Process for the preparation of soluble synthetic resins which ar

Details Process for the preparation of soluble synthetic resins which ar Process for the preparation of soluble synthetic resins which ar

1986-10-28

1987-11-03

Nielsen, Earl

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

Synthetic resins

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

2041817, 525381, 525382, 525523, 525528, 528121, 528123, 523410, 523417, C08G 5914

Patent

active

047044373

ABSTRACT:
Process for the preparation of soluble synthetic resins which are free from monomeric amines and have NH bonds by reaction of (A) compounds which carry epoxide groups with (B) polyamines, in which the reaction is carried out in a homogeneous phase system in the absence or presence of resin solvents, the polyamine (B) being employed in excess and the resulting reaction product being freed from the unreacted polyamine portions by circulatory distillation in the presence of a resin solvent with the addition of water and supply of heat. The synthetic resins thus prepared are employed as self-crosslinking binders and in combination with crosslinking agents or in modified form for coatings or impregnations.

REFERENCES:
patent: 4031050 (1977-06-01), Jerabek
patent: 4308085 (1981-12-01), Horhold et al.
patent: 4419467 (1983-12-01), Wismer et al.
patent: 4507412 (1985-03-01), Hickner et al.

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