US3856554A — Pressure-sensitive carbonless transfer sheet and …

Claim 1

Independent Claim 133 words

A PRESSURE-SENSITIVE CARBONLESS TRANSFER SHEET HAVING A SURFACE SUPPORTING A MULTITUDE OF MICROSCOPIC PRESSURERUPTURABLE CAPSULES CONTAINING A REACTANT SOLUTION COMPRISING A PRECURSOR TAKEN FROM THE CLASS OF DITHIOOXAMIDE AND ITS N,N''DI-SUBSTITUTED DERIVATIVES, AND A SOLVENT AND ALSO SUPPORTING A CO-REACTANT FOR THE REACTANT SOLUTION, WHICH CO-REACTANT COMPRISES NICKEL (II) CHLORIDE, SODIUM RICINOLEATE AND STEARIC ACID, THE REACTANT SOLUTION AND CO-REACTANT BEING ADAPTED, UPON APPLICATION OF A LOCALIZED PRESSURE TO THE SHEET AND CONSEQUENTLY RUPTURE OF THE CAPSULES WHILE SAID SURFACE IS IN INTIMATE CONTACT WITH ANOTHER SURFACE DEVOID OF REACTANT AND CO-REACTANT, TO CAUSE A SUBSTANTIALLY PORTION OF THE CO-REACTANT AND REACTANT SOLUTION TO PHYSILCALLY TRANSFER TO SAID OTHER SURFACE TO CAUSE CHEMICAL REACTIONS TO OCCURS BETWEEN THE PRECURSOR AND CO-REACTANT FOR RAPIDLY PROVIDING A DRY, CHEMICALLY FORMED IMAGE ON SUCH OTHER SURFACE.

Claim 2

Dependent Claim 133 words

A PRESSURE-SENSITIVE CARBONLESS TRANSFER SHEET HAVING A SURFACE SUPPORTING A MULTITUDE OF MICROSCOPIC PRESSURERUPTURABLE CAPSULES CONTAINING A REACTANT SOLUTION COMPRISING A PRECURSOR TAKEN FROM THE CLASS OF DITHIOOXAMIDE AND ITS N,N''DI-SUBSTITUTED DERIVATIVES, AND A SOLVENT AND ALSO SUPPORTING A CO-REACTANT FOR THE REACTANT SOLUTION, WHICH CO-REACTANT COMPRISES NICKEL (II) CHLORIDE, SODIUM RICINOLEATE AND STEARIC ACID, THE REACTANT SOLUTION AND CO-REACTANT BEING ADAPTED, UPON APPLICATION OF A LOCALIZED PRESSURE TO THE SHEET AND CONSEQUENTLY RUPTURE OF THE CAPSULES WHILE SAID SURFACE IS IN INTIMATE CONTACT WITH ANOTHER SURFACE DEVOID OF REACTANT AND CO-REACTANT, TO CAUSE A SUBSTANTIALLY PORTION OF THE CO-REACTANT AND REACTANT SOLUTION TO PHYSILCALLY TRANSFER TO SAID OTHER SURFACE TO CAUSE CHEMICAL REACTIONS TO OCCURS BETWEEN THE PRECURSOR AND CO-REACTANT FOR RAPIDLY PROVIDING A DRY, CHEMICALLY FORMED IMAGE ON SUCH OTHER SURFACE.

Claim 3

Dependent Claim 61 words

A sheet according to claim 1, wherein upon application of such localized pressure to another surface of the sheet opposite the first-mentioned surface, the remainder of the co-reactant and reactant solution will remain in situ and chemically react to provide on the first-mentioned surface a chemically formed mirror image of the image formed by application of pressure to such other surface.

Claim 4

Dependent Claim 58 words

A sheet according to claim 1, wherein the co-reactant comprises, by weight, when dried, about 10 - 30 percent nickel (II) chloride; 15-50 percent sodium ricinoleate; 25-45 percent stearic acid and lithium stearate as a combined total, but for any percentage selected there being more stearic acid by weight than lithium stearate; and 2 - 10 percent anti-oxidant.

Claim 5

Dependent Claim 46 words

A sheet according to claim 1, wherein the co-reactant consists by weight, when dried, of essentially about 21 percent nickel (II) chlorIde; 21 percent sodium ricinoleate; 10 percent lithium stearate; 20 percent stearic acid; 10 percent sodium benzoate; 10 percent zinc resinate; and 8 percent anti-oxidant.

Claim 6

Dependent Claim 38 words

A sheet according to claim 1, wherein the co-reactant consists by weight, when dried, of essentially about 15 percent nickel (II) chloride; 35 percent sodium ricinoleate; 17 percent lithium stearate; 25 percent stearic acid; and 8 percent anti-oxidant.

Claim 7

Dependent Claim 34 words

A sheet according to claim 1, wherein the co-reactant consists by weight, when dried, of essentially about 20 percent nickel (II) chloride; 46 percent sodium ricinoleate; 28 percent stearic acid; and 6 percent anti-oxidant.

Claim 8

Dependent Claim 42 words

A sheet according to claim 1, wherein the co-reactant consists by weight, when dried, of essentially about 25 percent nickel (II) chloride; 31 percent sodium ricinoleate; 13 percent lithium stearate; 19 percent stearic acid; 6 percent sodium benzoate; and 6 percent anti-oxidant.

Claim 9

Dependent Claim 161 words

In a pressure-sensitive recording system, the combination of one member having a substantially flat surface supporting a multitude of microscopic pressure-rupturable capsules containing a reactant solution comprising a precursor taken from the class of dithiooxamide and its N,N''di-substituted derivatives, and the co-reactant comprises nickel (II) chloride, sodium ricinoleate and stearic acid, and another member having a somewhat absorptive surface which is devoid of reactant and co-reactant, the reactant solution and co-reactant being adapted, upon application of a localized pressure to said members and consequent rupture of the capsules while said surfaces are superimposed in intimate contact, to cause at least some of the reactant solution to partly dissolve at least some of the co-reactant and physically transfer from the flat surface to the absorptive surface and be absorbed therein sufficiently to cause the chemical reaction that occurs between precursor and co-reactant to provide in the absorptive surface a chemically formed image that is immediately dry and essentially smudge-free and erasure resistant.

Claim 10

Dependent Claim 161 words

In a pressure-sensitive recording system, the combination of one member having a substantially flat surface supporting a multitude of microscopic pressure-rupturable capsules containing a reactant solution comprising a precursor taken from the class of dithiooxamide and its N,N''di-substituted derivatives, and the co-reactant comprises nickel (II) chloride, sodium ricinoleate and stearic acid, and another member having a somewhat absorptive surface which is devoid of reactant and co-reactant, the reactant solution and co-reactant being adapted, upon application of a localized pressure to said members and consequent rupture of the capsules while said surfaces are superimposed in intimate contact, to cause at least some of the reactant solution to partly dissolve at least some of the co-reactant and physically transfer from the flat surface to the absorptive surface and be absorbed therein sufficiently to cause the chemical reaction that occurs between precursor and co-reactant to provide in the absorptive surface a chemically formed image that is immediately dry and essentially smudge-free and erasure resistant.

Claim 11

Dependent Claim 61 words

The system according to claim 8, wherein said members are flat sheets that are superimposed with said flat surface in face-down contact with said absorptive surface to cause the image formed in said absorptive surface to correspond identically to the pattern of applied localized pressure when such pressure is applied to a surface of said one member opposite said flat surface.

Claim 12

Dependent Claim 86 words

The system according to claim 8, wherein the localized pressure is applied to said members by imprinting a right-readable image on a different surface of said one member opposite the flat surface, and the reactant solution and co-reactant react chemically to provide on said flat surface a mirror image of the right-readable image, the mirror image being provided concurrently with and as a part of the same chemical reaction that provides the image in the absorptive surface, the image in the absorptive surface being right readable.

Claim 13

Dependent Claim 41 words

A system according to claim 8, wherein the co-reactant comprises, by weight, when dried, about 10-30 percent nickel (II) chloride; 15-50 percent sodium ricinoleate; 25-45 percent stearic acid and lithium stearate with a preponderance of stearic acid; and 2-10 percent anti-oxidant.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-12-23	1978-06-24	1978-12-24	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-12-23	1982-06-24	1982-12-24	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-12-23	1986-06-24	1986-12-24	$7700.00	Window Closed / Lapsed

Pressure-sensitive carbonless transfer sheet and method for providing a chemically formed image on an untreated substrate

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