Butadiene-styrene-albumin adhesive composition and method of joining members therewith

Claim 2

AN ADHESIVE COMPRISING A COMPATIBLE AND STABILIZED MIXTURE INCLUDING (A) 50% TO 70% BY WEIGHT ON A DRY SOLIDS BASIS OF AN AQUEOUS SOLUTION OF ALBUMIN BUFFERED TO A PH OF 7.5 TO 8.5, SAID ALBUMIN BEING SELECTED FROM THE GROUP CONSISTING OF EGG ALBUMIN, BLOOD ALBUMIN, AND MIXTURES THEREOF, AND (B) 50% TO 30% BY WEIGHT ON A DRY SOLIDS BASIS OF BUTADIENE-STYRENE LATEX CONTAINING FROM 40% TO 50% BUTADIENE AND 60% TO 50% OF STYRENE IN THE POLYMERIZATION MOLECULE, SAID LATEX BEING ADJUSTED TO ESSENTIALLY THE SAME PH AS THE ALBUMIN SOLUTION.

Claim 3

IN A METHOD OF ADHESIVELY JOINING MEMBERS, THE STEPS COMPRISING ASSEMBLY SAID MEMBERS IN FACE-TO-FACE RELATIONSHIP WITH AN AQUEOUS ADHESIVE INTERPOSED THEREBETWEEN AND INCLUDING AN COMPONENTS: (A) 50% TO 70% BY WEIGHT ON A DRY SOLIDS BASIS OF AN AQUEOUS SOLUTION OF ALBUMIN BUFFERED TO A PH OF 7.5 TO 8.5 WITH AN ALKALINE BUFFER SALT SELECTED FROM THE GROUP CONSISTING OF BORAX, SODIUM CITRATE, MONO-SODIUM PHOSPHATE, MONOPOTASSIUM PHOSPHATE, DISODIUM PHOSPHATE, DISPOTASSIUM PHOSPHATE, AND MIXTURES THEREOF, SAID ALBUMIN BEING SELECTED FROM THE GROUP CONSISTING OF EGG ALBUMIN, BLOOD ALBUMIN, AND MIXTURES THEREOF, AND (B) 80% TO 30% BY WEIGHT ON A DRY SOLIDS BASIS OF BUTADIENE-STRYENE LATEX CONTAINING FROM 40% TO 50% OF BUTADIENE AND 60% TO 50% OF STYRENE IN THE POLYMERIZATION MOLECULE, ADJUSTED TO ESSENTIALLY THE SAME PH AS THE ALBUMIN SOLUTION, AND APPLYING HEAT TO SAID ADHESIVE TO REMOVE WATER THEREFROM AND TO DENATURE AND COAGULATE SAID ALBUMIN AND SIMUTANEOUSLY TO BREAK SAID LATEX, THEREBY ACTIVATING SAID ADHESIVE WITH SAID COMPONENTS RETAINING HEIR COMPATIBILITY.

Claim 4

IN A METHOD OF ADHESIVELY JOINING MEMBERS, THE STEPS COMPRISING ASSEMBLY SAID MEMBERS IN FACE-TO-FACE RELATIONSHIP WITH AN AQUEOUS ADHESIVE INTERPOSED THEREBETWEEN AND INCLUDING AN COMPONENTS: (A) 50% TO 70% BY WEIGHT ON A DRY SOLIDS BASIS OF AN AQUEOUS SOLUTION OF ALBUMIN BUFFERED TO A PH OF 7.5 TO 8.5 WITH AN ALKALINE BUFFER SALT SELECTED FROM THE GROUP CONSISTING OF BORAX, SODIUM CITRATE, MONO-SODIUM PHOSPHATE, MONOPOTASSIUM PHOSPHATE, DISODIUM PHOSPHATE, DISPOTASSIUM PHOSPHATE, AND MIXTURES THEREOF, SAID ALBUMIN BEING SELECTED FROM THE GROUP CONSISTING OF EGG ALBUMIN, BLOOD ALBUMIN, AND MIXTURES THEREOF, AND (B) 80% TO 30% BY WEIGHT ON A DRY SOLIDS BASIS OF BUTADIENE-STRYENE LATEX CONTAINING FROM 40% TO 50% OF BUTADIENE AND 60% TO 50% OF STYRENE IN THE POLYMERIZATION MOLECULE, ADJUSTED TO ESSENTIALLY THE SAME PH AS THE ALBUMIN SOLUTION, AND APPLYING HEAT TO SAID ADHESIVE TO REMOVE WATER THEREFROM AND TO DENATURE AND COAGULATE SAID ALBUMIN AND SIMUTANEOUSLY TO BREAK SAID LATEX, THEREBY ACTIVATING SAID ADHESIVE WITH SAID COMPONENTS RETAINING HEIR COMPATIBILITY.