Abstract: A process includes first preparing an adhesive composition containing electron beam-curable PSA polymer matrix, fillers and solvent. The composition is introduced and conveyed through a twin screw extruder. In the extruder, solvent is removed in one or more solvent removal units, and a solvent-free composition is extruded as the carrier layer. Skin layers may be co-extruded with the carrier layer.

Abstract: For the permanent printing of a substrate with fixed and/or variable data, a hot blocking-foil having a heated pigment surface, together with the substrate to be printed, is led through a stamping station in which pigment indicia are serially transferred by action of a print head towards a pressure-receiving surface, between which the heated pigmented foil and substrate are passed.

Abstract: A one piece mailer includes a standard size sheet which may be employed in laser printers or xerographic machines without special equipment and involves printing on one side only of the mailer. Stable adhesive material which will not run or contaminate the office machines, when it is subject to several hundred degrees heat is used for sealing. This adhesive is preferably water-activated. One embodiment includes a mailing sheet having an upper and lower half, with the upper half carrying the addresses and the message, and the lower half having windows which match the location of the addresses on the upper half of the mailer. The second embodiment involves a mailer having a first full sheet having an upper portion on which messages are printed, and a lower portion on which addresses are printed. On the rear side of the main sheet is a short partial sheet toward the bottom of the main sheet forming an envelope, and with a transverse strip of adhesive immediately above the envelope pocket to seal the envelope.

Abstract: A self-adhesive label has discrete areas having differently patterned adhesive coverages. Thus, areas where permanent adhesion is desired have full or 100% coverage of a permanent adhesive whereas areas where lesser adhesion is desired have fine patterns with lesser percentages of coverage, such as 30% coverage of the same adhesive which would permit a resealable mode of operation. This type of label could be applied from backing tape to a cereal box, or a bag for example, to control operation of a dispensing flap or spout. A label may have full coverage of a permanent pressure-sensitive adhesive at one end, an area of fine adhesive pattern coverage for resealing, and an adhesive-free lift tab at the remote end. The fine pattern may include lines of adhesive extending in the direction of peeling, to provide uniform resistance.

Abstract: Film-forming means are coextruded to form all plastic multilayer liners and facestocks for pressure-sensitive labels, tapes, decals, signs, bumper stickers, and other products formed from sheet and roll stock. Fill means in a charge for the liner coextrusion affects stiffness and dimensional stability of the liner and/or affects the roughness of a liner face or faces. The film materials of the layers of the constructions are selected according to the cost/benefit characteristics of candidate materials considering the functional or operational requirements of the layer in question.

Abstract: There is provided an apparatus for applying constant pressure to a plurality of anvil rollers for crush-scoring used in combination with crush-scoring cylinders having protrusions extending from the surface thereof. Each anvil roller is supported in a substantially frictionless manner and the constant pressure is supplied by a flexible diaphragm acting on a plunger which can move substantially without friction in a pneumatic cylinder.

Abstract: There is provided an apparatus for applying constant pressure to a plurality of anvil rollers for crush-scoring used in combination with crush-scoring cylinders having protrusions extending from the surface thereof. Each anvil roller is supported in a substantially frictionless manner and the constant pressure is supplied by a flexible diaphragm acting on a plunger which can move substantially without friction in a pneumatic cylinder.

Abstract: Methods and products are disclosed in the manufacture of liner-carried "dry" tags or labels, and the manufacture of liner-carried presure-sensitive coated middle liners on which dry tags or labels are "piggybacked," and the manufacture of liner-carried coupons printable on one side. These methods and products utilize a carry-release component comprising a paper or film layer and a thermoplastic film cast or extruded onto the paper or film layer so as to be firmly but temporarily anchored thereto.

Abstract: An apparatus for binding a pile of paper, primarily meant for relatively small-scale use, including the binding by so-called copying-shops, comprising a table for supporting the pile of paper to be bound or glued, and an adhesive tape emitting device comprising a carriage supporting a cassette rotatably housing a roll of adhesive tape. The carriage can be guided by a groove of the table provided beneath a pressure rail for holding down the pile of paper, or by the pressure rail itself. The roll of adhesive tape can be marketed in a filling cassette to be inserted in the cassette.

Abstract: A label assembly includes concealed promotional material, and is secured to the product package with the assembly including water-soluble adhesive. The promotional material may be in the form of a "cents-off" coupon or a scratch-off lottery-type game piece. The use of water-soluble adhesive deters tampering prior to purchase of the product, and the coupon or game piece is subsequently exposed when the water soluble adhesive is washed away. The label assembly may include either one, two, or three layers, with the lowermost label being secured to a backing strip or web preparatory to application to the product. When a single layer is employed, it is opaque, and the promotional material is on its lower surface. In a three-layer unit, the game piece may be sandwiched between an outer label having water-soluble adhesive, and the base label which is provided with permanent pressure-sensitive adhesive.

Abstract: Multilayer laminates are made by extruding two polymeric films of different composition and forming them in contact with each other to provide a peelable interface, and forming a divisible core structure by permanently combining one of said films with a layer of pressure sensitive adhesive and combining the other film with at least one additional layer. The invention is useful for providing "dry" or non-tacky peelable labels and for providing renewable surfaces on articles such as trays or other substrates.

Abstract: Polythiol crosslinking agents are used in combination with electron beam and/or photoinitiator ultraviolet cure to enhance the high temperature shear properties of rubber-based pressure-sensitive adhesives.

Abstract: Pressure-sensitive copolymers based on acrylic monomers are provided with high adhesive performance characteristics by the inclusion of a synergistic amount of an N-vinyl lactam monomer and a glycidyl monomer with the bulk of the monomers being an alkyl acrylate and/or methacrylate esters.

Abstract: Inherently tacky infusible pressure-sensitive adhesive microspheres are prepared by polymerizing at least one monomer which when polymerized will form a pressure-sensitive adhesive having a glass transition temperature less than abotu -20.degree. C. in an organic medium in which the monomer is substantially insoluble and in the presence of a surfactant and a suspension stabilizer which are soluble in the organic medium and substantially insoluble in the monomer under conditions of shear sufficient to form suspended particles of a size less than 200 microns. A monomer soluble initiator is preferably employed. The preferred media are ethylene glycol and glycerol and the preferred monomers are 2-ethyl hexyl acrylate and methacrylic acid.

Abstract: An envelope assembly has rectangular form and cross-sectional thickness consistency for utilization with a sheet-feed printing apparatus. The assembly includes a first sheet having a centrally located transverse perforated tear line, and a second composite sheet having sections forming pockets, and strips forming sealing flaps toward the central tear line, so that the assembly has substantially the same thickness throughout. Thus, printing apparatus systems that have capabilities only for feed bin, paper tray or paper cassette feeding methods and are incapable of handling single business-size envelopes can be utilized for envelope printing with the present invention.

Abstract: A disposable diaper has tabs which are converted from a nonextensible to an extensible state by merely deploying the taps for diapering and without having to break a weakened joint to accomplish the conversion.

Abstract: There is provided an apparatus for applying constant pressure to a knife blade for crush-scoring, wherein the knife blade is supported in a substantially frictionless manner and the constant pressure is supplied by a flexible diaphragm acting on a plunger which can move substantially without friction in a pneumatic cylinder.

Abstract: There is provided a curable pressure-sensitive-adhesive layer comprising an interpolymerized hard-monomer system including one alkyl methacrylate present in an amount up to about 25% by weight, based on the total weight of the monomers, and a soft-monomer system present in an amount of from about 50% to about 95% by weight, and comprising at least one alkyl monoester or diester of an unsaturated dicarboxylic acid containing 4 carbon atoms wherein each alkyl group independently contains from 4 to about 8 carbon atoms, the monoester or diester being present in a total amount of up to about 30% by weight, based on the total weight of the monomers, and at least one alkyl acrylate. Cure occurs by electron-beam radiation or by ultraviolet radiation, the former at a dosage of up to 200 kiloGray, after application to a substrate. A multifunctional monomer may be used to enhance radiant-energy cure.

Abstract: A one piece mailer for use in laser printers or xerographic copying machines includes a standard size sheet which may be employed in laser printers or xerographic machines without special handling equipment and involves printing on one side only of the mailer. In addition, stable adhesive material is employed for sealing the one piece mailer which will not run or contaminate the office machines, when it is subject to several hundred degrees heat. This adhesive is preferably a water-activated adhesive other than natural gum (which is heat-activated). The first embodiment of the invention includes a mailing sheet having an upper and lower half, with the upper half carrying the addresses and the message, and the lower half having windows which match the location of the addresses on the upper half of the mailer. The second embodiment of the invention involves a mailer having a first full sheet having an upper portion on which the messages are printed, and a lower portion on which the addresses are printed.

Abstract: A self-adhesive label has discrete areas having differently patterned adhesive coverages. Thus, areas where permanent adhesion is desired have full or 100% coverage of a permanent adhesive whereas areas where lesser adhesion is desired have fine patterns with lesser percentages of coverage, such as 30% coverage of the same adhesive which would permit a resealable mode of operation. This type of label could be applied from backing tape to a cereal box, for example, to control operation of a dispensing flap or spout.