Mixture, polyester composition, film and procedures for...

Details Mixture, polyester composition, film and procedures for... Mixture, polyester composition, film and procedures for...

2005-08-16

2011-11-22

Jagannathan, Vasu (Department: 1764)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C528S272000, C528S271000

Reexamination Certificate

active

08063122

ABSTRACT:
The present invention relates to mixtures comprising at least one polyester precursor and at least one alkali- and/or alkaline-earth metal salt where the mixture contains at least one phosphonic acid ester of the Formula (I)in-line-formulae description="In-line Formulae" end="lead"?(RO)OC—R′—PO(OR)2  (I)in-line-formulae description="In-line Formulae" end="tail"?where independently R represents a group with 1 to 60 carbon atoms and R′ represents a group with 1 to 20 carbon atoms. Furthermore, the present invention relates to the polyester compositions which can be produced from the mixtures and to the resulting polyester films.

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