General Electric Company

Other

Richard J Jablonski

Denis R Pauze

Daniel Kruh

Otto S Zamek

Denis R Pauze'

An aircraft emergency apparatus including a disposable air filtration mask for short term breathing in normally disabling breathing conditions, and the combination of such an air filtration mask with other aircraft emergency apparatus to enhance accessability and use thereof by aircraft occupants.

Air filtering apparatus

Superior wire enamels comprise polyester imides prepared in the presence of a monophenyl ether of a glycol having a free secondary hydroxyl group and dissolved in a solvent comprising predominantly a polar oxygenated compound selected from a monoether or monoester of an alkylene, or polyalkylene, glycol. Electrical conductors coated with such enamels are also disclosed.

Electrical conductors coated with polyester imide wire enamels

Polyester imide wire enamels

New and useful polymers are prepared by reacting olefin-terminated prepolymeric materials with simple polyamine, by reacting simple olefins with amine-terminated prepolymers and by reacting olefin-terminated prepolymers with amine-terminated prepolymers. The new and useful polymeric materials so obtained can be cured as with heat, with or without catalyst, to provide products useful for preparing films, laminates, composites, prepregs, molding materials, varnishes, wire enamels and the like.

Novel polymers of olefin terminated prepolymers and amine terminated

The invention relates to polymeric coating compositions which are at least partially soluble in water. Polyesterimides, polyesteramideimides, polyesterimidehydantoins and polyesterimide urethanes are prepared which have enhanced solubility in water. The reactants which form the various polymers are reacted to essentially a zero acid number with essentially no free carboxyl groups or those which are not part of the formed imide moiety or linkages. At least some of the imide rings are then cleaved or split with amine material to enhance solubility in water. The compositions are particularly useful as electrical insulating coatings or wire enamels and can also be used in preparing laminates and composites and for general coating purposes.

Coating compositions

The invention relates to polymeric coating compositions which are long-lived colloidal suspensions or dispersions in water. Polyesters, polyesterimides, polyesteramides, polyesteramideimides, polyester hydantoins and polyester urethanes are prepared. Amine material is added to the basic composition and reacted in such amounts that a colloidal dispersion is formed with water. The coating compositions are particularly useful as electric insulating coatings or wire enamels which are readily coated on a metallic or other substrate and when cured form coatings having good electrical and physical properties.

Imide group containing solutions are prepared by reacting the Diels-Alder reaction product of furan and maleic anhydride with amine, heating the resultant amic acid to form the maleimide material with regeneration of furan. The imide-containing products can be isolated.

Growing community of inventors

Scotia, NY, United States of America

Richard J Jablonski