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Class 264/176.1 - Shaping by extrusion


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes wherein an article is shaped or formed by extruding
No. of patents: 1172
Last issue date: 04/10/2012


1                      
NumberTitleIssue Date
8153043HDPE resins for use in pressure pipe and related applications
The present invention provides bimodal polyethylene resins in which the high molecular weight ethylene copolymer component typically has a relatively narrow molecular weight distribution, with short chain branching content being substantially constant across its mol...
04/10/2012
8075823Process for preparing antimicrobial plastic bodies having improved long-time performance
The present invention relates to processes for preparing an antimicrobial plastic body, said processes comprising molding a precursor and being characterized in that prior to molding at least one component of the precursor is treated with a metal colloid. ...
12/13/2011
8062567Process for manufacturing organic fibers containing inorganic component and nonwoven fabric containing the same
A process for manufacturing organic fibers containing an inorganic component comprising the steps of: (1) preparing an inorganic spinnable sol solution; (2) mixing the inorganic spinnable sol solution, a solvent capable of dissolving the inorganic spinnable sol solu...
11/22/2011
8052906Polyamide yarn process
A process for making a synthetic melt spun polyamide filament in a solid phase polycondensation apparatus is disclosed. The flow rate of the purge (make-up) gas to the apparatus is increased, and the overall pressure in the apparatus is decreased, as compared to sol...
11/08/2011
8025826Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same
De-airing of PVB/glass laminates can be improved, while haze in the pre-press is minimized and sleep time reduced as a result using a PVB sheet having a roughened surface with directionality. A roughened surface with a washboard pattern that is useful in this regard...
09/27/2011
7993560Process for introducing an additive into a polymer melt
A process includes introducing a base polymer into an extruder, heating to a temperature sufficient to form a polymer melt, introducing a liquid such as water including an additive with mixing and subsequent vaporization and venting of the liquid to produce an extru...
08/09/2011
7988895Production method of microporous polyethylene membrane and battery separator
A microporous polyethylene membrane having well-balanced permeability, mechanical properties, heat shrinkage resistance, compression resistance, electrolytic solution absorbability, shutdown properties and meltdown properties, with an average pore diameter changing ...
08/02/2011
7931842System and method for making sheets, films, and objects directly from polymerization processes
A system for making sheets, films, and objects including a reactor-dryer for reacting at least one monomer to produce a polymer melt; a flash melter in communication with the reactor-dryer for heating the polymer melt received from the reactor-dryer; a flash tank in...
04/26/2011
7927532Biodegradable nano-polymer compositions and biodegradable articles made thereof
The invention relates to biodegradable nano-polymer compositions, or nanocomposites, comprising poly(lactic acid) and co-polyester polymer with adipic acid compounded with nanoparticles of a mineral material having a degree of purity of at least 99.9%, preferably 99...
04/19/2011
7927531Method and extrusion head for extruding a polymeric material
An extrusion method and head for depositing by extrusion a polymeric material intended, in particular, for the production of cables includes a core and a coating layer arranged at a radially outer position with respect of the core. The method includes the steps of f...
04/19/2011
7879270Process for producing a hyper-elastic, high strength dilatation balloon made from multi-block copolymers
A process for producing a dilatation balloon by extruding a multiblock copolymer composition to form an extrudate comprising phase-separated glassy, rubber, and semicrystalline microdomains that are macroscopically ordered in a perpendicular alignment. The balloon f...
02/01/2011
7862755Constant shear rate extrusion die
An extrusion die for extruding thermoplastic materials to produce a sheet of substantially uniform thickness, the extrusion die having a manifold width that increases from the centerline toward the die exit or lip. The increasing width manifold arms, with the prelan...
01/04/2011
7833448Flameproofed impact-strength-modified poly(ester)carbonate compositions
A process for producing a three-dimensional article comprising a poly(ester)carbonate compositions characterized by its flame resistance and high impact strength is disclosed. The composition that contains branched aromatic poly(es...
11/16/2010
7771635Melt cooler and valving system for an underwater pelletizing process
A melt cooler and valving system for an underwater pelletizer has a diverter valve that facilitates multiple modes of melt processing. The cooler has a cooler inlet line that conveys the melt to the cooler, and a cooler outlet line that conveys the cooled melt from ...
08/10/2010
7754124Method and apparatus for multi-stream metered extrusion
An extrusion apparatus for extruding multiple streams of extrusion material as extruded end-products and in the coating of substrates. A flow joiner in an extrusion head combines multiple metered streams such as from a gear pump, into a uniform extrusion flow. ...
07/13/2010
7691304Thermoplastic composition, method of manufacture thereof, and articles derived therefrom
Disclosed herein is a thermoplastic composition comprising a combination of 10 to 80 wt. % of a polyester, more than 0 to 50 wt. % of a polycarbonate, and 10 to 90 wt. % of at least one polyester-polycarbonate copolymer comprising, based on the total weight of the c...
04/06/2010
7686998Thermoplastic composition, method of manufacture thereof, and articles derived therefrom
Disclosed herein is a thermoplastic composition comprising a combination of 10 to 80 wt. % of a polyester and 10 to 90 wt. % of at least one two polyester-polycarbonate copolymers comprising, based on the total weight of the copolymer, 10 to 95 wt. % of arylate este...
03/30/2010
7686997Thermoplastic composition, method of manufacture thereof, and articles derived therefrom
Disclosed herein is a thermoplastic composition comprising a combination of 10 to 80 weight percent of a polyester, 5 to 50 weight percent of a polycarbonate, and 10 to 90 weight percent of a polyester-polycarbonate copolymer comprising, based on the total weight of...
03/30/2010
7662324Polymer processing aid and method for processing polymers
In an exemplary embodiment, the present method includes the stops of providing a polymer resin to be processed: blending particulate boron nitride (BN) and a fluorine-containing polymer with said polymer resin to provide a resin blend: heating said resin blend to ob...
02/16/2010
7642337Method and device for crystallising plastic granules with a tendency to conglutinate, particularly PET and PU granules
In a method for crystallising plastic granules with a tendency to conglutinate, in particular PET and PU granules, the granules are subjected to vibratory excitation in a vibrating trough (1) transversely to the direction of longitudinal extension of the vibr...
01/05/2010
7615174Masterbatch containing adhesive PMMA and its use for the production of polyolefin films
The present invention relates to a masterbatch composition which contains a polyolefin base resin, polymethylmethacrylate (PMMA) pearls and a further polymeric compound obtained at least from olefinic monomers, olefinic monomers containing an ester functionality and...
11/10/2009
7459113Process of making a container from polyester polymer particles having a small surface to center intrinsic-viscosity gradient
There is now provided a polyester polymer particle having an It.V., a surface, and a center, wherein the It.V. at the surface of the particle is less than 0.25 dL/g higher than the It.V. at the center of the particle. The polyester polymer particle is desirably crys...
12/02/2008
7413701Clutch linings comprising fiber-reinforced ceramic materials
Clutch linings comprising fiber-reinforced ceramic materials which contain short carbon fibers and whose matrix has a mass fraction of at least 40% of silicon carbide, process for producing them and their use in clutch systems, in particular for motor vehicles. ...
08/19/2008
7410700Weatherable multilayer articles and method for their preparation
Disclosed are weatherable multilayer articles comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one aromatic dicarboxylic acid, (ii) a second layer comprisin...
08/12/2008
7399820Cyclic oligoformals in polycarbonate
A thermoplastic molding composition comprising (co)poly(ester)carbonate, and a cyclic oligoformal is disclosed. The composition that is characterized in its lowered water absorption and improved flowability is suitable for a variety of application including in parti...
07/15/2008
7396896Poly(trimethylene terephthalate) composition and shaped articles prepared therefrom
Poly(trimethylene dicarboxylate) prepared by polycondensation of: (a) 1,3-propanediol; (b) aliphatic or aromatic diacid or diester; and (c) from about 0.01 to about 0.2 mole %, based on the total number of moles of 1,3-propanediol and diacid or ester, of polyfunctio...
07/08/2008
7388067Polyester composition comprising polybutylene terephthalate resin
Polyester compositions and methods to prepare and use such compositions are provided. The polyester compositions include a polybutylene terephthalate resin (PBT) and at least one additive, and have a cyclic dimer content of less than 0.35 wt. % relative to the weigh...
06/17/2008
7375166Polymeric blends for optical devices and method of manufacture thereof
A method for manufacturing a film or sheet comprises deforming a polymeric alloy at a temperature effective to impart to the deformed alloy a birefringence retardation of greater than or equal to about 750 nanometers. A method eliminating comets and veins in an opti...
05/20/2008
7375177Polymers, polymer compositions and method of preparation
A polymer comprising at least one structural unit derived from a dihydroxy compound of Formula (I) wherein R1 is an aromatic divalent functionality having 6 to 60 carbons, R2 can be the same or differe...
05/20/2008
7371808Polymer treating method and apparatus
A polymer treating method has the steps of: reacting a polymer compound with a reaction agent in a reaction vessel to generate a polymer treatment product; discharging the polymer treatment product containing the reaction agent from the reaction vessel; depressurizi...
05/13/2008
RE40274Heat shrinkable polyester film
The present invention provides a heat shrinkable polyester film whose hot water shrinkage along its main shrinkage direction is equal to or greater than 20% when the film is put in hot water of 70° C. for 5 sec; 35% to 55% when put in hot water of 75° C. for 5 sec...
04/29/2008
7357733Golf ball with vapor barrier layer and method of making same
A golf ball with at least one moisture vapor barrier layer is disclosed. The moisture vapor barrier layer is formed from a composition comprising a filler dispersed in a liquid or solven-born polymer of multi-olefin, iso-olefin, or a combination thereof. ...
04/15/2008
7354877Carbon nanotube fabrics
The present invention provides fabrics that have unique chemical, electrical, and thermal properties. The fabrics comprise layers of yarns woven together wherein the yarns further comprise carbon nanotube fibers. These carbon nanotube fibers may be either single-wal...
04/08/2008
7348398Method for separating transition metals from polymers
The invention relates to a method for separating transition metals from polymers. According to the invention, a solid polymer containing transition metals is treated with an extracting agent, the duration of the treatment and the extraction temperature being selecte...
03/25/2008
7348394Methods for preparing transparent articles from biphenol polycarbonate copolymers
A method for producing a transparent article is provided. The method comprises melt transesterifying in the presence of a transesterification catalyst and a monomer mixture to produce a biphenol polycarbonate copolymer product comprising greater than 45 mole percent...
03/25/2008
7345133Branched polycarbonates
A branched polycarbonate and processes for its preparation are disclosed. The polycarbonate contains structural units conforming to in which R1, R2, R3 and R4 mutually independent...
03/18/2008
7332560Thermoplastic molding compositions having reduced water absorption
A thermoplastic molding composition comprising polycarbonate and at least one (co)polyformal is disclosed. Characterized by its low water absorption the composition is particularly suitable for producing molded articles, especially optical data carriers, such as com...
02/19/2008
7329718Aromatic polycarbonate resin, process for producing the same, optical-part molding material, and optical part
The present invention relates to an aromatic polycarbonate resin which comprises repetitive units originating in residual groups of a 2,2-bis(4-hydroxyphenyl)adamantane compound and a 1,3-bis(4-hydroxyphenyl)adamantane compound having a substituent on an aromatic ri...
02/12/2008
7326764Transparent compositions, methods for the preparation thereof, and articles derived therefrom
A reaction product comprises a first polyester-polycarbonate comprising a polyester unit and a polycarbonate unit, a second polyester-polycarbonate comprising a polyester unit and a polycarbonate unit, and a transesterification catalyst. The reaction product has a h...
02/05/2008
7326467Polycarbonate-based resin composition for extrusion molding using sizing die and molded product
A polycarbonate-based resin composition for extrusion molding using a siring die, and a molded product produced by extrusion-molding the resin composition using a sizing die, The polycarbonate-based resin composition comprises, as a main component, a polycarbonate h...
02/05/2008
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