により耐衝撃性、ロングラン性も優れたものとなる。
【００３３】
【図面の簡単な説明】
【図１】従来のウエザ−ストリップを示す模式断面図である。
【図２】共押出成形体の製造方法の一例を示す共押出成形金型の模式断面図である。
【符号の説明】
１ ステンレス、又はＰＶＣ
２ 軟質ＰＶＣ
３ ガラス
４ ＣＰＶＣ用押出機
５ 軟質ＰＶＣ用押出機
６ 共押出金型
７ ＣＰＶＣ流路
８ 軟質ＰＶＣ流路[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chlorinated vinyl chloride resin composition for weather strips , which has impact properties and heat resistance and is excellent in fusibility with a soft vinyl chloride resin.
[0002]
[Prior art]
A drainer (referred to as a weather strip) attached to the lower edge of an automotive window glass is used to prevent rainwater, dust and the like from entering the vehicle. For example, the weather strip has a cross-sectional shape as shown in FIG. 1, and 1 is made of stainless steel or vinyl chloride resin, and 2 is made of soft vinyl chloride resin. In the figure, 3 is glass.
[0003]
A chlorinated vinyl chloride resin (hereinafter referred to as CPVC) is generally made by chlorinating a vinyl chloride resin (hereinafter referred to as PVC). CPVC is expected to be widely used because it has the characteristics of flame retardancy and chemical resistance, which are the advantages of PVC, and has improved the low heat resistance, which is a disadvantage of PVC. On the other hand, since PVC has a low heat distortion temperature, it has a major drawback that it cannot be used at 60 to 70 ° C. or higher.
In contrast, CPVC has a heat deformation temperature 20 to 40 ° C. higher than PVC, and heat resistance, which is a drawback of PVC, is improved. Therefore, it is widely used for automobile applications and is often used for weather strips for airtightness around the window glass.
[0004]
Conventionally, the weather strip used is a combination of a metal such as stainless steel with a soft PVC resin or rubber. Recently, however, there are problems with the weight reduction of cars and recyclability due to environmental problems. Also, it is difficult to meet the demands for cost reduction with conventional stainless steel, etc., and there is a demand for resin that can replace stainless steel. It was.
[0005]
Currently, CPVC products are suitably used as resinized weather strips. Many CPVCs mainly used for lead-based stabilizers are used in this application, but CPVC containing no lead-based stabilizers is demanded by automobile manufacturers due to environmental problems. However, if a tin stabilizer is used instead of a lead stabilizer, for example, the heat resistance, which is the biggest feature of CPVC, is greatly impaired, it is difficult to mold, the long run property is poor, and the fusion property with soft PVC There was also a problem.
[0006]
[Problems to be solved by the invention]
The present invention solves the above-mentioned problems, and aims to provide a CPVC that uses CPVC, does not use a lead stabilizer, has good moldability, and is excellent in fusibility with soft PVC. Furthermore, it aims at providing the CPVC composition suitable for a weatherstrip use.
[0007]
[Means for Solving the Problems]
The chlorinated vinyl chloride resin composition for weather strips of the present invention comprises 100 parts by weight of a chlorinated vinyl chloride resin alone or a mixture with a vinyl chloride resin having an average chlorine content of 60 to 70% by weight, magnesium silicate, calcium silicate Or it consists of 0.5-6 weight part of at least 1 or more types of stabilizer among zinc silicates , and does not contain stabilizers other than this stabilizer .
[0008]
The average degree of polymerization of CPVC used in the present invention is preferably 500 to 1400 as the average degree of polymerization of PVC before chlorination. When the average degree of polymerization is less than 500, the impact property is lowered, and when it exceeds 1400, the melt fluidity is lowered and molding becomes difficult.
[0009]
Moreover, the average chlorine content of CPVC is limited to 60 to 70% by weight. If the average chlorine content is less than 60% by weight, the heat resistance is lowered and deformation tends to occur. Moreover, when using together with PVC, it is similarly limited to the range of 60 to 70% by weight.
[0010]
The stabilizer used in the present invention is magnesium silicate, calcium silicate or zinc silicate, which may be used alone or in combination of two or more.
[0015]
The usage-amount of the said stabilizer is limited to 0.5-6 weight part with respect to 100 weight part of resin components. If the amount is less than 0.5 parts by weight, the CPVC composition has poor thermal stability. If the amount exceeds 6 parts by weight, the melt flowability of CPVC decreases and molding becomes difficult.
[0016]
The wax used in the present invention is preferably natural waxes such as carnauba wax and candela wax; petroleum waxes such as paraffin wax; polyethylene waxes and montanic acid waxes. Said wax may be used independently and may be used together.
[0017]
Almost all polyethylene waxes can be used, but those having a weight molecular weight in the range of 1000 to 4000 are preferred.
As for the montanic acid-based wax, any molecular weight can be suitably used without any limitation.
[0018]
The amount of the wax used is preferably 0.2 to 5 parts by weight with respect to 100 parts by weight of the resin component. If it is less than 0.2 parts by weight, the effect of improving the moldability is insufficient, and if it exceeds 5 parts by weight, the elastic modulus and the heat-resistant temperature are lowered.
When polyethylene wax and montanic acid wax are used in combination, the amount of polyethylene wax used is 0.1 to 4.9 parts by weight with respect to 100 parts by weight of the resin component, and the amount of montanic acid wax used is It is 0.1-1.5 weight part with respect to 100 weight part of resin components.
[0019]
The methyl methacrylate / butadiene / styrene copolymer resin (hereinafter referred to as MBS) used in the present invention is a resin obtained by graft polymerization of an acrylic compound such as methyl acrylate and a styrene compound to a rubber resin such as polybutadiene. The rubber component is preferably 50 to 80% by weight. If the rubber component is less than 50% by weight, the impact improving effect is small, and if it exceeds 80% by weight, the elastic modulus and heat resistance temperature are lowered. The amount of MBS used is limited to 1 to 30 parts by weight with respect to 100 parts by weight of the resin component. If the amount is less than 1 part by weight, the purpose of improving the impact property is not achieved, and if it exceeds 30 parts by weight, the elastic modulus and the heat-resistant temperature are lowered.
[0020]
Other impact resistance improvers include chlorinated polyethylene, ABS resin, etc., but chlorinated polyethylene is less likely to exhibit impact resistance because it is easily oriented at the time of molding, and ABS resin is more likely to exhibit impact resistance. In addition, a large amount of addition is required, and the solvent resistance is inferior to that of CPVC.
[0021]
The application of the composition of the present invention is a weather strip .
[0022]
The CPVC composition of the present invention can be molded by an extrusion molding method or an injection molding method, but the extrusion molding method is more suitable.
In order to extrude the CPVC composition of the present invention, for example, a mixture in which the composition is uniformly dispersed by a super mixer, or a pellet obtained by feeding this mixture to an extruder and cutting it by a pelletizer is extruded. What is necessary is just to shape | mold.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to these examples.
[0024]
(Examples 1-6, Comparative Examples 1-3)
The resin compositions obtained by uniformly mixing the components of the blending amounts shown in Table 1 and Table 2 with a super mixer were used for the cylinder temperatures (C1: 150 ° C, C2: 160 ° C, C3: 170 ° C, C4: 175 ° C.), supplied to a 30 mm biaxial opposite-direction extruder set at an adapter temperature of 170 ° C. and a die temperature of 170 ° C., and cut by a pelletizer to obtain pellets.
Next, the pellets were set at a barrel temperature (B1: 150 ° C., B2: 160 ° C., B3: 170 ° C.) with a 65 mm single extruder (L / D = 22, full flight screw, compression ratio = 3.0). The die temperature was set to (DH: 175 ° C, D1: 175 ° C, D2: 185 ° C), respectively. The soft PVC used was 100 parts by weight of PVC having a polymerization degree of 1400, 75 parts by weight of dioctyl phthalate (plasticizer), 1.5 parts by weight of octyl tin mercapto as a tin stabilizer, 0.5 parts by weight of calcium stearate, carbonic acid carbonate A pellet obtained by adding 15 parts by weight of calcium was used. CPVC was put into the 65 mm single extruder and soft PVC was put into a 40 mm single extruder, and both were led to one die to prepare a coextruded molded body having a thickness of 3 mm. (See Figure 2)
[0025]
The raw materials shown in Tables 1 and 2 were as follows.
* 1 CPVC: Tokuyama Sekisui Industry Co., Ltd. (raw material PVC polymerization degree 800, chlorine content 64% by weight)
* 2 CPVC: Tokuyama Sekisui Industry Co., Ltd. (raw material PVC polymerization degree 800, chlorine content 60% by weight)
PVC: TS-800E (polymerization degree 800) manufactured by Tokuyama Sekisui Industry Co., Ltd.
Calcium silicate: Mizusawa Chemical Co., Ltd. Magnesium silicate: Mizusawa Chemical Co., Ltd. tribasic lead sulfate: Sakai Chemical Industry Co., Ltd. Octyl Tin Mercapto: Sansha Co., Ltd. Co., Ltd. MBS: Kureha Chemical Industry Co., Ltd. BTA-751 (Butadiene-containing (75% by weight)
Polyethylene wax: Mitsui High Wax 200P (molecular weight 2000) manufactured by Mitsui Petrochemical Co., Ltd.
Montanic acid wax: Hoechst Wax OP manufactured by Hoechst Japan
[0026]
The following performance evaluation was performed using the molded bodies obtained in the above Examples and Comparative Examples, and the results are shown in Tables 1 and 2.
[0027]
(1) Charpy impact test The above resin composition was kneaded for 3 minutes at 200 ° C. roll, then preheated at 200 ° C. press for 4 minutes, pressurized for 5 minutes, surface pressure of 75 kg / cm 2 . A 3 mm plate was prepared and measured at 23 ° C. with a No. 5 test piece in accordance with JIS-K7111.
Practically, an impact strength of 8 kg / cm 2 or more is necessary.
(2) Heat deformation temperature A test piece was prepared in the same manner as in (1) above and measured according to JIS K7207. Practically, the heating deformation temperature needs to be 80 ° C. or higher.
(3) Fusion property The fusion property between a hard portion (CPVC component) and a soft portion (soft PVC component) of a molded product having a thickness of 3 mm obtained by coextrusion molding is 180 in accordance with JIS-K6854. A peel test was performed, and the peel strength at that time was measured and judged.
[0028]
(4) Surface property The surface state of the molded body obtained in the same manner as in the above (2) was visually observed and ranked as follows.
◎: Surface is very smooth and good ○: Good △: Slightly wavy ×: Very wavy xx: Very bad (5) Mold adhesion 30 mm single extruder (L / D = 22, full) The barrel temperature was set to (B1: 160 ° C, B2: 170 ° C, B3: 180 ° C), the die temperature was set to 190 ° C, and the extrusion was performed at a rotation speed of 40 rpm. Went. The mold was extruded with a mold having a linear slit of 2 mm × 20 mm for 1 hour, the inside of the mold was observed, the state of adhesion to the mold was observed, and the ranking was as follows.
◎: Very good with no adhesion of mold ○: Good △: Slight adhesion ×: Adhered to the whole mold [0029]
[Table 1]
[Table 2]
In Examples 1 to 6 in Table 1, all the characteristics of fusing property, heat resistance, impact resistance, and long run property are satisfied. On the other hand, in Comparative Examples 1 to 3 in Table 2, any of the characteristics of fusing property, heat resistance, impact resistance, and long run property is insufficient except for the resin composition using a lead-based stabilizer. It is.
[0032]
The chlorinated vinyl chloride resin composition for weather strips of the present invention is configured as described above, and by using magnesium silicate, calcium silicate or zinc silicate as a stabilizer, a fusion property comparable to a lead stabilizer, Heat resistance can be obtained, and further, impact resistance and long run properties can be improved by adding MBS resin and wax together.
[0033]
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing a conventional weather strip.
FIG. 2 is a schematic cross-sectional view of a coextrusion mold showing an example of a method for producing a coextrusion molded body.
[Explanation of symbols]
1 Stainless steel or PVC
2 Soft PVC
3 Glass 4 CPVC Extruder 5
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12956597A JP4259630B2 (en) | 1997-05-20 | 1997-05-20 | Chlorinated vinyl chloride resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12956597A JP4259630B2 (en) | 1997-05-20 | 1997-05-20 | Chlorinated vinyl chloride resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10315350A JPH10315350A (en) | 1998-12-02 |
| JP4259630B2 true JP4259630B2 (en) | 2009-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP12956597A Expired - Lifetime JP4259630B2 (en) | 1997-05-20 | 1997-05-20 | Chlorinated vinyl chloride resin composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001139747A (en) * | 1999-11-12 | 2001-05-22 | Kanegafuchi Chem Ind Co Ltd | Chlorinated vinyl chloride-based resin composition |
| CN104403198A (en) * | 2014-11-30 | 2015-03-11 | 湖南科技大学 | Preparation method for calcium silicate/polyolefin composite material |
| CN115073871A (en) * | 2022-07-15 | 2022-09-20 | 浙江煜华车饰有限公司 | Wear-resistant PVC plastic and preparation method thereof |
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| JPH10315350A (en) | 1998-12-02 |
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