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Publication numberUST954005 I4
Publication typeGrant
Application numberUS 05/689,224
Publication dateJan 4, 1977
Filing dateMay 24, 1976
Priority dateMay 24, 1976
Publication number05689224, 689224, US T954005 I4, US T954005I4, US-I4-T954005, UST954005 I4, UST954005I4
InventorsBurns Davis, James R. Overton, Roger M. Schulken, Jr.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Process for preparing containers using branched polyesters
US T954005 I4
Abstract
disclosed is a process for preparing containers, such as bottles, using a branched polyester of terephthalic acid, a combination of ethylene glycol and 1,4-cyclohexanedimethanol and a small amount of a polyfunctional branching compound. A molten parison of such polyester is extruded and then expanded in a container mold to form the desired container.
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5149485 *Aug 2, 1991Sep 22, 1992Sabel Plastechs, Inc.Method and apparatus for extrusion blow molding polyethylene terephthalate articles
EP0409557A2 *Jul 17, 1990Jan 23, 1991Mitsubishi Rayon Co., LtdCrosslinked polyester resin
EP0457759A1 *Aug 23, 1989Nov 27, 1991Sabel Plastechs IncMethod and apparatus for extrusion blow molding polyethylene terephthalate articles.
WO1997043329A1 *May 8, 1997Nov 20, 1997Eastman Chem CoBiodegradable foamable co-polyester compositions
Classifications
U.S. Classification264/540
International ClassificationB29C49/00, C08G63/20, C08G63/199
Cooperative ClassificationC08G63/20, B29C49/0005, C08G63/199
European ClassificationC08G63/199, B29C49/00B, C08G63/20