Abstract: A lactide polymer composition combining compositional and purity limitations and catalyst optimization or addition of stabilizing agents resulting in a melt-stable polymer is disclosed. The melt-stable lactide polymer comprises a plurality of polylactide polymer chains, residual lactide in concentration of less than 2 percent and water in concentration of less than 1000 parts-per-million. A stabilizing agent in an amount sufficient to reduce depolymerization of the lactide polymer during melt-processing or alternatively, control of catalyst level at a molar ratio of monomer to catalyst greater than 3000:1 is also included in the melt-stable composition. A process for manufacture of a melt-stable lactide polymer composition includes polymerizing a lactide mixture and adding stabilizing agents sufficient to reduce depolymerization of the polylactide during melt-processing, followed by devolatilizing the polylactide to remove monomer and water.

Abstract: Disclosed are articles useful in cleansing, and particularly wet-like cleansing wipes, which are dry until used, where fluid is released from the article. These articles comprise:a. a carrier comprising a cellulosic fibrous structure having at least a first region of relatively high basis weight that comprises an essentially continuous network and a second region of a plurality of mutually discrete regions of relatively low basis weight which are circumscribed by the high basis weight first region; andb. an emulsion applied to the carrier, where the emulsion provides fluid for cleaning when shear forces are applied to the article.The first and second regions of the cellulosic fibrous structure are disposed in a nonrandom, repeating pattern. The articles offer a number of significant advantages over prior cleaning products when in the form of wet-like cleansing wipes such as those used for cleaning of hardsurfaces (e.g., floors, countertops, sinks, bathtubs, toilets, and the like).

Abstract: The use of up to about 20 parts by weight of an organic solvent selected from the group consisting of the water soluble polyalkylene glycol ethers in conventional waterborne packaging and converting adhesives provides comparable or better adhesive products with reduced environmental and health related problems.

Abstract: According to the present invention, a laminar wrapping paper is provided comprising first and second paper layers or laminae. Each lamina has an inside surface coated with a barrier coating. The layers are laminated by heat lamination, wherein the barrier coatings are melted together, or by providing an adhesive between the coated inside surfaces. The lamination may be accomplished in a selective or discontinuous manner in order to form air pockets within the laminar structure to increase the insulation characteristics of the wrapping paper. A plasticizer is applied to the outside surface of the first lamina. Graphic designs or lettering may be printed on the outside surface to identify the wrapped product or for purposes of decoration. The present invention is also directed at a process and apparatus for manufacturing the laminar wrapping paper described herein. First and second webs of paper are unrolled and passed through coating apparatus to coat one side of each web with a barrier coating.

Abstract: A lactide polymer composition combining compositional and purity limitations and catalyst optimization or addition of stabilizing agents resulting in a melt-stable polymer is disclosed. The melt-stable lactide polymer comprises a plurality of polylactide polymer chains, residual lactide in concentration of less than 2 percent and water in concentration of less than 1000 parts-per-million. A stabilizing agent in an amount sufficient to reduce depolymerization of the lactide polymer during melt-processing or alternatively, control of catalyst level at a molar ratio of monomer to catalyst greater than 3000:1 is also included in the melt-stable composition. A process for manufacture of a melt-stable lactide polymer composition includes polymerizing a lactide mixture and adding stabilizing agents sufficient to reduce depolymerization of the polylactide during melt-processing, followed by devolatilizing the polylactide to remove monomer and water.

Abstract: There is disclosed a resin-coated overlay for bonding to solid substrates, and which imparts improved waterproofing and chemical resistance to the resulting resin-coated overlaid solid substrate. Depending upon the desired end use of resin-coated overlaid solid substrate, the resin-coating may be modified to impart desirable surface features and/or characteristics. For example, additives such as waxes, oils, silicones, fluorocarbons and fatty acid compounds may be used to promote the release of concrete from forms made of solid substrates overlaid with the resin-coated overlays of the present invention. Moreover, resin-coated overlaid solid substrates may be produced having a surface which is suitable for painting and which accepts application of various tape products. Other modifications are disclosed which can be used to gain desirable cure speed, cost, and chemical/mechanical properties in the resin-coating.

Abstract: Wet-like cleaning wipes and similar articles that are particularly useful in removing perianal soils. These wipes comprise a carrier substrate such as tissue paper web and a emulsion applied to the substrate, wherein the emulsion comprises a continuous external lipid phase and a dispersed internal polar phase (e.g., water). The continuous external lipid phase of this emulsion is sufficiently brittle that it ruptures when subjected to low shear during use to release the dispersed internal polar phase.

Abstract: A lactide polymer coating resulting in a strong, repulpable, high gloss, paper coating. The lactide polymer comprises a plurality of poly(lactide) polymer chains, residual lactide in concentration of less than about 5 percent and water in concentration of less than about 2000 parts-per-million. A process for coating paper with the lactide polymer composition is also disclosed.

Abstract: Recyclable and compostable coated paper stock comprising a substrate coated on at least one surface with a primer coat and a top coat both of which are water based dispersions. The primer coat comprises a water based dispersion of a polymer selected from the group comprising acrylic polymers, acrylic copolymers, polyvinyl acetate, polyvinyl alcohol, poly-ethylene vinyl acetate, poly-ethylene vinyl chloride, styrene butadiene copolymers, polyvinylidiene chloride or starch. The top coat comprises a water based dispersion of a polymer selected from the group comprising acrylic polymers, acrylic copolymers, styrene butadiene copolymers or polyvinylidiene chloride. In another embodiment the top coat further includes a wax component comprising 15-90 wt. % of the polymer and 5-85 wt. % of the wax. The substrate is coated with a primer coat prior to the application of the top coat to seal the substrate surface.

Abstract: Disposable paper products, such as paper toweling, are provided with an indicator means which is disposed on said disposable paper product in a discontinuous or combination discontinuous/continuous pattern. The indicator means gives a visually recognizable signal to a user that desirable properties of the disposable paper product are maintained, even after the disposable paper product has become wetted with a substantially transparent aqueous liquid. The wet gray scale difference for the disposable paper product of the present invention is at least about 64 gray scale units when the disposable paper product is wetted with a substantially transparent aqueous liquid.

Abstract: The present invention is a ceramic matrix composite/organic matrix composite hybrid fire shield and the methods and processes for fabricating such a hybrid fire shield. The hybrid fire shield is comprised of an organic matrix composite substrate co-bonded with a cured-ceramic matrix composite layer made of a plurality of cured-ceramic matrix composite plies. First, the surface of the organic matrix composite is appropriately prepared to prevent delamination and enable proper bonding between the surface and the ceramic matrix composite layer. Second, the ceramic matrix composite layer is applied to the surface of the organic matrix composite. Next, the organic matrix composite with the applied ceramic matrix composite layer is processed to produce a co-bonded hybrid structure. The ceramic matrix composite layer is intended to be in direct contact with heat and flames. During impingement of the flames and heat, the cured-CMC layer pyrolyzes and converts from a polymeric to a ceramic composite material.

Abstract: A packing paper for baker's yeast, which is constituted by laminating, on one side of a base paper, at least a printing layer and a wax layer in this order and which has a carbon dioxide permeability of 400-2,000 cm.sup.3 /m.sup.2 .multidot.24 h.multidot.atm., an oxygen permeability of 100-600 cm.sup.3 /m.sup.2 .multidot.24 h.multidot.atm. and a moisture permeability of 50 g/m.sup.2 .multidot.24 h or less.

Abstract: Recyclable paper stock comprising a substrate coated on at least one surface with a water based emulsion coating. The water based emulsion coating comprises 20-90 dry wt. % of an acrylic-styrene copolymer and 5-70 dry wt. % of a wax. In another embodiment a second water based emulsion coating comprised of an acrylic-styrene copolymer is coated on the substrate surface opposite the initial water based emulsion coating. The substrate may also be coated with a primer coat prior to the application of the water based emulsion coatings to seal the substrate surface. The invention also includes processes for making and using the invented acrylic coated paper stocks.

Abstract: A lactide polymer composition combining compositional and purity limitations and catalyst optimization or addition of stabilizing agents resulting in a melt-stable polymer is disclosed. The melt-stable lactide polymer comprises a plurality of polylactide polymer chains, residual lactide in concentration of less than 2 percent and water in concentration of less than 1000 parts-per-million. A stabilizing agent in an amount sufficient to reduce depolymerization of the lactide polymer during melt-processing or alternatively, control of catalyst level at a molar ratio of monomer to catalyst greater than 3000:1 is also included in the melt-stable composition. A process for manufacture of a melt-stable lactide polymer composition includes polymerizing a lactide mixture and adding stabilizing agents sufficient to reduce depolymerization of the polylactide during melt-processing, followed by devolatilizing the polylactide to remove monomer and water.

Abstract: A recyclable double-faced liner bard, the board having a top layer, a medium corrugated layer, and a bottom layer, the top layer having a coating formed from an aqueous composition comprising (A) an emulsion of a curable butadience-styrene copolymer and (B) TiO.sub.2, the medium layer having a coating formed from an aqueous composition containing an emulsion of wax particles and a binder (preferably sodium alginate); and the bottom layer having a coating formed from an aqueous composition comprising about 10 to 85 percent by weight of a liquid curable styrene-butadiene copolymer (or a carboxylated copolymer) and wax.

Abstract: A lotion composition for imparting a soft, lubricious, lotion-like feel when applied to tissue paper in amounts as low as from about 5 to about 15% by weight, and tissue paper treated with such lotion compositions are disclosed. The lotion composition comprises plastic or fluid emollient such as petrolatum, or a mixture of petrolatum with alkyl ethoxylate emollient, an immobilizing agent such as a fatty alcohol or fatty acid to immobilize the emoilient on the surface of the tissue paper web and optionally a hydrophilic surfactant to improve wettability when applied to toilet tissue. Because less lotion is required to impart the desired soft, lotion-like feel benefits, detrimental effects on the tensile strength and caliper of the lotioned paper are minimized or avoided.

Abstract: A composition suitable for use in making water-resistant gypsum products is provided. The composition is an aqueous emulsion comprising water, a paraffinic hydrocarbon wax, a Montan wax, an alkali metal or ammonium hydroxide in an amount sufficient to at least partially saponify the Montan wax, an emulsifier and a dispersant.

Abstract: The present invention relates to a transfer paper for transferring colored xerocopy prints to textile substrates and to a process for the production of prints, in particular produced by xerocopy, on textiles, in which a layer of plastic on a carrier paper is first printed on and is transferred to the textile under the action of heat, the print being produced on the carrier paper with a coating comprising a melamine-formaldehyde resin esterified with methanol, a polyurethane and an acrylic acid ester/acrylic acid copolymer.

Abstract: Disclosed herein is recording paper suitable for use in recording making use of a water-based recording liquid containing a dye which varies from water-soluble to water-insoluble according to the change of pH, wherein the recording paper is neutral or alkaline, and the surface pH of the paper is adjusted to a value not higher than the pH at which the dye turns water-insoluble.

Abstract: The specification discloses paperboard having a water-repellant coating which includes a polymer matrix/wax mixture and is applied to the paperboard as an aqueous formulation. The polymer matrix includes polymer chains which are ionically cross-linked through pendant carboxylic acid groups to provide, together with the wax, a substantially continuous, water-repellant film which more readily breaks down under the alkaline conditions of repulping. The coated board also exhibits improved release characteristics and resistance to blocking, and is particularly well-suited in corrugated box constructions used in shipping containers for perishable food items such as meats, poultry, fishery products, fruits and vegetables.

Abstract: Clothing garments and other articles include an elastic laminated sheet having the properties of stretchability and recoverability. The elastic laminated sheet is formed from a nonwoven fibrous web and an elastomeric film laminated to at least one entire web surface. The laminate is incrementally stretched along lines substantially uniformly across its length and width and throughout its depth to form a stretchable and recoverable composite. The elastic laminated sheet is uniquely suited for use in athletic and active wear garments. The composite is also useful for single use or throw away clothing articles such as medical or surgical garments, throw away bathing suits, underpants, undershirts, and garments used in the handling of hazardous or waste materials.

Abstract: An optical effect material used for making shredded, flaked, die-cut and sheets of decorative materials. The optical effect material comprises an iridescent sheet and a light transmitting material connected together. Methods for using an optical effect material.

Abstract: A nonwoven fabric comprised of a lactide polymer. The lactide polymer comprises a plurality of poly(lactide) polymer chains, residual lactide in concentration of less than about 2 percent and water in concentration of less than about 2000 parts-per-million. A process for manufacturing a nonwoven fabric with the lactide polymer composition is also disclosed.

Abstract: The invention relates to the lacquering of polar film substrates with a coating system consisting of several components, the single application of material resulting in a multilayer structure of the lacquer coat. The coating system is preferably aqueous and free from organohalogen and results in an improved barrier action of the films against water vapor.

Abstract: A web or sheet product is provided which is coated on at least a portion of its surface with a bond-enabling material for adhering toner particles, on the surface of the sheet. The sheet product can be used as a mailer or confidential form which is sealed using toner particles as the adhesive. The bond-enabling material may be a polymer which is coated on the sheet as a liquid and then cured to form a film on the surface of the sheet. The bond-enabling material is resistant to melting or degrading when exposed to temperatures used for fusing toner particles, and additionally may act as a tie coat to enhance the adhesion of toner particles to the surface of the sheet. The bond-enabling material may be coated on the peripheral edges of the sheet, and toner particles are printed over the bond-enabling material on the peripheral edges of the sheet. The sheet is folded and sealed by the application of heat and pressure to the edges of the sheet.

Abstract: A stack of paper is provided for separating portions produced by a portion control machine. The paper is dispensed from a paper feed system that feeds the bottom-most sheet from the stack along support rails that support opposite edges of the sheet. An integral stiffening strip extends between the opposite side edges of each sheet for stiffening the sheet therebetween and to minimize bowing of the sheet when supported at its opposite side edges. The stiffening strip has an arcuate cross-section, and the stiffening strip includes a rigidifying wax coating that is impregnated in the sheet at least to a greater extent in other areas of the sheet than at the strip. The invention also contemplates a method of fabricating the sheets of paper.

Abstract: The use of C.sub.1 -C.sub.5 alkyl butyrates, d-limonene, ethylene glycol monobutyl ether and C.sub.5 -C.sub.20 petroleum distillates and normal paraffins in place of methyl chloroform (1,1,1-trichloroethane) in conventional waterborne packaging and converting adhesives provides comparable or better adhesive products with reduced environmental and health related problems.

Abstract: Recyclable containers such as corrugated or folding boxes are made from a coated paper or kraft grade sheet including a plastic coating thereon. Aqueous acrylic resin containing compositions can be applied in excess on the paper or kraft grade sheet and the unwanted coating metered and removed by directing a jet of air at the coating. After solidification of the coating, the coated paper or kraft sheets can be incorporated as components of corrugated or folding boxes. Recovery of the unwanted coating permits recycling of the coating component. Corrugated and folding boxes including the components can be recycled by conventional repulping processes. A process of manufacture of the coated sheets is also disclosed.

Abstract: Improved image receiving elements for nonimpact printing comprising a support and an image receiving layer, said image receiving layer comprising a whitening agent and a binder, said binder consisting essentially of 10-25% gelatin and 75-90% water soluble, film forming acrylic polymer are disclosed.

Abstract: A carbon paper includes a film of carbon based hot melt ink coated on one side of a flat sheet of paper. The carbon based hot melt ink includes carbon black and a stearate.

Abstract: The moisture barrier and heat seal properties of wax coatings on packaging materials are improved by blending with the wax from about 5 to 15 percent of a styrene/ethylene-butylene/styrene block copolymer.

Abstract: The invention relates to a method of reducing the water vapor permeability of a sheet of paper, which comprises the step of coating the paper sheet with a film of 5-30 g/sq.m. of a coating medium consisting of a rosin sizing dispersion containing additives improving the film-forming properties of the coating medium, which additives include surfactants and waxes. It also deals with a paper so produced.

Abstract: A lactide polymer composition combining compositional and purity limitations and catalyst optimization or addition of stabilizing agents resulting in a melt-stable polymer is disclosed. The melt-stable lactide polymer comprises a plurality of polylactide polymer chains, residual lactide in concentration of less than 2 percent and water in concentration of less than 1000 parts-per-million. A stabilizing agent in an amount sufficient to reduce depolymerization of the lactide polymer during melt-processing or alternatively, control of catalyst level at a molar ratio of monomer to catalyst greater than 3000:1 is also included in the melt-stable composition. A process for manufacture of a melt-stable lactide polymer composition includes polymerizing a lactide mixture and adding stabilizing agents sufficient to reduce depolymerization of the polylactide during melt-processing, followed by devolatilizing the polylactide to remove monomer and water.

Abstract: A multiple ply tubular core having continuous vapor barrier layers near the inner and outer surfaces of the tube. The vapor barrier layers have overlying and underlying layers comprising fibrous cellulosic material. The tube is stable to dimensional changes caused by absorption or loss of moisture to the atmosphere.

Abstract: Erasable coatings for xerography paper comprise a pigment such as calcium carbonate in a binder such as an aqueous emulsion of an acrylic polymer. The erasability of the coating is improved by replacing at least 15 wt % of the binder with a polyalkane or (preferably) polyalkene wax, such as an aqueous emulsion of a polyolefin.

Abstract: An imagable copy film comprises a film substrate of a thermoplastics polymeric material with a percentage thermal expansion in the film widthwise direction (TD) at 150.degree. C. of 0.01 to 1.0%, and a percentage thermal shrinkage in the film lengthwise direction (MD) at 150.degree. C. of 0.4 to 2.0%. The substrate has a receiving layer on at least one surface thereof, comprising an acrylic and/or methacrylic resin.

Abstract: A panel, and method of making the panel, useful as a water barrier including an intermediate layer of a water-swellable colloidal clay, such as bentonite, sandwiched between two layers of sheet material, such as paperboard, wherein at least one of the sheet material layers has a plurality of spaced apertures, or water channels, extending from the exterior of the panel to the intermediate water-swellable clay layer. The sheet material layer containing water channels includes a coating of a removablel material completely across the water channels in the facing sheet having controlled, predetermined water-solubility so that the intermediate water-swellable clay layer is quickly hydrated after solubilization and removal of the coating material, and to prevent clay hydration during installation, prior to removal of the coating material.

Abstract: A flexible or rigid panel, and method of making the panel, useful as a water barrier including an intermediate layer of a water-swellable colloidal clay, such as pentonite, sandwiched between two layers of sheet material, such as woven or non-woven fabric, or paperboard, wherein at least one one of the sheet material layers has a water-soluble coating material covering substantially the entire outer surface of the sheet material layer. The water-soluble coating is a material that dissolves upon a predetermined water contact period, having a controlled, predetermined water-solubility so that the intermediate water-swellable clay layer is protected against hydration during installation.

Abstract: A wrapping material comprising a paper-based substrate and a coating comprising a polypropylene-based wax having a molecular weight between approximately 1000 to 3000 provided on the substrate for heating and storage of articles of consumption.

Abstract: The sheet material of the present invention comprises a base sheet which is formed of at least one sheet of paper or non-woven fabric sheet and a plural number of threads embedded within the base sheet, interposed between the sheets of paper or non-woven fabric sheets or bonded to the surface of the base sheet. Accordingly, the sheet material has a high strength even when the base sheet is formed of inexpensive and disposable paper. The base sheet can be impregnated with a flame retardant agent such as an ammonium phosphate compound, nitrogen-containing compound and sulfur-containing compound to be imparted with good flame retardancy. The sheet material is provided with certain indications such as commerical advertisements so that articles made from the inventive sheet material are commerically advantageous especially when guests of hotels and the like are allowed to take out the articles.

Abstract: A strip or roll of thermal transfer type recording sheet (1a) has a base film (1a) on one side of which a hot melt ink layer (1b) is formed for recording on paper or other surface by thermal transfer. An end mark or marks to be detected optionally for warning the user of the fact that the recording roll is being used up is/are formed adjacent one end of the strip by gravure printing with use of a light-reflective ink. The ink mark or marks produced by gravure printing are of such constant thickness, and with the bounding edges so sharply defined, that they permit positive detection by an optical sensor.For the production of the end marks by gravure printing, a web of base film with the hot melt ink layer formed on one side thereof, with a width several times greater than that of each strip of recording sheet to be manufactured, is fed through a printing unit of a gravure printing section.

Abstract: A glossy laminate is made using highly polished caul plates, the laminate having superior sliding can wear resistance, and without damaging the plates. This result is effected by use of the technology of Scher et al. U.S. Pat. No. 4,255,480; O'Dell et al. U.S. Pat. No. 4,491,137 and 4,567,087; and/or Ungar et al. U.S. Pat. No. 4,713,138, except that the particles size of the grit is maintained at less than 9 micrometers. In this way a glossy laminate is obtained which retains its glossy appearance under normal wear conditions, and without rapid destruction of the expensive polished caul plates.

Abstract: A method of preserving or otherwise reinforcing the thin, pre-existing tissue-like paper patterns used in dressmaking, crafts, and the like, in which a sturdy backing paper is bonded to the thin, pre-existing tissue-like paper pattern pieces allowing the pattern pieces to be reused many times without deterioration, which method may be practiced without extensive commercial equipment.

Abstract: The medium and liners of a water resistant containerboard are each essentially completely impregnated by a liquid water resistant agent which also uniformly coats the surfaces of the medium and liners with a layer sufficiently thick to cover the outer extremities of fibers protruding from such surfaces.The coating and impregnation is accomplished by feeding a flat untreated corrugated containerboard in the direction of its open flutes and in a continuous movement into and out of a hot melt bath of the water resistant agent at a controlled speed sufficient to force the liquid agent through the flutes of the containerboard, so as to assure exposure of all surface portions of the board to the hot melt for the same amount of time at the same temperature conditions.

Abstract: The scuff-resistance and rub-resistance of decorative laminate made using the special paper of Lane et al U.S. Pat. No. 3,798,111 is substantially improved by incorporating in or very near the surface of the decor paper finely divided polyethylene wax having a particle size of 1-30 microns.

Abstract: Wax-base or emollient-base cosmetic compositions may be provided as samples on paper carrying sheets by providing the paper with materials that prevent absorption of oleic materials and providing the cosmetic compositions with a lower sheet that is oleophobic. A binder layer of an oleophilic wax or polymer is used between said paper and the cosmetic composition.

Abstract: Tamper-resistant inner seals that bond firmly to the lips of lidded and capped glass and plastic containers. The innerseals incorporate a metallic foil having a heat sealable adhesive applied to one surface thereof. The heat-sealable adhesive comprises a parafin wax or blend of paraffin wax and microcrystalline wax, polystyrene or derivative thereof, rosin or derivative thereof, and at least one high molecular weight polymeric material selected from the group consisting of ethylene/acrylic acid copolymers, ethylene/vinyl acetate copolymers, ethylene/methacrylate copolymers, and ethylene/vinyl acetate/methacrylic acid terpolymers, and blends thereof.

Abstract: Facings for plastic foamed construction insulation board are made from paper treated with a treatment comprising about 10% to 100% of the weight of the paper including polymer, water repellant, and fire retardant. A reinforcing scrim may be combined with the paper. The treatment is applied to paper, the scrim is combined with the paper, and foam-forming liquids are applied to the paper to form a facing for a plastic foamed construction insulation board.

Abstract: In an article suitable for wiping surfaces which comprises an elongate web substrate impregnated with a liquid composition, migration of the liquid along the length of the substrate is substantially prevented by dividing the substrate into a plurality of individual areas by means of a repeating pattern of liquid-repellent barrier material, for example, wax or certain resins, extending across the whole width of the substrate. This measure prevents fluid loss by capillary action and evaporation when the wet substrate is stored in a dispenser. The wet substrate is preferably used in conjunction with a dispenser having a relatively tight closure, especially one in which the closure is formed by two resilient diaphragms with out-of-register apertures. The wet substrate delivery system may be used, for example, for hand hygiene in hospitals, washrooms or kitchens.

Abstract: A stack of paper is provided for separating portions produced by a portion control machine. The paper is dispensed from a paper feed system that feeds the bottom-most sheet from the stack along support rails that support opposite edges of the sheet. An integral stiffening strip extends between the opposite side edges of each sheet for stiffening the sheet therebetween and to minimize bowing of the sheet when supported at its opposite side edges. The stiffening strip has an arcuate cross-section, and the stiffening strip includes a rigidifying wax coating that is impregnated in the sheet at least to a greater extent in other areas of the sheet than at the strip. The invention also contemplates a method of fabricating the sheets of paper.