This polyester resin is produced from PTA and CHDM or NPG ( very low quantity of PETG ) .
Is it possible to use other glycol or how is it possible to riduce crystallization without CHDM and with same performance ?
Thanks
Johnny
Yes. Anything to disrupt the crystalline structure of the PET, e.g. DEG, IPA or branches.
IPA and DEG are ok with 2 % , but crystallization is still very high . To eliminate crystallization ( clear ,never completely)it's necessary
20/30% IPA or more and the performances are very low.Thanks
Johnny
Don't know commercial status of this patent but worth considering:
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