Process for the production of polymer-containing aromatic polyet

Details Process for the production of polymer-containing aromatic polyet Process for the production of polymer-containing aromatic polyet

1982-12-20

1985-03-19

Kight, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521163, 525131, 526209, 528 75, 528 68, 528372, 564393, 564394, 564396, 564397, 564399, 564402, 564405, 564408, 564414, 564412, C08G 1814, C08G 6702

Patent

active

045060398

ABSTRACT:
Polymer-containing polyether polyamines containing terminal aromatically-bound amino groups are produced by in situ polymerization of a polyether polyamine with an olefinically unsaturated monomer. The polyether polyamine starting material must have terminal aromatic amino groups, a molecular weight of from 800 to 10,000 and an aromatic amino group content of from 0.3 to 16 wt. %. Suitable olefinically unsaturated monomers include .alpha.,.beta.-unsaturated nitriles, aromatic vinyl compounds, .alpha.,.beta.-unsaturated carboxylic acids and esters thereof, vinyl esters, vinyl halides, vinylidene halides, .alpha.,.beta.-unsaturated carboxylic acid amides and aminoalkyl esters of unsaturated carboxylic acids. Acrylonitrile/styrene mixtures are preferred monomers. The starting materials are employed in quantities such that the product modified polyether polyamine contains from 1 to 60 wt. % polymer or graft-polymer. The product polyamines are particularly useful in the production of polyurethanes.

REFERENCES:
patent: 4130542 (1978-12-01), Chang et al.
patent: 4272619 (1981-06-01), Balle et al.
patent: 4286074 (1981-08-01), Davis et al.
patent: 4359571 (1982-11-01), Bernstein et al.

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