Printer's roll comprising a polyurethane and method for producing same

Claim 1

A METHOD OF PRODUCING A PRINTER''S INK ROLL COMPRISING (1) CENTERING A SPINDLE WITHIN A PRINTER''S INK ROLL MOLD; (2) FILLING THE MOLD WITH A FLUID POLYESTE URETHANE, SAID FLUID POLYESTER URETHANE COMPRISING A REACTION MIXTURE COMPRISING .6 TO 1 MOL OF A DIISOCYANATE SELECTED FROM THE CLASS CONSISTING OF TOLYLENE DIISOCYANATE, TOLIDINE DIISOCYANATE AND METHYLENE BIS (4PHENYL ISOCYANATE) WITH 1 MOL OF A POLYESTER HAVING A MOLECULAR WEIGHT OF ABOUT 1500 TO 5000, AND ACID NO LESS THAN 5 AND A HYDROXYL NUMBER OF 40-70, SAID POLYESTER COMPRISING THE REACTION PRODUCT OF A DICARBOXYLIC ACID HAVING FROM 4 TO 10 CARBON ATOMS WITH A MIXTURE OF POLYOLS COMPRISING AT LEAST 95% BY WEIGHT OF A GLYCOL SELECTED FROMTHE CLASS CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL AND PROPLYENE GLYCOL AND 1 TO 5% BY WEIGHT OF A HYDROXYLATED MONOMER SELECTED FROM THE CLASS CONSISTING OF TRIMETHYLOL ETHANE, TRIMETHYLOL PROPANE GLYCEROL, PENTAERYTHRITOL, AND 1,2,6-BEXANE TRIOL; (3) CURING THE FLUID POLYURETHANE TO OBTAIN A CURED PRODUCT HAVING A SHORE A HARDNESS OF AT LEAST 10 AND NO MORE THAN ABOUT 30, AND (4) MACHINING THE CURED PRODUCT TO OBTAIN A PRECISION FINISH ON THE SURFACE OF THE ROLL.

Claim 2

A METHOD OF PRODUCING A PRINTER''S INK ROLL COMPRISING (1) CENTERING A SPINDLE WITHIN A PRINTER''S INK ROLL MOLD; (2) FILLING THE MOLD WITH A FLUID POLYESTE URETHANE, SAID FLUID POLYESTER URETHANE COMPRISING A REACTION MIXTURE COMPRISING .6 TO 1 MOL OF A DIISOCYANATE SELECTED FROM THE CLASS CONSISTING OF TOLYLENE DIISOCYANATE, TOLIDINE DIISOCYANATE AND METHYLENE BIS (4PHENYL ISOCYANATE) WITH 1 MOL OF A POLYESTER HAVING A MOLECULAR WEIGHT OF ABOUT 1500 TO 5000, AND ACID NO LESS THAN 5 AND A HYDROXYL NUMBER OF 40-70, SAID POLYESTER COMPRISING THE REACTION PRODUCT OF A DICARBOXYLIC ACID HAVING FROM 4 TO 10 CARBON ATOMS WITH A MIXTURE OF POLYOLS COMPRISING AT LEAST 95% BY WEIGHT OF A GLYCOL SELECTED FROMTHE CLASS CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL AND PROPLYENE GLYCOL AND 1 TO 5% BY WEIGHT OF A HYDROXYLATED MONOMER SELECTED FROM THE CLASS CONSISTING OF TRIMETHYLOL ETHANE, TRIMETHYLOL PROPANE GLYCEROL, PENTAERYTHRITOL, AND 1,2,6-BEXANE TRIOL; (3) CURING THE FLUID POLYURETHANE TO OBTAIN A CURED PRODUCT HAVING A SHORE A HARDNESS OF AT LEAST 10 AND NO MORE THAN ABOUT 30, AND (4) MACHINING THE CURED PRODUCT TO OBTAIN A PRECISION FINISH ON THE SURFACE OF THE ROLL.