JP2005314490A5 - - Google Patents
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- JP2005314490A5 JP2005314490A5 JP2004131734A JP2004131734A JP2005314490A5 JP 2005314490 A5 JP2005314490 A5 JP 2005314490A5 JP 2004131734 A JP2004131734 A JP 2004131734A JP 2004131734 A JP2004131734 A JP 2004131734A JP 2005314490 A5 JP2005314490 A5 JP 2005314490A5
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- -1 polypropylene Polymers 0.000 claims description 15
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 239000011342 resin composition Substances 0.000 claims description 12
- 229920001384 propylene homopolymer Polymers 0.000 claims description 9
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 7
- 239000005977 Ethylene Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000002667 nucleating agent Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 230000001954 sterilising effect Effects 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 238000010894 electron beam technology Methods 0.000 claims 1
- 230000005251 gamma ray Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 229940071643 prefilled syringe Drugs 0.000 claims 1
- 239000003963 antioxidant agent Substances 0.000 description 10
- 230000003078 antioxidant effect Effects 0.000 description 10
- 239000000155 melt Substances 0.000 description 9
- 150000001412 amines Chemical class 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000001460 carbon-13 nuclear magnetic resonance spectrum Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- FXDGCBFGSXNGQD-FAESFXMKSA-L disodium;(1s,2s,3r,4r)-bicyclo[2.2.1]heptane-2,3-dicarboxylate Chemical compound [Na+].[Na+].C1C[C@H]2[C@@H](C([O-])=O)[C@@H](C(=O)[O-])[C@@H]1C2 FXDGCBFGSXNGQD-FAESFXMKSA-L 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 125000001841 imino group Chemical group [H]N=* 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 1
- STEYNUVPFMIUOY-UHFFFAOYSA-N 4-Hydroxy-1-(2-hydroxyethyl)-2,2,6,6-tetramethylpiperidine Chemical compound CC1(C)CC(O)CC(C)(C)N1CCO STEYNUVPFMIUOY-UHFFFAOYSA-N 0.000 description 1
- MUXOBHXGJLMRAB-UHFFFAOYSA-N Dimethyl succinate Chemical compound COC(=O)CCC(=O)OC MUXOBHXGJLMRAB-UHFFFAOYSA-N 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- XITRBUPOXXBIJN-UHFFFAOYSA-N bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)NC(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)NC(C)(C)C1 XITRBUPOXXBIJN-UHFFFAOYSA-N 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- JFHGLVIOIANSIN-UHFFFAOYSA-N dimethyl butanedioate;1-(2-hydroxyethyl)-2,2,6,6-tetramethylpiperidin-4-ol Chemical compound COC(=O)CCC(=O)OC.CC1(C)CC(O)CC(C)(C)N1CCO JFHGLVIOIANSIN-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical class C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000012812 general test Methods 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000003386 piperidinyl group Chemical group 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- ZHROMWXOTYBIMF-UHFFFAOYSA-M sodium;1,3,7,9-tetratert-butyl-11-oxido-5h-benzo[d][1,3,2]benzodioxaphosphocine 11-oxide Chemical compound [Na+].C1C2=CC(C(C)(C)C)=CC(C(C)(C)C)=C2OP([O-])(=O)OC2=C1C=C(C(C)(C)C)C=C2C(C)(C)C ZHROMWXOTYBIMF-UHFFFAOYSA-M 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Description
本発明に係る第１のポリプロピレン樹脂組成物は、（i）メルトフローレイトが１５〜
４５ｇ／１０分、（ii）メソペンタッド分率ｍｍｍｍが０．９７０以上である結晶性プロピレン単独重合体（Ａ１）１００重量部に対し、下記一般式（１）で表わされる化合物を主成分とする造核剤（Ｂ１）を０．０５〜０．３重量部配合してなるポリプロピレン樹脂組成物（Ｉ）である。
The first polypropylene resin composition according to the present invention has (i) a melt flow rate of 15 to
45 g / 10 min, and (ii) 100 parts by weight of a crystalline propylene homopolymer ( A1 ) having a mesopentad fraction mmmm of 0.970 or more, a structure mainly composed of a compound represented by the following general formula (1) This is a polypropylene resin composition ( I ) comprising 0.05 to 0.3 parts by weight of a nucleating agent ( B1 ).
（式中、Metalは１価または３価の金属を示す。）
本発明に係る第２のポリプロピレン樹脂組成物は、（i）メルトフローレイトが１５〜
４５ｇ／１０分、（ii）エチレン含量が０．１〜２．０重量％である結晶性エチレン−プロピレンランダム共重合体（Ａ２）１００重量部に対し、前記一般式（Ｉ）で表わされる化合物を主成分とする造核剤（Ｂ１）を０．０５〜０．３重量部配合してなるポリプロピレン樹脂組成物（II）である。
(In the formula, Metal represents a monovalent or trivalent metal.)
The second polypropylene resin composition according to the present invention has (i) a melt flow rate of 15 to
45 g / 10 min, (ii) 100 parts by weight of the crystalline ethylene-propylene random copolymer ( A2 ) having an ethylene content of 0.1 to 2.0% by weight, the compound represented by the general formula (I) It is a polypropylene resin composition (II) formed by blending 0.05 to 0.3 parts by weight of a nucleating agent ( B1 ) containing as a main component .
また、本発明に係るポリプロピレン樹脂組成物（Ｉ）および（II）は、各々（Ａ１）または（Ａ２）１００重量部に対して、さらに、塩酸吸収剤（Ｅ）としての脂肪酸金属塩またはハイドロタルサイト／脂肪酸金属塩混合系を０．０２〜０．１０重量部、リン系酸化防止剤（Ｃ）０．０５〜０．３重量部およびアミン系酸化防止剤（Ｄ）０．０１〜０．３重量部を含有していてもよい。 Further, the polypropylene resin composition according to the present invention (I) and (II) for each (A1) or (A2) 100 parts by weight, further, metal salts of fatty acids, and hydro as hydrochloric acid absorber (E) 0.02 to 0.10 parts by weight of a talcite / fatty acid metal salt mixed system, 0.05 to 0.3 parts by weight of a phosphorus antioxidant (C) and 0.01 to 0 of an amine antioxidant (D) .3 parts by weight may be contained.
結晶性プロピレン単独重合体（Ａ１）
本発明で用いられる結晶性プロピレン単独重合体（Ａ１）は、メルトフローレート（ＭＦＲ；ASTM D 1238，230℃、2.16kg荷重）は、１５〜４５ｇ／１０分、好ましくは２０〜４０ｇ／１０分、さらに好ましくは２２〜２８ｇ／１０分の範囲にある。
Crystalline propylene homopolymer (A1)
Crystalline flop propylene homopolymer used in the present invention (A1), the main belt flow rate (MFR; ASTM D 1238,230 ℃, 2.16kg load), 15~45g / 10 min, preferably 20 to 40 g / It is in the range of 10 minutes, more preferably 22-28 g / 10 minutes.
また、結晶性プロピレン単独重合体（Ａ１）が１３Ｃ−ＮＭＲで測定したアイソタクチックペンタッド分率（ｍｍｍｍ）が、０．９７％以上、好ましくは０．９７〜０．９９であることが望ましい。このメルトフローレートとアイソタクチックペンタッド分率が上記の範囲内にあると、得られるポリプロピレン樹脂組成物の流動性（成形性）とその成形品の特に耐熱性が良好で、しかも、見映えのよい外観を有する成形品が得られる。 It crystalline flop propylene homopolymer (A1) is an isotactic pentad fraction measured by 13 C-NMR (mmmm) is 0.97% or more, preferably from 0.97 to 0.99 Is desirable. When the melt flow rate and the isotactic pentad fraction are within the above ranges, the flowability (moldability) of the resulting polypropylene resin composition and the heat resistance of the molded product are particularly good, and it looks good. A molded article having a good appearance can be obtained.
結晶性エチレン−プロピレンランダム共重合体（Ａ２）
また、本発明で用いられる結晶性エチレン−プロピレンランダム共重合体（Ａ２）は、ｉ）メルトフローレイトが１５〜４５ｇ／１０分、好ましくは２０〜４０ｇ／１０分、さらに好ましくは２２〜２８ｇ／１０分の範囲にある。また、（ii）エチレン含量が０．１〜２．０重量％、好ましくは０．８〜１．８重量％、の範囲にある時、Ａ１より透明性が飛躍的に向上し、且つ第十四改正日本薬局方一般試験法『プラスチック医薬品容器試験法』や『プラスチック製水性注射剤容器基準』における水蒸気滅菌における耐熱性も保持できる更に優れたポリプロピレン樹脂組成物となる。
Crystalline ethylene-propylene random copolymer (A2)
The crystalline ethylene-propylene random copolymer (A2) used in the present invention has i) a melt flow rate of 15 to 45 g / 10 minutes, preferably 20 to 40 g / 10 minutes, and more preferably 22 to 28 g / minute. It is in the range of 10 minutes. Further, (ii) when the ethylene content is in the range of 0.1 to 2.0% by weight, preferably 0.8 to 1.8% by weight, the transparency is dramatically improved over A1, and the tenth It becomes a more excellent polypropylene resin composition that can maintain the heat resistance in steam sterilization in the 4th revised Japanese Pharmacopoeia General Test Methods "Plastic Drug Container Test Method" and "Plastic Water-based Injection Container Standard".
アミン系酸化防止剤（Ｄ）
本発明で必要に応じて用いられる、リン系酸化防止剤（Ｃ）とともに用いることができるアミン系酸化防止剤（Ｄ）としては、ピペリジン環を持つ化合物が例示される。具体的には、コハク酸ジメチル・1-（2-ヒドロキシエチル）-4- ヒドロキシ-2,2,6,6- テトラメチルピペリジン重縮合物、ビス（2,2,6,6-テトラメチル-4- ピペリジル）セバケート、ポリ[6-[1-[(1,1,3,3-テトラメチルブチル)アミノ]-ｓ-トリアジン-2,4-ジイル][（2,2,6,6-テトラメチル-4-ピペリジル）イミノ]ヘキサメチレン[（2,2,6,6-テトラメチル-4-ピペリジル）イミノ]]などが用いられる。
Amine-based antioxidant (D)
Examples of the amine-based antioxidant (D) that can be used together with the phosphorus-based antioxidant (C) used as necessary in the present invention include compounds having a piperidine ring. Specifically, dimethyl succinate / 1- (2-hydroxyethyl) -4-hydroxy-2,2,6,6-tetramethylpiperidine polycondensate, bis (2,2,6,6-tetramethyl- 4-piperidyl) sebacate, Po Li [6- [1 - [(1,1,3,3-tetramethylbutyl) amino] -s-triazine-2,4-diyl] [(2,2,6,6 -Tetramethyl-4-piperidyl) imino] hexamethylene [(2,2,6,6-tetramethyl-4-piperidyl) imino]] and the like.
アミン系酸化防止剤（Ｄ）は、（Ａ１）または（Ａ２）１００重量部に対して、通常０．０１〜０．３重量部、好ましくは０．０１〜０．２重量部、さらに好ましくは０．０１〜０．１重量部、特に好ましくは０．０５〜０．１重量部の割合で用いられる。 The amine-based antioxidant (D) is usually 0.01 to 0.3 parts by weight, preferably 0.01 to 0.2 parts by weight, more preferably 100 parts by weight of ( A1) or (A2). It is used in a proportion of 0.01 to 0.1 parts by weight, particularly preferably 0.05 to 0.1 parts by weight.
前記した（Ａ１）や（Ａ２）、造核剤（Ｂ）および必要に応じて他の添加剤たとえば塩酸吸収剤（Ｅ）、リン系酸化防止剤（Ｃ）、アミン系酸化防止剤（Ｄ）等を、ヘンシェルミキサー、Ｖ型ブレンダー、タンブラーブレンダー、リボンブレンダーなどを用いて混合した後、単軸押出機、多軸押出機、ニーダー、バンバリーミキサーなどを用いて溶融混練することによって、上記各成分および添加剤が均一に分散混合された高品質のポリプロピレン樹脂組成物が得られる。 As described above ( A1) and (A2), nucleating agent (B) and other additives as required, for example, hydrochloric acid absorbent (E), phosphorus antioxidant (C), amine antioxidant (D Etc.) are mixed using a Henschel mixer, V-type blender, tumbler blender, ribbon blender, etc., and then melt-kneaded using a single screw extruder, multi-screw extruder, kneader, Banbury mixer, etc. A high-quality polypropylene resin composition in which components and additives are uniformly dispersed and mixed is obtained.
次に、本発明を実施例により説明するが、本発明は、これらの実施例によって何ら限定されるものではない。なお、実施例等で使用した原料は以下のとおりである。
プロピレン単独重合体（Ａ１−１）：
メルトフローレート（ASTM D 1238，230℃、2.16荷重）が２５ｇ／１０分、１３Ｃ−ＮＭＲスペクトルから求められる、メソペンタッド分率ｍｍｍｍが０．９８３。
プロピレン単独重合体（Ａ１−２）：
メルトフローレート（ASTM D 1238，230℃、2.16荷重）が１２ｇ／１０分、 １３ Ｃ−ＮＭＲスペクトルから求められる、メソペンタッド分率ｍｍｍｍが０．９８３。
プロピレン単独重合体（Ａ１−３）：
メルトフローレート（ASTM D 1238，230℃、2.16荷重）が５０ｇ／１０分、１３Ｃ−ＮＭＲスペクトルから求められる、メソペンタッド分率ｍｍｍｍが０．９８３。
プロピレン単独重合体（Ａ１−４）：
メルトフローレート（ASTM D 1238，230℃、2.16荷重）が２５ｇ／１０分、１３Ｃ−ＮＭＲスペクトルから求められる、メソペンタッド分率ｍｍｍｍが０．９６３。
エチレン−プロピレンランダム共重合体（Ａ２−１）：
メルトフローレート（ASTM D 1238，230℃、2.16荷重）が２５ｇ／１０分、エチレン含有量が１．７ｗｔ％。
エチレン−プロピレンランダム共重合体（Ａ２−２）：
メルトフローレート（ASTM D 1238，230℃、2.16荷重）が１２ｇ／１０分、エチレン含有量が１．７ｗｔ％。
エチレン−プロピレンランダム共重合体（Ａ２−３）：
メルトフローレート（ASTM D 1238，230℃、2.16荷重）が５０ｇ／１０分、エチレン含
有量が１．７ｗｔ％。
エチレン−プロピレンランダム共重合体（Ａ２−４）：
メルトフローレート（ASTM D 1238，230℃、2.16荷重）が２５ｇ／１０分、エチレン含有量が２．６ｗｔ％。
造核剤（Ｂ−１）：
前記一般式（１）で表されるCAS No.351870-33-2を80ｗｔ％、CAS-No.7631-86-9を10ｗｔ％，CAS No.112-84-5を10ｗｔ％フ゛レント゛した物を使用。商品名Milliken Chemical製HPN-68L。
造核剤（Ｂ−２）：
ナトリウム−２，２−メチレンビス（４，６−ジ−tert−ブチルフェニル）ホスフェート
リン系酸化防止剤（Ｃ）：
トリス（2,4-ジ-t- ブチルフェニル）フォスファイト
アミン系酸化防止剤（Ｄ）：
コハク酸ジメチル・1-（2-ヒドロキシエチル）-4- ヒドロキシ-2,2,6,6-テトラメチル
ピペリジン重縮合物。
ハイドロタルサイト（Ｅ−１）：
Ｍｇ4Ａｌ2（ＯＨ）12ＣＯ3・３Ｈ2Ｏで表されるものを使用。
ステアリン酸カルシウム（Ｅ−２）：
EXAMPLES Next, although an Example demonstrates this invention, this invention is not limited at all by these Examples. In addition, the raw material used in the Example etc. is as follows.
Propylene homopolymer (A1-1) :
The melt flow rate (ASTM D 1238, 230 ° C., 2.16 load) is 25 g / 10 min , and the mesopentad fraction mmmm is 0.983 as determined from the 13 C-NMR spectrum.
Propylene homopolymer (A1-2) :
The melt flow rate (ASTM D 1238, 230 ° C., 2.16 load) is 12 g / 10 min, and the mesopentad fraction mmmm is 0.983 determined from 13 C-NMR spectrum .
Propylene homopolymer (A1-3) :
Melt flow rate (ASTM D 1238, 230 ° C., 2.16 load) is 50 g / 10 min , and the mesopentad fraction mmmm is 0.983 determined from 13 C-NMR spectrum.
Propylene homopolymer (A1-4) :
The melt flow rate (ASTM D 1238, 230 ° C., 2.16 load) is 25 g / 10 min , and the mesopentad fraction mmmm is 0.963 as determined from the 13 C-NMR spectrum.
Ethylene-propylene random copolymer (A2-1) :
Melt flow rate (ASTM D 1238, 230 ° C., 2.16 load) is 25 g / 10 min , ethylene content is 1.7 wt%.
Ethylene-propylene random copolymer (A2-2) :
The melt flow rate (ASTM D 1238, 230 ° C., 2.16 load) was 12 g / 10 min , and the ethylene content was 1.7 wt%.
Ethylene-propylene random copolymer (A2-3) :
Melt flow rate (ASTM D 1238, 230 ° C., 2.16 load) is 50 g / 10 min , ethylene content is 1.7 wt%.
Ethylene-propylene random copolymer (A2-4) :
The melt flow rate (ASTM D 1238, 230 ° C., 2.16 load) was 25 g / 10 min , and the ethylene content was 2.6 wt%.
Nucleator (B-1) :
CAS No.351870-33-2 represented by the general formula (1) is 80 wt%, CAS-No.7631-86-9 is 10 wt%, and CAS No.112-84-5 is 10 wt%. use. Product name HPN-68L manufactured by Milliken Chemical.
Nucleator (B-2) :
Sodium-2,2-methylenebis (4,6-di-tert-butylphenyl) phosphate
Phosphorous antioxidant (C) :
Tris (2,4-di-t-butylphenyl) phosphite
Amine-based antioxidant (D) :
Dimethyl succinate 1- (2-hydroxyethyl) -4-hydroxy-2,2,6,6-tetramethylpiperidine polycondensate.
Hydrotalcite (E-1) :
Use one represented by Mg 4 Al 2 (OH) 12 CO 3 .3H 2 O.
Calcium stearate (E-2):
次いで、得られた混合物を、単軸押出機（１００ｍｍφ）を用いて、樹脂温度２２０℃で溶融混練し、その混練物を押出してポリプロピレン樹脂組成物のペレットを得た。次いで、そのペレットを用いて、射出成形により２００℃、金型温度４０℃にて厚み２ｍｍのシート状試験片、曲げ強度試験用の試験片（ＡＳＴＭ Ｄ７９０、厚み３．２ｍｍ、長さ
１２７ｍｍ、幅１２．７ｍｍ）、および加熱変形温度試験用の試験片（ＡＳＴＭ Ｄ６４
８、厚み４．０ｍｍ、長さ１２７ｍｍ、幅１２．７ｍｍ）を作製した。
これら試験片を用いて、前述の方法に従って測定した。
Next, the obtained mixture was melt-kneaded at a resin temperature of 220 ° C. using a single screw extruder (100 mmφ), and the kneaded product was extruded to obtain polypropylene resin composition pellets. Next, using the pellets, a sheet-like test piece having a thickness of 2 mm at 200 ° C. and a mold temperature of 40 ° C. by injection molding, a test piece for bending strength test (ASTM D790, thickness 3.2 mm, length 127 mm, width) 12.7 mm), and test piece for heat distortion temperature test (ASTM D64)
8, a thickness of 4.0 mm, a length of 127 mm, and a width of 12.7 mm).
Using these test pieces, measurement was performed according to the method described above .
Claims (6)
が０．９７０以上である結晶性プロピレン単独重合体（Ａ１）１００重量部に対し、下記一般式（１）で表わされる化合物を主成分とする造核剤（Ｂ１）を０．０５〜０．３重量部配合してなるポリプロピレン樹脂組成物。
The nucleating agent ( B1 ) containing as a main component a compound represented by the following general formula (1) is added to 0.05 to 0.00 per 100 parts by weight of the crystalline propylene homopolymer ( A1 ) having an A of 0.970 or more. A polypropylene resin composition comprising 3 parts by weight.
．０重量％である結晶性エチレン−プロピレンランダム共重合体（Ａ２）１００重量部に対し、下記一般式（１）で表わされる化合物を主成分とする造核剤（Ｂ１）を０．０５〜０．３重量部配合してなるポリプロピレン樹脂組成物。
. 0 is the weight percent crystalline ethylene - propylene random copolymer (A2) relative to 100 parts by weight, 0.05 nucleating agent (B1) composed mainly of a compound represented by the following following general formula (1) A polypropylene resin composition containing 0.3 part by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004131734A JP2005314490A (en) | 2004-04-27 | 2004-04-27 | Polypropylene resin composition and medical equipment therefrom, prefilled syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004131734A JP2005314490A (en) | 2004-04-27 | 2004-04-27 | Polypropylene resin composition and medical equipment therefrom, prefilled syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005314490A JP2005314490A (en) | 2005-11-10 |
| JP2005314490A5 true JP2005314490A5 (en) | 2007-06-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004131734A Withdrawn JP2005314490A (en) | 2004-04-27 | 2004-04-27 | Polypropylene resin composition and medical equipment therefrom, prefilled syringe |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4987339B2 (en) * | 2006-04-05 | 2012-07-25 | 株式会社プライムポリマー | Propylene resin for medical syringe, medical syringe obtained by injection molding thereof, and prefilled syringe preparation |
| JP2008150571A (en) * | 2006-04-26 | 2008-07-03 | Japan Polypropylene Corp | Injection molded article |
| JP2008255326A (en) * | 2006-11-22 | 2008-10-23 | Japan Polypropylene Corp | Propylenic resin composition and its molded article |
| JP2008150580A (en) * | 2006-11-22 | 2008-07-03 | Japan Polypropylene Corp | Dialysis member |
| JP5433196B2 (en) * | 2007-10-12 | 2014-03-05 | 日本ポリプロ株式会社 | Medical polypropylene resin composition and molded product |
| US11485807B2 (en) | 2016-04-28 | 2022-11-01 | Sumitomo Chemical Company, Limited | Polypropylene resin composition, precision-injection-molded object, mold for molding optical member, and process for producing optical member |
-
2004
- 2004-04-27 JP JP2004131734A patent/JP2005314490A/en not_active Withdrawn
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