JPS62131056A - Polycarbonate resin composition - Google Patents
Polycarbonate resin compositionInfo
- Publication number
- JPS62131056A JPS62131056A JP27137285A JP27137285A JPS62131056A JP S62131056 A JPS62131056 A JP S62131056A JP 27137285 A JP27137285 A JP 27137285A JP 27137285 A JP27137285 A JP 27137285A JP S62131056 A JPS62131056 A JP S62131056A
- Authority
- JP
- Japan
- Prior art keywords
- polycarbonate resin
- resin composition
- acrylic resin
- weight
- present
- 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.)
- Granted
Links
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はポリカーボネート樹脂組成物に関し、詳しくは
表面硬度に優れ、かつ成形性に優れたポリカーボネート
樹脂組成物に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a polycarbonate resin composition, and more particularly to a polycarbonate resin composition that has excellent surface hardness and moldability.
〔従晶術及び発明が解決しようとする問題点〕近年、自
動車、家電等の分野では省エネルギーの観点から軽量化
が行なわれており、それに伴いガラスをプラスチックで
代替することが促進されている。このようなガラス代替
品としては、透明性１機械的特性２寸法安定性に優れて
いるという理由から、ポリカーボネート樹脂成形品が有
望視されている。しかしながら、このポリカーボネート
樹脂成形品は一般に表面硬度に欠けているという問題点
があった。したがって、外観保護の観点から使用するポ
リカーボネート樹脂成形品の表面を硬化させ、耐擦過性
等を向上させることが必要となる。[Problems to be solved by the conformal crystal technique and the invention] In recent years, in the fields of automobiles, home appliances, etc., weight reduction has been carried out from the viewpoint of energy conservation, and as a result, the replacement of glass with plastic has been promoted. Polycarbonate resin molded products are considered promising as such glass substitutes because they are excellent in transparency, mechanical properties, and dimensional stability. However, this polycarbonate resin molded article generally has a problem in that it lacks surface hardness. Therefore, from the viewpoint of protecting the appearance, it is necessary to harden the surface of the polycarbonate resin molded product used to improve scratch resistance and the like.
ポリカーボネート樹脂成形品の表面を硬化させる方法と
しては、各種のハードコート剤を塗布する方法や改質剤
をブレンドする方法が知られている。しかしながら、前
者ではポリカーボネート樹脂成形品に満足すべき表面硬
度を与えるハードコート剤が得られていないこと、成形
品の形状によっては表面処理が困難になること、該ハー
ドコート剤を塗布する工程が加わるため生産性に劣るこ
となどの問題点がある。一方、後者は簡便な方法である
が、充分な表面硬度を有する組成物は得られていない。As methods for hardening the surface of polycarbonate resin molded articles, methods of applying various hard coating agents and methods of blending modifiers are known. However, in the former case, a hard coating agent that gives satisfactory surface hardness to polycarbonate resin molded products is not available, surface treatment becomes difficult depending on the shape of the molded product, and the process of applying the hard coating agent is added. Therefore, there are problems such as poor productivity. On the other hand, although the latter is a simple method, a composition having sufficient surface hardness has not been obtained.
したがって、本発明はポリカーボネート樹脂本来の特性
である優れた透明性や機械的性質を維持しつつ、表面硬
度、成形性等と向上せしめたポリカーボネート樹脂組成
物を提供するものである。Therefore, the present invention provides a polycarbonate resin composition that maintains the excellent transparency and mechanical properties inherent to polycarbonate resin, while improving surface hardness, moldability, etc.
た結果、特定のアクリル樹脂を特定の割合でポリカーボ
ネート樹脂に配合した樹脂組成物が極めて優れた特性を
有していることを見出し、本発明を完成した。As a result, they discovered that a resin composition in which a specific acrylic resin was blended with a polycarbonate resin in a specific ratio had extremely excellent properties, and the present invention was completed.
すなわち本発明は、ポリカーボネート樹脂７０〜９８重
量％および数平均分子量１．０００〜１０．０００のア
クリル樹脂３０〜２重量％からなるポリカーボネート樹
脂組成物を提供するものである。That is, the present invention provides a polycarbonate resin composition comprising 70 to 98% by weight of a polycarbonate resin and 30 to 2% by weight of an acrylic resin having a number average molecular weight of 1.000 to 10.000.
本発明で用いるポリカーボネート樹脂は下記一般式
％式％（）
（ここで、２は結合または炭素数１〜８のアルキレン、
炭素数２〜８のアルキリデン、炭素数５〜１５のシクロ
アルキレン、炭素数５〜１５のシクロアルキリデン、Ｓ
Ｏ□、ｓｏ、ｏ、ｃｏまたは基を意味し、Ｒは水素、塩
素もしくは臭素原子または１〜８個の炭素原子を有する
飽和アルキル基を意味し、ｍはθ〜４の数を示す。）
で表わされる構造単位を有する重合体である。The polycarbonate resin used in the present invention has the following general formula % formula % () (where 2 is a bond or an alkylene having 1 to 8 carbon atoms,
Alkylidene having 2 to 8 carbon atoms, cycloalkylene having 5 to 15 carbon atoms, cycloalkylidene having 5 to 15 carbon atoms, S
O□, so, o, co or a group, R means a hydrogen, chlorine or bromine atom or a saturated alkyl group having 1 to 8 carbon atoms, and m represents a number of θ to 4. ) It is a polymer having a structural unit represented by:
このポリカーボネート樹脂は溶剤法、すなわち塩化メチ
レン等の溶剤中で公知の酸受容体１分子量ｉ調整剤の存
在下、二価フェノールとホスゲンのようなカーボネート
前駆体との反応または二価フェノールとジフェニルカー
ボネートのようなカーボネート前駆体とのエステル交換
反応によって製造することができる。This polycarbonate resin is prepared by a solvent process, i.e. by the reaction of a dihydric phenol with a carbonate precursor such as phosgene or by the reaction of a dihydric phenol with a carbonate precursor such as phosgene in the presence of a known acid acceptor molecular weight regulator in a solvent such as methylene chloride. It can be produced by transesterification reaction with carbonate precursors such as.
ここで、好適に使用し得る二価フェノールとしてはビス
フェノール類があり、特に２．２−ビス（４−ヒドロキ
シフェニル）プロパン（ビスフェノールＡ）が好ましい
。また、ビスフェノールＡの一部または全部を他の二価
フェノールで置換したものであってもよい。ビスフェノ
ールＡ以外の二価フェノールとしては、例えばハイドロ
キノン、４．４゛−ジヒドロキシジフェニル、ビス（４
−ヒドロキシフェニル）アルカン、ビス（４−ヒドロキ
シフェニル）シクロアルカン、ビス（４−ヒドロキシフ
ェニル）スルフィド、ビス（４−ヒドロキシフェニル）
スルホン、ビス（４−ヒドロキシフェニル）スルホキシ
ド、ビス（４−ヒドロキシフェニル）エーテルのような
化合物またはビス（３，５−ジブロモ−４−ヒドロキシ
フェニル）プロパン、ビス（３，５−ジクロロ−４−ヒ
ドロキシフェニル）プロパンのようなハロゲン化ヒスフ
ェノール類をあげることができる。これら二価フェノー
ルは二価フェノールのホモポリマーまたは２種以上のコ
ポリマー若しくはブレンド物であってもよい。更に、本
発明で用いるポリカーボネート樹脂は多官能性芳香族化
合物を二価フェノールおよび／またはカーボネート前駆
体と反応させた熱可塑性ランダム分岐ポリカーボネート
であってもよい。Here, dihydric phenols that can be suitably used include bisphenols, and 2,2-bis(4-hydroxyphenyl)propane (bisphenol A) is particularly preferred. Further, part or all of bisphenol A may be substituted with other dihydric phenol. Examples of dihydric phenols other than bisphenol A include hydroquinone, 4.4'-dihydroxydiphenyl, bis(4
-hydroxyphenyl)alkane, bis(4-hydroxyphenyl)cycloalkane, bis(4-hydroxyphenyl)sulfide, bis(4-hydroxyphenyl)
Compounds such as sulfone, bis(4-hydroxyphenyl) sulfoxide, bis(4-hydroxyphenyl) ether or bis(3,5-dibromo-4-hydroxyphenyl)propane, bis(3,5-dichloro-4-hydroxy Examples include halogenated hisphenols such as (phenyl)propane. These dihydric phenols may be homopolymers or copolymers or blends of two or more dihydric phenols. Furthermore, the polycarbonate resin used in the present invention may be a thermoplastic randomly branched polycarbonate obtained by reacting a polyfunctional aromatic compound with a dihydric phenol and/or a carbonate precursor.
本発明に用いるポリカーボネート樹脂は、機械的強度お
よび成形性の点からして、その粘度平均分子量は１０，
０００〜１００，０００のものが好ましく、特に２０，
０００〜４０．０００のものが好適である。In terms of mechanical strength and moldability, the polycarbonate resin used in the present invention has a viscosity average molecular weight of 10,
000 to 100,000 is preferable, especially 20,
000 to 40.000 is suitable.
上記ポリカーボネート樹脂の配合割合は組成物全量の７
０〜９８重量％、好ましくは７５〜９５重量％とする。The blending ratio of the above polycarbonate resin is 7% of the total amount of the composition.
The content is 0 to 98% by weight, preferably 75 to 95% by weight.
本発明の樹脂組成物は、上記したポリカーボネート樹脂
に特定のアクリル樹脂を３０〜２重量％、好ましくは２
５〜５重量％配合して構成される。The resin composition of the present invention contains 30 to 2% by weight, preferably 2% by weight, of a specific acrylic resin in the above-mentioned polycarbonate resin.
It is composed of 5 to 5% by weight.
このアクリル樹脂の配合量が２重量％未満であると、樹
脂組成物の表面硬度が向上できず、また３０重量％を超
えると、樹脂組成物の透明性が低下するので適当ではな
い。If the amount of the acrylic resin is less than 2% by weight, the surface hardness of the resin composition cannot be improved, and if it exceeds 30% by weight, the transparency of the resin composition will decrease, which is not appropriate.
ここで用いるアクリル樹脂としては通常はアクリル酸エ
ステルまたはメタクリル酸エステルのホモポリマーまた
は２種以上のコポリマー若しくはブレンド物である。こ
のアクリル樹脂は、例えばアクリル酸メチル、アクリル
酸エチル、アクリル酸ブチル等のアクリル酸エステルや
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、メタクリル酸シクロヘキシル等のメタクリル
酸エステルを懸濁重合、乳化重合等により重合させて製
造することができる。これらのアクリル樹脂は、数平均
分子量が１，０００〜１０，０００、好ましくは２．
ＯＯＯ〜８． ＯＯＯの範囲のものでなければならない
。この分子量が１．０００未満であると、樹脂組成物の
表面硬度向上効果が小さくなり、１０．０００を超える
と、樹脂組成物の透明性が低下するため適当ではない。The acrylic resin used here is usually a homopolymer of acrylic ester or methacrylic ester, or a copolymer or blend of two or more of them. This acrylic resin is produced by suspension polymerization or emulsion polymerization of acrylic esters such as methyl acrylate, ethyl acrylate, and butyl acrylate, and methacrylic esters such as methyl methacrylate, ethyl methacrylate, butyl methacrylate, and cyclohexyl methacrylate. It can be produced by polymerization by et al. These acrylic resins have a number average molecular weight of 1,000 to 10,000, preferably 2.
OOO~8. Must be in the OOO range. If this molecular weight is less than 1.000, the effect of improving the surface hardness of the resin composition will be reduced, and if it exceeds 10.000, the transparency of the resin composition will decrease, which is not appropriate.
なお、本発明に用いるアクリル樹脂として最も好ましい
のは数平均分子量が２．０００〜８． Ｏ００のポリメ
チルメタクリレート樹脂（以下、ＰＭＭＡ樹脂と略記す
るごとがある。）である。The most preferable acrylic resin used in the present invention has a number average molecular weight of 2.000 to 8.00. O00 polymethyl methacrylate resin (hereinafter sometimes abbreviated as PMMA resin).
本発明のポリカーボネート樹脂組成物には、本発明の目
的を阻害しない限り、必要に応じて各種の添加剤を配合
することができる。たとえば亜すン酸エステル系、リン
酸エステル系の酸化防止剤やベンゾトリアゾール系、ベ
ンゾフェノン系の紫外線吸収剤、その他常用の種々の添
加剤を配合することができる。The polycarbonate resin composition of the present invention may contain various additives as necessary, as long as they do not impede the purpose of the present invention. For example, sulfite-based and phosphate-based antioxidants, benzotriazole-based and benzophenone-based ultraviolet absorbers, and various other commonly used additives can be blended.
本発明のポリカーボネート樹脂組成物は上記の各成分を
配合し、混練することにより得ることができる。配合、
混練は通常の方法を採用することができ、たとえばリボ
ンブレンダ、ヘンシェルミキサー、バンバリーミキサ−
、ドラムタンブラ−２車軸スクリユ一押出機、２軸スク
リュー押出機。The polycarbonate resin composition of the present invention can be obtained by blending and kneading the above-mentioned components. combination,
The kneading can be done using conventional methods, such as a ribbon blender, Henschel mixer, or Banbury mixer.
, drum tumbler-two-axle screw extruder, twin-screw extruder.
コニーダ、多軸スクリュー押出機等により行なうことが
できる。混練に際しての加熱温度は通常２５０〜３００
℃が適当である。This can be carried out using a co-kneader, multi-screw extruder, or the like. The heating temperature during kneading is usually 250 to 300
°C is appropriate.
かくして得られたポリカーボネート樹脂組成物は既知の
種々の成形方法、たとえば射出成形、押出成形、圧縮成
形、カレンダー成形１回転成形等を適用して自動車用ラ
ンプカバーなど自動車分野の成形品や家電分野等の成形
品を製造することができる。The polycarbonate resin composition thus obtained can be molded using various known molding methods, such as injection molding, extrusion molding, compression molding, single-turn calendar molding, etc., to molded products in the automotive field such as automobile lamp covers, home appliance fields, etc. molded products can be manufactured.
なお、本発明の樹脂組成物は成形後に、シリコーン系硬
化剤等を用いてハードコートする方法を併用することが
できる。The resin composition of the present invention may be hard-coated with a silicone curing agent or the like after being molded.
叙上の如き本発明のポリカーボネート樹脂組成物は従来
に比べて表面硬度が向上されており、しかもポリカーボ
ネート樹脂本来の優れた透明性。The polycarbonate resin composition of the present invention as described above has improved surface hardness compared to conventional ones, and also has the excellent transparency inherent to polycarbonate resin.
機械的特性が維持されている。さらに、流れ値（ＪＩＳ
Ｋ６７１９）で示される流動性に優れているため、
成形のしやすいものであり、耐候性にも優れている。Mechanical properties are maintained. Furthermore, the flow value (JIS
K6719) has excellent fluidity,
It is easy to mold and has excellent weather resistance.
したがって、本発明のポリカーボネート樹脂組成物はガ
ラスの代替品として各種分野で有用である。Therefore, the polycarbonate resin composition of the present invention is useful as a substitute for glass in various fields.
次に、本発明を実施例により詳しく説明する。 Next, the present invention will be explained in detail with reference to examples.
実施例１〜６および比較例１〜４
粘度平均分子量２４．５００のポリカーボネート樹脂（
出光石油化学（株製、「出光ポリカーボネート Ａ−２
５００Ｊ）および第１表に示す数平均分子量ｉ（Ｍｎ）
のポリメチルメタクリレート樹脂をそれぞ第１表に示す
割合で結合混練し、射出成形して試験片を作成した。こ
の試験片について物性を測定した。結果を第１表に示す
。なお、表中のＰＣ樹脂はポリカーボネート樹脂を示し
ている。Examples 1 to 6 and Comparative Examples 1 to 4 Polycarbonate resin with a viscosity average molecular weight of 24.500 (
Idemitsu Petrochemical Co., Ltd., “Idemitsu Polycarbonate A-2
500J) and number average molecular weight i (Mn) shown in Table 1.
Polymethyl methacrylate resins were combined and kneaded in the proportions shown in Table 1, and injection molded to prepare test pieces. The physical properties of this test piece were measured. The results are shown in Table 1. Note that the PC resin in the table indicates polycarbonate resin.
Claims (3)
平均分子量１，０００〜１０，０００のアクリル樹脂３
０〜２重量％からなるポリカーボネート樹脂組成物。(1) Polycarbonate resin 70-98% by weight and acrylic resin 3 with number average molecular weight 1,000-10,000
A polycarbonate resin composition consisting of 0 to 2% by weight.
０００である特許請求の範囲第１項記載の組成物。(2) The number average molecular weight of the acrylic resin is 2,000 to 8,
000. The composition according to claim 1, wherein the composition is:
特許請求の範囲第１項記載の組成物。(3) The composition according to claim 1, wherein the acrylic resin is polymethyl methacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27137285A JPS62131056A (en) | 1985-12-04 | 1985-12-04 | Polycarbonate resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27137285A JPS62131056A (en) | 1985-12-04 | 1985-12-04 | Polycarbonate resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62131056A true JPS62131056A (en) | 1987-06-13 |
| JPH0434573B2 JPH0434573B2 (en) | 1992-06-08 |
Family
ID=17499150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27137285A Granted JPS62131056A (en) | 1985-12-04 | 1985-12-04 | Polycarbonate resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62131056A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6111016A (en) * | 1997-07-23 | 2000-08-29 | Daicel Chemical Industries, Ltd. | Polycarbonate with epoxidized block copolymer |
| JP2008045141A (en) * | 2007-10-22 | 2008-02-28 | Idemitsu Kosan Co Ltd | Polycarbonate resin composition and light guiding plate |
| JP2011052236A (en) * | 2010-12-17 | 2011-03-17 | Mitsubishi Rayon Co Ltd | Hard-coated article |
| WO2015053145A1 (en) | 2013-10-07 | 2015-04-16 | 三菱瓦斯化学株式会社 | (meth)acrylic copolymer, resin composition, and molded product of said resin composition |
| KR20160138314A (en) | 2015-02-05 | 2016-12-02 | 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 | Polycarbonate resin composition and article molded therefrom |
| KR20170036663A (en) | 2014-10-10 | 2017-04-03 | 아사히 가세이 케미칼즈 가부시키가이샤 | Thermoplastic resin compositions, method for producing the same and molded body |
| KR20170100051A (en) | 2015-03-30 | 2017-09-01 | 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 | Resin composition and molded article using the same |
| KR20190055803A (en) | 2016-09-26 | 2019-05-23 | 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 | (Meth) acrylic copolymer, a resin composition, a molded article thereof, and a method for producing a molded article |
| CN111518378A (en) * | 2020-04-19 | 2020-08-11 | 东莞市骄阳塑胶科技有限公司 | Special transparent high-surface-hardness wear-resistant polycarbonate material and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6510188B2 (en) * | 2014-06-10 | 2019-05-08 | 帝人株式会社 | Resin composition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4880650A (en) * | 1972-01-03 | 1973-10-29 | ||
| JPS4886955A (en) * | 1972-01-24 | 1973-11-16 | ||
| JPS538732A (en) * | 1976-07-12 | 1978-01-26 | Toa Nenryo Kogyo Kk | Method of producing separator for battery |
| JPS5628937A (en) * | 1979-08-11 | 1981-03-23 | Seikou Kogyo Kk | Multishaft excavator |
-
1985
- 1985-12-04 JP JP27137285A patent/JPS62131056A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4880650A (en) * | 1972-01-03 | 1973-10-29 | ||
| JPS4886955A (en) * | 1972-01-24 | 1973-11-16 | ||
| JPS538732A (en) * | 1976-07-12 | 1978-01-26 | Toa Nenryo Kogyo Kk | Method of producing separator for battery |
| JPS5628937A (en) * | 1979-08-11 | 1981-03-23 | Seikou Kogyo Kk | Multishaft excavator |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6316579B1 (en) | 1997-07-23 | 2001-11-13 | Daicel Chemical Industries, Ltd. | Polycarbonate resin composition containing block copolymer |
| US6111016A (en) * | 1997-07-23 | 2000-08-29 | Daicel Chemical Industries, Ltd. | Polycarbonate with epoxidized block copolymer |
| JP2008045141A (en) * | 2007-10-22 | 2008-02-28 | Idemitsu Kosan Co Ltd | Polycarbonate resin composition and light guiding plate |
| JP2011052236A (en) * | 2010-12-17 | 2011-03-17 | Mitsubishi Rayon Co Ltd | Hard-coated article |
| US10731033B2 (en) | 2013-10-07 | 2020-08-04 | Mitsubishi Gas Chemical Company, Inc. | (Meth)acrylic copolymer, resin composition, and molded product of said resin composition |
| WO2015053145A1 (en) | 2013-10-07 | 2015-04-16 | 三菱瓦斯化学株式会社 | (meth)acrylic copolymer, resin composition, and molded product of said resin composition |
| KR20160075526A (en) | 2013-10-07 | 2016-06-29 | 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 | (meth)acrylic copolymer, resin composition, and molded product of said resin composition |
| US10081729B2 (en) | 2013-10-07 | 2018-09-25 | Mitsubishi Gas Chemical Company, Inc. | (Meth)acrylic copolymer, resin composition, and molded product of said resin composition |
| KR20170036663A (en) | 2014-10-10 | 2017-04-03 | 아사히 가세이 케미칼즈 가부시키가이샤 | Thermoplastic resin compositions, method for producing the same and molded body |
| KR20160138314A (en) | 2015-02-05 | 2016-12-02 | 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 | Polycarbonate resin composition and article molded therefrom |
| US10138372B2 (en) | 2015-02-05 | 2018-11-27 | Mitsubishi Gas Chemical Company, Inc. | Polycarbonate resin composition and article molded therefrom |
| KR20170100051A (en) | 2015-03-30 | 2017-09-01 | 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 | Resin composition and molded article using the same |
| US10150865B2 (en) | 2015-03-30 | 2018-12-11 | Mitsubishi Gas Chemical Company, Inc. | Resin composition and molded object obtained therefrom |
| KR20190055803A (en) | 2016-09-26 | 2019-05-23 | 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 | (Meth) acrylic copolymer, a resin composition, a molded article thereof, and a method for producing a molded article |
| US11078355B2 (en) | 2016-09-26 | 2021-08-03 | Mitsubishi Gas Chemical Company, Inc. | (Meth)acrylic copolymer, resin composition, molded body of same, and method for producing molded body |
| CN111518378A (en) * | 2020-04-19 | 2020-08-11 | 东莞市骄阳塑胶科技有限公司 | Special transparent high-surface-hardness wear-resistant polycarbonate material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0434573B2 (en) | 1992-06-08 |
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