Thiokol Corporation

Daniel J Smith

Eugene R Bertozzi

Robert Barclay, Jr

Adam J Patarcity

David H Packer

A novel group of amine formal polymers of the general formula: ##STR1## wherein R is hydrogen, --CH.sub.2 R' or ##STR2## R' is hydrogen or --CH.sub.2 R' and R' is hydrogen, alkyl or hydroxyalkyl, n is 1 to 8, m is 0 to 8 and R, R', and R' may be the same or different. The polymers may be prepared by reacting bis(haloethyl)formals with ammonia or primary amines and/or monoalkanolamines in the presence of aqueous alkali. The products may be used as, e.g., rust inhibitors, acid scavengers, antioxidants and epoxide and urethane curing catalysts. Certain of the polymers are especially useful as epoxide curing agents.

Amine formal polymers and process of making the same

Elastomeric compositions of discrete parts of curable polymer and a curing agent are converted, by means of a portable, hand held conversion and dispensing apparatus, to a curable mass. The apparatus in a single compact package includes means for (1) receiving the uncured composition or article (2) breaking or fragmenting the composition (3) conveying the fragmented composition to a mixing zone (4) mixing the curable composition and (5) discharging or dispensing the mixed curable material into or on a substrate for in situ curing thereat. Also included is a power source and power transmission means wherein different rotational speeds and directions are obtained between the conveying and mixing means.

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Washington Crossing, PA, United States of America

Daniel J Smith