摘要:
In a process for producing an elongated polyethylene component, such as a fiber or membrane, polyethylene powder having a molecular weight of at least 3 x 105 g/mol as determined by ASTM 4020 is dissolved in a solvent to produce an extrudable solution. The solution is then extruded through a die to form an elongated component and at least part of said solvent is removed from the elongated component. The polyethylene powder used in the process is produced by polymerizing ethylene in the presence of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand.
摘要翻译:在生产细长的聚乙烯组分如纤维或膜的方法中,通过ASTM 4020测定的具有至少3×10 5 g / mol的分子量的聚乙烯粉末溶于溶剂中以制备可挤出的溶液。 然后将溶液通过模具挤出以形成细长部件,并且从细长部件移除至少部分所述溶剂。 在该方法中使用的聚乙烯粉末通过在包含酚盐醚配体的第4族金属络合物的催化剂组合物存在下聚合乙烯来制备。
摘要:
A shaped article, suitable for in a prosthetic device, is formed of polyethylene having a molecular weight of at least 3 x 105 g/mol as determined by ASTM 4020, and has a yield strength greater than 20 as determined by DIN EN ISO 527. The polyethylene is produced by polymerizing ethylene in the presence of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand.
摘要翻译:适合于假体装置的成型制品由通过ASTM 4020确定的分子量至少为3×105g / mol的聚乙烯形成,并且通过DIN EN ISO 527确定的屈服强度大于20。 聚乙烯通过在包含酚盐醚配体的第4族金属络合物的催化剂组合物的存在下聚合乙烯来制备。
摘要:
In a process for producing high molecular weight polyethylene, ethylene is contacted with a slurry of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand under polymerization conditions comprising a temperature of about 20 °C to less than 90 °C and a pressure of about 4 bar to about 40 bar.
摘要:
Ultra-high molecular weight polyethylene has a molecular weight greater than 20 x 106 gm/mol as determined by ASTM 4020 or by size exclusion chromatography (SEC) and is produced by polymerizing ethylene with a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand.
摘要:
In a process for producing an elongated polyethylene component, such as a fiber or membrane, polyethylene powder having a molecular weight of at least 3 x 10 5 g/mol as determined by ASTM 4020 is dissolved in a solvent to produce an extrudable solution. The solution is then extruded through a die to form an elongated component and at least part of said solvent is removed from the elongated component. The polyethylene powder used in the process is produced by polymerizing ethylene in the presence of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand.
摘要:
A polyethylene powder is described having a molecular weight in the range of from 3,000,000 g/mol to less than 4,000,000 g/mol as determined by ASTM 4020 and a bulk density of 0.10 to 0.20 g/cm 3 . On sintering, the polyethylene powder produces a porous article having an elastic modulus of at least 90 MPa.
摘要:
In a process for producing high molecular weight polyethylene, ethylene is contacted with a slurry of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand under polymerization conditions comprising a temperature of about 20 °C to less than 90 °C and a pressure of about 4 bar to about 40 bar.
摘要:
A shaped article, suitable for in a prosthetic device, is formed of polyethylene having a molecular weight of at least 3 x 105 g/mol as determined by ASTM 4020, and has a yield strength greater than 20 as determined by DIN EN ISO 527. The polyethylene is produced by polymerizing ethylene in the presence of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand.
摘要翻译:适用于假体装置中的成型制品由聚乙烯形成,所述聚乙烯具有通过ASTM 4020测定的至少3×10 5 g / mol的分子量,并且具有大于20的屈服强度 如DIN EN ISO 527所测定的。聚乙烯是通过在包含酚盐醚配体的第4族金属配合物的催化剂组合物存在下使乙烯聚合而制得的。 p>
摘要:
A polyethylene powder is described having a molecular weight in the range of from 3,000,000 g/mol to less than 4,000,000 g/mol as determined by ASTM 4020 and a bulk density of 0.10 to 0.20 g/cm3. On sintering, the polyethylene powder produces a porous article having an elastic modulus of at least 90 MPa.
摘要翻译:描述了通过ASTM 4020测定的分子量为3,000,000g / mol至小于4,000,000g / mol且堆积密度为0.10至0.20g / cm 3的聚乙烯粉末。 在烧结时,聚乙烯粉末产生弹性模量为至少90MPa的多孔制品。
摘要:
In a process for producing polyethylene having a molecular weight of at least 3 x 10 5 g/mol as determined by ASTM 4020, ethylene is contacted under polymerization conditions with a slurry of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand, wherein the slurry further includes a scavenger comprising an alkyl magnesium compound.
摘要翻译:在通过ASTM 4020测定的分子量为至少3×10 5 g / mol的聚乙烯的方法中,乙烯在聚合条件下与包含酚盐醚配体的第4族金属配合物的催化剂组合物的浆料接触, 其中所述浆料还包含包含烷基镁化合物的清除剂。