JPS58141228A - Polyolefin resin composition - Google Patents
Polyolefin resin compositionInfo
- Publication number
- JPS58141228A JPS58141228A JP2393982A JP2393982A JPS58141228A JP S58141228 A JPS58141228 A JP S58141228A JP 2393982 A JP2393982 A JP 2393982A JP 2393982 A JP2393982 A JP 2393982A JP S58141228 A JPS58141228 A JP S58141228A
- Authority
- JP
- Japan
- Prior art keywords
- polyethylene
- polypropylene
- weight
- parts
- 100pts
- 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.)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、真空成形性及び耐衝撃性に優れた無機充填剤
を含有するポリオレフィン樹脂組成物に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polyolefin resin composition containing an inorganic filler having excellent vacuum formability and impact resistance.
従来、無機充填剤含有ポリオレフィン樹脂はよ（知られ
ており、ポリオレフィン単独の場合に比べ充填剤の特性
を生かして剛性や難燃性番こ優れる機能的な材料である
。しかし、その比重が大きいために、ポリオレフィン単
独の場合に比べ真空成形に於ける加熱時の垂れ下がりが
大きく、真空成形性が悪い欠点を有していた。Conventionally, polyolefin resins containing inorganic fillers have been well known and are functional materials that take advantage of the properties of fillers and have superior rigidity and flame retardancy compared to polyolefins alone. However, their specific gravity is high. Therefore, compared to the case of polyolefin alone, it had the disadvantage that it sagged more during heating during vacuum forming, and its vacuum formability was poor.
一般に、真空成形に於ける加熱時の垂れは樹脂の溶融張
力（以下ＭＴという）と密接な関係があり、ＭＴの高い
程垂れは少ないことから、垂れを改良する為にＭＴの高
いポリエチレンを配合する方法が用いられる。しかし、
ポリプロピレンにポリエチレンを配合する場合は両者の
相溶性の低さから、衝撃強度が極端に低下する欠点を有
している。Generally, sagging during heating during vacuum forming is closely related to the melt tension (hereinafter referred to as MT) of the resin, and the higher the MT, the less sagging, so polyethylene with a high MT is blended to improve sagging. A method is used. but,
When polypropylene is blended with polyethylene, the disadvantage is that the impact strength is extremely reduced due to the low compatibility between the two.
本発明は、かかる欠点を改良すべく研究の結果、無機充
填剤含有ポリプロピレンにポリエチレンを配合し更にコ
ポリマーポリプロピレンを添加することにより、真空成
形性に優れかつ耐衝撃性に優れたポリオレフィン樹脂を
得られることを見出した
すなわち、本発明は、充填剤を含有するポリプロピレン
樹脂１００重量部にポリエチレンをｌΩ〜１００重臆部
配合した組成物１００重量部に対し、コポリマーポリプ
ロピレンを１０〜１００重量部添加したことを特徴とす
る特許レフイン樹脂組成物である。As a result of research to improve these drawbacks, the present invention has found that by blending polyethylene with inorganic filler-containing polypropylene and further adding copolymer polypropylene, a polyolefin resin with excellent vacuum moldability and impact resistance can be obtained. That is, in the present invention, 10 to 100 parts by weight of copolymer polypropylene is added to 100 parts by weight of a composition in which 100 parts by weight of polypropylene resin containing a filler is blended with 1 to 100 parts by weight of polyethylene. It is a patented reflex resin composition characterized by:
本発明に於いて無機充填剤のマトリックスとして用いる
ポリプロピレン樹脂はポリプロピレンの単独電合体を用
いることができるが、真空成形）こ於ける加熱時の垂れ
を少なくする為にメルトインデックス（以下Ｍｌという
）が１９７１０ｍ１ｎ以下が好ましい。また、無機充填
剤としてはタルク、クレー、炭酸カルシウム、硫酸カル
シウム、シリカ等が用いられる。これらの充填剤は添加
の効果を発揮させる為にはポリプロピレン樹脂１００重
量部に対し２０〜１００重量部の割合で添加される。In the present invention, the polypropylene resin used as the matrix of the inorganic filler can be a homopolymer of polypropylene, but in order to reduce sagging during heating during vacuum forming, the melt index (hereinafter referred to as Ml) is It is preferably 19710 m1n or less. Further, as the inorganic filler, talc, clay, calcium carbonate, calcium sulfate, silica, etc. are used. These fillers are added in an amount of 20 to 100 parts by weight per 100 parts by weight of the polypropylene resin in order to exhibit the effect of addition.
上記無機充填剤含有ポリプロピレン樹脂に配合するポリ
エチレンは高密度ポリエチレン、低密度ポリエチレ／の
区別なく用いることができるか、流動特性を考慮してＭ
Ｉが０１〜α２ｇ／１０ｍ１ｎ 程度が好ましい。The polyethylene to be blended with the above inorganic filler-containing polypropylene resin can be used regardless of whether it is high density polyethylene or low density polyethylene.
It is preferable that I is about 01 to α2 g/10 m1n.
ポリエチレンの配合量は多くなる＄こ従い真空成彩時の
垂れは減少する半面、衝撃強度及び熱変形温度が低下す
る不具合を生じる。好適な添加重量部に対し、１０〜１
００重量部である。As the amount of polyethylene increases, the sagging during vacuum painting decreases, but this causes problems such as a decrease in impact strength and heat distortion temperature. 10 to 1 part by weight of suitable addition
00 parts by weight.
また、コポリマーポリプロピレンはブロックコポリマー
、ランダムコポリマーの区別な（用い得る。これらコポ
リマーポリプロピレンの添加量は多くなる程衝撃強度は
増す半面、垂れが多くなる欠点である。好適な添加量は
無機充填剤含有ポリプロピレン樹脂にポリエチレンを所
定量配合した前記組成物１００重量部に対し、１０〜１
００重量部である。In addition, copolymer polypropylene can be used without distinguishing between block copolymer and random copolymer.The larger the amount of these copolymer polypropylene added, the higher the impact strength, but the drawback is that it causes more sag.The preferred amount of addition is the inorganic filler content. 10 to 1 part by weight of the above composition in which a predetermined amount of polyethylene is blended with polypropylene resin.
00 parts by weight.
次に、本発明の詳細な説明する。Next, the present invention will be explained in detail.
実施例１
タルク充填ポリプロピレン（Ｍ Ｉ ＝０３）１００重
量部
高密度ポリエチレン（ＭＩ＝（１２）
３３重皿部
コポリマーポリプロピレン（ＭＩ＝α５）３３重量部
上記の割合の配合物を２軸混線押出機にて１１＠厚の平
板に押出し、真空成形加熱時の垂れ及びアイゾツト衝撃
強度を測定した。結・果を第１表に示す。Example 1 100 parts by weight of talc-filled polypropylene (MI = 03) 33 parts by weight of high-density polyethylene (MI = (12) 33 parts by weight of copolymer polypropylene (MI = α5) The sample was extruded into a 11@th thick flat plate, and the sagging and Izot impact strength during vacuum forming and heating were measured.The results are shown in Table 1.
比較のため、上記実施例１に於いて高密度ポリエチレン
を加えずコポリマーポリプロピレンの配合量を２倍にし
た場合（比較例１）及びコポリマーポリプロピレンを加
えず高密度ポリエチレンの配合量を２倍にした場合（比
較例２）の測定結果を同様に第１表に示す。比較例電比
べて本発明品は衝撃強度、真空成形性に優れることか判
る。For comparison, in Example 1 above, high density polyethylene was not added and the amount of copolymer polypropylene was doubled (Comparative Example 1), and copolymer polypropylene was not added and the amount of high density polyethylene was doubled. The measurement results for the case (Comparative Example 2) are also shown in Table 1. It can be seen that the product of the present invention has excellent impact strength and vacuum formability when compared with the comparative example.
第 １ 表
実施例２
タルク充填ポリプロピレン（Ｍ Ｉ ＝α３）１００重
量部
高密度ポリエチレン（Ｍ １ ＝α２）５０重量部
コポリマーポリプロピレン（Ｍ Ｉ ＝α５）１７重量
部
上記の割合の配合物を用いて実施例】と同様に平板を押
出し、それを測定した結果を第１表に示す。Table 1 Example 2 100 parts by weight of talc-filled polypropylene (M I =α3) 50 parts by weight of high-density polyethylene (M 1 =α2) 17 parts by weight of copolymer polypropylene (M I =α5) A flat plate was extruded in the same manner as in Example] and the results of measurements are shown in Table 1.
実施例３
タルク充填ポリプロピレン（Ｍ １ ＝α３）１００重
量部
高密度ポリエチレン（Ｍ Ｉ ＝α２）１７重量部
コポリマーポリプロピレン（ＭＩ＝０．５）５０重量部
上記の割合の配合物を用いて実施例１と開本
様に平板を押し、それを測定した結果を第１△
表に示す。Example 3 100 parts by weight of talc-filled polypropylene (M 1 =α3) 17 parts by weight of high-density polyethylene (M I =α2) 50 parts by weight of copolymer polypropylene (MI = 0.5) Example using a formulation in the above proportions 1 and the flat plate was pressed in the open direction, and the results of the measurements are shown in Table 1.
■−述のことから明らかなよう番こ本発明によ・れば、
（リ 真空成形時の加熱による垂れ下がりが小さいノー
トが得られ、その結果、真空成形性が（２）剛性と耐衝
撃性のバランスのとれた性能を有する組成物が得られる
。■- According to the present invention, it is clear from the above that (i) a notebook with less sagging due to heating during vacuum forming can be obtained, and as a result, vacuum formability is improved (2) rigidity and impact resistance A composition with balanced performance is obtained.
等その工業的価値は極めて大なるものである。Its industrial value is extremely great.
特許出願人 新神戸電機株式会社patent applicant Shin-Kobe Electric Co., Ltd.
Claims (1)
にポリエチレンを１０〜１００重社部を配合した組成物
１００重量部に対し、更にコポリマーポリプロピレンを
１０〜１００重量部添加したことを特徴とするポリオレ
フィン樹脂組成物。A polyolefin resin composition characterized in that 10 to 100 parts by weight of a copolymer polypropylene is further added to 100 parts by weight of a composition in which 10 to 100 parts by weight of polyethylene is blended with 100 parts by weight of a polypropylene resin containing an inorganic filler. thing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2393982A JPS58141228A (en) | 1982-02-17 | 1982-02-17 | Polyolefin resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2393982A JPS58141228A (en) | 1982-02-17 | 1982-02-17 | Polyolefin resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58141228A true JPS58141228A (en) | 1983-08-22 |
| JPS6328457B2 JPS6328457B2 (en) | 1988-06-08 |
Family
ID=12124493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2393982A Granted JPS58141228A (en) | 1982-02-17 | 1982-02-17 | Polyolefin resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58141228A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51133344A (en) * | 1975-05-14 | 1976-11-19 | Idemitsu Kosan Co Ltd | An impact-resistant polypropylene resin composition |
| JPS53108146A (en) * | 1977-03-03 | 1978-09-20 | Sumitomo Chem Co Ltd | Resin compositon |
| JPS553467A (en) * | 1978-06-23 | 1980-01-11 | Sumitomo Chem Co Ltd | Oriented polypropylene film |
| JPS5688447A (en) * | 1979-12-21 | 1981-07-17 | Mitsubishi Petrochem Co Ltd | Propylene polymer composition containing inorganic filler |
-
1982
- 1982-02-17 JP JP2393982A patent/JPS58141228A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51133344A (en) * | 1975-05-14 | 1976-11-19 | Idemitsu Kosan Co Ltd | An impact-resistant polypropylene resin composition |
| JPS53108146A (en) * | 1977-03-03 | 1978-09-20 | Sumitomo Chem Co Ltd | Resin compositon |
| JPS553467A (en) * | 1978-06-23 | 1980-01-11 | Sumitomo Chem Co Ltd | Oriented polypropylene film |
| JPS5688447A (en) * | 1979-12-21 | 1981-07-17 | Mitsubishi Petrochem Co Ltd | Propylene polymer composition containing inorganic filler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6328457B2 (en) | 1988-06-08 |
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