USPatentGranted
I4

Process for preparing containers using branched polyesters

Granted 4 Jan 1977 · no office action yet

Assignee:

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Inventors: Roger M. Schulken, Jr., James R. Overton, Burns Davis · Examiner: · AU 147 · TC 1400

Application
689224
filed 24 May 1976
Publication
Not published
not published
Patent· this page
US T954005
granted 4 Jan 1977

Life of the patent

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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.

Classifications

5 codes
IPC · International Patent Classification
Section B — Performing operations; transporting
  • B29C49/00
Section C — Chemistry; metallurgy
  • C08G63/20
  • C08G63/199
USPC · US Patent Classification
264/98260/75.T

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225 days filing → grant
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