Solid phase polyester polycondensation

Details Solid phase polyester polycondensation Solid phase polyester polycondensation

1973-08-30

1976-06-01

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 75T, C08G 17003

Patent

active

039608174

ABSTRACT:
Solid phase polycondensation of thermoplastic polyester melt precondensate is effected at a temperature from 50.degree. to 5.degree.C below the melting point of the precondensate, at a vacuum below 1 torr and in contact with a streaming inert gas.

REFERENCES:
patent: 2901466 (1959-08-01), Kibler et al.
patent: 2921052 (1960-01-01), Caldwell et al.
patent: 3544523 (1970-12-01), Maxion
patent: 3544525 (1970-12-01), Balint et al.
patent: 3576773 (1971-04-01), Vaginay
patent: 3728309 (1973-04-01), Maxion
patent: 3801547 (1974-04-01), Hoeschele
patent: 3816377 (1974-06-01), Okuzumi

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