Abstract: A compact handheld tool for installing corner pieces in ductwork is disclosed. The tool has V-shaped jaws that surround a duct corner. A corner piece to be installed on a flange of the duct is placed against a first of the jaws, and a second jaw closes against the a first jaw, pressing the corner piece against the flange. A third jaw engages with an edge of the flange and presses the edge over the corner piece. The tool can install a corner piece in a single operation independent of the orientation of the duct or tool.

Abstract: A process for cathodic electrodeposition of small particle, below 20 .mu.m, resin powders coated with precipitated or adsorbed metal oxide or hydroxide at a pH above the isoelectric point giving a zeta potential of at least as negative as minus 35 millivolts. The preparation of the bath is also part of the invention.

Abstract: A process for cathodic electrodeposition of small particle, below 20 .mu.m, resin powders coated with precipitated or adsorbed metal oxide or hydroxide at a pH below the isoelectric point giving a zeta potential of at least 35 millivolts. The preparation of the bath is also part of the invention.

Abstract: Poly(organophosphazenes) containing one alkyl group per each three repeating units are prepared. These polymers are represented by the structure: ##STR1## wherein R is alkyl containing from 1 to 10 carbon atoms; wherein X is selected from the group consisting of chlorine and --OR' radicals in which R' is the same as R or is selected from the group consisting of substituted alkyl radicals and substituted or unsubstituted aryl radicals and wherein n is from 3 to 15,000.Polymers of the above structure in which X is chlorine are prepared by thermally polymerizing a monoalkyl-pentachloro-cyclotriphosphazene having the formula N.sub.3 P.sub.3 Cl.sub.5 R in which R is as defined above. Polymers of the above structure in which X is an --OR' radical as defined above are prepared by thermally polymerizing the monoalkyl-pentachloro-cyclotriphosphazene and then reacting the resultant linear polymer with a suitable alkali metal alkoxide or aryloxide.