Matches 251 - 300 out of 539 < 1 2 3 4 5 6 7 8 9 10 11 >
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4608123 Method of minimizing untoward effect of contaminants, such as pitch, in the papermaking operation  
Disclosed is a method of minimizing the untoward effect of contaminants, such as pitch and related materials, in the papermaking operation. An aqueous dispersion of water-dispersible synthetic...
4608361 Catalyst carriers and process for preparation of the same  
A process is disclosed for producing a sheet for a catalyst carrier for vapor-phase reactions which comprises mixing highly heat resistant ceramic fibers, organic fibers and an organic binder to...
4595457 Oil-impregnatable insulating board  
An aqueous slurry comprising fibrous particles of a heat-resistant aromatic polymer and short fibers made of said polymer or insulating inorganic short fibers, or a mixture thereof, is made into a...
4552618 Stabilized absorbent boards  
An absorbent material comprising hydrocolloidal fibers provided in board form having substantial structural integrity both in the dry state and after being wetted with body fluids. The board...
4549931 Inorganic binders for articles formed from fibers  
The present invention is directed to the production of articles exhibiting high mechanical strengths which are relatively insensitive to changes in relative humidity. The articles consist...
4548678 Flexible sheet material and articles made therefrom  
Flexible sheet material suitable for use in the manufacture of wear-resistant laminated articles such as bearings and rotor blades comprises particles of graphite and heat-resistant web-forming...
4529663 Flexible, asbestos-free gasket material  
Non-asbestos flexible sheet material suitable for use in gaskets for the cylinder head of an internal combustion engine is made by dewatering on a water-permeable conveyor a layer of aqueous slurry...
4529481 Synthetic polyester pulp and process for preparing same  
Synthetic polyester pulps are provided which are comprised of substantially fibrous fibrils made of a linear aromatic polyester, said fibrils (i) having branches at least in part thereof, (ii)...
4519873 Process for producing fibrous sheet  
A heat resistant thin paper excellent in electrical insulating property can be obtained by subjecting pulp-like particles of aromatic polyamide or aromatic polyamide-imide, which have a low...
4515656 Low density nonwoven sheets  
Coherent expanded nonwoven sheets having a density of less than 0.16 g/mL are comprised of fibrids of a wholly synthetic polymer, preferably not melting below 130° C., and optionally containing up...
4512849 Wet-laid, non-woven fabrics  
An improved process for forming a non-woven fabric by wet-laying, on paper making equipment, staple length, synthetic fibers having a length to diameter ratio of about 400 to 3000, and an improved,...
4508595 Process for manufacturing of formed products  
A method of making a shaped cellulosic paper or paperboard, comprising the steps of: (a) diluting cellulosic fibers with water to form an aqueous suspension of less than 10 percent by weight...
4498957 Aromatic polyamide paper-like sheet and processes for producing the same  
An aromatic polyamide paper-like sheet having excellent heat- and chemical- resistances and electric insulating properties, comprises an artificial pulp ingredient comprising a number of amorphous...
4496427 Preparation of hydrophilic polyolefin fibers for use in papermaking  
Water-dispersible, uniformly hydrophilic polyolefin fibers are prepared by treatment of an aqueous suspension of spurted polyolefin fibers with an aqueous solution of a water-soluble ionized...
4495030 Filter paper  
A high efficiency, toxic vapor absorptive non-woven filter material comprising a wet-laid sheet containing fibrillated binder fiber, active carbon and submicron size glass fiber.
4493751 Polyoxymethylene fibrids, a process for their production and their use  
The invention relates to polyoxymethylene fibrids with a reduced specific viscosity of 0.4 to 2.0 dl/g, a specific surface area of 50 to 200 m 2 /g and a freeness of 30° to 80° SR. The fibrids...
4491502 Molding of paperboard containers  
Heat resistant ovenable paperboard containers are formed from wet sheets consisting essentially of cellulose fibers and containing 50 to 100 weight percent water based on the dry weight of the...
4481075 Sheet products and preparation process thereof  
New process, for preparing by means of a paper manufacturing technique, a thermoplastic sheet reinforced with cellulose fibres, wherein a thermoplastic powder and cellulose fibres are used in...
4472241 Co-refining of aramid fibrids and floc  
An aqueous slurry of 0.2 to 2.0 weight percent aramid fibrids and aramid floc in a weight ratio of 0.25 to 20, respectively, is refined in a disc refiner having grooved facing plates with surface...
4468336 Low density loose fill insulation  
A low settled density loose fill heat insulation for building structures is formed by the addition to cellulose insulation of staple fibers selected from the group polypropylene, acetate,...
4464225 Method and machine for fabricating building boards  
A method and machine for fabricating building boards or the like, especially asbestos cement plates, contains a turbulence device having at least one channel with a step-shaped widened portion. The...
4460647 Fibrets suitable for paper opacification  
A process is disclosed for the preparation of highly pigmented fibrets, the product produced thereby and paper products containing the highly pigmented fibret. The fibret has a surface area of from...
4458042 Absorbent material  
Disclosed is absorbent material composed of a consolidated blend of spurted polyolefin pulp, treated with an anionic or nonionic wetting agent substance having a molecular weight less than about...
4455195 Fibrous filter media and process for producing same  
The disclosure relates to a novel and highly superior filter media formed of random-laid, lignin-containing fibers, and to a process for manufacture of the filter media. The process involves...
4455237 High bulk pulp, filter media utilizing such pulp, related processes  
The disclosure related in part to a novel and highly superior high bulk pulp formed of lignin-containing fibers, and to process conditions for manufacture of the pulp. The process involves...
T103903 Flooring felt compositions and method for preparing the same  
4426470 Aqueous method of making reinforced composite material from latex, solid polymer and reinforcing material  
Reinforced polymer composites having a uniform mix of fiber, polymer and binder and having good physical properties are prepared by forming dilute aqueous slurries of a solid heat fusible organic...
4424255 Backing sheet for cushioned floor  
Disclosed is improvement of heat-stability of a backing sheet for cushioned floor during foaming step of gelled polyvinyl chloride resin. The backing sheet comprises a thermoplatic resin fibrous...
4405407 Fibrous materials  
Fibrous materials in the form of shaped articles such as paper are made from heat-cured amino-formaldehyde resin fibres having a degree of cure of at least 93%, optionally in admixture with other...
4398995 Papery product  
A papery product consisting essentially of a fibrous web, at least part of said web being made of a wholly aromatic polyamide fiber having a readily soluble skin layer and a sparingly soluble or...
4392916 Paper-making process with regenerated chitin fibers  
The invention provides a novel method for making paper of regenerated chious fibers without the use of any binder materials. By virtue of the inherent physiological inertness of the chitinous...
4387144 Battery separator material  
A battery separator having a low electrical resistance after extended use is made by thermal consolidation and thermal embossing of a paper web formed from a furnish containing a synthetic pulp the...
4378271 Starch bound paper  
Non-asbestos alternatives to starch-bound asbestos papers comprise a matrix of unfired ball clay which is reinforced by vitreous fibres derived from wool-form materials and by organic web-forming...
4373992 Non-asbestos flooring felt containing particulate inorganic filler, a mixture of fibers and a binder  
Flooring felt containing glass fibers, cellulosic fibers, synthetic fibers, particulate inorganic filler, latex binder and calcium hydroxide.
4371441 Process and apparatus for the separation of immiscible liquid mixtures  
Process and apparatus for the separation of mixtures of liquids insoluble in each other, e.g., water and oil, where the mixture of liquids is brought into contact, from one side, with a fabric...
4350567 Method of producing a building element  
A method for manufacturing a high impart strength carbonate building element is disclosed. Solids and water are mixed to produce a slurry in which the solids consist essentially of at least one...
4347104 Moisture-insensitive electrically-conductive paper  
Electrically-conductive paper comprising a mixture of electrically-conductive fibers, wood pulp and synthetic wood pulp, the ratio between the two types of pulp being so selected that the...
4344775 Method for separating gases liquid droplets and/or solid particles from gases or vapors  
Undesired substances are removed from a gas or vapor stream containing same by a gas-vapor treating mat composed of glass fibers intermixed with micro-bits of any of an expanded thermoplastic...
4340442 Starch fibrids useful in enhancing the physical properties of paper, and process of preparing same  
Starch fibrids useful in enhancing the physical properties of non-woven webs, e.g., paper, are produced by a process which comprises providing an aqueous, alkaline solution of a water-insoluble...
4331508 Photographic support  
A photographic support comprises a paper coated on both sides with polyethylene resin film. To impart the paper a desirable stiffness and improved cutting property, polyvinyl alcohol fibers which...
4319956 Nonwoven web material for medical towels and the like  
A new and improved, highly absorbent, nonwoven web material that exhibits a cytotoxicity level of zero is provided for use as a disposable medical towel and the like. The web material possesses a...
4318774 Composite nonwoven web  
The properties of nonwoven glass fiber and nonwoven polymer fiber are combined efficaciously in a composite web that comprises two component webs of particular composition. One of the component...
4308542 Ink jet recording method  
An ink-jet recording method is described comprising applying an ink-jet onto a synthetic pulp paper and then heat-treating the synthetic pulp paper to fuse synthetic pulp, to obtain an ink-jet...
4304873 Preparation of expanded flexible polyurethane foam micro-bits  
The preparation of flexible polyurethane foam micro-bits by the comminution of a flexible polyurethane foam in the presence of a compatible protective cooling fluid under specific comminuting steps...
4293378 Enhanced wet strength filter mats to separate particulates from fluids and/or coalesce entrained droplets from gases  
A glass fiber filter mat possessing excellent wet strength which is in the form of a non-woven matrix of glass micro-fibers including polymer micro-bits derived, for example, from a non-brittle...
4291781 Speaker diaphragm and method of preparation of the same  
A diaphragm for a speaker which is prepared by heating a conjugated sheet obtained by paper-making polyethylene short fibers with other short fibers which have a high modulus of elasticity, such as...
4289580 Heat seal fibrous web and method of its manufacture  
Improved infusion web material for tea bags and the like is provided by using synthetic pulp in the heat seal phase and forming therein an array of a large number of small discrete craters. These...
4284759 Preparation of aminoplast resin particles  
Aminoplast resin pigments for paper making comprise large surface area (>5m 2 /g) particles, preferably of size below 200 μm, made from an aminoplast resin made by condensing formaldehyde with...
4279695 Process for the manufacture of composite materials  
In a process for the manufacture of composite material comprising a matrix of set inorganic binder (e.g. Portland cement) and reinforcing fibre (e.g. carbon fibre), by de-watering a slurry...
4279696 Process for forming friction materials  
An improved process for forming a friction material having metal fibers evenly dispersed in the body of the material. The raw materials for production of the friction material are dispersed in an...
Matches 251 - 300 out of 539 < 1 2 3 4 5 6 7 8 9 10 11 >