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JPH07712B2 - Inorganic filler-containing polyolefin resin composition - Google Patents

Inorganic filler-containing polyolefin resin composition

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Publication number
JPH07712B2
JPH07712B2 JP60226173A JP22617385A JPH07712B2 JP H07712 B2 JPH07712 B2 JP H07712B2 JP 60226173 A JP60226173 A JP 60226173A JP 22617385 A JP22617385 A JP 22617385A JP H07712 B2 JPH07712 B2 JP H07712B2
Authority
JP
Japan
Prior art keywords
inorganic filler
resin composition
polyolefin 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.)
Expired - Lifetime
Application number
JP60226173A
Other languages
Japanese (ja)
Other versions
JPS6286037A (en
Inventor
阿部  勝
洋一 河合
実 星野
克巳 関口
Original Assignee
三井東圧化学株式会社
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 三井東圧化学株式会社 filed Critical 三井東圧化学株式会社
Priority to JP60226173A priority Critical patent/JPH07712B2/en
Publication of JPS6286037A publication Critical patent/JPS6286037A/en
Publication of JPH07712B2 publication Critical patent/JPH07712B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は無機フィラー含有ポリオレフィン樹脂組成物に
関し、詳しくは、特定の方法により表面処理された無機
フィラーをポリオレフィン樹脂に配合してなり、剛性、
耐衝撃性、耐熱性、表面特性等の物性バランスに優れた
樹脂組成物に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an inorganic filler-containing polyolefin resin composition, and more specifically, it is prepared by blending an inorganic filler surface-treated by a specific method with a polyolefin resin to obtain rigidity,
The present invention relates to a resin composition having an excellent balance of physical properties such as impact resistance, heat resistance and surface characteristics.

〔従来の技術〕[Conventional technology]

ポリオレフィンに各種無機フィラーを配合して剛性、耐
熱性等を改善することは以前から広く行われており、特
に無機フィラーの表面を各種処理剤で表面処理し、ポリ
オレフィンとの親和性、分散性を改善させることによっ
て、剛性、耐衝撃性との物性バランスをより向上させる
ことも広く知られている。
It has been widely practiced to improve rigidity, heat resistance, etc. by blending various inorganic fillers with polyolefin. Especially, the surface of the inorganic filler is treated with various treatment agents to improve the affinity and dispersibility with polyolefin. It is also widely known that the improvement can improve the balance of physical properties such as rigidity and impact resistance.

そして、無機フィラーの表面改質方法としては、無機フ
ィラーと各種表面処理剤、あるいは必要に応じて各種の
溶剤をヘンシェルミキサー等に仕込み、常温あるいは高
温の条件下で攪拌することにより、化学的または物理的
に表面処理する方法がよく知られている。
Then, as a method for modifying the surface of the inorganic filler, the inorganic filler and various surface treatment agents, or if necessary, various solvents are charged into a Henschel mixer or the like, and stirred chemically or at room temperature or at high temperature. Physically surface-treating methods are well known.

〔発明が解決しようとする問題点〕[Problems to be solved by the invention]

しかしながら、この様な方法で表面処理した無機フィラ
ーを含有したポリオレフィン樹脂組成物は、剛性、耐衝
撃性、耐熱性等の諸物性は、ある程度改善されるもの
の、未だ充分とは言えず、また無機フィラーの種類によ
っては、全く効果がなかったり、かえって剛性が低下す
る場合もある。また、表面処理工程が煩雑なため、生産
性、安全性等の点で問題があり、コスト的にも高くなる
という欠点を有していた。
However, the polyolefin resin composition containing an inorganic filler surface-treated by such a method is not sufficiently satisfactory, although the physical properties such as rigidity, impact resistance and heat resistance are improved to some extent. Depending on the type of filler, there may be no effect or the rigidity may be reduced. Further, since the surface treatment process is complicated, there are problems in terms of productivity, safety and the like, and there is a drawback that the cost becomes high.

本発明は、上記の如き欠点を解決した無機フィラー含有
ポリオレフィン樹脂組成物を提供することを目的とす
る。
An object of the present invention is to provide an inorganic filler-containing polyolefin resin composition which has solved the above-mentioned drawbacks.

〔問題を解決するための手段〕[Means for solving problems]

本発明者らは上記目的達成のために、鋭意検討し、遂に
本発明を完成するに至った。。
The present inventors have conducted earnest studies to achieve the above object, and finally completed the present invention. .

すなわち、本発明は、無機フィラーを5〜50重量%含む
と共に、無機フィラー100重量部に対して0.01〜5重量
部の表面処理剤を含むポリオレフィン樹脂組成物であっ
て、前記、無機フィラーが前記表面処理剤と共に乾式な
いし半乾式の粉砕機により粉砕ないし処理されたもので
ある無機フィラー含有ポリオレフィン樹脂組成物におい
て、前記粉砕機がジェット粉砕機であることを特徴とす
る無機フィラー含有ポリオレフィン樹脂組成物である。
That is, the present invention is a polyolefin resin composition containing 5 to 50% by weight of an inorganic filler and 0.01 to 5 parts by weight of a surface treatment agent with respect to 100 parts by weight of the inorganic filler, wherein the inorganic filler is Inorganic filler-containing polyolefin resin composition that is pulverized or processed by a dry or semi-dry pulverizer together with a surface treatment agent, wherein the pulverizer is a jet pulverizer. Is.

本発明で用いるポリオレフィン樹脂とは、エチレン、プ
ロピレン等のα−オレフィンの単独重合体、あるいは2
種以上の共重合体、およびこれら重合体の混合物であ
る。
The polyolefin resin used in the present invention is a homopolymer of α-olefin such as ethylene or propylene, or 2
It is a copolymer of one or more kinds, and a mixture of these polymers.

本発明において用いる無機フィラーとは、例えば酸化カ
ルシウム、酸化マグネシウム、水酸化カルシウム、水酸
化マグネシウム、水酸化アルミニウム、炭酸カルシウ
ム、炭酸マグネシウム、ケイ酸カルシウム、ケイ酸マグ
ネシウム、硫酸カルシウム、硫酸バリウム、亜硫酸カル
シウム、タルク、マイカ、クレー、ドロマイト、塩基性
炭酸マグネシウム、ガラス等が挙げられるが、中でもタ
ルクの使用が最も好ましい。
Examples of the inorganic filler used in the present invention include calcium oxide, magnesium oxide, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, calcium carbonate, magnesium carbonate, calcium silicate, magnesium silicate, calcium sulfate, barium sulfate, calcium sulfite. , Talc, mica, clay, dolomite, basic magnesium carbonate, glass, etc., among which talc is most preferably used.

本発明において用いる無機フィラーの粒径としては、そ
の種類及び使用量によって異なるが、処理の均一さ、樹
脂とのなじみ、及び樹脂組成物での物性バラス等から、
処理後の平均粒径が10μm以下が好ましく、8μm以下
がより好ましい。
The particle size of the inorganic filler used in the present invention, depending on the type and amount used, uniformity of treatment, familiarity with the resin, and the physical property variation in the resin composition, etc.,
The average particle size after the treatment is preferably 10 μm or less, more preferably 8 μm or less.

本発明において、無機フィラーの含有量は5〜50重量%
が好ましく、5重量%未満であると、得られる組成物の
剛性、耐熱性、表面特性の改善効果が小さく、50重量%
を越えると、耐衝撃性が低下するために、いずれの場合
も好ましくない。
In the present invention, the content of the inorganic filler is 5 to 50% by weight
Is preferable, and when it is less than 5% by weight, the effect of improving the rigidity, heat resistance and surface properties of the obtained composition is small and 50% by weight is obtained.
If it exceeds the range, the impact resistance is lowered, so that it is not preferable in any case.

本発明で用いる表面処理剤としては、有機シラン系又は
チタニウム系カップリング剤、各種界面活性剤、シリコ
ンオイル、各種シラン化合物、金属セッケン、高級アル
コール、ポリオレフィン、不飽和カルボン酸変性ポリオ
レフィン等が挙げられる。
Examples of the surface treatment agent used in the present invention include organic silane-based or titanium-based coupling agents, various surfactants, silicone oil, various silane compounds, metal soaps, higher alcohols, polyolefins, unsaturated carboxylic acid-modified polyolefins, and the like. .

又、無機フィラーと表面処理剤との割合は、無機フィラ
ー100重量部に対して0.01〜5重量部程度である。すな
わち、表面処理効果を大きくする点で0.01重量部以上が
好ましく、一方、得られる樹脂組成物の剛性、耐衝撃
性、耐熱性、表面特性等の物性バランスの向上の点で5
重量部以下が好ましい。そして、5重量部を越えると、
かえって剛性、耐衝撃性等が低下する場合があるばかり
でなく、コストも高くなるので、いずれにしても好まし
くない。
Further, the ratio of the inorganic filler and the surface treatment agent is about 0.01 to 5 parts by weight with respect to 100 parts by weight of the inorganic filler. That is, 0.01 part by weight or more is preferable from the viewpoint of increasing the surface treatment effect, and 5 on the other hand from the viewpoint of improving the balance of physical properties such as rigidity, impact resistance, heat resistance and surface characteristics of the obtained resin composition.
It is preferably less than or equal to parts by weight. And when it exceeds 5 parts by weight,
On the contrary, the rigidity, impact resistance, etc. may decrease, and the cost also increases, which is not preferable in any case.

これら無機フィラーの表面処理は、無機フィラーと表面
処理剤を予備混合し、あるいは別々に粉砕機に供給し、
粉砕と同時に表面処理を行うことによってできる。
The surface treatment of these inorganic fillers, pre-mixing the inorganic filler and the surface treatment agent, or separately supplied to the crusher,
This can be done by performing surface treatment simultaneously with pulverization.

ここで、上記粉砕機としては、表面処理がより均一に行
われる流動層型ジェット粉砕機が用いられる。
Here, as the crusher, a fluidized bed jet crusher is used, which is more uniformly surface-treated.

本発明においては、酸化防止剤、滑剤、紫外線吸収剤、
紫外線安定剤、熱安定剤、帯電防止剤、核剤、有機、無
機顔料等の各種添加剤を単独あるいは併用して添加して
もよい。これら各種添加剤の例としてはポリオレフィン
樹脂に通常添加されるものを挙げることができ、本発明
の効果を著しく損なわない範囲で用いればよい。又必要
に応じて、本発明で用いるポリオレフィン樹脂以外の樹
脂を併用することもできる。
In the present invention, an antioxidant, a lubricant, an ultraviolet absorber,
Various additives such as ultraviolet stabilizers, heat stabilizers, antistatic agents, nucleating agents, organic and inorganic pigments may be added alone or in combination. Examples of these various additives include those usually added to polyolefin resins, and they may be used within a range that does not significantly impair the effects of the present invention. If necessary, a resin other than the polyolefin resin used in the present invention can be used in combination.

本発明の樹脂組成物は、通常は該成分をあらかじめヘン
シェルミキサー等で予備混合後、1軸あるいは2軸押出
機等で溶融混練してペレット化することにより得られ、
該ペレットを用いて押出成形、射出成形、回転成形、圧
縮成形等の成形方法により製品に成形しうる。
The resin composition of the present invention is usually obtained by premixing the components in advance with a Henschel mixer or the like, and then melt-kneading with a uniaxial or biaxial extruder or the like to form pellets,
The pellets can be molded into a product by a molding method such as extrusion molding, injection molding, rotational molding, compression molding or the like.

〔発明の効果〕〔The invention's effect〕

本発明による無機フィラー含有ポリオレフィン樹脂組成
物は、剛性、耐衝撃性、耐熱性、表面特性等の物性バラ
ンスに優れており、これにより、自動車部品、家電部品
等の工業部品用に適する。
The inorganic filler-containing polyolefin resin composition according to the present invention has an excellent balance of physical properties such as rigidity, impact resistance, heat resistance, and surface characteristics, and is suitable for industrial parts such as automobile parts and home electric appliance parts.

〔実施例〕〔Example〕

以下実施例によって本発明を具体的に説明する。 The present invention will be specifically described below with reference to examples.

以下の記載において、メルトフローインデックス(MI)
はASTM D-1238,曲げ弾性率はASTM D-790,I zod衝撃強度
はASTM D-256,過熱変形温度はASTM D-648に従って測定
した。
In the following description, melt flow index (MI)
Was measured according to ASTM D-1238, flexural modulus was measured according to ASTM D-790, I zod impact strength was measured according to ASTM D-256, and overheat deformation temperature was measured according to ASTM D-648.

又、表面特性については、次の方法により目視により判
定した。
The surface characteristics were visually determined by the following method.

サンプル 80×160×2mmのシボ付き平板(但しベンガ
ラ:カーボンブラック=5:1の顔料1重量部にて着色) シボ形状 凸部面積約3mm2の楕円状 深さ約0.1mm 測定方法 JIS-K 5401に示される鉛筆引掻試験装置に
て、鉛筆の代わりに先端部0.5Rの真鍮棒を取付け、荷重
1.0kgにて上記サンプルの表面に傷を付け、その受傷の
程度を判定した。
Sample 80 × 160 × 2mm flat plate with wrinkles (However, red iron oxide: carbon black = 5: 1 pigmented with 1 part by weight of pigment) Wrinkle shape Convex area about 3mm 2 oval depth about 0.1mm Measuring method JIS-K With the pencil scratch tester shown in 5401, attach a brass rod with a tip of 0.5R instead of a pencil, and load it.
The surface of the sample was scratched with 1.0 kg, and the degree of damage was determined.

判定基準 ◎:傷付き全く認められない ○: 〃 ほとんど認められない △: 〃 やや認められる ×: 〃 認められる 〈表面処理無機フィラーの製造〉 (1) 原料 タルク;平均粒子径約10μmの通常の粒度分布を有する
もの マイカ;平均粒子径約15μmの通常の粒度分布を有する
もの 炭酸カルシウム;平均粒子径約3μmの重質炭酸カルシ
ウム (2) 粉砕機及び粉砕条件 粉砕機;流動層式カウンタージェットミル(西独アルピ
ネ社製400AFG型) 粉砕条件 風 量;1620m3/Hr 粉砕圧;6kg/cm2(圧縮空気を用いた) 分級機回転数;4000rpm (3) 表面処理剤および添加量 表1に示す。
Judgment Criteria ◎: No scratches are observed ○: 〃 Almost not observed △: 〃 Somewhat recognized ×: 〃 Accepted <Manufacture of surface-treated inorganic filler> (1) Raw material talc Those having a particle size distribution Mica; those having a normal particle size distribution with an average particle size of about 15 μm Calcium carbonate; Heavy calcium carbonate with an average particle size of about 3 μm (2) Crusher and crushing conditions Crusher; Fluidized bed counter jet mill (West German Alpine Co., 400AFG type) Grinding conditions Air volume: 1620m 3 / Hr Grinding pressure: 6kg / cm 2 Classifier rotation speed: 4000rpm (3) Surface treatment agent and addition amount .

(4) 処理方法 上記(1)記載の原料及び(3)記載の表面処理剤を
(2)記載の粉砕機に別々にフィードしながら粉砕、表
面処理を行った。
(4) Treatment method The raw material described in (1) and the surface treatment agent described in (3) were separately fed to the pulverizer described in (2) to carry out pulverization and surface treatment.

実施例及び比較例 エチレン含量6.8重量%、MI 8g/10minのエチレン・プロ
ピレンブロック共重合体(PP)、密度0.963、MI 8g/10m
inの高密度ポリエチレン(PE)に、無機フィラーA〜L
を表2〜4に示す比率にて、少量の酸化防止剤、金属セ
ッケン等を添加し、ヘンシェルミキサーで混合後、230
℃で40mmφ1軸押出機にてペレット化を行い、得られた
ペレットを射出成形機にて230℃で所定の試験片に成形
し、諸物性を測定した。
Examples and Comparative Examples Ethylene content of 6.8% by weight, ethylene / propylene block copolymer (PP) with MI 8g / 10min, density 0.963, MI 8g / 10m
In high density polyethylene (PE) with inorganic fillers A to L
In the proportions shown in Tables 2 to 4, small amounts of antioxidants, metal soaps, etc. are added, and after mixing with a Henschel mixer,
Pelletization was carried out at 40 ° C using a 40 mmφ uniaxial extruder, and the obtained pellets were molded into predetermined test pieces at 230 ° C by an injection molding machine, and various physical properties were measured.

得られた結果を表2〜4に示す。The obtained results are shown in Tables 2-4.

表2〜4からも明らかなように、本発明による場合の
み、曲げ弾性、衝撃強度、熱変形耐性および表面特性の
全てが良好であることが判る。
As is clear from Tables 2 to 4, only in the case of the present invention, all of the bending elasticity, impact strength, thermal deformation resistance and surface properties are good.

比較例8 実施例1において、粉砕機を「流動層式カウンタージェ
ットミル」から「外径20cmの磁製ボールミルに入れ、同
時に12mm磁表球15個、8mm磁表球20個を入れ、回転機に
設置して室温で6時間ボールミル粉砕」することに代え
たことのみ異ならせところ、 MI 7.8g/10min 曲げ弾性率 30500Kg/cm2 Izod衝撃強度(23℃) 4.5Kg・cm/cm 加熱変形温度(4.6Kg/cm2) 135℃ 表面特性 ○ という物性測定結果であった。
Comparative Example 8 In Example 1, the crusher was put from the “fluidized bed counter jet mill” into a porcelain ball mill with an outer diameter of 20 cm, and 15 mm 12 mm magnetic balls and 20 8 mm magnetic spheres were simultaneously put in the rotator Except that it was installed in a ball mill and crushed at room temperature for 6 hours. ”MI 7.8g / 10min Flexural modulus 30500Kg / cm 2 Izod Impact strength (23 ℃) 4.5Kg ・ cm / cm Heat distortion temperature (4.6 Kg / cm 2 ) 135 ℃ Surface property ○ It was the physical property measurement result.

このように、本発明の粉砕機によらない例の場合、前記
比較例7と同様に、Izod衝撃強度及び表面特性に劣るこ
とが判る。
As described above, it can be seen that, in the case of the example not using the crusher of the present invention, the Izod impact strength and the surface characteristics are inferior, as in Comparative Example 7.

比較例9 実施例1において、粉砕機を「流動層式カウンタージェ
ットミル」から「下記表5記載の粉砕機を用いて同等の
粉砕条件で粉砕」することに代えたことのみ異ならせ
た。結果を同表に示す。
Comparative Example 9 The only difference was that in Example 1, the crusher was changed from "a fluidized bed counter jet mill" to "crushing under the same crushing conditions using a crusher shown in Table 5 below". The results are shown in the table.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】無機フィラーを5〜50重量%含むと共に、
無機フィラー100重量部に対して0.01〜5重量部の表面
処理剤を含むポリオレフィン樹脂組成物であって、前記
無機フィラーが前記表面処理剤と共に乾式ないし半乾式
の粉砕機により粉砕ないし処理されたものである無機フ
ィラー含有ポリオレフィン樹脂組成物において、前記粉
砕機が流動層型ジェット粉砕機であることを特徴とする
無機フィラー含有ポリオレフィン樹脂組成物。
1. Including 5 to 50% by weight of an inorganic filler,
A polyolefin resin composition containing 0.01 to 5 parts by weight of a surface treatment agent with respect to 100 parts by weight of an inorganic filler, wherein the inorganic filler is pulverized or treated together with the surface treatment agent by a dry or semi-dry pulverizer. In the inorganic filler-containing polyolefin resin composition, the crusher is a fluidized bed jet crusher.
JP60226173A 1985-10-11 1985-10-11 Inorganic filler-containing polyolefin resin composition Expired - Lifetime JPH07712B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60226173A JPH07712B2 (en) 1985-10-11 1985-10-11 Inorganic filler-containing polyolefin resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60226173A JPH07712B2 (en) 1985-10-11 1985-10-11 Inorganic filler-containing polyolefin resin composition

Publications (2)

Publication Number Publication Date
JPS6286037A JPS6286037A (en) 1987-04-20
JPH07712B2 true JPH07712B2 (en) 1995-01-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP60226173A Expired - Lifetime JPH07712B2 (en) 1985-10-11 1985-10-11 Inorganic filler-containing polyolefin resin composition

Country Status (1)

Country Link
JP (1) JPH07712B2 (en)

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JPS5943057B2 (en) * 1980-07-03 1984-10-19 三菱油化株式会社 Inorganic filler-containing resin composition
JPS6064647A (en) * 1983-09-19 1985-04-13 フロイント産業株式会社 Coaching method and device
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JPS61276902A (en) * 1985-06-01 1986-12-06 Miyoshi Kasei:Kk Production of surface-treated powder
JPS6251609A (en) * 1985-08-30 1987-03-06 Miyoshi Kasei:Kk Production of cosmetic
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108659575A (en) * 2018-05-28 2018-10-16 池州市金艺化工有限公司 A kind of superfine heavy calcium carbonate filler and preparation method thereof

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