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Class 521/180 - Cellular product derived from a phenol, phenol ether, or inorganic phenolate reactant


Subclass of Class 521 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter involving a cellular polymer derived from
No. of patents: 217
Last issue date: 05/06/2008


1            
NumberTitleIssue Date
7368526Functionalized porous poly(aryl ether ketone) materials and their use
Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional primary amines are primary aliphatic amines or substituted hydrazines ...
05/06/2008
7368502Hydroxyphenyl cross-linked macromolecular network and applications thereof
A dihydroxyphenyl cross-linked macromolecular network is provided that is useful in artificial tissue and tissue engineering applications, such as artificial or synthetic cartilage. The network is made by first providing a polyamine or polycarboxylate macromolecule ...
05/06/2008
7291653Preparation of hydrophobic organic aeorgels
Synthetic methods for the preparation of hydrophobic organics aerogels. One method involves the sol-gel polymerization of 1,3-dimethoxybenzene or 1,3,5-trimethoxybenzene with formaldehyde in non-aqueous solvents. Using a procedure analogous to the preparation of res...
11/06/2007
7285575Metal-doped organic gels and method thereof
Disclosed herein is a sol-gel polymerization process for synthesizing metal-doped organic gels. The process polymerizes metal salts of hydroxylated benzenes or hydroxylated benzene derivatives with alkyl or aryl aldehydes to form metal-doped, wet, organic gels. The ...
10/23/2007
7176273Functionalized porous poly(aryl ether ketone) materials and their use
Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional primary amines are primary aliphatic amines or substituted hydrazines ...
02/13/2007
7109249Composition containing a cross-linkable matrix precursor and a poragen, and porous matrix prepared therefrom
A suitable cross-linkable matrix precursor and a poragen can be treated to form a porous cross-linked matrix having a Tg of greater than 300° C. The porous matrix material has a lower dielectric constant than the corresponding non-porous matrix material,...
09/19/2006
7081208Method to build a microfilter
Methods are provided for making microfilters by subtractive techniques which remove a component or part of a filter material to form pores in the filter material and additive techniques which deposit a filter material onto a porous underlying substrate. All the meth...
07/25/2006
7063738Permeable cements
A permeable cement composition comprises an aqueous slurry of a hydraulic cement including a water-immiscible dispersed fluid phase, such as oil or gas, and a hollow particulate material, the hollow particulate material being one which breaks down in the presence of...
06/20/2006
7005181Organic, open cell foam materials, their carbonized derivatives, and methods for producing same
Organic, small pore area materials (“SPMs”) are provided comprising open cell foams in unlimited sizes and shapes. These SPMs exhibit minimal shrinkage and cracking. Processes for preparing SPMs are also provided that do not require supercritical extraction. The...
02/28/2006
6946578Process for producing phenoxyphosphazene compound, flame-retardant resin composition, and flame-retardant resin molding
An improved phenoxyphosphazene compound is produced by treating a phenoxyphosphazene compound with (a) at least one adsorbent selected from activated carbon, silica gel, activated alumina, activated clay, synthetic zeolite and macromolecular adsorbents, (b) at least...
09/20/2005
6887915Precision casting and dead-mold casting in plastic/carbon aerogels
The present invention relates to a molding material for the precision casting and dead-mold casting of metals or metal alloys comprising plastic and/or carbon aerogels, and a process for the preparation of such molding materials. The molding material comprise...
05/03/2005
6743846Preparation of flame retardant expandable poly(arylene ether)/polystyrene compositions
A non-halogenated, fire retardant, expandable poly (arylene ether)/polystyrene blends is produced by the method comprising, in a first step, forming a fire retardant mixture comprising a non-halogenated fire retardant, poly(arylene ether) resin and polystyrene resin...
06/01/2004
6689295Carbonaceous porous body and method for producing the same
The present invention provides a method of manufacturing an exfoliated graphite/phenol resin composite foam of a porosity of 50-95%, a density of 0.1-0.8 g/cm3, by forming under contact pressure or reduced pressure at a temperature of 140-200°...
02/10/2004
6613809Metal-doped organic gels and method thereof
Disclosed herein is a sol-gel polymerization process for synthesizing metal-doped organic gels. The process polymerizes metal salts of hydroxylated benzenes or hydroxylated benzene derivatives with alkyl or aryl aldehydes to form metal-doped, wet, organic...
09/02/2003
6599953Precision casting and dead-mold casting in plastic/carbon aerogels
The present invention relates to a molding material for the precision casting and dead-mold casting of metals or metal alloys comprising plastic and/or carbon aerogels, and a process for the preparation of such molding materials. The molding material comp...
07/29/2003
6583205Flame retardant expandable poly(arylene ether)/polystyrene compositions and preparation thereof
A non-halogenated, fire retardant, expandable poly (arylene ether)/polystyrene blends is produced by the method comprising, in a first step, forming a fire retardant mixture comprising a non-halogenated fire retardant, poly(arylene ether) resin and polyst...
06/24/2003
6506808Microcellular thermoset foams and method for producing the same
Microcellular rigid foams with a matrix consisting of cross-linked duromers, especially of polytriazine resins, and with an apparent density of 20 to 95 percent of the density of the compact matrix material. The rigid foams are highly stable and highly te...
01/14/2003
6391934Manufacturing foams by stress-induced nucleation
The invention disclosed provides a method for inducing nucleation in a polymer by subjecting the polymer containing dissolved gas to an external stress generated, for example, by applying hydrostatic or mechanical pressure. The applied stress restricts th...
05/21/2002
6380271Material for electrical insulating organic film, electrical insulating organic film and process for the preparation thereof
The present invention provides a material for electrical insulating organic film, superior in electrical properties, thermal properties and low water absorption; an electrical insulating organic film made from the material; and a process for production of...
04/30/2002
6218441Melt-spun polysulfone semipermeable membranes and methods for making the same
The present invention discloses, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising (1) a polysulfone compound, (2) a solvent, such as sulfolane, antypyrine, δ-valerolactam, diethyl phthalate,...
04/17/2001
6100359Ablative polyurea foam and prepolymer
The present invention relates to an ablative fire resistant hydrophilic polyurea foam made from low molecular weight polyols capped with an isocyanate, with the polyol mixture including a fire retardant polyol that preferably includes carborane disilanol,...
08/08/2000
6046249Dimensional stabilizing, cell opening additives for polyurethane flexible and rigid foams
A method for preparing a polyurethane flexible or rigid foam by reacting an organic polyisocyanate with a polyol in the presence of urethane catalyst, water as a blowing agent, optionally a silicone surfactant, and a cell opener characterized in that the ...
04/04/2000
6031012Curable composition, foam produced therefrom, and process for producing the foam
Provided is a curable composition comprising (A) a phenolic compound having a carbon-carbon double bond, (B) a compound having an SiH group, and (C) a foaming agent. The composition can be foamed and cured at room temperature or under heat at relatively l...
02/29/2000
6013748Aromatic ester compound and second-order non-linear optical material therewith
Disclosed is a novel aromatic ester compound represented by the general formula ##STR1## in which Pn is a 1,4-phenylene group, R1 is an alkyl group having 1 to 4 carbon atoms, R2 is a group selected from the group consisting ...
01/11/2000
5994423Urine absorber, method for producing it, urine absorbing method utilizing it and portable toilet
A urine absorber superior in smell extinguishing and urine absorption properties and in absorption stability is to be prepared. To this end, a polymer of styrene and/or conjugate diene and acrylonitrile, containing a predetermined amount of a sulfonide an...
11/30/1999
5994418Hollow polyimide microspheres
A shaped article composed of an aromatic polyimide has a hollow, essentially spherical structure and a particle size of about 100 to about 1500 μm, a density of about 1 to about 6 pounds/ft3 and a volume change of 1 to about 20% by a pressure ...
11/30/1999
5989467Ceramic foam precursor resin composition
The present invention is embodied in a ceramic foam made by mixing a liquid pre-ceramic resin and a liquid phenolic resin, allowing the resultant mixture to chemically foam, curing the mixture for a time and at a temperature sufficiently to convert the mi...
11/23/1999
5962539Process and equipment for drying a polymeric aerogel in the presence of a supercritical fluid
A process for obtaining an aerogel from a polymeric material that is in the form a sol-gel in an organic solvent, by exchanging the organic solvent for a fluid having a critical temperature below a temperature of polymer decomposition, and supercritically...
10/05/1999
5958989Highly asymmetric ultrafiltration membranes
The present invention relates to highly asymmetric polymer membranes for ultrafiltration (UF), and to a simplified method of their manufacture. Disclosed herein are UF membranes with a high degree of asymmetry between the size of pores at the skin face of...
09/28/1999
5900320Foamed plastic and method of manufacturing the same
The present invention aims to improve soundproof and heat insulating properties of a foamed plastic by reducing internal cells pressure inside foamed resins. A base polymer such as a polyester-based polyol and a volatile foaming agent having an conjugate ...
05/04/1999
5886059Highly asymmetric polyethersulfone filtration membranes
Highly asymmetric polyethersulfone membranes prepared from a stable, clear, homogeneous solution or stable colloidal dispersion of polyethersulfone are described. The membranes have a porous skin possessing a high density of skin pores with an average dia...
03/23/1999
5830987Amino-acrylate polymers and method
An amino-acrylate polymer is prepared by the reaction of an aliphatic hydroxyl polyacrylate monomer, like pentaerythritol triacrylate, with a polyamine like a hexyldiamine to provide a rigid fast gelling and curing polymer, which polymer may be modified w...
11/03/1998
5789452Polyarylene sulfide foams and a process for their production
A foamed polyarylene sulfide according to the invention has a density which is reduced by at least 50% compared with the theoretical density of nonfoamed material, and is expediently produced by subjecting a polyarylene sulfoxide as such or a mixture of o...
08/04/1998
5786397Foamable molding compositions
Molding compositions or mixtures comprising a high-temperature-resistant polymer and at least one polymer containing sulfoxide groups are used for the production of a foam by exposure to heat. The foam is employed for heat-resistant insulating layers....
07/28/1998
5759691Phosphorus-modified coating compositions, a process for their preparation, and their use
The invention relates to an expandable, halogen-free, flame-retardant coating composition comprising epoxy resins, polyphosphoric/polyphosphonic esters and a curing agent, which composition comprises from 75 to 95 parts by weight of epoxy resin and from 5...
06/02/1998
5759692Phosphorous-modified coating compositions, a process for their preparation, and their use as an intumescent coating
The invention relates to expandable, halogen-free, flame-retardant coating compositions comprising epoxy resins, polyphosphoric esters and a curing agent, which composition comprises from 75 to 95 parts by weight of epoxy resin and from 5 to 25 parts by w...
06/02/1998
5760162Preparation of poly-o-hydroxyamides and poly-o-mercaptoamides
In a process for the preparation of poly-o-hydroxyamides and poly-o-mercaptoamides, a bis-o-aminophenol or a bis-o-aminothiophenol is reacted at a temperature of ࣘ0° C. with a mixed dianhydride of a dicarboxylic acid and a sulfonic acid with the follow...
06/02/1998
5716999Polyarylene sulfide foams and a process for their production
A foamed polyarylene sulfide according to the invention has a density which is reduced by at least 50% compared with the theoretical density of nonfoamed material, and is expediently produced by subjecting a polyarylene sulfoxide as such or a mixture of o...
02/10/1998
5710187Highly 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 structural integrity. The invention polymers are useful for appli...
01/20/1998
5708040Method for preparing porous membranes utilizing water or organic vapor adsorption
The present invention describes a method for preparing an asymmetric porous membrane by a dry-wet phase inversion method, which comprises contacting a cast or spun polymer solution with water or organic vapor prior to immersing into the non-solvent precip...
01/13/1998
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