JPH04277542A - Polycarbonate resin composition - Google Patents
Polycarbonate resin compositionInfo
- Publication number
- JPH04277542A JPH04277542A JP6388491A JP6388491A JPH04277542A JP H04277542 A JPH04277542 A JP H04277542A JP 6388491 A JP6388491 A JP 6388491A JP 6388491 A JP6388491 A JP 6388491A JP H04277542 A JPH04277542 A JP H04277542A
- Authority
- JP
- Japan
- Prior art keywords
- polypropylene
- weight
- polycarbonate resin
- parts
- resin
- 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.)
- Withdrawn
Links
- 229920005668 polycarbonate resin Polymers 0.000 title claims abstract description 25
- 239000004431 polycarbonate resin Substances 0.000 title claims abstract description 25
- 239000000203 mixture Substances 0.000 title claims description 8
- 239000004743 Polypropylene Substances 0.000 claims abstract description 37
- -1 polypropylene Polymers 0.000 claims abstract description 35
- 229920001155 polypropylene Polymers 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005862 polyol Polymers 0.000 claims abstract description 13
- 150000003077 polyols Chemical class 0.000 claims abstract description 13
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 4
- 239000004417 polycarbonate Substances 0.000 claims description 9
- 229920000515 polycarbonate Polymers 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 229920001610 polycaprolactone Polymers 0.000 claims description 7
- 239000004632 polycaprolactone Substances 0.000 claims description 7
- 150000002009 diols Chemical class 0.000 claims description 6
- 239000000126 substance Substances 0.000 abstract description 4
- 230000032798 delamination Effects 0.000 description 4
- 238000004898 kneading Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011342 resin composition Substances 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920009204 Methacrylate-butadiene-styrene Polymers 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- WWNGFHNQODFIEX-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;styrene Chemical compound C=CC=C.COC(=O)C(C)=C.C=CC1=CC=CC=C1 WWNGFHNQODFIEX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920005676 ethylene-propylene block copolymer Polymers 0.000 description 1
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【産業上の利用分野】本発明はポリカーボネート樹脂組
成物に関するものである。FIELD OF THE INVENTION This invention relates to polycarbonate resin compositions.
【０００２】0002
【従来の技術】従来、ポリカーボネートは、透明性、耐
熱性及び耐衝撃性に極めて優れた特性を有し、これらの
特性を必要とする分野に広く利用されている。しかしな
がら成形加工時に高い成形温度を必要とする事など成形
性が悪いという欠点があった。このような欠点を改良す
る為にポリカーボネート樹脂に他の樹脂を配合する方法
が種々提案されている。BACKGROUND OF THE INVENTION Conventionally, polycarbonate has extremely excellent properties such as transparency, heat resistance and impact resistance, and has been widely used in fields requiring these properties. However, it has the drawback of poor moldability, such as the need for a high molding temperature during molding. In order to improve these drawbacks, various methods have been proposed for blending other resins with polycarbonate resin.
【０００３】例えば、ポリカーボネート樹脂に代表的な
ジエン系ゴムグラフト重合体であるＡＢＳ樹脂（アクリ
ロニトリル−ブタジエン−スチレン重合体）あるいは、
ＭＢＳ樹脂（メチルメタクリレート−ブタジエン−スチ
レン重合体）等を加えて、ポリカーボネート樹脂の成形
性を改良し、さらに衝撃強度の厚み依存性を少なくしよ
うとする試みは特公昭３８−１５２２５、４２−１１４
９６、５１−１１１４２等で提案されており、いずれの
組成物も見かけ上の成形性は改良されている。For example, ABS resin (acrylonitrile-butadiene-styrene polymer), which is a typical diene rubber graft polymer for polycarbonate resin, or
Attempts to improve the moldability of polycarbonate resin by adding MBS resin (methyl methacrylate-butadiene-styrene polymer) and to further reduce the thickness dependence of impact strength were reported in Japanese Patent Publications No. 38-15225 and 42-114.
96, 51-11142, and the like, and all of the compositions have improved apparent moldability.
【０００４】しかしながらウエルド強度が充分でなく、
実用的な成形品を得ることが困難であるのが現状である
。 一方、ポリプロピレン樹脂は、射出成形、フィル
ム成形、繊維用樹脂として広く使用されているが、剛性
が劣っているがために用途が制約されている。そこでポ
リプロピレン樹脂の剛性改良について既にいくつかの試
みが成されているが、そのほとんどはタルク、マイカの
様な無機質充填剤の混入による改質である。この場合剛
性は確かに改良されるが、衝撃強度の低下、成形品の外
観不良等の問題が生じる。However, the weld strength is not sufficient,
At present, it is difficult to obtain practical molded products. On the other hand, polypropylene resin is widely used as a resin for injection molding, film molding, and fibers, but its uses are limited due to its poor rigidity. Therefore, several attempts have already been made to improve the rigidity of polypropylene resin, but most of them involve modification by incorporating inorganic fillers such as talc and mica. In this case, although the rigidity is certainly improved, problems such as a decrease in impact strength and poor appearance of the molded product arise.
【０００５】更に、ポリカーボネート樹脂とポリプロピ
レン樹脂を単純ブレンドする事は特公昭４０−１３６６
４、特開昭５９−２２３７４１に記載されており、前者
はポリカーボネート樹脂１００重量部に対してポリプロ
ピレン樹脂５０重量部以下を使用し、後者はポリプロピ
レン１００重量部に対してポリカーボネート樹脂１〜１
００重量部使用することを示している。また、ポリプロ
ピレン樹脂の代わりに無水マレイン酸変性ポリプロピレ
ンを用いることは特開昭５９−２２３７４２に記載され
ており、変性ポリプロピレン１００重量部に対してポリ
カーボネート樹脂１〜１００重量部用いることが示され
ている。Furthermore, the simple blending of polycarbonate resin and polypropylene resin was proposed in Japanese Patent Publication No. 40-1366.
4, described in JP-A-59-223741, the former uses 50 parts by weight or less of polypropylene resin per 100 parts by weight of polycarbonate resin, and the latter uses 1 to 1 part by weight of polycarbonate resin per 100 parts by weight of polypropylene.
00 parts by weight is used. Furthermore, the use of maleic anhydride-modified polypropylene instead of polypropylene resin is described in JP-A-59-223742, which indicates that 1 to 100 parts by weight of polycarbonate resin is used for 100 parts by weight of modified polypropylene. .
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、従来の
技術ではポリカーボネート樹脂とポリプロピレン樹脂が
非相溶系な為、層状剥離や真珠光沢による外観不良が発
現し、かつ高剛性を有す樹脂組成物を得ることはできな
かった。従って、本発明の目的はポリカーボネート樹脂
とポリプロピレン樹脂のブレンドにおいて相溶性を発現
し、かつ高剛性並びに耐薬品性に優れた樹脂組成物を提
供する事である。[Problems to be Solved by the Invention] However, in the conventional technology, since polycarbonate resin and polypropylene resin are incompatible, appearance defects due to delamination and pearlescence occur, and a resin composition having high rigidity is obtained. I couldn't do that. Therefore, an object of the present invention is to provide a resin composition that exhibits compatibility in a blend of polycarbonate resin and polypropylene resin, and has high rigidity and excellent chemical resistance.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、上記のよ
うな問題点を解決するため研究を行い、ポリカーボネー
ト樹脂に相溶性のあるポリオールとポリプロピレンに相
溶性のある無水マレイン酸変性ポリプロピレンを混合機
内で溶融混練することで目的とする相溶化剤が得られる
事を見いだした。これをポリカーボネート樹脂およびポ
リプロピレンと再度溶融混練する事で本発明を完成した
。すなわち本発明はポリカーボネート樹脂１〜９９重量
部にポリプロピレン樹脂９９〜１重量部をブレンドする
に際し、ポリオールと無水マレイン酸変性ポリプロピレ
ンの反応物を上記ポリカーボネートとポリプロピレンと
の合計１００重量部に対して１０〜３０重量部添加する
ことを特徴とするポリカーボネート樹脂組成物である。[Means for Solving the Problems] The present inventors have conducted research to solve the above problems, and have developed a polyol that is compatible with polycarbonate resin and a maleic anhydride-modified polypropylene that is compatible with polypropylene. It was discovered that the desired compatibilizer could be obtained by melt-kneading in a mixer. The present invention was completed by melt-kneading this with polycarbonate resin and polypropylene again. That is, in the present invention, when blending 99 to 1 part by weight of polypropylene resin to 1 to 99 parts by weight of polycarbonate resin, the reaction product of polyol and maleic anhydride-modified polypropylene is added in an amount of 10 to 10 parts by weight based on a total of 100 parts by weight of the polycarbonate and polypropylene. This is a polycarbonate resin composition characterized by adding 30 parts by weight.
【０００８】以下、本発明を詳細に説明する。まず、本
発明で使用するポリカーボネート樹脂はビスフェノール
Ａ系で分子量２５０００以上のものが好ましい。The present invention will be explained in detail below. First, the polycarbonate resin used in the present invention is preferably bisphenol A-based and has a molecular weight of 25,000 or more.
【０００９】次にポリプロピレンは、一般市販されてい
るものを使用でき、例えばポリプロピレンホモポリマー
、エチレンープロピレンランダムコポリマー、エチレン
ープロピレンブロックコポリマー、エチレンープロピレ
ンーブテンー１ターポリマーなどが挙げられる。Next, commercially available polypropylenes can be used, such as polypropylene homopolymers, ethylene-propylene random copolymers, ethylene-propylene block copolymers, ethylene-propylene-butene-1 terpolymers, and the like.
【００１０】なお、両者のブレンドは夫々１〜９９重量
部の範囲が適当であり、この範囲を外れると、両者夫々
の有する本来の特性を十分発揮することができない。[0010] It is appropriate for the blend of both to be in the range of 1 to 99 parts by weight, and if it is out of this range, the original characteristics of each cannot be fully exhibited.
【００１１】ポリオールはジオールタイプのものが好ま
しく、中でもポリカプロラクトンジオール（分子量４万
以上）が好ましい。ポリカプロラクトンジオールは、他
のポリオールと比較するとポリカーボネート樹脂とより
相溶性がよく、かつポリカーボネート樹脂の溶融粘度を
低下させて、ＰＰの溶融粘度に近づける効果を持ってい
る。また、末端の水酸基の数によってトリオール及びポ
リオールタイプがある。これらの場合、水酸基の増加に
よって反応は有効に進行すると考えられるが、流動性等
が損なわれる可能性を含んでいる。[0011] The polyol is preferably a diol type, and polycaprolactone diol (molecular weight of 40,000 or more) is particularly preferred. Polycaprolactone diol has better compatibility with polycarbonate resin than other polyols, and has the effect of lowering the melt viscosity of polycarbonate resin, bringing it closer to the melt viscosity of PP. Furthermore, there are triol and polyol types depending on the number of terminal hydroxyl groups. In these cases, the reaction is thought to proceed effectively due to the increase in the number of hydroxyl groups, but there is a possibility that fluidity etc. may be impaired.
【００１２】無水マレイン酸変性ポリプロピレンは変性
率０．１〜１０ｗｔ％のものであり、特に１〜３ｗｔ％
のものが好ましい。ポリオールと無水マレイン酸変性ポ
リプロピレンの割合は無水マレイン酸変性ポリプロピレ
ン１００重量部に対してポリオール１０〜１００重量部
であり、好ましくは５０重量部以下が好ましい。１０重
量部未満では目的とする層状剥離の解消が達成されず、
また１００重量部より多い系では、できあがった樹脂組
成物の使用耐熱温度が急激に低下する。 混練温度は
２００〜３００℃、好ましくは２３０〜２７０℃である
。The maleic anhydride-modified polypropylene has a modification rate of 0.1 to 10 wt%, particularly 1 to 3 wt%.
Preferably. The ratio of the polyol to the maleic anhydride-modified polypropylene is 10 to 100 parts by weight, preferably 50 parts by weight or less, per 100 parts by weight of the maleic anhydride-modified polypropylene. If it is less than 10 parts by weight, the desired elimination of delamination will not be achieved,
Moreover, if the amount is more than 100 parts by weight, the use temperature limit of the resulting resin composition will decrease rapidly. The kneading temperature is 200-300°C, preferably 230-270°C.
【００１３】以上のようにして得られた反応物をポリカ
ーボネートとポリプロピレンとの合計１００重量部に対
して１０〜３０重量部添加する。その添加量が１０重量
部未満では層状剥離が解消されず、相溶液化が達成され
ない。一方、３０重量部を超えると、低融点を有するポ
リオールの影響で使用耐熱温度の急激な低下を引きおこ
す。The reactant obtained as described above is added in an amount of 10 to 30 parts by weight per 100 parts by weight of the polycarbonate and polypropylene. If the amount added is less than 10 parts by weight, delamination will not be resolved and phase solution formation will not be achieved. On the other hand, if it exceeds 30 parts by weight, the use temperature limit will drop sharply due to the influence of the polyol having a low melting point.
【００１４】[0014]
【作用】本発明は、ポリカーボネートに相溶性のあるポ
リオールとポリプロピレンに相溶性のある無水マレイン
酸変性ポリプロピレンの反応物を相溶化剤として用いる
ことによりポリカーボネート樹脂とポリプロピレン樹脂
の相溶性が向上して、両者のブレンド化が可能となる。
その結果、ポリカーボネートの耐衝撃性、高剛性、そし
てポリプロピレンの成形性、耐薬品性等を兼備せしめる
ことが可能になると思われる。[Function] The present invention improves the compatibility between polycarbonate resin and polypropylene resin by using a reaction product of a polyol that is compatible with polycarbonate and a maleic anhydride-modified polypropylene that is compatible with polypropylene as a compatibilizing agent. Blending of both becomes possible. As a result, it is thought that it will be possible to combine the impact resistance and high rigidity of polycarbonate with the moldability, chemical resistance, etc. of polypropylene.
【００１５】[0015]
【実施例】ポリオール（ポリカプロラクトンジオール）
と無水マレイン酸変性ポリプロピレンを配合比１：１と
して２軸混練機で溶融混練し反応させた。樹脂温度は２
６０℃とした。これを空気中で乾燥した後、ポリカーボ
ネート樹脂およびポリプロピレン（配合比ＰＣ／ＰＰ＝
８０／２０）と一緒に混合して、再度溶融混練し成形後
、物性評価を行った。また、ポリカプロラクトンジオー
ルの代わりにポリカプロラクトントリオール、およびポ
リカプロラクトンポリオールを使用して実施例１と同様
の評価を行った。その結果を表１に示す。[Example] Polyol (polycaprolactone diol)
and maleic anhydride-modified polypropylene were melt-kneaded using a twin-screw kneader at a blending ratio of 1:1 and reacted. Resin temperature is 2
The temperature was 60°C. After drying this in the air, polycarbonate resin and polypropylene (mixing ratio PC/PP=
80/20), melt-kneaded again, and after molding, physical properties were evaluated. Further, the same evaluation as in Example 1 was conducted using polycaprolactone triol and polycaprolactone polyol instead of polycaprolactone diol. The results are shown in Table 1.
【００１６】[0016]
【表１】[Table 1]
【００１７】[0017]
【発明の効果】本発明によればポリカーボネートの耐薬
品性向上及びポリプロピレンの剛性改良効果が著しいば
かりでなく、ポリカーボネートとポリプロピレンを単純
ブレンドした際に生じる真珠光沢及び層状剥離が解消さ
れる。しかも、使用される相溶化剤は混練機内で溶融混
練するだけで容易に反応させることができるので、製造
工程が簡略化され大幅なコスト低減につながるものであ
り、産業上の効果は極めて顕著である。According to the present invention, not only is the effect of improving the chemical resistance of polycarbonate and the rigidity of polypropylene remarkable, but also the pearlescent luster and delamination that occur when polycarbonate and polypropylene are simply blended are eliminated. Moreover, the compatibilizer used can be easily reacted by simply melting and kneading it in a kneader, which simplifies the manufacturing process and leads to significant cost reductions, and the industrial effects are extremely significant. be.
Claims (2)
にポリプロピレン樹脂９９〜１重量部をブレンドするに
際しポリオールと無水マレイン酸変性ポリプロピレンの
反応物を上記ポリカーボネートとポリプロピレンとの合
計１００重量部に対して１０〜３０重量部添加すること
を特徴とするポリカーボネート樹脂組成物。1. When blending 99 to 1 part by weight of a polypropylene resin to 1 to 99 parts by weight of a polycarbonate resin, a reaction product of polyol and maleic anhydride-modified polypropylene is added in an amount of 10 to 10 parts by weight based on a total of 100 parts by weight of the polycarbonate and polypropylene. A polycarbonate resin composition characterized in that 30 parts by weight is added.
ールである請求項１記載のポリカーボネート樹脂組成物
。 【０００１】2. The polycarbonate resin composition according to claim 1, wherein the polyol is polycaprolactone diol. 0001
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6388491A JPH04277542A (en) | 1991-03-05 | 1991-03-05 | Polycarbonate resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6388491A JPH04277542A (en) | 1991-03-05 | 1991-03-05 | Polycarbonate resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04277542A true JPH04277542A (en) | 1992-10-02 |
Family
ID=13242161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6388491A Withdrawn JPH04277542A (en) | 1991-03-05 | 1991-03-05 | Polycarbonate resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04277542A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5594062A (en) * | 1994-03-16 | 1997-01-14 | Kawasaki Steel Corporation | Polycarbonate/polyolefin based resin compositions and their production processes and uses |
-
1991
- 1991-03-05 JP JP6388491A patent/JPH04277542A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5594062A (en) * | 1994-03-16 | 1997-01-14 | Kawasaki Steel Corporation | Polycarbonate/polyolefin based resin compositions and their production processes and uses |
| US5847041A (en) * | 1994-03-16 | 1998-12-08 | Kawasaki Steel Corporation | Polycarbonate/polyolefin based resin compositions and their production processes and uses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980514 |