Abstract 1. A METHOD FOR REMOVING A WATER INSOLUBLE COATING FROM A SUBSTRATE TO WHICH THE COATING IS NORMALLY ADHERENT WHICH COMPRISES: 8A) DEPOSITING ON SAID SURFACE A BARRIER COATING OF A WATER SOLUBLE MATERIAL; (B) EFFECTING THE ACCUMULATION ON SAID BARRIER COATING OF SAID WATER-INSOLUBLE COATING; (C) EFFECTING THE REMOVAL OF SAID WATER-SOLUBLE COATING BY SUBJECTING SAID COATED SUBSTRATE TO THE ACTION OF AN AQUEOUS SOLUTION CONTAINING A WATER SOLUTION BARRIER COATING MATERIAL WHICH SOLUTION, UPON SUBSEQUENT DRYING, REDEPOSITS SAID WATER SOLUBLE BARRIER COATING ON SAID SUBSTRATE, THE TEMPERATURE OF SAID SOLUTION BEING IN THE RANGE OF ABOUT 170*-205*F. AND THE PERIOD OF TIME OF SUBJECTING SAID SUBSTRATE TO SAID ACTION BEING A TIME SUFFICIENT FOR THE TEMPERATURE OF SAID SUBSTRATE TO APPROACH THAT OF SAID SOLUTION; AND (D) DRYING SAID SUBSTRATE TO EFFECT SAID REDEPOSITION.
A METHOD FOR REMOVING A WATER INSOLUBLE COATING FROM A SUBSTRATE TO WHICH THE COATING IS NORMALLY ADHERENT WHICH COMPRISES: 8A) DEPOSITING ON SAID SURFACE A BARRIER COATING OF A WATER SOLUBLE MATERIAL; (B) EFFECTING THE ACCUMULATION ON SAID BARRIER COATING OF SAID WATER-INSOLUBLE COATING; (C) EFFECTING THE REMOVAL OF SAID WATER-SOLUBLE COATING BY SUBJECTING SAID COATED SUBSTRATE TO THE ACTION OF AN AQUEOUS SOLUTION CONTAINING A WATER SOLUTION BARRIER COATING MATERIAL WHICH SOLUTION, UPON SUBSEQUENT DRYING, REDEPOSITS SAID WATER SOLUBLE BARRIER COATING ON SAID SUBSTRATE, THE TEMPERATURE OF SAID SOLUTION BEING IN THE RANGE OF ABOUT 170*-205*F. AND THE PERIOD OF TIME OF SUBJECTING SAID SUBSTRATE TO SAID ACTION BEING A TIME SUFFICIENT FOR THE TEMPERATURE OF SAID SUBSTRATE TO APPROACH THAT OF SAID SOLUTION; AND (D) DRYING SAID SUBSTRATE TO EFFECT SAID REDEPOSITION.
Claim 2
Independent Claim
135 words
A METHOD FOR REMOVING A WATER INSOLUBLE COATING FROM A SUBSTRATE TO WHICH THE COATING IS NORMALLY ADHERENT WHICH COMPRISES: 8A) DEPOSITING ON SAID SURFACE A BARRIER COATING OF A WATER SOLUBLE MATERIAL; (B) EFFECTING THE ACCUMULATION ON SAID BARRIER COATING OF SAID WATER-INSOLUBLE COATING; (C) EFFECTING THE REMOVAL OF SAID WATER-SOLUBLE COATING BY SUBJECTING SAID COATED SUBSTRATE TO THE ACTION OF AN AQUEOUS SOLUTION CONTAINING A WATER SOLUTION BARRIER COATING MATERIAL WHICH SOLUTION, UPON SUBSEQUENT DRYING, REDEPOSITS SAID WATER SOLUBLE BARRIER COATING ON SAID SUBSTRATE, THE TEMPERATURE OF SAID SOLUTION BEING IN THE RANGE OF ABOUT 170*-205*F. AND THE PERIOD OF TIME OF SUBJECTING SAID SUBSTRATE TO SAID ACTION BEING A TIME SUFFICIENT FOR THE TEMPERATURE OF SAID SUBSTRATE TO APPROACH THAT OF SAID SOLUTION; AND (D) DRYING SAID SUBSTRATE TO EFFECT SAID REDEPOSITION.