Method of potting and bonding

Claim 1

A PROCESS FOR POTTING A SOLID COMPONENT WITHIN A CASING, WHICH PROCESS COMPRISES: LOWERING SAID COMPONENT INTO A CASE; SEALING SAID CASE; EVACUATING THE SEALED CASE; INJECTING A FLUID POTTING AND BONDING COMPOSITION INTO SAID CASE; AND CURING THE THUS-PREPARED ASSEMBLY FOR A PERIOD OF TIME SUFFICIENT TO CAUSE SAID COMPOSITION TO SET TO A FIRM FLEXIBLE MASS; SAID POTTING AND BONDING COMPOSITION COMPRISING; AN ACTIVE HYDROGEN CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYHYDROXY COMPOUNDS AND POLYAMINO COMPOUNDS CONTAINING AT LEAST TWO ACTIVE HYDROGEN ATOMS; A POLYSOCYANATE; SAID POLYISOCYANATE BEING PRESENT IN AN AMOUNT RANGING FROM ABOUT STOICHIOMETRIC TO ABOUT 25 WEIGHT PERCENT IN EXCESS OF THE STOICHIOMETRIC QUANTITY WHICH WILL REACT WITH SAID ACTIVE HYDROGEN CONTAINING COMPOUND AND SAID ACTIVE HYDROGEN CONTAINING COMPOUND BEING PRESENT IN AN AMOUNT RANGING FROM ABOUT STOICHIOMETRIC TO ABOUT 15 WEIGHT PERCENT IN EXCESS OF THE STOICHIOMETRIC QUANTITY WHICH WILL REACT WITH AID POLYISOCYANATE; AND FROM 1 TO 15 WEIGHT PERCENT OF AN N-VINYL AMIDE CHARACTERIZED BY A STRUCTURAL FORMULA SELECTED FROM THE GROUP OF FORMULAS CONSISTING OF R''-N(-CH=CH2)-CO-R'' AND H2C=CH-N<(-CO-Z-) WHEREIN: EACH R'' IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, CYCLOALKYL, ARYL, ALKARYL, AND ARALKYL HYDROCARBON GROUPS CONTAINING FROM 1 TO 16 CARBON ATOMS; Z IS SELECTED FROM THE GROUP CONSISTING OF SATURATED, MONOOLEFINIC, AND DIOLEFINIC DIVALENT HYDROCARBON RADICALS CONAINING FROM 3 TO 17 CARBON ATOMS WHICH, TOGETHER WITH THE N ATOM AND THE C ATOM CONNECTED THERETO, FORM A 5 TO 7 MEMBERED RING; AND WHEREIN THE TOTAL NUMBER OF CARBON ATOMS IN THE MOLECULE DOES NOT EXCEED 20.