Abstract: A seal construction and rotary processor including the seal construction in which the seal includes nested truncated conical members of thin stiffly-resilient material interposed between relatively rotatable coaxial surfaces with inner edge portions of the members adjacent and in flow resistant relation to one, and outer edge portions adjacent and in flow resistant relation to the other of the surfaces, marginal portions at either the inner or the outer edge portions of the loops being held to enable pressure against the loops to force the outer or inner edges respectively into improved sealing relation to the surface to which they are adjacent.

Abstract: Adhesive composition based on acrylate monomers and a peroxide, together with selected halogenated aliphatic acids, which is storage stable and can be used as an anaerobic adhesive composition and a method of bonding by use of that adhesive to quickly form adhesive bonds to steel, copper, zinc and brass without use of a primer, which bonds do not lead to significant corrosion of the metals.

Abstract: Composite film adhesive including a layer of resin adhesive which is heat activatable for adhesion to plasticized resin and which is resistant to plasticizer migrating from the resin and a layer of phenoxy resin which is in strongly adhesive, overall engagement with the heat activatable resin and has active hydrogens for reaction with free NCO groups of a urethane adhesive to enable strong bonding of the phenoxy resin layer by the urethane adhesive.

Abstract: Frame member and insulated glazing unit including panes of glass held in spaced relation by a separator frame and a novel arrangement of adhesive and sealing material providing substantially continuous direct contact of the frame members with the panes to block passage of gas or vapor to the space between the panes.

Abstract: Method for processing solid and viscous plastic material or polymeric material and the like in which plastic or polymeric material is fed through an inlet into an enclosed passage of which opposed side walls are moving simultaneously toward an outlet and the material is processed and dragged forward by the moving side walls against a channel block and with progressive build up of pressure along said passage for discharging the processed material through the outlet from the enclosed passage. Rotary apparatus for practicing the method includes one or more annular channels having opposed side walls and carried by a driven rotor member for movement relative to a housing of which an annular surface coaxial with the rotor cooperates with the walls of the channel or channels to form an enclosed annular passage or enclosed annular passages.

Abstract: This invention relates to an improved injection foam molding method in which a foamable mixture of molten synthetic polymer resin and a chemical blowing agent in unfoamed condition is injected into a gas-pressurized expandable mold having a mold section movable for expanding the mold cavity to a position in which the surface of that section is in registry to the surface of another mold section, in which process the mold is filled under conditions resisting foaming of the material prior to filling of the mold and a novel controlled time sequence effective to form a fine mold crease line is employed in releasing the gas pressure and expanding the mold to allow foaming of the mixture into conformity with the mold surface.

Abstract: A sound deadener sheet softenable by heat to wilt into conformity and adhesive engagement with a contoured metal surface but resistant to running and flow at higher temperatures comprising a mineral-filled bitumen containing a small amount of vulcanized vegetable oil.

Abstract: Adhesive composition for application in molten condition to cellulosic materials to form adhesive bond and also capable of being dissolved or dispersed in cold water includes a mixture of cold water-insoluble polymeric material having free carboxyl groups and sufficient aliphatic amino alcohol for reaction with those carboxyl groups to promote solubility of the polymeric material in cold water as in a repulping operation.

Abstract: Process for stiffening a selected are of flexible sheet material, particularly a part such as the counter portion of a shoe upper, in which a predetermined quantity of hot molten resin is deposited on the area as a body of substantial thickness, the area is pressed to spread out and adhere the resin as a layer and thereafter the resin is cooled to a stiff resilient condition. The sheet material may be removed from the first pressing operation and subjected to a second pressing or molding operation around a form such as a last. In this second pressing, molten resin which has been squeezed from the area onto the lasting margin, by controlled conditions in the first pressing may be employed as lasting cement by wiping down the lasting margin against the bottom surface of an insole.

Abstract: The improved method of making a self-locking threaded element having a strongly adhered plastic body on its threaded surface providing strong frictional engagement between the element and a mating threaded surface in which fine particles of heat softenable plastic are applied against a heated threaded surface in a plurality of spaced successive portions in time and temperature controlled relation such that a first portion is softened by heat prior to application of a successive portion of the particles to aid in holding particles of successive portions to enable manufacture at a higher rate and/or at lower temperatures than heretofore practicable.

Abstract: Improved apparatus and process for applying locking patches of resilient resin to internally threaded articles such as nuts having openings at both ends of the threaded portions in which apparatus and process, a support and treating member, preferably a rotatable, circular table with edge notches complementary to a portion of the exterior of a threaded article to be treated, receives a succession of threaded articles heated to a temperature above the melting point of the resin to be applied and moves the articles along a path for treatment with the axes of the threaded articles in an up and down position and with the openings at the upper and lower ends of the threaded portions substantially uncovered, conduits on the support and treating member are associated with each threaded article to direct particles of heat fusible resin upwardly through the opening at the lower end of the article against a portion of the threaded surface of the article to form a first deposit of resin on an area of the threaded surfac

Abstract: Stiffening method in which the strength, stiffness and application properties of thermoplastic synthetic polymer resin stiffening material are improved through combination with the resin of controlled proportions of glass microspheres and the composition is applied as a layer in molten condition on the portion of a shoe upper to be stiffened and is hardened by cooling.

Abstract: The method for stiffening a flexible workpiece such as the toe portion of a shoe in which a layer of fast crystallizing linear synthetic polymer resin is deposited in molten condition on a transfer surface member which is at a temperature and has a heat take up capability to bring the resin at its surface to a temperature for rapid crystallization of the resin, the resin layer is pressed between the transfer surface member and the surface of the workpiece within a time after deposition of the resin on the transfer surface member during which at least the exposed surface of the resin layer remains molten for wetting adhesive engagement with the surface of the workpiece and the transfer surface member is separated from the resin layer at a time when at least a surface film of crystallized resin has formed adjacent said transfer surface member.

Abstract: Apparatus and process for applying locking patches of resilient, heat softenable resin to internally threaded articles having openings at both ends, in which the threaded portions of the articles, heated to a temperature above the softening point of the resin to be applied, are moved on a conveyor as a uniform succession at a uniform continuous speed in a path for application of particles of the resin with the openings at the ends of the articles substantially uncovered, a stream of resin particles entrained in a gaseous jet is directed by a resin particle stream guide through the openings in successive moving articles against threaded areas of the articles where the particles adhere and melt to form locking patches, flow of the gaseous jet is controlled relative to movement of a repeating feature of the articles on the conveyor to supply the stream of resin particles when the stream guide is in, and to interrupt the stream of particles when it is out of particle applying relation to the articles, and a sucti

Abstract: Improved process for applying locking patches of resilient resin to internally threaded articles such as nuts having openings at both ends of the threaded portions in which process there is used apparatus including, a support and treating member, preferably a rotatable, circular table with edge notches complementary to a portion of the exterior of a threaded article to be treated, which receives a succession of threaded articles heated to a temperature above the melting point of the resin to be applied and moves the articles along a path for treatment with the axes of the threaded articles in an up and down position and with the openings at the upper and lower ends of the threaded portions substantially uncovered, conduits on the support and treating member are associated with each threaded article to direct particles of heat fusible resin upwardly through the opening at the lower end of the article against a portion of the threaded surface of the article to form a first deposit of resin on an area of the thr

Abstract: A composition based on butyl rubber resins and filler particularly useful for hot melt application as a sealant for combining a plurality of glass panes in an insulating glazing unit in which improved workability in heated condition is secured without adversely affecting its other properties through inclusion of a minor amount of a thermoplastic block copolymer of polystyrene and polybutadiene or polystyrene and polyisoprene.

Abstract: Method for preparing polyurethane resin directly in finely divided form in which method a first reactant for forming the polyurethane is emulsified as fine droplets with the aid of special surfactants and controls in an inert organic liquid medium in which it and polyurethane resin are insoluble, a second reactant also insoluble in the liquid is introduced into the liquid medium and interacted with the droplets of the first reactant to form fine particles of solid polyurethane resin protected from agglomeration by the surfactant, and the particles of polyurethane resin are separated from the liquid medium.

Abstract: Thermoplastic esteramide heterophase copolymer resin including saturated copolyester soft segments chemically joined to copolyamide hard segments, in proportions and copolymerized to an extent to give a melt viscosity, extended tack after melt application and room temperature hardness for use as a hot melt adhesive in the manufacture of shoes.

Abstract: Method of bonding a resin film with three-dimensional patterned surface to sheet metal in which a coating of curing adhesive on the metal surface is partially cured to a firmer condition in an initial heating, the metal and adhesive are cooled to a temperature at which the cure rate is slowed but the adhesive is tacky for adhesive engagement with the resin film, the resin film is pressed against the adhesive and the assembly promptly chilled.

Abstract: The method of stiffening a selected area of a shoe component of flexible sheet material in which a layer of molten synthetic polymeric material is coated on the area to be stiffened, rigid, preferably heat-softenable, granules are applied to the coating layer while the coating material is soft to cause the granules to adhere, and the shoe component is pressed against a second flexible shoe component with the coating and granules between the parts and with the coating in heat softened condition to force the coating material through openings between the granules and into wetting engagement with the second shoe component. The assembled shoe components may then be shaped and the polymeric material cooled to form a layer of hardened polymeric material with the granules locked in it as reinforcing stiffening bodies.