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Patent Searching and Data


Matches 701 - 750 out of 7,063

Document Document Title
WO/1994/011556A1
Fibrous structures containing immobilized particulate matter and processes for making them are disclosed. These structures may be used for filters and for fabrics including chemical defense garments and others. The fibrous structures hav...  
WO/1994/011574A1
A process for producing high grade polyethylene paper on conventional continuous wet-lay papermaking equipment. In particular, the process comprises preparing a furnish of 75-99 wt. % oriented polyethylene pulp, 0.5-15 wt. % fibrous stab...  
WO/1994/011577A1
The invention relates to a method of producing visible, preferably transparent or translucent, continuous streaks and/or delimited fields in paper in conjunction with forming a paper web in a paper machine. The method is characterized by...  
WO/1994/009190A1
Process and device for the production of fibrous starch materials through extrusion of a dispersion or aqueous solution of starch material in a flow of saline coagulant, in which the dispersion or aqueous solution is extruded through a m...  
WO/1994/008086A1
These is disclosed a filled cellulosic fiber composition, as well as a method for filling dried cellulosic fibers with an inorganic filler by contacting the dried fibers with a first salt solution, followed by contact with a second salt ...  
WO/1994/005854A1
A water-containing aromatic polyamide pulp which has been surface-treated with an epoxy resin and has a water-content of 30 to 95 % by weight. This pulp is produced by dispersing an aromatic polyamide pulp in an aqueous epoxy resin emuls...  
WO/1994/005841A1
Polymeric fibrids containing embedded activated carbon are useful as adsorbents.  
WO/1994/004751A1
A wet-laid nonwoven fabric comprises a blend of 1 to 50 % by weight of fibres of a water-swellable water-insoluble superabsorbent polymer and 99 to 50 % by weight of less absorbent fibres, for example fibres having an absorbency of less ...  
WO/1993/023248A1
A decorative static dissipative high pressure laminate having a plurality of consolidated thermosetting resin impregnated layers including a core and a decor surface layer to provide a surface resistance no greater than 2 x 109. The core...  
WO/1993/023620A1
Papers with improved tensile strength and increased porosity are obtained by heat treatment of calendered sheets of poly(p-phenylene terephthalamide) short fibers and poly(m-phenylene isophthalamide) fibrids.  
WO/1993/020270A1
A composite gasket material includes a fiber component (3-15 % by wt.), an elastomeric binder component (3-15 % by wt.), and a solid filer component (60-90 % by wt.). The material may additionally include a phenolic or epoxy resin (up to...  
WO/1993/019123A1
This invention relates to a composite board comprising inorganic fibers, a latex binder optional inorganic fillers, optional organic fibers, and, optionally, a second binder. Improved modulus of rupture and sag resistance are achieved by...  
WO/1993/016229A1
Provided is a process for making a paper based product which comprises first preparing a slurry of a cellulosic pulp; a particulate binder substantially insoluble in water, and an emulsion comprised of lecithin and a fatty acid or deriva...  
WO/1993/015269A1
A process is disclosed for producing the surface of door leaves, pieces of furniture or other pieces of furniture or decoration having a visible surface. A non-metallic coating layer is applied on the surface of a support core. A mash is...  
WO/1993/014150A1
A process for the production of structural and semi-structural composites formed by compressing sheets of nonwoven preform materials formed from aqueous blends of reinforcing fibers and thermoplastic fluoropolymer pulps. The pulps are fo...  
WO/1993/013940A1
A high-opacity cellulose-free synthetic paper (58) is formed from a wet-laid nonwoven web of thermoplastic fibers (44), all or most of which fibers are made of a predetermined polymeric material. The wet-laid web is dried to remove exces...  
WO/1993/011293A1
A process is disclosed for rendering shaped aramid and polybenzimidazole articles water repellent by grafting fluorinated compounds to the surface of the articles. The resulting grafted polymer and shaped articles made from the grafted p...  
WO/1993/006269A1
Water-dispersible polyester fiber and precursor filament tow whose surface is modified and water-dispersibility is improved by treatment of undrawn polyester filaments with a very small amount of caustic, when freshly-extruded, preferabl...  
WO/1992/022705A1
A novel sheet produced by a wet process consists of a blend of glass fibres and synthetic fibres, the synthetic fibres constituting a tridimensional network during the formation of the sheet and ensuring the latter's weldability. The syn...  
WO/1992/022285A1
The present invention provides materials suitable for use as a dressing in the care of wounds. The material is comprised of alginate fibers containing at least one biological agent that promotes the natural healing process of wounds. In ...  
WO/1992/020863A1
A cardboard with high resistance to tearing is proposed which, while meeting the requirements concerning the resistance to tearing, provides a cardboard which requires substantially less or no natural timber for its manufacture and the p...  
WO/1992/019804A1
Fibers of the polyterephthalamide of 4,4'-diaminodiphenic acid are strengthened and heat stabilized by a relaxed heat-treatment.  
WO/1992/014608A1
Provided is a penetration resistant article which comprises a particular wet-laid, non-woven structure. The wet-laid, non-woven structure is comprised of high strength, high melting fibers, such as aramid fibers, and a binder for binding...  
WO/1992/013135A1
Provided is a high tear strength, high tensile strength paper product. The product comprises a wood pulp fiber, a non-cellulosic synthetic fiber having a tear strength enhancing denier and length, and a binder material. The resulting pap...  
WO/1992/009744A1
Non-asbestos flexible sheet material suitable for use in gaskets for the cylinder head of an internal combustion engine is made by a paper-making process in which the aqueous slurry employed is substantially free from cellulose and conta...  
WO/1992/009648A1
Thermoplastically processable aromatic polyether amide of formula (I) in which the symbols Ar, Ar', Ar¿1?, Ar¿2?, R, R', Y, x, y and z have the meanings given below: Ar is a divalent substituted or unsubstitued aromatic or heteroaromat...  
WO/1992/007140A1
A dry liquid depth filter sheet for use in liquid depth filtration and a method for making the same. The filter sheet, generally greater than 1mm thick, is prepared from cellulose ester fibrils having a surface area of at least 5 square ...  
WO/1992/005311A1
Cellulosic pulp products bonded by a resin containing polyhydroxy acid with improved wet and dry strengths, and their preparation.  
WO/1992/005300A1
Pulps and short fibers containing polybenzoxazole and/or polybenzothiazole or copolymers thereof can be synthesized by freezing the wet fiber straight from the coagulation bath without drying, and chopping or grinding the frozen fiber to...  
WO/1992/004491A1
A process for preparing a unidirectional fiber web is disclosed, which comprises disposing several rovings side by side, each having a plurality of individual fiber filaments, and needling transversally said rovings, thereby opening the ...  
WO/1992/004502A1
A process of manufacture of a single layer thick dry felt through a wet process is disclosed, comprising using at least a part of a thermoplastic resin under powder form having a large mean grain size, preferably of at least 200 micromet...  
WO/1992/003283A1
The present invention relates to a method of manufacturing a fiber-reinforced plastics material. In this method, a foam of a binding agent containing powdery thermoplastic matrix is applied onto a reinforcing fiber web which is then drie...  
WO/1992/002354A1
A process for forming media capable of being transformed into structural thermoplastic composites by forming a thermoplastic polymer material into fibrets (1); mixing the fibrets (1) with high modulus fibers (2) in an aqueous suspension;...  
WO/1992/001829A1
A process for preparing subdenier fibers and structures thereof from isotropic polymer solutions is disclosed. The process comprises extruding a stream of the polymer solution into a chamber, introducing a pressurized gas into the chambe...  
WO/1991/017210A1
A method for manufacturing a substantially rigid water-dispersible article comprises the step of mixing together an ionic water-soluble film-forming polymer, a non-ionic water-soluble film-forming polymer, a chemically purified finely di...  
WO/1991/016119A1
Provided is a strong, flexible wet laid non-woven fibrous element comprised of polymeric fibrids as a binder. The polymeric fibrids have a softening point below the softening point of the fibers in the non-woven element, and are preferab...  
WO/1991/004855A1
A ballistic-resistant article of manufacture which comprises an agglomerated web of two types of discrete fibers. The first type is a fiber formed from polyolefin filament having, in the case of polyethylene filament, a weight average mo...  
WO/1991/002249A1
A water-disintegrable support material of the invention comprises paper made mainly of fibrous carboxymethylcellulose or carboxyethylcellulose with a degree of etherification of 0.1 to 1.0, wherein each of the fibrous cellulose derivativ...  
WO/1991/002120A1
A heat-bondable paper sheet (1) which is appropriate for backing of paper to be used for sliding door, shoji (paper sliding door), wall, and ceiling in a Japanese style house, for writing and drawing, or for plywood, and which can be hea...  
WO1990004066A3  
WO/1990/012169A1
The manufacture of sag-resistant, lightweight structural mineral panels on a foraminous support wire (40) is accomplished by forming a dilute aqueous dispersion of mineral fiber and/or aggregate and an anionically stabilized latex binder...  
WO1990005211A3  
WO/1990/006342A1
A novel composite board of mineral wool (22), perlite (24), and cellulosic newsprint fibers (23) for use primarily as a ceiling tile is disclosed. The board displays virtually no sag (less than 200 mils) when exposed to high temperature ...  
WO1990005211A2
A paper-like or cardboard-like raw material containing inorganic fibres, particulate inorganic additives and organic binders or flocculents is characterized in that (1) the particulate inorganic additives comprise 40-80 wt. % of the dry ...  
WO/1990/004666A1
Polyester fibers of type A having a single yarn fineness of up to 1 denier are obtained by melt-spinning a copolyester of an intrinsic viscosity of 0.35 to 0.50 containing 0.5 to 7 mol % of a sodium 5-sulfoisophthalate component and 0.5 ...  
WO/1990/004066A2
A cloth-like nonwoven material useful for wiping and having strength, toughness, abrasion resistance and resistance to certain solvents and/or chemicals is made from mixtures of wood pulp and staple fibers randomly distributed and hydrau...  
WO/1990/003262A1
The present invention relates to a base composition for the fabrication of a sheet product obtained by wet process, of the type comprising a mixture of polymer powder of given grain size and fibers, characterized in that it comprises a m...  
WO/1989/009187A1
Process for preparing dihydrous calcium sulphate with the appearance of elongated crystalline structures from hemihydrated calcium sulphate of the "beta" or "alpha" variety, characterized in that in order to obtain a controlled length an...  
WO1989008148A3  
WO/1989/008148A2
A process for preparing aqueous suspensions or slurries of cellulose microfibrils obtained from bacterial fermentation, in which said cellulose microfibrils are freed of the culture medium used for said bacterial fermentation through was...  

Matches 701 - 750 out of 7,063