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    • 2. 发明申请
    • HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF MAKING THE SAME, INJECTION MOLDED ARTICLES MADE THEREFROM, AND METHOD OF MAKING SUCH ARTICLES
    • 高密度聚乙烯组合物,其制备方法,注射成型制品及制造这些制品的方法
    • WO2008136849A1
    • 2008-11-13
    • PCT/US2007/082502
    • 2007-10-25
    • DOW GLOBAL TECHNOLOGIES INC.MICHIE, WilliamWHITED, StephanieWIKER, NathanELLEY-BRISTOW, Dale
    • MICHIE, WilliamWHITED, StephanieWIKER, NathanELLEY-BRISTOW, Dale
    • C08L23/08C08F255/02C08F2/34C08F297/00
    • C08L23/08B29C43/003B29C43/02B29C43/52B29C45/0001B29C49/0005B29K2023/065B29K2105/0094B29K2995/0063B29L2031/565B65D41/24C08F210/16C08L23/06C08L2205/02C08L2207/062H01B3/441C08F2/001C08F2/34C08L2666/06C08F210/14C08F2500/08C08F2500/12C08F2500/01C08F2500/13C08F2500/18C08F2500/07C08F2500/02
    • The instant invention is a high-density polyethylene composition, method of producing the same, injection molded articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm3, and a melt index (I21.6) in the range of 1 to 15 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm3, and a melt index (I2) in the range of 30 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3. The method of producing a high-density polyethylene composition includes the following steps: (1) introducing ethylene, and one or more alpha-olefin comonomers into a first reactor; (2) (co)polymerizing the ethylene in the presence of one or more alpha-olefin comonomers in the first reactor thereby producing a first component, wherein the first component being a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm3, and a melt index (I21.6) in the range of 1 to 15 g/10 minutes; (3) introducing the first component and additional ethylene into a second reactor; (4) polymerizing the additional ethylene in the second reactor thereby producing a second component, wherein the second component being a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm3, and a melt index (I2) in the range of 30 to 1500 g/10 minutes; and (5) thereby producing the high-density polyethylene composition, wherein the high-density polyethylene composition having a melt index (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3. The injection molded articles according to instant invention comprise the above-described inventive high-density polyethylene composition, and such articles are made via injection molding.
    • 本发明是高密度聚乙烯组合物,其制造方法,由其制成的注塑制品及其制造方法。 本发明的高密度聚乙烯组合物包括第一组分和第二组分。 第一组分是密度在0.920至0.946g / cm 3范围内且熔体指数(I 21.6)在1至15g / 10分钟范围内的高分子量乙烯α-烯烃共聚物。 第二组分是密度在0.965至0.980g / cm 3范围内的熔融指数(I 2)在30至1500g / 10分钟范围内的低分子量乙烯聚合物。 高密度聚乙烯组合物的熔体指数(I 2)至少为1,密度在0.950至0.960g / cm3的范围内。 制备高密度聚乙烯组合物的方法包括以下步骤:(1)将乙烯和一种或多种α-烯烃共聚单体引入第一反应器; (2)(共)在第一反应器中在一种或多种α-烯烃共聚单体存在下聚合乙烯,从而产生第一组分,其中第一组分是密度在该范围内的高分子量乙烯α-烯烃共聚物 为0.920〜0.946g / cm3,熔体指数(I21.6)为1〜15g / 10分钟; (3)将第一组分和另外的乙烯引入第二反应器中; (4)在第二反应器中聚合另外的乙烯,从而产生第二组分,其中第二组分是密度在0.965至0.980g / cm 3范围内的低分子量乙烯聚合物和熔体指数(I 2)在 范围为30〜1500g / 10分钟; 和(5),由此制备高密度聚乙烯组合物,其中熔体指数(I 2)至少为1,密度在0.950至0.960g / cm3范围内的高密度聚乙烯组合物。 根据本发明的注塑制品包含上述本发明的高密度聚乙烯组合物,并且这些制品通过注射成型制成。
    • 3. 发明申请
    • CHLORINATED POLYETHYLENES, METHOD OF PRODUCING THE SAME, AND ARTICLES MADE THEREFROM
    • 氯化聚乙烯及其生产方法及其制备方法
    • WO2009140169A1
    • 2009-11-19
    • PCT/US2009/043334
    • 2009-05-08
    • DOW GLOBAL TECHNOLOGIES INC.JOHNSON, GregoryMICHIE, WilliamWHITED, StephanieLAAKSO, Jr.
    • JOHNSON, GregoryMICHIE, WilliamWHITED, StephanieLAAKSO, Jr.
    • C08F8/22C08F8/20
    • C08F8/22C08K5/0008C08L23/286C08F10/02
    • The instant invention relates to chlorinated poly ethylenes, method of producing the same, and articles made therefrom. The chlorinated polyethylene composition comprising the reaction product of (a) 55 to 90 percent by weight of a gas-phase high-density polyethylene, based on the total weight of the chlorinated high-density polyethylene, wherein the high-density polyethylene has a density in the range of 0.940 to 0.970 g/cm 3 , a melt index I 2 in the range of less than 15 g/10 minutes, a melt flow rate I 10 in the range of less than 200 g/10 minutes; and an average particle size in the range of less than 800 microns; (b) 10 to 45 percent by weight of chlorine, based on the total weight of the chlorinated high-density polyethylene; and (c) optionally less than 15 percent by weight of a surfactant, based on the total weight of the chlorinated polyethylene. The method of producing chlorinated high- density poly ethylenes according to the instant invention comprises the steps of (1) selecting a gas-phase high-density polyethylene, wherein the high-density polyethylene has a density in the range of 0.940 to 0.970 g/cm 3 , a melt index I 2 in the range of less than 15 g/10 minutes, a melt flow rate I10 in the range of less than 200 g/10 minutes, and an average particle size in the range of less than 800 microns; (2) selecting chlorine; (3) optionally selecting a surfactant; (4) forming an aqueous slurry of the high-density polyethylene optionally in the presence of the surfactant; (5) increasing the temperature of the slurry to a temperature of less than peak melting point temperature of the high-density polyethylene while agitating the high-density polyethylene; (6) admixing the chlorine with the slurry while maintaining the temperature of the mixture of chlorine and slurry at a temperature of less than peak melting point temperature of the high-density polyethylene while agitating the mixture; (7) optionally adding an anti-agglomeration agent; (8) thereby chlorinating the high-density polyethylene. The articles according to the instant invention comprise a chlorinated polyethylene composition comprising the reaction product of (a) 55 to 90 percent by weight of a gas-phase high-density polyethylene, based on the total weight of the chlorinated high-density polyethylene, wherein the high-density polyethylene has a density in the range of 0.940 to 0.970 g/cm 3 , a melt index I 2 in the range of less than 15 g/10 minutes, a melt flow rate I 10 in the range of less than 200 g/10 minutes, and an average particle size in the range of less than 800 microns; (b) 10 to 45 percent by weight of chlorine, based on the total weight of the chlorinated high-density polyethylene; and (c) optionally less than 15 percent by weight of a surfactant, based on the total weight of the chlorinated polyethylene.
    • 本发明涉及氯化聚乙烯,其制备方法和由其制成的制品。 氯化聚乙烯组合物包含基于氯化高密度聚乙烯的总重量的(a)55至90重量%的气相高密度聚乙烯的反应产物,其中高密度聚乙烯具有密度 在0.940至0.970g / cm 3的范围内,熔体指数I2在小于15g / 10分钟的范围内,熔体流动速率I10在小于200g / 10分钟的范围内; 平均粒度在小于800微米的范围内; (b)10至45重量%的氯,基于氯化高密度聚乙烯的总重量; 和(c)任选地小于15重量%的表面活性剂,基于氯化聚乙烯的总重量。 根据本发明的生产氯化高密度聚乙烯的方法包括以下步骤:(1)选择气相高密度聚乙烯,其中高密度聚乙烯的密度在0.940-0.970g / cm 3,熔体指数I2在小于15g / 10分钟的范围内,熔体流动速率I10在小于200g / 10分钟的范围内,平均粒度在小于800微米的范围内; (2)选择氯; (3)任选地选择表面活性剂; (4)任选地在表面活性剂存在下形成高密度聚乙烯的水性浆料; (5)在搅拌高密度聚乙烯的同时,将浆料的温度升高至低于高密度聚乙烯的峰值熔点温度的温度; (6)在搅拌混合物的同时将氯和浆料混合在一起保持氯和浆料的混合物的温度在低于高密度聚乙烯的峰值熔点温度的温度下; (7)任选地加入抗附聚剂; (8),从而氯化高密度聚乙烯。 根据本发明的制品包含氯化聚乙烯组合物,其包含基于氯化高密度聚乙烯的总重量的(a)55至90重量%的气相高密度聚乙烯的反应产物,其中 高密度聚乙烯的密度在0.940〜0.970g / cm3的范围内,熔体指数I2在小于15g / 10分钟的范围内,熔体流动速率I10在小于200g / 10的范围内 分钟,平均粒径在小于800微米的范围内; (b)10至45重量%的氯,基于氯化高密度聚乙烯的总重量; 和(c)任选地小于15重量%的表面活性剂,基于氯化聚乙烯的总重量。
    • 4. 发明申请
    • POLYETHYLENE COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED THEREFROM
    • 聚乙烯组合物,其制备方法和制备的制品
    • WO2008051824A2
    • 2008-05-02
    • PCT/US2007/081893
    • 2007-10-19
    • DOW GLOBAL TECHNOLOGIES INC.MICHIE, WilliamCHANG, DaneHAZLITT, LonnieWHITED, StephanieKINNAN, MichaelNEUBAUER, AnthonyHO, Thoi
    • MICHIE, WilliamCHANG, DaneHAZLITT, LonnieWHITED, StephanieKINNAN, MichaelNEUBAUER, AnthonyHO, Thoi
    • C08L23/00
    • C08L23/26C08L23/0815C08L2205/02C08L2666/06
    • The invention is related to compositions suitable for the fabrication of pipes, and other articles, with excellent performance properties. The invention provides a composition, comprising a blend, wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer, and the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, and the low molecular weight ethylene-based interpolymer is heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.940 g/cc to 0.955 g/cc, and a melt index (I2) from 6 g/10 min to 50 g/10 min. The blend has a single peak in an ATREF profile eluting above 30°C, and has a coefficient of viscosity average molecular weight (CM?) less than -0.0032 in the log(calculated Mv) versus elution temperature, said CMv calculated in the range of elution temperatures from 70°C to 90°C. The Mv is the viscosity average molecular weight.
    • 本发明涉及适于制造具有优异性能的管道和其它制品的组合物。 本发明提供一种包含共混物的组合物,其中所述共混物包含高分子量乙烯基互聚物和低分子量乙烯基互聚物,并且高分子量乙烯基互聚物是非均匀支化的线性或均匀分支的 线性乙烯类互聚物,密度为0.922g / cc〜0.929g / cc,高负荷熔融指数(I21)为0.2g / 10min〜1.0g / 10min,低分子量乙烯 - 基于异构支化的线型或均匀支化的线性乙烯基互聚物,其密度为0.940g / cc至0.955g / cc,熔体指数(I 2)为6g / 10min至50g / 10min 。 共混物在高于30℃洗脱的ATREF谱中具有单峰,并且在对数(计算出的Mv)相对于洗脱温度具有小于-0.0032的粘均分子量(CMΩ)系数,所述CMv计算在范围内 的洗脱温度为70℃至90℃。 Mv是粘均分子量。
    • 6. 发明申请
    • POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, ARTICLES MADE THEREFROM, AND METHOD MAKING THE SAME
    • 聚乙烯组合物,其制造方法,制造方法及制造方法
    • WO2009097222A1
    • 2009-08-06
    • PCT/US2009/031808
    • 2009-01-23
    • DOW GLOBAL TECHNOLOGIES INC.MICHIE, WilliamDAVIS, MarkWIKER, NathanWILSON, DebraSCHINDLER, PeterGARNETT, John
    • MICHIE, WilliamDAVIS, MarkWIKER, NathanWILSON, DebraSCHINDLER, PeterGARNETT, John
    • B29C45/00C08F10/02C08L23/08
    • C08F210/16B29K2023/06C08L2314/06C08F210/14C08F2500/09C08F2500/03C08F2500/17C08F2500/20C08F2500/11C08F2500/12
    • The instant invention is a polyethylene composition, method of producing the same, articles made therefrom, and method of making the same. The polyethylene composition according to the instant invention comprises (1) less than or equal to 100 percent by weight of the units derived from ethylene; and (2) less than 15 percent by weight of units derived from one or more α-olefin comonomers. The polyethylene composition according the instant invention has a density in the range of 0.907 to 0.975 g/cm 3 , a molecular weight distribution (M w /M n ) in the range of 1.70 to 3.62, a melt index (I 2 ) in the range of 2 to 1000 g/10 minutes, a molecular weight distribution (M z /M w ) in the range of less than 2.5, and a vinyl unsaturation of less than 0.06 vinyls per one thousand carbon atoms present in the backbone of the composition. The process for producing a polyethylene composition according to the instant invention comprises the steps of: (1) (co)polymerizing ethylene and at least one or more α-olefin comonomers in the presence of a hafnium based metallocene catalyst via a gas phase (co)polymerization process in a single stage reactor; and (2) thereby producing the inventive polyethylene composition, wherein the polyethylene composition has a density in the range of 0.907 to 0.975 g/cm 3 , a molecular weight distribution (M w /M n ) in the range of 1.70 to 3.62, a melt index (I 2 ) in the range of 2 to 1000 g/10 minutes, a molecular weight distribution (M z /M w ) in the range of less than 2.5, and a vinyl unsaturation of less than 0.06 vinyls per one thousand carbon atoms present in the backbone of said composition. The injection molded articles according to the instant invention comprise a polyethylene composition comprising (1) less than or equal to 100 percent by weight of the units derived from ethylene; and (2) less than 15 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.907 to 0.975 g/cm 3 , a molecular weight distribution (M w /M n ) in the range of 1.70 to 3.62, a melt index (I 2 ) in the range of 2 to 1000 g/10 minutes, a molecular weight distribution (M z /M w ) in the range of less than 2.5, vinyl unsaturation of less than 0.06 vinyls per one thousand carbon atoms present in the backbone of said composition. The process for making an injection molded article according to the instant invention comprises the steps of: (a) selecting a polyethylene composition comprising (1) less than or equal to 100 percent by weight of the units derived from ethylene; and (2) less than 15 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.907 to 0.975 g/cm 3 , a molecular weight distribution (M w /M n ) in the range of 1.70 to 3.62, a melt index (I 2 ) in the range of 2 to 1000 g/10 minutes, a molecular weight distribution (M z /M w ) in the range of less than 2.5, vinyl unsaturation of less than 0.06 vinyls per one thousand carbon atoms present in the backbone of said composition; (b) injection molding said polyethylene composition; and (c) thereby forming the injection molded article.
    • 本发明是聚乙烯组合物,其制造方法,由其制成的制品及其制造方法。 根据本发明的聚乙烯组合物包含(1)小于或等于100重量%的衍生自乙烯的单元; 和(2)少于15重量%的衍生自一种或多种α-烯烃共聚单体的单元。 本发明的聚乙烯组合物的密度范围为0.907-0.975g / cm3,分子量分布(Mw / Mn)在1.70〜3.62的范围内,熔体指数(I2)在2〜 1000g / 10分钟,小于2.5的分子量分布(Mz / Mw)和存在于组合物主链中的每1000个碳原子的小于0.06个乙烯基的乙烯基不饱和度。 根据本发明的制备聚乙烯组合物的方法包括以下步骤:(1)在铪基茂金属催化剂存在下,通过气相(共 - (co))共聚合乙烯和至少一种或多种α-烯烃共聚单体 )单级反应器中的聚合过程; (2)由此制备本发明的聚乙烯组合物,其中聚乙烯组合物的密度范围为0.907-0.975g / cm3,分子量分布(Mw / Mn)在1.70-3.62的范围内,熔体指数( I2)在2至1000g / 10分钟的范围内,分子量分布(Mz / Mw)在小于2.5的范围内,乙烯基不饱和度低于0.06个乙烯基,每1000个碳原子存在于骨架中 所说的组合。 根据本发明的注塑制品包括聚乙烯组合物,其包含(1)小于或等于100重量%的衍生自乙烯的单元; 和(2)少于15重量%的衍生自一种或多种α-烯烃共聚单体的单元; 其中所述聚乙烯组合物的密度范围为0.907-0.975g / cm3,分子量分布(Mw / Mn)在1.70-3.62的范围内,熔体指数(I2)在2〜1000g / 10分钟,存在于所述组合物的骨架中的每千个碳原子的分子量分布(Mz / Mw)小于2.5的乙烯基不饱和度小于0.06个乙烯基。 根据本发明的制备注射成型制品的方法包括以下步骤:(a)选择聚乙烯组合物,其包含(1)小于或等于100重量%的衍生自乙烯的单元; 和(2)少于15重量%的衍生自一种或多种α-烯烃共聚单体的单元; 其中所述聚乙烯组合物的密度范围为0.907-0.975g / cm3,分子量分布(Mw / Mn)在1.70-3.62的范围内,熔体指数(I2)在2〜1000g / 10分钟,存在于所述组合物的骨架中的每千个碳原子的分子量分布(Mz / Mw)小于2.5,乙烯基不饱和度小于0.06个乙烯基; (b)注塑所述聚乙烯组合物; 和(c),从而形成注塑制品。
    • 8. 发明申请
    • ETHYLENE-BASED POLYMERS AND COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED THEREFROM
    • 基于乙烯的聚合物和组合物,其制备方法及其制备的制品
    • WO2010091256A1
    • 2010-08-12
    • PCT/US2010/023325
    • 2010-02-05
    • DOW GLOBAL TECHNOLOGIES INC.MICHIE, WilliamHAYNE, SarahPATTERSON, SarahJORGENSEN, RobertWRIGHT, Dale
    • MICHIE, WilliamHAYNE, SarahPATTERSON, SarahJORGENSEN, RobertWRIGHT, Dale
    • C08F210/02
    • C08F210/16C08F4/69C08F210/14C08F2500/12C08F2500/18C08F2500/20C08F2500/04C08F2500/10
    • The invention provides an ethylene-based interpolymer comprising the following features: a) density from 0.910 to 0.930 g/cc; b) melt index (I2) from 0.1 to 0.5 g/10 min; and c) a high density fraction in an ATREF short chain branch distribution (SCBD) curve, eluting above 92°C, of greater than 10 percent to less than 28 percent of the total ATREF SCBD curve area. The invention also provides a composition comprising an ethylene-based interpolymer that comprises the following features: a) a density from 0.919 to 0.928 g/cc; b) a melt index (I2) from 0.1 to 0.8 g/10 min; and c) a high density fraction in an ATREF short chain branch distribution (SCBD) curve, eluting above 92°C, of greater than 10 percent to less than 28 percent of the total ATREF SCBD curve area. The invention also provides a hollow tube comprising at least one component formed from a composition comprising an ethylene-based interpolymer that comprises the following features: a) a density from 0.919 to 0.928 g/cc; b) a melt index (I2) from 0.1 to 0.8 g/10 min; and c) a high density fraction in an ATREF short chain branch distribution (SCBD) curve, eluting above 92°C, of greater than 10 percent to less than 28 percent of the total ATREF SCBD curve area; and wherein the tube has a hydrostatic design basis (HDB) of at least 1000-psi at 23°C per ASTM D-2837 regression method.
    • 本发明提供一种乙烯基互聚物,其包含以下特征:a)0.910至0.930g / cc的密度; b)熔融指数(I 2)为0.1至0.5g / 10min; 和c)在92℃以上洗脱的ATREF短链分支分布(SCBD)曲线中的高密度分数大于总ATREF SCBD曲线面积的10%至小于28%。 本发明还提供包含乙烯基互聚物的组合物,其包含以下特征:a)0.919至0.928g / cc的密度; b)0.1至0.8g / 10min的熔体指数(I 2); 和c)在92℃以上洗脱的ATREF短链分支分布(SCBD)曲线中的高密度分数大于总ATREF SCBD曲线面积的10%至小于28%。 本发明还提供一种中空管,其包含由包含乙烯基互聚物的组合物形成的至少一种组分,所述组合物包含以下特征:a)密度为0.919至0.928g / cc; b)0.1至0.8g / 10min的熔体指数(I 2); 和c)在92℃以上洗脱的ATREF短链分支分布(SCBD)曲线中的高密度分数大于总ATREF SCBD曲线区域的大于10%至小于28%; 并且其中所述管在23℃下根据ASTM D-2837回归方法具有至少1000-psi的流体静力学设计基准(HDB)。