Process for the production of polyester resins

Details Process for the production of polyester resins Process for the production of polyester resins

1997-05-29

1998-04-14

Acquah, Samuel A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528296, 528302, 528308, 528481, 528491, 528492, 528503, 525437, C08F 600

Patent

active

057392692

ABSTRACT:
Process for the production of aromatic polyester resins by polycondensation in the solid state of resins with intrinsic viscosity comprised between 0.1 and 0.45 dl/g, in which the ratio by weight between the hourly flow speed of the inert gas fed to the reactor and the hourly flow speed of the fed polymer is comprised between 0.1 and 0.6.

REFERENCES:
patent: 4064112 (1977-12-01), Rothe et al.
patent: 4161578 (1979-07-01), Herron
patent: 4374975 (1983-02-01), Duh
patent: 5243020 (1993-09-01), Ghisolfi
patent: 5334669 (1994-08-01), Ghisolfi
patent: 5338808 (1994-08-01), Ghisolfi
patent: 5547652 (1996-08-01), Ghisolfi et al.

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