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7582703 |
Cross-linkable compounds comprising a perfluoropolyether moiety
The invention pertains to a cross-linkable compound comprising a perfluoropolyether (PFPE) moiety derived from an hydroxy-terminated PFPE-oil, which is bonded through a spacer with an ethylenically...
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7439297 |
Foamable fluoropolymers compositions without using foaming agents
A composition comprising:
A) 50-99.9% by weight of at least a copolymer (1) of ethylene (E) with chlorotrifluoroethylene (CTFE) wherein CTFE is comprised between 53 and 70% by moles, having a...
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7060736 |
Blowing agent solubility in polymers
The selection of additives to improve the solubility of blowing agents may be facilitated by using a method that involves determining and comparing the activity coefficients of prospective...
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7026366 |
Thermoplastic elastomers having enhanced foaming an physical properties
An olefinic thermoplastic elastomer composition which includes an acrylic-modified polytetrafluoroethylene. When foamed, such compositions produce a very soft foam with improved processing...
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6971211 |
Cellulosic/polymer composite material
The present invention is a component such as a siding panel that may be comprised of various formulations of cellulosic/polymer composite materials. One embodiment of the present invention is a...
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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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6765033 |
Expandable vinyl chloride resin composition
An expandable vinyl chloride resin composition that the expansion ratio of a vinyl chloride resin can be greatly increased by the use of thermally decomposable inorganic blowing agents without the...
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6746608 |
Use of adsorbent polymer particles in DNA separation
The invention is directed to fluorinated particles having adsorbent properties for superior performance as the stationary phase for use in chromatographic separations. In particular, the...
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6723762 |
Foamable vinyl chloride-base resin compositions
There is provided a foamable poly(vinyl chloride) resin composition which can remarkably improve an expansion ratio. There is used a foamable poly(vinyl chloride) resin composition comprising 100...
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6627277 |
Polytetrafluoroethylene tubing and extruder for the production thereof
In an extruder for producing a polytetrafluoroethylene tube having a minimum thickness deviation by extruding a polytetrafluoroethylene paste through an annular portion formed by a core pin ( 30 )...
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6610757 |
Foamable vinyl chloride resin composition
An expandable vinyl chloride resin composition that the expansion ratio of a vinyl chloride resin can be greatly increased by the use of thermally decomposable inorganic blowing agents without the...
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6608115 |
Polyvinyl chloride resins and method of preparation and use in the production of whitened polyvinyl chloride foam
Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur...
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6605649 |
Method of production of whitened polyvinyl chloride foam
Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur...
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6538050 |
Method of foaming a polymer composition using zeolite and foamed articles so made
The present invention relates to a method of foaming a polymer comprising the steps of providing a composition comprising said polymer and a zeolite in an amount of 0.3% or more based on the weight...
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6512013 |
Titanium dioxide nucleating agent systems for foamable polymer compositions
The invention concerns nucleating agent systems for foamable polymer compositions, preferably fluoropolymer resins, having foam cell nucleation sites using titanium dioxide based nucleating agents,...
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6503958 |
Biomaterials
The present invention relates to porous polymers incorporating dihydroperfluoroalkyl acrylates and methacrylates and the like and their production. The invention also relates to the use of polymers...
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6479559 |
Chlorinated vinyl chloride resin composition for siding extrusion molding and siding molded article using the same
There is obtained a chlorinated vinyl chloride resin composition from which a siding molded article having good appearance and excellent heat resistance, impact resistance and weatherability is...
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6465535 |
Grip material
The present invention provides a vibration reducing grip material that includes a closed-cell poly(vinyl chloride) foam material having a Shore durometer of about 50 to about 70. According to one...
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6380272 |
Manufacturing method for structural members from foamed plastic composites containing wood flour
Structural members for doors and the like can be manufactured from plastic foamed composites containing wood flour by the steps of (1) dry mixing a blend of powders including PVC powder, wood...
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6348512 |
Medium density chlorinated polyvinyl chloride foam and process for preparing
The present invention relates to a medium density chlorinated polyvinyl chloride foam and the method of preparing such a foam. The foam having a specific gravity in the range of about 0.3 to about...
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6344268 |
Foamed polymer-fiber composite
Foamed polymer-fiber composites, building materials and methods of making such building materials are provided by this invention. The composites include about 35-75 wt. % of a polymeric resin,...
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6339108 |
Oxygenator membrane
The invention relates to an oxygenator membrane based on organically modified silicic-acid polycondensates into a process for preparation thereof. The oxygenator membrane is obtainable by...
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6310112 |
Hydrogenated vinyl aromatic polymer foams
This invention provides a thermoplastic polymer foam having a density of up to 800 kg/m 3 . The foam is made from a hydrogenated vinyl aromatic polymer that contains pendant cycloaliphatic groups....
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6277464 |
Polymeric integral net
The present invention provides an integral net having a lattice of polymeric material defined by holes traversing the integral net from one surface to the other. The present invention also provides...
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6255360 |
Process for the manufacture of moldings
The present invention relates to a process for the manufacture of porous polymers, wherein a polymerizable component comprising at least one free radically polymerizable unsaturated monomer of...
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6248799 |
Material containing expandable microspheres and process for the production thereof
A material for the production by extrusion or molding or calendering of light articles has a chemical formulation comprising at least a thermoplastic polymer. A predetermined amount of polymeric...
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6232357 |
Compositions based on elastomeric polymers of vinylidene fluoride, hexafluoropropene and optionally tetrafluoroethylene, suitable for providing microcellular foamed articles
The present invention relates to compositions based on elastomeric polymers of vinylidene fluoride, hexafluoropropene and optionally tetrafluoroethylene suitable for providing microcellular foamed...
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6225365 |
PVC foam
PVC foam blown with a physical blowing agent comprising a gaseous HFC is provided.
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6194478 |
Document feeding component and method of manufacture thereof
A document feed component is presented comprising a foamed epichlorohydrin elastomer, a curing agent, and a blowing agent, wherein the document feed component has a dynamic coefficient of friction...
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6160030 |
High water content porous polymer
The present invention relates to porous polymers comprising a perfluoropolyether unit, to a process for producing such porous polymers, in particular to a process for polymerising or copolymerising...
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6121335 |
Nucleator for foaming, foamable composition, foam and production method of foam
A nucleator for foaming comprising a fluororesin powder comprising particles having a particle size of 0.1-0.5 μm in a proportion of at least 50% by number and containing particles having a...
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6066680 |
Extrudable composite of polymer and wood flour
An extrusion profile is formed of foamed plastic, which includes a filler of wood flour or wood fiber. The foamed plastic may include polyvinyl chloride, chlorinated polyvinyl chloride or...
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6046246 |
Process for making fluorinated polymer adsorbent particles
Chemically resistant, strong fluorinated copolymer adsorbent particles for use in carrying out chromatographic separations are prepared by high shear, anaerobic reaction of a di-unsaturated...
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6043293 |
Foamable polyvinyl halogenated resin mass, use of polymerizates thereof as processing aids and objects formed therefrom
There are provided foamable, foamable polyvinyl halide resin masses containing: A) 1 to 25 parts relative to 100 parts of polyvinyl halide, of a polymerizate obtainable through the emulsion...
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6025441 |
Polytetrafluoroethylene-containing powder mixture, thermoplastic resin compositions including same and molded articles made therefrom
A polytetrafluoroethylene-containing powder mixture comprising polytetrafluoroethylene particles (A) with a particle size 10 μm or smaller and organic polymer particles (B), thermoplastic resin...
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6019920 |
Granular-type modified polytetrafluoroethylene dispersions and fused articles prepared therefrom
An aqueous dispersion of modified granular PTFE particles is sprayed or cast to form a sheet. The sheet is then dried and the modified granular particles fused together to form an open network of...
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5981614 |
Hydrophobic-oleophobic fluoropolymer compositions
The present invention provides a composition comprising a hydrophobic, fluoroplastic polymer and an oleophobic fluoropolymer, wherein said composition is both hydrophobic and oleophobic, and...
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5955511 |
Manufacturing ultramicrocellular polymer foams at low pressure
The invention disclosed provides a method for producing ultramicrocellular polymer foams at low pressures. A polymer is saturated with a blowing agent at low temperatures and pressures within a...
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5951927 |
Method of making a polymer and wood flour composite extrusion
An extrusion profile is formed of foamed plastic, which includes a filler of wood flour or wood fiber. The foamed plastic may include polyvinyl chloride, chlorinated polyvinyl chloride or...
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5939198 |
Porous polytetrafluoro-ethylene and preparation
This invention relates to porous polyfluoroethylene (PTFE), shaped articles prepared therefrom, and to methods of preparing said articles.
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5928459 |
Process for the production of polymethacrylimide foam materials
Polymethacrylimide foams are prepared by a method, comprising: preparing a mixture consisting of (a) a monomer mixture of 40-60 wt. % methacrylonitrile, 60-40 wt. % methacrylic acid, and,...
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5912278 |
Foamed fluoropolymer
Fabricated articles of fluoropolymer are foamed by heating the articles to a deformable state, pressurizing the heated article with supercritical CO 2 , depressurizing the pressurized heated...
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5866625 |
PVC foam compositions
The density of rigid foamed articles made by the thermal decomposition of a blowing agent in a vinyl chloride polymer is reduced by the use of an organotin halide in combination with a...
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5847016 |
Polymer and wood flour composite extrusion
An extrusion profile is formed of foamed plastic, which includes a filler of wood flour or wood fiber. The foamed plastic may include polyvinyl chloride, chlorinated polyvinyl chloride or...
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5840775 |
Porous polytetraflouroethylene and preparation
This invention relates to porous polyfluoroethylene (PTFE), shaped articles prepared therefrom, and to methods of preparing said articles.
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5840774 |
Low density microporous polymers and process
The disclosed invention is a crystalline microporous polymer and process for preparing a low density microporous polymer comprising, providing a mixture of a polymer and a polymer solvent, the...
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5834528 |
Polytetrafluoroethylene porous composite film
An object is to provide a polytetrafluoroethylene (PTFE) porous composite film which has substantially no defect portion. There is provided the PTFE porous composite film by stretching a composite...
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5821274 |
Stabilizer and blowing agent useful for rigid foamed PVC
Improved activation of the blowing agent used to form blown PVC products, as well as thermal stabilization, are provided by a combination of an ester of the formula (R 1 ) 1 -2 Sn(--S--R a ...
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5821273 |
Extrusion foaming of fluoropolymers
Fluoropolymer resin is extrusion foamed at low temperature using carbon dioxide as the foaming agent.
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5789453 |
Medium density chlorinated polyvinyl chloride foam and process for preparing
The present invention relates to a medium density chlorinated polyvinyl chloride foam and the method of preparing such a foam using a blend of chemical blowing agents. The foam having a specific...
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