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4049493 |
Self-bonding synthetic wood pulp and paper-like films thereof and method for production of same
Synthetic wood pulp characterized by the presence of polyolefin fibrids having both film and fiber morphology is disclosed as being useful for the production of paper-like films. Further disclosed...
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4042453 |
Tufted nonwoven fibrous web
A tufted nonwoven web material exhibiting high loft, bulk and absorbency is made by a papermaking technique using an apertured, plate-like, fiber collecting element having a structure appropriate...
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4040856 |
Production of discrete cellulose acetate fibers by emulsion flashing
Discrete cellulose acetate fibers are produced by flashing an emulsion of cellulose acetate, water, and a solvent which is miscible with the water at the temperature at which the emulsion is...
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4028452 |
Additives to improve wettability of synthetic paper pulp
Synthetic paper pulp is prepared by extruding a foam sheet of a synthetic thermoplastic fiber forming resin, which resin contains from 0.1 to 5.0 wt. % and preferably from 1 to 2 wt. % of a soap...
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4018646 |
Nonwoven fabric
A novel web that can be produced by the process of the present invention is comprised of two different types of fibers, with the web characterized by having a predominance of one fiber type at one...
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4018647 |
Process for the impregnation of a wet fiber web with a heat sensitized foamed latex binder
A fiber web made by the wet method on a paper making machine is impregnated with a heat sensitized, foamed latex binder as the web passes through a screening area of the paper making machine.
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4015043 |
Electrostatic recording material
The electrostatic recording material comprises an electroconductive transparentized base sheet having a dielectric layer thereon. The transparentized base sheet is obtained by subjecting to a...
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4013751 |
Fibrils and processes for the manufacture thereof
A process for producing a mass of entangled solvent swollen polymer filaments which can be converted into paper-making fibrils by subsequent refining. An olefin polymer such as polyethylene having...
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4012281 |
Wet laid laminate and method of manufacturing the same
An improved wet laid laminate comprising a first layer consisting of very short fibrous material and a binder and a second layer consisting of a combination of very short fibrous material and rayon...
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4007083 |
Method for forming wet-laid non-woven webs
A method of producing textile-like non-woven essentially binderless webs from fiber furnishes at least about 70% of which comprise man made non-fibrillatable low denier fibers having no large area...
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4000967 |
Wettable non-woven structures and components thereof
A nonwoven mat of polyolefin fiber is contacted with a gaseous sulfur dioxide-chlorine mixture to sulfo-chlorinate the surface of the polyolefin fibers to a relatively high sulfur content and then...
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3998690 |
Fibrous assemblies from cationically and anionically charged fibers
Fibrous assemblies, such as paper, having advantageous properties related to bulk, absorbency, and compaction resistance are obtained from discrete fiber aggregates by a process which comprises...
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3998689 |
Process for the production of carbon fiber paper
A carbon fiber paper is obtained from a mixture of carbon fibers, pulp, organic fibers having a carbon yield of not less than 20% and a paper sheet binder in relative amounts such that the ratio of...
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3985611 |
Wholly inoganic papers and membranes suitable for ion exchange made of thorium acid phosphate and process for preparing the same
Inorganic layers, papers and membranes for ion exchange are made of fibrous thorium acid phosphate with a ratio PO 4 /Th in the solid of about 2.
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3960794 |
Manufacture of aqueous suspensions of polyolefin fibrids
A process for the manufacture of nonfoaming aqueous suspensions of polyolefin fibrids using suitable dispersing agents. These are obtained by polycondensation of 1 mole of melamine, from 1.8 to 3...
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3960652 |
Process of forming wet laid tufted nonwoven fibrous web and tufted product
A tufted nonwoven web material exhibiting high loft, bulk and absorbency is made by a papermaking technique using an apertured, plate-like, fiber-collecting element having a structure appropriate...
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3957573 |
Process for producing insulating paper where the paper is frictionally calendered
Polyolefin fibers containing at least 70% by weight of polypropylene fibers having a denier of at least 0.5 and a birefringence of at least 2.5 × 10 - 2 are formed into a sheet. The sheet is then...
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3953282 |
Process for manufacturing paper-like synthetic sheet
A polyolefin micro-flake aggregation which is easily micro-flakable from the aggregation into a plurality of irregularly shaped micro-flakes suitable for producing synthetic paper, is manufactured...
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3947315 |
Method of producing non-woven fibrous material
The invention relates to an improved method of making bulky non-woven fibrous material including cellulosic fibres and potentially crimped synthetic fibres, the improvement consisting of draining a...
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3936347 |
Paper composed mainly of pullulan fibers and method for producing the same
A specific paper, which is soluble in and easily destroyable with water, is obtained by subjecting to papermaking a suspension of fibers of pullulan, which is a linear high polymer having...
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3932687 |
Fibrous configuration composed of a plurality of mutually entangled bundles of fine fibers
A fibrous article having a suede-like surface is composed of numerous staple fiber bundle units mutually entangled with one another in a three-dimensional configuration. Each staple fiber bundle...
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3932209 |
Low hemicellulose, dry crosslinked cellulosic absorbent materials
Dry crosslinked, fibrous cellulosic absorbent material having low hemicellulose content and low knot content, the fibers being internally crosslinked for the major part and being relatively free of...
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3928496 |
Synthetic fiber for paper and method for producing the same
A synthetic fiber substantially comprising: A. 5-40% by weight of a copolymer consisting of A. 20-80% by weight of polyvinyl alcohol, and B. 80-20% by weight of acrylonitrile, and B. 60-95% by...
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3917001 |
Fire protection system
Disclosed is a fire protection system including a plurality of suppressor units activatable to suppress a detected fire; a plurality of electrical current responsive activators, one associated with...
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3916059 |
Laminated panel, particularly for furniture construction
New crossbanding sheets are provided, along with a laminated furniture panel with the new crossbanding sheets. The crossbanding sheets are made of a combination of glass fibers and cellulose fibers...
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3904804 |
Polyolefin micro-flake aggregation useful for manufacturing synthetic papers and polyolefin synthetic papers obtainable therewith
A polyolefin micro-flake aggregation which is easily micro-flakable from the aggregation into a plurality of irregularly shaped micro-flakes suitable for producing synthetic paper, is manufactured...
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3901755 |
Bonding of polymers by surface activation
Non-cellulosic, synthetic polymeric materials are made bondable to themselves and to other materials, without the use of external binders or temperatures at the melting point of the polymer, by...
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3870590 |
NON-FLAMMABLE POLYESTER TEXTILE ARTICLES AND METHODS FOR MAKING THEM
Non-flammable textile articles of polyester fibers are prepared by blending flammable polyester fibers with non-flammable fibers and then applying a sizing or binder of a non-flammable polymer...
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3870596 |
Process for the preparation of dispersion water for incompletely regenerated cellulose substance
The application discloses an improvement in the process of producing non-woven paper-like products from incompletely regenerated cellulose. The improvement resides in the paper making stage in...
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3855056 |
PROCESS FOR PRODUCING SYNTHETIC PULP-LIKE MATERIALS AND PRODUCING SYNTHETIC PAPERS THEREFROM
Synthetic pulp-like materials are produced by forming into a film a mixed resin comprising at least one orientable thermoplastic resin and at least one thermoplastic resin incompatible or poorly...
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3840428 |
BASE SHEET FOR STRIPPABLE WALL COVERING AND PROCESS FOR MAKING
A base sheet made on a paper machine for use in the manufacture of strippable wall coverings, the process of making it, and strippable wall coverings including it. The base sheet is characterized...
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3839144 |
PAPER HAVING 60-97 PERCENT HYDRATED CELLULOSIC FIBERS AND 3-40 PERCENT UNHYDRATED CELLULOSIC FIBERS
Novel paper is prepared by employing a furnish containing from about 60 to about 97 percent of hydrated, gelatinized paper-making fibers and from about 3 to about 40 percent of substantially...
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3787256 |
NONWOVEN SHEET STRUCTURES FROM MODIFIED POLYOLEFIN FIBERS
A sheet structure prepared from modified polyolefin fibers and a method of preparation of the structure. The fibers are modified by introducing thereinto halide groups and acid groups with...
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3769873 |
PROCESS FOR UNIFORMLY DEPOSITING RESIN IN COMBUSTIBLE CARTRIDGE CASES
A process to control resin migration in combustible cartridge cases compo of nitrocellulose fibers and cellulose fibers is provided by adding to the conventional method the step of dipping the...
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3766002 |
NONWOVEN PRODUCTS
This invention is directed to producing polymeric binding agents in fibrous form for nonwoven fabrics and for nonwoven fabrics incorporating such polymeric binding agents in fibrous form, the...
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3755220 |
CELLULOSIC SHEET MATERIAL HAVING A THERMOSETTING RESIN BONDER AND A SURFACTANT DEBONDER AND METHOD FOR PRODUCING SAME
Cellulosic sheet materials having an improved ratio of wet tensile strength to dry tensile strength comprise cellulosic fibers; at least one debonder selected from the group consisting of anionic...
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3753826 |
METHODS OF MAKING NONWOVEN TEXTILE FABRICS
A nonwoven textile fabric having excellent softness, drape, and hand, good long and cross tensile strength, good wet abrasion resistance and good washability, and good absorptive capacity and...
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3669829 |
PAPER AND PAPER-LIKE FIBROUS STRUCTURES FROM MIXTURES OF NATURAL, ARTIFICIAL AND SYNTHETIC FIBERS
There are disclosed paper and paper-like fibrous structures comprising natural or artificial cellulose fibers and synthetic fibers which are fibers of a propylene polymer, such as polypropylene...
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3657031 |
PRODUCTION OF BONDED NONWOVENS BY THE WET METHOD
Textile nonwovens can be prepared with particular advantage by treatment of textile fibers suspended in an aqueous medium with dissolved quaternary organic ammonium salts and with water-soluble...
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3639207 |
METHOD FOR DRYING NONWOVEN FABRIC
A nonwoven web, formed on a continuous screen papermaking machine and including heat shrinkable fibers, is delivered onto an endless coarse wire screen and exposed to infrared radiation to heat the...
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3623938 |
MINERAL AGGREGATE INSULATION BOARD
A strong, mineral aggregate insulation board of lowered thermal conductivity is provided by incorporating 40-80 percent by weight of ultrafine particles of expanded volcanic glass that is 60 mesh...
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3622445 |
GLASS-FIBER WEBS EMPLOYING GLASS FIBERS WITH DIAMETERS OF3-15 MICRONS
Glass-fiber webs having a low weight per square meter and superior strength characteristics are made by preparing a homogeneous suspension of fibers of a glass selected from the group of C and E...
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3622446 |
METHOD OF MAKING A POCKET-TYPE FILTER AND PRODUCT
An aqueous slurry is prepared which contains no substantial amount of phenol thermoset resin but has up to 30 percent wood pulp; 20-65 percent by weight of either olefin, acrylic, modacrylic, or...
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3617438 |
ELECTRIC INSULATING PAPER AND ITS PRODUCTION PROCESS
A process for the production of an electric insulating paper and the insulating paper thus produced, having superior characteristics such as a low dielectric constant, a low dielectric loss...
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3589364 |
BIBULOUS CELLULOSIC FIBERS
Bibulous cellulosic fibers for use in fibrous structures having an inherently absorptive function, for example surgical dressings, surgical sponges filters, catamenial napkins, tampons and diapers,...
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3551275 |
BRANCHED FIBER AND FIBROUS COMPOSITION FORMED THEREFROM
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3549789 |
POLYAMIDE PAPER PRODUCT AND METHOD OF MAKING
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3542715 |
FOAMED STRAND OF AN ORGANIC POLYMERIC MATERIAL
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3539446 |
OIL FILTER PAPER INCLUDING PHENOLIC RESIN AND CHROME OXIDE AND METHOD FOR MAKING SAME
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3532800 |
EXTRA HIGH VOLTAGE OIL-IMPREGNATED SYNTHETIC PAPER INSULATION AND CABLE
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