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4128612 |
Making absorbable surgical felt
Tissue absorbable synthetic polymeric fibers, such as polyglycolic acid, are felted to form a thin mat with at least one, and preferably both, surfaces compacted by contact with a heated embossing...
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4122137 |
Radiation cure of rubber sheets
Process and apparatus for the production of rubber sheets such as tire treads having a surface design in which the rubber is at least partially cured in a mold.
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4116594 |
Embossing apparatus having magnetic roller and flexible embossing plates therefor
Apparatus for applying a continuous embossing pattern to webs of material such as paper or the like and a method for producing an embossing surface. The apparatus includes rollers which receive a...
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4115495 |
Processing extruded thermoplastic polymer
Method and apparatus for processing extruded thermoplastic material for use in house siding by advancing a hollow extrudate from the die member through cooling and sizing baths followed by stress...
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4104428 |
Crosslinked molded pile product
A pile product comprising a plurality of relatively long, thin face fibers extending from a base is molded from a crosslinkable polymeric material. During formation of the fibers, crosslinking of...
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RE29674 |
Preparing cigarette filters
Cigarette filters are made by passing a continuous rod of filter material continuously through a moving die to form a continuous filter element having a repeated pattern of staggered grooves so...
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4088726 |
Method of making non-woven fabrics
A thermally segmentally bonded non-woven fabric having an attractive pattern of irregular bonds and a process for preparing it using heated patterned calender rolls having thereon surface patterns...
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4079114 |
Method and apparatus for embossing sheets
Disclosed herein is a method and apparatus for forming a sheet of extruded deformable polymer with a plurality of longitudinally extending fracture lines along which splitting can occur to...
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4062918 |
Method for producing a printed thermoplastic resin tape for packaging
A thermoplastic resin tape on which a desired marks or the like are printed is formed and then is pressed by embossing rollers to effectively disorder the micelle particle arrangement in the resin...
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4054701 |
Plastic sheet with a surface treated to enhance adhesion and method of making such sheets
A sheet of thermoplastic material has a planar surface treated to enhance adhesion of paper thereto by means of an adhesive of the class consisting of animal glue and water base adhesives as used...
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4048269 |
Embossed suede material and method of preparing same
An embossed plastic suede material is prepared by the method of embossing under heat and pressure particular areas of a layer of a cellular plastic material characterized by a suede-like surface to...
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4038356 |
Method and apparatus for making a fibrous board-like product having a male edge and a female edge
Disclosed is a method for making a board-like product capable of being formed into a duct section having a male end and a female end for joining sections together to form a duct. Inorganic fibers...
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4032610 |
Manufacture of contoured records
A method of making disc records, particularly video discs from thermoplastic sheet material. In a press a thin flexible matrix is disposed between the sheet, which is backed by a resilient cushion,...
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4028033 |
Apparatus for embossing a plastic workpiece using vibratory energy
This invention concerns an apparatus for embossing a plastic workpiece using vibratory energy. A workpiece to be embossed is brought into forced engagement with indicia carried by an embossing ring...
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4024001 |
Smoke filter process and apparatus
The invention provides a process for the continuous production of an elongate smoke filtering member comprising a heat-activatable bonding material and having air-permeable deformations at...
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4022643 |
Methods of manufacturing embossed resinous products
A method of manufacturing an embossed resinous product having a textured surface which comprises: forming a potentially foamable resinous composition containing a blowing agent therein; heating the...
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4007308 |
Process for the production of pile surfaced articles from polyesters
A process for producing pile-surfaced articles from crystal forming polymers with glass/rubber transition temperatures above ambient temperatures comprising drawing fibres from a sheet of amorphous...
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4000242 |
Web material treating system including an inflatable platen roller
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...
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3996328 |
Method for finishing resinous surface coverings
A method for finishing resinous sheet material wherein the sheet material is adhered to a support surface and is passed through a pressure nip having an upper hard, very smooth, resiliently backed...
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3987228 |
Production of pile surfaced materials
A process of forming pile surfaced material comprising drawing fibrils from the surface of a cross-linkable thermoplastic material and cross-linking the thermoplastic while maintaining the fibrils...
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3983278 |
Method of making a thermoplastic pile sheet
A process for improving the abrasion resistance of a pile surfaced material comprising fibrils or tufts of a thermoplastic material integrally formed with a sheet of the thermoplastic material said...
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3981952 |
Fibrous materials
Disclosed is a process for treating a travelling film made from a molecularly-orientable synthetic thermoplastic organic polymer, according to which the film while in an unoriented condition and a...
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3980570 |
Sliding member having anti-frictional and anti-static properties for a cassette
A sliding member having anti-frictional and anti-static properties for a tape or film cassette of an audio- or video-tape recorder or a movie projector, comprising a thermoplastic resin containing...
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3978258 |
Embossed decorative sheet-type material and process for making same
Embossed decorative sheet-type covering material such as sheet vinyl flooring is prepared by forming a foamed plastic layer over a pigmented layer on a substrate and then selectively crushing the...
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3976820 |
Process for the production of pile surfaced articles
A pile-surfaced product is made by feeding a synthetic polymeric material and a backing web to a surface with the synthetic polymeric material between the backing web and the surface under...
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3973063 |
Spot blocked thermoplastic film laminate
There is provided a laminate of at lest two thermoplastic films which has a plurality of embossed parallel ribs running in at least one direction, said films being blocked together at spaced apart...
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3969565 |
Card clothing method for treating thermoplastic sheet material
The use of carding technology to produce a patterned sheet of thermoplastic material which comprises pressing thermoplastic sheet material between rotating cylinders, rollers or endless belts...
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3966383 |
Apparatus for embossing film
An apparatus for vacuum embossing sheet thermoplastic material which utilizes an endless, seamless structure as the embossing surface. A sheet of heat-softened thermoplastic film is passed over an...
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3963820 |
Coated substrates production
A process is described in which a cast coated high gloss polymeric coating is formed on a sheet substrate by applying an aqueous emulsion or dispersion of polymeric material to the substrate,...
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3963309 |
Reflex light reflector sheet and method for its manufacture
A reflex light reflector sheet is disclosed wherein both the front face and the rear face are provided with a plurality of juxtaposed convex lens surfaces, the rear face being covered by a mirror...
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3956450 |
Binding strap, and process for manufacturing same
A binding strap manufactured by the embossment of a relatively narrow and flat band obtained by the extrusion molding of a starting material consisting predominantly of a thermoplastic synthetic...
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3954933 |
Reticular structure derived from film and method of manufacturing said structure
A reticular split film comprising transverse, relatively thick, oriented, regularly formed stemfibres and intervening relatively thin, and generally irregularly formed branchfibres, which are...
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3950480 |
Method for embossing plastic material
A method for embossing thermoplastic material and the thermoplastic material produced thereby. A transverse section of a continuous length of preformed thermoplastic film is heated by a nondirect...
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3943222 |
Manufacturing textile yarns
In the manufacture of textile yarns from synthetic thermoplastic materials, such as polyamides, polyesters and polyolefins, e.g. polypropylene, a web or sheet of the material, which may be...
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3936518 |
Process for preparing a synthetic wood
An improvement in a process for preparing a foamed thermoplastic article in which a foamable thermoplastic resin is passed through an orifice of a die and is permitted to expand after passing...
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3922329 |
Methods of making network structures
Methods of making network structures include forming on one side of a sheet of thermoplastic polymer a plurality of parallel continuous main ribs and forming on the other side of the sheet in a...
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3919377 |
Production of tapes and fibrous materials
A hot melt film of cold-drawable thermoplastic polymer is fed through nip means between co-operating members at least one of which is a roller at a temperature below polymer melting point, the nip...
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3917785 |
Method for producing nonwoven fabric
A method of treating a layer of fibers to form a fibrous web having various areas of fiber concentration and opacity. The fiber layer is supported on an impermeable member and moving forces are...
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3917772 |
Method for producing battery separator sheet
A plastic material is formed into a sheet suitable for conversion into a battery separator. An extruded sheet is formed by calendering to produce projections on at least one surface and thereafter...
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3911187 |
Embossed plastic film
A thermoplastic film having a permanently embossed design which simulates woven fabric or cloth and which has edge-curl resistance under machine stress and low light reflectivity or gloss is...
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3906132 |
Prefinished overlay paper
An overlay sheet adapted to be molded and laminated to a resin impregnated fiberglass batting or the like to form a contoured decorative laminate for horizontal and vertical surfacing, said overlay...
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3901639 |
Sheet plastic article polishing apparatus
Automatic continuously operable apparatus for smoothly finishing plastic material without dimensional distortion or deformation wherein plastic sheets, webs or cards are interleaved between...
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3895153 |
Friction-surface sheet
A flat, backing layer of uniform thickness of biaxially oriented, heat set polyethylene terephthalate having adherently bonded to its upper surface a textured, tough, scuff-resistant,...
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3887678 |
Mechanically embossed resilient laminar floor material
A process for forming an embossed surface on a laminar floor material which has at least one foam layer. A floor material is formed consisting of a wear layer joined with an expanded foam cushion...
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3886250 |
Method and apparatus for making an extruded article of rigid plastic with a grained surface
An article made of a rigid plastic such as ABS and having a grained surface, is made by extruding the plastic to a preliminary shape in which the surface to be grained is planar, cooling the...
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3883631 |
Method and means for making high molecular weight polyethylene sheets
This information relates to the extrusion of high molecular weight polyethylene having a molecular weight in excess of 1,000,000 and to a method and means for altering the cross-sectional...
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3882207 |
Process of producing double-sided holographic replicas
A double-sided, holographic replica comprises a web of transparent, thermoplastic, sheet material having a separate series of off-axis-recorded, phase-modulated holograms pressed into each of the...
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3881381 |
Apparatus for producing reticulate sheet material
A reticulate polymer sheet material comprising intersecting filaments which are readily stretchable in the direction of their axis and which form a pattern of discontinuous areas. The filaments are...
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3876491 |
SYNTHETIC SUEDE
A synthetic suede product formed of a thermoplastic foam adhered to a fibrous substrate, wherein the foam has the surface characteristics of natural suede. The synthetic suede product is formed by...
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3872194 |
Process for producing a bulk cushioning material
A bulking material is produced by providing a substantially flat sheet of plastic material with a memory of a variation, such as an embossed pattern, in surface or bulk, therein and treating this...
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