Brazing pastes

Claim 1

A GEL-TYPE EMULSION COMPOSITION ADAPTED FOR USE AS A VEHICLE FOR JOINING METAL PASTES AND CONSISTING ESSENTIALLY OF AN OIL-IN-WATER EMULSION GEL HAVING A GELLED AQUEOUS PHASE AS THE CONTINUOUS PHASE AND HAVING A LIQUID HYDROCARBON COMPONENT AS THE EMULSIFIED DISCONTINUOUS PHASE, SAID COMPOSITION CONSISTING ESSENTIALLY OF: (A) WATER IN AN AMOUNT BETWEEN ABOUT 14.8% AND 45% BY WEIGHT; (B) A WATER SOLUBLE ALCOHOL COMPONENT HAVING A PLASTICIZING EFFECT ON HYDROXYETHYL CELLULOSE, IN AN AMOUNT BETWEEN ABOUT 45% AND 79.2% BY WEIGHT; (C) HYDROXYETHYL CELLULOSE IN AN AMOUNT BETWEEN ABOUT 0.5% AND 5.4%, BY WEIGHT; (D) A NORMALLY-LIQUID HYDROCARBON COMPONENT HAVING A CONRADSON RESIDUE VALUE BELOW ABOUT 0.5%, IN AN AMOUNT BETWEEN ABOUT 5.0% AND 17.7%, BY WEIGHT; AND (E) AN EMULSIFIER COMPONENT EFFECTIVE TO EMULSIFIER SAID HYDROCARBON COMPONENT AS A DISCONTINUOUS PHASE IN THE AQUEOUS PHASE OF SAID COMPOSITION, SAID EMULSIFIER COMPONENT AMOUNTING TO BE TWEEM ABOUT 0.3% AND 3.0%, BY WEIGHT; SAID EMULSIFIER COMPONENT OF E ABOVE BEING SELECTED FROM THE GROUP CONSISTING OF ALKYL ARYL SULFONATES, POLYOXYETHYLATED FATTY ALCOHOLS, POLYOXYETHYLATED HYDROXY-ACID GLYCERIDE OILS, POLYOXYETHYLATED PARTIAL GLYCERYL/FATTY ACID ESTERS, AND FATTY ACID/DIETHANOLAMINE CONDENSATION PRODUCTS, SAID WATER SOLUBLE ALCOHOL OF B ABOVE BEING SELECTED FROM THE GROUP CONSISTING OF HYDROCARBYL POLYOLS OF 3-6 CARBON ATOMS, AND 3-6 HYDROXYL GROUPS, ALKYLENE GLYCOLS OF 2-8 CARBON ATOMS, POLYOXYALKYLENE GLYCOLS OF 4-8 CARBON ATOMS, ETHANOL AMINES OF 2-6 CARBON ATOMS AND 1 TO 3 HYDROXYL GROUPS, AND MIXTURES OF THE FOREGOING WITH UP TO ABOUT 30% BY WEIGHT OF BRANCHED CHAIN ALKANOLS OF 3-6 CARBON ATOMS; AND SAID NORMALLY-LIQUID HYDROCARBON COMPONENT OF D ABOVE BEING SELECTED FROM THE GROUP CONSISTING OF NORMALLY-LIQUID HYDROCARBONS AND NORMALLY-LIQUID HYDROCARBON-SOLVENT SOLUTIONS OF HEATDEPOLYMERIZABLE POLYMERIC HYDROCARBON GELS.