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7368483 |
Porous composition of matter, and method of making same
A low-k organic dielectric material having stable nano-sized porous is provided as well as a method of fabricating the same. The porous low-k organic dielectric material is made from a composition...
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6812263 |
Polyvinyl chloride-based elements for floor cleaning units
Formulations of polyvinyl chloride blended with nitrile rubber are provided. These formulations have been found to be useful in floor cleaning units, and provide a cost savings benefit, while...
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6762212 |
Extruded styrene resin foams and methods for producing the same
An extruded styrene resin foam obtained by extrusion-foaming of a styrene resin and excellent in environmental compatibility and excellent in flame retardant property and thermal insulating...
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6602924 |
Foamed gypsum compositions
A foamed gypsum composition is provided. The composition may be used in making a crosslinked, foamed gypsum product. The composition is comprised of gypsum, foaming agents, epoxy resin, and a...
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6569912 |
Extruded styrene resin foam and process for producing the same
An extruded styrene resin foam obtained by extrusion-foaming of a styrene resin and excellent in environmental compatibility and excellent in flame retardant property and thermal insulating...
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6469078 |
Molecular weight increase and modification of polycondensates
This invention relates to a process for increasing the molecular weight and/or for the modification of polycondensates during the processing in the melt, which comprises adding to the...
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6451348 |
Method of manufacturing porous matrix-type controlled release systems using emulsion technique
A method of manufacturing a porous matrix-type drug delivery system is provided. It comprises the steps of: dispersing, stirring, and emulsifying an aqueous solution of a drug in an organic solvent...
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6323269 |
Mineral containing thermoplastic granules
A mineral containing thermoplastic granule for incorporation in a thermoplastic material to produce a thermoplastic end product, the granule comprising at least 50% by weight of an inorganic...
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6278021 |
Reduced particle-size urea
A process for producing an urea preparation of reduced particle-size and narrow particle-size distribution by using an air milling process is provided. Also provided is an urea preparation of...
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6214260 |
Conductive elastomeric foams by in-situ vapor phase polymerization of pyrroles
A conductive elastomeric foam composite is presented, comprising an elastomer foam and polypyrrole, thiophene, or aniline and derivatives thereof. The foam is manufactured by first diffusing an...
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6184262 |
Benzotriazole stabilizers for polyols and polyurethane foam
Polyether and polyester poloyols and polyurethane foams are stabilized by including therein stabilizers selected from (1) diphenylaminomethylbenzotriazole substituted by alkyl or phenylalkyl groups...
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6172127 |
Preparation of polyimide foam
The invention herein relates to a process of preparing a novel polyimide foam having superior heat-resistance, flame retardancy, homogeneous size and distribution of cells, and low density, wherein...
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6169123 |
Non-adherent nasal, sinus and otic packing and method for processing sponge materials in fabrication of packings
Nasal, sinus and otic packings exhibiting a less adherent surface when in contact with tissue and being less traumatic on removal are prepared. In a first embodiment, polyvinyl acetal foamed...
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6146892 |
Fibrillar matrices
Methods and compositions are described that provide three-dimensional fibrillar matrices useful as, among other things, structural prosthetics and scaffolds for cells. The porous fibrillar matrices...
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6031012 |
Curable 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...
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6013689 |
Method for making a closed-cell phenolic resin foam, foamable composition, and closed-cell phenolic resin foam
Provided is a foamable, phenolic resin composition adapted to form a closed-cell phenolic resin foam under substantially atmospheric pressure. The foamable, phenolic resin composition is formulated...
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5852064 |
Foamed and cross-linked phenolic resin and method for making same
A phenolic foam having exceptional absorption capacities for pollutants such as hydrocarbons and other substances is described. The foam is hydrophobic and is capable of absorbing such substances...
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5847035 |
Substituteed tetrahydropyrimidine derivatives and their use as polymerization inhibitors for vinyl aromatic compounds
The present invention is directed to substituted tetrahydropyrimidine derivatives of the general formula ##STR1## wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 , which may be the same or...
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5744507 |
Foamable organosiloxane compositions curable to silicone foams having improved adhesion
A foamable, curable organosiloxane composition comprising an alkenyl-functional polyorganosiloxane, an organohydrogensiloxane, a blowing agent, a platinum catalyst and an adhesion promoter...
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5741825 |
Thermal insulating foamed material and method for manfacturing the same
A polyurethane foam is constituted by using a blowing agent selected from the group consisting of iodofluorohydrocarbons, perfluoroalkenes and hydrogen-containing fluoromorpholine derivatives....
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5670551 |
Crosslinked foamed body and a process for its production
A crosslinked foamed body obtained by subjecting a rubber compounded product comprising (A) a chlorinated ethylene/α-olefin copolymer rubber, (B) a triazinethiol as a vulcanization agent, (C) an...
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5543449 |
Stabilized flexible PVC
A high degree of stabilization of flexible PVC is achieved by using a perchlorate and a terminal epoxide compound.
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5539006 |
Rigid foams with improved insulation and physical properties
Rigid polyurethane foams are produced by reacting an organic polyisocyanate with a sucrose-based polyether polyol in the presence of a catalyst and a blowing agent selected from hydrogen-containing...
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5527876 |
Process for the production of plastics containing amide groups
The invention relates to a process for the production of plastics containing amide groups with elimination of CO 2 by reaction of polyfunctional isocyanates, carboxylic acids and, optionally,...
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5462975 |
Rubber compositions for sponge rubber
A rubber composition for sponge rubber which contains following components (A).about.(E) and satisfies the following requirements that the ratio by weight of (A)/(B) is 30/70.about.99/1 and the...
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5422415 |
Polyether polyol and polyurethane compositions protected against oxidation and core scorching
Described are compositions protected against thermal and oxidative degradation that comprise A) a polyether polyol or mixtures of such polyols, B) at least one benzofuranone derivative of...
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5386838 |
High surface area iron-magnesium smoke suppressive compositions
A high surface area oxidative catalyst smoke suppressive composition, smoke suppressive articles, and method of making such compositions and articles are disclosed. The smoke suppressive...
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5346927 |
Blowing agents of the tetrazoles and their derivatives
Blowing agents of tetrazoles and their derivatives which have a melting point over 200° C. and are used to manufacture the high quality foaming thermoplastic synthetic resin moldings, especially...
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5262444 |
Porous plastic film product, useful as a breathable wall covering or filters
The invention relates to a breathable, plastic film, useful as a wall covering material. A low boiling additive, such as water, is added to a plastisol before extrusion. During extrusion and curing...
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5252623 |
Expandable vinyl chloride resin composition
An expandable vinyl chloride resin composition comprising, as main components, a vinyl chloride polymer composed mainly of vinyl chloride obtained by emulsion polymerization or fine suspension...
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5232955 |
Process for producing a high strength artificial (cast) stone with high permeability and filter effect
The invention relates to a process for producing a highstrength a furan stone with high permeability and filtering effect mainly for protecting deep-drilled wells yielding mineral oil, natural gas...
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5162380 |
Method of preparation of foamed articles of polyvinyl chloride resins
Foamed articles of polyvinyl chloride resins are prepared by mixing an organic foaming agent having a temperature of foaming by decomposition of 100° C. or above and a plasticizer with a polyvinyl...
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5077319 |
Cyanate resin-based foams
Foamable resin compositions of cyanate esters and thermoplastic resins are disclosed.
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4994499 |
Method of adding flame retardant to vinyl aromatic polymers made in a one-step process
A method of introducing flame retardants into expandable vinyl aromatic polymer beads made in a one-step process is disclosed. Flame retardants with good solubility in blowing agents are introduced...
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4992482 |
Polyphenylene ether - alkenyl aromatic polymer blends having organobromine additives
Certain organobromines are added to blends of polyphenylene ether and alkenyl aromatic polymer to reduce mold cool time of the composition. These organobromines also reduce residual blowing agent...
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4975469 |
Oriented porous polypropylene films
This invention relates to oriented porous films having cells with polygonal cross sections and average pore diameters of about 5 to about 30 microns and interconnecting pores between the cells...
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4968733 |
Process for producing microporous powders and membranes
A process produces microporous powders or shaped articles, in particular membranes in the form of flat films, tubular films or hollow fibers, which may be used for controlled release of an active...
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4962131 |
Composition useful in process for preparing powadir membranes from tetrahalobisphenol a polycarbonates
The invention is a composition useful for the preparation of POWADIR membranes of a bisphenol-based polycarbonate wherein at least 25 percent by weight of the bisphenol moieties are...
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4921965 |
Method of producing alkyl substituted 5-amidotetrazoles
In a process for the production of Alkyl substituted 5-amidotetrazole compounds represented by the formula: ##STR1## wherein A represents NHX or NRR' X represents a lower alkyl group R...
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4885316 |
Substituted 5-amidotetrazoles as blowing agents in the production of cellular thermoplastic or rubber materials
In a process for the production of cellular products comprising thermoplastic or rubber materials the blowing agents employed have the formula: ##STR1## wherein A represents NHX, NRR' or OR X...
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4871861 |
Substituted 5-amidotetrazoles
In a process for the production of cellular products comprising thermoplastic or rubber materials the blowing agents employed have the formula: ##STR1## wherein A represents NHX, NRR' or OR X...
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4818254 |
Semi-permeable membranes consisting predominantly of polycarbonates derived from tetrahalobisphenols
The invention is an improved gas separation membrane comprising a thin, discriminating layer consisting predominantly of a carbonate polymer derived from a bisphenol corresponding to Formula I...
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4812485 |
Ultraviolet-resistant noise-reducing member and method of making same
A noise-reducing foam member for prolonged exposure to ultraviolet radiation without degradation consists essentially of a major proportion of a room-temperature silicone rubber foaming material...
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4791144 |
Microporous film and process for production thereof
Disclosed is a microporous polyproplene film comprising a propylene homopolymer, a copolymer of propylene with other copolymerizable monomer or a blend thereof, which has an intrinsic viscosity...
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4774266 |
N-substituted 5-phenyltetrazoles as high temperature blowing agents
A process for the production of cellular products which comprises incorporating a blowing agent into rubber or a thermoplastic material uses as the blowing agent a tetrazole compound represented by...
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4772638 |
Compositions having reduced smoke emission
A smoke suppressant for reducing smoke emission when a flammable organic material is heated above its decomposition temperature or ignited comprises a liquid heterocyclic polysulphide compound...
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4772640 |
Process for foaming polymeric compositions with organic azo compounds and compositions associated therewith
Azo compounds such as 2-ethyl-6-methyl-phenylazo-t-butane which contain an aromatic moiety bridged to one or more alkyl moieties by azo groups are useful blowing agents in a novel process for...
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4761432 |
Coating of flame retardants onto a seed bead
Various flame retardant agents have been added as a coating to seed beads of vinyl aromatic polymers. The resulting products have high resistance to burning and permit the use of lower...
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4728674 |
Modified polyphenylene ether resins having improved foamability and methods of making the same
The production of foamed articles of polyphenylene ether resins is improved by including a modifier comprising an alpha, beta-unsaturated carboxylic acid or derivative. The resulting products are...
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4728673 |
Process for the foaming of thermoplastics containing ester and/or carbonate groups
The present invention relates to the use of combinations of specific compounds as blowing agent combinations for thermoplastics containing ester and/or carbonate groups, a process for the foaming...
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