Matches 51 - 100 out of 211 < 1 2 3 4 5 >
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5744506 Process for making absorbent foRam materials for aqueAous fluids made from high internal phase emulsions having very high water-to-oil ratios  
Low density collapsed absorbent foams materials that, upon contact with aqueous fluids, in particular urine, can expand and absorb these fluids. These low density foams typically have an expanded...
5726212 Polymer membrane having a high permeability for alkanol  
An alkanol permeation polymer membrane prepared by dissolving biocompatible, non-allergenic polymer capable of being dissolved in polar organic solvent in methylene chloride to prepare a first...
5710187 Highly cross-linked nanoporous polymers  
Condensation polymerization followed by a supercritical extraction step can be used to obtain highly cross-linked nanoporous polymers with high surface area, controlled pore sizes and rigid...
5696175 Preparation of bonded fiber structures for cell implantation  
A novel processing technique is reported to bond non-woven fibers and, thus, prepare structural interconnecting fiber networks with different shapes for organ implants. The fibers are physically...
5692939 Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids  
Absorbent foam materials that are capable of acquiring and distributing aqueous fluids, especially discharged body fluids such as urine. These absorbent foams combine relatively high capillary...
5652194 Process for making thin-wet absorbent foam materials for aqueous body fluids  
Relatively thin, collapsed, i.e. unexpanded, polymeric foam materials that, upon contact with aqueous body fluids, expand and absorb such fluids, are disclosed. A process for consistently obtaining...
5643512 Methods for producing ceramic foams using pre-ceramic resins combined with liquid phenolic resin  
The present invention is embodied in a method of producing a ceramic foam. The steps for producing the ceramic foam include first mixing a liquid pre-ceramic resin with a liquid phenolic resin,...
5618853 Molded structure comprising a thermoplastic, process for its production and its use  
A molded structure 1 produced by extrusion, such as an expanded plastic foam, a sheet, a profile or the like, contains at least 10% by volume of open cells 2, 4 which have a polyhedron-like shape...
5494939 Porous polymer material and process for production thereof  
The material contains interrelated micro- and anisodiametric macropores which latter are disposed mainly on peripheral portions. The volume ratio of micro- and macropores is 1:3-7. The process...
5462973 Separation of polyethylene terephthalate and polyvinyl chloride using supercritical carbon dioxide  
A method for separating co-mingled polymeric materials, in particular polyethylene terephthalate (PET) and polyvinyl chloride (PVC) is described. The process involves selectively dissolving a...
5403870 Process for forming a porous particle of an absorbent polymer  
A porous structure of a water-swellable, water-insoluble polymeric material which porous structure possesses improved free swell capacity and is able to demonstrate said improved free swell...
5384337 Poromeric material having uniformly distributed electrets for maintaining an electrostatic charge  
A poromeric material for maintaining an electrostatic charge is provided, the material including a matrix of fibers, a polymeric binder for binding the matrix, and electrets present substantially...
5362761 Process for fabricating porous silicone product  
A process of fabricating a porous silicone product utilizing a silicone emulsion capable of forming an elastomer by removal of water therefrom. The silicone emulsion comprises a water emulsion of...
5362762 Process to prepare low density porous crosslinked polymeric materials  
Stable high internal phase water-in-oil emulsions containing polymerizable vinyl monomers, crosslinking monomers and initiators, useful in preparing low density porous crosslinked polymeric foams,...
5358974 Process for preparing low density porous crosslinked polymeric materials  
In a process for the preparation of a low density porous crosslinked polymeric material by polymerizing a water-in-oil high internal phase emulsion, curing time of the monomers in the emulsion can...
5331015 Absorbent foam materials for aqueous body fluids and absorbent articles containing such materials  
Disclosed are absorbent foam materials suitable for use as or in the absorbent cores of absorbent articles, such as diapers which absorb and retain aqueous body fluids. Such foam materials comprise...
5328936 Polymerization process for making porous polymeric particles  
A process for making porous polymeric particles having high surface area includes suspending a discontinuous organic phase in an continuous aqueous phase, wherein the organic phase includes an...
5306761 Hygroscopic polyamide fiber  
A polyamide fiber comprised of (A) a thermoplastic aliphatic polyamide having copolymerized therein a polyalkylene oxide unit and having a melting point of at least 160° C., and (B) a...
5252621 Supports for active entities  
A polymeric bead has now been developed to act as a support for other entities having a volume mean diameter of up to 250 microns and having a surface provided with pores which form at least 10% by...
5252620 Microcellular foams  
Supercritical drying has distinct advantages in generating microcellular materials. The dimensional stability of the polymer is not affected on drying because the supercritical process does not go...
5229209 Preparation of vesiculated core/shell polymeric particles  
A process for the manufacture of core/shell polymer particles comprises forming a core particle containing acid functionality, a first shell around said core of a copolymer of a nonionic...
5225536 Particles of gelatin and amino acid to be blended in resins  
Fine particles of gelatin and amino acid used in the present invention are particularly suitable for use in combination with resins. Gelatin particles used in the present invention have the...
5200433 Process for preparing low density porous crosslinked polymeric materials  
The present disclosure is directed to using a blend of sorbitan esters as a surfactant to produce a stable water-in-oil high internal phase emulsion in the preparation of a low density porous...
5130343 Process for producing uniform macroporous polymer beads  
A process for producing macroporous polymer beads from a multiphase emulsion using soluble polymer particles as the primary porogen is disclosed. The beads produced are of uniform size and shape.
5102917 Porous polysulfone media suitable for filtration  
A porous polysulfone membrane and process for the preparation of porous polysulfone media suitable for use in filtration comprises blending polysulfone with a particulate solid or with said...
5071645 Process of producing an active agent delivery device  
An active agent delivery device comprises (a) microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided...
5066784 Method for using substrate in peptide syntheses  
A substrate comprises a porous polymeric material having a porosity of at least 75% and comprising pores having a diameter within the range 1 to 100 μm and being interconnected by a plurality of...
5059630 Methods for manufacture of porous resin moldings, ultrafine fibers and ultrafine fiber nonwoven fabrics  
This invention relates to methods for porous resin moldings, for ultrafine fibers for ultrafine fiber nonwoven fabrics. In essence, the invention comprises providing a molding, spun fiber or crude...
5055494 Method of improving the resistance of polyphenylene ether articles to sunlight, and articles improved by this method  
The resistance to discoloring of formed articles from polymer mixtures which comprise a polyphenylene ether and at least a second polymer can be improved by treating the surface of the formed...
5035886 Active agent delivery device  
An active agent delivery device comprises (a) microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided...
4983293 Semipermeable membrane and process for preparing same  
The semipermeable membrane contains a polyarylate resin and a polysulfone resin as a major membrane material and has a fibrilliform structure with a high mechanical strength and has a water...
4970835 Wall anchoring device and method of installation  
A wall anchoring device for straightening a bowed foundation wall, and a method of anchoring the foundation wall to the surrounding soil, including an elongate member engaging a hollow tube at one...
4965289 Substrate and process for making a substrate  
A substrate comprises a porous polymeric material having a porosity of at least 75% and comprising pores having a diameter within the range 1 to 100 μm and being interconnected by a plurality of...
4952651 Highly crosslinked polymer particles and process for producing the same  
Highly crosslinked polymer particles, which may be porous, consisting essentially of a non-hydrophilic polymer can be produced by adding a polymerizable monomer mixture comprising at least 20% by...
4868222 Preparation of asymmetric membranes by the solvent extraction of polymer components from polymer blends  
Asymmetric membranes are prepared by selectively treating a major surface of an incompatible polymer blend prepared by melt blending having at least one extractable polymer component and then...
4859712 Silicone foam and method for making it  
A method to make a silicone foam. A layer of crystalline material is embedded in a layer of uncured silicone. The crystalline material is closely packed in crystal-to-crystal contact, the crystals...
4859715 Microporous poly (arylether ketone) article  
This invention provides a method for the preparation of an article from a blend of at least two molecularly compatible polymers by treating the blend with a solvent which is a solvent for one of...
4849457 Method of producing plastic sheet with porous surface  
A method of producing a plastic sheet with a porous surface layer suitable for use as, for example, a recording medium on which characters and images are printed by ink jet or thermal-transfer...
4839395 Absorbing article  
The present invention provides a process for manufacturing a porous polymer containing many voids in its interior, which has a small apparent specific gravity and is superior in terms of water...
4833172 Stretched microporous material  
Precursor microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided water-insoluble siliceous filler, and...
4810384 Hydrophilic PVDF semipermeable membrane  
Hydrophilic semipermeable membranes which retain their capacity for filtration, even after drying, and which are well adapted for either ultrafiltration or microfiltration, are comprised of at...
4788225 Low density porous elastic cross-linked polymeric materials and their preparation  
This invention discloses a novel elastic cross-linked porous polymer having a porosity in the range 75 to 98% internal phase volume and having interconnected pores, said pores having a mean pore...
4788226 Polyamide membranes  
A microporous membrane suitable for use in microfiltration. The membrane is a hydrophilic skinless sheet, formed of polytetramethylene adipamide, either alone, or in admixture with at least one...
4775702 Inversion process for producing low-skin porous friable particles of crosslinked PVC resin  
Porous particles of crosslinked PVC are disclosed. The particles are skinless and have a fast powder mix time. Processes to produce the novel particles are also disclosed.
4755540 Polymer membrane  
Porous membranes of aromatic polymer (preferably ether ketone) are prepared with pore size and surface area allowing use in place of asbestos membranes in hot alkaline electrolysis cells. The...
4742086 Process for manufacturing porous polymer  
The present invention provides a process for manufacturing a porous polymer containing many voids in its interior, which has a small apparent specific gravity and is superior in terms of water...
4721732 Polymeric articles and methods of manufacture thereof  
This invention provides a method for the preparation of an article from a blend of at least two molecularly compatible polymers by treating the blend with a solvent which is a solvent for one of...
4717479 Hydrophilized porous polyolefin membrane and production process thereof  
The present invention discloses a hydrophilized porous polyolefin membrane with a polymer of a monomer, which has an HLB value of 2-20, held on at least a part of the pore walls of a porous...
4717800 Expansible macromolecular material and porous macromolecular membrane  
An expansible macromolecular material is produced by a method which comprises mixing an aqueous polyvinyl alcohol solution, an acidic aqueous macromolecular electrolyte solution, and a basic...
4715961 Urea adsorbent  
A urea adsorbent and a method for its production are disclosed, the adsorbent comprising hollow microspheres each having an outer layer formed of a urea-permeable polymer and an inner layer formed...
Matches 51 - 100 out of 211 < 1 2 3 4 5 >