| Patent Number |
Title Of Patent |
Date Issued |
| 4966883 |
Composition for use in thermally sensitive coatings and a thermally sensitive recording material |
October 30, 1990 |
| A composition for use in a thermal-sensitive paper coating and a heat-sensitive recording material utilizing the coating, which composition comprises a phenolic developer, e.g., a traditional low speed phenolic having a melting point greater than 120.degree. C., and a pseudo develope |
| 4849286 |
Transparent plotter film |
July 18, 1989 |
| There is provided a transparency sheet suitable for plotter recording having a coating comprised of a polyurethane and a highly hydrophilic polymer. The hydrophilic polymer is preferably polyvinylpryolidone which is admixed with a "water borne" polyurethane. |
| 4781985 |
Ink jet transparency with improved ability to maintain edge acuity |
November 1, 1988 |
| An ink jet transparency is provided which exhibits a unique ability to maintain the edge acuity of ink patterns or blocks on the transparency. The ink jet transparency comprises a substantially transparent resinous support, e.g., a polyester film, and a substantially clear coating thereo |
| 4775594 |
Ink jet transparency with improved wetting properties |
October 4, 1988 |
| An ink jet transparency is provided which exhibits improved wetting properties, thereby resulting in an even surface distribution of ink on the transparency. The ink jet transparency comprises a substantially transparent resinous support, e.g., a polyester film, and a substantially c |
| 4703000 |
Anti-brick/anti-static compositions useful for treating film surfaces and films coated therewith |
October 27, 1987 |
| Provided herewith is an anti-brick/anti-static composition useful for treating film surfaces. The composition comprises (i) an anionic or cationic surfactant exhibiting anti-static properties, and (ii) a similar charged inorganic particle, e.g., a negatively charged silica or positiv |
| 4666811 |
Organic photoconductors having improved pre-exposure fatigue resistance and blooming properties |
May 19, 1987 |
| Disclosed are compounds of the formula ##STR1## wherein n is 1 or 2; R.sup.1 and R.sup.2 are alkyl or aralkyl; R.sup.3 is alkyl; when n is 1, R.sup.4 is alkyl, aralkyl, alkenyl, aralkenyl, aryl or a polyether radical having up to 10 ether groups; and when n is 2, R.sup.4 is alkyl |
| 4656115 |
Emulsion polymerization of methacrylonitrile in the presence of a cationic emulsifier as a vehic |
April 7, 1987 |
| An improved vesicular matrix prepared by the emulsion polymerization of methacrylonitrile, either alone or with a small amount of comonomer, in the presence of a cationic emulsifier. The resulting polymer or copolymer can be used alone, or the polymer or copolymer may be blended with a s |
| 4642383 |
Fast coupling lemon-yellow phenolic couplers |
February 10, 1987 |
| Substituted 2,2'-dihydroxydiphenyl sulfide, sulfoxide, and sulfone compounds, and their use as azo coupling components in light-sensitive diazo compositions. The novel compounds couple with rapidly developing diazonium compounds to provide lemon-yellow dyes, and can be used in combin |
| 4590263 |
High speed diazonium salts useful in diazo type photoreproduction |
May 20, 1986 |
| Novel diazonium salts which possess excellent photo speed, good thermal stability, exceptional resistance to discoloration in the D.sub.min areas, rapid development, and allow a wide range of azo dye colors are provided. The diazonium salts are of the following formula: ##STR1## |
| 4590006 |
Organic photoconductors having improved pre-exposure fatigue resistance and blooming properties |
May 20, 1986 |
| New compounds of the formula ##STR1## wherein n is 1 or 2; R.sup.1 and R.sup.2 are alkyl or aralkyl; R.sup.3 is alkyl; when n is 1, R.sup.4 is alkyl, aralkyl, alkenyl, aralkenyl, aryl or a polyether radical having up to 10 ether groups; and when n is 2, R.sup.4 is alkylene, aralk |
| 4482489 |
Light-sensitive diazonium trifluoromethane sulfonates |
November 13, 1984 |
| Provided are light-sensitive diazonium compounds known as diazonium trifluoromethane sulfonates, which have the structural formula: ##STR1## wherein D --N.dbd.N-- is the cation of a light-sensitive, aromatic diazonium compound. The diazonium trifluoromethane sulfonates are prepared |
| 4451550 |
Vesicular film and composition with phenoxy resin matrix |
May 29, 1984 |
| Novel, coatable, highly long-chain branched, ungelled, most preferably endblocked, non-linear phenoxy resins of random structure devoid of regularly recurring units, with the average distance between the branch sites thereof being essentially of the same order of magnitude as the ave |
| 4407921 |
Electrophotographic elements with polyester binder resins having aprotic end groups |
October 4, 1983 |
| Disclosed are electrophotographic elements comprising a support having coated thereon a photoconductive composition comprising a photoconductor dispersed in a linear film-forming polyester resin having its terminal hydroxyl and carboxyl groups endblocked with aprotic groups. The aprotic |
| 4307171 |
Negative-working diazo type photoreproduction having improved D-min and line acuity |
December 22, 1981 |
| Negative-working diazography material is comprised of (i) at least one hexafluorophosphate diazonium salt adapted to photolytically cleave into an acid catalyst, (ii) at least one acid labile enolic, preferably arylenolic blocked-coupler adapted to be converted in the presence of acid |
| 4307170 |
Negative-working diazo type photoreproduction having improved pH control |
December 22, 1981 |
| Negative-working diazography formulation is comprised of (i) at least one hexafluorophosphate diazonium salt adapted to photolytically cleave into an acid catalyst, (ii) at least one acid labile enolic, preferably arylenolic blocked-coupler adapted to be converted in the presence of acid |
| 4289839 |
Negative image diazography formulation with acid labile coupler, diazonium compound and carboxyl |
September 15, 1981 |
| Negative-working diazography material is comprised of (i) at least one diazonium compound, (ii) at least one acid labile enolic, preferably phenolic blocked-coupler adapted to be converted in the presence of acid to an active azo-coupling component, (iii) at least one light-sensitive |
| 4259499 |
Method for preparing 2-sulfochloride benzoates and the use of same in the preparation of sacchar |
March 31, 1981 |
| A method of preparing 2-sulfochloride benzoates which comprises diazotizing any anthranilate to form a 2-diazonium chloride benzoate and thereafter reacting said 2-diazonium chloride benzoate with sulfur dioxide to form a 2-sulfochloride benzoate. The invention also provides for the tota |
| 4252884 |
Negative-working diazotype photoreproduction |
February 24, 1981 |
| Negative-working diazography material is comprised of (i) at least one diazonium compound, (ii) at least one acid labile enolic, preferably phenolic blocked-coupler adapted to be converted in the presence of acid to an active azo-coupling component, and (iii) at least one light-sensi |
| 4248952 |
Technique for making electrical ground contact with the intermediate conductive layer of an elec |
February 3, 1981 |
| In an electrostatographic recording member comprising at least:an electrically-insulating substrate;an intermediate layer overlying the substrate, the intermediate layer being electrically conductive;an outer layer overlying the intermediate layer, the outer layer comprising a photoconductiv |
| 4248521 |
Electrographic recording apparatus and method |
February 3, 1981 |
| An improved electrographic recording apparatus and method. An electrographic recording medium has a charge retaining front surface on which charge is distributed in a pattern representing a desired image to be recorded, and a field permeable conductive layer. While charge is being de |
| 4245003 |
Coated transparent film for laser imaging |
January 13, 1981 |
| Disclosed is a laser-imagable material comprising a transparent film having thereon a dried coating comprising graphite particles and binder. Also disclosed is the method of making the laser-imagable material and the method of imaging it. |
| 4244321 |
Electrographic development electrode |
January 13, 1981 |
| A development electrode arrangement located in closely-spaced parallel relation to the charge retaining surface of a moving electrographic recording medium. A toner application unit feeds electrostatically charged toner particles into the space between the development electrode arran |
| 4197970 |
Electrostatic drive system |
April 15, 1980 |
| An apparatus for transporting a recording medium, such as transparent electrophotographic film, which has a conductive layer, from a supply to a take-up roll. The apparatus includes a drive roller that has a conductive ring. The conductive layer of the film is maintained at a desired |
| 4195991 |
Electrographic recording method of applying an electric field opposite the charge retaining laye |
April 1, 1980 |
| An improved electrographic recording apparatus and method. An electrographic recording medium has a charge retaining front surface on which charge is distributed in a pattern representing a desired image to be recorded, and a field permeable conductive layer. While charge is being de |
| 4167325 |
Electrographic recording apparatus |
September 11, 1979 |
| An improved electrographic recording system. The system includes a first charging corona for providing a distribution of charge on a surface of a recording medium representing a desired image to be recorded on the medium. The system also includes an automatically controlled second ch |
