New! View global litigation for patent families

US3627581A - Pressure-sensitive record material - Google Patents

Pressure-sensitive record material Download PDF

Info

Publication number
US3627581A
US3627581A US3627581DA US3627581A US 3627581 A US3627581 A US 3627581A US 3627581D A US3627581D A US 3627581DA US 3627581 A US3627581 A US 3627581A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
material
record
isopropylbiphenyl
percent
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Paul S Phillips Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Appvion Inc
NCR Corp
Original Assignee
NCR Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/165Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients
    • B41M5/1655Solvents
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2984Microcapsule with fluid core [includes liposome]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2984Microcapsule with fluid core [includes liposome]
    • Y10T428/2985Solid-walled microcapsule from synthetic polymer

Abstract

Record material comprising paper sheet material coated with liquid-containing microcapsules wherein the liquid contents comprise isopropylbiphenyl and no halogenated hydrocarbon liquid. Said liquid is associated on the record material with at least two color-producing reactants, at least one of which is soluble in said liquid. The encapsulated liquid is associated with the reactants by either being in close proximity to both reactants or by having one of the reactants dissolved therein and being in close proximity to the other. Of the color-producing reactants, one is a chromogenic dye-precursor and one is a coreactant material capable of developing the color of the chromogenic dyeprecursor when the two reactants are brought into reaction contact by rupture of the capsule walls that contain said liquid.

Description

United States Patent [111 3,627,581

[72] Inventor Paul S. Phillips, .Ir- 3,481,759 12/1969 Ostlie l 17/36.2 Dayton, Ohio 3,488,207 1/1970 Vassiliades. 1 17/36.2 [21] Appl. No. 82,198 3,540,913 11/1970 Lin 117/362 [22] Filed Oct. 19, 1970 [45] Patented Dec. 14, 1971 [73] Assignee The National Cash Register Company Primary Examiner-Murray Katz Attorneys- E. Frank McKinney and Edward McC. Roberts Dayton, Ohio ABSTRACT: Record material comprising paper sheet materi- [54] PRESSURESENSITIVE RECORD MATERIAL a] coated with liquid-containing microcapsules wherein the 14 Claims No Drawings tquld contents comprise lsopr opylblphenyl and no halogenated hydrocarbon liquid. Said llqLlld IS associated on [52] U.S.C1 117/362, the record material with at least two color-producing reac- 1 17/156, 252/316, 106/137 tants, at least one of which is soluble in said liquid. The encap- [51] Int. Cl. B4lm 5/16 sulated liquid is associated with the reactants by either being [50] Field of Search 117/362, in close proximity to both reactants or by having one of the 36.8, 36.9 reactants dissolved therein and being in close proximity to the other. Of the color-producing reactants, one is a chromogenic [56] Ree'ences cued dye-precursor and one is a coreactant material capable of UNITED STATES PATENTS developing the color of the chromogenic dye-precursor when 3,432,327 3/1969 Kan et a1 1 17/36.2 the feaciams are brought into reaction Contact by rupture of the capsule walls that contain said liquid.

PRESSURE-SENSITIVE RECORD MATERIAL There is provided by this invention record material, comprising paper sheets coated with isolated liquid droplets, comprising isopropylbiphenyl and no halogenated hydrocarbon liquid. Said isolated liquid droplets are associated on the record material with at least two color-producing reactants, at least one of which is soluble in said liquid. The liquid is associated with the reactants by either being in close proximity to both reactants or by having one of the reactants dissolved therein and being in close proximity to the other. Of the colorproducing reactants, one is a chromogenic dye-precursor and one is a coreactant material capable of developing the color of the chromogenic dye-precursor when the two reactants are brought into reaction contact by rupture of the isolating medium. lsolation of the liquid droplets is preferably accomplished by encapsulation of the droplets with polymeric film material.

In the art of making pressure-sensitive record material of the type described which includes liquid containing microcapsules, successful commercial embodiments have made use of Crystal Violet Lactone (hereinafter called CVL) as the chromogenic dye-precursor material, an acidic coreactant material such as attapulgite clay or an oil-soluble, para-substitued-phenoLaldehyde novolak resin, and a liquid solvent that is at least in part a halogenated aromatic liquid, particularly mixtures of chlorinated biphenyls. Halogenated aromatic liquids have low vapor pressure and good solvent power and are readily retained by gelatin films (the most widely used capsular wall material). The halogenated aromatics have therefore served well as the solvent in pressure-sensitive record material systems of the type described. However, it has now been found that the fade rate of so-made CVL prints on exposure to air and light is increased by the presence of halogencontaining solvents. A search for nonhalogenated solvents, having the advantages of chlorinated biphenyls without the disadvantage of accelerating print-fade has produced the aromatic solvent systems of this invention which include isopropylbiphenyl.

Amylbiphenyl, with impurities and isomer ratios unspecified, was disclosed as a vehicle for making colored pigment suspensions for use as an encapsulated marking liquid in a coated record sheet by Macauley in U.S. Pat. 3,016,308 which issued Jan. 9, 1962. Macauley in the same patent further disclosed a 111:1 mixture of chlorinated biphenylamylbiphenyl-amylnaphthalene as the solvent for methylviolet butyl ether, again for use as an encapsulated marking liquid in a coated record sheet. Amylbiphenyl as part of an encapsulated dye-precursor solvent system which does not also include halogenated aromatics has not, as far as is known, been taught in the art. However, amylbiphenyl was tested in the hope of its meeting the objects of this invention. Amylbiphenyl has not been found satisfactory in the record systems of this invention partly because of its low solubilizing power but mainly because of its perfonnance in use. Prints made on a standard commercial novolak-sensitized receiving sheet with a 2:1 amylbiphenyl-saturated hydrocarbon oil solution of CVL were much less intense than similarly made prints using a 2:1 chlorinated-biphenyl-saturated hydrocarbon oil solution of CVL. Furthermore, the CVL-in-amylbiphenyl prints faded even more rapidly and completely than the known-art CVL- in-chlorinated-biphenyl prints. The failure of amylbiphenyl to meet the objects of this invention and improve on the chlorinated aromatic solvents of the known art made even more surprising the advantageous performance of isopropylbiphenyl, the use of which is set out herein.

By isoproplybiphenyl is meant a compound or a mixture of compounds of the structure:

CH(CH3)2 The isopropyl group may be attached to the benzene ring at the ortho, meta or para positions. Synthetic methods commonly used produce a mixture of at least two of the three possible isopropylbiphenyls. Of particular use in this invention is the mixture wherein meta-isopropylbiphenyl and paraisopropylbiphenyl are the predominant isomers. These two isomers appear to perform in the record material systems of the invention equally well and whether alone or in combination to perform better than ortho-isopropylbiphenyl.

lsopropylbiphenyl has been found to give better print intensities and better fade resistance than higher alkylated biphenyls such as butylbiphenyl, amylbiphenyl, hexylbiphenyl, decylbiphenyl, diisopropylbiphenyl and triisopropylbiphenyl. Increasing alkyl content in the alkylated biphenyls also leads to generally poorer solubilizing properties at least when CVL is the chromogen to be dissolved. However, a certain amount of higher alkylated biphenyls as impurities in the isopropylbiphenyl can be tolerated. When the impurities are polyisopropylbiphenyls, that is generally diisopropylbiphenyl with trace amounts of triisopropylbiphenyl, no more than about 55 percent, by weight, of the total biaryl content should be such higher alkylated species. Preferably no more than about 25 to 30 percent of the total biaryl content is polysiopropylbiphenyl. Unalkylated biphenyl, that is biphenyl itself, can also be tolerated as an impurity in the isopropylbiphenyl. Biphenyl as an impurity does not noticeably hurt the performance of isopropylbiphenyl in the record materials of this invention, but when biphenyl makes up more than about 10 percent of the total biaryl content the biphenyl odor generally makes such record materials commercially unacceptable. By total biaryl content" is meant the amount of isopropylbiphenyl present, together with its impurities,

polyisopropylbiphenyl and biphenyl. By polyisopropylbiphenyl is meant biphenyl having two or more isopropyl s i ssvb itqts ths q Nonhalogenated diluent oils may be added to the isopropylbiphenyl without adversely affecting the performance of the record systems made therewith. High-boiling aliphatic hydrocarbons and C, -C,,,-alkylbenzenes have been used successfully as isopropylbiphenyl diluents. Since these diluents are generally cheaper than isopropylbiphenyl, their use is in the interest of economy. Solubility of the chosen colorless, chromogenic dye-precursor material in the chosen diluent dictates the maximum amount of such diluent which can be used. If the isopropylbiphenyl is to be diluted with other oils, the diluted isopropylbiphenyl should be capable of dissolving at least one percent and preferably 1.5 percent or more of the chosen dye-precursor. When CVL is the chosen dye-precursor, the preferred diluents are saturated aliphatic hydrocarbon oils (with a distillation range in the range of 320 to 550 F.), which may be added to isopropylbiphenyl to make up about one-third of the total weight of the CVL solvent, and C,,C, -alkylbenzene which may be used to the extent of two-thirds of the total weight of said solvent.

Of course, in addition to the preferred diluent hydrocarbon oils discussed above, many oils known to the art as useful internal phase solvents, may be used as a diluent herein for the isopropylbiphenyl provided they are not halogenated, are at least partially miscible with isopropylbiphenyl so as to give a single phase in the proportions used, and are not chemically reactive with isopropylbiphenyl or the other components of the marking liquid. For instance, low molecular weight aromatic hydrocarbons such as xylene and toluene, organic acid esters such as fatty acid esters and phthalic acid esters, phosphate esters such as dibutylphosphate, dioctyl phosphate and dicresylphosphate, and ethers such as diphenyl oxide are alleligible foruse as diluent oils. 7 V

An unexpected advantage of the record material of this invention (in addition to the previously recited increase in fade-' resistance) is that color-production efficiency is also enhanced over the known-art systems which include chlorinated biphenyls. This allows the use of less marking liquid per unit area to produce the same amount of color. The color-production efficiency of record material coated with microcapsules having an internal phase consisting of 1.7 percent CVL dissolved in a 2:1 mixture of isopropylbiphenyl and saturated hydrocarbon oil is 16 percent greater than the colorproduction efficiency of record material coated with microcapsules having an internal phase consisting of 1.5 percent CVL dissolved in a 2:1 mixture of a chlorinated biphenyl (of 42 percent chlorine content) and saturated hydrocarbon oil. This increased efficiency reprewnts a saving in rawmaterial costs as well as reduced coating weights on the finished product.

lsopropylbiphenyl solvent materials of the following compositions were tested and found to represent an improvement over chlorinated biphenyls:

TABLE I Percent composition (by weight) Sample Qrtho- Meta- Para- Polyisoprodesignation lsomer isomer isomer pylbiphenyl Biphenyl 65. 8 31. 4 0. 70 64. 8 34. 1 0. 10 21. 8 40. 1 1i. 6 0. 10 50. 5 29. 6 23. 6 0. 40 24. 5 I4. 5 54. 7 8. 70 23. 4 16.8 41. 5 14. 20 30. 6 17. 6 48. 9 0. 40 46.4 28. 3 24. 3 1. 10 21. 5 13. l 54. 2 8. 8O 46. 3 24. 9 21. 4 9. 50' 41. 0 23. 4 39. 8 0.70 46. 0 25. 1 22. 0 8. 80 49. 6 29. 1 23. 5 0. 60

The preferred composition for use in this invention is approximately 50 percent meta-isopropylbiphenyl, 30 percent para-isopropylbiphenyl, 25 percent polyisopropylbiphenyl, 0.5 percent biphenyl. This preferred composition is best represented by Samples D" and N," above.

Samples of isopropylbiphenyl having about 75 percent polyisopropylbiphenyl impurity associated with about 25 percent isopropylbiphenyl (a mixture of meta and para isomers) were found, when mixed 2:1 with a saturated hydrocarbon oil and used as the internal phase solvent for CVL, to give slightly less intense prints on phenolicresin sensitized paper than 2:1 chlorinated-biphenyksaturatcd hydrocarbon oil solutions of CVL did and to show no appreciable improvement in fade resistance.

Satisfactory isopropylbiphenyl for use herein may be obtained commercially or may be synthesized by Friedel-Crafts alltylation of biphenyl, a study of which reaction is reported in industrial and Engineering Chemistry Product Research and Development, 8 239-241 (1969), by Duane B. Priddy.

Dye-precursor materials in addition to CVL which may be dissolved in isopropylbiphenyl for encapsulation purposes include any colorless, chromogenic dye-precursor materials such as those disclosed in the U.S. application of Robert E. Miller and Paul S. Phillips, Jr., Ser. No. 44, 805, filed June 9, 1970.

The same Miller-Phillips application also discloses those phenol-aldehyde resins eligible for use as coreactant materials to develop the color of the dye-precursor materials. In general, the preferred resins are oil-soluble para-substitutedphenol-formaldehyde novolak resins.

Other useful phenolic resins are disclosed in U.S. application, Ser. No. 830,921, filed May 26, 1969 by Robert E. Miller and Bruce W. Brockett.

Capsule-wall materials and capsule manufacture are not critical to this invention. Suitable capsules may be made according to the procedures taught in U.S. Pat. Nos. 2,800,457 July 23, 1957), 2,800,458 (July 23, 1957) which became Re. 24,899 (Nov. 29, 1960) and 3,041,289 June 26, 1962). Other methods of isolating the marking droplets are also applicable here, such as entrapment of the droplets in a dried emulsion film.

annn

'dicated.

EXAMPLE 1 Encapsulation of CVL-isopropylbiphenyl Solution-A solution of CVL, 1.7 percent, in isopropylbiphenyl, Sample D"of Table l, was chosen for use as the internal phase of the capsules. The following formulation was emulsified in a Waring Blendor" at 55 C. to give internal phase droplets of 4 microns diameter:

150 grams of internal phase 150 grams of 10 percent gelatin at pH 6.5

62 grams of deionized water. Coacervation was accomplished by addition to the above emulsion, under continued agitation at 55 C., of grams of 10 percent gum arabic solution, 10 grams of 5 percent PVM/MA, po1y(vinyl methyl ether/maleic anhydride) and 600 grams of deionized water. With continued agitation and temperature maintenance, the mixture was treated with sufficient 20 percent sodium hydroxide solution to adjust the pH to 9.0 and then with 12.5 milliliters of 14 percent acetic acid, dropwise. The mixture was then cooled slowly, with continued agitation, to 12 C. and treated with 7.5 milliliters of 25 percent glutaraldehyde. After 4 hours of stirring, 12.0 milliliters of basic 5 percent PVM/MA (pH 9.0) is added, dropwise, to the mixture which is then stirred for an additional 2.5 hours while it gradually warms, up to about room temperature. The pH of the mixture, which is now a suspension of microcapsules, was finally adjusted to 9.5 with 20 percent sodium hydroxide. The microcapsulcs may be used as is, as an aqueous suspension or they may be isolated by filtration and airdried.

EXAMPLE 2 Encapsulation of CVL-isopropylbiphenyl-hydrocarbon oil. According to the procedure of Example 1, microcapsules were made wherein a 2:1 mixture of isopropylbiphenyl and a saturated hydrocarbon oil (distillation range 370-500 F.) was substituted for the isopropylbiphenyl of that example.

EXAMPLE 3 Encapsulation of CVL-isopropylbiphenyl-alkylbenzene.According to the procedure of example 1, microcapsules were made wherein a 1:2 mixture of isopropylbiphenyl and a mono-C to C -alkylbenzene was substituted for the isopropylbiphenyl of that example.

EXAMPLE 4 Encapsulation of phenolic resin solution.-Gcnerally follow ing the method of example 1, a 10 percent solution of paraphenylphenolformaldchyde novolak resin in a 2:1 mixture of isopropylbiphenyl and xylene was encapsulated. The initial emulsion consisted of 180 grams of internal phase, 191 grams of 11 percent gelatin at pH 4.3 and 15.8 grams of deionized water. Coacervation was accomplished by the addition of 127 grams of 1 1 percent gum arabic solution, grams of 5 percent PVM/MA and 817 grams of deionized water. In the final stages, 21 milliliters of 14 percent acetic acid, 10 milliliters of 25 percent glutaraldehyde, and 20 milliliters of basic 5 percent lVM/MA were added instead of the amounts specified in example 1. The final stirring times were also changed: 16 hours following the glutaraldehyde addition and one hour following the final basic PVM/MA addition. The final adjustment of the pH to 9.5 was omitted.

EXAMPLE 5 Capsule-Coated Record Material Sheets.--An aqueous coating slurry of the following composition was made up by stir- Water Paper sheets were coated with the above slurry with a No. Mayer rod to give a dried coating weight of about 3.5 pounds per ream (500 sheets, measuring 25x38 inches).

Coatings made with the capsules of examples I, 2 or 3 gave record material sheets that yielded intense blue marks when marked on against acid-sensitized receiving sheets. The test receiving sheets were standard commercial receiving sheets sensitized according to the teaching of the previously cited Miller-Brockett application. The so-produced marks were more intense and more fade resistant (when exposed to light and air) than similar marks made with coated sheets having 2:1 chlorinated biphenyl-hydrocarbon oil as the capsular internal phase solvent for the CVL.

Similar results were observed when the coated sheets bearing the capsules of example 4 were used as the transfer sheet against a facing receiving sheet that had been sensitized by being dipped in an acetone solution of a colorless, chromogenic, dye-precursor and dried. Among the colorless, chromogenic, dye-precursor materials used in this test were CVL, Malachite Green Lactone, N-(2,5-dichlorophenyl) leucauramine, N-benzoylauramine, Methyl Red, 4- aminoazobenzene, 8-methoxybenzoindolinospiropyran and Rhodamine B Lactam.

What is claimed is:

1. Record sheet material comprising isolated droplets of an oil solution of a color-producing reactant material, selected from the group consisting of base-reacting colorless chromogenic dye-precursor materials and acid-reacting phenol-formaldehyde novolak resins capable of producing color in said dye-precursors when brought into reactive contact therewith, wherein said oil is a halogen-free oil comprising biaryl material selected from the group consisting of biphenyl. isopropylbiphenyl and polyisopropylbiphenyl with the requirement that of the total biaryl content at least 30 percent must be isopropylbiphenyl, not more than 55 percent may be polyisopropylbiphenyl, and not more than 15 percent may be biphenyl.

2. The record sheet material of claim I wherein the isopropylbiphenyl is a mixture of the isomers, meta-isopropylbipheny] and para-isopropylbiphenyl.

3. The record sheet material of claim 2 wherein the metapara isomer ratio is about 5:3.

4. The record sheet material of claim 1 wherein the oil further comprises a high-boiling saturated aliphatic hydrocarbon oil.

5. The record sheet material of claim 4 wherein the biarylsaturated aliphatic hydrocarbon oil ration is about 2:1.

6. The record sheet material of claim 4 wherein the saturated hydrocarbon oil has a distillation range in the range of 320 to 550 F.

7. The record sheet material of claim 1 wherein the oil further comprises mono-C to C, -,-alkylbenzene.

8. The record sheet material of claim 7 wherein the alkylbenzene is mono-C to C -alkylbenzene.

9. The record sheet material of claim 7 wherein the biarylalkylbenzene ratio is in the range 2:1 to 1:2.

10. The record sheet material of claim 1 wherein the colorproducing reactant material is Crystal Violet Lactone.

11. The record sheet material of claim 1 wherein the colorproducing reactant material is para-substituted-phenol novolak resin.

12. The record sheet material of claim 11 wherein the novolak resin is para-phenylphenol-formaldehyde resin.

13. The record sheet material of claim 1 wherein the total biaryl content consists of about percent of a mixture metaisopropylbiphenyl and para-isopropylbiphenyl, about 20 percent of polyisopropylbiphenyl, and about l percent biphenyl.

14. The record sheet material of claim 1 wherein the isopropylbiphenyl is predominantly meta-isopropylbiphenal.

I l l t l UNITED STATES PATENT GFFICE CERTIFICATE OF CORRECTTUN Patent N 3 Dated December 14:,

Inventor-( PAUL S. PHILLIPS, JR.

It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 6, line 32: "paura-substicuted phenol should be -parasub stituted-phenol-form aldehyde Column 6, line 41: "meta-isopropylbiphenal" should be --meta-isopropy1bipheny1--.

' Signed and sealed this 13th day of March 1973.

(SEAL) Attest:

EDWARD M.FLETCHER,JR. I ROBERT GOTTSCHALK Attesting Officer Commissioner of Patents UNITED STATES PATENT OFFICE CERTIFICATE OF Patent NO- 3, Dat d December 14;,

It is certified that error appears in the above-identified patent and that said Letters Patent: are hereby corrected as shown below:

Column 6, line 32: "para-substituted-phenol" should be -parasub stituted-phenol-form aldehyde Column 6, line 41: "meta-isopropylbiphenal" should be -metaisopropy1bipheny1-.

Signed and sealed this 13th day of March 1973.

(SEAL) Attest:

EDWARD M.FLETCHER,JR. ROBERT GOTTSCHALK Attesting Officer Commissioner of Patents

Claims (13)

  1. 2. The record sheet material of claim 1 wherein the isopropylbiphenyl is a mixture of the isomers, meta-isopropylbiphenyl and para-isopropylbiphenyl.
  2. 3. The record sheet material of claim 2 wherein the meta-para isomer ratio is about 5:3.
  3. 4. The record sheet material of claim 1 wherein the oil further comprises a high-boiling saturated aliphatic hydrocarbon oil.
  4. 5. The record sheet material of claim 4 wherein the biarylsaturated aliphatic hydrocarbon oil ratio is about 2:1.
  5. 6. The record sheet material of claim 4 wherein the saturated hydrocarbon oil has a distillation range in the range of 320* to 550* Fahrenheit.
  6. 7. The record sheet material of claim 1 wherein the oil further comprises mono-C10 to C15-alkylbenzene.
  7. 8. The record sheet material of claim 7 wherein the alkylbenzene is mono-C11 to C12-alkylbenzene.
  8. 9. The record sheet material of claim 7 wherein the biarylalkylbenzene ratio is in the range 2:1 to 1:2.
  9. 10. The record sheet material of claim 1 wherein the color-producing reactant material is Crystal Violet Lactone.
  10. 11. The record sheet material of claim 1 wherein the color-producing reactant material is para-substituted-phenol -formaldehyde novolak resin.
  11. 12. The record sheet material of claim 11 wherein the novolak resin is para-phenylphenol-formaldehyde resin.
  12. 13. The record sheet material of claim 1 wherein the total biaryl content consists of about 80 percent of a mixture meta-isopropylbiphenyl and para-isopropylbiphenyl, about 20 percent of polyisopropylbiphenyl, and about 1 percent biphenyl.
  13. 14. The record sheet material of claim 1 wherein the isopropylbiphenyl is predominantly meta-isopropylbiphenal.
US3627581A 1970-10-19 1970-10-19 Pressure-sensitive record material Expired - Lifetime US3627581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US8219870 true 1970-10-19 1970-10-19

Publications (1)

Publication Number Publication Date
US3627581A true US3627581A (en) 1971-12-14

Family

ID=22169670

Family Applications (1)

Application Number Title Priority Date Filing Date
US3627581A Expired - Lifetime US3627581A (en) 1970-10-19 1970-10-19 Pressure-sensitive record material

Country Status (9)

Country Link
US (1) US3627581A (en)
BE (1) BE774127A (en)
CA (1) CA965947A (en)
DE (1) DE2151178B2 (en)
DK (1) DK129403C (en)
ES (1) ES395698A1 (en)
FR (1) FR2111473A5 (en)
GB (1) GB1320273A (en)
NL (1) NL166222C (en)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836383A (en) * 1970-10-27 1974-09-17 Fuji Photo Film Co Ltd Pressure sensitive recording paper
US3846331A (en) * 1971-08-04 1974-11-05 Kureha Chemical Ind Co Ltd Solvent composition for dyes for use in pressure-sensitive copying paper
US3865613A (en) * 1971-09-23 1975-02-11 Wiggins Teape Res Dev Pressure-sensitive copying systems
US3976427A (en) * 1972-05-23 1976-08-24 Sandoz Ltd. Organic compounds
JPS51127816A (en) * 1975-04-28 1976-11-08 Ncr Co Materials of record sheets
FR2309613A1 (en) * 1975-05-02 1976-11-26 Kureha Chemical Ind Co Ltd Improvements solvent for dyes used in sensitive copying papers to pressure, and such copying papers
US3996405A (en) * 1973-01-24 1976-12-07 Ncr Corporation Pressure-sensitive record material
US4003589A (en) * 1970-07-11 1977-01-18 Kureha Kagaku Kogyo Kabushiki Kaisha Carbonless copying paper
US4012554A (en) * 1972-12-15 1977-03-15 Ncr Corporation Single coating record system-solvent loss produces color
US4039712A (en) * 1971-03-02 1977-08-02 Nippon Petrochemicals Company Ltd. Process for producing a solvent for use in microcapsule for pressure-sensitive copying paper
US4064068A (en) * 1975-07-30 1977-12-20 Sun Oil Company Of Pennsylvania Preparation of isopropylnaphthalene mixture
DE2823758A1 (en) * 1977-06-24 1979-01-11 Westinghouse Electric Corp With meta-isopropylbiphenyl insulated electrical package
WO1985005327A1 (en) * 1984-05-21 1985-12-05 Ncr Corporation Marking liquid composition
USRE32162E (en) * 1971-03-02 1986-05-27 Nippon Petrochemicals Co., Ltd. Pressure sensitive record material employing diaryl alkane solvents
US4684574A (en) * 1984-03-09 1987-08-04 Papierfabrik August Koehler Ag Process for encapsulating dissolved reactants of color reaction system and resulting capsules
US4699658A (en) * 1986-05-02 1987-10-13 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper sheet and pressure-sensitive recording paper sheet prepared by using the solvent
EP0243554A1 (en) * 1986-05-02 1987-11-04 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper
FR2611211A1 (en) * 1987-02-19 1988-08-26 Kureha Chemical Ind Co Ltd Solvent for dye precursor chromogenic sheet for carbonless paper and carbonless paper prepared using the solvent
US4774136A (en) * 1986-05-02 1988-09-27 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for the chromogenic dye-precursor material for a pressure-sensitive recording paper sheet and a pressure-sensitive recording paper sheet prepared by using the solvent
US4795493A (en) * 1986-01-07 1989-01-03 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper sheet and pressure-sensitive recording paper sheet prepared by using the solvent
US5318940A (en) * 1992-12-02 1994-06-07 Koch Industries, Inc. Carbonless paper solvent comprising diisopropylbiphenyl and triisopropylbiphenyl and products utilizing same
US5726456A (en) * 1995-02-17 1998-03-10 Gel Sciences, Inc. Encapsulated materials
US5849412A (en) * 1995-02-17 1998-12-15 Medlogic Global Corporation Encapsulated materials
WO2004000570A1 (en) 2002-06-25 2003-12-31 Appleton Papers Inc. Product authentication
US20040214134A1 (en) * 2003-04-22 2004-10-28 Appleton Papers Inc. Dental articulation kit and method
US20060063125A1 (en) * 2003-04-22 2006-03-23 Hamilton Timothy F Method and device for enhanced dental articulation
US20100099594A1 (en) * 2008-10-17 2010-04-22 Robert Stanley Bobnock Fragrance-delivery composition comprising boron and persulfate ion-crosslinked polyvinyl alcohol microcapsules and method of use thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9221621D0 (en) * 1992-10-15 1992-11-25 Wiggins Teape Group Ltd Solvents for use in pressure-sensitive record material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432327A (en) * 1964-03-13 1969-03-11 Pilot Pen Co Ltd Pressure sensitive copying sheet and the production thereof
US3481759A (en) * 1966-08-22 1969-12-02 Minnesota Mining & Mfg Impact marking carbonless paper
US3488207A (en) * 1965-10-22 1970-01-06 Us Plywood Champ Papers Inc Process of preparing a colored substance and transfer copy set
US3540913A (en) * 1967-01-30 1970-11-17 Ncr Co Pressure sensitive recording sheet employing substituted indole phthalides

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432327A (en) * 1964-03-13 1969-03-11 Pilot Pen Co Ltd Pressure sensitive copying sheet and the production thereof
US3488207A (en) * 1965-10-22 1970-01-06 Us Plywood Champ Papers Inc Process of preparing a colored substance and transfer copy set
US3481759A (en) * 1966-08-22 1969-12-02 Minnesota Mining & Mfg Impact marking carbonless paper
US3540913A (en) * 1967-01-30 1970-11-17 Ncr Co Pressure sensitive recording sheet employing substituted indole phthalides

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003589A (en) * 1970-07-11 1977-01-18 Kureha Kagaku Kogyo Kabushiki Kaisha Carbonless copying paper
US3836383A (en) * 1970-10-27 1974-09-17 Fuji Photo Film Co Ltd Pressure sensitive recording paper
USRE33113E (en) * 1970-10-27 1989-11-14 Fuji Photo Film Co., Ltd. Pressure sensitive recording paper
USRE32162E (en) * 1971-03-02 1986-05-27 Nippon Petrochemicals Co., Ltd. Pressure sensitive record material employing diaryl alkane solvents
US4039712A (en) * 1971-03-02 1977-08-02 Nippon Petrochemicals Company Ltd. Process for producing a solvent for use in microcapsule for pressure-sensitive copying paper
US3846331A (en) * 1971-08-04 1974-11-05 Kureha Chemical Ind Co Ltd Solvent composition for dyes for use in pressure-sensitive copying paper
US3865613A (en) * 1971-09-23 1975-02-11 Wiggins Teape Res Dev Pressure-sensitive copying systems
US3976427A (en) * 1972-05-23 1976-08-24 Sandoz Ltd. Organic compounds
US4012554A (en) * 1972-12-15 1977-03-15 Ncr Corporation Single coating record system-solvent loss produces color
US3996405A (en) * 1973-01-24 1976-12-07 Ncr Corporation Pressure-sensitive record material
US4027065A (en) * 1975-04-28 1977-05-31 Ncr Corporation Pressure-sensitive record material
JPS51127816A (en) * 1975-04-28 1976-11-08 Ncr Co Materials of record sheets
JPS5648319B2 (en) * 1975-04-28 1981-11-14
FR2309613A1 (en) * 1975-05-02 1976-11-26 Kureha Chemical Ind Co Ltd Improvements solvent for dyes used in sensitive copying papers to pressure, and such copying papers
US4064068A (en) * 1975-07-30 1977-12-20 Sun Oil Company Of Pennsylvania Preparation of isopropylnaphthalene mixture
US4266264A (en) * 1977-06-24 1981-05-05 Westinghouse Electric Corp. Meta isopropyl biphenyl insulated electrical apparatus
DE2823758A1 (en) * 1977-06-24 1979-01-11 Westinghouse Electric Corp With meta-isopropylbiphenyl insulated electrical package
US4684574A (en) * 1984-03-09 1987-08-04 Papierfabrik August Koehler Ag Process for encapsulating dissolved reactants of color reaction system and resulting capsules
US4748146A (en) * 1984-03-09 1988-05-31 Papierfabrik August Koehler Ag Process for encapsulating dissolved reactants of color reaction systems, the capsules obtained as a result thereof and their use in non-carbon papers
WO1985005327A1 (en) * 1984-05-21 1985-12-05 Ncr Corporation Marking liquid composition
US4795493A (en) * 1986-01-07 1989-01-03 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper sheet and pressure-sensitive recording paper sheet prepared by using the solvent
GB2189797B (en) * 1986-05-02 1990-04-18 Kureha Chemical Ind Co Ltd Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper
FR2598121A1 (en) * 1986-05-02 1987-11-06 Kureha Chemical Ind Co Ltd Solvent for dye precursor chromogenic material for sensitive recording paper sheet has the pressure and sheet-sensitive recording paper to the prepared pressure with the solvent
FR2598122A1 (en) * 1986-05-02 1987-11-06 Kureha Chemical Ind Co Ltd Solvent for dye precursor chromogenic material for sensitive recording paper sheet has the pressure and sheet-sensitive recording paper to the prepared pressure with this solvent
GB2189797A (en) * 1986-05-02 1987-11-04 Kureha Kagaku Kokyo Kabushiki Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper
GB2189798A (en) * 1986-05-02 1987-11-04 Kureha Chemical Ind Co Ltd Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper
GB2189798B (en) * 1986-05-02 1990-05-02 Kureha Chemical Ind Co Ltd Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper
US4774136A (en) * 1986-05-02 1988-09-27 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for the chromogenic dye-precursor material for a pressure-sensitive recording paper sheet and a pressure-sensitive recording paper sheet prepared by using the solvent
EP0243554A1 (en) * 1986-05-02 1987-11-04 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper
US4822767A (en) * 1986-05-02 1989-04-18 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper sheet and pressure-sensitive recording paper sheet prepared by using the solvent
EP0244531A1 (en) * 1986-05-02 1987-11-11 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for chromogenic dye-precursor material for pressure sensitive recording paper
US4699658A (en) * 1986-05-02 1987-10-13 Kureha Kagaku Kogyo Kabushiki Kaisha Solvent for chromogenic dye-precursor material for pressure-sensitive recording paper sheet and pressure-sensitive recording paper sheet prepared by using the solvent
FR2611211A1 (en) * 1987-02-19 1988-08-26 Kureha Chemical Ind Co Ltd Solvent for dye precursor chromogenic sheet for carbonless paper and carbonless paper prepared using the solvent
US5318940A (en) * 1992-12-02 1994-06-07 Koch Industries, Inc. Carbonless paper solvent comprising diisopropylbiphenyl and triisopropylbiphenyl and products utilizing same
EP0601690A1 (en) * 1992-12-02 1994-06-15 Koch Industries, Inc. Solvent for use in carbonless paper, comprising diisopropylbiphenyl and triisopropylbiphenyl, and products utilising the same
US5458974A (en) * 1992-12-02 1995-10-17 Koch Industries, Inc. Microencapsulated composition containing solvent including triisopropyylbiphenyl
US5726456A (en) * 1995-02-17 1998-03-10 Gel Sciences, Inc. Encapsulated materials
US5789494A (en) * 1995-02-17 1998-08-04 Medlogic Global Corporation Encapsulated materials
US5849412A (en) * 1995-02-17 1998-12-15 Medlogic Global Corporation Encapsulated materials
US5932285A (en) * 1995-02-17 1999-08-03 Medlogic Global Corporation Encapsulated materials
US6013698A (en) * 1995-02-17 2000-01-11 Medlogic Global Corporation Encapsulated materials
WO2004000570A1 (en) 2002-06-25 2003-12-31 Appleton Papers Inc. Product authentication
US20040214134A1 (en) * 2003-04-22 2004-10-28 Appleton Papers Inc. Dental articulation kit and method
US6932602B2 (en) 2003-04-22 2005-08-23 Appleton Papers Inc. Dental articulation kit and method
US20060063125A1 (en) * 2003-04-22 2006-03-23 Hamilton Timothy F Method and device for enhanced dental articulation
US20100099594A1 (en) * 2008-10-17 2010-04-22 Robert Stanley Bobnock Fragrance-delivery composition comprising boron and persulfate ion-crosslinked polyvinyl alcohol microcapsules and method of use thereof
US7915215B2 (en) 2008-10-17 2011-03-29 Appleton Papers Inc. Fragrance-delivery composition comprising boron and persulfate ion-crosslinked polyvinyl alcohol microcapsules and method of use thereof
EP2907568A1 (en) 2008-10-17 2015-08-19 Appvion, Inc. A fragrance-delivery composition comprising persulfate ion-crosslinked polyvinyl alcohol microcapsules and method of use thereof

Also Published As

Publication number Publication date Type
ES395698A1 (en) 1974-12-16 application
NL7114361A (en) 1972-04-21 application
DK129403B (en) 1974-10-07 grant
GB1320273A (en) 1973-06-13 application
DE2151178B2 (en) 1977-06-08 application
CA965947A (en) 1975-04-15 grant
BE774127A1 (en) grant
CA965947A1 (en) grant
FR2111473A5 (en) 1972-06-02 application
BE774127A (en) 1972-02-14 grant
NL166222B (en) 1981-02-16 application
DE2151178A1 (en) 1973-01-25 application
DK129403C (en) 1975-02-24 grant
NL166222C (en) 1981-07-15 grant

Similar Documents

Publication Publication Date Title
US3491112A (en) 3-(phenyl)-3-(heterocyclic-substituted)-phthalides
US3624107A (en) Nitro- and amino-substituted fluorans
US3663256A (en) Mark-forming record material
US3775424A (en) Furo(3,4-b)pyridine-7(5h)-ones
US4010038A (en) Process for producing microcapsules
US4840933A (en) Heat sensitive recording material
US4401717A (en) Heat-sensitive recording material
US3514310A (en) Pressure sensitive fluoran derivative copying paper
US3875074A (en) Formation of microcapsules by interfacial cross-linking of emulsifier, and microcapsules produced thereby
US4197346A (en) Self-contained pressure-sensitive record material and process of preparation
US4820682A (en) Heat sensitive recording materials
US4046941A (en) Support sheet with sensitized coating of organic acid substance and organic high molecular compound particulate mixture
US4073968A (en) Method for desensitization of a color developer
US4262936A (en) Color developing ink containing aliphatic esters with 8-25 carbon atoms
US3681390A (en) Dialkylamino fluoran chromogenic compounds
US3937864A (en) Heat-sensitive recording sheets having improved stability
US3723156A (en) Record material
US4101690A (en) Desensitizing composition
US3874895A (en) Recording sheet
US3732120A (en) Pressure-sensitive recording sheet
US4533930A (en) Recording materials
US4134847A (en) Method for the production of a color developer and the obtained color developer
US4728633A (en) Recording material
US4742043A (en) Heat-sensitive recording material
US4154463A (en) Pressure-sensitive or heat-sensitive recording material containing a carbazolyl methane compound

Legal Events

Date Code Title Description
AS Assignment

Owner name: APPLETON PAPERS INC.

Free format text: MERGER;ASSIGNORS:TUVACHE, INC.;GERMAINE MONTEIL COSMETIQUES CORPORATION (CHANGED TO APPLETON PAPERS);REEL/FRAME:004108/0262

Effective date: 19811215