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公开(公告)号:US06414088B1
公开(公告)日:2002-07-02
申请号:US09609328
申请日:2000-06-30
申请人: Yasuo Tanaka , Mamoru Kagami , Masahiro Sugi
发明人: Yasuo Tanaka , Mamoru Kagami , Masahiro Sugi
IPC分类号: C08L2300
CPC分类号: C08J5/18 , C08J2323/08 , C08L23/04 , C08L23/0815 , C08L2205/02 , C08L2314/06 , C08L2666/04
摘要: The resin composition of the invention is a composition which includes 100 parts by weight of a polyethylene resin (A) and 2 to 5,000 parts by weight of a linear ethylene/a-olefin random copolymer (B) which includes ethylene and an a-olefin of 6 to 20 carbon atoms, wherein the polyethylene resin (A) has (a) MFR (ASTM D 1238, 190° C., load of 2.16 kg) of 0.1 to 200 g/10 min and (b) a density of 0.901 to 0.970 g/cm3; and the copolymer (B) has (a) a density of 0.870 to 0.900 g/cm3, (b) an intrinsic viscosity (&eegr;), as measured in decalin at 135° C., of 0.3 to 3.0 dl/g, (c) a glass transition temperature (Tg) of not higher than −50° C., (d) a crystallinity, as measured by X-ray diffractometry, of less than 40%, (e) a molecular weight distribution (Mw/Mn), as measured by GPC, of not more than 3.0, (f) a B value, as determined by the 13C-NMR spectrum and a specific equation, of 1.0 to 1.4, and (g) a ratio g&eegr;* of more than 0.95 (g&eegr;*=(&eegr;)/(&eegr;)blank/ (&eegr;): intrinsic viscosity of this copolymer determined in the property (b), (&eegr;)blank: intrinsic viscosity of a linear ethylene/propylene copolymer having the same weight-average molecular weight (measured by a light scattering method) as this copolymer and having an ethylene content of 70% by mol). This resin composition can provide molded products of excellent pliability and tensile properties.
摘要翻译: 本发明的树脂组合物是包含100重量份的聚乙烯树脂(A)和2至5,000重量份的线性乙烯/α-烯烃无规共聚物(B)的组合物,其包括乙烯和α-烯烃 其中聚乙烯树脂(A)具有(a)MFR(ASTM D 1238,190℃,2.16kg载荷)为0.1-200g / 10min,(b)密度为0.901 至0.970g / cm 3; 共聚物(B)的密度为(a)0.870〜0.900g / cm 3,(b)在135℃萘烷中测定的特性粘度(η)为0.3〜3.0dl / g,(c )玻璃化转变温度(Tg)不高于-50℃,(d)通过X射线衍射测定的结晶度小于40%,(e)分子量分布(Mw / Mn) (f)由13 C-NMR光谱和具体方程式确定的B值为1.0〜1.4,(g)比值geta *大于0.95( geta * =(eta)/(eta)空白/(eta):在(b),(eta)特性中测定的该共聚物的特性粘度:具有相同重均分子量的线性乙烯/丙烯共聚物的特性粘度 重量(通过光散射法测定)作为该共聚物,乙烯含量为70摩尔%)。 该树脂组合物可以提供优异的柔韧性和拉伸性能的成型产品。
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公开(公告)号:US06936660B2
公开(公告)日:2005-08-30
申请号:US10765903
申请日:2004-01-29
申请人: Mamoru Kagami , Yasuo Tanaka , Masahiro Sugi
发明人: Mamoru Kagami , Yasuo Tanaka , Masahiro Sugi
CPC分类号: C08J5/18 , C08J2323/04 , C08L23/04 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2314/06 , C08L2666/04 , C08L2666/06
摘要: Soft resin compositions comprising a polyethylene resin (A) and an ethylene/α-olefin random copolymer (B) comprising ethylene and an α-olefin having 3 to 20 carbon atoms at a specific proportion, or an ethylene/α-olefin copolymer resin composition comprising a linear ethylene/α-olefin copolymer (A-α) comprising ethylene and an α-olefin having 4 to 20 carbon atoms and a long-chain branched ethylene/α-olefin random copolymer (B-α) comprising ethylene and an α-olefin having 3 to 20 carbon atoms in a specific proportion, wherein a density and MFR of the polyethylene resin (A) and the copolymer (A-α), and a density, MFR, intrinsic viscosity, glass transition temperature crystallinity, molecular weight distribution, B value and gη* values of the copolymers (B) and (B-α) are each in a specific range.
摘要翻译: 包含聚乙烯树脂(A)和包含乙烯和碳原子数为特定比例的碳原子数为3-20的α-烯烃的乙烯/α-烯烃无规共聚物(B)的软树脂组合物或乙烯/α-烯烃共聚物树脂组合物 包括包含乙烯和具有4至20个碳原子的α-烯烃的线型乙烯/α-烯烃共聚物(A-α)和包含乙烯和α-烯烃的长支链乙烯/α-烯烃无规共聚物(B-α) 具有特定比例的碳原子数为3〜20的α-烯烃,其中聚乙烯树脂(A)和共聚物(A-α)的密度和MFR,以及密度,MFR,特性粘度,玻璃化转变温度结晶度,分子量 共聚物(B)和(B-α)的分布,B值和geta *值各自在特定范围内。
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公开(公告)号:US06713562B2
公开(公告)日:2004-03-30
申请号:US10133445
申请日:2002-04-29
申请人: Mamoru Kagami , Yasuo Tanaka , Masahiro Sugi
发明人: Mamoru Kagami , Yasuo Tanaka , Masahiro Sugi
IPC分类号: C08L2300
CPC分类号: C08J5/18 , C08J2323/04 , C08L23/04 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2314/06 , C08L2666/04 , C08L2666/06
摘要: Soft resin compositions comprising a polyethylene resin (A) and an ethylene/&agr;-olefin random copolymer (B) comprising ethylene and an &agr;-olefin having 3 to 20 carbon atoms at a specific proportion, or an ethylene/&agr;-olefin copolymer resin composition comprising a linear ethylene/&agr;-olefin copolymer (A-&agr;) comprising ethylene and an &agr;-olefin having 4 to 20 carbon atoms and a long-chain branched ethylene/&agr;-olefin random copolymer (B-&agr;) comprising ethylene and an &agr;-olefin having 3 to 20 carbon atoms in a specific proportion, wherein a density and MFR of the polyethylene resin (A) and the copolymer (A-&agr;), and a density, MFR, intrinsic viscosity, glass transition temperature, crystallinity, molecular weight distribution, B value and g&eegr;* values of the copolymers (B) and (B-&agr;) are each in a specific range.
摘要翻译: 包含聚乙烯树脂(A)和包含乙烯和碳原子数为特定比例的碳原子数为3-20的α-烯烃的乙烯/α-烯烃无规共聚物(B)的软树脂组合物或乙烯/α-烯烃共聚物树脂组合物 包括包含乙烯和具有4至20个碳原子的α-烯烃的线型乙烯/α-烯烃共聚物(A-α)和包含乙烯和α-烯烃的长支链乙烯/α-烯烃无规共聚物(B-α) 具有特定比例的碳原子数为3〜20的α-烯烃,其中聚乙烯树脂(A)和共聚物(A-α)的密度和MFR,以及密度,MFR,特性粘度,玻璃化转变温度,结晶度,分子量 共聚物(B)和(B-α)的重量分布,B值和geta *值各自在特定范围内。
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公开(公告)号:US06686055B2
公开(公告)日:2004-02-03
申请号:US10147088
申请日:2002-05-17
申请人: Yasuo Tanaka , Masahiro Sugi , Mamoru Kagami
发明人: Yasuo Tanaka , Masahiro Sugi , Mamoru Kagami
IPC分类号: B32B2732
CPC分类号: B32B27/08 , B32B27/32 , B32B2250/242 , B32B2307/516 , B32B2307/518 , B32B2307/704 , B32B2439/70 , C08L23/12 , C08L23/142 , C08L2203/16 , C08L2314/06 , Y10S428/91 , Y10S526/943 , Y10T428/31913
摘要: The polypropylene composite film of the present invention comprises (A) a crystalline polypropylene layer and (B) a propylene-1-butene random copolymer layer which is laminated on at least one surface of the crystalline polypropylene layer (A). The propylene/1-butene random copolymer (B) has the following properties: (1) the copolymer comprises 50 to 95% by mol of constituent units derived from propylene and 50 to 5% by mol of constituent units derived from 1-butene, (2) the intrinsic viscosity is 0.1 to 5 dl/g, (3) the molecular weight distribution (Mw/Mn) is not less than 3, and (4) the parameter B value is 1.0 to 1.5. The crystalline polypropylene layer (A) of this composite film may be unstretched, monoaxially stretched or biaxially oriented. The polypropylene composite film has excellent heat-sealing properties, such as low-temperature heat-sealing properties and heat-sealing strength, and hot tack properties. The polypropylene composite film is almost free from surface tackiness and shows good slip properties and high blocking resistance at high temperatures, so that it is suitable for high-speed packaging. In addition, this composite film also has good transparency and scratch resistance. The polypropylene composite film of the invention having the above-mentioned excellent properties can be favorably used for packaging of foods, fill packaging and fiber packaging.
摘要翻译: 本发明的聚丙烯复合膜包含(A)结晶聚丙烯层和(B)层压在结晶聚丙烯层(A)的至少一个表面上的丙烯-1-丁烯无规共聚物层。 丙烯/ 1-丁烯无规共聚物(B)具有以下性质:(1)共聚物包含50〜95摩尔%的来自丙烯的构成单元和50〜5摩尔%的来自1-丁烯的结构单元, (2)特性粘度为0.1〜5dl / g,(3)分子量分布(Mw / Mn)为3以上,(4)参数B为1.0〜1.5。 该复合膜的结晶聚丙烯层(A)可以是未拉伸的,单轴拉伸的或双轴取向的。 聚丙烯复合膜具有优异的热封性能,如低温热封性和热封强度,以及热粘性。 聚丙烯复合膜几乎没有表面粘性,在高温下表现出良好的滑动性和高抗粘连性,因此适用于高速包装。 此外,该复合膜也具有良好的透明性和耐擦伤性。 具有上述优异性质的本发明的聚丙烯复合膜可以有利地用于包装食品,填充包装和纤维包装。
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公开(公告)号:US5998039A
公开(公告)日:1999-12-07
申请号:US890360
申请日:1997-07-09
申请人: Tatsuya Tanizaki , Mikio Hashimoto , Masahiro Sugi , Toshiyuki Tsutsui , Yasuo Tanaka , Mamoru Kagami
发明人: Tatsuya Tanizaki , Mikio Hashimoto , Masahiro Sugi , Toshiyuki Tsutsui , Yasuo Tanaka , Mamoru Kagami
IPC分类号: C08F210/06 , C08L23/10 , C08L23/12 , C08L23/14 , B32B27/32
CPC分类号: C08L23/12 , C08L23/10 , C08L23/14 , C08L23/142 , C08F210/06 , C08L2205/02 , Y10S428/91 , Y10T428/1328 , Y10T428/31909 , Y10T428/31913
摘要: Disclosed is a polypropylene composition comprising (A) polypropylene and (B) a specific propylene-1-butene random copolymer in a specific amount ratio. The propylene-1-butene random copolymer (B) is characterized in that: (1) the copolymer contains 50 to 95% by mol of constituent units from propylene and 50 to 5% by mol of constituent units from 1-butene, (2) the intrinsic viscosity, as measured in decahydronaphthalene at 135.degree. C., is in the range of 0.1 to 12 dl/g, (3) the molecular weight distribution (Mw/Mn), as determined measured by GPC, is not more than 3, and (4) the parameter B value indicating randomness of the copolymerized monomer sequence distribution is in the range of 1.0 to 1.5. Also disclosed is a polypropylene composite film comprising (I) a crystalline polypropylene layer and (II) a layer formed from the polypropylene composition, which is laminated on at least one surface of the crystalline polypropylene layer (I). The polypropylene composition is excellent in heat resistance and low-temperature heat-sealing properties as well as in flexibility and impact resistance. The polypropylene composite film is excellent in not only heat-sealing properties, particularly low-temperature heat-sealing properties, but also transparency, scratch resistance and blocking resistance.
摘要翻译: 公开了包含(A)聚丙烯和(B)特定量比的特定丙烯-1-丁烯无规共聚物的聚丙烯组合物。 丙烯-1-丁烯无规共聚物(B)的特征在于:(1)共聚物含有50〜95摩尔%的丙烯构成单元和50〜5摩尔%的来自1-丁烯的构成单元,(2 ),在135℃下在十氢化萘中测得的特性粘度在0.1〜12dl / g的范围内,(3)通过GPC测定的分子量分布(Mw / Mn)不大于 3,(4)表示共聚单体序列分布的随机性的参数B值在1.0〜1.5的范围内。 还公开了一种聚丙烯复合膜,其包含(I)结晶聚丙烯层和(II)由聚丙烯组合物形成的层,其层压在结晶聚丙烯层(I)的至少一个表面上。 聚丙烯组合物的耐热性和低温热封性以及柔软性和耐冲击性优异。 聚丙烯复合膜不仅具有优异的热封性,特别是低温热封性,而且透明性,耐擦伤性和耐粘连性优异。
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公开(公告)号:US5648423A
公开(公告)日:1997-07-15
申请号:US411597
申请日:1995-04-05
申请人: Mamoru Kagami , Mutsuhiro Tanaka , Masahiro Sugi
发明人: Mamoru Kagami , Mutsuhiro Tanaka , Masahiro Sugi
摘要: The polyamide resin composition of the present invention comprises 100 parts by weight of a polyamide resin and 5 to 200 parts by weight of a graft-modified ethylene/1-butene random copolymer having a graft quantity of an unsaturated carboxylic acid or its derivative of 0.01 to 10% by weight. The graft-modified ethylene/1-butene random copolymer is a graft-modified product of an ethylene/1-butene random copolymer having a 1-butene content of 15 to 25% by mol, an intrinsic viscosity [.eta.] of 0.5 to 3.5 dl/g, a glass transition temperature (Tg) of not higher than -60.degree. C., a crystallinity of less than 10%, and a parameter (B value) indicating randomness of a copolymerized monomer chain distribution, as measured by a .sup.13 C-NMR method, of 1.0 to 1.4. The polyamide resin composition shows high melt flowability, namely, good moldability, and it can provide a molded article excellent in flexibility, low-temperature impact resistance, resistance to water absorption and resistance to saline solutions.
摘要翻译: PCT No.PCT / JP94 / 01296 Sec。 371日期1995年04月5日 102(e)1995年4月5日PCT PCT 1994年8月4日PCT公布。 公开号WO95 / 04781 日期1995年2月16日本发明的聚酰胺树脂组合物包含100重量份聚酰胺树脂和5〜200重量份接枝量为不饱和羧酸的接枝改性乙烯/ 1-丁烯无规共聚物 或其衍生物为0.01〜10重量%。 接枝改性的乙烯/ 1-丁烯无规共聚物是1-丁烯含量为15〜25摩尔%,特性粘度η为0.5〜3.5的乙烯/ 1-丁烯无规共聚物的接枝改性物 dl / g,玻璃化转变温度(Tg)不高于-60℃,结晶度小于10%,以及表示共聚单体链分布的随机性的参数(B值),通过13℃ -NMR法,为1.0〜1.4。 聚酰胺树脂组合物显示出高的熔融流动性,即良好的成型性,并且可以提供柔软性,耐低温冲击性,耐吸水性和耐盐溶液性优异的模塑制品。
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公开(公告)号:US06242535B1
公开(公告)日:2001-06-05
申请号:US09455795
申请日:1999-12-07
申请人: Mamoru Kagami , Seiki Maeda , Yasuo Tanaka
发明人: Mamoru Kagami , Seiki Maeda , Yasuo Tanaka
IPC分类号: C08L2300
CPC分类号: C08L23/04 , C08L23/10 , C08L53/00 , C08L2314/06 , C08L2666/04 , C08L2666/02
摘要: A hollow vessel for heat sterilization, which is superior in the transparency and in the impact resistance with scarce odor, made of a polyolefin resin having characteristic properties comprising an underwater light transmittance of 70-99% resulting from determination of light transmission at a wave length of 450 nm for a resin specimen of a thickness of 0.5 mm which has been subjected to a heat sterilization treatment with steam at a temperature of 121° C. for 20 minutes; a tensile elastic modulus of 200-700 MPa, determined according to ASTM D 638 for a resin specimen of a thickness of 0.5 mm which has been subjected to a heat sterilization treatment with steam; a haze value difference &Dgr; Haze of 1-20%, determined according to ASTM D 1330 for a resin specimen of a thickness of 0.5 mm respectively before and after a heat sterilization treatment thereof with steam; and a high-speed impact strength of 1.5-10 J, determined on an impact test at 0° C. as the total rupture energy required for rupturing a resin specimen of 0.5 mm×9 cm×9 cm which has been subjected to a heat sterilization treatment with steam, wherein the impact test is carried out by settling the specimen on a jig having a hole of 1 inch diameter for receiving an impinging weight having an impact top of a diameter of 0.5 inch and causing the weight to impinge thereonto at an impingement speed of 3 m/sec.
摘要翻译: 一种用于加热灭菌的中空容器,其具有优异的透明性和耐候性,具有极好的气味,由聚烯烃树脂制成,该聚烯烃树脂具有以下特征:聚苯乙烯树脂,其具有70至99%的水中透光率, 对于已经在121℃的温度下用蒸汽进行加热灭菌处理20分钟的厚度为0.5mm的树脂样品的450nm;拉伸弹性模量为200-700MPa,根据ASTM D 638,对于已经用蒸汽进行热灭菌处理的厚度为0.5mm的树脂试样;雾度值差ΔTA1为1-20%,根据ASTM D 1330测定厚度为0.5的树脂试样 mm,分别在用蒸汽进行热灭菌处理之前和之后; 并且在0℃下的冲击试验确定为1.5-10J的高速冲击强度,作为已经用蒸汽进行热灭菌处理的0.5mm×9cm×9cm的树脂试样破裂所需的总破裂能量, 其中冲击试验是通过将样品沉积在具有1英寸直径的孔的夹具上进行的,用于接收具有0.5英寸直径的冲击顶部的冲击重量,并使其重量以3m的冲击速度冲击 /秒。
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公开(公告)号:US07388051B2
公开(公告)日:2008-06-17
申请号:US10543360
申请日:2004-01-16
申请人: Ryoji Mori , Takashi Nakagawa , Mamoru Kagami , Akira Todo
发明人: Ryoji Mori , Takashi Nakagawa , Mamoru Kagami , Akira Todo
CPC分类号: A61L29/041 , C08L23/10 , C08L23/142 , C08L2205/02 , C08L2207/12 , Y10T428/1397 , C08L2666/06
摘要: The invention provides a propylene polymer composition well balanced and excellent in transparency, flexibility, heat resistance, scratch resistance and rubber elasticity, and a medical tube made from the propylene polymer composition. The propylene polymer composition satisfies all the following properties (A), (B), (C) and (D): (A) the composition shows a loss tangent (tan δ) peak at a temperature in the range of −20 to 25° C. according to dynamic viscoelasticity measurement (10 rad/s) in a torsion mode, and the peak is 0.5 or above; (B) the storage elastic modulus G′ at 20° C. from the dynamic viscoelasticity measurement is in the range of 1.0×107 to 4.9×108 dyn/cm2; (C) the penetration temperature (° C.) determined in accordance with JIS K 7196 is in the range of 60 to 160° C.; and (D) the composition has a permanent set of not more than 30% as determined after the composition fixed between chucks 30 mm apart is 100% strained at a stress rate of 30 mm/min, maintained for 10 minutes and released for 10 minutes. The medical tube is made from the propylene polymer composition.
摘要翻译: 本发明提供了一种丙烯聚合物组合物,其透明性,柔韧性,耐热性,耐刮擦性和橡胶弹性优良的平衡性以及由丙烯聚合物组合物制成的医用管。 丙烯聚合物组合物满足以下所有性质(A),(B),(C)和(D):(A)组合物在-20至25℃的温度范围内显示损耗角正切(tanδ)峰 根据动态粘弹性测量(10rad / s)在扭转模式下,峰值为0.5或更高; (B)来自动态粘弹性测量的20℃下的储能弹性模量G'在1.0×10 -7至4.9×10 8 dyn / cm 2的范围内 > 2 SUP>; (C)根据JIS K 7196测定的穿透温度(℃)为60〜160℃的范围。 和(D)组合物具有不超过30%的永久变形,如在固定在30mm间距的卡盘之间的组合物以30mm / min的应力速率100%应变之后确定的,保持10分钟并释放10分钟 。 医用管由丙烯聚合物组合物制成。
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公开(公告)号:US20060175004A1
公开(公告)日:2006-08-10
申请号:US10494637
申请日:2002-11-07
申请人: Yasuo Kurosaki , Tomoya Matayoshi , Kimitoshi Satoh , Mamoru Kagami , Takayuki Kajihara , Hiroshi Tanaka
发明人: Yasuo Kurosaki , Tomoya Matayoshi , Kimitoshi Satoh , Mamoru Kagami , Takayuki Kajihara , Hiroshi Tanaka
IPC分类号: B32B37/00
CPC分类号: B29C66/81267 , B29C65/1412 , B29C65/1416 , B29C65/1435 , B29C65/1612 , B29C65/1616 , B29C65/1619 , B29C65/1635 , B29C65/1654 , B29C65/1687 , B29C65/1696 , B29C65/7841 , B29C65/8253 , B29C66/1122 , B29C66/244 , B29C66/3474 , B29C66/43 , B29C66/522 , B29C66/65 , B29C66/71 , B29C66/723 , B29C66/73115 , B29C66/73117 , B29C66/7313 , B29C66/73161 , B29C66/7332 , B29C66/73321 , B29C66/73521 , B29C66/73753 , B29C66/73772 , B29C66/73776 , B29C66/73921 , B29C66/8122 , B29C66/81261 , B29C66/81268 , B29C66/834 , B29C66/83411 , B29C66/91411 , B29C66/91631 , B29C66/919 , B29C66/9192 , B29C66/91921 , B29C66/929 , B29C66/93431 , B29C66/939 , B29C66/944 , B29C66/949 , B29C66/9592 , B29C2035/0822 , B29K2995/0027 , B29K2995/0072 , B29K2995/0073 , B29K2909/02 , B29K2081/06 , B29K2077/00 , B29K2075/00 , B29K2071/00 , B29K2069/00 , B29K2067/006 , B29K2067/003 , B29K2067/00 , B29K2055/02 , B29K2033/20 , B29K2033/12 , B29K2033/08 , B29K2027/08 , B29K2027/06 , B29K2025/06 , B29K2023/38 , B29K2023/18 , B29K2023/12 , B29K2023/083 , B29K2023/06 , B29K2021/003 , B29K2009/00
摘要: Weld bead of excellent surface features with high welding strength can be obtained without development of significant shrinkage and thermal damages.
摘要翻译: 可以获得具有高焊接强度的优异表面特征的焊道,而不会发生显着的收缩和热损伤。
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公开(公告)号:US20060057321A1
公开(公告)日:2006-03-16
申请号:US10543360
申请日:2004-01-16
申请人: Ryoji Mori , Takashi Nakagawa , Mamoru Kagami , Akira Todo
发明人: Ryoji Mori , Takashi Nakagawa , Mamoru Kagami , Akira Todo
CPC分类号: A61L29/041 , C08L23/10 , C08L23/142 , C08L2205/02 , C08L2207/12 , Y10T428/1397 , C08L2666/06
摘要: The invention provides a propylene polymer composition well balanced and excellent in transparency, flexibility, heat resistance, scratch resistance and rubber elasticity, and a medical tube made from the propylene polymer composition. The propylene polymer composition satisfies all the following properties (A), (B), (C) and (D): (A) the composition shows a loss tangent (tan δ) peak at a temperature in the range of −20 to 25° C. according to dynamic viscoelasticity measurement (10 rad/s) in a torsion mode, and the peak is 0.5 or above; (B) the storage elastic modulus G′ at 20° C. from the dynamic viscoelasticity measurement is in the range of 1.0×107 to 4.9×108 dyn/cm2; (C) the penetration temperature (° C.) determined in accordance with JIS K 7196 is in the range of 60 to 160° C.; and (D) the composition has a permanent set of not more than 30% as determined after the composition fixed between chucks 30 mm apart is 100% strained at a stress rate of 30 mm/min, maintained for 10 minutes and released for 10 minutes. The medical tube is made from the propylene polymer composition.
摘要翻译: 本发明提供了一种丙烯聚合物组合物,其透明性,柔韧性,耐热性,耐刮擦性和橡胶弹性优良的平衡性以及由丙烯聚合物组合物制成的医用管。 丙烯聚合物组合物满足以下所有性质(A),(B),(C)和(D):(A)组合物在-20至25℃的温度范围内显示损耗角正切(tanδ)峰 根据动态粘弹性测量(10rad / s)在扭转模式下,峰值为0.5或更高; (B)来自动态粘弹性测量的20℃下的储能弹性模量G'在1.0×10 -7至4.9×10 8 dyn / cm 2的范围内 > 2 SUP>; (C)根据JIS K 7196测定的穿透温度(℃)为60〜160℃的范围。 和(D)组合物具有不超过30%的永久变形,如在固定在30mm间距的卡盘之间的组合物以30mm / min的应力速率100%应变之后确定的,保持10分钟并释放10分钟 。 医用管由丙烯聚合物组合物制成。
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