公开(公告)号：EP2912095B1

公开(公告)日：2018-11-14

申请号：EP13783815.7

申请日：2013-10-22

申请人： Eastman Chemical Company

发明人： PEARCY, Barry, Glen ,  MILBURN, Jonathan, Terrill ,  WHITE, Alan, Wayne

IPC分类号： C08G63/199 ,  C08G63/83 ,  C08G63/84 ,  C08G63/85

CPC分类号： C08G63/199 ,  C08G63/83 ,  C08G63/84 ,  C08G63/85 ,  Y10T428/1352 ,  Y10T428/139 ,  Y10T428/31786

摘要： There is provided a copolyester containing residues of neopentyl glycol, 2,2,4,4-tetraalkyl 1,3-cyclobutanediol such as 2,2,4,4-tetramethyl 1,3-cyclobutanediol, tin atoms, aluminum atoms, an alkali or alkaline earth metal atoms such as lithium atoms, optionally phosphorus atoms, and having an It.V. of at least 0.55 dL/g, and Tg of at least 90° C. Such higher It.V. copolyesters can now be made having high Tg, good thermal stability, and higher insertion of 2,2,4,4-tetraalkyl 1,3-cyclobutanediol.

公开(公告)号：EP1414883B1

公开(公告)日：2006-09-13

申请号：EP02748213.2

申请日：2002-07-18

申请人： EASTMAN CHEMICAL COMPANY

发明人： TURNER, Sam, Richard ,  MILBURN, Jonathan, Terrill ,  SEYMOUR, Robert, William ,  SEO, Kab, Sik

IPC分类号： C08G63/199 ,  C08G63/183

CPC分类号： C08G63/183 ,  C08G63/199 ,  Y10T428/1352

摘要： Disclosed are amorphous copolyesters having an inherent viscosity (IV) of at least about 0.4 dL/g measured at a temperature of 25°C at 0.25 g/dl concentration in a solvent mixture of symmetric tetrachloroethane and phenol having a weight ratio of symmetric tetrachloroethane to phenol of 2:3 comprising (1) a diacid component consisting essentially of about 90 to 100 mole percent terephthalic acid residues and 0 to about 10 mole percent isophthalic acid residues; and (2) a diol component consisting essentially of about 10 to 70 mole percent 1,4-cyclohexanedimethanol residues and about 90 to 30 mole percent neopentyl glycol residues; wherein the amorphous copolyesters comprises 100 mole percent diacid component and 100 mole percent diol component. The amorphous copolyesters are useful in the manufacture or fabrication of medical devices which have improved resistance to degradation upon exposure to lipids, as a profile produced by profile extrusion and as an injection molded article. Also, a method of melt processing the amorphous copolyester is disclosed which allows for performing a minimal drying or no drying of the copolyester prior to melt processing.

公开(公告)号：EP2912095A1

公开(公告)日：2015-09-02

申请号：EP13783815.7

申请日：2013-10-22

申请人： Eastman Chemical Company

发明人： PEARCY, Barry, Glen ,  MILBURN, Jonathan, Terrill ,  WHITE, Alan, Wayne

IPC分类号： C08G63/199 ,  C08G63/83 ,  C08G63/84 ,  C08G63/85

CPC分类号： C08G63/199 ,  C08G63/83 ,  C08G63/84 ,  C08G63/85 ,  Y10T428/1352 ,  Y10T428/139 ,  Y10T428/31786

摘要： There is provided a copolyester containing residues of neopentyl glycol, 2,2,4,4-tetraalkyl 1,3-cyclobutanediol such as 2,2,4,4-tetramethyl 1,3-cyclobutanediol, tin atoms, aluminum atoms, an alkali or alkaline earth metal atoms such as lithium atoms, optionally phosphorus atoms, and having an It.V. of at least 0.55 dL/g, and Tg of at least 90° C. Such higher It.V. copolyesters can now be made having high Tg, good thermal stability, and higher insertion of 2,2,4,4-tetraalkyl 1,3-cyclobutanediol.

公开(公告)号：EP1414883A1

公开(公告)日：2004-05-06

申请号：EP02748213.2

申请日：2002-07-18

申请人： EASTMAN CHEMICAL COMPANY

发明人： TURNER, Sam, Richard ,  MILBURN, Jonathan, Terrill ,  SEYMOUR, Robert, William ,  SEO, Kab, Sik

IPC分类号： C08G63/199 ,  C08G63/183

CPC分类号： C08G63/183 ,  C08G63/199 ,  Y10T428/1352

摘要： Disclosed are amorphous copolyesters having an inherent viscosity (IV) of at least about 0.4 dL/g measured at a temperature of 25°C at 0.25 g/dl concentration in a solvent mixture of symmetric tetrachloroethane and phenol having a weight ratio of symmetric tetrachloroethane to phenol of 2:3 comprising (1) a diacid component consisting essentially of about 90 to 100 mole percent terephthalic acid residues and 0 to about 10 mole percent isophthalic acid residues; and (2) a diol component consisting essentially of about 10 to 70 mole percent 1,4-cyclohexanedimethanol residues and about 90 to 30 mole percent neopentyl glycol residues; wherein the amorphous copolyesters comprises 100 mole percent diacid component and 100 mole percent diol component. The amorphous copolyesters are useful in the manufacture or fabrication of medical devices which have improved resistance to degradation upon exposure to lipids, as a profile produced by profile extrusion and as an injection molded article. Also, a method of melt processing the amorphous copolyester is disclosed which allows for performing a minimal drying or no drying of the copolyester prior to melt processing.