Process for the preparation of modified phenolic resins

Details Process for the preparation of modified phenolic resins Process for the preparation of modified phenolic resins

1994-03-16

1995-01-10

Kight, III, John

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5255015, 528129, 528149, 528155, C08L 6100

Patent

active

053808002

ABSTRACT:
Process for the preparation of modified phenolic resins in which the starting components used for preparation of these modified phenolic resins are subjected to a condensation reaction under pressure and in the presence of an inert organic solvent which forms an azeotrope with water, and in which the water is removed from the reaction mixture continuously by azeotropic distillation. An improved space/time yield is achieved by this pressure distillation.

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patent: 4097463 (1978-06-01), Culbertson
patent: 4182697 (1980-01-01), Schmidt et al.
patent: 4398016 (1983-08-01), Homma et al.
patent: 4578448 (1986-03-01), Brode et al.
patent: 4731430 (1988-03-01), Kempter et al.
patent: 5073623 (1991-12-01), Prantl et al.
patent: 5096996 (1992-03-01), Hesse et al.

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