JPH0450252A - Weather-resistant resin composition having improved scratch resistance and molded article thereof - Google Patents

Weather-resistant resin composition having improved scratch resistance and molded article thereof

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Publication number
JPH0450252A
JPH0450252A JP15828490A JP15828490A JPH0450252A JP H0450252 A JPH0450252 A JP H0450252A JP 15828490 A JP15828490 A JP 15828490A JP 15828490 A JP15828490 A JP 15828490A JP H0450252 A JPH0450252 A JP H0450252A
Authority
JP
Japan
Prior art keywords
weight
parts
thermoplastic resin
acid ester
polymerization
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
JP15828490A
Other languages
Japanese (ja)
Inventor
Yoshinori Kobayashi
小林 美徳
Isamu Hattori
勇 服部
Fumio Inoue
文夫 井上
Shoichi Murakami
正一 村上
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.)
Resonac Corp
Original Assignee
Hitachi 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP15828490A priority Critical patent/JPH0450252A/en
Publication of JPH0450252A publication Critical patent/JPH0450252A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain the subject composition having excellent weather resistance, heat- resistance, scratch resistance, etc., and suitable for automobile parts, etc., by mixing a thermoplastic resin containing a specific methacrylic acid ester and compounding the mixture further with a dimethylpolysiloxane oil having a specific viscosity. CONSTITUTION:The objective composition is produced by compounding (A) 20-90 pts.wt. of a thermoplastic resin produced by compounding and polymerizing (A1) 95-50 pts.wt. of a monomer composed of aromatic vinyl compound, methacrylic acid ester, etc., in the presence of (A2) 5-50 pts.wt. of a graft polymer rubber produced by performing emulsion-polymerization of (i) a polymerizable monomer mixture composed of a polyfunctional monomer, an acrylic acid ester having 1-13C alkyl group, etc., in the presence of (ii) a diene polymer until the polymerization ratio reaches 50-93% with (B) 5-40 pts.wt. of a thermoplastic resin produced by polymerizing a methacrylic acid ester, etc., having 5-22C alicyclic hydrocarbon group and (C) 5-40 pts.wt. of a thermoplastic resin produced by polymerizing an aromatic vinyl compound and a vinyl cyanide compound and compounding the obtained mixture with (D) 0.1-10wt.% of a dimethylpolysiloxane oil having a viscosity of 1,000-30,000cSt.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明上耐衝撃性、成形性及び成形品外ll!に優れ1
%に耐候性、耐熱性及び耐傷付き性に優れた熱可塑性樹
脂組成物及び成形品に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention provides impact resistance, moldability, and non-molded products! Excellent 1
The present invention relates to thermoplastic resin compositions and molded products that have excellent weather resistance, heat resistance, and scratch resistance.

(従来の技術) 耐候性樹脂としては、主鎖中に二重結合をほとんど有し
ない飽和ゴム状重合体を使用した樹脂が提案されておシ
、その代表的なものとしてアクリル系ゴムおよびエチレ
ンプロピレン系ゴムを使用したものが知られている。こ
れらの飽和ゴムは紫外線に対して安定であるため屋外で
便用する成形品に無塗装で使用されているが、塗装品に
比べて成形品に傷が付きやすいという欠点がありg塗装
で用いる耐候性樹脂としてはまだ十分ではない。
(Prior art) As weather-resistant resins, resins using saturated rubber-like polymers that have almost no double bonds in their main chains have been proposed, and representative examples include acrylic rubber and ethylene propylene. Rubbers using rubber are known. These saturated rubbers are stable against ultraviolet rays, so they are used unpainted in molded products for outdoor use, but they have the disadvantage that molded products are more easily scratched than painted products, so they are used with g-painting. It is still not sufficient as a weather-resistant resin.

特に自動車部品用に使用する場合は目勧車洗車時等に傷
が付きにくい材料が要求されている。
In particular, when used for automobile parts, materials that are resistant to scratches during car washes are required.

(発明が解決しようとする課題) 本発明者等は、従来のこのような耐候性樹脂の欠点の改
良について研究した結果、炭素原子数5〜22個の脂環
式炭化水素基を有するメタクリル酸エステルを含む熱可
塑性樹脂を混合し、さらに特定粘度のジメチルポリシロ
キサンオイルを混合することによシ成形品の耐候性をそ
こなわずに。
(Problems to be Solved by the Invention) As a result of research on improving the drawbacks of conventional weather-resistant resins, the present inventors discovered that methacrylic acid having an alicyclic hydrocarbon group having 5 to 22 carbon atoms By mixing thermoplastic resin containing ester and dimethylpolysiloxane oil with a specific viscosity, the weather resistance of molded products is not compromised.

しかも傷が付きにくい熱可塑性樹脂組成物を見出し1本
発明を完成するに至った。
In addition, they discovered a thermoplastic resin composition that is resistant to scratches and completed the present invention.

(課題を解決するための手段) 本発明は、多官能性単量体0.1〜20重数%。(Means for solving problems) In the present invention, the polyfunctional monomer is contained in an amount of 0.1 to 20% by weight.

炭素数1〜130アルキル基を有するアクリル酸エステ
ル50〜99.9重i−%及び共重合可能な他のビニル
化合物θ〜30重量%を配合して得られる重合性単量体
混合物fa)95〜60]i量部をジエン系重合体(b
)5〜40重数部の存在下に(a)と(blの合計が1
00重量部となるように配合し1重合率が50〜93%
まで乳化重合させた後1重合を停止させて得られるグラ
フト重合体ゴ噸に5〜50重量部の存在下に、芳香族ビ
ニル化合物0〜100重量%、メタクリル酸エステル0
〜100重量%及びシアン化ビニル化合物0〜40膚量
%からなる単量体(B)95〜50重量部を、(A)と
(B)の合計が100重量部となるように配合し1重合
させて得られる熱可塑性樹脂(I)20〜90重量部、
炭素原子数5〜22個の脂環式炭化水素基を有するメタ
クリル酸エステル20〜100重量%及び共重合可能な
他の重合性単量体0〜80重量%を重合させて得られる
熱可塑性樹脂(■)5〜40重量部、並びに芳香族ビニ
ル化合物65〜85重量%及びシアン化ビニル化合物1
5〜35重量%を重合させて得られる熱可塑性樹脂(1
15〜40重量部を(I)。
Polymerizable monomer mixture fa)95 obtained by blending 50 to 99.9 weight % of an acrylic ester having an alkyl group with 1 to 130 carbon atoms and θ to 30 weight % of another copolymerizable vinyl compound ~60] i part of the diene polymer (b
) in the presence of 5 to 40 parts by weight, the sum of (a) and (bl) is 1
00 parts by weight, and the 1 polymerization rate is 50 to 93%.
In the presence of 5 to 50 parts by weight, 0 to 100% by weight of an aromatic vinyl compound and 0 to 100% of a methacrylic acid ester are added to a graft polymer obtained by emulsion polymerization to 1 and then stopping the polymerization.
95 to 50 parts by weight of monomer (B) consisting of ~100% by weight and 0 to 40% by weight of a vinyl cyanide compound are blended so that the total of (A) and (B) is 100 parts by weight. 20 to 90 parts by weight of thermoplastic resin (I) obtained by polymerization,
Thermoplastic resin obtained by polymerizing 20 to 100% by weight of a methacrylic acid ester having an alicyclic hydrocarbon group having 5 to 22 carbon atoms and 0 to 80% by weight of another copolymerizable monomer. (■) 5 to 40 parts by weight, and 65 to 85% by weight of aromatic vinyl compound and 1 part by weight of vinyl cyanide compound
Thermoplastic resin obtained by polymerizing 5 to 35% by weight (1
15 to 40 parts by weight of (I).

(II)及び(I)の合計が100重量部となるように
配合して得られる混合物に、25℃における粘度が10
00〜30000センチストークスのジメチルポリノロ
キサンオイルを該混合物に対して0.1〜10重量%混
合してなる耐傷付き性の改良された耐候性樹脂組成物、
並びに該耐候性樹脂組成物を用いて成形して得られる成
形品に関する。
A mixture obtained by blending (II) and (I) in a total amount of 100 parts by weight has a viscosity of 10 parts by weight at 25°C.
A weather-resistant resin composition with improved scratch resistance, which is obtained by mixing 0.1 to 10% by weight of dimethylpolynoroxane oil of 0.00 to 30,000 centistokes with respect to the mixture;
The present invention also relates to a molded article obtained by molding the weather-resistant resin composition.

まず、熱可塑性樹脂(I)について説明する。First, the thermoplastic resin (I) will be explained.

重合性単量体混合物(alの一成分である多官能性単量
体としては、トリアリルシアヌレート、トリアリルイン
シアヌレート、ジビニルベンゼン、トリアクリルホルマ
ール、エチレングリコールジメタクリレート等の多価ビ
ニル化合物や多価アリル化合物が使用できるが、この中
でも特に、トリアリルシアヌレートとトリアリルイソシ
アヌレートが最終的に得られる樹脂の耐衝撃性が最も優
れているので好ましい。多官能性単量体は9重合性単量
体混合物(a)中、0.1〜20重量%、好ましくは0
.5〜10重量%使用される。0.1重量%未満では架
橋度が不十分で耐衝撃性、成形品外観が劣り。
Polyfunctional monomers that are a component of the polymerizable monomer mixture (al include polyvalent vinyl compounds such as triallyl cyanurate, triallyl in cyanurate, divinylbenzene, triacryl formal, and ethylene glycol dimethacrylate) Among these, triallyl cyanurate and triallyl isocyanurate are particularly preferred because the resulting resin has the best impact resistance.The polyfunctional monomer is 9 In the polymerizable monomer mixture (a), 0.1 to 20% by weight, preferably 0
.. 5-10% by weight is used. If it is less than 0.1% by weight, the degree of crosslinking will be insufficient and the impact resistance and appearance of the molded product will be poor.

20重量Xを越えると架橋度が過剰となり耐衝撃性が低
下する。
When the weight exceeds 20X, the degree of crosslinking becomes excessive and impact resistance decreases.

炭素数1〜130アルキル基を有するアクリル酸エステ
ルとして汀、エチルアクリレート、ブチルアクリレート
、2−エチルエキシルアクリレート等があり、このうち
ブチルアクリレートが特に好ましい。アクリル酸エステ
ルは1重合体混合物(a)中、50〜99.9重量%、
好ましくは65〜99.5重量%1吏用される。50重
量%未満ではアクリルゴムの特性が低下し、99.9重
量%を超えると耐衝撃性及び成形品外観に劣る。
Examples of acrylic esters having an alkyl group having 1 to 130 carbon atoms include ethyl acrylate, butyl acrylate, 2-ethylexyl acrylate, and among these, butyl acrylate is particularly preferred. Acrylic acid ester is 50 to 99.9% by weight in the monopolymer mixture (a),
It is preferably used in an amount of 65 to 99.5% by weight. If it is less than 50% by weight, the properties of the acrylic rubber will deteriorate, and if it exceeds 99.9% by weight, the impact resistance and appearance of the molded product will be poor.

共重合可能な他のビニル化合物としてはアクリロニドI
Jル、スチレン等があり1重合性単量体混合物(a)中
、0〜30重徽%好ましくは0〜25重飯%の範囲で使
用される。30重量%を越えるとアクリルゴムとしての
特性が充分得られない。
Other copolymerizable vinyl compounds include acrylonide I
Polymeric monomers, styrene, etc. are used in the monomerizable monomer mixture (a) in an amount of 0 to 30% by weight, preferably 0 to 25% by weight. If it exceeds 30% by weight, sufficient properties as an acrylic rubber cannot be obtained.

ジエン系重合体(b)としては、ポリブタジェン。The diene polymer (b) is polybutadiene.

ブタジェン−スチレン共重合体等が夏用できる。Butadiene-styrene copolymer etc. can be used in summer.

重合性単量体混合物(ajの95〜60重量部を。Polymerizable monomer mixture (95 to 60 parts by weight of aj.

ジエン系重合体(b)5〜40重量部の存在下に(a)
と(b)の合計が100重量部となるように配合し、乳
化重合される。ここで、ジエン系重合体(blが、5重
量部未満では、耐衝撃性、成形品外観が不充分であり、
40重量部を超えると耐候性に劣る。
(a) in the presence of 5 to 40 parts by weight of diene polymer (b)
and (b) are blended so that the total amount is 100 parts by weight, and emulsion polymerization is carried out. Here, if the diene polymer (bl) is less than 5 parts by weight, the impact resistance and appearance of the molded product will be insufficient,
If it exceeds 40 parts by weight, weather resistance will be poor.

グラフト重合体ゴム(A)を得るためのこの乳化重合は
、当業者に一般的に仰られている方法で行うことができ
る。この乳化重合において1重合を重合率100%まで
行わず、50〜93%、好ましくは60〜90%で停止
させることが高面撃性を得るための必須条件である。重
合率が50%未満では、重合体(Blの重合の際に単量
体FB+と共重合する比率が高くなり、熱変形@度が低
下する。又。
This emulsion polymerization to obtain the graft polymer rubber (A) can be carried out by methods commonly known to those skilled in the art. In this emulsion polymerization, it is an essential condition for obtaining high surface impact properties that one polymerization should not be carried out to a polymerization rate of 100%, but should be stopped at a polymerization rate of 50 to 93%, preferably 60 to 90%. If the polymerization rate is less than 50%, the ratio of copolymerization with the monomer FB+ during polymerization of the polymer (Bl) increases, and the degree of thermal deformation decreases.

重合率が93%を越えると耐sS性の向上効果が充分得
られない。グラフト重合体ゴムfA)を得るための乳化
重合に際し、少゛量の乳化剤としてオレイン酸ナトリウ
ム、ラウリル硫散ソーダ、ドデシルベンゼンスルホン酸
ソーダなどのアニオン系乳化剤やポリオキシエチレンセ
チルエーテルのようなノニオン系乳化剤を使用してもよ
い。また1重合開始剤としては1通常の乳化重合に用い
られる。
If the polymerization rate exceeds 93%, a sufficient effect of improving sS resistance cannot be obtained. During emulsion polymerization to obtain the graft polymer rubber fA), a small amount of anionic emulsifier such as sodium oleate, sodium lauryl sulfur, sodium dodecylbenzenesulfonate, or a nonionic emulsifier such as polyoxyethylene cetyl ether is used as an emulsifier. Emulsifiers may also be used. Further, as a polymerization initiator, it is used in ordinary emulsion polymerization.

例えば過硫酸塩やキュメンハイドロパーオキサイド−ナ
トリウムホルムアルデヒドスルホキシレートで構成され
るレドックス系のものが愛用される。
For example, redox compounds composed of persulfate and cumene hydroperoxide-sodium formaldehyde sulfoxylate are commonly used.

こうして得られるグラフト重合体ゴA(A)5〜50重
量部の存在下に、単量体(B)95〜50重量部を、(
A)と(B)の合計が100重敏部上なるように配合し
て重合し、熱可塑性樹脂(Ilを製造する。ここで、グ
ラフト重合体ゴムfA)が5重合部禾溝では最終的に得
られる樹脂の耐衝撃性が低下し、500重合を越えると
機械的強度、熱変形温度が低下する。
In the presence of 5 to 50 parts by weight of the thus obtained graft polymer GoA (A), 95 to 50 parts by weight of the monomer (B) (
A) and (B) are blended and polymerized so that the sum of them is more than 100 parts, to produce a thermoplastic resin (Il.Here, graft polymer rubber fA) is finally added to 5 polymer parts in the groove. The impact resistance of the resulting resin decreases, and if the polymerization exceeds 500%, the mechanical strength and heat distortion temperature decrease.

単量体(B)として用いられる芳香族ビニル化合物とし
ては、α−メチルスチレン、α−エチルスチL’7等f
7)α−置換スチレン、クロロスチレン、ビニルトルエ
フ、  t−ブチルスチレン等の核置換スチレン、スチ
レン等、シアン化ビニル化合物としては、アクリロニト
リル、メタクリロニトリル等。
Examples of the aromatic vinyl compound used as the monomer (B) include α-methylstyrene, α-ethylstyrene L'7, etc.
7) Nucleically substituted styrenes such as α-substituted styrene, chlorostyrene, vinyltoluev, t-butylstyrene, styrene, etc., vinyl cyanide compounds such as acrylonitrile, methacrylonitrile, etc.

メタクリル酸エステルとしてはメタクリル酸メチル、メ
タクリル酸エチル、メタクリル酸ブチル等が使用できる
。なお、単量体(B>中、シアン化ビニルが40重量%
を超えると成形性が低下する。
As the methacrylic ester, methyl methacrylate, ethyl methacrylate, butyl methacrylate, etc. can be used. In addition, vinyl cyanide is 40% by weight of the monomer (B>
If it exceeds this value, moldability will decrease.

グラフト共重合体ゴム(A)の存在下に単量体(B)を
重合させるには、乳化重合法、tll重重合法溶液重合
法等の重合法が採用できる。重合に際し、乳化剤、Ji
L合開合剤始剤鎖移動剤などが適宜添加される。重合開
始剤としては過硫酸塩やキュメンハイドロパーオキサイ
ド−ナトリウムホルムアルデヒドスルホキシレート等の
レドックス系開始剤が単量体FB)に対し好ましくは、
約0.1〜2重量%使用さnる。連鎖移動剤としてに、
t−ドデシルメルカプタンなどが単量体(B)に対して
好ましくは約1重量%以内の量で使用される。重合温度
は、20〜ioo℃、%に50〜90℃の範囲で行うの
が好ましい。なお、グラフト重合体ゴムの製造に際して
も同様の条件を採用すればよい。
In order to polymerize the monomer (B) in the presence of the graft copolymer rubber (A), a polymerization method such as an emulsion polymerization method, a tll polymerization method, or a solution polymerization method can be employed. During polymerization, emulsifier, Ji
L-synthesis initiator, chain transfer agent, etc. are added as appropriate. As the polymerization initiator, redox initiators such as persulfate and cumene hydroperoxide-sodium formaldehyde sulfoxylate are preferably used for monomer FB).
About 0.1-2% by weight is used. As a chain transfer agent,
T-dodecyl mercaptan and the like are preferably used in an amount of up to about 1% by weight based on monomer (B). The polymerization temperature is preferably 20 to 100°C, 50 to 90°C. Note that similar conditions may be employed when producing the graft polymer rubber.

グラフト重合体ゴム入の存在下に重合させる単量体CB
)は、−回で全量重合したり、数回に分割して重合した
り、あるいは全単量体を滴下しながら重合する方法など
のいずれの重合方法を採用してもかまわないが、@−段
目として、単量体(Blのうち5〜30重量X重量台率
50%以上になるまで重合させ九のち第二段目として単
量体(B)の残量を添加して重合させるのが好ましい。
Monomer CB polymerized in the presence of graft polymer rubber
) may be polymerized by any polymerization method, such as polymerizing the entire amount in - times, polymerizing in several times, or polymerizing while dropping all the monomers, but @- In the second step, the monomer (Bl) is polymerized until it reaches 5 to 30% by weight x 50% or more, and then in the second step, the remaining amount of monomer (B) is added and polymerized. is preferred.

このような二段階重合方法を採用することにより、更に
流動性。
By adopting such a two-step polymerization method, fluidity is further improved.

熱変形温度が高く、かつ、耐衝撃性の高い樹脂を得るこ
とができるので好ましい方法である。最初に重合させる
のは単量体(B)のうち5〜30重量%の範囲が好まし
く、5重量%未満では全量を一段で重合させる場合と差
がなく、30重量%を越えると単量体CB)を分割添加
して重合させることによる耐衝撃性向上効果および熱変
形温度の向上効果が少なくなる傾向にある。またこの時
1重合率が50X以上進行したのち単量体[B)の残量
を添加し。
This is a preferred method because it allows a resin with a high heat distortion temperature and high impact resistance to be obtained. It is preferable to initially polymerize the monomer (B) in a range of 5 to 30% by weight; if it is less than 5% by weight, there is no difference from polymerizing the entire amount in one step, and if it exceeds 30% by weight, the monomer (B) The effect of improving impact resistance and improving heat distortion temperature by adding CB) in portions and polymerizing tends to decrease. At this time, after the polymerization rate has progressed to 50X or more, the remaining amount of monomer [B) is added.

重合させるのが好ましい。重合率50%未満では熱変形
温度、耐衝撃性の向上効果が少なくなる傾向がある。
Preferably, it is polymerized. If the polymerization rate is less than 50%, the effect of improving heat distortion temperature and impact resistance tends to decrease.

第一段目および第二段目に分割して使用される単量体(
BAFi、それぞれ 芳香族ビニル化合物   0〜100重f%メタクリル
酸エステル  0〜100重量%および シアン化ビニル化合物  0〜40重量%であジ、かつ
全体が100重奮%になるような割合で使用されるのが
好ましい。
Monomers used separately in the first and second stages (
BAFi, aromatic vinyl compound 0 to 100% by weight, methacrylic acid ester 0 to 100% by weight and vinyl cyanide compound 0 to 40% by weight, respectively, and used in proportions such that the total is 100% by weight. It is preferable to

次に熱可塑性樹脂(n)について説明する。Next, the thermoplastic resin (n) will be explained.

これに用いられる炭素原子数5〜22個の脂環式炭化水
素基を有するメタクリル酸エステルとしては、メタクリ
ル酸ノルボニル、メタクリル酸ノルゲニルメチル、メタ
クリル酸トリシクロ〔541、0’−’ 1デカ−8−
イル、メタクリル酸トリゾクa [s、zt、o”]]
デ1y−3−ifル、 メタクリル酸トリシクロ[5,
Zl、0”・1〕デカ−4−メチル等が好ましい。
Examples of the methacrylic acid ester having an alicyclic hydrocarbon group having 5 to 22 carbon atoms include norbornyl methacrylate, norgenylmethyl methacrylate, and tricyclo[541,0'-'1deca-8-
il, Trizoc methacrylate a [s, zt, o”]]
tricyclo methacrylate [5,
Zl, 0''.1]deca-4-methyl and the like are preferred.

なお、メタクリル酸エステルの脂環式炭化水素基の炭素
数が22を超えると相溶性に劣る。またこれらメタクリ
ル酸エステルと共重合可能な他の重合性単量体としては
、不飽和脂肪酸エステル。
Note that if the number of carbon atoms in the alicyclic hydrocarbon group of the methacrylic ester exceeds 22, the compatibility will be poor. Other polymerizable monomers that can be copolymerized with these methacrylic acid esters include unsaturated fatty acid esters.

芳香族ビニル化合物、シアン化ビニル化合物があり、こ
れらの一種または二種以上が使用される。
There are aromatic vinyl compounds and vinyl cyanide compounds, and one or more of these may be used.

不飽和脂肪酸エステルとしては、アクリル散メチル、ア
クリル酸エチル、アクリル酸ブチル、アクリル酸2−エ
チルヘキシル等のアクリル酸アルキルエステル、アクリ
ル酸シクロヘキシル、アクリル酸メチルシクロヘキシル
、アクリル酸ボルニル、アクリル酸インボルニル、アク
リル酸アダマンチル等のアクリル酸シクロアルキルエス
テル。
Examples of unsaturated fatty acid esters include acrylic acid alkyl esters such as methyl acrylic powder, ethyl acrylate, butyl acrylate, and 2-ethylhexyl acrylate, cyclohexyl acrylate, methylcyclohexyl acrylate, bornyl acrylate, inbornyl acrylate, and acrylic acid. Acrylic acid cycloalkyl esters such as adamantyl.

メタクリル酸エステルとしてはメタクリル酸メチル、メ
タクリル酸エチル、メタクリル酸ブチル。
Examples of methacrylic acid esters include methyl methacrylate, ethyl methacrylate, and butyl methacrylate.

メタクリル酸2−エチルヘキシル等のメタクリル酸アル
キルエステル、メタクリル酸フェニル、メタクリル酸ベ
ンジル、メタクリル酸ナフチル等のメタクリル酸芳香族
エステル、メタクリル買フルオロメチル、メタクリル酸
フルオロエチル、メタクリル酸クロロエチル、メタクリ
ル醗ブロモエチル等のメタクリル酸ハロゲン化アルキル
エステル等がある。
Alkyl methacrylates such as 2-ethylhexyl methacrylate, aromatic esters of methacrylic acid such as phenyl methacrylate, benzyl methacrylate, naphthyl methacrylate, fluoromethyl methacrylate, fluoroethyl methacrylate, chloroethyl methacrylate, bromoethyl methacrylate, etc. Examples include methacrylic acid halogenated alkyl esters.

芳香族ビニル化合物としては、スチレン、α−メチルス
チレン、α−エチルスチレン、α−フルオロスチレン、
α−クロロスチレン、フルオロスチレン、クロロスチレ
ン、ブロモスチレン、メチルスチレン、ブチルスチレン
等がある。
Examples of aromatic vinyl compounds include styrene, α-methylstyrene, α-ethylstyrene, α-fluorostyrene,
Examples include α-chlorostyrene, fluorostyrene, chlorostyrene, bromostyrene, methylstyrene, butylstyrene, and the like.

シアン化ビニル化合物としては、アクリロニトリル、メ
タクリロニトリル等がある。
Examples of vinyl cyanide compounds include acrylonitrile and methacrylonitrile.

炭素原子数5〜22個の脂環式炭化水素基を有するメタ
クリル酸エステルは、20〜100重量%配合されるが
、20重量%未満では耐傷付き性の向上が顕著でない。
The methacrylic acid ester having an alicyclic hydrocarbon group having 5 to 22 carbon atoms is blended in an amount of 20 to 100% by weight, but if it is less than 20% by weight, the scratch resistance is not significantly improved.

熱可塑性樹脂(n)の製造は、乳化重合、懸濁重合。The thermoplastic resin (n) is manufactured by emulsion polymerization or suspension polymerization.

溶液重合等公知の重合法により行なうことができる。This can be carried out by a known polymerization method such as solution polymerization.

次に熱可塑性樹脂(II[)について説明する。Next, the thermoplastic resin (II[) will be explained.

熱可塑性樹脂(IN)は、芳香族ビニル化合物65〜8
5重量%、好ましくは70〜80重量%及びシアン化ビ
ニル化合物15〜25重量%、好ましくは20〜30重
量%を重合させて得られるが、ここで芳香族ビニル化合
物が70重量%未満では流動性が悪くなり、一方80重
量Xを超えると耐衝撃性、熱変形温度が低下する。芳香
族ビニル化合物及びシアン化ビニル化合物としては、前
記熱可塑性樹脂(II)の説明で挙げたものが使用でき
る。
The thermoplastic resin (IN) is an aromatic vinyl compound 65-8
It is obtained by polymerizing 5% by weight, preferably 70 to 80% by weight and 15 to 25% by weight, preferably 20 to 30% by weight of a vinyl cyanide compound, but if the aromatic vinyl compound is less than 70% by weight, it will not flow. On the other hand, if it exceeds 80 weight X, impact resistance and heat distortion temperature decrease. As the aromatic vinyl compound and vinyl cyanide compound, those mentioned in the description of the thermoplastic resin (II) can be used.

その他のビニル単量体を併用する場合には、これも含め
た量が100重量%となるように配合さる。
When other vinyl monomers are used together, they are blended in such a way that the amount including these is 100% by weight.

また、必要に応じてその他のビニル単量体を0〜20重
量%併用することもできる。必要に応じて使用できるそ
の他のビニル単量体としては、メチルアクリル醒エステ
ル、エチルアクリル散エステル等のアクリル酸エステル
、アクリル酸、メタクリル[8のビニルカルボン酸、マ
レイミド、Nメチルマレイミド、N−エチルマレイミド
、N−ブチルマンイミド、N−シクロへキシルマレイミ
)”、N−フェニルマ1/イミド等のマレイミド系単量
体、アクリル酸アミド、メタクリル酸アミド等があげら
れる。
Moreover, 0 to 20% by weight of other vinyl monomers can also be used in combination, if necessary. Other vinyl monomers that can be used as necessary include acrylic acid esters such as methyl acrylic ester and ethyl acrylic powder, acrylic acid, methacrylic [8] vinyl carboxylic acid, maleimide, N-methylmaleimide, N-ethyl Examples include maleimide monomers such as maleimide, N-butylmanimide, N-cyclohexylmaleimide, N-phenylmanimide, acrylamide, methacrylicamide, and the like.

熱可塑性樹脂(III)の製造は、乳化重合、!!!!
濁重合。
The thermoplastic resin (III) is produced by emulsion polymerization! ! ! !
Turbid polymerization.

溶液重合等公知の重合法により行なうことができる。This can be carried out by a known polymerization method such as solution polymerization.

本発明において9以上説明した熱可塑性樹脂(1)。Thermoplastic resin (1) described above in the present invention.

(II)及び(I)(以下、各々単に(I)成分、(■
)成分、 (III)成分とする)は、(I)成分20
〜90重量部、(■)成分5〜40重量部、 (lit
)成分5〜40重量部を9合計が100重量部となるよ
うに配合して混合物とする。
(II) and (I) (hereinafter each simply the (I) component, (■
) component, (III) component) is (I) component 20
~90 parts by weight, (■) component 5-40 parts by weight, (lit
) A mixture is prepared by blending 5 to 40 parts by weight of the components so that the total of the 9 components is 100 parts by weight.

ここで、(1)成分及び(III)成分のいずれかがこ
の範囲外であれば得られる組成物は、耐熱性9耐衝撃性
等に劣る。また、(■)成分が5重を部未満では得られ
る樹脂組成物の耐傷付き性が低下し、40重量部を超え
ると得られる樹脂組成司の耐衝撃性及び熱変形温度が低
下する。
Here, if either component (1) or component (III) is outside this range, the resulting composition will be inferior in heat resistance, impact resistance, etc. Furthermore, if the component (■) is less than 5 parts by weight, the scratch resistance of the resulting resin composition will be reduced, and if it exceeds 40 parts by weight, the impact resistance and heat distortion temperature of the resulting resin composition will be reduced.

なお、(■)成分は、好ましくは20〜40重量部配合
される。
Note that the component (■) is preferably blended in an amount of 20 to 40 parts by weight.

さらに1本発明においては、25℃における粘度が10
00〜30000センチストークス(C8)のジメチル
ポリシロキサンオイルが混合される。
Furthermore, in the present invention, the viscosity at 25°C is 10
00 to 30,000 centistokes (C8) dimethylpolysiloxane oil is mixed.

ジメチルポリシロキサンオイルの混合量は前記熱可塑性
樹脂の混合物に対して0.1〜1011量%である。0
.1重量%未満では耐傷付き性向上の効果がなく、ま九
10重量Xを超えると耐衝撃性が低下する。好ましくは
0.3〜3重量%である。またジメチルポリシロキサン
オイルの粘度は1000〜30000センチストークス
(C8)のものである。1000センチストークス(C
8’)未満では耐傷付き性の効果が低下する。また30
000センチストークス(C8)を超えると樹脂との相
容性が低下し、耐傷付き性の効果が低下する。
The amount of dimethylpolysiloxane oil mixed is 0.1 to 1011% by weight based on the thermoplastic resin mixture. 0
.. If it is less than 1% by weight, there is no effect of improving scratch resistance, and if it exceeds 10% by weight, impact resistance will decrease. Preferably it is 0.3 to 3% by weight. The viscosity of the dimethylpolysiloxane oil is 1,000 to 30,000 centistokes (C8). 1000 centistokes (C
If it is less than 8'), the scratch resistance effect will decrease. 30 again
If it exceeds 000 centistokes (C8), the compatibility with the resin decreases, and the scratch resistance effect decreases.

本発明の耐傷付き性の改良された耐候性樹脂組成物は9
以上の各成分を常法により混合して得られる。
The weather-resistant resin composition of the present invention with improved scratch resistance is 9
It can be obtained by mixing the above components in a conventional manner.

ま几、成形材料として使用する場合は1通常のフェノー
ル系酸化防止剤、成形加工性の向上から滑剤、紫外線吸
収剤等の安定化剤を併用することも可能である。
When used as a molding material, it is also possible to use a usual phenolic antioxidant, a lubricant to improve molding processability, a stabilizer such as an ultraviolet absorber, etc.

得られる樹脂組成物は、射出成形等公知の成形法により
成形され、各種成形品とされる。得られる成形品は、自
動車部品、屋外用等として優れた特性を示す。
The resulting resin composition is molded by a known molding method such as injection molding into various molded products. The resulting molded product exhibits excellent properties for use as automobile parts, outdoor use, etc.

(実施例) 次に実施例によって本発明をさらに具体的に説明するが
1本発明はこれらに制限されるものではなり0なお、以
下の実施例および比較例において「部」および「%」は
1%に断らない限シ、それぞれ「重量部」および「重量
%」を意味する。
(Example) Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these. In addition, in the following Examples and Comparative Examples, "part" and "%" are 1% means "part by weight" and "% by weight", respectively, unless otherwise specified.

(1)  アクリル系グラフト重合体ゴム因の製造内容
積41の攪拌機付き反応容器中にポリブタジェンラテッ
クス(住友ノーガタック■製、5N−800)300部
および均一に溶解した脂肪酸カリウム8部、亜硫酸ナト
リウム0.09部、イオン交換水2000部を仕込み混
合攪拌したのち。
(1) Production of acrylic graft polymer rubber 300 parts of polybutadiene latex (manufactured by Sumitomo Naugatac, 5N-800), 8 parts of fatty acid potassium uniformly dissolved, and sulfurous acid were placed in a reaction vessel with an internal volume of 41 cm and equipped with a stirrer. After 0.09 parts of sodium and 2000 parts of ion-exchanged water were mixed and stirred.

均一に溶解したアクリル酸ブチル700m、)ジアリル
イソシアヌレート14部を添加する。この乳化溶液を窒
素置換し、その後側の容器に用意しておいた過硫酸カリ
ウム0.5部とイオン交換水300部の水容液を添加混
合して60〜65℃に昇温した。重合は60〜65℃で
約3時間行ない。
Add 700 m of butyl acrylate, 14 parts of diallylisocyanurate, homogeneously dissolved. This emulsified solution was purged with nitrogen, and an aqueous solution of 0.5 parts of potassium persulfate and 300 parts of ion-exchanged water prepared in a container on the rear side was added and mixed, and the temperature was raised to 60 to 65°C. Polymerization is carried out at 60-65°C for about 3 hours.

冷却して重合を停止させた。この時の重合率は71%で
あった。
Polymerization was stopped by cooling. The polymerization rate at this time was 71%.

(2)熱可塑性樹脂(I)の乳化重合 内容積41の攪拌機付き反応容器中に(1)で製造した
アクリル系ゴム重合体(A)400部にラウリル硫酸ナ
トリウム1部、脂肪酸カリウム5部およびイオン交換水
650部を均一に溶解する。これに均一に溶解したキュ
メンハイドロパーオキサイド0.25部、アクリロニト
リル23部、スチレン47部を混合、攪拌しながら添加
し、窒素置換し。
(2) Emulsion polymerization of thermoplastic resin (I) 400 parts of the acrylic rubber polymer (A) produced in (1), 1 part of sodium lauryl sulfate, 5 parts of potassium fatty acid and Uniformly dissolve 650 parts of ion-exchanged water. To this, 0.25 parts of cumene hydroperoxide, 23 parts of acrylonitrile, and 47 parts of styrene uniformly dissolved were added while stirring and the mixture was replaced with nitrogen.

その後ナトリウムホルムアルデヒドスルホキシレート3
部をイオン交換水70部に溶解したものを添加して65
℃に昇温し、約1時間保温し9重合率を70%にする。
Then sodium formaldehyde sulfoxylate 3
65 parts dissolved in 70 parts of ion-exchanged water.
The temperature was raised to ℃ and kept for about 1 hour to bring the polymerization rate to 70%.

その量刑の3個の容器を用意しておき、1個めの容器に
は炭酸カリウム7部とイオン交換水60部を入れ、2個
めの容器ては脂肪酸カリウム10部とイオン交換水45
0部を入れ、3個めの容器にはキュメンハイドロパーオ
キサイド1.5部、ターシャリドデシルメルカプタン1
.7部、アクリロニトリル150部およびスチレン38
0部を入れ、それぞれ溶解しておく。その後この3個の
溶液を混合し、約2時間かけて反応容器内に滴下し65
℃で重合させる。65℃で約5時間重合させ重合率が8
5〜90%になった所で過硫酸カリウム1.2部をイオ
ン交換水50部に溶解した水溶液を添加して1重合温度
を80℃に昇温しで約2時間重合させて重合を完結させ
る。
Prepare three containers for this purpose, and in the first container, put 7 parts of potassium carbonate and 60 parts of ion-exchanged water, and in the second container, put 10 parts of fatty acid potassium and 45 parts of ion-exchanged water.
In the third container, add 1.5 parts of cumene hydroperoxide and 1 part of tertiary dodecyl mercaptan.
.. 7 parts, 150 parts of acrylonitrile and 38 parts of styrene
Add 0 parts and dissolve each. After that, these three solutions were mixed and dropped into the reaction container over about 2 hours.
Polymerize at °C. Polymerization was carried out at 65℃ for about 5 hours until the polymerization rate was 8.
When the concentration reached 5 to 90%, an aqueous solution of 1.2 parts of potassium persulfate dissolved in 50 parts of ion-exchanged water was added, and the polymerization temperature was raised to 80°C for about 2 hours to complete the polymerization. let

この時の重合率は98%であった。ここで得られたラテ
ックス状の反応溶液をカリミョウバンtg解した熱水中
で塩析し、脱水乾燥して粉末状の熱可塑性樹脂(I)を
得た。
The polymerization rate at this time was 98%. The latex-like reaction solution obtained here was salted out in hot water containing tg of potassium alum, and dehydrated and dried to obtain a powdery thermoplastic resin (I).

(3)熱可塑性樹脂(■)(メタクリル酸エステル共重
合体)の製造 内容積41の攪拌機およびコンデンサーを備えたセパラ
ブルフラスコに塩基性リン酸カルシウム10%水溶液4
2部およびドデシルベンゼンスルホン酸ナトリウム0.
002部、硫酸ナトリウム0.5部、イオン交換水12
00部を入れ攪拌混合して懸濁媒体とした。これに、過
酸化ラウロイル4部およびn−オクチルメルカプタン1
部を溶解したメタクリル酸トリシクロ(5,Zl、02
,6〕デカ−8−イル300部およびメタクリル酸メチ
ル700部を加え攪拌し窒素雰囲気下で60℃3時間重
合後重合℃で4時間重合させて得られた重合体粒子を水
洗、脱水、乾燥して熱可塑性樹脂(U)(メタクリル酸
エステル共重合体粒子)を得た。
(3) Production of thermoplastic resin (■) (methacrylic acid ester copolymer) A 10% aqueous solution of basic calcium phosphate in a separable flask equipped with a stirrer and a condenser with an internal volume of 41
2 parts and 0.0 parts sodium dodecylbenzenesulfonate.
002 parts, sodium sulfate 0.5 parts, ion exchange water 12
00 parts were added and mixed with stirring to prepare a suspension medium. To this are added 4 parts of lauroyl peroxide and 1 part of n-octyl mercaptan.
Tricyclomethacrylate (5, Zl, 02
, 6] Add 300 parts of dec-8-yl and 700 parts of methyl methacrylate, stir, and polymerize at 60°C for 3 hours under a nitrogen atmosphere. Polymerization The polymer particles obtained by polymerizing at °C for 4 hours are washed with water, dehydrated, and dried. A thermoplastic resin (U) (methacrylic acid ester copolymer particles) was obtained.

(4)熱可塑性樹脂(■)(芳香族系共重合体)の製造
内容積41の攪拌機付き反応容器に塩基性リン酸カルシ
ウム10%水溶液30部、ドデシルベンゼンスルホン酸
ソーダ0.5部およびイオン交換水1200部を入れ攪
拌する。これに均一に溶解したスチレン740部、アク
リロニトリル260部。
(4) Production of thermoplastic resin (■) (aromatic copolymer) Place 30 parts of a 10% aqueous basic calcium phosphate solution, 0.5 part of sodium dodecylbenzenesulfonate, and ion-exchanged water in a reaction vessel with an internal volume of 41 and equipped with a stirrer. Add 1200 parts and stir. 740 parts of styrene and 260 parts of acrylonitrile were uniformly dissolved in this.

過酸化ラウロイル5部、ターシャリドデシルメルカプタ
ン3部およびビスーターシャリブチルパーオギシシクa
ヘキサン0.55部を添加して65℃10時間、その後
105℃で2時間重合して重合を完結した。この時の重
合率は98%であった。
5 parts lauroyl peroxide, 3 parts tert-dodecyl mercaptan and bis-tertiary butyl peroxide a
After adding 0.55 parts of hexane, the mixture was polymerized at 65° C. for 10 hours, and then at 105° C. for 2 hours to complete the polymerization. The polymerization rate at this time was 98%.

ここで得られた重合体粒子を水洗、脱水、乾燥して熱可
塑性樹脂(ffi (芳香族系共重合体粒子)を得た。
The polymer particles obtained here were washed with water, dehydrated, and dried to obtain a thermoplastic resin (ffi (aromatic copolymer particles)).

実施例1 前記製造法で得た熱可塑性樹脂(I) 500部、熱可
塑性樹脂(N) 200部及び熱可塑性樹脂(III)
 300部の混合物に25℃における粘度が10000
センチストークス(C8)のジメチルポリシロキサンオ
イルを10部混合し、他にカーボッ3部ト安定剤(ヒン
ダードフェノール系醸化防止剤、ヒンダードアミン系光
安定剤及びベンゾトリアゾール系紫外線吸収剤よりなる
)5部を混合したものを39 mmφ押出機で押出しペ
レット状にした。
Example 1 500 parts of thermoplastic resin (I) obtained by the above manufacturing method, 200 parts of thermoplastic resin (N), and thermoplastic resin (III)
300 parts of the mixture has a viscosity of 10,000 at 25°C.
Mix 10 parts of centistokes (C8) dimethylpolysiloxane oil, and 3 parts of carb stabilizer (consisting of a hindered phenol-based fermentation inhibitor, a hindered amine-based light stabilizer, and a benzotriazole-based ultraviolet absorber) 5 The mixture was extruded into pellets using a 39 mmφ extruder.

このペレットを用いて射出成形機でASTMに記載され
る所定の成形品(試験片)を作成し。
Using this pellet, a predetermined molded product (test piece) as specified in ASTM was created using an injection molding machine.

この試験片を用いて耐傷付き性試験及び機械的特性を評
価した。その結果を第1表に示す。
This test piece was used to evaluate scratch resistance and mechanical properties. The results are shown in Table 1.

評価方法 耐傷付き性試験:300Wlの高さより120メツシユ
スルーの砂を成形品に連続して3分落下させ、その後エ
チルアルコールに浸シたガーゼで表面を軽くふきとりそ
の時の傷の付き方を目視判定した(■傷付きなし、■多
少傷付きあす、■全面に傷発生)。
Evaluation method Scratch resistance test: 120 mesh through sand was continuously dropped on the molded product from a height of 300 Wl for 3 minutes, and then the surface was lightly wiped with gauze soaked in ethyl alcohol and the extent of scratches was visually judged. (■ No scratches, ■ Some scratches, ■ Scratches on the entire surface).

アイゾツト衝撃強さ:ASTM D256に従いl/♂
ノツチ付で測定した。
Izot impact strength: l/♂ according to ASTM D256
Measured with a notch.

熱変形温度:ASTM  D648に従い1/2’。Heat distortion temperature: 1/2' according to ASTM D648.

264 Psiで耐熱性を測定した。Heat resistance was measured at 264 Psi.

メルトフローレート:JIS K 7310に従い22
0℃ 10に9で流動性を測定した。
Melt flow rate: 22 according to JIS K 7310
Fluidity was measured at 0°C and 9 to 10.

表面光沢:サンシャインウェザ−メータによる耐候性促
進試験を行ない、それぞno、600゜1000.20
00時間照射後の成形品の表面光沢(反射率)をグロス
メーターを用い。
Surface gloss: accelerated weather resistance test using sunshine weather meter, no, 600° 1000.20 respectively
Measure the surface gloss (reflectance) of the molded product after 00 hours of irradiation using a gloss meter.

入射角60°1反射角60°で測定した。Measurements were made at an incident angle of 60° and a reflection angle of 60°.

実施例2〜4 25℃における粘度が10000センチストークス(C
8)のジメチルポリシロキサンオイル3部、15部、3
0部混合する他は実施例1と同様にして試験片を作成し
評価し文。
Examples 2 to 4 Viscosity at 25°C is 10,000 centistokes (C
8) dimethylpolysiloxane oil 3 parts, 15 parts, 3
Test pieces were prepared and evaluated in the same manner as in Example 1, except that 0 parts were mixed.

比較例1.2 比較例1idジメチルポリシロキサンオイルti合しな
い場合、比較例2は25℃における粘度が10000C
8のジメチルポリシロキサンオイルを20部混合した他
は実施例1と同様にして試験片を作成し、評価した。そ
の結果を、@1表に示す。
Comparative Example 1.2 Comparative Example 1id If dimethylpolysiloxane oil ti is not combined, Comparative Example 2 has a viscosity of 10000C at 25°C.
A test piece was prepared and evaluated in the same manner as in Example 1, except that 20 parts of dimethylpolysiloxane oil No. 8 was mixed therein. The results are shown in Table @1.

実施例5〜7 25℃における粘度が1000センチストークス(C8
)、5000センチストークス(C8)。
Examples 5 to 7 Viscosity at 25°C is 1000 centistokes (C8
), 5000 centistokes (C8).

12500センチストークス(C8)のジメチルポリシ
ロキサンオイルを1温湿合する他は実施例1と同様にし
て試験片を作成し評価した。その結果を第2表に示す。
A test piece was prepared and evaluated in the same manner as in Example 1, except that dimethylpolysiloxane oil of 12,500 centistokes (C8) was wetted at one temperature. The results are shown in Table 2.

比較例3〜5 25℃における粘度が100センチストークス(C8)
、500センチストークス(C8)。
Comparative Examples 3 to 5 Viscosity at 25°C is 100 centistokes (C8)
, 500 centistokes (C8).

60000センチストークス(C8)のジメチルポリシ
ロキサンオイルを1温湿合した他は実施例1と同様にし
て試験片を作成し評価した。その結果を第2表に示す。
A test piece was prepared and evaluated in the same manner as in Example 1, except that dimethylpolysiloxane oil of 60,000 centistokes (C8) was wetted at one temperature. The results are shown in Table 2.

実施例8 熱可塑性樹脂(I) 500部、熱可塑性樹脂(It)
300部及び熱可塑性樹脂(III) 200部を混合
した他は実施例1と同様にして試験片を作成し評価した
。その結果を第3表に示す。
Example 8 500 parts of thermoplastic resin (I), thermoplastic resin (It)
A test piece was prepared and evaluated in the same manner as in Example 1, except that 300 parts of the thermoplastic resin (III) and 200 parts of the thermoplastic resin (III) were mixed. The results are shown in Table 3.

実施例9 熱可塑性樹脂(I) 500部、熱可塑性樹脂(II)
400部及び熱可塑性樹脂(ill)100部を混合し
た他は実施例1と同様にして試験片を作成し評価した。
Example 9 500 parts of thermoplastic resin (I), thermoplastic resin (II)
A test piece was prepared and evaluated in the same manner as in Example 1, except that 400 parts of the thermoplastic resin (ill) and 100 parts of the thermoplastic resin (ill) were mixed.

その結果を第3表に示す。The results are shown in Table 3.

比較例6 熱可塑性樹脂(Ij 500部、熱可塑性樹脂(Ir1
500部を混合した他は実施例1と同様にして試験片を
作成し評価した。その結果を第3表に示す。
Comparative Example 6 Thermoplastic resin (Ij 500 parts, thermoplastic resin (Ir1
Test pieces were prepared and evaluated in the same manner as in Example 1, except that 500 parts were mixed. The results are shown in Table 3.

第 表 (発明の効果) 本発明の耐候性樹脂組成物は、耐衝重性、成形性、耐熱
性、成形品外観及び耐候性が浸れており。
Table 1 (Effects of the Invention) The weather-resistant resin composition of the present invention is excellent in impact resistance, moldability, heat resistance, molded product appearance, and weather resistance.

加えて特に成形品の傷付き性が優れているので自動車部
品用や屋外で使用される用途の成形品に最適である。
In addition, molded products have excellent scratch resistance, making them ideal for molded products used in automobile parts and outdoors.

Claims (1)

【特許請求の範囲】 1、多官能性単量体0.1〜20重量%、炭素数1〜1
30アルキル基を有するアクリル酸エステル50〜99
.9重量%及び共重合可能な他のビニル化合物0〜30
重量%を配合して得られる重合性単量体混合物(a)9
5〜60重量部をジエン系重合体(b)5〜40重量部
の存在下に、(a)と(b)の合計が100重量部とな
るように配合し、重合率が50〜93%まで乳化重合さ
せた後、重合を停止させて得られるグラフト重合体ゴム
(A)5〜50重量部の存在下に、芳香族ビニル化合物
0〜100重量%メタクリル酸エステル0〜100重量
%及びシアン化ビニル化合物0〜40重量%からなる単
量体(B)95〜50重量部を、(A)と(B)の合計
が100重量部となるように配合し、重合させて得られ
る熱可塑性樹脂(1)20〜90重量部、炭素原子数5
〜22個の脂環式炭化水素基を有するメタクリル酸エス
テル20〜100重量%及び共重合可能な他の重合性単
量体0〜80重量%を重合させて得られる熱可塑性樹脂
(II)5〜40重量部、並びに芳香族ビニル化合物65
〜85重量%及びシアン化ビニル化合物15〜35重量
%を重合させて得られる熱可塑性樹脂(III)5〜40
重量部を( I )、(II)及び(III)の合計が100重
量部となるように配合して得られる混合物に、25℃に
おける粘度が1000〜30000センチストークスの
ジメチルポリシロキサンオイルを該混合物に対して0.
1〜10重量%混合してなる耐傷付き性の改良された耐
候性樹脂組成物。 2、重合性単量体混合物(a)の多官能性単量体がトリ
アリルイソシアヌレートまたはトリアリルシアヌレート
である請求項1記載の耐候性樹脂組成物。 3、熱可塑性樹脂(II)の炭素原子数5〜22個の脂環
式炭化水素基を有するメタクリル酸エステルが、メタク
リル酸ノルボニル、メタクリル酸ノルボニルメチル、メ
タクリル酸トリシクロ〔5,2,1,0^2^,^6〕
デカ−8−イル、メタクリル酸トリシクロ〔5,2,1
,0^2^,^6〕デカ−3−メチル及びメタクリル酸
トリシクロ〔5,2,1,0^2^,^6〕デカ−4−
メチルから選択される少なくとも1種のメタクリル酸エ
ステルである請求項1または2記載の耐候性樹脂組成物
。 4、請求項1、2または3記載の耐候性樹脂組成物を用
いて成形して得られる成形品。
[Claims] 1. 0.1 to 20% by weight of polyfunctional monomer, 1 to 1 carbon number
Acrylic acid ester having 30 alkyl groups 50-99
.. 9% by weight and 0-30% of other copolymerizable vinyl compounds
Polymerizable monomer mixture (a) 9 obtained by blending % by weight
5 to 60 parts by weight of diene polymer (b) is blended in the presence of 5 to 40 parts by weight so that the total of (a) and (b) is 100 parts by weight, and the polymerization rate is 50 to 93%. In the presence of 5 to 50 parts by weight of the graft polymer rubber (A) obtained by emulsion polymerization until the polymerization is terminated, 0 to 100 parts by weight of an aromatic vinyl compound, 0 to 100 parts by weight of a methacrylic acid ester, and cyanide are added. A thermoplastic material obtained by blending 95 to 50 parts by weight of a monomer (B) consisting of 0 to 40 parts by weight of a vinyl compound so that the total of (A) and (B) is 100 parts by weight, and polymerizing the mixture. Resin (1) 20 to 90 parts by weight, number of carbon atoms 5
Thermoplastic resin (II) obtained by polymerizing 20 to 100% by weight of a methacrylic acid ester having ~22 alicyclic hydrocarbon groups and 0 to 80% by weight of another copolymerizable monomer (II) 5 ~40 parts by weight, and 65 parts by weight of aromatic vinyl compound
Thermoplastic resin (III) obtained by polymerizing ~85% by weight and 15-35% by weight of a vinyl cyanide compound 5-40
Add dimethylpolysiloxane oil having a viscosity of 1,000 to 30,000 centistokes at 25°C to a mixture obtained by blending parts by weight of (I), (II), and (III) so that the total is 100 parts by weight. 0.
A weather-resistant resin composition with improved scratch resistance formed by mixing 1 to 10% by weight. 2. The weather-resistant resin composition according to claim 1, wherein the polyfunctional monomer of the polymerizable monomer mixture (a) is triallyl isocyanurate or triallyl cyanurate. 3. The methacrylic acid ester having an alicyclic hydrocarbon group having 5 to 22 carbon atoms of the thermoplastic resin (II) can be used as norbornyl methacrylate, norbornylmethyl methacrylate, or tricyclo[5,2,1, 0^2^,^6〕
Dec-8-yl, tricyclo methacrylate [5,2,1
,0^2^,^6]deca-3-methyl and methacrylic acid tricyclo[5,2,1,0^2^,^6]deca-4-
The weather-resistant resin composition according to claim 1 or 2, which is at least one methacrylic ester selected from methyl. 4. A molded article obtained by molding the weather-resistant resin composition according to claim 1, 2 or 3.
JP15828490A 1990-06-15 1990-06-15 Weather-resistant resin composition having improved scratch resistance and molded article thereof Pending JPH0450252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15828490A JPH0450252A (en) 1990-06-15 1990-06-15 Weather-resistant resin composition having improved scratch resistance and molded article thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15828490A JPH0450252A (en) 1990-06-15 1990-06-15 Weather-resistant resin composition having improved scratch resistance and molded article thereof

Publications (1)

Publication Number Publication Date
JPH0450252A true JPH0450252A (en) 1992-02-19

Family

ID=15668235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15828490A Pending JPH0450252A (en) 1990-06-15 1990-06-15 Weather-resistant resin composition having improved scratch resistance and molded article thereof

Country Status (1)

Country Link
JP (1) JPH0450252A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010106095A (en) * 2008-10-29 2010-05-13 Mitsubishi Rayon Co Ltd Water-based coating material and production method of emulsion
CN112566977A (en) * 2018-06-18 2021-03-26 英力士苯领集团股份公司 Thermoplastic composition with improved resistance to ultraviolet light

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010106095A (en) * 2008-10-29 2010-05-13 Mitsubishi Rayon Co Ltd Water-based coating material and production method of emulsion
CN112566977A (en) * 2018-06-18 2021-03-26 英力士苯领集团股份公司 Thermoplastic composition with improved resistance to ultraviolet light
US11965066B2 (en) 2018-06-18 2024-04-23 Ineos Styrolution Group Gmbh Thermoplastic compositions with improved UV resistance

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