Polypropylene carpet fibers

Claim 1

A METHOD FOR PROVIDING A CARPET OF GOOD TUFT RESILIENCE WOVEN FROM FIBER COMPRISING: HOMOPOLYMERS AND COPOLYMERS OF PROPYLENE, WHICH COMPRISES: (A) SPINNING POLYPROPYLENE CONTINUOUS FILAMENTS FROM POLYPROPYLENE RESIN; (B) COMBINING SAID FILAMENTS INTO CONTINUOUS FILAMENT AND STAPLE YARNS; (C) BULKING THE RESLUTING POLYPROPYLENE YARN; (D) IMMERSING THE BULKED YARN IN A BATH OF A POLYFUNCTIONAL MONOMER AT A TEMPERATURE BETWEEN 20* AND 120*C. SELECTED FROM THE GROUP CONSISTING OF DIVINYL BENZENE, THE MONO-, DI-, TRI- AND TETRA-ETHYLENE GLYCOL DIACRYLATS, THE MONO-, DI, TRI-AND TETRA-ETHYLENE GLYCOL DIMETHACRYLATES, VINYL ACRYLATE, VINYL METHACRYLATE, ALLYL ACRYLATE, ALLYL METHACRYLATE, THE DIVINYL ETHER OF DIETHYLENE GLYCOL, DIALLYL MALEATE, DIALLYL ITACONATE, DIALLYL MALONATE, DIALLYL BENZENE PHOSPHONATE, TRIALLYL PHOSPHATE, TRIALLYL CYANURATE, GLYCERYL TRIMETHACRYLATE; (E) EXPOSING THE MONOMER-SATURATED BULKED YARN TO A FIELD OF HIGH ENERGY RADIATION FOR A TIME SUFFICIENT TO GIVE A TOTAL DOSAGE WITHIN THE RANGE BETWEEN 0.05 AND 50 MEGARADS. THEREBY CROSS-LINKING OF THE MONOMER-POLYMER COMPONENTS THEREOF; AND (F) CONVENTIONALLY WEAVING THE THUS TREATED POLYPROPYLENE YARN INTO A CARPET.

Claim 2

A METHOD FOR PROVIDING A CARPET OF GOOD TUFT RESILIENCE WOVEN FROM FIBER COMPRISING: HOMOPOLYMERS AND COPOLYMERS OF PROPYLENE, WHICH COMPRISES: (A) SPINNING POLYPROPYLENE CONTINUOUS FILAMENTS FROM POLYPROPYLENE RESIN; (B) COMBINING SAID FILAMENTS INTO CONTINUOUS FILAMENT AND STAPLE YARNS; (C) BULKING THE RESLUTING POLYPROPYLENE YARN; (D) IMMERSING THE BULKED YARN IN A BATH OF A POLYFUNCTIONAL MONOMER AT A TEMPERATURE BETWEEN 20* AND 120*C. SELECTED FROM THE GROUP CONSISTING OF DIVINYL BENZENE, THE MONO-, DI-, TRI- AND TETRA-ETHYLENE GLYCOL DIACRYLATS, THE MONO-, DI, TRI-AND TETRA-ETHYLENE GLYCOL DIMETHACRYLATES, VINYL ACRYLATE, VINYL METHACRYLATE, ALLYL ACRYLATE, ALLYL METHACRYLATE, THE DIVINYL ETHER OF DIETHYLENE GLYCOL, DIALLYL MALEATE, DIALLYL ITACONATE, DIALLYL MALONATE, DIALLYL BENZENE PHOSPHONATE, TRIALLYL PHOSPHATE, TRIALLYL CYANURATE, GLYCERYL TRIMETHACRYLATE; (E) EXPOSING THE MONOMER-SATURATED BULKED YARN TO A FIELD OF HIGH ENERGY RADIATION FOR A TIME SUFFICIENT TO GIVE A TOTAL DOSAGE WITHIN THE RANGE BETWEEN 0.05 AND 50 MEGARADS. THEREBY CROSS-LINKING OF THE MONOMER-POLYMER COMPONENTS THEREOF; AND (F) CONVENTIONALLY WEAVING THE THUS TREATED POLYPROPYLENE YARN INTO A CARPET.