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4195112 |
Process for molding a non-woven fabric
A process for molding a coherent, pliable, thermally bonded, non-woven fabric comprising potentially adhesive fibers wherein the fabric is molded and new or stronger thermal bonds are developed...
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4187343 |
Process for producing non-woven fabric
A process for producing a non-woven fabric having excellent draping properties and strength and further having a handling similar to that of woven fabrics, which comprises drawing uniaxially or...
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4183886 |
Chemical method for embossing a ceramic acoustical product
An acoustical board comprised of felted mineral wool and clay is embossed by applying an aqueous dispersion of lithium carbonate and borax to selected areas of the board surface, drying the coating...
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4175106 |
Post press molding of man-made boards to produce contoured furniture parts
Six-sided furniture parts are manufactured by pressing a cellulosic fiber-containing mat to consolidate said mat into a unitary blank, cutting the blank to a size larger than interior dimensions of...
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4169748 |
Post-press embossing of a consolidated man-made board
A consolidated man-made board, such as hardboard, is "post-press" embossed with a contoured embossing plate at a pressure of at least about 1000 psi, at a temperature in the range of about...
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4161502 |
Process for forming plastic articles
An improvement in the process of forming plastic articles wherein such articles are forged from a compression formed briquette of resinous powder, such improvement comprising (1) compressing a...
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4158073 |
Process for producing decorative multi-level embossed surface covering
The process for making a surface covering having an embossed wear surface, including embossed design portions which differ in elevation and shading, by depositing a liquid resinous base coating...
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4157370 |
Apparatus and method for compacting multi-sectional particulate containing filters
A multi-sectional filter tip assembly is initially made with two charcoal filter sections and alternate sections of cellulose acetate fibrous material with a fibrous section at each end. The filter...
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4155968 |
Method of manufacturing mats to be processed into composition boards
An improved method or process for the continuous manufacture of mats to be processed into composition boards is disclosed, the board-forming process being a dry process involving hot-pressing of...
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4154434 |
Boot arrangement for piston-cylinder assembly
A flexible boot surrounds a piston rod and is sealed at one end to the free end portion of the piston rod and at its other end to the rod end of the associated cylinder. The head end of the...
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4153490 |
Method of manufacturing coated composite articles from a non-flowable mixture, and articles obtained thereby
A composite article is obtained by forming a body of a mixture of a fibrous material with a heat-hardening binder, by interposing between the body and a coating layer an intermediate layer having a...
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4152389 |
Process for preparing a lightweight visually uniform abrasion-resistant nonwoven sheet
A method for improving the uniformity in visual appearance of a film-fibril nonwoven sheet of thermoplastic polymer comprising passing said sheet through the nip formed between two rolls, one of...
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4145385 |
Paste extrusion of PTFE
The fibrillated surface layer of an unsintered extruded mass of a polytetrafluoroethylene is broken by mechanical or electrical force to facilitate evaporation of the lubricant whereby a molded...
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4144294 |
Method of conditioning garneted polyester for blow injecting as insulation in goods, and apparatus therefor
Sheets of garneted polyester are separated into a plurality of small pieces and each of the small pieces is generally formed into a rounded body suitable for blow injecting into an insulation...
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4142007 |
Embossed laminated board
A method is provided for forming a unique embossed laminated board product. A hard core is covered with a soft wood veneer and this is then covered with a resin treated wood fiber sheet. The...
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4137363 |
Matrix material for printing plates and method of manufacture thereof
A printing plate matrix is presented including mineral and/or organic fibers, thermosetting resin, and glass microbubbles uniformly dispersed throughout the material.
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4134948 |
Method of making a nonwoven fabric
A nonwoven, self-sustaining, absorbent fabric comprising a batt of randomly arranged, intermingled cellulosic fibers has a plurality of high loft, loosely compacted regions separated from each...
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4131664 |
Method of making a multiple-density fibrous acoustical panel
An improved acoustical and trim acoustical panel suitable for use in the interior passenger compartments and exterior components of automotive vehicles or the like, comprising a plurality of...
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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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4127637 |
Method of manufacturing a dry-formed, embossed adhesively bonded, nonwoven fibrous sheet
This invention relates to a unique method of fabricating a dry-formed, adhesively bonded nonwoven sheet and to the sheet formed thereby. The method of this invention includes the steps of forming a...
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4117067 |
High production method of producing glass fiber resin composites and articles produced thereby
A liquid binder forming material is added to a preform mold, dispersed chopped glass fiber strand is allowed to free fall into the preform mold to build up a layer of chopped fibers wherein...
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4116761 |
Porous element and the preparation thereof
A porous tubular element of uniform density and porosity is formed by uniformly depositing binder and crushable fibers selected from the group consisting essentially of polycrystalline, alumina,...
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4115498 |
Method and apparatus for molding articles from fibrous material
Method of continuously molding articles from a fibrous material containing a hardenable bonding material wherein a quantity of fibrous material is supplied to a forming member that engages the...
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4100319 |
Stabilized nonwoven web
A process is described for the intermittent autogenous bonding of a continuous filament web wherein the filaments have a low degree of crystallinity. In one embodiment, the process involves passing...
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4093691 |
Method for manufacturing moulded plastic articles
Method for manufacturing articles from synthetic material by means of a mould, wherein a compression medium is caused to act upon the plastic mass fixed to a non-porous support, from the...
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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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4084996 |
Method of making a grooved, fiber-clad plywood panel
A plywood panel is provided with a durable and highly weather-proof surface and a plurality of embossed parallel grooves therein for enhancing its appearance. A metal caul plate is formed with the...
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4082828 |
Method for producing thin particle board
A particle board manufacturing method capable of manufacturing particle board of a thickness of 1 to 10 millimeters of fine or coarse chips, which includes a filling machine and a press wherein the...
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4076567 |
Method of producing plastic sheets with integrated geometric decorative patterns
A method and apparatus for producing synthetic resin sheets having geometric decorative patterns extending through the thickness of the sheet as a substantially identical pattern image...
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4075383 |
Method of pattern bonding a nonwoven web
The method of pattern bonding nonwoven webs made from polyamide filaments wherein the web is exposed in a first treatment zone to a gaseous mixture of an activating agent and water and is then...
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4072558 |
Non-combustible hardboard sheet
A process for preparing a non-combustible hardboard sheet is disclosed. The process comprises the formation of relatively low density insulation board type product which is dried, whereafter the...
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4061813 |
Combination sheathing support - member building product
A wood-base building component of cellulosic particles and/or fibers and adhesive binder is, in a single pressing operation, molded into an integral product of sheathing and support members for use...
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4049589 |
Porous films of polytetrafluoroethylene and process for producing said films
A porous film of polytetrafluoroethylene having an accurately controlled pore diameter and a superior pore diameter distribution, and a process for preparing the film.
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4014965 |
Process for scrapless forming of plastic articles
Plastic articles without foam spots are produced by an improved powder forming process wherein a powder of normally solid, thermoplastic polymer is compacted by means of vibratory energy into...
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4013810 |
Sandwich panel construction
A typical embodiment of the resinous foam sandwich construction that characterizes the invention has face sheets of fiber reinforced thermoplastic resin laminates. The foam core is a mixture of...
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3989775 |
Method of making a retro-reflective beaded material
Method of making a beaded retro-reflective material comprising embedding beads in a generally planar plastic matrix and embossing the material so that axes of exposed portions of the beads lie at...
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3988407 |
Method for producing molded bodies from curable binder-bearing glass fibers
A method of moldng a product which involves delivering a supported body or mass of material that may be molded such as mineral fibers impregnated with a binder into a contoured molding facility,...
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3979492 |
Process for producing fiberboard
Fiberboard is produced by a process in which fibrous material is impregnated with curable amino resins. The resins are prepared from a system having two components, each of which remains storage...
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3977928 |
Process and apparatus for producing a soft fibrous sheet
An arrangement for manufacturing a fibrous sheet in which fibers are crushed and dispersed to form a layer of substantially uniform thickness and width. The layer of crushed fibers is conveyed as a...
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3976734 |
Method for forming air formed adhesive bonded webs
A method of forming a lightweight, airlaid web of wood fibers suitable for tissue and toweling applications comprises airlaying a wood fiber continuum onto a foraminous carrier, bringing the...
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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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3966912 |
Method of preparing tobacco smoke filter
A tobacco smoke filter element for use in cigarettes, cigarette holders, cigar holders or pipes is formed from a bonded non-woven fabric composed wholly or partly of wool fibers. It is preferred...
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3949035 |
Method of forming a lightweight airlaid web of wood fibers
A method of forming an airlaid web at high speeds, the web being suitable for tissue and toweling applications, includes air forming a flimsy continuum on to a foraminous surface, wetting the...
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3939240 |
Method for forming fibrous pads
Method for the dry forming of fibrous pads employ a pad forming member closing the lower end of a pad forming area. The pad forming member preferably is in the form of a condenser roll having...
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3931384 |
Method of making end frames for upholstered furniture
A method is provided by which end frames for upholstered furniture are pressure molded in one piece from a mixture of wood flakes and thermosetting resin. They have no grain, are equally strong in...
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3896197 |
Method of making synthetic resin surface covering including use of two heat transfer modes
A method for making a fabricless surface covering from particles of synthetic resin utilizes an oven assembly having a plurality of heating units which are automatically and/or manually adjustable...
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3882063 |
Method of producing uniform fiberous webs by drawing partly fused particles
This invention relates to a process for the manufacture of fiberous webs, said process requiring neither an extrusion nor a fibrillation step. The process consists essentially of forming a sheet of...
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3880975 |
Continuous hardboard production
A thin resin-bonded hardboard is produced by forming from a practically dry starting material containing a major part of defibrated ligno-cellulose plant substances and only a small percentage of...
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3816208 |
METHOD OF MANUFACTURING MOULDED ARTICLES OF WOOD PARTICLES WITH COVER SHEETS
The disclosure is of a method of manufacturing ornamental relief panels or other moulded articles, characterised in that it comprises the steps of coating a surface of a cover sheet (for example a...
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3816180 |
METHOD FOR PREPARING TEXTURIZED CATHODES
A method for preparing depolarizing cathodes of improved performance is disclosed. The method comprises texturizing the surface of the depolarizer cathode by interposing an element having at least...
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