JPH032249A - Chlorinated vinyl chloride-based resin composition - Google Patents

Chlorinated vinyl chloride-based resin composition

Info

Publication number
JPH032249A
JPH032249A JP13694389A JP13694389A JPH032249A JP H032249 A JPH032249 A JP H032249A JP 13694389 A JP13694389 A JP 13694389A JP 13694389 A JP13694389 A JP 13694389A JP H032249 A JPH032249 A JP H032249A
Authority
JP
Japan
Prior art keywords
vinyl chloride
chlorinated vinyl
methyl methacrylate
based resin
weight
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
JP13694389A
Other languages
Japanese (ja)
Inventor
Hiroshi Ishimatsu
石松 博史
Toshio Kamisaka
上坂 外志夫
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP13694389A priority Critical patent/JPH032249A/en
Publication of JPH032249A publication Critical patent/JPH032249A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain the subject inexpensive composition, excellent in transparency, heat, weather and chemical resistance and mechanical strength and suitable as building materials and automatic parts by blending a chlorinated vinyl chloride-based resin with vinyl chloride-based resin and methyl methacrylate- styrene copolymer. CONSTITUTION:The objective composition obtained by blending 100 pts.wt. chlorinated vinyl chloride-based resin (preferably a resin having a chlorination degree of 62-70wt.% chlorine content and polymerization degree of 500-1000) with preferably 10-100 pts.wt. vinyl chloride-based resin (preferably having 400-1400 polymerization degree) and preferably 0.1-5 pts.wt. methyl methacrylate- styrene copolymer (preferably a random copolymer with 50-90wt.% methyl methacrylate component content and 10000-500000 weight-average molecular weight).

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、塩素化塩化ビニル系樹脂組成物に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a chlorinated vinyl chloride resin composition.

(従来の技術) ポリ塩化ビニル等の塩化ビニル系樹脂は、安価で機械的
強度に優れ、難燃で耐候性及び透明性に優れるため、建
築材料や自動車部品など広く使用されている。しかし耐
熱性が充分でない。
(Prior Art) Vinyl chloride resins such as polyvinyl chloride are inexpensive, have excellent mechanical strength, are flame retardant, have excellent weather resistance, and transparency, and are therefore widely used in construction materials and automobile parts. However, the heat resistance is not sufficient.

塩化ビニル系樹脂の耐熱性を向上させるために、塩化ビ
ニル系樹脂を後塩素化した所謂塩素化塩化ビニル系樹脂
がある。しかし、この塩素化塩化ビニル系樹脂は、後塩
素化によりそれだけコスト高になる。
In order to improve the heat resistance of vinyl chloride resins, there are so-called chlorinated vinyl chloride resins, which are obtained by post-chlorinating vinyl chloride resins. However, this chlorinated vinyl chloride resin becomes more expensive due to post-chlorination.

そこで、コスト低減のため、塩素化塩化ビニル系樹脂に
塩化ビニル系樹脂をブレンドすることが試みられている
。ところが、塩素化塩化ビニル系樹脂と塩化ビニル系樹
脂とは相溶性が悪く、そのため成形体の透明性が悪くな
り、透明性が要求される用途には使用できないという問
題がある。
Therefore, in order to reduce costs, attempts have been made to blend vinyl chloride resins with chlorinated vinyl chloride resins. However, chlorinated vinyl chloride resins and vinyl chloride resins have poor compatibility, resulting in a problem in that the transparency of the molded product deteriorates and it cannot be used in applications that require transparency.

(発明が解決しようとする課題) 本発明は、上記の問題を解決するものであり、その目的
とするところは、安価にして透明性及び耐熱性の良い塩
素化塩化ビニル系樹脂組成物を提供することにある。
(Problems to be Solved by the Invention) The present invention solves the above problems, and its purpose is to provide a chlorinated vinyl chloride resin composition that is inexpensive and has good transparency and heat resistance. It's about doing.

(課題を解決するための手段) 本発明の塩素化塩化ビニル系樹脂組成物は、塩素化塩化
ビニル系樹脂に塩化ビニル系樹脂及びメチルメタクリレ
ート−スチレン共重合体を配合してなり、そのことによ
り上記の目的が達成される。
(Means for Solving the Problems) The chlorinated vinyl chloride resin composition of the present invention is made by blending a chlorinated vinyl chloride resin with a vinyl chloride resin and a methyl methacrylate-styrene copolymer. The above objectives are achieved.

本発明で用いる塩素化塩化ビニル系樹脂としては、塩化
ビニルの単独重合体の塩素化物をはじめ、塩化ビニルと
他のモノマーとの共重合体、例えば塩化ビニル−N−置
換マレイミド共重合体の塩素化物が好適である。
The chlorinated vinyl chloride resin used in the present invention includes chlorinated vinyl chloride homopolymers, copolymers of vinyl chloride and other monomers, such as chlorinated vinyl chloride-N-substituted maleimide copolymers. compounds are preferred.

上記塩素化塩化ビニル系樹脂の塩素化度は、低(なると
耐熱性の改良が充分でなく、高くなると熱分解しやすく
なるので、塩素含有率で62〜70重量%の範囲のもの
が好ましい。また、塩素化塩化ビニル系樹脂の重合度は
、低くなると耐衝撃性が低下し、高くなると成形加工性
(流動性)が低下するので、重合度は500〜1000
の範囲のものが好ましい。
The degree of chlorination of the above-mentioned chlorinated vinyl chloride resin is preferably in the range of 62 to 70% by weight in terms of chlorine content, because if the degree of chlorination is low, the improvement in heat resistance will not be sufficient, and if it is high, it will be easily thermally decomposed. In addition, when the degree of polymerization of chlorinated vinyl chloride resin becomes low, the impact resistance decreases, and when it increases, the moldability (fluidity) decreases, so the degree of polymerization is 500 to 1000.
Preferably, the range is .

本発明で用いる塩化ビニル系樹脂としては、塩化ビニル
の単独重合体をはじめ、塩化ビニルと他の七ツマ−との
共重合体、例えば塩化ビニル−N−置換マレイミド共重
合体が好適である。
Suitable vinyl chloride resins used in the present invention include vinyl chloride homopolymers, copolymers of vinyl chloride and other heptamers, such as vinyl chloride-N-substituted maleimide copolymers.

かかる塩化ビニル系樹脂の重合度は、低くなると機械的
強度が低下し、高くなると成形加工性(流動性)及び透
明性が低下するので、重合度は400〜1400の範囲
のものが好ましい。
The degree of polymerization of the vinyl chloride resin is preferably in the range of 400 to 1400, because if the degree of polymerization is low, the mechanical strength will be decreased, and if it is high, the moldability (fluidity) and transparency will be decreased.

上記塩化ビニル系樹脂の配合量は、少なくなるとコスト
低減の効果が小さく、多くなると耐熱性が不充分となる
ので、塩素化塩化ビニル系樹脂100重量部に対して1
0〜lOO重量部の範囲で配合されるのが好ましい。
If the amount of the vinyl chloride resin blended is small, the cost reduction effect will be small, and if it is too large, the heat resistance will be insufficient.
It is preferable that the content is in the range of 0 to 100 parts by weight.

また、本発明で用いるメチルメタクリレート−スチレン
共重合体としては、特にランダム共重合体が好ましい。
Moreover, as the methyl methacrylate-styrene copolymer used in the present invention, a random copolymer is particularly preferable.

また、メチルメタクリレート成分の含有率が50〜90
重量%の範囲のものが好ましい。メチルメタクリレート
成分の含有率が上記の範囲を外れ、低くなっても高くな
っても透明性が次第に低下してい(。また、上記共重合
体の分子量は、小さくなると脆(耐熱性も低下する傾向
があり、大きくなると成形加工性(流動性)が低下する
傾向があるので、重量平均分子量が1〜50万の範囲の
ものが好ましい。
In addition, the content of methyl methacrylate component is 50 to 90
A range of % by weight is preferred. Even if the content of the methyl methacrylate component is out of the above range, whether it is low or high, the transparency gradually decreases. If it becomes large, the moldability (fluidity) tends to decrease, so those with a weight average molecular weight in the range of 10,000 to 500,000 are preferable.

そして、上記のメチルメタクリレート−スチレン共重合
体は、前記の塩素化塩化ビニル系樹脂100重量部に対
して0.1〜5重量部の範囲で配合されるのが好ましい
。メチルメタクリレート−スチレン共重合体の配合量が
上記の範囲を外れ、低くなっても高くなっても透明性が
次第に低下していく。
The methyl methacrylate-styrene copolymer is preferably blended in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the chlorinated vinyl chloride resin. If the blending amount of the methyl methacrylate-styrene copolymer is outside the above range, whether it is lower or higher, the transparency will gradually decrease.

本発明の塩素化塩化ビニル系樹脂組成物の構成は上述の
通りであるが、配合組成物から成形体を成形するには、
熱安定剤、滑剤、耐衝撃性改良剤、着色剤など、一般に
塩素化塩化ビニル系樹脂や塩化ビニル系樹脂に用いられ
ている配合剤が、必要に応じて透明性を著しく損なわな
い範囲で配合される。そして、例えば押出成形法や射出
成形法により所望の形状に成形される。
The composition of the chlorinated vinyl chloride resin composition of the present invention is as described above, but in order to mold a molded article from the blended composition,
Compounding agents commonly used in chlorinated vinyl chloride resins and vinyl chloride resins, such as heat stabilizers, lubricants, impact modifiers, and colorants, are added as necessary to the extent that they do not significantly impair transparency. be done. Then, it is molded into a desired shape by, for example, extrusion molding or injection molding.

(作用) 本発明において、高価であるが耐熱性の優れた塩素化塩
化ビニル系樹脂に、耐熱性は充分でないが安価な塩化ビ
ニル系樹脂が適量配合されると、塩素化塩化ビニル系樹
脂のコスト低減がなされ、またその耐熱性は塩化ビニル
系樹脂の有する耐熱性よりも向上する。
(Function) In the present invention, when an appropriate amount of an inexpensive vinyl chloride resin that does not have sufficient heat resistance is blended with an expensive chlorinated vinyl chloride resin that has excellent heat resistance, the chlorinated vinyl chloride resin The cost is reduced, and its heat resistance is improved compared to that of vinyl chloride resin.

さらに、メチルメタクリレート−スチレン共重合体が適
量配合されると、この共重合体が相溶化剤として働き、
塩素化塩化ビニル系樹脂に塩化ビニル系樹脂を配合する
ことにより低下する成形体の透明性が改善され、また耐
熱性も改善される。
Furthermore, when an appropriate amount of methyl methacrylate-styrene copolymer is blended, this copolymer acts as a compatibilizer,
By blending the vinyl chloride resin with the chlorinated vinyl chloride resin, the decreased transparency of the molded article is improved, and the heat resistance is also improved.

(実施例) 以下、本発明の実施例及び比較例を示す。(Example) Examples and comparative examples of the present invention are shown below.

1隻調よ 重合度700で塩素含有率67重量%の塩素化ポリ塩化
ビニル()IA−24K 、徳山積水製)100重量部
、重合度600のポリ塩化ビニル(徳山積水製)30重
量部、平均分子量15万でメチルメタクリレート成分の
含有率50ffi量%のメチルメタクリレート−スチレ
ンランダム共重合体(積木化成品社製)1.5重量部、
錫系安定剤としてメルカプト系(TVS 8831 、
日東化成製)2.0重量部、?L/−ト系(TVS 8
813 、日東化成製)1.0重量部、滑剤としてステ
アリン酸(新日本理化製)0.5重量部、ステアリン酸
カルシウム(三共有機製)0.3重量部をミキサーで混
合して配合組成物を得た。
100 parts by weight of chlorinated polyvinyl chloride (IA-24K, manufactured by Tokuyama Sekisui) with a degree of polymerization of 700 and a chlorine content of 67% by weight, 30 parts by weight of polyvinyl chloride with a degree of polymerization of 600 (manufactured by Tokuyama Sekisui), 1.5 parts by weight of methyl methacrylate-styrene random copolymer (manufactured by Tsuki Kaseihin Co., Ltd.) with an average molecular weight of 150,000 and a content of methyl methacrylate component of 50 ffi weight%;
Mercapto type (TVS 8831,
Nitto Kasei) 2.0 parts by weight, ? L/-t type (TVS 8
813, manufactured by Nitto Kasei), 0.5 parts by weight of stearic acid (manufactured by Shin Nihon Rika) as a lubricant, and 0.3 parts by weight of calcium stearate (manufactured by Sankyoki) were mixed in a mixer to prepare a compounded composition. Obtained.

この配合組成物を185°Cのロールで3分間混練した
後、温度185°C1圧力190 kg/ cdで3分
間プレスして厚さ3III11及び3.21!mのシー
トを調製した。この厚さ3mmのシートについて透明性
の指標である曇り度(ヘイズ)(JIS K−6714
に準拠)を測定し、厚さ3.2Mのシートについて、耐
熱性の指標である熱変形温度(HDT) (JIS K
−7207A法に準拠、荷重18.6kg/ d)を測
定した。
This blended composition was kneaded for 3 minutes with a roll at 185°C, and then pressed for 3 minutes at a temperature of 185°C and a pressure of 190 kg/cd to obtain thicknesses of 3III11 and 3.21! A sheet of m was prepared. For this 3mm thick sheet, haze (JIS K-6714) is an indicator of transparency.
The heat distortion temperature (HDT), which is an index of heat resistance, was measured for a 3.2M thick sheet (based on JIS K
-7207A method, load 18.6 kg/d) was measured.

その結果を第1表に示す。The results are shown in Table 1.

なお、前記塩素化ポリ塩化ビニルの曇り度は8%、熱変
形温度は83°Cであり、また前記ポリ塩化ビニルの曇
り度は6%、熱変形温度は68°Cである。
The haze of the chlorinated polyvinyl chloride is 8% and the heat distortion temperature is 83°C, and the haze of the polyvinyl chloride is 6% and the heat distortion temperature is 68°C.

ス」1址l 実施例1において、メチルメタクリレート−スチレンラ
ンダム共重合体の配合量を3.0重量部に変更したこと
以外は、実施例1と同様に行い、曇り度及び熱変形温度
を測定した。その結果を第1表に示す。
The same procedure as in Example 1 was carried out except that the amount of methyl methacrylate-styrene random copolymer was changed to 3.0 parts by weight, and the degree of haze and heat distortion temperature were measured. did. The results are shown in Table 1.

1施11 実施例1において、ポリ塩化ビニルの配合量を60重量
部に変更したこと以外は、実施例1と同様に行い、曇り
度及び熱変形温度を測定した。
Test 1 11 The same procedure as in Example 1 was performed except that the amount of polyvinyl chloride was changed to 60 parts by weight, and the degree of haze and heat distortion temperature were measured.

その結果を第1表に示す。The results are shown in Table 1.

丈施桝土 実施例1において、メチルメタクリレートスチレンラン
ダム共重合体のメチルメタクリレート成分の含有率を7
5重量%に変更したこと以外は、実施例1と同様に行い
、曇り度及び熱変形温度を測定した。その結果を第1表
に示す。
In Example 1, the content of the methyl methacrylate component in the methyl methacrylate styrene random copolymer was set to 7.
The haze degree and heat distortion temperature were measured in the same manner as in Example 1 except that the amount was changed to 5% by weight. The results are shown in Table 1.

且較IL 実施例1において、メチルメタクリレートスチレンラン
ダム共重合体を全く配合しなかったこと以外は、実施例
1と同様に行い、曇り度及び熱変形温度を測定した。そ
の結果を第1表に示す。
Comparative IL Example 1 was carried out in the same manner as in Example 1, except that no methyl methacrylate styrene random copolymer was blended, and the degree of haze and heat distortion temperature were measured. The results are shown in Table 1.

1較■1 実施例3において、メチルメタクリレート−スチレンラ
ンダム共重合体を配合しないこと以外は、実施例3と同
様に行い、曇り度及び熱変形温度を測定した。その結果
を第1表に示す。
Comparison 1 Comparison 1 The same procedure as in Example 3 was carried out except that the methyl methacrylate-styrene random copolymer was not blended, and the degree of haze and heat distortion temperature were measured. The results are shown in Table 1.

第1表 (発明の効果) 上述の通り、塩素化塩化ビニル系樹脂に塩化ビニル系樹
脂及びメチルメタクリレート−スチレン共重合体を配合
することにより、安価にして透明性及び耐熱性の良い塩
素化塩化ビニル系樹脂組成物を得ることができる。
Table 1 (Effects of the Invention) As mentioned above, by blending a vinyl chloride resin and a methyl methacrylate-styrene copolymer with a chlorinated vinyl chloride resin, a chlorinated chloride resin that is inexpensive and has good transparency and heat resistance can be produced. A vinyl resin composition can be obtained.

このような塩素化塩化ビニル系樹脂組成物は、塩素化塩
化ビニル系樹脂や塩化ビニル系樹脂と同様に、難燃で機
械的強度、耐候性、耐薬品性等にも優れるため、特に透
明性が要求される建築材料や自動車部品等に好適に使用
され得る。
Like chlorinated vinyl chloride resins and vinyl chloride resins, such chlorinated vinyl chloride resin compositions are flame retardant, have excellent mechanical strength, weather resistance, chemical resistance, etc., and are particularly transparent. It can be suitably used for building materials, automobile parts, etc. that require

Claims (1)

【特許請求の範囲】[Claims] 1、塩素化塩化ビニル系樹脂に塩化ビニル系樹脂及びメ
チルメタクリレート−スチレン共重合体を配合してなる
塩素化塩化ビニル系樹脂組成物。
1. A chlorinated vinyl chloride resin composition prepared by blending a chlorinated vinyl chloride resin with a methyl methacrylate-styrene copolymer.
JP13694389A 1989-05-30 1989-05-30 Chlorinated vinyl chloride-based resin composition Pending JPH032249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13694389A JPH032249A (en) 1989-05-30 1989-05-30 Chlorinated vinyl chloride-based resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13694389A JPH032249A (en) 1989-05-30 1989-05-30 Chlorinated vinyl chloride-based resin composition

Publications (1)

Publication Number Publication Date
JPH032249A true JPH032249A (en) 1991-01-08

Family

ID=15187157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13694389A Pending JPH032249A (en) 1989-05-30 1989-05-30 Chlorinated vinyl chloride-based resin composition

Country Status (1)

Country Link
JP (1) JPH032249A (en)

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