Abstract: The present invention provides a novel edge-laminating apparatus, in which an edge-laminating stream exiting from an edge-laminating flow channel, is driven by flow pressure into an edge of another stream. Also provided is a novel process for forming an edge-laminated stream, and for forming an extruded product.

Abstract: A process of molding a single-piece article by placing a resin body on a divider of a resin supply container containing different resins, fitting the resin supply container against a mold surface, engaging the resin body between the divider and the mold surface defining two discrete mold chambers, rotating the resin supply container and mold surface to contact the different resins against the mold surface, and heating the mold surface to simultaneously set the different resins and the resin body into a single-piece article.

Abstract: Apparatus and a process for manufacturing multiple color thin walled hollow shells for parts such as automobile door panels, controls and instrument panels from dry thermoplastic powders includes a powder box divider to form two or more compartments in a powder charge box and means for joining the chrage box divider end-to-end with a mold separation edge on an open-ended heated mold for separating the mold into two or more sections; each compartment of the charge box has a different color powder. The charge box and mold are joined and then are rotated so that the powder is distributed into each mold section by gravity flow with the powder from each section flowing to the divider which separates the colors so as to form two or more tones on a resulting shell of cured material.

Abstract: A color ringed or rimmed edge intraocular lens for implant in either the anterior chamber, the posterior chamber or the cornea of the eye. The lens has a colorless or clear central region of a material such as polymethylmethacrylate (PMMA) and a peripheral surrounding portion of a dark material such as blue PMMA. Polysulfone can also be utilized. The lens can be fabricated by passing a clear rod of optical quality PMMA through an extrusion orifice and coating the circumference of the rod with a layer of predetermined thickness of colored, preferably blue PMMA or other compatible material. Other methods of fabrication can include the introduction of a suitable dye into the outer regions of the rod, or joining the clear central region to a ring of colored material by thermal adhesive bonding or other known processes.

Abstract: A reinforced concrete wall, such as a road barrier or barricade, has a monolithic surface ornamentation thereon constituted by pigmented cements and grooves simulating mortar joints. In the horizontally oriented top portions of the wall where the pigmented cements are substantially thicker than the layers of pigmented cements monolithically joined to the vertical oriented portions of the wall so that these portions, which are subject to chipping and the like during handling and use will retain their aesthetically pleasing appearance. In the molding process, ribs on the mold surface which will form the grooves have a retardant applied thereto so that the cement forming the mortar joint will set at a slower rate than the rest of the body of the concrete wall and when removed from the mold can be brushed. When the wall is in the form of a road barrier, the ends are provided with a conical projection and a conical recess, respectively, to provide coupling between adjacent wall units.

Abstract: Process designed to obtain a sheet of thermoplastic material containing at least on one side a decoration consisting of parallel stripes of different colors juxtaposed to each other and capable of being thermoformed to produce hollow volumes containing the same initial decoration, characterized in that it consists in extruding simultaneously, through a single multiple duct die, firstly a monochrome basic layer, secondly at least one intermediate decoration layer, formed of longitudinal, juxtaposed stripes of different colors, and lastly at least one upper transparent layer overlapping said intermediate layer, all said layers being combined in a die area as close as possible to its outlet.

Abstract: A system for molding elongated ribbon-like products from thermoplastic materials utilizing a plurality of molds which are moved in tandem along a production line. As the molds are moved along the line at successive stations they are, while open, thermally adjusted to a temperature suitable for forming the product to be molded and then a ribbon of plastic is deposited in them. They are then closed and cooled and reopened and the molded product removed. The system utilizes only enough molding pressure to assure distribution of the plastic to all parts of the mold cavity and shaping of the molded product to the geometric design of the mold. The system includes a transfer means for the molds which returns the emptied molds for recycling through the molding process.

Abstract: An injection molding machine having a movable platen movable between two stationary platens which are fixed respectively to both ends of the tie rods, a rotary table platen provided with said movable platen, an angular indexing device rotating said rotary table platen and indexing angular of rotation of said rotary table platen, a resilient coupling provided in midway of shaft connecting said angular indexing and rotary table platen, a table supporting device supporting said rotary table platen against mold opening force.

Abstract: A taxidermic specimen and a method of formation thereof is disclosed. A preliminary negative mold (28) is formed by applying an alginate material to the jaw structure of the animal carcass. Fibers (50) are disposed within the depressions (30, 32 and 34) to provide tooth stains. Tooth-colored acrylic material is alternately poured in layers into the teeth depressions (30, 32 and 34) of the preliminary mold (28). The hardened acrylic teeth (44, 46, 48) are removed and chamfered around the gingival line (40). The teeth are reinserted into the preliminary mold (28) and covered by palate and gum forming fiberglass. Natural appearing colorations are provided comprising selected colored threads (52) near the surface of the gum structure. The composite tooth, gum and palate structure forms the master mold (54). From the master mold (54) a final rubber production mold is formed which is used to construct additional production taxidermic specimens in the same manner in which the master mold (54) was formed.

Abstract: A mold for stepwise molding by two or more injection shots of different materials or colors comprises fixed and movable mold halves and a slide core which combinedly form a first cavity and, with the slide core moved down, a second cavity for the shots to form a molded article of unitary structure, such as a housing section of an audio cassette tape with a see-through window. Ribs are formed on the slide core along its peripheries, and a land projection is formed on the inner side of the fixed mold half to be in contact with the molding surface of the slide core recessed with respect to the ribs. The inner peripheral wall faces of the ribs and the peripheral wall faces of the land projection of the fixed mold half are spaced apart to remain out of contact during mold clamping.

Abstract: In a molding machine wherein in molding a molded article, the molded article is molded into a so-called sandwich shape in which the central portion of the molded article is molded with core layer resin and the outer surface of the core layer is wrapped with skin layer resin, a valve for changing over and injecting the resins from a first injection cylinder for injecting the core layer resin and a second injection cylinder for injecting the skin layer resin is substantially cylindrical, a cut-away portion for changing over and distributing the resins is formed in the central portion of the valve, and sandwich molding is accomplished with the opening-closing of the cut-away portion and each passageway being effected by rotation of the valve.

Abstract: A method of supplying a thermoplastic material to a molding machine for molding the same into a desired formation on slide fastener tapes is disclosed, whereby a composite plastic material, consisting in such a predetermined ratio of a fresh supply of material and removed runners and sprues, is fed so as to enable homogeneous color distribution of the resulting element chain on the fastener.

Abstract: Synthetic resin plates having an irregular flow pattern of different colors are prepared by continuously polymerizing polymerizable materials in a polymerization zone defined by confronting surfaces of two confronting and running endless belts and gaskets held between the confronting surfaces of the belts. Polymerizable materials of different colors are supplied in the polymerizable material supply region close to the upstream end of the polymerization zone by a plurality of supply means, each of which includes at least one polymerizable material supply opening to the polymerizable material supply region. The supply means are arranged in such a manner that they are spaced from one another in the direction of travel of the belts.

Abstract: Apparatus and a process for manufacturing multiple color thin-walled hollow sheels for parts such as automobile door panels, consoles and instrument panels from dry thermoplastic plastisol includes a supply box with a divider to form two or more compartments in the box. The box divider cooperates with selectively positioned split mold parts defining a separation in an open-ended heated mold for separating the mold into two or more sections. Complementary open ends of the charge box and mold are joined. Then the apparatus is rotated so that the powder is distributed into each mold section by gravity flow with the powder from each section flowing to the divider which separates the colors so as to form two or more tones on a resultant shell of cured material; thereafter the powder box is removed and the split mold parts are joined to clamp cast shell segments for fusion at a joint line.

Abstract: A method of forming simulated marble articles from materials polymerizable within a cell or mould characterized in that the mould is filled under conditions in which the polymerizable materials are introduced as streams following the flow path into the cell or mould and the contents are polymerized with the cell or mould disposed so that the flow lines are on a height gradient relative to each other. Limited intermixing of the compositions during the initial stages of the curing process produce an attractive simulated marble effect. The mould may be filled so that the flow lines are disposed in a near vertical position and then rotated so that they are in a near horizontal position with adjacent flow lines on a near vertical height gradient.

Abstract: The invention facilitates application of light colored inscriptions of arbitrary size on a dark colored key body, the key body consists of a dark colored base component and a light colored component which bears the inscription, which are produced by two-color injection. The light colored component which bears the inscription is then darkened by thermal diffusion, with the exception of the inscription.

Abstract: A process of making a full life size artificial rock formation of photocopy exactness from a natural rock formation surface is disclosed herein. A plurality of coats of latex is applied over the natural rock surface and allowed to dry thus forming a mask having all the natural cracks and crevices of the natural rock surface. This mask or liner is held in a fiberglass mold and a vacuum is applied to the inner surface of said liner causing all the cracks and crevices to open up. Cement is applied to the outer surface of the liner filling all the cracks and crevices. When the liner is removed the artificial surface resembles the natural rock surface in photocopy exactness.

Abstract: Method and apparatus for manufacturing a food product in which an edible filling material is completely enclosed in an edible coating material, comprising outer, intermediate and inner spaced apart concentrically arranged extrusion conduits; means for extruding the coating material continuously through the channel between the outer and intermediate conduits to form a tube of coating; means for extruding the filling material intermittently through the channel between the intermediate and inner conduits so that it forms a filling within the tube of coating; means for mechanically isolating the filling material, on interruption of extrusion, from the filling within the tube of coating; means for extruding further coating material alternately to the extrusion of the filling material, through the inner conduit so that it flows within the tube of coating at the rear end of the filling; and means for cutting the extruded tube cross-sectionally between positions where filling is located.

Abstract: An information carrier such as a push-button switch consists of a silicone elastomer. The information carrier has an a label-carrying surface in which there is embedded a printing ink having a vulcanizing mechanism similar to that of the silicone elastomer. The ink and silicone elastomer are vulcanized to form the ink into a pattern on the label-carrying surface. The label-carrying surface having the pattern embedded therein constitutes a non-glossy surface of a predetermined roughness. Also disclosed are a method and apparatus for manufacturing the information carrier by printing the printing ink on a transfer plate, which has a roughness of several microns, followed by half vulcanization to embed a pattern which is manifested by the printing ink into the label-carrying surface of the information carrier.

Abstract: A synthetic resin plate having at least two different colors is prepared by a process having the steps of supplying at least two polymerizable liquid materials differing in the color from at least two inlets, passing them through at least two groups of flow paths alternately arranged, extruding and injecting the polymerizable liquid materials into a polymerization apparatus, polymerizing the liquid materials, and withdrawing a plate-shaped product having a striped pattern extending from the surface to the interior or a plate-shaped product having said striped pattern in which the boundary area between the adjacent stripe lines of different colors is gradated.

Abstract: A mold for preparing a plug suitable for making a dental shade sample having a layer of porcelain material having a known thickness; the mold comprises: a base with a cylinder extending upwardly therefrom; a planar platform surface at the upper end of the cylinder, the cylinder being threaded in a region below the platform surface; and a hollow annular housing defining an internal cylindrical surface sized and cooperatively threaded to engage the cylinder threads. Rotation of the housing relative to the cylinder moves the housing vertically and continuously varies the known depth of the cavity between the housing and the platform surface. By proper positioning of the housing and cylinder a known desired cavity depth is obtained and filled with porcelain-forming material to mold a first shade layer. The housing is rotated to increase the cavity depth by known desired increments for subsequent layers.

Abstract: A process is described of coating the interior wall of a mould heated at a temperature of 130.degree. to 180.degree. C. with a dry powder of an aminoplast or phenoplast resin, in particular melamine-formaldehyde, having a grain size distribution of 10 to 100.mu., whose particles gel in contact with the walls without running, then introducing into the mould a moulding composition comprising a thermosetting resin, mineral fillers and a catalyst, hardening and polymerizing by heat and pressure the contents of the mould and releasing the article whose coating is solidly anchored in the moulding composition.Sanitary ware articles of polyester-based substrate and melamine-formaldehyde-based coating, and refrigerator boxes consisting of polyurethane foam substrate and melamine-formaldehyde coating can be produced.

Abstract: Apparatus and a process for manufacturing multiple color thin walled hollow shells for parts such as automobile door panels, controls and instrument panels from thermoplastic plastisol includes a plastisol box divider to form two or more compartments in a plastisol charge box and means for joining the charge box divider end-to-end with a mold separation edge on an open-ended heated mold for separating the mold into two or more sections; each compartment of the charge box has a different color plastisol. The charge box and mold are joined and then are rotated so that the plastisol is distributed into each mold section by gravity flow with the plastisol from each section flowing to the divider which separates the colors so as to form two or more tones on a resultant shell of cured material.

Abstract: Process and apparatus for producing a sheet or film exhibiting a colored band of varying color intensity, with an extruder for melting a stream of a thermoplastic synthetic resin and with a slot die tool (e.g.

Abstract: A process of decorating molded, cultured-marble products comprising the steps of applying a release coating to the inner bottom surface of a mold, applying a hardenable transparent acrylic gel on the release coating hardening the gel, hand-painting, with an acrylic paint, a colorful design on the surface of the hardened gel coat, casting a hardenable cultured marble mix in the mold over the gel coat and painted design and allowing the marble mix to harden before removing the resultant decorated cultured marble molding from the mold.

Abstract: A pearlized plastics mosaic article having a ceramic glaze thereover is made in a mold having a deep etched pattern of engravings to provide a relief casting having a pattern of grooves simulating the look of mosaic tiles. An ornamental mosaic finish is obtained by casting mosaic and background layers of thermoset materials. For contrast and definition of the mosaic ornamentation, the thermoset layers are cast of materials having different color pigmentations and material textures. In the molding process, the first thermoset layer is cast to a depth which is less than the height of mold engravings. After curing the first layer to a gel consistency, the second background layer of thermoset material is cast in overlying relation to the first thermoset layer and mold engravings. The thermoset materials are then cured and demolded to provide an integral mosaic casting.

Abstract: There is disclosed a method for imparting a decorative or printed pattern to the surface of rotationally molded products during their manufacture. In this method, the decorative patterns are formed on a sheet film transfer as a coating of pigments dispersed in a hydrocarbon wax which overlays a release agent, such as a silicone coating on the sheet film. The decorative wax pattern is applied to a preselected area of an inside wall of the rotational molding cavity by positioning the transfer against the surface of the wall and burnishing the pattern onto the interior wall of the mold cavity. Thereafter, the particulate molding resin is charged to the cavity and the product is molded in a conventional procedure, resulting in transfer of the pattern as pigments incorporated into the resin, with most of the wax surfacing and being excluded from the product.

Abstract: In the manufacture of a molded article from a ceramic material, such as a porcelain substance, in which a design or decorative substance is applied to at least one of the surfaces of the article, a certain amount of the ceramic material is introduced into a mold cavity formed between mold parts. The material is distributed in the cavity and then is pressed. The decorative substance is applied to the surface of at least one of the mold parts before the parts are closed to form the mold cavity. The decorative substance is then transferred to the molded article during the pressing operation.

Abstract: A printing ink is vulcanized on the top surface of an operation indicating member consisting of a silicone-type elastomer and is integrated with the elastomer to form a character of a predetermined shape on the top surface. The printing ink consists essentially of a material which exhibits a vulcanizing mechanism similar to that of the silicon-type elastomer. In manufacturing the operation indicating member, the predetermined character is formed by means of the printing ink on a transfer plate disposed within a mold for molding the body of the indicating member. Next, the silicon-type elastomer is introduced into the mold and heated under elevated pressure to vulcanize and integrate the character on the transfer plate and the silicone-type elastomer, whereby the character is integrally embedded in the top surface of the operation indicating member formed in the mold.

Abstract: A slot die apparatus for the coextrusion of an endless sheet having a thickness of about 0.1-5 mm with an optionally dyed edge strip made from a narrower, optionally colored, melt stream of a width of about 100-500 mm and from a broader melt stream of a width of about 1,000-3,000 mm of a thermoplastic synthetic resin is provided by means of two parallel-operating extruders and associated melt pumps, with merging of the two melt streams. The apparatus is also provided by flanging together, by means of a flange, two dies at their end faces, these dies having identical cross sections and a corresponding width, comprising a spreader block, deckle, bottom lip, and top lip, and a flow channel made up from these components.

Abstract: A plodder outlet assembly for producing a bicolored detergent bar comprising a first plodder outlet for delivering a first mass of detergent material to a compaction chamber. Four pipes are provided for delivering a second detergent material to the compaction chamber. These pipes extend into the compaction chamber and abut the inner walls thereof leaving a cruciform space for the first detergent material. The compaction chamber is slightly conical in configuration for compaction purposes and so that material flowing beyond the ends of the pipes will envelope the second detergent material.

Abstract: Marbleized cookie dough pieces are formed by independently feeding different color doughs into a common extrusion die, in which a rotating impeller is located. The impeller lards portions of each dough into the flow of the other to produce a spiral pattern in the extrudate which is sliced to produce spirally marbleized dough pieces.

Abstract: A plastic molding, such as a key top with signs or letters appearing on its face has a first part molding having projections formed at its top defining an enclosed area. A second part molding of a color other than that of the first part molding is adhered to the surface of the first part molding in a manner permitting the ends of the projections to be exposed. The first part molding has a plurality of through holes formed in mesh configuration. At least one of the projections corresponds to at least one of the through holes. The second part molding is adhered to the first part molding to be buried in the plastic material of the second part molding. Part of the plastic material of the first part molding is filled into the enclosed area via the through holes. In a method of making such plastic molding, an inner member of the mold die may be used commonly regardless of the sign or letter provided in the plastic molding.

Abstract: Novel thin flexible decorative colored cementitious veneers of about 5 to 60 mils in thickness, useful in wall coverings, floor coverings and on ceilings; and methods of producing said thin decorative cementitious veneers wherein printing, embossing and casting are performed simultaneously. The basic method comprises the steps of placing a wet cloth on a mold engraved with a design followed by placing a plastic cement mix on said wet cloth to simultaneously form a casting and a temporary cloth mold which is the exact copy of the original mold, immediately removing the plastic cement casting together with the temporary cloth mold from the original engraved mold before it sets, thereby making the original mold immediately available for the next casting, removing the temporary cloth mold from said plastic cement casting before it sets, and air curing said casting while being stored.

Abstract: Disclosed is a transparency, a method for forming it and a photographic mask having variations in optical density corresponding to deviations of a surface contour from a plane of an original surface. The transparency is a composite two layer, transparent, preferably resinous structure with a contoured interface between the layers. The transparency may be made by forming a first conformed transparent layer on the contoured surface of a substrate. A second conformed transparent layer is then formed on the contoured surface of the first transparent layer. One of said first or second transparent layers is uniformly colored, the other of said layers may be uncolored, or have a less intense, uniform, similar, or different color. Each of the layers has a refractive index substantially equal to that of the other layer at all points. Light may be passed through the transparency in substantially unrefracted rays, and in amounts related to the thickness of the most intensely colored layer.

Abstract: A process for the production of patterned tiles from thermoplastic synthetic resins includes the steps of forming a length of crude sheet stock by compressing unicolored and/or differently colored or multicolored particulate material of thermoplastic synthetic resin; cutting off crude sheets from the sheet stock; punching segments out of the crude sheets; combining the segments from at least two crude sheets of differing colors into a panel so that the segments complement one another, and thereafter press-molding the segments to form an intarsia tile with the use of pressure and heat so that the segments are welded together along joints formed therebetween.

Abstract: A method of moulding a shaped article from a curable composition in which the composition is cured in a mould comprising at least two mould parts defining a cavity characterized in that prior to introducing the curable composition into the mould cavity, at least part of the surface forming the mould cavity is provided with a deposit of a material which provides a color contrast with the curable composition, the deposit being provided on areas of the mould which correspond to the areas on the cured moulding on which the color contrast is required to be reproduced, the deposit consisting of at least one finely divided pigment mixed with at least one finely divided filler. Preferably the weight ratio of filler to pigment is in the range 1:1 to 100:1, desirably 5:1 to 50:1. Sufficient deposit is applied to give the desired color contrast effect in the finished moulding.

Abstract: An injection moulding machine has a reciprocable and rotatable screw which is water cooled internally. This enables the temperature of the machine to be precisely controlled. This further enables the required plasticization of the resin granules with limited mixing of the same, so that multi-color effects can be achieved. FIG. 5 shows the waterways in the screw and the rotating supply connections.

Abstract: Method for making a breast prosthesis formed from plasticized polyvinylchloride plastic having coloring, texture, weight and feel closely approximating those of a natural breast. Liquid plastic is heated and tinted with a first portion having a skin tone and a second portion having the darker color of the areola and nipple area. The darker portion is poured into a breast mold to the depth of the desired areola area. This pour is allowed to set until tacky at which time the skin colored portion is poured, which bonds to the first pour. The mold is immediately cooled in a freezer at 5.degree. F. or less. After curing and cooling, the prosthesis is removed from the mold. An alternative embodiment used for teaching self-examination includes small objects embedded in the prosthesis to simulate tumors.

Abstract: A method for injection molding a particularly elongated tubular parison having a closed bottom and assuring consistently uniform wall thickness in the tube wall, is disclosed. The method involves injection molding an open bottom tubular member, and thereafter forming a bottom wall integrally with the tubular member in a separate injection molding step in which a molten polymer is injected into a mold cavity defined, in part, by the bottom end of the tubular member. During the first injection molding step, the core mold is held at both ends by the other components of the mold assembly so that there is no possibility of eccentric misplacement of the elongated core in the mold cavity due to flexing of the core, which would cause non-uniformity in wall thickness of the molded tube.

Abstract: A stream of homogenized plastics material is divided into stream parts 10, 11 and 12 and additive introduced to the external surface of at least one stream part 10, 12 either at or before a gear pump 1. Subsequent passage through the pump 1 mixes the additive in before the stream parts 10, 11 and 12 are recombined downstream of the pump. Stream parts 10, 11 and 12 may be separated by partition on approach to the pump gear and also by partitions 8 and 9 in the pump 1 itself.

Abstract: A method of moulding containers consisting of two plastic materials compatible with and sealable to each other, of differing nature and/or color, wherein the material is injected into a space provided between the walls of a mould and a counter-mould, and comprising defining within said space by means of removable separators a first and a second sub-space; injecting into said first sub-space a first one of said materials to fill it fully, injecting into the second sub-space the second material, removing said separators and continuing the injection under pressure of said second material until local interpenetration thereof.

Abstract: A process of making a porous, lightweight, insulative, inorganic container for plants having an ornamental marbleized appearance. A basic slurry formed of gypsum cement is poured into a rotating mold. While the basic slurry is being poured into the mold, one or more colored slurry mixtures are poured onto the stream of basic slurry such that the basic slurry and the colored slurry mixtures remain separated by an interface such that each stream of slurry maintains its integrity to form discrete markings of different colors in the wall of the cast container. The casting is allowed to cure for a period of 25-30 minutes in the mold at a temperature of about 70.degree. F. After the casting has been removed from the mold, it is held in a controlled atmosphere at 120.degree. F. and less than 40% relative humidity.

Abstract: Process and machine for multi-color injection molding of plastic products having three-dimensional appearance of continuous or discontinuous multi-color patterns according to a preset program through injection of various kinds and/or colors of resins into a cavity, the resins being injected from at least three injection units, merged into and blended together in a molten resin mixing manifold. The multi-color injection molding machine has more than three injection units established around the molten resin mixing manifold. The manifold internally holds an arranging chamber, which received a resin from each injection unit and forms a compounded or layered resin flow. For the purpose of presenting intricate multi-color patterns according to a preset program, the arranging chamber is detachably mounted in the molten resin mixing manifold.

Abstract: The invention relates to a method of producing molded bodies of expanded plastic having a predetermined density, based on a starting material in granulate form to which a blowing agent and optionally a cross-linking agent have been added, said starting material being introduced into an injection molding machine/press in which it is heated and injected/pressed into a mold. In order to obtain an efficient production process without loss of raw material and a product whose density can be determined in advance, the material in the injection molding machine/press is heated to a temperature which is below the temperature required to initiate the reaction of the blowing agent/cross-linking agent, and the blank thus formed is subsequently transferred to an expansion mold having the shape of the desired final product, but larger, than the blank. The blank is caused to expand in the expansion mold and final expansion takes place outside the expansion mold.

Abstract: Multi-colored detergent bars can be manufactured by extruding detergent material through a multi-apertured plate in a detergent plodder and injecting a visually distinctive liquid at the plate. The liquid is distributed throughout the detergent material in the form of striations as the material is compressed in the extrusion cone.A specific form of external striping and the use of increased amounts of injected liquid can be achieved by having some of the apertures positioned peripherally on the plate. These apertures form `walls` of extruded material which constrain the liquid into stripes.The manufactured bar has a distinctive appearance because the external striations are wider than the internal striations.

Abstract: A plastic ornament and a method of making the ornament. Plastic pellets are placed in the holes of a mesh according to a predetermined pattern, each hole being sized to accommodate a single pellet. The pellets and mesh are heated until the pellets begin to fuse together. The mesh is then separated from the fused pellets. The fused pellets may be heated further until the plastic ornament achieves the desired smoothness.

Abstract: Method for making an article from plural resin materials including blocking of injection channels with pairs of abutting plates and separating the plates to unblock a channel or channels to permit sequentially injecting different resin compositions.

Abstract: A filler material and a heated, catalyzed synthetic resin are sequentially introduced into a mixer. The mixer has a conveying section and a mixing section. The resin and filler are introduced into the conveying section, which forces the combined resin and filler material into and through the mixing section. The mixing section kneads and shears the material to uniformly disperse the resin throughout the filler. The resin/filler mixture is then dispensed into a mold for curing.

Abstract: A colored acrylic sheet having an attractive 3-dimensional depth of color resulting from the use of a mixture of pigments or a pigment and a dye wherein an inorganic pigment, distributed non-uniformly throughout the sheet and a colorant is distributed uniformly through the sheet, the particles of non-uniformly distributed pigment being concentrated preferentially towards one surface of the sheet and are visible through the opposite surface of the sheet which is preferably substantially free from the non-uniformly distributed pigment. The attractive appearance is further enhanced by shaping the sheet and the sheet is particularly suitable for forming articles of sanitaryware.