Abstract: There is disclosed a method for the imprinting and decorating rotomolded products. The method comprises the application to the interior surfaces of the mold of a viscous suspension of pigment in a preselected pattern. The suspension is applied to the mold surface in an oil carrier using a vegetable, animal or mineral oil that is inert under the molding conditions and that has a sufficient viscosity at the molding conditions to maintain the film on the mold surfaces. The pattern of the pigment suspension is applied by spraying, brushing, screen printing and the like and, after its application, the conventional rotomolding can be practiced. In this method, the powdered plastic, typically high density polyethylene, in powder form is charged to the mold, the mold is closed and placed in an oven heated to from 500.degree. F. to about 800.degree. F.

Abstract: A mould for producing a decorated article has a base part with a mould cavity and a lid part co-operating with but being movable away from the base part, the surface of the lid part facing the base part being substantially planar or part-cylindrical and extending beyond the wall of the base part. The wall of the base part preferably has a knife edge for engagement with the lid part. The method of producing the article comprises the steps of locating in a predetermined position on the lid part a carrier having ink thereon, charging the base part with plastics material, locating the lid part in a predetermined position on the base part so that the carrier extends beyond the co-operating wall of the base part, and rotationally moulding the article.

Abstract: The process for forming simulated marble disclosed in U.S. Pat. No. 3,773,886 is significantly improved by applying the spatter backing composition sequentially in a plurality of superimposed layers, which are respectively graduated stepwise in surface coverage from about 20% coverage in the first, applied directly over the veining composition, up to a total surface coverage of about 80%, except on vertical or steeply sloping surfaces of articles such as bathroom fixtures where the surface coverage is between about 40% and 50%. This results in a rich and variegated depth of field and a muting of the veining and produces a product that more nearly simulates natural marble than is true of the previously patented process.

Abstract: The invention comprises a method and apparatus for producing extruded polymer products with a plurality of longitudinal stripes in the exterior surface thereof, and is particularly applicable to producing coated cable with color-coded stripes in the exterior surface thereof that are used for identification purposes. A novel dispensing ring along with spacer rings are incorporated into the head of a conventional extruder to produce the striped--extruded product.

Abstract: An improved method for the manufacture of simulated marble and onyx products is disclosed. The process comprises the steps of applying a substantially clear coating to a mold, applying a first layer of a mixture of polyester resin and filler over the coating, forming readily visible striations in the first layer of resin and filler, applying a layer of glass fibers thereover, applying a second layer of polyester resin and filler over the layer of glass fibers and permitting the various layers to completely cure so as to form the final product.

Abstract: This invention relates to the production of tubular articles, made from synthetic thermoplastic materials, which resemble wood, rattan, bamboo, cane, reed, wicker, reed, rush, and similar natural materials, and also to the production of furniture, structures, and every kind of ornament in general employing thermoplastic materials which replace the natural materials mentioned above, coloring and veining such thermoplastic materials, and also joining and securing by means of ties made from rigid, semi-rigid or plastified polyvinyl the natural and artificial materials above mentioned, for the purpose of assembling furniture and structures in general.

Abstract: A pneumatic tire casing have at least one sidewall ornamental with patterns being made of an elastomer of a color different from that of the sidewall which covers the carcase of the tire, by compelling during molding and vulcanization of the tire a thin layer of elastomer of a color different from that of the sidewall into the width of the latter, so as to obtain that said layer becomes arranged at the bottom of a recess formed in a part of the outer surface of the tire casing.

Abstract: A liquid component can be introduced into a detergent bar by injecting liquid within or immediately downstream of a multi-apertured plate positioned before the compression cone of an extruder. The method can be used to produce marbled bars with the aid of a colored liquid and is described in U.K. Pat. No. 1,387,567.When a double extruder is used together with a common compression cone the injected liquid becomes unevenly distributed within the detergent. Even distribution of the liquid as striations is achieved by use of a partition in the cone to ensure each detergent stream is subjected to separate compression during movement down the cone. The partition extends to the final extrusion plate; the velocities of the two streams are equalized by having a common extrusion volume between after the two screw extruders.

Abstract: A method wherein an article is molded of a heat-fusing material or plastisol in a mold having first and second groups of liquid passages disposed adjacent the mold surface for controlling the temperature over respective first and second areas of the mold surface. The mold is supported for rotation about an axis by a stationary pedestal. A movable module supports plastisol storage tanks, heat exchangers, valves, conduits, etc., for supplying the plastisol to the mold. The movable module also supports a dump tank which is disposed beneath the mold for receiving and retrieving the liquid plastisol which is emptied or dumped from the mold when it is rotated to an inverted position. There is included first and second liquid circuits including a pump and heat exchanger for supplying liquid at different temperatures to the passages associated with the mold.

Abstract: A method for making a decorative plate used in a building characterized by making a transfer sheet by applying a primer layer comprising a water-soluble binder to the surface of a synthetic resin sheet, printing a pattern comprising a coloring agent and a binder, at least one of which is water-soluble, on the primer layer, making a mold for a slip casting having the pattern layer on the inside surface by shaping the transfer sheet with the surface of the pattern layer upward, pouring a mixture comprising a hydraulic material and water into the mold, hardening the mixture, and stripping the synthetic resin sheet from the resulting decorative plate produced.

Abstract: A process of inlaying a design in molded simulated marble or the like comprising the steps of applying a release coating to the inner bottom surface of a mold, applying a transparent gel coat on said release coating, smoothing a piece of porous flexible sheet material bearing the design on one face thereof on the gel coat in the mold to conform to the surface of the gel coat with the one face of the piece of cloth bearing the design toward the gel coat, and casting a hardenable marble mix in the mold over the piece of cloth. The marble mix is then allowed to harden for removal of the resultant simulated marble slab from the mold, the piece of sheet material being embedded in the slab with the design viewable through the transparent gel coat.

Abstract: A system for producing decorative plates for photoprinting includes forming variously colored translucent wax layers into a laminar bar from which transverse thin sections are cut and mosaicked edge-to-edge on a transparent support, back-lighted and photographed to produce a positive transparency; both pre-sectioning and post sectioning distortions are employed and a matching "open face" disposition pattern provides symmetry.

Abstract: A method for the production of multi-color striped pieces of soap by continuously extruding two strands of colored soap, passing said two strands of colored soap through a die orifice whereby a single strand of parallel stripes is formed having a varied colored aspect in cross-section, passing said single strand through a static mixer having a different configuration from said die orifice, cutting said strand and recovering multi-color striped pieces of soap, as well as the apparatus.

Abstract: Process for producing a molding compound with a pattern which comprises the steps of:(a) preparing a plurality of unsaturated polyester resin compositions of different color tones;(b) uniting the plural resin compositions after at least either one in each pair of the adjacent compositions to be united has been thickened; and(c) thickening all of the united resin compositions to form a solid or semi-solid molding composition.

Abstract: The method and apparatus for making concrete brick in a manner such that at least both elongated sides of the brick have an antique appearance. In the method for making the concrete brick, coloring material is spread on a pallet after which a plurality of concrete bricks are molded with their side faces engaging the material on the pallet. The moisture in the bricks wets the material and causes such material to adhere to the bricks, such coloring material imparting a mottled effect to the brick. Additional coloring material is applied to the uppermost side of the bricks and is smeared or streaked by a brush or roller. Thereafter the pallet is moved to another area where the bricks are cured and stored.In the apparatus a first hopper is provided which discharges coloring material onto an empty pallet that passes below the same. The pallet is moved into a concrete brick-making machine where a plurality of bricks are formed on their sides with the lowermost side in engagement with the coloring material.

Abstract: A shaped washing agent based on colored soaps and/or synthetic detergents comprising a plurality of individual colored particles of soap and/or synthetic detergent having a size range of 1 to 20 millimeters, so distributed that they adjoin one another with sharply defined boundries, said boundries being substantially free of occluded gas, to give at least a mosaic-like appearance to at least part of the surface of said shaped washing agent; and the process of producing said shaped washing agent by compressing the individual particles in the substantial absence of gas between said particles.

Abstract: A liquid component can be introduced into a detergent bar by injecting liquid within or immediately downstream of a multi-apertured plate positioned before the compression cone of an extruder. The method can be used to produce marbled bars with the aid of a colored liquid and is described in UK No. 1387567.When a double extruder is used together with a common compression cone the injected liquid becomes unevenly distributed within the detergent. Even distribution of the liquid as striations is achieved by use of a partition in the cone to ensure each detergent stream is subjected to separate compression during movement down the cone.

Abstract: The apparatus produces pressed cement tiles by forming and pressing the tiles in molds and stripping the pressed tiles from the molds. The stripped tiles are deposited, in superimposed relation, on a stripping tray or "shovel" and the thus-supported tiles are subjected to subsequent treatments. A rotary table or platform carries several molds which are cyclically moved through several stages to form and press the tiles, and the tile receiving tray is positioned at a discharge station to have several pressed tiles stripped from the molds and superimposed in a pile on the tray. Alternatively, an intermediate tray is reciprocable radially between a first position, beneath the stripping element, to receive a pressed tile, and a second position retracted from the rotary platform.

Abstract: Thermoplastic resin is converted to void free billets and preforms, by techniques including: compaction of heated thermoplastic powders: compactionof heated extruded strands: rolling of heated ingots of plastic: simultaneous extrusion and combining of two or more groups of strands: coextrusion of two or more resin formulations: sequential compaction of dual powders: extrusion with differentially heated dies. The billets may be non-homogeneous in response to dielectric heating, to produce controlled temperature zones within the heated polymers, when used as billets and preforms.

Abstract: A decorative coating layer, unified with the succulent and fragile surface of a concrete board, is formed by a method comprising laminating an inorganic and hydraulic coating material on the surface of an unhardened concrete board placed in a mold, and immediately thereafter heat-curing the thus coated concrete board. According to this method, beautifully dressed precast concrete boards can be mass-produced by a shortened process with improved efficiency of operation.

Abstract: Polyurethane pneumatic tires with colored sidewalls are produced by applying one or more elastomeric coatings thereto. A colored polyurethane elastomeric coating may be applied directly to the sidewall, but it may be applied to a primer elastomeric coating which is first applied and the colored coating is applied to it either before or after it is cured. The color of the colored coating may be produced by dyeing or pigmenting.

Abstract: A process for extruding patterned sheets or panels of differently colored thermoplastic synthetic resin compositions which include the steps of distributing additional color compositions outside of an extrusion duct of a basic color composition over a number of individual feed channels and introducing the additional color compositions at right angles to the direction of flow of the basic color composition into the interior of the stream of the basic color composition at locations over the width and thickness in an initial flow zone via said channels.

Abstract: Apparatus for making striped or variegated soap wherein soap of one predominant color is plodded and extruded as a continuous billet of predetermined cross section with fluid of another predominant color being injected into the soap stream through pressure responsive valves in downstream oriented fixed nozzles after it leaves the plodder worm and prior to extrusion.

Abstract: A unitary, three-dimensional flexible shell of plasticized polyvinyl chloride of substantially uniform thickness. The shell is produced by spraying a thin layer of a polyvinyl chloride plastigel comprising a dispersion of polyvinyl chloride in a plasticizer onto the surface of a three-dimensional mold corresponding to the outer face of the shell while the mold surface is maintained between room temperature and 100.degree. C. The plastigel during use has a viscosity of 20,000 to 50,000 cps and at least 110,000 cps after 48 hours rest and contains no particles which are sedimentable at these viscosity levels. The layer of polyvinyl chloride is then heated in order to gel the layer.

Abstract: A transparent game ball particularly useful as a billiard or pool ball is disclosed, along with manufacturing processes and apparatus for producing the ball. The ball includes a weighted opaque object centered within the transparent spherical outer covering of the ball for providing the required weight for the ball as well as a desirable appearance. The transparent portion of the ball is produced bubble free of polyester resin through the use of a special, two-piece mold for forming the entire ball at one time. Into this two-piece mold a centering spider or disk of the same rigid polyester resin is inserted. The spider or disk may be either transparent or opaque, and is used to precisely center the opaque weighted object at the ball's geometric center.

Abstract: Soap worked in a plodder with introduction of a color dye for color striation of the extruded column is extruded through a die plate that has a rectangular opening corresponding to the major face dimensions (length and width) of the product bar so that the extrusion grain is perpendicular to the major faces, and the extruded column is severed at distances equal to the product bar thickness to provide blanks that are pressed in a direction parallel to the extrusion grain to form the product bar. Special locations for color introduction are provided and a unique "carrara" marble effect is produced in the bar.

Abstract: Method of using a tristimulus colorimeter including a modified dual slope integrator digital voltmeter which measures the red, blue and green light reflected from a sample and displays the same in digital form as optical density units. The colorimeter includes a light conducting probe with a diffusing member and a movable collar for blocking ambient light, and a rotating color filter wheel is synchronized with the voltmeter for effecting a continuous update of the data displayed thereby. Moreover, a color averaging method provides for prediction of the ultimate color of a mixture of two differently colored porcelains or the like especially used in the construction of artificial teeth or the like.

Abstract: A method for the production of two-color striped pieces of soap by continuously extruding two strands of colored soap, one strand encompassed by the other strand, passing said two strands of colored soap through a die orifice whereby a single strand of parallel strips is formed having a varied colored aspect in cross-section, cutting said strand and recovering two-color striped pieces of soap; as well as the apparatus and the soap pieces so produced.

Abstract: In manufacture of variegated soap bars, noodles are choke fed into the final plodder through an opening communicating essentially only with a portion of the worm of the plodder which turns downwardly.

Abstract: A decorative synthetic resin sheet having formed on its surface, a three-dimensional multi-colored pattern including protuberances and depressions distinctly defined with a marked difference in elevation therebetween. The sheet has a smooth planar rear surface which ensures good adhesion to the desired surface.

Abstract: Herein disclosed is a molded article of a synthetic resin having on its smooth surface a decorative pattern which is viewable as a stereoscopic image from the outside. The moded article includes a substratum which forms the general structure of the molded article and which is molded of a material consisting essentially of a synthetic resin and a filler. The article further includes a decorative surface layer which is formed on the substratum in a manner to provide a generally smooth finish. This decorative surface layer is composed both of a decorative pattern portion figured by the flow marks inside of the trace of a relief pattern, which has once been formed during the molding process of the article, and of a ground portion. The decorative surface layer is made during the molding process integrally with and of the same material as that of the substratum.

Abstract: Method of making slabs of building material which can be used in place of slabs of compact marble are prepared by lining at least one surface of a mold with bonding material, introducing into the mold pieces of solid material to form an aggregate of individual pieces of said solid material with interstices therebetween, filling these interstices with bonding material which chemically bonds to the bonding material utilized for lining, allowing the bonding material to cure and harden to form a solid block of lined material, removing the solid block of lined material from the mold and slicing said block to desired size.

Abstract: A method of molding plastic layers such as used for table tops and the like in which decorative pattern dividing strips are applied to the mold surface in a support frame. The strips are adhesively secured to the mold surface and then the support frame removed after which the plastic mix is applied.

Abstract: The invention discloses a process of multi-material moulding using a novel material guidance device or transfer plate which also acts as a transport mechanism to guide, from one moulding station, a partially moulded component or article, along a controlled flow path, to another station and to register the said article into the requisite second cavity thereat for subsequent moulding of another mould material. The transport mechanism, on arrival at the second station, may, but need not, be stripped away from the partially moulded component contained thereon, but only after the article is disposed into the registration within a subsequent or second cavity located at the second mould station. Under the preferred embodiment, the transfer plate acts as a core member to the mould of the cavity during at least one moulding step; in its simplest form the transfer plate is flat.

Abstract: The invention relates to a method for the manufacture by injection molding of articles composed of a plurality of layers of at least three distinct materials coated one over the other, the method comprising the steps of successive injection of a measured quantity of a first material adapted to form the skin of the article, a measured quantity of a second material to form the intermediate layer, and a measured quantity of a third material to form the body of the article, the materials being introduced into the mold coaxially so as to give a uniform distribution. The invention is especially applicable to the production of articles in which the external and internal materials are joined together by an intermediate material.

Abstract: A molding system for producing articles of mottled appearance includes a plasticizing unit having an inner bore which communicates with a mold cavity. A feed screw is mounted within the bore and is connected to fluid-actuated motors for rotary and translational movement within the bore. A spreader device is positioned in a heated part of the bore ahead of the feed screw. The screw is rotated to feed and soften molding materials of diverse coloration and is subsequently translated to push the materials through the spreader device such that final plasticization occurs. A bridging conduit is provided between the rotary and translational motors to divert a controlled amount of fluid from the latter to the former during a pushing operation, to rotate the screw forwardly at a controlled rate or to hold pressure on the screw to prevent backward rotation or to limit the amount of backward rotation.

Abstract: A column of striated soap extruding from a plodder nozzle is subjected to torque for obtaining spiral striations in the final soap bar.

Abstract: A process for the production of a marbled or mottled cake or bar, particularly of soap, comprising cutting an extruded rope having axially aligned section of different colors, into blanks of the desired dimension, at an angle .alpha. of 75.degree. to 15.degree. to the axis of said extruded rope, stamp molding said blanks with the direction of stamping at an angle .beta. of from 90.degree. to 30.degree. to the cut surfaces of said blank, and recovering a marbled or mottled cake or bar of soap.

Abstract: A method of embellishing memorial stones and the like wherein a cavity is cut or sandblasted in the stone to produce a decorative design. An epoxy resin base is inserted into the cavity and permitted to set. Decorative glass chips are arranged in a mosaic-like pattern in a resin of similar properties to the base, the mortar, and a bond is formed between the base resin, the mortar resin, and the decorative chips to provide a pattern on the memorial stone.

Abstract: An injection molding nozzle and a method for using the same for the central injection molding of thermoplastic materials consisting of a filling compound of any desired thermoplastic material and a surrounding cover layer consisting of a different thermoplastic composition.

Abstract: A process for molding an article having preselected portions formed of different organic plastic materials is described which comprises (a) positioning at least a first skin material essentially free of reinforcing fillers and at least a first core material containing reinforcing fillers in an elongated heating zone at preselected locations of the materials relative one to the other; (b) heating the materials to a temperature sufficient to melt each of the materials while maintaining said materials at their preselected relative positions; (c) exerting a force against an end of the melted materials; (d) linearly moving the melted material in response to the force through the heating zone and into a mold cavity; and (e) cooling at least the first skin and first core materials in the mold cavity. The process can be employed advantageously to provide substantially distortion free injection molded products having glass fiber filled large thin walled sections.

Abstract: A process for making multicolored soap bars wherein a coloring agent is dispersed in a liquid oil vehicle and introduced into a base soap material before the base soap material is extruded in the form of a continuous log which is subsequently cut and pressed to form a multicolored soap bar.

Abstract: A process for making multicolored soap bars wherein a coloring agent is dispersed in a meltable solid vehicle and introduced into a base soap material as a liquid colored material before the base soap material is extruded in the form of a continuous log which is subsequently cut and pressed to form a multicolored soap bar. The meltable solid material solidifies upon contact with the base soap material to form variegated, striated or marbleized colored regions in the final bar.

Abstract: A method of molding a thin multi-colored disc by injecting, simultaneously or successively, differently colored molding materials between closely-spaced plates. The method can be practiced in a toy to entertain children or for arts and crafts or other purposes.

Abstract: A process for making spectacle frame components having reproducible color patterns by molding components using a polyepoxide, a curing agent therefor and an organic dye of a certain color, which dye is thermally degradable at a temperature between about 140.degree. C. and 250.degree. C. The molded solid component is subjected to differential heating in accordance with a first predetermined pattern to cause exposed portions to undergo a distinct change to a different color. A second dye may also be included that thermally degrades at a different temperature and the component then subjected to a second predetermined pattern at a temperature intermediate of the two degradation temperatures.

Abstract: A method is disclosed for producing synthetic plastic sheet material having a multicolor striated pattern therein. The composite stream containing at least one band of differentially colored material in a matrix resin is passed through a perforated member having apertures therein separated by narrow solid segments which results in some interference with the lineal flow of the composite stream and effects striations of the differentially colored material within the matrix. A screen member supported in a perforated insert is specifically disclosed, and generally the bands of color extend diagonally across the sheet material.

Abstract: A low profile pigmented sheet molding process and product are provided which will produce molded parts with uniform gloss and color even in three-dimensional articles having steep and deep walls.

Abstract: A plasticizing apparatus having a plurality of plasticizing chambers arranged to feed a common outlet consecutively, or concurrently, or serially, the arrangement being such that while one of the chambers is being used to feed the outlet, the other or another chamber can be refilled with material to be plasticized, and can be used to plasticize that material.

Abstract: Button rods are made of different colored resins containing thixotropic agents and having catalyst and promoter agents added to separated portions of each resin so that when the resins are combined their gel time is accelerated. The combined resins are mixed both for mixing purposes and to lower the apparent viscosity, and the resins are fed through nozzles and into an inclined trough. The nozzles are reciprocated in arcs to lay the resins in a zig zag pattern in the trough, and the resins flow from the trough into an inclined casting tube where they quickly attain a relatively high apparent viscosity until they are removed from the tube before completely hard. The rods can then be sliced into button blanks or hardened and ground into beads.

Abstract: An article, such as a door, is made from a colored water-extended thermoplastic polymeric material, and is provided with a decorated pattern by fusion of a surface layer to form a non-cellular layer, the depth of fusion being different in different parts so that the depth of color is correspondingly different. The variation in color intensity provides a decorative pattern, and fusion of the cellular material is effected by pressing with a die in the shape of the desired pattern.