JPH10279757A - Vinyl chloride-based resin composition and molding product by using the same - Google Patents

Vinyl chloride-based resin composition and molding product by using the same

Info

Publication number
JPH10279757A
JPH10279757A JP9086530A JP8653097A JPH10279757A JP H10279757 A JPH10279757 A JP H10279757A JP 9086530 A JP9086530 A JP 9086530A JP 8653097 A JP8653097 A JP 8653097A JP H10279757 A JPH10279757 A JP H10279757A
Authority
JP
Japan
Prior art keywords
weight
vinyl chloride
copolymer
resin
parts
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
Application number
JP9086530A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Kaneko
和義 金子
Hideji Matsumura
松村  秀司
Shuichi Murakami
修一 村上
Yuji Kurashige
雄二 倉重
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Chemicals Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Chemicals Inc filed Critical Mitsui Chemicals Inc
Priority to JP9086530A priority Critical patent/JPH10279757A/en
Publication of JPH10279757A publication Critical patent/JPH10279757A/en
Pending legal-status Critical Current

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  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition having improved thermal resistance and impact resistance, and further excellent in weather resistance by using a chlorinated polyethylene resin. SOLUTION: This resin composition comprises (A) 100 pts.wt. vinyl chloride- based resin, (B) 15-60 pts.wt. copolymer resin obtained by copolymerizing (i) 30-90% α-methylstyrene, (ii) 10-50% unsaturated nitrile, (iii) 0-30% N-aromatic maleimide and optionally a vinylic monomer copolymerizable therewith, (C) 15-80 pts.wt. chlorinated polyethylene having 25-45% chlorine content. Further, the resin composition has 90-105 deg.C temperature of the primary dispersion peak of tan δ in the dynamic viscoelasticity measurement at 1 Hz frequency, 93-105 deg.C Vicat softening point, 70-85 deg.C deflection temperature under load(HDT) and an izod impact strength within the range of >=5 kgf-cm/cm to non-break region.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は耐熱性および耐衝撃
性に優れた塩化ビニル系樹脂組成物およびそれを用いた
成形物に関し、詳しくは、塩化ビニル系樹脂に対して、
塩化ビニル単独重合体よりもガラス転移温度が高い共重
合体樹脂と塩素化ポリエチレンを含有させることによ
り、耐熱性および耐衝撃性、さらには耐侯性などの物性
バランスに優れた塩化ビニル系樹脂組成物およびそれを
用いた成形物に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vinyl chloride resin composition having excellent heat resistance and impact resistance and a molded article using the same.
Vinyl chloride resin composition with excellent physical properties such as heat resistance, impact resistance, and weather resistance by containing a chlorinated polyethylene and a copolymer resin having a higher glass transition temperature than vinyl chloride homopolymer. And molded articles using the same.

【0002】[0002]

【従来の技術】従来、硬質塩化ビニル系樹脂は、動的粘
弾性において、周波数1Hzで測定した場合のtanδ
の主分散ピ−ク値(ガラス転移温度)が78℃〜82℃
付近であり、耐熱性の代表的な物性として、ビカット軟
化点が88℃付近、HDTが69℃付近であり、tan
δの主分散ピーク値が120℃以上のAS系やABS系
の樹脂に対して耐熱性が劣ることは既に知られている。
そこで、塩化ビニル系樹脂に対して、tanδの主分散
ピーク値の高いAS系やABS系の樹脂を含有すること
により耐熱性を向上させる試みは数多く行われている。
しかし、AS系樹脂を添加する場合、耐熱性は向上する
が耐衝撃性が低下し、一般の硬質塩化ビニル系組成物で
はアイゾット衝撃強度は2〜4kgf・cm/cmと低
く、耐熱性と耐衝撃性の両方を向上させることは難し
い。
2. Description of the Related Art Conventionally, rigid vinyl chloride resin has a dynamic viscoelasticity of tan δ when measured at a frequency of 1 Hz.
Peak dispersion value (glass transition temperature) of 78 ° C. to 82 ° C.
The typical physical properties of the heat resistance are a Vicat softening point of about 88 ° C., an HDT of about 69 ° C., and tan.
It is already known that the heat resistance is inferior to AS-based and ABS-based resins having a main dispersion peak value of δ of 120 ° C. or higher.
Therefore, many attempts have been made to improve the heat resistance by containing an AS-based or ABS-based resin having a high tan δ main dispersion peak value with respect to a vinyl chloride-based resin.
However, when an AS-based resin is added, the heat resistance is improved but the impact resistance is reduced. In a general hard vinyl chloride-based composition, the Izod impact strength is as low as 2 to 4 kgf · cm / cm. It is difficult to improve both impact properties.

【0003】また、ABS系樹脂では、ブタジエンゴム
が含まれる分だけ耐熱性と共に耐衝撃性も向上するが、
耐候性が低下する欠点を含んでいる。そのため、耐衝撃
性および耐熱性を加味し、さらに耐候性の必要な屋外用
途向けの分野への展開が難しい。
[0003] In addition, in the ABS resin, the heat resistance and the impact resistance are improved by the amount of the butadiene rubber.
It has the disadvantage that the weather resistance is reduced. For this reason, it is difficult to develop the field for outdoor applications that require impact resistance and heat resistance and further require weather resistance.

【0004】また、塩化ビニル系樹脂を用いたサイディ
ング材用途では、日本は四季の変化があり、特に夏場は
気温が40℃近くまで上昇することがあるため、屋外使
用の樹脂成形品の表面温度は70℃近くまで上昇すると
考えられ、塩化ビニル系樹脂単独では使用可能範囲を越
えてしまい、塩化ビニル系樹脂の用途の範囲が限られて
しまう。
[0004] Further, in the siding material application using a vinyl chloride resin, Japan has four seasons, and particularly in summer, the temperature may rise to nearly 40 ° C. Is considered to rise to nearly 70 ° C., and the vinyl chloride resin alone exceeds the usable range, and the range of use of the vinyl chloride resin is limited.

【0005】[0005]

【発明が解決しようとする課題】これを解決する手段と
して、αメチルスチレン・不飽和ニトリル・N−芳香族
マレイミドからなる単量体混合物を共重合させて得られ
る共重合体を配合し、耐熱性を得る技術(特開昭58−
13650号)がある。これは、さらに耐衝撃強化剤ゴ
ム状重合体として、例えば、アクリル酸エステル共重合
体、ABS系共重合体、MBS系共重合体などを0〜7
0重量部含んだ系での技術がある。しかし、この方法に
よれば、塩化ビニル系樹脂のガラス転移温度(78℃〜
82℃)に比べ、αメチルスチレン・不飽和ニトリル・
N−芳香族マレイミド共重合体樹脂のガラス転移温度が
130〜160℃と高いため、ペレット造粒時(造粒時
温度:135〜150℃)に均一に混ざらず、造粒した
ペレットは、目視でαメチルスチレン・不飽和ニトリル
・N−芳香族マレイミドの共重合体樹脂塊があることが
わかる。しかも、塩化ビニル系樹脂とαメチルスチレン
・不飽和ニトリル・N−芳香族マレイミド共重合体樹脂
は、部分相溶性または非相溶性であることが透過型電子
顕微鏡写真の2相構造から判明しており、混ざりにくい
ものである。
As a means for solving this problem, a copolymer obtained by copolymerizing a monomer mixture consisting of α-methylstyrene / unsaturated nitrile / N-aromatic maleimide is blended, Technology to obtain the property
No. 13650). This further includes, as an impact-resistant reinforcing rubber-like polymer, an acrylic ester copolymer, an ABS copolymer, an MBS copolymer, or the like.
There is a technique in a system containing 0 parts by weight. However, according to this method, the glass transition temperature of the vinyl chloride resin (78 ° C.
82 ° C) compared to α-methylstyrene, unsaturated nitrile,
Since the glass transition temperature of the N-aromatic maleimide copolymer resin is as high as 130 to 160 ° C., it is not uniformly mixed during pellet granulation (granulation temperature: 135 to 150 ° C.). It can be seen that there is a lump of α-methylstyrene / unsaturated nitrile / N-aromatic maleimide copolymer resin. Moreover, it was found from the two-phase structure of the transmission electron micrograph that the vinyl chloride resin and the α-methylstyrene / unsaturated nitrile / N-aromatic maleimide copolymer resin were partially compatible or incompatible. It is hard to mix.

【0006】また、耐衝撃性においては、耐熱性向上の
ためにABS系樹脂やAS系樹脂を添加すると、衝撃強
度の低下を引き起こし、耐熱性と耐衝撃性は相反する性
質を持っている。本発明は上記の従来の方法での問題点
を解決し、耐熱性および耐衝撃性を改善し、しかも耐候
性に優れた塩化ビニル系樹脂組成物および成形物を提供
することを目的とするものである。
In addition, regarding the impact resistance, when an ABS resin or an AS resin is added to improve the heat resistance, the impact strength is reduced, and the heat resistance and the impact resistance are contradictory. SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the conventional method, improve heat resistance and impact resistance, and provide a vinyl chloride resin composition and a molded article having excellent weather resistance. It is.

【0007】[0007]

【課題を解決するための手段】本発明者らは、かかる問
題点を解決するため鋭意研究を行った結果、耐熱性と耐
衝撃性との物性バランスを得るため塩素化ポリエチレン
樹脂を用いることに端を発し本発明に到達したものであ
る。すなわち本発明は、塩化ビニル系樹脂100重量部
に対し、α−メチルスチレンが30〜90重量%、不飽
和ニトリルが10〜50重量%、N−芳香族マレイミド
が0〜30重量%およびこれらと共重合可能なビニル系
単量体を必要に応じて共重合させて得られる共重合体樹
脂15〜60重量部と塩素含有率が25〜45重量%の
塩素化ポリエチレン樹脂15〜80重量部から成る、動
的粘弾性において周波数1Hzで測定した場合のtan
δの主分散ピーク値(ガラス転移温度)が90℃以上1
05℃以下、ビカット軟化点が93℃以上105℃以
下、荷重−たわみ温度(HDT)が70℃以上85℃以
下であり、かつアイゾット衝撃強度が5kgf・cm/
cm以上不破壊領域以下である耐熱性および耐衝撃性に
優れた塩化ビニル系樹脂組成物である。また本発明は、
前記塩化ビニル系樹脂組成物を溶融成形して成る塩化ビ
ニル系樹脂成形物である。
Means for Solving the Problems The inventors of the present invention have conducted intensive studies in order to solve such problems, and as a result, have found that a chlorinated polyethylene resin is used in order to obtain a balance between heat resistance and impact resistance. The invention originated from the beginning and reached the present invention. That is, according to the present invention, α-methylstyrene is 30 to 90% by weight, unsaturated nitrile is 10 to 50% by weight, N-aromatic maleimide is 0 to 30% by weight and 100% by weight of the vinyl chloride resin. From 15 to 60 parts by weight of a copolymer resin obtained by copolymerizing a copolymerizable vinyl monomer as required and from 15 to 80 parts by weight of a chlorinated polyethylene resin having a chlorine content of 25 to 45% by weight. Tan when measured at a frequency of 1 Hz in dynamic viscoelasticity
Main dispersion peak value of δ (glass transition temperature) is 90 ° C or higher and 1
05 ° C or less, Vicat softening point of 93 ° C or more and 105 ° C or less, load-deflection temperature (HDT) of 70 ° C or more and 85 ° C or less, and Izod impact strength of 5 kgf · cm /
It is a vinyl chloride resin composition having excellent heat resistance and impact resistance of not less than cm and not more than a non-destructive region. The present invention also provides
A vinyl chloride resin molded product obtained by melt-molding the vinyl chloride resin composition.

【0008】[0008]

【発明の実施の形態】本発明において、塩化ビニル系樹
脂とは、塩化ビニル単独重合体あるいはアルキルアクリ
レートおよび/またはアルキルメタアクリレートと多官
能性単量体との共重合体に対して、塩化ビニルをグラフ
ト共重合させてなる塩化ビニル系グラフト共重合体であ
る。
BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a vinyl chloride resin refers to a vinyl chloride homopolymer or a copolymer of an alkyl acrylate and / or an alkyl methacrylate and a polyfunctional monomer. Is a vinyl chloride-based graft copolymer obtained by graft copolymerization of

【0009】塩化ビニル系樹脂として塩化ビニル単独重
合体を用いる場合、塩化ビニル単独重合体の製造方法は
従来公知の重合方法で行われ、例えば懸濁重合などが挙
げられる。その重合度は、通常400〜1300程度で
あり、好ましくは800〜1200、さらに好ましくは
900〜1100である。重合度が400未満であると
強度が不足し、また1300を越える場合は成形加工性
が低下する。
When a vinyl chloride homopolymer is used as the vinyl chloride resin, the vinyl chloride homopolymer is produced by a conventionally known polymerization method, such as suspension polymerization. The polymerization degree is usually about 400 to 1300, preferably 800 to 1200, and more preferably 900 to 1100. If the degree of polymerization is less than 400, the strength is insufficient, and if it exceeds 1300, the moldability deteriorates.

【0010】ここで塩化ビニル単独重合体としては、例
えば、市販されている大洋塩ビ(株)社製のTH−50
0、TH−600、TH−700、TH−800、TH
−1000、TH−1300等を用いることができ、重
合度はそれぞれ500、600、700、800、10
00、1300である。
The vinyl chloride homopolymer includes, for example, TH-50 manufactured by Taiyo Vinyl Co., Ltd. which is commercially available.
0, TH-600, TH-700, TH-800, TH
-1000, TH-1300, etc., and the degree of polymerization is 500, 600, 700, 800, 10 respectively.
00 and 1300.

【0011】また、塩化ビニル系樹脂として塩化ビニル
をグラフト共重合させてなる塩化ビニル系グラフト共重
合体を用いる場合、その塩化ビニル系グラフト共重合体
とは、アルキルアクリレートおよび/またはアルキルメ
タアクリレートと多官能性単量体との共重合体(以下、
アクリル系共重合体と記す。)に対して、塩化ビニルを
グラフト共重合させる。詳しくは、アクリル系共重合体
1〜30重量部に塩化ビニルを99〜70重量部グラフ
ト共重合させたものが挙げられる。
When a vinyl chloride graft copolymer obtained by graft copolymerizing vinyl chloride is used as the vinyl chloride resin, the vinyl chloride graft copolymer may be an alkyl acrylate and / or an alkyl methacrylate. Copolymer with polyfunctional monomer (hereinafter, referred to as
This is referred to as an acrylic copolymer. Is graft copolymerized with vinyl chloride. Specifically, there can be mentioned those obtained by graft copolymerizing 99 to 70 parts by weight of vinyl chloride with 1 to 30 parts by weight of an acrylic copolymer.

【0012】アクリル系共重合体におけるアルキルアク
リレートおよび/またはアルキルメタアクリレートとし
ては、その単独での二次転移点が−10℃以下であるこ
とが耐衝撃性の改良の点から有利であり、具体例として
は、例えば、エチルアクリレート、n−プロピルアクリ
レート、イソ−ブチルアクリレート、n−ブチルアクリ
レート、n−ヘキシルアクリレート、2−エチルヘキシ
ルアクリレート,n−オクチルアクリレート、n−デシ
ルアクリレート、n−オクチルメタアクリレート、n−
デシルメタアクリレート、n−ドデシルメタアクリレー
ト、ラウリルメタアクリレート等があげられる。この場
合アルキルアクリレートおよび/またはアルキルメタア
クリレートの使用量は、アクリル系共重合体中99〜7
0重量%が好適である。その量が99重量%を越えると
曲げ弾性率が低下し、70重量%未満では耐衝撃性が低
下するので好ましくない。
As the alkyl acrylate and / or alkyl methacrylate in the acrylic copolymer, it is advantageous that the secondary transition point of the alkyl acrylate alone is -10 ° C. or less from the viewpoint of improving impact resistance. Examples include, for example, ethyl acrylate, n-propyl acrylate, iso-butyl acrylate, n-butyl acrylate, n-hexyl acrylate, 2-ethylhexyl acrylate, n-octyl acrylate, n-decyl acrylate, n-octyl methacrylate, n-
Decyl methacrylate, n-dodecyl methacrylate, lauryl methacrylate and the like can be mentioned. In this case, the amount of the alkyl acrylate and / or alkyl methacrylate used is 99 to 7 in the acrylic copolymer.
0% by weight is preferred. If the amount exceeds 99% by weight, the flexural modulus decreases, and if it is less than 70% by weight, the impact resistance decreases, which is not preferable.

【0013】また、多官能性単量体とは、アルキルアク
リレートおよび/またはアルキルメタアクリレートと共
重合可能であり、共重合体中あるいはグラフト共重合体
中で架橋等に関与するモノマー類であって、例えばエチ
レングリコールジアクリレート、ジエチレングリコール
ジアクリレート、トリエチレングリコールジアクリレー
ト、エチレングリコールジメタアクリレート、ジエチレ
ングリコールジメタアクリレート、トリエチレングリコ
ールジメタアクリレート、1、3−プロピレングリコー
ルジメタアクリレート、1、3−ブチレングリコールジ
メタアクリレート、1、4−ブチレングリコールジメタ
アクリレート等の(ポリ)アルキレングリコールのアク
リレートもしくはメタアクリレート類、ジアリルフタレ
ート、ジアリルマレート、ジアリルフマレート、ジアリ
ルサクシネート等のポリアリル化合物類、ジビニルベン
ゼン、ブタジエン等が挙げられる。なお多官能性単量体
の使用量は、アクリル系共重合体中1〜30重量%が好
適であり、1重量%未満では曲げ弾性率が低下し、また
30重量%を越えると耐衝撃性が低下するので好ましく
ない。
The polyfunctional monomer is a monomer that can be copolymerized with an alkyl acrylate and / or an alkyl methacrylate and that participates in crosslinking or the like in a copolymer or a graft copolymer. For example, ethylene glycol diacrylate, diethylene glycol diacrylate, triethylene glycol diacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, 1,3-propylene glycol dimethacrylate, 1,3-butylene (Poly) alkylene glycol acrylates or methacrylates such as glycol dimethacrylate, 1,4-butylene glycol dimethacrylate, diallyl phthalate, diallyl male Over DOO, diallyl fumarate, polyallyl compounds such as diallyl succinate, divinyl benzene, butadiene and the like. The amount of the polyfunctional monomer to be used is preferably 1 to 30% by weight in the acrylic copolymer. If it is less than 1% by weight, the flexural modulus is lowered, and if it exceeds 30% by weight, the impact resistance is increased. Is undesirably reduced.

【0014】これらアクリル系共重合体を得る方法とし
ては、乳化重合、溶液重合、塊状重合等のいずれの重合
方法でも行うことができ、また乳化剤、分散剤、触媒等
も一般に公知のものを使用して重合体を得ることができ
る。例えば、乳化重合法によってアクリル系共重合体を
得る方法としては、ジャケット付重合反応機内に、純
水、アニオン系乳化剤、水溶性重合触媒を入れ、缶内の
空気を排除し、次いでアルキルアクリレートおよび/ま
たはアルキルメタアクリレートと多官能性単量体を装入
し、乳化後、缶内をジャケットにより加熱し、共重合反
応を行う。この共重合反応は発熱反応であり、必要に応
じてジャケットより内部温度を制御する。反応終了後、
未反応のモノマー類を缶外に除去し、アクリル系共重合
体を得る。また、必要に応じてアクリル系共重合体の粒
径調整剤、共重合反応を制御するための触媒の分解促進
剤等を添加しても良い。
As a method for obtaining these acrylic copolymers, any of polymerization methods such as emulsion polymerization, solution polymerization, bulk polymerization and the like can be used, and generally known emulsifiers, dispersants, catalysts and the like can be used. To obtain a polymer. For example, as a method for obtaining an acrylic copolymer by an emulsion polymerization method, pure water, an anionic emulsifier, and a water-soluble polymerization catalyst are put in a jacketed polymerization reactor, air in the can is eliminated, and then alkyl acrylate and After charging and / or emulsifying an alkyl methacrylate and a polyfunctional monomer, the inside of the can is heated by a jacket to carry out a copolymerization reaction. This copolymerization reaction is an exothermic reaction, and the internal temperature is controlled by a jacket as necessary. After the reaction,
Unreacted monomers are removed outside the can to obtain an acrylic copolymer. If necessary, a particle size adjuster for the acrylic copolymer, a catalyst decomposition accelerator for controlling the copolymerization reaction, and the like may be added.

【0015】次に、こうして得られたアクリル系共重合
体をグラフト共重合の幹ポリマーとして塩化ビニルをグ
ラフト共重合して塩化ビニル系グラフト共重合体を得る
ことができる。ここでグラフト共重合方法としては乳化
重合、懸濁重合、溶液重合、無溶媒重合等の重合方法が
挙げられる。例えば、懸濁重合法を行う場合、ジャケッ
ト付重合反応器内に、純水、ヒドロキシプロピルメチル
セルロースのような懸濁安定剤、ラジカル重合開始剤、
必要に応じて重合度低下剤を入れた後、アクリル系共重
合体を入れて懸濁する。ここでアクリル系共重合体と塩
化ビニルモノマーの総量に対する純水の使用量は1〜5
倍、好ましくは1〜3倍である。次いで缶内の空気を排
除した後、塩化ビニルを必要に応じその他のビニル化合
物と共に挿入する。その後、缶内をジャケットにより加
熱し、アクリル系共重合体を塩化ビニル類に溶解し、グ
ラフト共重合を開始させる。グラフト共重合は発熱反応
であり、必要に応じてジャケットより内部温度を制御す
る。反応終了後、未反応の塩化ビニル類を缶外に除去
し、スラリー状のグラフト共重合体を得る。スラリーは
常法に従い脱水乾燥されて塩化ビニル系グラフト共重合
体が得られる。また、重合反応機への装入方法は限定さ
れるものではなく、純水、懸濁安定剤、アクリル系共重
合体そして塩化ビニル等の装入原料のうち、アクリル系
共重合体を塩化ビニルに溶解して装入するという方法も
採用される。ここでのグラフト率は、該グラフト共重合
体のTHF(テトラヒドロフラン)不溶解重量%で表さ
れ、通常は5〜100重量%であり、一般には10重量
%程度のものが好ましく用いられている。
Then, vinyl chloride is graft-copolymerized using the acrylic copolymer thus obtained as a trunk polymer of the graft copolymer to obtain a vinyl chloride-based graft copolymer. Here, examples of the graft copolymerization method include polymerization methods such as emulsion polymerization, suspension polymerization, solution polymerization, and solventless polymerization. For example, when performing a suspension polymerization method, in a polymerization reactor with a jacket, pure water, a suspension stabilizer such as hydroxypropylmethylcellulose, a radical polymerization initiator,
After adding a polymerization degree reducing agent as needed, an acrylic copolymer is added and suspended. Here, the amount of pure water used is 1 to 5 with respect to the total amount of the acrylic copolymer and the vinyl chloride monomer.
And preferably 1 to 3 times. Then, after the air in the can is eliminated, vinyl chloride is inserted together with other vinyl compounds as required. Thereafter, the inside of the can is heated by a jacket, and the acrylic copolymer is dissolved in vinyl chlorides to start graft copolymerization. The graft copolymerization is an exothermic reaction, and the internal temperature is controlled by a jacket as necessary. After completion of the reaction, unreacted vinyl chlorides are removed outside the can to obtain a slurry-like graft copolymer. The slurry is dehydrated and dried according to a conventional method to obtain a vinyl chloride graft copolymer. The method of charging the polymerization reactor is not limited, and among the raw materials such as pure water, suspension stabilizer, acrylic copolymer, and vinyl chloride, the acrylic copolymer is converted to vinyl chloride. A method of dissolving and charging the solution is also adopted. The graft ratio here is represented by the weight percentage of THF (tetrahydrofuran) insoluble in the graft copolymer, usually 5 to 100% by weight, and generally about 10% by weight is preferably used.

【0016】このようにして得られる塩化ビニル系グラ
フト共重合体樹脂の重合度は、通常400〜1300程
度であり、好ましくは800〜1200、さらに好まし
くは900〜1100である。重合度が400未満であ
ると強度が不足し、また1300を越える場合は成形加
工性が低下する。
The degree of polymerization of the vinyl chloride graft copolymer resin thus obtained is usually about 400 to 1300, preferably 800 to 1200, and more preferably 900 to 1100. If the degree of polymerization is less than 400, the strength is insufficient, and if it exceeds 1300, the moldability deteriorates.

【0017】ここで塩化ビニル系グラフト共重合体とし
ては、例えば、市販されている大洋塩ビ(株)社製のT
A−I200、TA−I100、TA−E200、TA
−E230等を用いることができ、重合度はそれぞれ5
00、700、1000、1300である。
Here, examples of the vinyl chloride graft copolymer include commercially available T.V.
A-I200, TA-I100, TA-E200, TA
-E230 or the like can be used.
00, 700, 1000, and 1300.

【0018】本発明における塩化ビニル系樹脂として
は、上述の塩化ビニル単独重合体または塩化ビニル系グ
ラフト共重合体をそれぞれ単独で、あるいは塩化ビニル
単独重合体と塩化ビニル系グラフト共重合体を一般的な
公知の方法で混合して使用することができる。また、塩
化ビニル系グラフト共重合体は耐候性に優れるため、塩
化ビニル系グラフト共重合体の含有量が増加するに従
い、耐衝撃性と耐候性のバランスのレベルは高いものに
なる。
As the vinyl chloride resin in the present invention, the above-mentioned vinyl chloride homopolymer or vinyl chloride-based graft copolymer is used alone, or a vinyl chloride homopolymer and a vinyl chloride-based graft copolymer are generally used. It can be mixed and used by any known method. Further, since the vinyl chloride-based graft copolymer is excellent in weather resistance, as the content of the vinyl chloride-based graft copolymer increases, the level of balance between impact resistance and weather resistance becomes higher.

【0019】本発明における共重合体樹脂とは、α−メ
チルスチレン30〜90重量%、不飽和ニトリル10〜
50重量%、N−芳香族マレイミド0〜30重量%、お
よびこれらと共重合可能なビニル単量体を必要に応じて
共重合させて得られる共重合体であり、どのような方法
においても製造可能だが、例えば粉体として入手しやす
い乳化重合法、懸濁重合法が好ましく用いられる。ま
た、塊状重合法により得られた共重合体は、粉砕を必要
とする場合もあるが、いずれいにおても用いることがで
きる。
In the present invention, the copolymer resin is composed of 30 to 90% by weight of α-methylstyrene and 10 to 90% of unsaturated nitrile.
50% by weight, 0 to 30% by weight of N-aromatic maleimide, and a copolymer obtained by copolymerizing a vinyl monomer copolymerizable therewith as required, and can be produced by any method. Although possible, for example, an emulsion polymerization method and a suspension polymerization method which are easily available as a powder are preferably used. The copolymer obtained by the bulk polymerization method may require pulverization, but can be used in any case.

【0020】上述の共重合体樹脂においてはα−メチル
スチレンと不飽和ニトリルを必須成分とし、N−芳香族
マレイミドと共重合可能なビニル単量体は必要に応じて
共重合させればよい。これら共重合体樹脂における不飽
和ニトリルとしては、例えば、アクリロニトリル、メタ
クリロニトリルなどがあり、特にアクリロニトリルが好
ましく用いられ、アクリロニトリルを主体としてメタク
リロニトリルを含有した共重合体を使用しても構わな
い。また、N−芳香族マレイミドとしては、N−フェニ
ルマレイミド、N−メチルフェニルマレイミド、N−ヒ
ドロキシフェニルマレイミド、N−メトキシフェニルマ
レイミドなどがあり、これらのうち単独であるいは2種
以上を併用で使用しても構わない。
In the above copolymer resin, α-methylstyrene and unsaturated nitrile are essential components, and a vinyl monomer copolymerizable with N-aromatic maleimide may be copolymerized as required. Examples of the unsaturated nitrile in these copolymer resins include, for example, acrylonitrile and methacrylonitrile, and acrylonitrile is particularly preferably used, and a copolymer containing methacrylonitrile mainly with acrylonitrile may be used. . Examples of the N-aromatic maleimide include N-phenylmaleimide, N-methylphenylmaleimide, N-hydroxyphenylmaleimide, N-methoxyphenylmaleimide, and the like, either alone or in combination of two or more. It does not matter.

【0021】ここで共重合可能なビニル単量体とは、本
発明の効果を損なわない単量体であれば制限はないが、
スチレン、パラメチルスチレン、p−t−ブチルスチレ
ンなどの芳香族化合物、メタクリル酸メチル、アクリル
酸メチルなどのメタアクリル酸またはアクリル酸のアル
キルエステル、メタクリロニトリルなどの不飽和ニトリ
ル、マレイミド、N−マレイミド、N−t−ブチルマレ
イミド等が例示され、これら単独であるいは2種以上を
併用で使用しても構わない。
The copolymerizable vinyl monomer is not limited as long as it does not impair the effects of the present invention.
Aromatic compounds such as styrene, paramethylstyrene and pt-butylstyrene; methacrylic acid such as methyl methacrylate and alkyl acrylate; alkyl esters of acrylic acid; unsaturated nitriles such as methacrylonitrile; maleimide; Maleimide, Nt-butylmaleimide and the like are exemplified, and these may be used alone or in combination of two or more.

【0022】このようなα−メチルスチレン、不飽和ニ
トリルおよびN−芳香族マレイミドと共重合可能なビニ
ル単量体を必要に応じて共重合させて得られる共重合体
樹脂は、例えば、宇部サイコン(株)社製のS700N
(α−メチルスチレン75重量%、不飽和ニトリル25
重量%)、S802N(α−メチルスチレン70重量
%、不飽和ニトリル20重量%、N−芳香族マレイミド
10重量%)、S803N(α−メチルスチレン35重
量%、不飽和ニトリル25重量%、N−芳香族マレイミ
ド20重量%、スチレン20重量%)等が挙げられ、市
場で容易に入手可能である。
The copolymer resin obtained by copolymerizing a vinyl monomer copolymerizable with α-methylstyrene, unsaturated nitrile and N-aromatic maleimide as required is, for example, Ube Sicon S700N manufactured by Corporation
(75% by weight of α-methylstyrene, 25 parts of unsaturated nitrile
Wt%), S802N (α-methylstyrene 70 wt%, unsaturated nitrile 20 wt%, N-aromatic maleimide 10 wt%), S803N (α-methylstyrene 35 wt%, unsaturated nitrile 25 wt%, N- Aromatic maleimide 20% by weight, styrene 20% by weight) and the like, and are readily available on the market.

【0023】本発明において、塩素化ポリエチレン樹脂
とは、塩素含有率が25〜45重量%程度のものであ
り、ポリエチレンを塩素化して得られる樹脂である。こ
こで塩素含有率が25重量%より低い場合では、塩化ビ
ニル系樹脂との相溶性が低くなり、塩素含有率が45重
量%より高い場合では、耐熱性が低下する欠点がある。
上記塩素含有率を有する塩素化ポリエチレンは塩化ビニ
ル系樹脂との相溶性に優れ、塩化ビニル系樹脂の欠点で
ある耐衝撃を向上させるためには有効であり、例えば、
昭和電工(株)社製のエラスレンEXP−771(塩素
含有率36wt%、比重1.16、ブロッキング指数1
wt%以下)等が市場で入手可能である。
In the present invention, the chlorinated polyethylene resin has a chlorine content of about 25 to 45% by weight and is a resin obtained by chlorinating polyethylene. Here, when the chlorine content is lower than 25% by weight, the compatibility with the vinyl chloride resin becomes low, and when the chlorine content is higher than 45% by weight, there is a disadvantage that the heat resistance decreases.
Chlorinated polyethylene having the above-mentioned chlorine content has excellent compatibility with vinyl chloride resins, and is effective for improving the impact resistance, which is a disadvantage of vinyl chloride resins.
Eraslen EXP-771 manufactured by Showa Denko KK (chlorine content 36 wt%, specific gravity 1.16, blocking index 1)
wt% or less) is commercially available.

【0024】この塩素化ポリエチレンの添加量は、使用
する塩化ビニル系樹脂の種類に応じて調整可能であり、
耐衝撃性において必要とする衝撃強度レベルに応じて変
えることができる。通常、塩化ビニル単独重合体あるい
は塩化ビニル単独重合体と塩化ビニル系グラフト共重合
体との混合物を塩化ビニル系樹脂として使用する場合に
おいては、塩化ビニル系樹脂100重量部に対して、塩
素化ポリエチレン樹脂15〜80重量部の範囲で添加す
ればよい。また、塩化ビニル系グラフト共重合体のみを
塩化ビニル系樹脂として使用する場合には、塩化ビニル
系樹脂100重量部に対して、塩素化ポリエチレン樹脂
15〜40重量部の範囲で添加すればよい。この場合に
おいては20kgf・cm・cm以上のアイゾット衝撃
強度を確保できる等、塩化ビニル単独重合体を塩化ビニ
ル系樹脂として用いた場合に比べて、耐衝撃性において
有利な結果が得られる。
The amount of the chlorinated polyethylene can be adjusted according to the type of the vinyl chloride resin used.
The impact resistance can be varied according to the required impact strength level. Usually, when a vinyl chloride homopolymer or a mixture of a vinyl chloride homopolymer and a vinyl chloride-based graft copolymer is used as the vinyl chloride-based resin, 100 parts by weight of the vinyl chloride-based resin is added to the chlorinated polyethylene. The resin may be added in the range of 15 to 80 parts by weight. When only the vinyl chloride graft copolymer is used as the vinyl chloride resin, the chlorinated polyethylene resin may be added in the range of 15 to 40 parts by weight based on 100 parts by weight of the vinyl chloride resin. In this case, an advantageous result in terms of impact resistance can be obtained as compared with a case where a vinyl chloride homopolymer is used as a vinyl chloride resin, such as an Izod impact strength of 20 kgf · cm · cm or more.

【0025】本発明における塩化ビニル系樹脂組成物を
得る方法としては、上述の塩化ビニル系樹脂、共重合体
樹脂および塩素化ポリエチレンの他に、一般的に用いら
れている安定剤、滑剤、可塑剤、加工助剤、酸化防止
剤、UV吸収剤、顔料および充填剤などを、さらには必
要に応じてその他添加剤を加えて、例えば、ヘンシェル
ミキサー、バンバリーミキサー、リボンブレンダー等の
攪拌機により攪拌・配合を行い、得られた配合粉を、例
えばコニカル二軸押出機、パラレル二軸押出機、単軸押
出機、コニーダー型混練機、ロール混練機等の混練機に
より造粒し、ペレットとして得ることができる。これら
の配合粉あるいはペレットを用いてコニカル二軸押出
機、パラレル二軸押出機、単軸押出機等の押出機により
溶融成形加工することにより成形物として得ることがで
きる。
The method for obtaining the vinyl chloride resin composition according to the present invention includes, in addition to the above-mentioned vinyl chloride resin, copolymer resin and chlorinated polyethylene, generally used stabilizers, lubricants and plastics. Agents, processing aids, antioxidants, UV absorbers, pigments and fillers, and, if necessary, other additives, for example, stirring with a stirrer such as a Henschel mixer, a Banbury mixer, and a ribbon blender. After compounding, the obtained compounded powder is granulated by a kneader such as a conical twin-screw extruder, a parallel twin-screw extruder, a single-screw extruder, a kneader-type kneader, a roll kneader or the like to obtain pellets. Can be. A molded product can be obtained by subjecting these compounded powders or pellets to melt molding with an extruder such as a conical twin-screw extruder, a parallel twin-screw extruder, or a single-screw extruder.

【0026】ここでいう安定剤としては、公知のものの
何れでもよく、無機酸塩系、金属石鹸系、有機金属化合
物系、有機化合物系などが用いられる。
The stabilizer used herein may be any of known ones, and examples thereof include inorganic acid salts, metal soaps, organometallic compounds, and organic compounds.

【0027】滑剤としては、炭化水素系、脂肪酸系、エ
ステル系、金属石鹸系、脂肪アルコール系、多価アルコ
ール系など、あるいは混合系の何れも使用される。
As the lubricant, any of a hydrocarbon type, a fatty acid type, an ester type, a metal soap type, a fatty alcohol type, a polyhydric alcohol type and the like, or a mixed type may be used.

【0028】可塑剤としては、フタル酸系、エポキシ
系、ポリエステル系、塩素化パラフィン系などが使用さ
れる。
As the plasticizer, phthalic acid type, epoxy type, polyester type, chlorinated paraffin type and the like are used.

【0029】加工助剤としては、公知のものの何れでも
よく、例えば、ポリメチルメタアクリレートが挙げられ
る。
The processing aid may be any of known ones, for example, polymethyl methacrylate.

【0030】顔料としては、公知のものの何れでもよ
く、例えば、酸化チタン、ベンガラ、黄鉛、カーボンブ
ラック等が挙げられ、中でも酸化チタンが主に用いられ
る。
The pigment may be any of known pigments, for example, titanium oxide, red iron oxide, graphite, carbon black and the like. Among them, titanium oxide is mainly used.

【0031】さらに充填剤としては、公知のものの何れ
でもよく、例えば、炭酸カルシウム、クレー、含水珪
酸、無水珪酸、珪酸カルシウム、珪酸アルミニウムアス
ベスト粉、酸化アンチモン、タルク、三水和アルミニウ
ム、水和硼酸亜鉛、マグネシャ、重曹、硝酸加里、水酸
化カルシウム、雲母、合成フッ素雲母等が挙げられる。
中でも、炭酸カルシウムが好ましく用いられる。
The filler may be any of known ones, for example, calcium carbonate, clay, hydrous silicic acid, anhydrous silicic acid, calcium silicate, aluminum silicate asbestos powder, antimony oxide, talc, aluminum trihydrate, boric acid hydrate Zinc, magnesia, baking soda, nitric acid potassium, calcium hydroxide, mica, synthetic fluorine mica and the like.
Among them, calcium carbonate is preferably used.

【0032】以上、一般に用いられる添加剤について
は、市場で容易に入手可能であり、よく用いられている
ものばかりであり、必要に応じて使用、あるいは併用す
ることができる。
As described above, the commonly used additives are easily available in the market, are often used, and can be used or used in combination as needed.

【0033】このようにして得られた塩化ビニル系樹脂
およびその成形物は、動的粘弾性において1Hzで測定
したtanδの主分散ピ−ク値(以下、単に、ガラス転
移温度と記す。)が向上し、一般耐熱物性であるビカッ
ト軟化点および荷重−たわみ温度が向上し、実用性のあ
る加熱収縮率が良好であり、かつアイゾット衝撃強度が
向上し、耐熱性および耐衝撃性が優れ、外観が均一であ
り、目視で塊の見られない塩化ビニル系樹脂組成物およ
び成形物を得ることができる。
The vinyl chloride resin thus obtained and the molded product thereof have a tan δ main dispersion peak value (hereinafter simply referred to as a glass transition temperature) measured at 1 Hz in dynamic viscoelasticity. Improved heat resistance and Vicat softening point and load-deflection temperature, which are general heat resistance properties, good heat shrinkage for practical use and good Izod impact strength, excellent heat resistance and impact resistance, appearance Can be obtained, and a vinyl chloride resin composition and a molded product in which no lump is visually observed can be obtained.

【0034】ここで言うガラス転移温度は、一般的な硬
質塩化ビニル系樹脂が78〜82℃に対して、90℃以
上であり、耐熱性の向上が顕著である。また、ビカット
軟化点および荷重−たわみ温度は、一般硬質塩化ビニル
系樹脂では、それぞれ88℃付近、69℃付近に対し
て、それぞれ93℃以上、70℃以上であり、耐熱性の
向上が顕著である。加熱収縮率については、一般的な硬
質塩化ビニル系樹脂が縦方向で約3.0%、横方向で約
1.0%であるのに対して、縦方向は1.6%以下、横
方向は0.6%以下であり、耐熱性の向上が見られる。
The glass transition temperature mentioned here is 90 ° C. or higher, compared to 78-82 ° C. for a general hard vinyl chloride resin, and the heat resistance is remarkably improved. The Vicat softening point and the load-deflection temperature are 93 ° C. or higher and 70 ° C. or higher, respectively, for a general hard vinyl chloride resin at around 88 ° C. and around 69 ° C., respectively. is there. Regarding the heat shrinkage, the general hard vinyl chloride resin is about 3.0% in the vertical direction and about 1.0% in the horizontal direction, whereas it is 1.6% or less in the vertical direction and the horizontal direction. Is 0.6% or less, and an improvement in heat resistance is observed.

【0035】[0035]

【実施例】以下、実施例により本発明を更に具体的に説
明する。
EXAMPLES The present invention will be described more specifically with reference to the following examples.

【0036】この実施例は単なる例示であって本発明は
これらに限定されるものではない。尚、実施例における
測定方法は下記の通りである。
This embodiment is merely illustrative, and the present invention is not limited to these embodiments. In addition, the measuring method in an Example is as follows.

【0037】耐熱性の指標として、ガラス転移温度、ビ
カット軟化点、荷重−たわみ温度(HDT)、加熱収縮
率を以下のように測定した。
As an index of heat resistance, a glass transition temperature, a Vicat softening point, a load-deflection temperature (HDT) and a heat shrinkage were measured as follows.

【0038】ガラス転移温度の測定については、表1・
表2のペレット状コンパウンドを日精樹脂工業(株)製
F−120射出成形機にて横巾60mm、縦巾90m
m、厚み3mmの平板状に成形し、さらに(株)神藤金
属工業所製のASFA150型式圧縮成形機にてプレス
温度180℃でプレス加工し、横巾約40mm、縦巾約
10mm、厚み約1mmのサンプル片を切り出して試験
片を作成した。測定はセイコー電子工業(株)製(Dy
namic Mechanical Spectrom
eter DMS100)にて周波数1Hz、昇温速度
2℃/分の条件において行い、tanδの主分散ピーク
値をガラス転移温度と決定した。
For the measurement of the glass transition temperature, see Table 1.
The pellet compound of Table 2 was 60 mm in width and 90 m in height using an F-120 injection molding machine manufactured by Nissei Plastic Industry Co., Ltd.
m, a flat plate having a thickness of 3 mm, and further pressed at a press temperature of 180 ° C. with an ASFA150 type compression molding machine manufactured by Shinto Metal Industry Co., Ltd. to obtain a width of about 40 mm, a length of about 10 mm, and a thickness of about 1 mm. Was cut out to prepare a test piece. The measurement was made by Seiko Denshi Kogyo Co., Ltd. (Dy
natural Mechanical Spectrom
The main dispersion peak value of tan δ was determined as the glass transition temperature by using an ETER DMS 100) at a frequency of 1 Hz and a heating rate of 2 ° C./min.

【0039】ビカット軟化点については、表1・表2の
ペレット状コンパウンドを日精樹脂工業(株)製FS−
120射出成形機にて横巾60mm、縦巾90mm、厚
み3mmの平板状に成形したものより試験片を作成し
た。測定は、JIS−K7206に準ずる方法にて行っ
た。
With respect to the Vicat softening point, the pelletized compounds shown in Tables 1 and 2 were obtained by using FS-manufactured by Nissei Plastic Industry Co., Ltd.
A test piece was prepared from a flat plate having a width of 60 mm, a width of 90 mm and a thickness of 3 mm using a 120 injection molding machine. The measurement was performed by a method according to JIS-K7206.

【0040】荷重−たわみ温度(HDT)については、
表1・表2のペレット状コンパウンドよりロール混練機
および上述のプレス加工機により3mmシートを作成
し、サンプルを切り出して試験片とした。測定は、JI
S−K7207に準ずる方法にて行った。
With respect to the load-deflection temperature (HDT),
A 3 mm sheet was prepared from the pelletized compounds shown in Tables 1 and 2 using a roll kneader and the above-mentioned press machine, and a sample was cut out to obtain a test piece. The measurement is based on JI
The measurement was performed by a method according to S-K7207.

【0041】加熱収縮率については、表1、表2のペレ
ット状コンパウンドを日精樹脂工業(株)製FS−12
0射出成形機にて横巾60mm、縦巾90mm、厚み3
mmの平板状に成形した射出成形品を試験片とした。試
験片は、(株)二葉科学社製の循環式熱風乾燥機DG
(DFR)−100により、温度を90℃設定で、加熱
時間3時間の条件下に入れて、加熱前後での縦および横
の長さを測定し、加熱収縮率(%)を算出した。
With respect to the heat shrinkage, the pelletized compounds shown in Tables 1 and 2 were obtained by using FS-12 manufactured by Nissei Plastics Industry Co., Ltd.
0 Injection molding machine width 60 mm, height 90 mm, thickness 3
An injection-molded product molded into a flat plate of mm was used as a test piece. The test piece was a circulating hot air dryer DG manufactured by Futaba Science Co., Ltd.
According to (DFR) -100, the temperature was set to 90 ° C., the heating time was set to 3 hours, and the vertical and horizontal lengths before and after heating were measured to calculate the heat shrinkage (%).

【0042】耐衝撃性としてアイゾット衝撃強度につい
ては、表1・表2のペレット状コンパウンドよりロール
混練機および上述のプレス加工機により6.4mmシー
トを作成し、サンプルを切り出して試験片とした。測定
は、JIS−K6740に準ずる方法にて行った。
With respect to the Izod impact strength as impact resistance, a 6.4 mm sheet was prepared from the pelletized compounds shown in Tables 1 and 2 by a roll kneader and the above-mentioned press working machine, and a sample was cut out to obtain a test piece. The measurement was performed by a method according to JIS-K6740.

【0043】さらに、実際に成形したサイディング材の
耐熱性の評価を冷熱繰り返し試験にて評価した。
Further, the heat resistance of the actually formed siding material was evaluated by a repeated cooling / heating test.

【0044】冷熱繰り返し試験については、所定の材料
を長さ2500mm、巾340mmのサイディング材に
押出成形し、評価サンプルとして長さ100mm、巾3
40mmに切断したものを使用した。また、比較サンプ
ルとして輸入サイディング材も含めて耐熱性の評価を行
った。測定は、(株)二葉科学社製の循環式熱風乾燥機
DG(DFR)−100により、サンプルを加熱温度を
70℃設定で、加熱時間30分、冷却時間60分のサイ
クルを5回繰り返し行った。冷熱繰り返し試験の前後の
サンプルの押出方向の長さ変化を測定した。また、成形
品の変形度合いを反り状態から確認を行った。
In the cooling / heating repetition test, a predetermined material was extruded into a siding material having a length of 2500 mm and a width of 340 mm.
A piece cut to 40 mm was used. In addition, the heat resistance was evaluated including the imported siding material as a comparative sample. The measurement was repeated five times using a circulating hot air dryer DG (DFR) -100 manufactured by Futaba Kagaku Co., Ltd. at a heating temperature of 70 ° C. and a heating time of 30 minutes and a cooling time of 60 minutes. Was. The change in the length in the extrusion direction of the sample before and after the cooling and heating cycle test was measured. Further, the degree of deformation of the molded product was confirmed from the warped state.

【0045】実施例1 塩化ビニル系樹脂として、平均重合度700の塩化ビニ
ル単独重合体(大洋塩ビ(株)社製、TH−700)1
00重量部と、鉛系複合安定剤(鉛市化学工業(株)社
製、N−1009)4.5重量部、滑剤として特殊多価
アルコール脂肪酸エステル(理研ビタミン(株)社製、
リケスターSL−02)0.9重量部、加工助剤として
PMMA(三菱レイヨン(株)社製、メタブレンP−5
50A)を2重量部、充填剤として炭酸カルシウムを5
重量部などの添加剤と、共重合体樹脂として、α−メチ
ルスチレン75重量%、不飽和ニトリル25重量%を重
合させて得られる共重合体樹脂(宇部サイコン(株)社
製、S700N)を57重量部、塩素含有率36wt%
の塩素化ポリエチレン(昭和電工(株)社製、エラスレ
ンEXP−771)を30重量部添加したものを三井三
池株式会社製ヘンシェルミキサーにて混合し、得られた
組成物を池貝鉄工(株)社製、口径30mm2軸押出機
(PCM−30)にて、シリンダーおよびダイス設定温
度を140℃〜150℃で造粒してペレット状とした。
Example 1 A vinyl chloride homopolymer (TH-700, manufactured by Taiyo Vinyl Co., Ltd.) having an average degree of polymerization of 700 was used as a vinyl chloride resin.
00 parts by weight, 4.5 parts by weight of a lead-based composite stabilizer (N-1009, manufactured by Lead City Chemical Industry Co., Ltd.), and a special polyhydric alcohol fatty acid ester (manufactured by Riken Vitamin Co., Ltd.) as a lubricant.
RIQUESTER SL-02) 0.9 parts by weight, PMMA (manufactured by Mitsubishi Rayon Co., Ltd., Metablen P-5) as a processing aid
50A) in 2 parts by weight, and calcium carbonate as a filler in 5 parts
Parts by weight of an additive and a copolymer resin obtained by polymerizing 75% by weight of α-methylstyrene and 25% by weight of unsaturated nitrile (S700N, manufactured by Ube Sycon Co., Ltd.) as a copolymer resin. 57 parts by weight, chlorine content 36 wt%
Of chlorinated polyethylene (Eraslen EXP-771 manufactured by Showa Denko KK) was added to the mixture and mixed with a Henschel mixer manufactured by Mitsui Miike Co., Ltd. And a pellet having a cylinder and a die set temperature of 140 ° C. to 150 ° C. by a twin screw extruder (PCM-30) having a diameter of 30 mm.

【0046】この得られた造粒ペレットを日精樹脂工業
(株)製FS−120射出成形機にて、シリンダー設定
温度を165℃〜180℃、射出圧力を70〜80kg
f/cm2で平板状に成形し、この平板成形品を上述の
とおりに調整し、各物性について測定を行った。結果を
表1に示す。
The obtained granulated pellets were subjected to a cylinder setting temperature of 165 ° C. to 180 ° C. and an injection pressure of 70 to 80 kg using an FS-120 injection molding machine manufactured by Nissei Plastics Industry Co., Ltd.
The sheet was formed into a flat plate at f / cm 2, and the flat plate was adjusted as described above, and each physical property was measured. Table 1 shows the results.

【0047】尚、実際に成形したサイディング材を冷熱
繰り返し試験を行い、その成形品の変形度合いを測定し
たところ、加熱温度70℃において変形率は輸入サイデ
ィング材の0.221%に対して0.017%と低かっ
た。また、成形品の反り状態は、輸入サイディング材で
は、元の形状が維持されないほど変形が大きいのに対し
て、変形度はごくわずかに認められただけで、耐熱性に
おいて良好な結果を示した。
The siding material actually formed was subjected to a cold / hot repetition test to measure the degree of deformation of the formed product. At a heating temperature of 70 ° C., the deformation ratio was 0.2% with respect to 0.221% of the imported siding material. It was as low as 017%. In addition, the warp state of the molded product was such that the imported siding material had a large deformation so that the original shape could not be maintained, but only a slight degree of deformation was recognized, indicating a favorable result in heat resistance. .

【0048】実施例2 塩素含有率36wt%の塩素化ポリエチレン(昭和電工
(株)社製、エラスレンEXP−771)を15重量部
用いた他は実施例1と同様にして成形し、調整し、各物
性を測定した。結果を表1に示す。
Example 2 A chlorinated polyethylene having a chlorine content of 36 wt% (Eraslen EXP-771, manufactured by Showa Denko KK) was molded and adjusted in the same manner as in Example 1 except that 15 parts by weight was used. Each physical property was measured. Table 1 shows the results.

【0049】実施例3 共重合体樹脂として、α−メチルスチレン35重量%、
不飽和ニトリル25重量%、N−芳香族マレイミド20
重量%、スチレン20重量%を重合して得られる共重合
体(宇部サイコン(株)社製、S803N)を57重量
部、塩素含有率36wt%の塩素化ポリエチレン(昭和
電工(株)社製、エラスレンEXP−771)を80重
量部用いた他は実施例1と同様にして成形し、調整し、
各物性を測定した。結果を表1に示す。
Example 3 35% by weight of α-methylstyrene was used as a copolymer resin.
25% by weight of unsaturated nitrile, N-aromatic maleimide 20
A copolymer obtained by polymerizing 20% by weight of styrene and 20% by weight of styrene (manufactured by Ube Sicon Co., Ltd., S803N) is 57 parts by weight, and a chlorinated polyethylene having a chlorine content of 36% by weight (manufactured by Showa Denko KK). Molded and adjusted in the same manner as in Example 1 except that 80 parts by weight of Eraslen EXP-771) was used.
Each physical property was measured. Table 1 shows the results.

【0050】実施例4 共重合体樹脂として、α−メチルスチレン75重量%、
不飽和ニトリル25重量%を重合させて得られる共重合
体(宇部サイコン(株)社製、S700N)を21重量
部、塩素含有率36wt%の塩素化ポリエチレン(昭和
電工(株)社製、エラスレンEXP−771)を50重
量部用いた他は実施例1と同様にして成形し、調整し、
各物性を測定した。結果を表1に示す。
Example 4 75% by weight of α-methylstyrene was used as a copolymer resin.
21 parts by weight of a copolymer obtained by polymerizing 25% by weight of unsaturated nitrile (manufactured by Ube Saikon Co., Ltd., S700N), chlorinated polyethylene having a chlorine content of 36% by weight (manufactured by Showa Denko KK, Eraslen) Molding and adjusting in the same manner as in Example 1 except that 50 parts by weight of EXP-771) was used.
Each physical property was measured. Table 1 shows the results.

【0051】実施例5 共重合体樹脂として、α−メチルスチレン70重量%、
不飽和ニトリル20重量%、N−芳香族マレイミド10
重量%を重合して得られる共重合体(宇部サイコン
(株)社製、S802N)を21重量部用いた他は実施
例1と同様にして成形し、調整し、各物性を測定した。
結果を表1に示す。
Example 5 70% by weight of α-methylstyrene was used as a copolymer resin.
20% by weight of unsaturated nitrile, N-aromatic maleimide 10
Except for using 21 parts by weight of a copolymer (S802N, manufactured by Ube Sicon Co., Ltd.) obtained by polymerizing by weight%, molding was performed and adjusted in the same manner as in Example 1, and each physical property was measured.
Table 1 shows the results.

【0052】実施例6 共重合体樹脂として、α−メチルスチレン75重量%、
不飽和ニトリル25重量%を重合させて得られる共重合
体(宇部サイコン(株)社製、S700N)を21重量
部、塩素含有率36wt%の塩素化ポリエチレン(昭和
電工(株)社製、エラスレンEXP−771)を15重
量部用いた他は実施例1と同様にして成形し、調整し、
各物性を測定した。結果を表1に示す。
Example 6 As a copolymer resin, 75% by weight of α-methylstyrene was used.
21 parts by weight of a copolymer obtained by polymerizing 25% by weight of unsaturated nitrile (manufactured by Ube Saikon Co., Ltd., S700N), chlorinated polyethylene having a chlorine content of 36% by weight (manufactured by Showa Denko KK, Eraslen) Molding and adjusting in the same manner as in Example 1 except that EXP-771) was used in an amount of 15 parts by weight.
Each physical property was measured. Table 1 shows the results.

【0053】実施例7 塩化ビニル系樹脂として、平均重合度700の塩化ビニ
ル系グラフト共重合体(大洋塩ビ(株)社製、TA−I
100)100重量部、塩素含有率36wt%の塩素
化ポリエチレン(昭和電工(株)社製、エラスレンEXP
−771)を40重量部用いた他は実施例1と同様にし
て成形し、調整し、各物性を測定した。結果を表1に示
す。
Example 7 As a vinyl chloride resin, a vinyl chloride graft copolymer having an average degree of polymerization of 700 (TA-I, manufactured by Taiyo PVC Co., Ltd.)
100) 100 parts by weight of chlorinated polyethylene having a chlorine content of 36 wt% (Eraslen EXP manufactured by Showa Denko KK)
Molding and adjustment were performed in the same manner as in Example 1 except that 40 parts by weight of -771) was used, and each physical property was measured. Table 1 shows the results.

【0054】尚、サイディング材の成形品での加熱変形
度合いは、加熱温度70℃において変形率は輸入サイデ
ィング材の0.221%に対して0.010%と低かっ
た。また、成形品の反り状態は、輸入サイディング材で
は、元の形状が維持されないほど変形が大きいのに対し
て、変形度はほとんど認められず、耐熱性において良好
な結果を示した。
The degree of heat deformation of the molded product of the siding material was as low as 0.010% at the heating temperature of 70 ° C. compared to 0.221% of the imported siding material. In the warped state of the molded product, in the imported siding material, the deformation was so large that the original shape was not maintained, but the degree of deformation was hardly recognized, and good results were obtained in heat resistance.

【0055】実施例8 共重合体樹脂として、α−メチルスチレン35重量%、
不飽和ニトリル25重量%、N−芳香族マレイミド20
重量%、スチレン20重量%を重合して得られる共重合
体(宇部サイコン(株)社製、S803N)を57重量
部、塩素含有率36wt%の塩素化ポリエチレン(昭和
電工(株)社製、エラスレンEXP−771)を15重
量部用いた他は実施例7同様にして成形し、調整し、各
物性を測定した。結果を表1に示す。
Example 8 35% by weight of α-methylstyrene was used as a copolymer resin.
25% by weight of unsaturated nitrile, N-aromatic maleimide 20
A copolymer obtained by polymerizing 20% by weight of styrene and 20% by weight of styrene (manufactured by Ube Sicon Co., Ltd., S803N) is 57 parts by weight, and a chlorinated polyethylene having a chlorine content of 36% by weight (manufactured by Showa Denko KK). Molding and adjustment were performed in the same manner as in Example 7 except that 15 parts by weight of Eraslen EXP-771) was used, and each physical property was measured. Table 1 shows the results.

【0056】実施例9 共重合体樹脂としてα−メチルスチレン75重量%、不
飽和ニトリル25重量%を重合させて得られる共重合体
(宇部サイコン(株)社製、S700N)を29重量
部、塩素含有率36wt%の塩素化ポリエチレン(昭和
電工(株)社製、エラスレンEXP−771)を20重
量部用いた他は実施例7と同様にして成形し、調整し、
各物性を測定した。結果を表1に示す。
Example 9 29 parts by weight of a copolymer obtained by polymerizing 75% by weight of α-methylstyrene and 25% by weight of unsaturated nitrile (S700N, manufactured by Ube Sicon Co., Ltd.) as a copolymer resin, Molding and adjustment were performed in the same manner as in Example 7 except that 20 parts by weight of chlorinated polyethylene having a chlorine content of 36 wt% (Eraslen EXP-771, manufactured by Showa Denko KK) was used.
Each physical property was measured. Table 1 shows the results.

【0057】実施例10 共重合体樹脂として、α−メチルスチレン70重量%、
不飽和ニトリル20重量%、N−芳香族マレイミド10
重量%を重合して得られる共重合体(宇部サイコン
(株)社製、S802N)を29重量部、塩素含有率3
6wt%の塩素化ポリエチレン(昭和電工(株)社製、
エラスレンEXP−771)を30重量部用いた他は実
施例7と同様にして成形し、調整し、各物性を測定し
た。結果を表1に示す。
Example 10 As a copolymer resin, 70% by weight of α-methylstyrene was used.
20% by weight of unsaturated nitrile, N-aromatic maleimide 10
29% by weight of a copolymer (S802N, manufactured by Ube Sicon Co., Ltd.) obtained by polymerizing 3% by weight of a copolymer containing 3% by weight of chlorine.
6 wt% chlorinated polyethylene (manufactured by Showa Denko KK)
Molding and adjustment were performed in the same manner as in Example 7 except that 30 parts by weight of Eraslen EXP-771) was used, and each physical property was measured. Table 1 shows the results.

【0058】実施例11 共重合体樹脂としてα−メチルスチレン75重量%、不
飽和ニトリル25重量%を重合させて得られる共重合体
(宇部サイコン(株)社製、S700N)を29重量部
用いた他は実施例7と同様にして成形し、調整し、各物
性を測定した。結果を表1に示す。
Example 11 29 parts by weight of a copolymer obtained by polymerizing 75% by weight of α-methylstyrene and 25% by weight of unsaturated nitrile (S700N, manufactured by Ube Sicon Co., Ltd.) as a copolymer resin Except for the above, molding and adjustment were performed in the same manner as in Example 7, and each physical property was measured. Table 1 shows the results.

【0059】比較例1 共重合体樹脂と塩素化ポリエチレンを用いない他は実施
例1と同様にして成形し、調整し、各物性を測定した。
ガラス転移温度が80.1℃、ビカット軟化点が86.
7℃、HDTが66.5℃と低く、加熱変形率が縦方向
2.9%、横方向0.9%と大きく、耐熱性が不十分で
あった。アイゾット衝撃強度も4.3kgf・cm/c
mと低く耐衝撃性も不十分であった。結果を表2に示
す。尚、サイディング材の成形品での加熱変形度合い
は、加熱温度70℃において変形率は輸入サイディング
材の0.221%に対して0.039%と低かったが、
実施例1の変化率0.017%に対しては大きかった。
また、成形品の反り状態は、輸入サイディング材と比較
して、元の形状が維持されないほど変形は大きくはなか
ったが、若干の反りが見られ、耐熱性において不十分な
結果を示した。
Comparative Example 1 Molding and adjustment were conducted in the same manner as in Example 1 except that the copolymer resin and the chlorinated polyethylene were not used, and each physical property was measured.
Glass transition temperature: 80.1 ° C, Vicat softening point: 86.
7 ° C., HDT was as low as 66.5 ° C., and the heat deformation ratio was as large as 2.9% in the vertical direction and 0.9% in the horizontal direction, and heat resistance was insufficient. Izod impact strength is 4.3kgf ・ cm / c
m and the impact resistance was insufficient. Table 2 shows the results. The degree of heat deformation of the molded product of the siding material was as low as 0.039% at the heating temperature of 70 ° C. as compared with 0.221% of the imported siding material.
It was large for the rate of change of Example 1 of 0.017%.
In addition, the warped state of the molded article was not so large that the original shape was not maintained as compared with the imported siding material, but a slight warp was observed, and the heat resistance was insufficient.

【0060】比較例2 共重合体樹脂としてα−メチルスチレン75重量%、不
飽和ニトリル25重量%を重合させて得られる共重合体
(宇部サイコン(株)社製、S700N)を10重量
部、塩素含有率36wt%の塩素化ポリエチレン(昭和
電工(株)社製、エラスレンEXP−771)を100
重量部用いた他は実施例1と同様にして成形し、調整
し、各物性を測定した。耐熱性においては、ガラス転移
温度が85.7℃、ビカット軟化点が91.0℃と低
く、加熱変形率が縦方向2.3%、横方向0.8と大き
く、耐熱性が不十分であった。結果を表2に示す。
Comparative Example 2 10 parts by weight of a copolymer obtained by polymerizing 75% by weight of α-methylstyrene and 25% by weight of unsaturated nitrile (S700N, manufactured by Ube Sicon Co., Ltd.) as a copolymer resin, Chlorinated polyethylene having a chlorine content of 36 wt% (Eraslen EXP-771 manufactured by Showa Denko KK)
Except for using parts by weight, molding and adjustment were performed in the same manner as in Example 1, and each physical property was measured. As for heat resistance, the glass transition temperature is 85.7 ° C., the Vicat softening point is as low as 91.0 ° C., and the heat deformation rate is as large as 2.3% in the vertical direction and 0.8 in the horizontal direction, and the heat resistance is insufficient. there were. Table 2 shows the results.

【0061】比較例3 塩素含有率36wt%の塩素化ポリエチレン(昭和電工
(株)社製、エラスレンEXP−771)を6重量部添
加した他は実施例1と同様にして成形し、調整し、各物
性を測定した。耐熱性においては良好であったが、アイ
ゾット衝撃強度が2.6kgf・cm/cmと低く、耐
衝撃性は不十分であった。結果を表2に示す。
Comparative Example 3 Molding and adjustment were performed in the same manner as in Example 1 except that 6 parts by weight of a chlorinated polyethylene having a chlorine content of 36 wt% (Eraslen EXP-771 manufactured by Showa Denko KK) was added. Each physical property was measured. Although the heat resistance was good, the Izod impact strength was as low as 2.6 kgf · cm / cm, and the impact resistance was insufficient. Table 2 shows the results.

【0062】比較例4 塩素含有率36wt%の塩素化ポリエチレン(昭和電工
(株)社製、エラスレンEXP−771)を100重量
部添加した他は実施例1と同様にして成形し、調整し、
各物性を測定した。耐熱性においては良好であったが、
アイゾット衝撃強度において、塩素化ポリエチレンを添
加しているだけの効果は見られず、耐衝撃強度は頭打ち
となり、経済的に不利となる。結果を表2に示す。
Comparative Example 4 Molding and adjustment were carried out in the same manner as in Example 1 except that 100 parts by weight of a chlorinated polyethylene having a chlorine content of 36 wt% (Eraslen EXP-771, manufactured by Showa Denko KK) was added.
Each physical property was measured. Although good in heat resistance,
With respect to the Izod impact strength, the effect of merely adding chlorinated polyethylene is not seen, and the impact strength reaches a peak and becomes economically disadvantageous. Table 2 shows the results.

【0063】比較例5 塩化ビニル系樹脂として、平均重合度700の塩化ビニ
ル系グラフト共重合体(大洋塩ビ(株)社製、TA−I
100)を用い、共重合体樹脂と塩素化ポリエチレン
を共に用いない他は実施例1と同様にして成形し、調整
し、各物性を測定した。アイゾット衝撃強度は96.8
kgf・cm/cmと高く、耐衝撃性は優れていたが、
ガラス転移温度が80.4℃、ビカット軟化点が88.
1℃、HDTが68.6℃と低く、加熱収縮率は横方向
で2.8%、縦方向で1.0%と大きく、耐熱性におい
て不十分であった。結果を表2に示す。
Comparative Example 5 As a vinyl chloride resin, a vinyl chloride graft copolymer having an average polymerization degree of 700 (TA-I, manufactured by Taiyo PVC Co., Ltd.)
100), molded and adjusted in the same manner as in Example 1 except that neither the copolymer resin nor the chlorinated polyethylene was used, and each physical property was measured. Izod impact strength is 96.8
kgf · cm / cm and high impact resistance,
Glass transition temperature: 80.4 ° C, Vicat softening point: 88.
At 1 ° C., the HDT was as low as 68.6 ° C., and the heat shrinkage was 2.8% in the horizontal direction and 1.0% in the vertical direction, which was insufficient in heat resistance. Table 2 shows the results.

【0064】尚、サイディング材の成形品での加熱変形
度合いは、加熱温度70℃において変形率は輸入サイデ
ィング材の0.221%に対して0.032%と低かっ
たが、実施例1の変化率0.01%に対しては大きかっ
た。また、成形品の反り状態は、輸入サイディング材と
比較して、元の形状が維持されないほど変形は大きくは
なかったが、若干の反りが見られ、耐熱性において不十
分な結果を示した。
The degree of heat deformation of the molded product of the siding material was as low as 0.032% at the heating temperature of 70 ° C. as compared with 0.221% of the imported siding material. It was large for the rate of 0.01%. In addition, the warped state of the molded product was not so large that the original shape was not maintained as compared with the imported siding material, but a slight warp was observed, and the heat resistance was insufficient.

【0065】比較例6 塩化ビニル系樹脂として、平均重合度700の塩化ビニ
ル系グラフト共重合体(大洋塩ビ(株)社製、TA−I
100)100重量部に対して、共重合体樹脂として
α−メチルスチレン75重量%、不飽和ニトリル25重
量%を重合させて得られる共重合体(宇部サイコン
(株)社製、S700N)10重量部と塩素含有率36
wt%の塩素化ポリエチレン(昭和電工(株)社製、エ
ラスレンEXP−771)50重量部を用いた他は実施
例1と同様にして成形し、調整し、各物性を測定した。
ガラス転移温度が84.7℃、ビカット軟化点が89.
7℃と低く、加熱収縮率が縦方向で2.1%、横方向で
0.8%と大きく、耐熱性は不十分であった。結果を表
2に示す。
Comparative Example 6 As a vinyl chloride resin, a vinyl chloride graft copolymer having an average degree of polymerization of 700 (TA-I, manufactured by Taiyo PVC Co., Ltd.)
100) 10 parts by weight of a copolymer obtained by polymerizing 75% by weight of α-methylstyrene and 25% by weight of unsaturated nitrile as a copolymer resin (manufactured by Ube Sycon Co., Ltd., S700N) with respect to 100 parts by weight. Parts and chlorine content 36
Molding and adjustment were performed in the same manner as in Example 1 except for using 50 parts by weight of chlorinated polyethylene of wt% (Eraslen EXP-771, manufactured by Showa Denko KK), and the physical properties were measured.
Glass transition temperature: 84.7 ° C, Vicat softening point: 89.
The temperature was as low as 7 ° C., the heat shrinkage was as large as 2.1% in the vertical direction and 0.8% in the horizontal direction, and the heat resistance was insufficient. Table 2 shows the results.

【0066】比較例7 塩化ビニル系樹脂として、平均重合度700の塩化ビニ
ル系グラフト共重合体(大洋塩ビ(株)社製、TA−I
100)100重量部に対して、塩素含有率36wt
%の塩素化ポリエチレン(昭和電工(株)社製、エラス
レンEXP−771)を10重量部用いた他は実施例1
と同様にして成形し、調整し、各物性を測定した。耐熱
性は良好であったが、アイゾット衝撃強度が17.0k
gf・cm/cmと低く、耐衝撃性は不十分であった。
結果を表2に示す。
Comparative Example 7 As a vinyl chloride resin, a vinyl chloride graft copolymer having an average degree of polymerization of 700 (TA-I, manufactured by Taiyo PVC Co., Ltd.)
100) Chlorine content 36 wt.
% Of chlorinated polyethylene (Eraslen EXP-771, manufactured by Showa Denko KK) except that 10 parts by weight was used.
Molding and adjustment were performed in the same manner as described above, and each physical property was measured. Heat resistance was good, but Izod impact strength was 17.0k
gf · cm / cm, which was low, and the impact resistance was insufficient.
Table 2 shows the results.

【0067】比較例8 塩化ビニル系樹脂として、平均重合度700の塩化ビニ
ル系グラフト共重合体(大洋塩ビ(株)社製、TA−I
100)100重量部に対して、共重合体樹脂として
α−メチルスチレン75重量%、不飽和ニトリル25重
量%を重合させて得られる共重合体(宇部サイコン
(株)社製、S700N)を70重量部、塩素含有率3
6wt%の塩素化ポリエチレン(昭和電工(株)社製、
エラスレンEXP−771)を40重量部用いた他は実
施例1と同様にして成形し、調整し、各物性を測定し
た。耐熱性は良好であったがアイゾット衝撃強度が1
8.5kgf・cm/cmと低く、耐衝撃性は不十分で
あった。結果を表2に示す。
Comparative Example 8 As a vinyl chloride resin, a vinyl chloride graft copolymer having an average degree of polymerization of 700 (TA-I, manufactured by Taiyo PVC Co., Ltd.)
100) A copolymer obtained by polymerizing 75% by weight of α-methylstyrene and 25% by weight of unsaturated nitrile as a copolymer resin (S700N, manufactured by Ube Sycon Co., Ltd.) with 100 parts by weight of copolymer resin is 70%. Parts by weight, chlorine content 3
6 wt% chlorinated polyethylene (manufactured by Showa Denko KK)
Except that 40 parts by weight of Eraslen (EXP-771) was used, it was molded and adjusted in the same manner as in Example 1, and each physical property was measured. Heat resistance was good, but Izod impact strength was 1
As low as 8.5 kgf · cm / cm, the impact resistance was insufficient. Table 2 shows the results.

【0068】比較例9 塩化ビニル系樹脂として、平均重合度700の塩化ビニ
ル系グラフト共重合体(大洋塩ビ(株)社製、TA−I
100)100重量部に対して、塩素含有率36wt
%の塩素化ポリエチレン(昭和電工(株)社製、エラス
レンEXP−771)を50重量部用いた他は実施例1
と同様にして成形し、調整し、各物性を測定した。耐熱
性は良好であったが、耐衝撃性においては、塩素化ポリ
エチレンを添加している分だけの効果が見られず、経済
的に不利であった。結果を表2に示す。
Comparative Example 9 As a vinyl chloride resin, a vinyl chloride graft copolymer having an average degree of polymerization of 700 (TA-I, manufactured by Taiyo PVC Co., Ltd.)
100) Chlorine content 36 wt.
% Of chlorinated polyethylene (Eraslen EXP-771 manufactured by Showa Denko KK) except that 50 parts by weight was used.
Molding and adjustment were performed in the same manner as described above, and each physical property was measured. Although heat resistance was good, impact resistance was not economically disadvantageous because the effect of adding chlorinated polyethylene was not seen. Table 2 shows the results.

【0069】[0069]

【表1】 [Table 1]

【0070】[0070]

【表2】 [Table 2]

【0071】[0071]

【発明の効果】本発明によれば、耐熱性、耐衝撃性に優
れた塩化ビニル系樹脂組成物および耐熱性、耐衝撃性な
どの物性バランスに優れた塩化ビニル系樹脂成形物を提
供でき、産業上、優位である。
According to the present invention, it is possible to provide a vinyl chloride resin composition excellent in heat resistance and impact resistance and a molded article of vinyl chloride resin excellent in balance of physical properties such as heat resistance and impact resistance. It has an industrial advantage.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI C08L 25:16 23:28) (C08L 51/00 25:16 23:28) B29K 27:06 (72)発明者 倉重 雄二 大阪府高石市高砂1丁目6番地 三井東圧 化学株式会社内──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. 6 Identification code FI C08L 25:16 23:28) (C08L 51/00 25:16 23:28) B29K 27:06 (72) Inventor Yuji Kurashige Osaka 1-6-6 Takasago, Takaishi-shi, Mitsui Toatsu Chemicals Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】塩化ビニル系樹脂100重量部に対し、α
−メチルスチレンが30〜90重量%、不飽和ニトリル
が10〜50重量%、N−芳香族マレイミドが0〜30
重量%およびこれらと共重合可能なビニル系単量体を必
要に応じて共重合させて得られる共重合体樹脂15〜6
0重量部と塩素含有率が25〜45重量%の塩素化ポリ
エチレン樹脂15〜80重量部から成る、動的粘弾性に
おいて周波数1Hzで測定した場合のtanδの主分散
ピーク値(ガラス転移温度)が90℃以上105℃以
下、ビカット軟化点が93℃以上105℃以下、荷重−
たわみ温度(HDT)が70℃以上85℃以下であり、
かつアイゾット衝撃強度が5kgf・cm/cm以上不
破壊領域以下である耐熱性および耐衝撃性に優れた塩化
ビニル系樹脂組成物。
(1) 100 parts by weight of a vinyl chloride resin, α
30 to 90% by weight of methyl styrene, 10 to 50% by weight of unsaturated nitrile, 0 to 30% of N-aromatic maleimide
Wt.% And copolymer resins 15 to 6 obtained by copolymerizing a vinyl monomer copolymerizable therewith as required.
The main dispersion peak value (glass transition temperature) of tan δ when measured at a frequency of 1 Hz in dynamic viscoelasticity, comprising 0 parts by weight and 15 to 80 parts by weight of a chlorinated polyethylene resin having a chlorine content of 25 to 45% by weight. 90 ° C to 105 ° C, Vicat softening point of 93 ° C to 105 ° C, load −
The deflection temperature (HDT) is 70 ° C or higher and 85 ° C or lower;
A vinyl chloride resin composition excellent in heat resistance and impact resistance having an Izod impact strength of 5 kgf · cm / cm or more and a nondestructive region or less.
【請求項2】請求項1記載の塩化ビニル系樹脂組成物を
溶融成形して成る塩化ビニル系樹脂成形物。
2. A vinyl chloride resin molded product obtained by melt-molding the vinyl chloride resin composition according to claim 1.
JP9086530A 1997-04-04 1997-04-04 Vinyl chloride-based resin composition and molding product by using the same Pending JPH10279757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9086530A JPH10279757A (en) 1997-04-04 1997-04-04 Vinyl chloride-based resin composition and molding product by using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9086530A JPH10279757A (en) 1997-04-04 1997-04-04 Vinyl chloride-based resin composition and molding product by using the same

Publications (1)

Publication Number Publication Date
JPH10279757A true JPH10279757A (en) 1998-10-20

Family

ID=13889555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9086530A Pending JPH10279757A (en) 1997-04-04 1997-04-04 Vinyl chloride-based resin composition and molding product by using the same

Country Status (1)

Country Link
JP (1) JPH10279757A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104387654A (en) * 2014-11-24 2015-03-04 苏州市贝克生物科技有限公司 Medical antibacterial HDPE and preparation method thereof
CN115443294A (en) * 2020-08-19 2022-12-06 电化株式会社 Maleimide copolymer, and chlorine-containing polymer resin composition containing maleimide copolymer and chlorine-containing polymer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104387654A (en) * 2014-11-24 2015-03-04 苏州市贝克生物科技有限公司 Medical antibacterial HDPE and preparation method thereof
CN115443294A (en) * 2020-08-19 2022-12-06 电化株式会社 Maleimide copolymer, and chlorine-containing polymer resin composition containing maleimide copolymer and chlorine-containing polymer

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