New barrier resin for multi-layer PET bottles. (Keeping Up With: Blow Molding).Early tests show that a novel polyester provides 10-fold greater oxygen barrier to multi-layer PET bottles than does MXD MXD Mixed MXD Mixed Mail (US Postal Service) MXD Mixed Cell Count (blood) MXD Multiple XML Documents (file) MXD Maximum Diadic 6 amorphous nylon. This developmental polyglycolic acid (PGA (1) (Professional Graphics Adapter) An early IBM PC display standard for 3D processing with 640x480x256 resolution. It was not widely used. (2) (Programmable Gate Array) See gate array and FPGA. ) resin comes from Kureha Chemical Industry Co. Ltd. in Japan. Unlike EVOH EVOH Ethylene Vinyl Alcohol Polymer (chemical industry) , PGA reportedly does not suffer a dramatic fall-off in barrier performance under high humidity. Compared with other barrier resins, PGA's melting point is closer to that of PET. Kureha officials say this simplifies coinjection of bottle preforms, resulting in faster cycles and improved quality. The company has test-run PGA successfully on both one-stage and two-stage (reheat Re`heat´ v. t. 1. To heat again. 2. To revive; to cheer; to cherish. Verb 1. reheat - heat again; "Please reheat the food from last night" ) stretch-blow equipment. Kureha's U.S. office is Kreha Corp. of America, N.Y.C. Tel: (212) 867-7040. Kureha will discuss PGA at the Nova-Pack Europe conference, on Sept. 26-27 in Neuss, Germany. The conference is sponsored by Schotland Business Research, Skillman, N.J. Tel: (609) 466-9191. |
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