公开(公告)号：EP0830195A2

公开(公告)日：1998-03-25

申请号：EP96913992.0

申请日：1996-05-10

申请人： AMOCO CORPORATION

发明人： VENKATESHWARAN, Lakshmi, N. ,  CHOKSHI, Dinesh ,  CHIANG, Weilong, L. ,  TSAI, Boh, Chang

IPC分类号： B65D81 ,  A23L1 ,  A23L3 ,  B01D53 ,  B01J20 ,  C08J3 ,  C08K3

CPC分类号： B01D53/02 ,  A23L3/3436 ,  B01D53/46 ,  B01D2253/202 ,  B01D2257/104 ,  C08J3/226 ,  C08J2323/06 ,  C08J2423/00 ,  C08K3/01

摘要： Oxygen-scavenging compositions comprising an oxidizable metal component, an electrolyte component and a solid, non-electrolytic, acidifying component and, optionally, a water-absorbant binder and/or a polymeric resin exhibit good oxygen-scavenging performance with improved oxidation efficiency relative to compositions containing oxidizable metal component and either an electrolyte or acidifying component but not both. The compositions can be used as an oxygen absorbent in packets or in combination with thermoplastic resins melt-fabricated into a wide variety of oxygen-scavenging packaging articles.

公开(公告)号：EP0636158B1

公开(公告)日：1999-03-31

申请号：EP94907907.3

申请日：1994-01-28

申请人： AMOCO CORPORATION

发明人： ROTTER, George, Edmund ,  MELQUIST, John, Leslie ,  CHIANG, Weilong ,  TSAI, Boh, Chang ,  KELLY, John, Joseph

IPC分类号： C08J9/00 ,  C08K5/15 ,  C08L67/02

CPC分类号： C08J9/0023 ,  C08J9/00 ,  C08J9/0066 ,  C08J2367/00 ,  C08J2367/02 ,  C08L67/02 ,  C08L2666/18

摘要： Disclosed is a process for obtaining polyester articles, including foamed articles, containing low levels of extractable branching agent. The process comprises: (1) forming a molten mixture comprising (i) a major amount of a first resin composition comprising polyester and from 0 up to about 1 wt. % of a compound capable of branching the polyester, and (ii) a minor amount of a second polyester resin composition comprising at least about 50 wt. % polyester resin and greater than about 2 wt. % of a compound capable of branching the polyester, wherein the relative amounts of (i) and (ii) are such that said molten mixture comprises from about 0.1 wt. % to about 1 wt. % of said branching compound; (2) adding a blowing agent to the molten mixture; and (3) extruding the resultant mixture to obtain a foam. The invention is also directed to the second composition used in the above process, and foamed polyester articles obtained from the process.

公开(公告)号：EP0636158A1

公开(公告)日：1995-02-01

申请号：EP94907907.0

申请日：1994-01-28

申请人： AMOCO CORPORATION

发明人： ROTTER, George, Edmund ,  MELQUIST, John, Leslie ,  CHIANG, Weilong ,  TSAI, Boh, Chang ,  KELLY, John, Joseph

IPC分类号： A47J27 ,  C08G63 ,  C08J9 ,  C08K5 ,  C08L67

CPC分类号： C08J9/0023 ,  C08J9/00 ,  C08J9/0066 ,  C08J2367/00 ,  C08J2367/02 ,  C08L67/02 ,  C08L2666/18

摘要： Disclosed is a process for obtaining polyester articles, including foamed articles, containing low levels of extractable branching agent. The process comprises: (1) forming a molten mixture comprising (i) a major amount of a first resin composition comprising polyester and from 0 up to about 1 wt. % of a compound capable of branching the polyester, and (ii) a minor amount of a second polyester resin composition comprising at least about 50 wt. % polyester resin and greater than about 2 wt. % of a compound capable of branching the polyester, wherein the relative amounts of (i) and (ii) are such that said molten mixture comprises from about 0.1 wt. % to about 1 wt. % of said branching compound; (2) adding a blowing agent to the molten mixture; and (3) extruding the resultant mixture to obtain a foam. The invention is also directed to the second composition used in the above process, and foamed polyester articles obtained from the process.