Process for producing cross-linked resins

Details Process for producing cross-linked resins Process for producing cross-linked resins

1987-03-06

1988-08-02

Short, Patricia

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

Synthetic resins

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

525437, 528172, 528286, 528288, 528290, C08G 6376

Patent

active

047614579

ABSTRACT:
A process for producing a novel cross-linked resin which comprises: reacting a bis(2-oxazoline) compound with a polyesterpolycarboxylic acid which has carboxylic acid ester linkages in the molecule, in an equivalent ratio of the bis(2-oxazoline) compound to the carboxyls of the polyesterpolycarboxylic acid not less than 1 at an elevated temperature.
The cross-linked resin has excellent physical and chemical properties inclusive of mechanical strength and resistance to various chemicals, and may be usable, for example, for embedded moldings of electrical machinery, electric insulating materials, films, adhesives and coating compositions.
The polyesterpolycarboxylic acid which has carbonic acid ester linkages as well as carboxylic acid ester linkages in the molecule provides a cross-linked resin which is in particular excellent in elongation and impact strength.

REFERENCES:
patent: 3244771 (1966-04-01), Krauss
patent: 3966836 (1976-06-01), de Cleur
patent: 4137221 (1979-01-01), Hara
patent: 4474942 (1984-10-01), Sano

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