JPS5840341A - Coating resin composition - Google Patents
Coating resin compositionInfo
- Publication number
- JPS5840341A JPS5840341A JP13775581A JP13775581A JPS5840341A JP S5840341 A JPS5840341 A JP S5840341A JP 13775581 A JP13775581 A JP 13775581A JP 13775581 A JP13775581 A JP 13775581A JP S5840341 A JPS5840341 A JP S5840341A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- propylene
- weight
- component
- flow rate
- 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】
本発明は、結晶性エチレン−プロピレンブロック共重合
体（以下ＥＰＰと記載する）と特定のエチレン−プリピ
レン系共重合体ゴム（以下ＥＰＲと記載する）および高
密度ポリエチレン（以下ＨＤＰＫと記載する）を配合す
ることＫよ〕得られる、塗装性の良好表樹脂組成物に関
する。Detailed Description of the Invention The present invention relates to a crystalline ethylene-propylene block copolymer (hereinafter referred to as EPP), a specific ethylene-propylene copolymer rubber (hereinafter referred to as EPR), and a high-density polyethylene (hereinafter referred to as EPR). This invention relates to a surface resin composition with good paintability obtained by blending HDPK (hereinafter referred to as HDPK).
プ四ピレン重谷体（以下ＰＰと記載する）は入手が容品
で、市場の要求性能をある程度満たす物性を有すので、
汎用樹脂として各分野で利用されている。しかしながら
、構造上極性がないので塗装性が不要であることが欠点
の一つとなっている。Polypyrene Jutani (hereinafter referred to as PP) is readily available and has physical properties that meet the performance requirements of the market to a certain extent.
It is used as a general-purpose resin in various fields. However, one of its drawbacks is that it does not require paintability because it has no polarity due to its structure.
この欠点を解消する方法として、ＰＰ Ｋ ＥＰＲを添
加して塗装する方法が知られている。この方法は、ポリ
プロピレン（プロピレンの単独重合体）Ｋはそれなシの
効果を有するが、ＥＰＰでは塗装改良効果がはるかに小
さいため、更に成形体表面を有機溶剤で洗浄する等の表
面処理を施す必要があり、煩雑さをまぬがれない。As a method to overcome this drawback, a method of adding PPK EPR and painting is known. This method has a certain effect on polypropylene (propylene homopolymer) K, but since the coating improvement effect on EPP is much smaller, it is necessary to further perform surface treatment such as cleaning the surface of the molded product with an organic solvent. It is necessary and cannot avoid complications.
この理由祉必ずしも明らかではないが、ｇｐｐと混合さ
れたｇＰＲが成形体表面近傍に細かく分散されないため
と考えられる。Although the reason for this is not entirely clear, it is thought that gPR mixed with gpp is not finely dispersed near the surface of the molded article.
ＥＰＰは耐衝撃性が高いので、これの塗装性を改良する
ことは非常に有用である。Since EPP has high impact resistance, it would be very useful to improve its paintability.
本発明はＥＰＰの塗装性を改臭することを目的とし、そ
のために配合されるＥＰＲを特に成形体表面近傍に細か
く分散させることを狙って検討した結果、特定のＥＰＲ
とＨＤＰＥを併用してＥＰＰ に配合することによっ
て塗装性の良好な組成物が得られることに着目して達成
されたものである。The purpose of the present invention is to improve the paintability of EPP, and as a result of studies aimed at finely dispersing the EPR blended for that purpose, especially near the surface of the molded product, we found that a specific EPR
This was achieved by focusing on the fact that a composition with good paintability can be obtained by blending EPP with HDPE and HDPE.
すなわち本発明は、下記の（ａ）乃至（ｃ）成分からな
ることを特徴とする塗装性樹脂組成物である。That is, the present invention is a paintable resin composition characterized by comprising the following components (a) to (c).
（ａ）エチレン含量が１−（支）重量−の結晶性エチレ
ン−プロピレンブロック共重合体 ３５〜８８重量−ｃ
ｂ＞ムーニー粘度がＭＬ１＋４（１００℃）で（至）以
下であるエチレン−プロピレン系共重合体コム
４０〜１０重１ｉ−
（ｃ）メルトフローレートがＩｓ Ｆ／１０分以上であ
る密度０−９４５ ｔ／ａ１以上のポリエチレン ２５
〜２重量一本発明組成物は、塗装性社むろん、針術撃性
も良好なので、自動車、家電、容器、雑貨等の広い分野
での利用が可能である。(a) Crystalline ethylene-propylene block copolymer with an ethylene content of 1-(support) weight-c of 35 to 88 weight-c
b> Ethylene-propylene copolymer com 40-10 weight 1i- having a Mooney viscosity of ML1+4 (100°C) or less (c) Density 0-945 having a melt flow rate of Is F/10 min or more Polyethylene with t/a1 or more 25
~2 weight 1 The composition of the present invention has good paintability and good acupuncture properties, so it can be used in a wide range of fields such as automobiles, home appliances, containers, and miscellaneous goods.
本発明で用いる（＆）成分のＥＰＰは、エチレン含量が
１〜３０重量−１好ましくは、５〜２０重景−重電−テ
ア）、ＪＩＢ−に６７ＢＢ （２３０℃、２．１６ Ｋ
ｆ荷重）準拠のメルトフローレート（以下ＭＦＲと記載
する）が０．０１〜１５０１７１０分、好ましくは０．
１〜６０ ｆ／分、特に好ましくは０．５〜４０ｆ７１
０分のものが成形品外観の点で望ましい、ｔた、これは
結晶性である必要があシ、アイソタクチックインデック
ス（ＩＩ）が少なくとも４０以上、好ましくは７０以上
、特に好ましく酸８０以上であるものが剛性の点で望ま
しい。また、これは、エチレンとプロピレンの外に炭素
数が３以上のα−オレフィンを若干量含む共重合体を排
除するものではない。The (&) component EPP used in the present invention has an ethylene content of 1 to 30 weight-1, preferably 5 to 20
f load) based melt flow rate (hereinafter referred to as MFR) is 0.01 to 1501710 minutes, preferably 0.01 to 1501710 minutes.
1-60 f/min, particularly preferably 0.5-40 f71
0 minute is desirable from the point of view of the appearance of the molded product, it must be crystalline, and the isotactic index (II) is at least 40 or higher, preferably 70 or higher, particularly preferably 80 or higher. Some are desirable in terms of rigidity. Further, this does not exclude copolymers containing a small amount of α-olefin having 3 or more carbon atoms in addition to ethylene and propylene.
仁のよりなＥＰＰｄ、例えば特公昭４０−１１６２３、
同４３−１１２３０、同４４−１６６６８号公報等に提
案された方法によって製造することができるが、市販さ
れているものから適宜選択して用いられる。EPPd of more people, such as Special Publication Publication No. 40-11623,
It can be manufactured by the method proposed in JP 43-11230, JP 44-16668, etc., but it can be appropriately selected from commercially available products.
次に、本発明で用いる（ｂ）成分０ＢＰＲは、ムー；。Next, component (b) 0BPR used in the present invention is Mu;
−粘度がＭＬ、＋、（１００℃）で薗以下、好ましく祉
怒以下のものである。また、これのプロピレン含量は２
５〜５０重量−であるものが望ましい。- The viscosity is ML, +, (100° C.) less than or equal to 100%, preferably less than or equal to 100%. Also, the propylene content of this is 2
It is desirable that the weight is 5 to 50% by weight.
ＩＰＲとしては、いわゆるＥＰＭの外、ＩｊＰＤＭ も
含まれる。IPR includes not only so-called EPM but also IjPDM.
ムーニー粘度が上記範囲をはずれるもの社、塗装性向上
の効果が低い。If the Mooney viscosity is outside the above range, the effect of improving paintability is low.
また、本発明で用いるＩＩＤＰＩｅは、密度が０．９４
５ｆ／ａＩＩｓ以上で、ＪＩＢ−［６７６０（１９０℃
、２．１６荷重）準拠１２） ＭＦＲが１５ｆ／１０分
以上、好ましくは１８Ｆ／１０分以上のものである。In addition, IIDPIe used in the present invention has a density of 0.94
5f/aIIs or more, JIB-[6760 (190℃
, 2.16 Load) 12) MFR is 15F/10 minutes or more, preferably 18F/10 minutes or more.
ＭＦＲがζ、の範囲以外の４の杜、塗装性向上効果が低
い。4 for which the MFR is outside the range of ζ, the paintability improvement effect is low.
これらの（ａ）乃至（ｅ）成分の配合量は、（ａ）成分
が３５〜８８重量−１（ｉ））成分が４０〜１０重量−
１好ましくは３０〜１５重量−１（＠）成分が２５〜２
重貴−１好ましくｄ１５〜５重量−である。The blending amount of these components (a) to (e) is 35 to 88 weight of component (a) - 40 to 10 weight of component (i) -
1 Preferably 30-15 weight - 1 (@) component is 25-2
Preferably d15 to 5 weight.
伽）成分が１０重量−未満を九は（ｅ）成分が上記範囲
以外のものでは塗装性向上効果が低く、（ｂ）成分が４
０重量−を超過すると組成物の剛性が低く実用的でない
。佽) If the component is less than 10% by weight, the effect of improving paintability will be low if the component (e) is outside the above range, and if the component (b) is less than 4% by weight.
If it exceeds 0 weight, the stiffness of the composition is low and it is not practical.
なお、本発明の効果を損なわない範囲で、他の熱可塑性
樹脂、無機充填剤、各種安定剤、着色剤等を添加しても
よい。Note that other thermoplastic resins, inorganic fillers, various stabilizers, colorants, etc. may be added within a range that does not impair the effects of the present invention.
本発明組成物を製造する方法は、ロール、バンバリー電
キサ−、プラベンダープラストグラ７、二軸押出機等通
常の混線機にて、両成分（必！！によ）他の成分を加え
て）を混練することによりなされる。The method for producing the composition of the present invention is to add both components (necessarily) to other components using a common mixer such as a roll, Banbury electric mixer, Prabender Plastogura 7, or twin screw extruder. ) by kneading.
混線機として杜、混線効果の大きなものが好ましいが、
各種成形機に所要成分を直接ツイードして本発明組成物
を製造すること亀できる。It is preferable to use a crosstalk device with a large crosstalk effect.
The composition of the present invention can be manufactured by directly tweeding the necessary ingredients into various molding machines.
本発明組成物は射出成形、押出成形、圧縮成形、プロー
成形等各種の方法で成形でき、その成形体を塗装する。The composition of the present invention can be molded by various methods such as injection molding, extrusion molding, compression molding, and blow molding, and the molded product is coated.
塗装前にアルコール、トルエン、１゜１．１− ）リク
ロルエタン等の有機溶剤でその表面を予め処理すれば、
一層の効果があるが、通常線無処理でも十分な塗装性が
ある。If the surface is treated with an organic solvent such as alcohol, toluene, or 1°1.1-) dichloroethane before painting,
Although it is more effective, it has sufficient paintability even without regular wire treatment.
次に実施例によって本発明を更に具体的に説明する。Next, the present invention will be explained in more detail with reference to Examples.
実施例１
各種０１ＰＰ％ＩＰＲ訃よびポリエチレンを第１表に示
す量比で配合し、Ｌ／Ｄｍ２５の２軸押出機で樹脂温ｆ
２００℃で混練造粒した。Example 1 Various types of 01PP% IPR and polyethylene were blended in the amount ratio shown in Table 1, and the resin temperature was adjusted to f using a twin-screw extruder with L/Dm25.
The mixture was kneaded and granulated at 200°C.
喪だし、ベール状のゴムを用いた場合は、２００℃の熱
ロールで１５分間混練後ベレット状にカットし九。If a veil-shaped rubber is used, knead it with a hot roll at 200°C for 15 minutes and then cut it into pellets.
これらを日本製鋼折襞Ｎ −１００Ｂ Ｉ型射出成形機
にてシリンダーおよび金型の温ｆ２２０℃および４０℃
で２１１１１厚のシートを成形した。These were processed using a Japan Steel Fold N-100B I-type injection molding machine at cylinder and mold temperatures of 220°C and 40°C.
A sheet with a thickness of 21,111 mm was formed using the following steps.
塗装試験は、カシニー社製のポリオレアイン用塗料マイ
クロンφ３０００および同φ４０００をそれぞれ先のシ
ートに厚み約頷μになるよう吹き付は塗装し、８０℃で
（９）分間乾燥後に１塗装面に縦横それぞれ１富■間隔
で１１１ＩＩｌ角が１０個ずつ、すなわち合計１００個
と表るようにナイフ刃で基盤目を入れ、セロテープを接
着させて急激に剥離を行ない、塗料が剥離せずに残った
目の数を数えた。In the painting test, Kashiny's polyoleain paint Micron φ3000 and Micron φ4000 were sprayed on each sheet to a thickness of approximately 10 μm, and after drying at 80°C for (9) minutes, they were sprayed on one coated surface vertically and horizontally. Use a knife blade to make holes in the base so that there are 10 111II angles at intervals of 1 wealth, or a total of 100 pieces, then glue cellophane tape on the base and peel it off rapidly. I counted the numbers.
結果を第１表に示す。The results are shown in Table 1.
表中の各銘柄は、次の内容である。The details of each brand in the table are as follows.
ＢＣ３１三菱油化社製ＥＰＰ
ＷＰ０７Ｐ ：同上社製ＥＰＲ
ＥＰ０２Ｐ ：同上
タフマーＰ−０１８０：三井石油化学工業社製ＥＰＲＰ
−１０７６：試作品ＫＰＲ
ＪＸ ２０ ：三菱油化社製ＨＤＰ１
１９９１−２３ ：カナダデュポン社製ＨＤＰＥＪＸ
１０ ：三菱油化社製ＨＤＰＥ
ＭＳ ３０ ：同上社製低密度ポリエチレン実施例２
ＥＰＲおよびＨＤＰＥ の配合量の影響を調べるため、
第２表に示す成分と配合量で、実施例１と同様の方法で
組成物を評′価した。BC31 EPP made by Mitsubishi Petrochemical Co., Ltd. WP07P: EPR made by the same company EP02P: Same as above Tafmar P-0180: EPRP made by Mitsui Petrochemical Industries Co., Ltd.
-1076: Prototype KPR JX 20: HDP1 manufactured by Mitsubishi Yuka Co., Ltd. 1991-23: HDPEJX manufactured by DuPont Canada
10: HDPE manufactured by Mitsubishi Yuka Co., Ltd. MS 30: Low density polyethylene manufactured by the same company Example 2 To investigate the influence of the blending amount of EPR and HDPE,
The compositions were evaluated in the same manner as in Example 1 using the ingredients and amounts shown in Table 2.
結果を第２表に示す。The results are shown in Table 2.
表中、Ｂｅ２Ｏは三菱油化社製ＥＰＰであシ、そのエチ
レン（Ｃ８）含量は１４重量−１ＭＦＲは１．２ｆ／ｌ
Ｏ分である。In the table, Be2O is EPP made by Mitsubishi Yuka Co., Ltd., and its ethylene (C8) content is 14 weight - 1 MFR is 1.2 f/l
It is O minutes.
第２表
（注）（１１＊は比較例
（２） Ｎｏ、 １９は、成形品のゆがみが大きく、Ｎ
ｏ、２５は基材表層剥離がみちれた。Table 2 (Note) (11* is comparative example (2) No. 19 is a molded product with large distortion, N
No. 25 had peeling of the base material surface layer.
特許出願人 三菱油化株式会社Patent applicant Mitsubishi Yuka Co., Ltd.
Claims (1)
塗装性樹脂組成物。 （ａ） エチレン含量が１〜３０重量−の結晶性エチ
レン−プロピレンブロック共重合体３５〜８８重量−（
ｂ） ムーニー粘度がＭＬｔ＋ａ（１００℃）で（９
）以下であるエチレン−プロピレン系共重合体ゴム ４０〜１０重量− （ｃ） メルトフローレートが１５ｆ７１０分以上で
ある密度０．９４５ ｔ／ｌｓ以上のポリエチレン２５
〜２重１１−[Scope of Claims] A paintable resin composition characterized by comprising the following components (a) to (c). (a) Crystalline ethylene-propylene block copolymer with an ethylene content of 1 to 30% by weight (35 to 88% by weight)
b) Mooney viscosity is (9
) Ethylene-propylene copolymer rubber 40 to 10% by weight - (c) Polyethylene 25 with a density of 0.945 t/ls or more and a melt flow rate of 15f710 minutes or more
~Double 11-
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13775581A JPS5840341A (en) | 1981-09-03 | 1981-09-03 | Coating resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13775581A JPS5840341A (en) | 1981-09-03 | 1981-09-03 | Coating resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5840341A true JPS5840341A (en) | 1983-03-09 |
| JPH0257582B2 JPH0257582B2 (en) | 1990-12-05 |
Family
ID=15206070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13775581A Granted JPS5840341A (en) | 1981-09-03 | 1981-09-03 | Coating resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840341A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62218023A (en) * | 1986-03-18 | 1987-09-25 | Inoue Japax Res Inc | Electric discharge machine |
| US5147933A (en) * | 1990-04-27 | 1992-09-15 | Toyoda Gosei Co., Ltd. | Polypropylene resin composition |
| JPH0682348U (en) * | 1993-05-11 | 1994-11-25 | 株式会社長澤製作所 | Hinge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56106948A (en) * | 1980-01-29 | 1981-08-25 | Mitsubishi Petrochem Co Ltd | Propylene polymer composition |
-
1981
- 1981-09-03 JP JP13775581A patent/JPS5840341A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56106948A (en) * | 1980-01-29 | 1981-08-25 | Mitsubishi Petrochem Co Ltd | Propylene polymer composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62218023A (en) * | 1986-03-18 | 1987-09-25 | Inoue Japax Res Inc | Electric discharge machine |
| US5147933A (en) * | 1990-04-27 | 1992-09-15 | Toyoda Gosei Co., Ltd. | Polypropylene resin composition |
| JPH0682348U (en) * | 1993-05-11 | 1994-11-25 | 株式会社長澤製作所 | Hinge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0257582B2 (en) | 1990-12-05 |
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