Solid state polymerization of polyesters with low diffusion resi

Details Solid state polymerization of polyesters with low diffusion resi Solid state polymerization of polyesters with low diffusion resi

1994-08-31

1995-05-02

Foelak, Morton

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

Synthetic resins

From carboxylic acid or derivative thereof

5283082, 528481, 528502R, 764143, 764150, C08G 6302, C21B 700, C08F 600

Patent

active

054120632

ABSTRACT:
Polyester prepolymer granules with open-ended cavities provide greatly improved solid state polymerization rates by improving reaction by-product diffusion characteristics.

REFERENCES:
patent: 3586647 (1971-06-01), Kremer
patent: 4755587 (1988-07-01), Rinehart
patent: 4792573 (1988-12-01), Cohn
patent: 4849497 (1989-07-01), Scannapieco
patent: 4876326 (1989-10-01), Rinehart
patent: 4977196 (1990-12-01), Scannapieco
Herman Ludewig, "Polyester Fibres", Chemistry and Technology, pp. 161-166, p. 217, Wiley, 1964.

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