Abstract: A leak-proof box formed of three individual blanks having cooperating glue flaps secured at the corners of the box and sealer flaps which provide leak-proof seals at the upper box corners and along the upper ends of the box when a top closure panel is secured into position.

Abstract: 2,6-dialkyl-4-hydroxysulfenyl chlorides are prepared by reacting sulfur chloride with an equimolar amount of a 3,5-dialkyl phenol. The sulfenyl chlorides are novel compounds useful as intermediates in the preparation of other compounds. For example, they can be reduced to form 3,5-dialkyl-4-mercapto phenols, or they can be reacted with phenols to form diaryl sulfides.

Abstract: A process of manufacturing fibers by forming a mixture of a solvent, a polymer and water and flashing the mixture through a nozzle. Water is present as a discontinuous phase in the mixture. The polymer may be any polymer capable of forming fiber, preferably a crystalline or a partially crystalline polymer. The preferred polymers are crystalline or partially crystalline polyolefins, preferably polyethylene or polypropylene. The discrete fibers thus formed can be easily refined and used for making paper webs.

Abstract: A wood chip stream capable of being selectively delaminated is produced by separating a mill-wood chip stream into respective first and second fractions on the basis of wood chip thickness. The first fraction consisting of wood chips having a predetermined thickness, is then pulped by conventional techniques. The wood chips in the second fraction are reduced to said predetermined thickness and are then selectively delaminated by compression means. After being subjected to selective delamination, the delaminated chips are pulped by conventional techniques. Accordingly, a high yield, uniform wood pulp having reduced pulp screen rejects is produced.

Abstract: When 4,4'-dihydroxydiphenyl sulfone is sulfonated to form 3,3'-sulfonylbis(6-hydroxybenzene sulfonic acid), the product can be recovered from the reaction mixture by adding methanol or ethanol and a base to the reaction mixture to selectively precipitate only the disalt of the product. Particularly good results are obtained using sulfolane as a solvent in the sulfonation reaction. The product is useful as a flame retardant additive in polymers and other materials, and is also useful as an additive in boiler water to remove or prevent formation of scale.

Abstract: Tubular multilaminate film having four or more layers can be made byA. combining two or more streams of dissimilar resins to form a first stream of parallel layers of the resins and feeding the stream into a first annular space wherein the stream divides into two substreams which flow laterally in opposite directions about the axis of the space and then join to form a first annular stream in which the layers are coaxial,B. combining two or more other streams of resins to form a second stream of parallel resin layers and feeding the stream into a second annular space which is concentric with the first annular space and wherein the second stream divides into two substreams which flow laterally in opposite directions about the axis of the space and then join to form a second annular stream in which the layers are coaxial, andC. combining the first and second annular streams to form a composite annular stream, andD.

Abstract: Discrete cellulose acetate fibers are produced by flashing an emulsion of cellulose acetate, water, and a solvent which is miscible with the water at the temperature at which the emulsion is flashed. The fibers can be used directly to make paper in accordance with conventional papermaking methods.

Abstract: A process is provided for producing novel convoluted, fiberized substantially nonfibrillated, cellulose fibers and novel sheet products from low moisture-content cellulose pulp, at a high through-put rate, which includes the application of contortive forces to a pulp mass under controlled operating conditions, wherein the feed rate, work space gap, and relative rate of movement of the working elements applying the contortive forces are correlated to maintain the work space filled with fibers under sufficient compression. Sheets made from these fibers exhibit excellent bulk, softness and absorbency properties, even when the formation process is conducted in an aqueous system, and even when substantial compacting forces are applied to the wet web processing.

Abstract: A fiber distribution and depositing apparatus including a forming bell including front and back walls converging and convexly curved in the direction of flow, and side walls connected to the front and back walls to define an open-endedpassageway for fluid-entrained fibers leading from an inlet to an outlet end, said side walls diverging along straight lines in the direction of flow, the cross-sectional area of the passageway along the length thereof remaining substantially constant. The forming bell is disposed between a fiber transport means for directing gaseously-entrained fibers into the bell former inlet at a high velocity and a forming surface positioned adjacent to the outlet of the forming bell and movable along a predetermined direction of movement for receiving the fibers passing through the forming bell passageway.

Abstract: Method of and apparatus for securing the tail or outer terminal convolution of a toilet tissue cant or similar roll product to the convolution immediately subjacent the tail. The tail of the roll product is secured by means of adhesive, and the method includes the step of ejecting a predetermined quantity of adhesive directly onto the subjacent convolution of the roll product while the tail is unwound therefrom. The adhesive is distributed along the length of the cant at spaced apart locations adapted to underlie the rewound tail, thereby allowing the tail to be adhesively secured to the cant. The apparatus includes adhesive applicator structure comprising a plurality of modules each of which is releasably secured to the apparatus so that it can be removed therefrom and replaced as an integer; and each adhesive applicator module includes a plurality of dispensing nozzles operative to eject a measured quantity of adhesive onto a cant underlying the same.

Abstract: A novel process for producing reactive, homogeneous, self-bondable lignocellulose fibers is provided in which individual, separate, lignocellulose fibers are oxidatively modified, employing oxidative reagent system. Pursuant to the teachings of the present invention, the oxidative modification step is conducted in a controlled manner, for example, employing a confrication step, using a liquid-phase reagent system, the subject product fibers, prior to sheet formation, being substantially free of residual oxidative reagent. Sheets are formed from the product fibers on subsequent bonding, employing mild formation conditions, the sheets having improved dry- and wet-strength properties.

Abstract: By coating a paper substrate first with a polyalkyleneimine and then with a polymer containing groups which react chemically with the imino groups of the polyalkyleneimine, a polyolefin can be extruded onto the substrate with good adhesion at temperatures lower than the temperature that would be required to obtain the same degree of adhesion if the polymer containing the reactive groups were not present.

Abstract: A process for producing organic acid esters of cellulose, in an efficient and rapid manner, which includes confricating cellulose in the presence of esterification chemicals, the confrication step providing the major driving force in conducting the esterification reaction.

Abstract: An improved system for directing a web of flexible material to a predetermined location, and more particularly, a system for directing the end or tail of a moving web into threading engagement with rolls forming a nip or the like. In this system a gas such as air is directed through a restricted opening under pressure whereupon it attaches itself to a flow attachment surface due to the "Coanda effect", so that it entrains ambient air and the moving web tail. In a preferred form of the system, after the web tail has been entrained and conveyed a predetermined distance, a substantial portion of the combined flow of the entraining gas and the entrained ambient air are diverted off toward a different direction. At the location of diversion, restraining means is provided for preventing the web tail from moving with such substantial portion of combined flow.

Abstract: A system for treating paper webs and the like including a platen roller and a plurality of support rollers angularly spaced thereabout. At least one of the support rollers is an embossing roller cooperative with the platen roller to emboss a web advanced between the facing juxtaposed surfaces of the platen and embossing rollers. The platen roller is floatingly confined by the support rollers and has no rigidly fixed axis of rotation. Such platen roller is also hollow, including a cylindrical wall component defining a gaseous fluid pressurized chamber. The cylindrical wall component of the roller is of resilient construction and is inwardly depressible by the support rollers against the force of the gaseous pressure fluid acting outwardly thereagainst within the pressurized chamber. The web material to be treated is passed through the nips defined by one or more support rollers, including at least one embossment roller, and the platen roller.

Abstract: A system for directing a web of flexible material to a predetermined location and more particularly to a system for directing the free end or tail of the web into threading engagement with rolls forming a hip or the like. In the system a gas such as air is directed through a restricted opening under pressure whereupon it attaches itself to a flow attachment surface due to the "Coanda effect", is directed to the predetermined location and entrains ambient air. The tail of the web is placed into the path of the moving gas and entrained thereby. The gas is moving at a velocity greater than the velocity of the moving web and thus the web tail is straightened out and directed to the predetermined location.

Abstract: A process of preparing polymer fibers by adiabatically flashing an emulsion or dispersion of water or other suitable nonsolvent in molten polymer, the emulsion or dispersion including an emulsifying agent and a dispersing aid, at an elevated temperature and pressure through a narrow orifice into a region of reduced temperature and pressure. The water or other nonsolvent is present in an amount effective, in combination with the temperature and pressure employed, to cause the molten polymer to be disrupted and rapidly solidify in the form of high surface area, i.e., at least 1.0 m.sup.2 /gram, discrete fibers. The polymer is preferably a crystalline polymer. The nonsolvent employed should have a boiling point less than the melting point of the polymer, a critical temperature greater than the melting point of the polymer, a heat of vaporization greater than the heat of fusion of the polymer, and is substantially immiscible in the polymer at the temperature of flashing.

Abstract: A bottle carrier case comprises a wall part and a bottle support tray part of moistureproof material fixedly attached together. The wall part is formed of multi-wall panels, and the tray part has upstanding flanges along its edges secured to the wall part between the wall panels. Ledges on the tray part engage lower edges of wall part panels to prevent contact of such edges upon a support surface on which the tray part may be supported thus preventing wicking of moisture on such surface through the wall edges which are preferably of paperboard. Bottle support platforms extend from the top surface of the tray part upon which bottles are supported, leaving shallow recess thereunder to accommodate the tops of bottles, thus permitting cross stacking of cases. Reinforcing ribs are provided about each support platform; and suitable drainage passages and openings are also provided for escape of liquids.

Abstract: A bottle carrier case comprises a wall part and a bottle support tray part of moistureproof material fixedly attached together. The wall part is formed of multi-wall panels, and the tray part has upstanding flanges along its edges secured to the wall part between the wall panels. Ledges on the tray part engage lower edges of wall part panels to prevent contact of such edges upon a support surface on which the tray part may be supported thus preventing wicking of moisture on such surface through the wall edges which are preferably of paperboard. Bottle support platforms extend from the top surface of the tray part upon which bottles are supported, leaving shallow recess thereunder to accommodate the tops of bottles, thus permitting cross stacking of cases. Reinforcing ribs are provided about each support platform; and suitable drainage passages and openings are also provided for escape of liquids.

Abstract: Method of and apparatus for securing the unaffixed tail portion of a roll product to a convolution thereof underlying said tail portion wherein the completed roll product is provided with a manually graspable fold on the tail portion which is releasably secured to the underlying roll product convolution as by means of adhesive. Apparatus structure and method steps are provided whereby the tail portion of the roll product is positioned so that the free end thereof is spaced from a wound portion of the roll product. A fold is then provided in the roll product tail portion and a quantity of adhesive is applied to the roll product at a predetermined location thereon. The tail portion is then wound about the roll product wound portion and the fold is secured to the roll product convolution underlying same with said adhesive. A completed roll product is thus formed comprising an elongated sheet of flexible material wound to provide a plurality of convolutions including the outer tail portion convolution.