Celanese Gmbh

Louis E Trapasso

John R Costanza

Charles L Smart

Charles V Juelke

William B Horback

Thermosetting resin coatings are provided which cure rapidly and exothermically at ambient temperatures. Accelerated crosslinking is accomplished by the reaction of oxalic acid esters with amine-containing polymeric compositions.

Amine containing resin with oxalate esters for casting

Non-woven fabric binders of ethylene-vinyl ester copolymers containing effective amounts of an alkyl polyether.

Ethylene-vinyl acetate polymer binders for non-woven fabrics

Binders for non-woven fabrics prepared from ethylene-vinyl acetate copolymers, a substituted acrylamide monomer and a vinyl ester monomer, reaction being made to take place under controlled conditions to effect over-polymerization.

Non-woven fabric binders

There is provided a process for preparing water-soluble polyelectrolytes by a water-in-oil emulsion process. A mixture of a surfactant, free radical initiator, at least one water-soluble, oil-insoluble, ethylenically unsaturated monomer adapted to polymerize under refluxing conditions, oil and water (the oil and water being adapted to form an azeotropic boiling mixture) is heated with vigorous agitation. The monomer polymerizes at the reflux temperature under the vigorous agitation with a concomitant simultaneous loss of water. Finely divided, water-soluble particles result.

Refluxing water-in-oil emulsion process for preparing water-soluble

Thermosetting resin compositions are provided which cure rapidly and exothermically at ambient temperatures. Accelerated crosslinking is accomplished by the reaction of polyisopropenyl ester with amine-containing polymeric compositions.

Polyamine coating compositions

This invention provides novel guar gum formate esters having a degree of substitution between about 0.01 and 3.0, and further provides a process for producing guar gum formate esters by the interaction of guar gum powder or guar gum splits with concentrated formic acid. The invention process represents a general method for formylation of polygalactomannan gums. The polygalactomannan gum formate esters are useful as flocculants, and as sizing agents for paper and textiles.

Polygalactomannan gum formate esters

There is provided a process for preparing polyelectrolytes by a water-in-oil emulsion process. A water-in-oil azeotropic emulsion is heated with agitation and a concentrated aqueous solution of small amounts of a polymerization initiator and gel inhibitor and at least one water-soluble vinyl monomer adapted to polymerize at reflux temperature with a concomitant loss of water by azeotropic distillation is added thereto to polymerize said water-soluble monomer. The polymerized product including a gel inhibitor forms a gel-free aqueous solution.

Water in oil emulsion process for preparing gel-free polyelectrolyte

This invention relates to di-olefinically unsaturated compounds which contain two quaternary ammonium moieties. Polymers and copolymers of these polyfunctional compounds are characterized by high charge density, and find application as flocculants, paper sizes, and electroconductive coatings.

Bis-quaternary ammonium compounds and polymers

A method of crosslinking polymers containing unreacted olefinic groups at room temperature is disclosed. This process involves adding for each mole of olefin group present in the polymer three equivalents of a diisocyanate group-containing compound and one mole of nitromethane. This mixture forms in situ the acyl nitrile oxide group which then reacts with the olefin groups present in the polymer to effect a crosslinking reaction.

Crosslinking of diolefinic polymers using diacyl nitrile oxides

The quaternary ammonium or phosphonium salts of halogenated lower alkene compounds such as 4-chloro-2-alkenyl trimethyl ammonium chloride are prepared by reacting a tri-lower alkyl amine or tri-lower alkyl phosphine with 3,4-dihaloalkene-1.

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Watchung, NJ, United States of America

Louis E Trapasso