Polyurethane polymers

Claim 1

A METHOD OF PREPARING POLYURETHANE POLYMERS PROCESSABLE BY THERMOLPLASTIC TECHNIQUES WHICH COMPRISES INTIMATELY MIXING AN ORGANIC COMPOUND CONTAING ACTIVE HYDROGEN ATOMS WHICH ARE REACTIVE WITH -NCO GROUPS AND SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYETHERS, POLYTHIOETHERS AND POLYACETALS AND AND ORGANIC DIISOCYANATE, SUBSTANTIALLY IMMEDIATELY INTRODUCING SAID MIXTURE INTO AN INERT LIQUID IN WHICH THE REACTIVE COMPONENTS AND THE RESULTING POLYURETHANE POLYMER ARE SUBSTANTIALLY INSOLUBLE AT OPERATING TEMPERATURES, SAID INERT LIQUID BEING HEATED TO A TEMPERATURE OF FROM ABOUT 70* C. TO ABOUT 170*C., MAINTAINING SAID MIXTURE WITHIN SAID INERT LIQUID UNTIL SOLIDIFICATION OF SAID POLYMER OCCURS AND SEPARATING SAID SOLIDIFIED PRODUCT FROM SAID INERT LIQUID.

Claim 2

A METHOD OF PREPARING POLYURETHANE POLYMERS PROCESSABLE BY THERMOLPLASTIC TECHNIQUES WHICH COMPRISES INTIMATELY MIXING AN ORGANIC COMPOUND CONTAING ACTIVE HYDROGEN ATOMS WHICH ARE REACTIVE WITH -NCO GROUPS AND SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYETHERS, POLYTHIOETHERS AND POLYACETALS AND AND ORGANIC DIISOCYANATE, SUBSTANTIALLY IMMEDIATELY INTRODUCING SAID MIXTURE INTO AN INERT LIQUID IN WHICH THE REACTIVE COMPONENTS AND THE RESULTING POLYURETHANE POLYMER ARE SUBSTANTIALLY INSOLUBLE AT OPERATING TEMPERATURES, SAID INERT LIQUID BEING HEATED TO A TEMPERATURE OF FROM ABOUT 70* C. TO ABOUT 170*C., MAINTAINING SAID MIXTURE WITHIN SAID INERT LIQUID UNTIL SOLIDIFICATION OF SAID POLYMER OCCURS AND SEPARATING SAID SOLIDIFIED PRODUCT FROM SAID INERT LIQUID.

Claim 3

A METHOD OF PREPARING POLYURETHANE POLYMERS PROCESSABLE BY THERMOPLASTIC TECHNIQUES WHICH COMPRISES INTIMATELY MIXING AN ORGANIC COMPOUND CONTAINING ACTIVE HYDROGEN ATOMS WHICH ARE REACTIVE WITH NCO GROUPS AND SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYETHERS, POLYTHIOETHERS AND POLYACETALS AND AN ORGANIC DIISOCYANATE, SUBSTANTIALLY IMMEDIATELY INTRODUCTING SAID MIXTURE INTO AN INERT LIQUID IN WHICH THE REACTIVE COMPONENTS AND THE RESULTING POLYURETHANE POLYMER ARE SUBSTANTIALLY INSOLUBLE AT OPERATING TEMPERATURES, SAID INERT LIQUID BEING HEATED TO A TEMPERATURE OF FROM ABOUT 70* C. TO ABOUT 170*C., MAINTAINING SAID MIXTURE WITHIN SAID INERT LIQUID UNTIL SOLIDIFICATION OF SAID POLYMER OCCURS, SEPARATING SAID SOLIDIFIED PRODUCTS FROM SAID INERT LIQUID, PASSING SAID SOLIDIFIED PRODUCT INTO A LOW BOILING INERT LIQUID, HAVING A BOILING POINT LESS THAN 100*C. AND SELECTED FROM THE GROUP CONSISTING OF PETROLEUM ETHER, CARBONTETRACHLORIDE, BENZINE, ETHYLENETRICHLORIDE, BENZENE, XYLENE, ACETONE AND ETHYL ACETATE AND EVAPORATING SAID LOW BOILING LIQUID FROM SAID PRODUCT.

Claim 4

A METHOD OF PREPARING POLYURETHANE POLYMERS PROCESSABLE BY THERMOPLASTIC TECHNIQUES WHICH COMPRISES INTIMATELY MIXING AN ORGANIC COMPOUND CONTAINING ACTIVE HYDROGEN ATOMS WHICH ARE REACTIVE WITH NCO GROUPS AND SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYETHERS, POLYTHIOETHERS AND POLYACETALS AND AN ORGANIC DIISOCYANATE, SUBSTANTIALLY IMMEDIATELY INTRODUCTING SAID MIXTURE INTO AN INERT LIQUID IN WHICH THE REACTIVE COMPONENTS AND THE RESULTING POLYURETHANE POLYMER ARE SUBSTANTIALLY INSOLUBLE AT OPERATING TEMPERATURES, SAID INERT LIQUID BEING HEATED TO A TEMPERATURE OF FROM ABOUT 70* C. TO ABOUT 170*C., MAINTAINING SAID MIXTURE WITHIN SAID INERT LIQUID UNTIL SOLIDIFICATION OF SAID POLYMER OCCURS, SEPARATING SAID SOLIDIFIED PRODUCTS FROM SAID INERT LIQUID, PASSING SAID SOLIDIFIED PRODUCT INTO A LOW BOILING INERT LIQUID, HAVING A BOILING POINT LESS THAN 100*C. AND SELECTED FROM THE GROUP CONSISTING OF PETROLEUM ETHER, CARBONTETRACHLORIDE, BENZINE, ETHYLENETRICHLORIDE, BENZENE, XYLENE, ACETONE AND ETHYL ACETATE AND EVAPORATING SAID LOW BOILING LIQUID FROM SAID PRODUCT.