Patents
Patents for B41M 5 - Duplicating or marking methods; Sheet materials for use therein (48,459)
12/1981
12/02/1981EP0040770A1 Concentrated suspension of microcapsules, a process for its preparation and its use in transfer-copying paper
12/01/1981US4303719 Chromogenic copy system
12/01/1981US4303548 Process for coating dispersed minute droplets with membrane
12/01/1981CA1113474A1 3-aryl-3-heterylphthalides and preparations thereof
12/01/1981CA1113243A1 Chemically reactive recording medium
11/1981
11/24/1981USRE30803 Colorless recording paper
11/24/1981US4302393 Fluoran compounds
11/24/1981CA1113149A1 Lightning arrester device
11/24/1981CA1112959A1 Coating of paper
11/24/1981CA1112932A1 High sensitivity imaging film containing separate layers of components which form low melting point eutectics
11/24/1981CA1112928A1 Image reproduction process using sublimable colorants
11/24/1981CA1112832A1 Multiple distributor heads for laying dry fibers
11/17/1981USRE30797 Associated dye salts and method of forming colored indicia therewith
11/17/1981US4301195 Transparent sheet material
11/17/1981CA1112762A1 Thermosensitive data-carrier and method
11/11/1981EP0039516A2 Recording medium for recording apparatus
11/11/1981EP0039383A2 Metallic recording paper
11/10/1981US4300227 Replicable optical recording medium
11/10/1981US4299880 Demand and timed renewing imaging media
11/10/1981US4299723 Carbonless copy paper, polyaddition product of an oxadiazinetrione diisocyanate and a diamine
11/10/1981US4299411 Pressure-sensitive record material
11/10/1981CA1112361A1 Optically recordable and readable information carrier and process
11/04/1981EP0039092A1 Process and means for producing markings on transparent overhead-projection foils by thermography
11/04/1981EP0038985A1 Microcapsules having a specific opening temperature, method for their preparation and their application
11/03/1981US4298975 Optical recording medium and method of optically recording information thereon
11/03/1981US4298651 Image wise developable sheet
11/03/1981US4298215 Carbonless duplicating and marking systems
11/03/1981CA1111717A1 Method for making a decorated, water-resistant, rigid panel and the product made thereby
11/03/1981CA1111633A1 Bodies with reversibly variable temperature-dependent light absorbence
10/1981
10/27/1981US4297396 Using two coating liquids of differing viscosity
10/27/1981US4297099 By penetration and crosslinking
10/27/1981US4296948 A layer of mixed phenolformaldehyde resin and active silicic acid and titanium dioxide; discoloration inhibition
10/27/1981US4296947 And containing a lactone fluoran or lactone phthalide color precursor
10/27/1981CA1111205A1 Sublimable dye solutions especially for the production of inks used in felt markers or pens
10/20/1981US4296422 Image recording material and image recording method using the same
10/20/1981US4295888 Chloroparaffin, chromogen, oxidation resistance, discoloration inhibition, alkaline earth sulfonate or phenate, modified polyisobutylene
10/20/1981US4295663 3-Indolyl-3-bis-amino-phenyl-phthalide compounds
10/20/1981US4295662 Image wise developable system
10/20/1981CA1110929A1 Microencapsulation with modified aliphatic polyisocyanates
10/20/1981CA1110805A1 Stable hectograph compositions, transfer elements and processes
10/14/1981EP0037682A1 Method of and apparatus for applying a coating to a web of sheet material
10/14/1981EP0037477A2 Copying system and method for its manufacture, and offset or printing dyes useful in this system
10/14/1981EP0037464A2 Process for selectively reinking used thermal transfer printing ribbon and method for making a colloidal dispersion for use in said process
10/13/1981US4294921 Method of hardening gelatin
10/13/1981US4294912 Thermally responsive cobalt(III) complex imaging compositions having lowered activation temperatures
10/13/1981US4294641 Heat transfer sheets
10/13/1981US4294637 Process for manufacture of a wide patterned band such as a transfer-carrying sheet and for printing on a substrate therewith
10/13/1981CA1110493A1 Electro-mechanical marking device
10/07/1981EP0037370A2 Supportless carbon recording material
10/07/1981EP0036936A1 Electro-thermal printing ribbons
10/06/1981US4293866 Recording apparatus
10/06/1981US4293634 Binders, aggregation, crystallization
10/06/1981CA1110244A1 Synthesis of chromogenic indolylphenyldihydrofuropyridin-one compounds
10/06/1981CA1110064A1 Process for producing a pressure-sensitive carbonless copy sheet using microcapsules formed in situ in a radiation curable binder
10/06/1981CA1110063A1 Process for producing pressure-sensitive copy sheets using novel radiation curable coatings
10/01/1981WO1981002707A1 Method and device for marking a transparent sheet designed for a transfer by means of a thermocopy
09/1981
09/30/1981EP0036680A1 Method of marking a synthetic material surface
09/30/1981EP0036469A2 Process for the manufacture of a sliding layer on the surface of the aluminium layer of a recording substrate
09/29/1981US4292103 Thermal diffusion of multicolor design from a releaseable sheet into an adsorptive porous layer of activated alumina or silica
09/29/1981US4291994 Tear resistant ribbon for non-impact printing
09/29/1981US4291902 Pressure- and heat-sensitive elements; copying; colorfastness
09/29/1981US4291901 Pressure-sensitive or heat-sensitive recording material
09/29/1981CA1109671A1 Donor material for carbonless copying and coating composition for the same
09/29/1981CA1109609A1 Latent sensitizing ink
09/29/1981CA1109608A1 Heat transfer printing
09/23/1981EP0036117A2 Pressure-sensitive recording material
09/23/1981EP0036101A1 Low viscous microcapsules and binders containing aqueous inks for coating and printing, paper sheet coated or printed with the same and use thereof in pressure-sensitive copying systems
09/22/1981US4291119 Recording material
09/22/1981US4291102 Poly-oxyalkylene glycols endcapped with an unsaturated acid or ester moity
09/22/1981US4290933 Adhesive composition for making form sets from carbonless copy paper sheets
09/22/1981CA1109258A1 Process for the production of novel radiation curable microcapsular coating compositions
09/16/1981EP0035775A2 Substituted 1H-indoles, process for their preparation and duplicating and marking systems comprising them
09/16/1981EP0035774A2 Indoles, process for preparing them and duplicating or marking systems containing them
09/16/1981EP0035773A2 Substituted oximes, process for preparing them and duplicating and marking systems
09/15/1981US4290075 Optical recording device having several ablative recording layers
09/15/1981US4289806 Pressure-sensitive recording material
09/15/1981US4289535 Chromogenous 3,3-bisarylphthalane derivative and color-developing phenol for thermography
09/15/1981US4289332 Recording sheet
09/15/1981CA1108944A1 Capsule manufacture
09/15/1981CA1108943A1 Capsule manufacture
09/15/1981CA1108942A1 Capsule manufacture
09/09/1981EP0035106A2 Process for producing a record carrier coated with a lacquer layer containing a contrast agent and a layer containing aluminium, and record carrier produced thereby
09/09/1981EP0035105A2 Process for the manufacture of a sliding layer on the surface of a recording substrate coated with a thin aluminium layer
09/08/1981US4288510 Process of making an optically recordable and readable information carrier and the carrier obtained by this process
09/08/1981US4288509 Recording material
09/08/1981CA1108686A1 High speed imaging of electrophotographic film by fine beam scanning
09/08/1981CA1108665A1 T-shirt coloring kit
09/03/1981WO1981002490A1 Real-time optical disc and method for record and readout
09/01/1981US4287522 Apparatus and a method for recording information
09/01/1981US4287336 Chromogenic propenylenesulfone compounds
09/01/1981US4287264 Heat sensitive coating
09/01/1981US4287234 Wherein one of the sets has an electrophilic acceptor coating and the other a nucleophilic coating, and the ink contains an alkoxylated nucleophilic compound
09/01/1981US4287074 Sec-ylbiphenyl composition and process for preparing the same
09/01/1981CA1108018A1 Sheet containing sublimable dye and blocking agent for heat transfer printing
09/01/1981CA1107955A1 Manifold carbonless form and process for the continuous production thereof
08/1981
08/26/1981EP0034376A2 Thermosensitive stereo recording method
08/25/1981US4286017 Heat-sensitive recording paper
08/25/1981US4286008 Dry release transfers
08/25/1981CA1107501A1 Low-odor dye solvents for pressure-sensitive copying systems
08/25/1981CA1107457A1 Complex amine-silane treated cellulosic materials