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7622545 |
Polyester resins with a special co-catalyst for high melt poly and SSP reactivity with enhanced color values
The present invention relates to a PET resin and a process for producing polyethylene terephthalate (PET) resin having conventional catalysts such as antimony, titanium, tin or germanium compounds...
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7618903 |
Soft mold, method of manufacturing the same, and patterning method using the same
The patterning method includes forming a synthetic resin layer on a substrate, providing a mold in which a predetermined pattern is formed and metal particles are distributed on the surface of the...
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7612161 |
Method for treating extremely small particles of plastic
A method for treating extremely small particles of plastic comprises providing a quantity of plastic particles having an average mean particle size ranging from about 0.0005 inch to about 0.05 inch...
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7589165 |
Polycarbonates having a good wettability
Polycarbonate resin containing small amounts of carbamate compounds is disclosed. The resin that contains at least one of compounds conforming to
wherein
R 1 and R 2 independently of one...
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7587805 |
Reconfigurable fixture device and methods of use
A fixture device generally includes a base member, a reconfigurable pad disposed on the base member, wherein the reconfigurable pad comprises a shape memory material configured to selectively...
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7585935 |
Purified polymeric materials and methods of purifying polymeric materials
A method is disclosed to purify a polymeric material by filtering a melt comprising poly(arylene ether) and poly(alkenyl aromatic) through a melt filtration system. The method provides a filtered...
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7585565 |
Multilayered film made of (meth)acrylate copolymer and polycarbonate
The invention relates to a multilayered film comprising at least one upper layer a), a middle layer b) made of (meth)acrylate copolymer, and a supporting layer c) made of polycarbonate. Upper layer...
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7579431 |
Method for treating extremely small particles of polyethylene terephthalate
A method for treating extremely small particles of recycled polyethylene terephthalate comprises providing a quantity of RPET particles having an average mean particle size ranging from about...
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7576172 |
Method of preparing aliphatic polymer having ketone group in main chain thereof and method of preparing composition containing the same
Described are pacifiers comprising polyester compositions comprising polyesters which comprise (a) a dicarboxylic acid component having terephthalic acid residues; optionally, aromatic dicarboxylic...
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7569080 |
Powder compaction pressing process for capacitor anodes
A powder compaction process using opposed rib and channel punches which are interleaved and a production method are used to produce capacitor elements having a uniform compaction density and which...
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7557175 |
Poly(carbonate-co-urea) copolymers and melt transesterification method of preparing these copolymers
Disclosed herein is a poly(carbonate-co-urea-co-ester) copolymer comprising incorporated urea compound, dihydroxy compound and diacid compound residues. Also disclosed herein is a...
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7550551 |
Brominated flame retardant
A process for preparing a polybromoaryl ether comprising adding to a solvent for the polybromoaryl ether a mixture of (1) at least one compound of the structure HO—Ar—X 1 , X 2 , X 3 , X 4 , X...
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7541418 |
Transparent thermoplastic antimicrobial molding composition
A transparent antimicrobial thermoplastic molding composition is disclosed. The composition contains aromatic polycarbonate resin and 0.01 to 3.8 of an antimicrobial compound conforming to formula...
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7534854 |
Apparatus and method for oxidation and stabilization of polymeric materials
An apparatus for treating polymeric materials comprises a treatment chamber adapted to maintain a selected atmosphere; a means for supporting the polymeric material within the chamber; and, a...
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7528214 |
Methods for preparing transparent articles from hydroquinone polycarbonate copolymers
A method for producing a transparent article comprises the steps of melt transesterifying a monomer mixture in the presence of a transesterification catalyst to produce a hydroquinone polycarbonate...
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7528212 |
Ionizing radiation stable thermoplastic composition, method of making, and articles formed therefrom
A thermoplastic composition comprises a polycarbonate that is not aryl carboxylate end-capped, and an aryl carboxylate end-capped polycarbonate of formula:
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7527760 |
Resin mold and method for manufacturing the same
A method for manufacturing a resin mold includes the steps of: attaching a transmitting resin member capable of transmitting a laser beam and an absorbing resin member capable of absorbing the...
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7524919 |
Polycarbonate-polysiloxane copolymers, method of making, and articles formed therefrom
A polycarbonate copolymer comprising 90 to 100 mol % of units derived from a cyclohexylidene bisphenol of the formula
wherein R a′ and R b′ are each independently C 1-12 alkyl, T is a C...
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7520972 |
Process for making a mold piece having a main curved surface bearing a utilitary microstructure
A process for making a mould piece having a main curved surface bearing an utilitary microstructure which comprises transferring a utilitary microstructure from a master piece main surface to a...
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RE40697 |
Method for making an aromatic polycarbonate
This invention relates to an extrusion method preparing polycarbonates from a solution of an oligomeric polycarbonate. A mixture of bis(methyl salicyl)carbonate (BMSC), BPA and a...
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7507054 |
Pre-sloped trench drain system
A below grade trench drain system and a method for making the trench drain system is disclosed which does not rely on the contractor's prowess to dig a trench with a proper slope. The trench drain...
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7502023 |
High-resolution rapid manufacturing
The present invention is a method for forming an object, the method comprising jetting a first material to form a plurality of layers that define a support structure increment, and extruding a...
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7501482 |
Crystallizer temperature control via solid additive control
A method of crystallizing polymeric pellets includes a step in which a plurality of polymeric pellets are introduced into a crystallizer. While within the crystallizer, the plurality of pellets is...
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7498400 |
Method of preparing polycarbonate
Polycarbonates incorporating terminal carbonate groups derived from ester-substituted activated carbonates in a transesterification process have unfavorable properties with respect to color,...
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7498399 |
Method of preparing ester-substituted diaryl carbonates
An improved method for the preparation of ester-substituted diaryl carbonates prepared by reacting phosgene with recycle streams of ester-substituted phenols from reaction processes using a...
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7498398 |
Thermoplastic composition, method of making, and articles formed therefrom
A polyacrylate-polycarbonate copolymer comprises a polycarbonate block comprising aromatic carbonate units, and a polyacrylate block derived from a difunctional polyacrylate polymer having the...
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7497980 |
Microneedles and microneedle fabrication
A master mould is made by wire cutting a plate in two or more directions to provide a base with an array of master mould needles protruding therefrom. The size and shape of the master mould needles...
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7497916 |
Method of manufacturing multilayer optical information recording medium
When a separation layer is formed using a stamper between a substrate and the stamper on a thick substrate, on the surface of which a rewritable recording multilayer film provided with signal guide...
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7495064 |
Manufacture of polycarbonates
A method of producing a polycarbonate is provided. In an embodiment of the present invention the method includes the steps of: (i) introducing to a melt polymerization reactor system a reaction...
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7491792 |
Polymer powder with block polyetheramide, use in a shaping process, and moldings produced from this polymer powder
Moldings can be produced from a polymer powder containing at least one block polyetheramide containing an oligoamide dicarboxylic acid and a polyetheramine; wherein the powder is suitable for use...
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7491751 |
Method for processing polyester wastes
A method for processing polyester wastes, especially used polyester bottles, which comprises shredding, washing, drying and melting the waste mixture to obtain a starting raw material wherein a...
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7485695 |
Polycarbonates containing low levels of methyl salicylate prepared by a melt polymerization in a reactive extruder
Polycarbonate is prepared by reactive extrusion on a reactive extruder. A method incorporates the steps of introducing a polycarbonate oligomer, an activated carbonate, and a transesterification...
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7482423 |
Polycarbonates and method of preparing same
Polycarbonates incorporating terminal carbonate groups derived from ester-substituted activated carbonates, for example terminal methyl salicyl carbonate (TMSC) derived from the use of BMSC as the...
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7478780 |
Methods for manufacturing composite aircraft, parts and a family of composite aircraft
The invention relates to systems and methods for manufacturing composite parts for aircraft. In one innovative aspect, a system and method for adjusting a location of a center of gravity of an...
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7473755 |
Aromatic polyester composition for making stretch blow molded containers
The present invention relates to an aromatic polyester composition for making stretch blow molded containers with improved strain hardening. The polyester composition according to the invention...
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7470767 |
Preparation of ultrapure polymeric articles
Ultrapure olefinic polymeric articles of manufacture can be prepared by a process comprising: providing olefinic polymeric material containing impurities, subjecting the olefinic polymeric material...
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7465419 |
Method for providing a compliant cantilevered micromold
A compliant cantilevered three-dimensional micromold is provided. The compliant cantilevered micromold is suitable for use in the replication of cantilevered microparts and greatly simplifies the...
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7465416 |
Method for designing a mold, method for producing an injection molding, program and injection molding device
An object of the present invention is to provide a method for designing a mold and a method for producing an injection molding in which a mold clamping force or weld line occurrence can be more...
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7462684 |
Preparation of transparent, multilayered articles containing polyesters comprising a cyclobutanediol and homogeneous polyamide blends
Disclosed is a process for the preparation of multilayered, shaped articles having high transparency and low haze and in which at least one layer contains at least one polyester comprising...
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7459211 |
Anti-ultraviolet reflector
Disclosed is an anti-UV reflector for distributing a light from a point light source or a linear light uniformly over a target. The anti-UV reflector mainly includes a light reflecting polymeric...
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7452493 |
Protective cover and tool splash for vehicle components
A method of manufacturing a protective cover ( 24 ) for a component of a vehicle includes assembling multiple layers to form a charge ( 22 ). The charge ( 22 ) is formed within a mold ( 50 ) of the...
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7452490 |
Method and apparatus for fabricating a light management substrates
A method of machining a surface of a workpiece is accomplished by bringing a cutting tool into contact with the surface of the workpiece and for at least one cutting pass, i, causing relative...
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7449123 |
Nanoimprint lithograph for fabricating nanoadhesive
A nanoimprint lithography method of fabricating a nanoadhesive includes steps of (a) preparing a substrate and a transfer stamp, said transfer stamp having a transfer face and nanometer-scale...
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7442303 |
Microporous filter membrane, method of making microporous filter membrane and separator employing microporous filter membranes
A filter membrane, methods of making such filter membrane and apparatus employing such filter membrane are disclosed, in which the filter membrane is a monolithic polymeric membrane that includes a...
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7431858 |
Nanoimprint resist
The invention relates to a method for microstructuring electronic components, which yields high resolutions (≦200 nm) at a good aspect ratio while being significantly less expensive than...
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7422714 |
Method of using a shape memory material as a mandrel for composite part manufacturing
A method of fabricating and using a removable, inflatable mandrel of shape memory polymer for use in manufacturing composite parts including the steps of providing a processed pre-form of shape...
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7410700 |
Weatherable 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...
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7410606 |
Methods for manufacturing three-dimensional devices and devices created thereby
A process of making a casting includes the steps of designing a mold ( 1010 ), fabricating the layers (or laminations) of the mold ( 1020 ), stacking and assembling the laminations into a mold (...
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7403830 |
Method, computer, computer program and computer-readable medium relating to the examination of data records for dental prosthesis parts
The invention refers to a method, a computer, a computer program and a computer-readable medium, which refer to the examination of data records that are used for manufacturing dental prosthesis...
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7399820 |
Cyclic 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...
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