Treatment of polyurethane cellular products

Claim 1

THE METHOD OF LOWERING THE COMPRESSION AND OF IMPROVING THE HUMIDITY AGING OF CURED POLYURETHANE FOAMS PREPARED FROM WATER, ORGANIC POLYISOCYANATES AND ACTIVEHYDROGEN-CONTAINING POLYMERIC MATERIALS SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYESTERAMIDES, POLYALKYLENE ETHER GLYCOLS AND MIXTURES THEREOF, SAID POLYMERIC MATERIALS HAVING AN AVERAGE MOLECULAR WEIGHT RANGING FROM 1000 TO 5000, AN ACID NUMBER NOT GREATER THAN 5, AN HYDROXYL NUMBER RANGING FROM 20 TO 110, WHICH COMPRISES SUBJECTING THE FULLY CURED POLYURETHANE FOAM TO A WATER EMULSION OF AT LEAST ONE LOW VOLATILE, HIGH BOILING, LOW WATER SOLUBLE ORGANIC PLASTICIZER SELECTED FROM THE GROUP CONSISTING OF BUTYL LAURATE, DIETHYLENE GLYCOL MONOLAURATE, ETHYL OLEATE, BUTYL OLEATE, AMYL OLEATE, N-BUTYL STEARATE, AMYL STEARATE, GLYCEROL MONOSTEARATE, DIETHYLENE GLYCOL STEARATE, TRIOCTYL PHOSPHATE, TRIPHENYL PHOSPHATE, TRICRESYL PHOSPHATE, TRIBUTYL GLYCOL PHOSPHATE, OCTYL DIPHENYL PHOSPHATE, CRESYL DIPHENYL PHOSPHATE, METHYL ABIETATE, METHYL DIHYDROABIETATE, ETHYLENE GLYCOL DIABIETATE, GLYCEROL MONORICINOLEATE, ETHYL RICINOLEATE, POLYETHYLENE GLYCOL, GLYCEROL TRIPROPIONATE, TRIETHYLENE GLYCOL DI-2ETHYLHEXOATE, POLYETHYLENE GLYCOL DI-2-ETHYLHEXOATE, CHLORINATED DIPHENYLS, AMYL DIPHENYL, DIOCTYL ADIPATE, DIBUTOXY ETHYL ADIPATE, DIBUTYL SEBACATE, DIOCTYL SEBACATE, TRIETHYL CITRATE, TRIBYTLY CITRATE, METHYL PHTHALYL ETHYL GLYCOLLATE, GLYCERYL TRIBENZOATE, DIETHYL OXALATE IN AN AMOUNT SO THAT AT LEAST 4% BY WEIGHT OF PLASTICIZER BASED ON THE ORIGINAL WEIGHT OF THE FOAM SO-TREATED IS RETAINED, AND DRYING THE SO TREATED FULLY CURED POLYURETHANE FOAM TO REMOVE MOISTURE.

Claim 2

THE METHOD OF LOWERING THE COMPRESSION AND OF IMPROVING THE HUMIDITY AGING OF CURED POLYURETHANE FOAMS PREPARED FROM WATER, ORGANIC POLYISOCYANATES AND ACTIVEHYDROGEN-CONTAINING POLYMERIC MATERIALS SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYESTERAMIDES, POLYALKYLENE ETHER GLYCOLS AND MIXTURES THEREOF, SAID POLYMERIC MATERIALS HAVING AN AVERAGE MOLECULAR WEIGHT RANGING FROM 1000 TO 5000, AN ACID NUMBER NOT GREATER THAN 5, AN HYDROXYL NUMBER RANGING FROM 20 TO 110, WHICH COMPRISES SUBJECTING THE FULLY CURED POLYURETHANE FOAM TO A WATER EMULSION OF AT LEAST ONE LOW VOLATILE, HIGH BOILING, LOW WATER SOLUBLE ORGANIC PLASTICIZER SELECTED FROM THE GROUP CONSISTING OF BUTYL LAURATE, DIETHYLENE GLYCOL MONOLAURATE, ETHYL OLEATE, BUTYL OLEATE, AMYL OLEATE, N-BUTYL STEARATE, AMYL STEARATE, GLYCEROL MONOSTEARATE, DIETHYLENE GLYCOL STEARATE, TRIOCTYL PHOSPHATE, TRIPHENYL PHOSPHATE, TRICRESYL PHOSPHATE, TRIBUTYL GLYCOL PHOSPHATE, OCTYL DIPHENYL PHOSPHATE, CRESYL DIPHENYL PHOSPHATE, METHYL ABIETATE, METHYL DIHYDROABIETATE, ETHYLENE GLYCOL DIABIETATE, GLYCEROL MONORICINOLEATE, ETHYL RICINOLEATE, POLYETHYLENE GLYCOL, GLYCEROL TRIPROPIONATE, TRIETHYLENE GLYCOL DI-2ETHYLHEXOATE, POLYETHYLENE GLYCOL DI-2-ETHYLHEXOATE, CHLORINATED DIPHENYLS, AMYL DIPHENYL, DIOCTYL ADIPATE, DIBUTOXY ETHYL ADIPATE, DIBUTYL SEBACATE, DIOCTYL SEBACATE, TRIETHYL CITRATE, TRIBYTLY CITRATE, METHYL PHTHALYL ETHYL GLYCOLLATE, GLYCERYL TRIBENZOATE, DIETHYL OXALATE IN AN AMOUNT SO THAT AT LEAST 4% BY WEIGHT OF PLASTICIZER BASED ON THE ORIGINAL WEIGHT OF THE FOAM SO-TREATED IS RETAINED, AND DRYING THE SO TREATED FULLY CURED POLYURETHANE FOAM TO REMOVE MOISTURE.