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.

Abstract: Silk screen roller applicators, employed in a process which is also known as Screen Process Printing, are often used in the printing of labels and other materials. The present invention involves joining the edges of silk screen type material along a very narrow line, such as 1/32 inch, so that economies are achieved in printing and the associated use of paper, when the resultant applicator is formed. The two edges to be joined are each marked with at least two index marks, and these are aligned with corresponding light slots which are located on a base on either side of a fusing line. The silk screen type mesh which may be formed of a polyester coated with nickel, may be held down by magnetic plates, and the edges are accurately overlapped by aligning the index marks and the light guide slots, through the use of eccentric or similar mechanisms. A thin thread of nylon or other fusible material is tightly drawn between the edges of the fabric along the fusing line, with the fabric overlapped by about 1/32 inch.

Abstract: A heat-sensitive material is incorporated into a fluid prepolymer precursor of a pressure-sensitive adhesive to form a stable mixture. The mixture is cast onto a substrate, and the prepolymer is polymerized into a pressure-sensitive adhesive by the action of ultraviolet radiation, electron-beam radiation, or a combination thereof.

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: In a process for transferring indicia from paper to a fabric backing member such as a T-shirt, of the type wherein an indicia carrier layer of tacky contact adhesive is bonded to the backing member by a thermoplastic elastomer layer, the combination of webs involved in the transfer process is supported through the various steps, including the water wash and at least the initiation of fusing, by a temporary support layer of heat-resistant water-impervious polymer having a non-silicone high release coating, and heat and pressure are applied through such layer to firmly fuse the thermoplastic elastomer layer along with the carrier layer and the indicia to the backing member prior to stripping of the temporary support layer. The firm fusing and the release action established by the non-silicone high release coating prevent distortion or destruction of any portion of the indicia during the stripping step.

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: A pressure sensitive adhesive tape, such as a white typing correction tape, is wound up with backing tape or a liner tape wound between successive turns of the tape. The backing tape is cut into short lengths, and the correction tape is bent sharply back upon itself over a "peeling" member as it is dispensed, to separate the short lengths of the backing or liner tape and leave them behind in the carton. The space within the standard size dispenser package is adequate to hold the waste pieces of backing tape as the correction tape roll is used up. A short cutting blade may be provided to cut off desired lengths of the correction tape.

Abstract: A bandage for the transdermal or topical administration of a drug over an extended period of time comprising an impermeable backing sheet, a solid drug pellet on the backing sheet, and a layer of contact adhesive covering the pellet and backing sheet. In another form, the adhesive is carried by a web made of a non-woven or woven fabric. Control over the rate of dissolution of the solid drug can be achieved by varying the type of web fabric, the type of adhesive, and the thickness of the adhesive.

Abstract: A coating composition for application onto a plastic film to produce a coating onto which xerographic toner will adhere is disclosed. The coating composition produces a coating having a glass transition temperature of from about 50.degree. to about 150.degree. C., a Sheffield surface smoothness of 28 to 50 and, when applied to both sides of the plastic film will generate an opacity of at least 75%. The coating composition comprises a resin binder, preferably a polyester resin, filler particles and solvent, and preferably further comprises a cross-linking agent and an antistatic agent. The coating composition is preferably applied to a polyester film, more preferably to a tear-resistant polyethylene terephthalate film.

Abstract: A pressure-sensitive adhesive comprising an at least partially compatible mixture of a thermoplastic rubber and an aliphatic hydrocarbon tackifying system having a softening point of from about 30.degree. to about 80.degree. C. and in which the thermoplstic rubber is present in an amount of from about 15 to about 30 percent by weight, based on the total weight of the thermoplastic rubber and the aliphatic hydrocarbon resin tackifying system, enable high-speed production of matrix-stripped label stock.

Abstract: A magnetic folio or notebook, capable of handling up to 40 or more sheets of paper, includes two notebook covers which are hingedly secured together, with a thin strip of permanent magnet material secured to one of the covers near the binding of the notebook. A second thin strip of magnetic material is mounted either on the other cover of the folio or notebook, or on a thin strip of flexible material, so that it may fold over on top of the first permanent magnet strip to hold a stack of papers between the two strips. The permanent magnet strips may be formed of ferrite material, with successive north and south poles along the length of the magnet strips from the top to the bottom of the notebook.

Abstract: An array of at least three parallel rolls is provided. The rolls are constrained against each other to provide an elongated coating chamber through which passes a web entrained on at least one of the rolls. As it exits from the chamber, the coated web surface is wiped by another of the rolls, whose surface is entering the chamber at that point.

Abstract: Pressure-sensitive adhesives are formed of a diester of fumaric acid, preferably dibutyl fumarate; an alkyl acrylate, preferably 2-ethylhexylacrylate; an alkyl methacrylate, preferably methylmethacrylate; and, desirably, a crosslinkable carboxylic acid. The adhesives are preferably formed in two-stage, free-radical polymerization.

Abstract: A system for the high speed application of pressure sensitive labels to products includes an apertured label receiving head having both some vacuum apertures or ports and also some high pressure blower apertures or ports. Connected to the vacuum ports is a main vacuum conduit and similarly connected to the high pressure blower ports is a source of high pressure air which is applied in pulses to an input high pressure air conduit. The labels are dispensed across the faceplate of the unit and are held onto the faceplate by the vacuum applied to the vacuum apertures or ports. When it is desired to apply a label to the product, a pulse of high pressure air is applied to the unit and a shuttle valve within the faceplate or immediately adjacent thereto, is actuated by the high pressure pulse of air to slide across and close off the vacuum conduit, while high pressure air is simultaneously applied to all of the blower ports to blow the label across onto the product.

Abstract: An adhesive laminate, including a base web having a coating of pressure-sensitive adhesive and a backing removably adhered to the coating of adhesive for protecting and containing the adhesive, is described. The backing has one or more non-linear, discontinuous score lines formed, preferably, with a laser. A sine-wave, geometric pattern is also preferred. The non-linear, discontinuous score line enables a crack-and-peel feature to be introduced to the laminate backing.