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7604754 |
Resistor compositions for electronic circuitry applications
Resistor compositions are disclosed, made from polymer thick film resistor formulations comprising a polyimide component, a sterically hindered hydrophobic epoxy component and a solvent component...
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7524891 |
Biodegradable polymer systems
The rate of degradation of polymers and polymer blends containing (poly) lactic acid can be increased and controlled by the inclusion of up to 10% (typically less than 1%) by weight of specific...
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7476339 |
Highly filled thermoplastic composites
A composite material including a thermoplastic polymer matrix and a non-carbonaceous resistivity modifier dispersed in the thermoplastic polymer matrix. The composite material has a surface...
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7442727 |
Pyrogenically prepared, surface modified aluminum oxide
Pyrogenically prepared, surface modified aluminum oxide, having the following physical chemical properties:
Surface area [m 2 /g] 50 to 150 Tamped density [g/L] 25 to 130 Drying loss [%]...
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7345105 |
Conductive adhesive composition
A conductive adhesive composition is obtained by mixing a binder resin with 30-98 wt % based on the adhesive composition of a silver powder as a conductive agent. The silver powder contains a...
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7285585 |
Coagulation of particles from emulsions by the insitu formation of a coagulating agent
This invention provides processes for isolating particles from an emulsion including the steps of: (a) forming an emulsion having a solid component having a population of particles, a liquid...
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7265197 |
Polymeric dispersant
A polymeric dispersant of the structure:
wherein R 1 is selected from the group consisting of H, CH 3 , and a combination thereof, and n is an integer from 4 to 200, for use in printing inks.
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7183352 |
Water-dilutable polyesters with cyclic imide structure
The present invention relates to novel polyesterpolyols with cyclic imide structure and to their use in coating compositions.
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7160528 |
Radiopaque cationically polymerizable compositions comprising a radiopacifying filler, and method for polymerizing same
Polymerizable compositions that include: (a) a cationically active functional group; (b) an initiation system capable of initiating cationic polymerization of the cationically active functional...
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7148307 |
Water-dilutable polyesters with cyclic imide and isocyanurate structure
The present invention relates to novel polyesterpolyols with cyclic imide and isocyanurate structure and to their use in coating compositions.
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7129318 |
RTM and RI processable polyimide resins
Polyimide resins that are suitable for processing by resin transfer molding (RTM) and resin infusion (RI) methods at reduced processing temperatures are provided. The inventive RTM and RI...
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7094826 |
Aqueous hyperbranched macromolecule coating compositions
An aqueous coating composition comprising a crosslinkable water-dispersible hyperbranched macromolecule(s) wherein the composition when drying has an open time of at least 20 minutes, a wet edge...
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7053172 |
Fuel-barrier polyamide resin and multilayer shaped article
The fuel-barrier polyamide resin of the present invention is a product of the polycondensation of a diamine component comprising 70 mol % or higher of m-xylylenediamine and a dicarboxylic acid...
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7026436 |
Low temperature polyimide adhesive compositions and methods relating thereto
The present invention relates to a polyimide adhesive composition having a polyimide derived from an aromatic dianhydride and a diamine component, where the diamine component is preferably about 50...
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7008995 |
Carboxy resin crosslinkers
Carboxy resins of low equivalent weight per carboxyl group are synthesized by reacting a compound having two or more isocyanate groups with a compound having one hydroxyl group and two or more...
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6984714 |
Siloxane-modified polyimide resin
This invention relates to a siloxane-modified polyimide resin which shows excellent adhesiveness and can be bonded by thermocompression at high temperature even after subjection to thermal...
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6930165 |
Modified polyamides, compositions based on same and macromolecular compounds used to obtain them
The invention concerns polyamides modified by a multifunctional compound. Finished articles formed from said polyamides or from compositions based on said polyamides exhibit excellent mechanical...
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6919422 |
Polyimide resin with reduced mold deposit
A polyimide composition and a process to prepare polyimide resins with reduced plate out and mold deposits is described. During resin molding operations the low plate out resins show a longer...
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6908983 |
Synthesis of high solids resins from amine terminated polyamides
The present invention contemplates a process for forming polyaminoamide polymers formed by the reaction of a dibasic acid/ester with excess amounts of an amine; the intermediate polymer resulting...
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6906165 |
Copolyamides and compositions based on same
The invention concerns copolyamides obtained by using multifunctional monomers. It consists in using a multifunctional monomer comprising at least three reactive functions and at least another...
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6887909 |
Processes for producing aqueous alkyd resin dispersions
The present invention provides production processes of aqueous alkyd resin dispersions, said processes comprising a step of synthesizing alkyd resin by dissolving polyester resin whose chief...
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6864354 |
Modified polyamides, polyamide compositions, and method for making same
The invention relates to modified polyamides, and more particularly to polyamides containing units of the type obtained by reacting a diacid with a diamine, modified with a multifunctional...
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6852828 |
Poly amic acid system for polyimides
A poly amic acid precursor containing a combination of tetrahydrofuran and N-methylpyrrolidinone as cosolvents is described. Utilizing the combination of tetrahydrofuran and N-methylpyrrolidinone...
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6849706 |
Copolyetherimides
Copolyetherimides comprise phthalimide structural units comprising both 3- and 4-linkages, wherein the designations 3-linkage and 4-linkage refer to the isomeric positions on the phthalimide ring...
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6846856 |
Mixed organic and inorganic composites with intermingled facial layers
A composite structure comprises an inorganic discrete phase, an organic matrix phase and an interfacial layer comprising both the inorganic and organic phases. In one process, the inorganic...
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6841651 |
Polyamide resin
The polyamide resin of the present invention is produced by polycondensation of a diamine component comprising 70 mol % or more of m-xylylenediamine and a dicarboxylic acid component comprising 70...
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6833429 |
Thermoformable polyamides
A reinforced polyamide molding composition is disclosed. Characterized in that its viscosity at a shear velocity of 10 s −1 is greater than 1000 Pas and a shear velocity of 1000 s −1 is less...
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6828413 |
Process for the preparation of a polyamide
The invention relates to a process for the preparation of a polyamide comprising at least a step in which a composition that comprises at least (a) a primary aminocarbonamide and (b) an...
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6818731 |
Polyamide resin composition
A polyamide resin composition contains 100 parts by weight of (A) a polyamide resin with a melting point of 270° C. to 340° C.; 0.2 to 20 parts by weight of (B) a compound represented by Formula...
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6812322 |
Polyamide
A process for the preparation of novel polyamides, the use of such polyamides for the production of fibers, sheets and moldings, and fibers, sheets and moldings obtainable from such polyamides, are...
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6787244 |
Adhesively bonded chip-and wafer stacks
The present invention describes the use of poly-o-hydroxy amides (PHAs) for adhesively bonding articles or materials, especially components used in the semiconductor industry, such as chips and...
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6784279 |
Aromatic polyamide compositions for molding
The instant invention provides an aromatic polyamide composition for molding which is of superior rigidity, strength, toughness, dimensional stability, resistance to chemicals, external surface...
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6784276 |
High-solids polyimide precursor solutions
This invention is a highly concentrated stable solution of polyimide precursors (monomers) having a solids content ranging from about 80 to 98 percent by weight in lower aliphatic alcohols i.e....
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6777526 |
OPTICALLY ACTIVE MALEIMIDE DERIVATIVES, OPTICALLY ACTIVE POLYMALEIMIDE DERIVATIVES, PRODUCTION METHOD THEREOF, SEPARATING AGENT USING THE SAME DERIVATIVE, AND METHOD FOR SEPARATING OPTICALLY ACTIVE COMPOUNDS USING THE SAME AGENT
A separating agent that serves as an optical resolution agent is composed of a novel, useful optically active polymer. The separating agent is obtained through anionic polymerization of a novel...
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6777525 |
Heat, moisture, and chemical resistant polyimide compositions and methods for making and using them
Polyimides having a desired combination of high thermo-oxidative stability, low moisture absorption and excellent chemical and corrosion resistance are prepared by reacting a mixture of compounds...
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6774205 |
Polyamides
A process for the preparation of novel polyamides, the use of such polyamides for the production of fibers, sheets and moldings, and fibers, sheets and moldings obtainable from such polyamides, are...
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6743851 |
Polyimide film
A polyimide resin composition comprising a polyimide resin (A) and at least one 1H-tetrazole (B) selected from the group consisting of 1H-tetrazole, 5,5′-bis-1H-tetrazole, and derivatives...
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6734276 |
Polyimide and circuit substrate comprising the same
The invention is a polyimide, random copolymer having repeating units of the formula (1): wherein R 1 and R 2 each represent a divalent group selected from and R 1 and R 2 may be the same...
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6734248 |
Pattern forming process using polyimide resin composition
A polyimide resin composition comprising a polyimide resin (A) and at least one 1H-tetrazole (B) selected from the group consisting of 1H-tetrazole, 5,5′-bis-1H-tetrazole, and derivatives...
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6710160 |
Polyamic acid, polyimide, process for producing these, and film of the polyimide
Disclosed are a polyamic acid having repeating units represented by the formula (1): wherein the norbornane skeleton of comprises four components of and their contents satisfy the following:...
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6693162 |
Polyimide resin and resin composition, adhesive solution, film-state joining component,and adhesive laminate film improved in moisture resistance using it, and production methods therefor
The present invention provides a polyimide resin, a resin composition, an adhesive solution, a film-state joining component, and an adhesive laminate film soluble in a solvent having excellent heat...
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6686412 |
Pastes containing matting and structuring agents and coating agents containing said pastes
Pastes containing flatting agents and/or texture additives, containing A) 5 to 30 wt. % of one or more thixotropic (meth)acrylic copolymers and/or one or more thixotropic polyesters B) 15 to 45...
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6677015 |
Molding composition with good capability for blow molding
A molding composition of at least 50% by weight of a polyamine-polyamide copolymer obtained from 0.05 to 2.5% by weight of a polyamine having at least 4 nitrogen atoms and having a viscosity of at...
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6653433 |
Polyimide composition having improved peel strength when clad
A polyimide film that exhibits improved peel strength when clad with a metal layer is prepared by reacting a polyamic acid polymer and an esterified polyamic acid oligomer. The esterified oligomer...
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6566486 |
Method of producing branched polyamides
A process for the production of polyamides is disclosed. In a first reaction step, suitable monomers such as caprolactam or an aliphatic aminocarboxylic acid are reacted with polyfunctional amines,...
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6538099 |
Nylon 12 composition
Disclosed is a member of nylon 12 having a relative viscosity of from 1.9 to 3.5 when measured in 98% sulfuric acid at a concentration of 10 g/dm 3 and at 25° C. and a melt flow rate of 0.1 g/10...
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6531568 |
Polyimide containing crosslinkable group and process for producing the same
This invention provides crosslinkable-group-containing polyimides of various known thermoplastic polyimide backbone structures, which are provided with far better heat resistance, chemical...
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6525166 |
Polyamides with high fluidity, method for making same, compositions said polyamide
The invention concerns a polyamide comprising macromolecular chains having a star-shaped configuration, a method for making said polyamide and compositions comprising same. More particularly, the...
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6486240 |
Method for producing an asymmetric support membrane by physical gelation and the membranes obtained thereby
An asymmetric support membrane can be prepared by using a phase separation method. The method includes immersing a polymer solvent solution into water. The polymer solution is made by dissolving 15...
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6479581 |
Aqueous-based polyamide-amic acid compositions
An aqueous-based composition comprising an aqueous solution of the product formed of the combination of a polyamide-amic acid and a triamine, preferably wherein the polyamide-amic acid is prepared...
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