Filler-fortified polyalkyleneterephthalate molding compositions

Details Filler-fortified polyalkyleneterephthalate molding compositions Filler-fortified polyalkyleneterephthalate molding compositions

1977-06-20

1979-07-31

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

528274, 528309, C08J 320, C08K 714, C08L 6702

Patent

active

041630025

ABSTRACT:
A process for preparing a filler-fortified polyalkyleneterphthalate molding composition which comprises mixing a filler with a precondensate of poly-(1,4-butylene)-terephthalate and/or poly-(1,3-propylene)-terephthalate, forming the resultant mixture into a shape and thereafter polymerizing the precondensate by solid-phase condensation under solid-phase condensation conditions; a molding composition prepared by such a process comprising poly-(1,4-butylene)-terephthalate and/or poly-(1,3-propylene)-terephthalate in an amount of 20 to 98 weight percent and 2 to 80 weight percent of a fortifying filler, the amounts based upon the combined amount of polyester and fortifying filler; a shaped object prepared from molding such a molding composition and the process for molding such a molding composition into a molded shaped article.

REFERENCES:
patent: 3692744 (1972-09-01), Rich et al.
patent: 3814725 (1974-06-01), Zimmerman et al.
patent: 4049635 (1977-09-01), Cleary

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