Multipurpose duplicating master

Claim 2

A DUPLICATING MASTER ADAPTED FOR USE IN DUPLICATING PROCESSES OF EITHER THE OFFSET OR THE DIFFERENTIAL LIGHT TRANSMISSIIN-ABSORPTION TYPE, COMPRISING A BASE SHEET MATERIAL OF PARCHMENTIZED PAPAER HAVING AT LEAST ONE SURFACE THEREOF UNIFORMLY COATAED WITH A MATERIAL COMPRISING, PER 100 PARTS OF THE STATED INGREDIENTS, POLYVINYL ALCOHOL (PVA) AND IDALDEHYDE STARCH (CAS) IN RELATIVE PROPORTIONS OF 50 TO 97.6 PARTS OF PVA TO 50 TO 2.4 PARTS OF DAS, THE STARTING PVA BEING CHARACTERIZED BY HAVING AT LEAST ABOUT NINETY-FIVE (95) PERCENT OF ITS EXISTING HYDROXYL GROUPS PRESENT AS FREE UNESTERIFIED HYDROXYL GROUPS, THE STARING DAS BEING CHARACTERIZED BY CONTAINING AT LEAST ABOUT FIFTY (50) PERCENT OF STARCH 2,3-DIALDEHYDE, THE SAID COATING BEING SUBSTANTIALLY TRANSPARENT WHEN SET ON THE SURFACE OF THE BASE SHEET MATERIAL EMPOLYED, THE COATED SHEET MATERIAL HAVING AT LEAST A FIVE (5) POUND PER INCH (MACHINE DIRECTION) WET TENSILE STRENGTH AS TESTED ACCORDING TO TAPPI TEST T 456 M-49, A MINIMUM DEGREE OF ULTRAVIOLET TRANSMISSION OF AT LEAST TWENTY-VIE (25) PERDENT AS COMPARED WITH AIR USING AN ULTRAVIOLET BEAM HAVING A PEAK AT ABOUT 3650 ANGSTROM UNITS, AS TRANSMITTED THROUGH A CORNING FILTER NO. 5860 AND DETERMINED WITH A PHOTOELECTRIC TRANSMISSION DENSOMETER (PHOTOVOLT NO. 5012), AND THE TOTAL SOLIDS COATAED ON THE BASE SHEET MATERIAL BEING IN THE RANGE OF 0.1 TO 30 POUNDS PER 3,000 SQUARE FOOT REAM PER SIDE OF BASE SHEET MATERIAL.

Claim 3

A DUPLICATING MASTER ADAPTED FOR USE IN DUPLILCATING PROCESSES OF EITHER THE OFFSET OR THE DIFFERENTIAL LIGHT TRANSMISSION-ABSORPTION TYPE, COMPRISING A SHEET MATERIAL OF CLAIM 1 HAVING INDICIA UPON THE COATED SURFACE THERE-

Claim 4

A DUPLICATING MASTER ADAPTED FOR USE INDUPLICATING PROCESSES OF EITHER THE OFFSET OR THE DIFFERENTIAL LIGHT TRANSMISSION-ABSORPTION TYPE, COMPRISING A BASE SHEET MATERIAL HAVING AT LEAST ONE SURFACE THEREOF UNIFORMLY COATED WITH A MATERIAL COPRISING, PER 100 PARTS OF COATING COMPOSITION, POLYVINYL ALCOHOL (PVA) AND DIALDEHYDE STARCH (DAS) IN RELATIVE PROPORTIONS OF 0.1 TO 97.6 PARTS OF PVA TO 0.1 TO 72 PARTS OF DAS, THE STARTING PVA BEING CHARACTERIZED BY HAVING AT LEAST ABOUT NINETY-FIVE (95) PERENT OF ITS EXISITING HYDROXYL GROUPS PRESENT AS FREE UNESTERIFIED HYDROXYL GROUPS, THE STARTING DAS BEING CHARACTERIZED BY CONTAINING AT LEAST ABOUT FIFTY (50) PERCENT OF STARCH 2,3-DIALDEHYDE, SAID COATING MATERIAL ADDITIONALLY CONTAINING ABOUT 0.1 TO ABOUT 95 PARTS PER 100 PARTS OF COATING COMPOSITION OF A PARTICULAR MINERAL CONSISTING ESSENTIALLY OF SILICON DIOXIDE HAVING AN AVERAGE PARTICLE SIZE NOT GREATER THAN TWO (2) MICRONS AND REFRACTIVE INDEX (NC20C$) NOT GREATER THAN 1.6, THE SAID COATING BEING SUBSTANTIALLY TRANSPARENT WHEN SET ON THE SURFACE OF THE BASE SHEET MATERIAL EMPOLYED, THE COATED SHEET MATERIAL HAVING AT LEAST A FIVE (5) POUND PER INCH (MACHINE DIRECTION) WET TENSILE STRENGTH AS TESTED ACCORDING TO TAPPI TEST T 456 M-19, A MINIMUM DEGREE OF ULTRAVIOLET TRANSMISSION OF AT LEAST TWENTY-FIVE (25) PERCENT AS COMPARED WITH AIR USING AN ULTRAVIOLET BEAM HAVING A PEAK AT ABOUT 3650 ANGSTROM UNITS, AS TRANSMITTED THROUGH A CORNING FILTER NO. 5860 AND DETERMINED WITH A PHOTOELECTRIC TRANSMISSION DENSOMETER (PHOTOVOLE NO. 5012), AND THE TOTAL SOLIDS COATED ON THE BASE SHEET MATERIAL BEING IN THE RANGE OF 0.1 TO 30 POUNDS PER 3,000 SQUARE FOOT REAM PER SIDE OF BASE SHEET MATERIAL.

Claim 5

A DUPLICATING MASTER ADAPTED FOR USE INDUPLICATING PROCESSES OF EITHER THE OFFSET OR THE DIFFERENTIAL LIGHT TRANSMISSION-ABSORPTION TYPE, COMPRISING A BASE SHEET MATERIAL HAVING AT LEAST ONE SURFACE THEREOF UNIFORMLY COATED WITH A MATERIAL COPRISING, PER 100 PARTS OF COATING COMPOSITION, POLYVINYL ALCOHOL (PVA) AND DIALDEHYDE STARCH (DAS) IN RELATIVE PROPORTIONS OF 0.1 TO 97.6 PARTS OF PVA TO 0.1 TO 72 PARTS OF DAS, THE STARTING PVA BEING CHARACTERIZED BY HAVING AT LEAST ABOUT NINETY-FIVE (95) PERENT OF ITS EXISITING HYDROXYL GROUPS PRESENT AS FREE UNESTERIFIED HYDROXYL GROUPS, THE STARTING DAS BEING CHARACTERIZED BY CONTAINING AT LEAST ABOUT FIFTY (50) PERCENT OF STARCH 2,3-DIALDEHYDE, SAID COATING MATERIAL ADDITIONALLY CONTAINING ABOUT 0.1 TO ABOUT 95 PARTS PER 100 PARTS OF COATING COMPOSITION OF A PARTICULAR MINERAL CONSISTING ESSENTIALLY OF SILICON DIOXIDE HAVING AN AVERAGE PARTICLE SIZE NOT GREATER THAN TWO (2) MICRONS AND REFRACTIVE INDEX (NC20C$) NOT GREATER THAN 1.6, THE SAID COATING BEING SUBSTANTIALLY TRANSPARENT WHEN SET ON THE SURFACE OF THE BASE SHEET MATERIAL EMPOLYED, THE COATED SHEET MATERIAL HAVING AT LEAST A FIVE (5) POUND PER INCH (MACHINE DIRECTION) WET TENSILE STRENGTH AS TESTED ACCORDING TO TAPPI TEST T 456 M-19, A MINIMUM DEGREE OF ULTRAVIOLET TRANSMISSION OF AT LEAST TWENTY-FIVE (25) PERCENT AS COMPARED WITH AIR USING AN ULTRAVIOLET BEAM HAVING A PEAK AT ABOUT 3650 ANGSTROM UNITS, AS TRANSMITTED THROUGH A CORNING FILTER NO. 5860 AND DETERMINED WITH A PHOTOELECTRIC TRANSMISSION DENSOMETER (PHOTOVOLE NO. 5012), AND THE TOTAL SOLIDS COATED ON THE BASE SHEET MATERIAL BEING IN THE RANGE OF 0.1 TO 30 POUNDS PER 3,000 SQUARE FOOT REAM PER SIDE OF BASE SHEET MATERIAL.