Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1995-07-21
1997-09-02
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
528298, 528300, 528301, 528302, 528303, 528306, 528307, 528308, 5283086, 528492, 528502R, 528503, C08F 600
Patent
active
056632908
ABSTRACT:
A novel process has been developed for the crystallization of poly(ethylenenaphthalenedicarboxylate) (PEN) and its copolymers. The process comprises the step of maintaining the amount of water in said poly(ethylenenaphthalenedicarboxylate) below a critical moisture content ceiling throughout processing such that a separate drying step is not required.
REFERENCES:
patent: 3960817 (1976-06-01), Morawetz et al.
patent: 4374974 (1983-02-01), Hay
patent: 4798883 (1989-01-01), Tung et al.
patent: 4963644 (1990-10-01), Duh
Heise William Herbert
Howell, Jr. Earl Edmondson
Knight Joseph Franklin
Williams Michael Alan
Acquah Samuel A.
Eastman Chemical Company
Gwinnell Harry J.
Harding Karen A.
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