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Process for producing polyesters

  • US 5,296,586 A
  • Filed: 10/29/1992
  • Issued: 03/22/1994
  • Est. Priority Date: 10/29/1992
  • Status: Expired due to Fees
First Claim
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1. A process for production of a polyester, comprising, heating and agitating one or more monomers or oligomers, polymerizable to a polyester upon heating, in an inert liquid medium at a temperature at which said liquid medium boils, in the absence of a nonvolatile surfactant, provided that:

  • a volatile product of said polymerizing is removed by codistillation with said inert liquid medium;

    said monomers and said polyester are not swollen nor dissolved by said inert liquid medium.

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