Pressure responsive record materials
First Claim
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1. PRESSURE-SENSITIVE RECORD MATERIAL CONSISTING OF A SHEET OF PAPER ON A SURFACE OF WHICH IS A DRY COATING INCLUDING, IN CONTACT WITH EACH OTHER, MICROSCOPIC OILCONTAINING PRESSURE-RUPTURABLE CAPSULES OF DENSE, OILIMPERMEABLE GELLED HYDROPHILIC-COLLOID MATERIAL, THE WALLS OF EACH CAPSULE BEING OIL-IMPERVIOUS AND CHARACTERIZED BY HAVING BEEN DEPOSITED BY COACERVATION FORCES EVENLY AROUND A NUCLEUS OF OIL, AND MICROSCOPIC PARTICLES OF SOLID MATERIAL, THE OIL IN THE CAPSULES BEING WATER-IMMISCIBLE AND REACTANT ON CONTACT WITH THE PARTICLES OF SOLID MATERIAL TO PRODUCE A DISTINCTIVE COLOR, WHEREBY WRITING AND MARKING PRESSURES, ALONE, ON SAID RECORD MATERIAL PRODUCE DISTINCTIVELY COLORED MARKS AT POINTS OF PRESSURE.
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1 Claim
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1. PRESSURE-SENSITIVE RECORD MATERIAL CONSISTING OF A SHEET OF PAPER ON A SURFACE OF WHICH IS A DRY COATING INCLUDING, IN CONTACT WITH EACH OTHER, MICROSCOPIC OILCONTAINING PRESSURE-RUPTURABLE CAPSULES OF DENSE, OILIMPERMEABLE GELLED HYDROPHILIC-COLLOID MATERIAL, THE WALLS OF EACH CAPSULE BEING OIL-IMPERVIOUS AND CHARACTERIZED BY HAVING BEEN DEPOSITED BY COACERVATION FORCES EVENLY AROUND A NUCLEUS OF OIL, AND MICROSCOPIC PARTICLES OF SOLID MATERIAL, THE OIL IN THE CAPSULES BEING WATER-IMMISCIBLE AND REACTANT ON CONTACT WITH THE PARTICLES OF SOLID MATERIAL TO PRODUCE A DISTINCTIVE COLOR, WHEREBY WRITING AND MARKING PRESSURES, ALONE, ON SAID RECORD MATERIAL PRODUCE DISTINCTIVELY COLORED MARKS AT POINTS OF PRESSURE.
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Current AssigneeBarrett K. Green, Lowell Schleicher
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Original AssigneeBarrett K. Green, Lowell Schleicher
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InventorsGreen, Barrett K., Schleicher, Lowell
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Application NumberUS03/365,292Time in Patent Office924 DaysField of SearchUS Class Current503/226CPC Class CodesB01J 13/10 Complex coacervation, i.e. ...B41M 5/165 characterised by the use of...Y10S 428/914 Transfer or decalcomaniaY10T 428/2984 Microcapsule with fluid cor...
