|
Match
|
Document |
Document Title |
|
|
7629420 |
Tri-blend resin of PBI, PAEK, and PEI
A polymer blend comprises PBI, PAEK, and PEI. A method of making the foregoing blend comprises the steps of intimately blending PBI, PAEK, and PEI by dissolving PBI, PAEK, and PEI in a strong acid...
|
|
|
7425594 |
Copolymer of glycidyl ester and/or ether with polyol
A copolymer and a process of making the copolymer are disclosed. The copolymer is produced from reacting a glycidyl ester and/or ether with a polyol comprising a functionality of at least 2 wherein...
|
|
|
7285325 |
Membranes having improved mechanical properties, for use in fuel cells
An acid-doped, single-layer or multilayer polymer membrane comprising at least one layer A of a polymer blend with contains:
a) from 0.1 to 99.9% by weight of one or more polymers comprising...
|
|
|
7199174 |
Wide-gap filler material
This invention relates to a composition for repairing metallic articles which in its initial state is in the form of an adhesive, self-supporting putty, capable of being molded including 5–15% by...
|
|
|
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...
|
|
|
6767988 |
Polyamide elastomer
Polyamide elastomer comprising a hard segment derived from polyamide having no divalent aromatic group and a soft segment derived from polycarbonate diol having no divalent aromatic group has high...
|
|
|
6677427 |
Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same
A polyamide, the enzymatic reaction product of at least one polyamine and diester, and processes for preparing and using the same. In addition, processes for preparing and using the enzymatic...
|
|
|
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...
|
|
|
6667384 |
Methyl acrylate-diamine based polyamide resins and processes for producing the same
The present invention contemplates poly(aminoamide) pre-polymers, polyamide polymers, a multi-step process for the synthesis of these pre-polymers and polymers using acrylates and at least one...
|
|
|
6576340 |
Acid dyeable polyester compositions
An acid-dyeable polyester composition comprising (a) polyester and (b) secondary amine or secondary amine salt in an amount effective to promote acid-dyeability. The acid-dyeable polyester...
|
|
|
6538073 |
Polyamide graft copolymers
A graft copolymer suitable as a blend component or as a hot-melt adhesive, which contains the following monomer units: a) from 0.5 to 25% by weight, based on the graft copolymer, of a polyamine...
|
|
|
6468664 |
Poly(imide-siloxane) compound for tapeless LOC packaging
The present invention relates to a poly(imide-siloxane) compound useful as passivation layer for packaging tapeless LOC, which is produced by reacting in a polar solvent a diaminosiloxane compound...
|
|
|
6407182 |
Free-flowing transparent polyamide molding composition
Transparent molding compositions are prepared by blending from 50 to 99 parts by weight of a transparent polyamide, and from 1 to 50 parts by weight of a graft copolymer, such that the sum of the...
|
|
|
6323306 |
Preparation of water-soluble cross-linked cationic polymers
High molecular weight, water-soluble, cross-linked cationic polymers are prepared by reacting amine-functionalized cationic base polymers, in which the monomer units of the base polymer contain...
|
|
|
6294645 |
Dry-strength system
The invention relates to resin systems useful for imparting dry-strength to paper without substantially increasing the paper's wet-strength wherein the resin system comprises a cationic component...
|
|
|
6262223 |
Triamine-modified polymides having improved processability and low melt flow viscocity
Addition-cured polyimides that contain the reaction product of an aromatic triamine or trianhydride analogue thereof, a reactive end group such as 5-norbornene-2, 3-dicarboxylic acid, ester...
|
|
|
6222006 |
Wet strength thermosetting resin formulations and polyaminamide polymers suitable for use in the manufacture of paper products
An aqueous formulation of a high solid content fully functional thermosettable wet strength resin designed for use in the manufacture of paper products is disclosed. The wet strength resin is the...
|
|
|
6172178 |
Car parts made from a polyamide composition
Car part made from a polyamide composition wherein the polyamide substantially consists of 60-99 wt. % units derived from aliphatic dicarboxylic acids and diamines and the remaining chain units are...
|
|
|
6100347 |
Crystalline olefin resin composition
A crystalline olefin base resin composition having a high elastic modulus, a high heat resistance and excellent scratch resistance, and that is useful as a material for car parts and the like is...
|
|
|
6025439 |
Processing of thermoplastic rigid-rod molecular composites
Molecular dispersions of rigid-rod polybenzobisazole polymer/copolymer in thermoplastic matrices in a weight ratio of about 1:99 to 50:50 are prepared by dissolving the rigid-rod polymer in an...
|
|
|
5998550 |
Processing of thermoset rigid-rod molecular composites
Molecular dispersions of rigid-rod polybenzobisazole polymer/copolymer in thermosetting matrices in a weight ratio of about 1:99 to 50:50 are prepared by dissolving the rigid-rod polymer in an...
|
|
|
5981655 |
Process for preparing TPU molding compositions
A process for the continuous production of a thermoplastic molding composition containing a mixture of a TPU and a thermoplastic (co)polymer is disclosed. The process comprises (i) introducing...
|
|
|
5955549 |
Crosslinked poly(amino acids) and method of preparation
Crosslinked poly(amino acids) useful as superabsorbent polymers and an improved process for preparing the crosslinked poly(amino acids) is disclosed. Use of polyaziridine and polyepoxide...
|
|
|
5948881 |
Polyamide curing agents based on mixtures of polyethylene-amines, piperazines and deaminated bis-(p-aminocyclohexyl) methane
Curative compositions of amine terminated polyamide resins blended with a deaminated bis-(p-aminocyclohexyl)methane composition (DeAms) are useful for curing adhesive epoxy resin compositions. The...
|
|
|
5945233 |
Process for producing polybenzimidazole pastes and gels for use in fuel cells
A method for producing polybenzimidazole (PBI) paste or gel useful in a fuel cell, mixing PBI polymer with a suitable amount of an acid, which permits the polymer to dissolve and form a matrix...
|
|
|
5902862 |
Highly branched polyamidoamines and their preparation
An intralinked polyamidoamine which is nonthermosetting and endcapped. This intralinked polyamidoamine is the reaction product of a dicarboxylic acid or dicarboxylic acid derivative, a polyamine,...
|
|
|
5900471 |
Films of blended nylon resins and laminates therefrom
A composition which is a blend of at least two different polyetheramide copolymers, one having predominantly hard polyamide segments and one having predominantly soft polyether segments. When...
|
|
|
5853611 |
Polyether polymer, preparation process and use thereof
The present invention relates to a polyether polymer having structural units represented by general formula (1), wherein R 1 and R 2 mean individually an alkyl group of 1-20 carbon atoms, which...
|
|
|
5714552 |
Process for making epichlorohydrin resins
Disclosed is a two-step process for making an epichlorohydrin resin involving reacting the epichlorohydrin with a polyamine in a mixture first at a temperature of 25°-40° C. and then heating the...
|
|
|
5677384 |
Grafted polyamidoamines and grafted polyethyleneimines, preparation thereof, and use thereof as detergent additives
Grafted polyamidoamines and grafted polyethyleneimines obtainable by free-radically initiated polymerization of (a) 1-vinylpyrrolidone, 1-vinyltriazole, 1-vinylimidazoles, mixtures of said...
|
|
|
5656699 |
Oligoamide-epichlorohydrin resins as drainage aids
A water-soluble drainage-aid composition which is the reaction product of a bifunctional crosslinking agent which may be an epihalohydrin selected from the group consisting of epichlorohydrin or...
|
|
|
5594089 |
Heterocycle or heterocycle sulfone oligomers with multiple chemically functional end caps
Thermomechanical and thermo-oxidative stabilities in heterocycle or heterocycle sulfone resin composites are improved by forming four crosslinks at each addition polymerization site in the backbone...
|
|
|
H001629 |
Poly(aminoamideureylene) resin, its synthesis, and its use in paper and paperboard manufacture
The invention provides a novel poly(aminoamideureylene) resin and a process for making the resin without epichlorohydrin. The resin useful for improving wet strength of paper and paperboard...
|
|
|
5571874 |
Method of producing molecular composite material including rigid aromatic polymer
A molecular composite material having excellent properties such as mechanical strength, heat resistance, solvent resistance, etc. is produced by dissolving a prepolymer of a rigid aromatic polymer...
|
|
|
5543491 |
Copolymers of polysuccinimide and polycarboxylic acids
Copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition were obtained by reacting maleic acid, an additional polycarboxylic acid and ammonia in a stoichiometric...
|
|
|
5543489 |
Non-exuding thermoplastic elastomers
The invention relates to a composition based on a thermoplastic elastomer comprising polyether sequences in which the amount of matter extractable by ethanol is less than a value sufficient to...
|
|
|
5525703 |
Crosslinked polyaspartic acid and salts
There is disclosed novel cross linked polyanhydroaspartic acid which is the product of the reaction of a polysuccinidmide with triaminononoane (TAN). Depending upon the amount a cross linking agent...
|
|
|
5510427 |
Copolymers of polyaspartic acid
Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess,...
|
|
|
5498784 |
Phosphonic acid-pendent benzoxazole copolymers
Alcohol-soluble aromatic heterocyclic copolymers having repeating units of the formula: ##STR1## wherein x has a value of 0.05 to 0.50 and y has a value of 1.0-x. These copolymers are useful in the...
|
|
|
5478918 |
Low stress polyimide composition and precursor composition solution of same
A polyimide precursor composition solution includes a tetracarboxylic acid component containing not less than 70 mol % of at least one selected from the group consisting of benzenetetracarboxylic...
|
|
|
5470942 |
Preparation of anhydropolyamino acids
There is disclosed a process for preparing polyaspartic acid by thermal condensation of L-aspartic acid in a novel catalyst which shortens the reaction time and increases the molecular weight of...
|
|
|
5466749 |
Graft copolymers and graft copolymer/protein compositions
Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto...
|
|
|
5434222 |
Process for the preparation of polycondensates
The new process for the preparation of polycondensates from polyamidoamines, epichlorohydrin and if appropriate polyamines, unreacted epichlorohydrin being removed by passing an inert gas through...
|
|
|
5424391 |
Production of polysuccinimide by thermal polymerization of fumaramic acid
A method for producing polysuccinimide is provided. Thermal polymerization of fumaramic acid at a temperature of from about 160° C. to about 330° C. produces polysuccinimide. The reaction is...
|
|
|
5391605 |
Self-lubricating composition containing polybenzimidazole, graphite and boron nitride
A polymeric composition containing internal lubricants is suitable for low friction applications. The composition contains from about 65 to about 85 weight percent of a polymeric blend and from...
|
|
|
5373087 |
Unsaturated polyaminopolymers, derivatives thereof and processes for making them
A process for preparing a polyaminopolymer which contains functionality comprises the steps of (a) contacting a polyfunctional amine with an unsaturated alkylating agent under reaction conditions...
|
|
|
5366781 |
Oriented, shape articles of lyotropic/thermally-consolidatable polymer blends
An oriented, shaped article comprising at least about 55% and less than about 80% by weight of a first polymer phase of at least one lyotropic polymer and at least about 20% and less than about 45%...
|
|
|
5357004 |
Copolymers of polyaspartic acid
Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess,...
|
|
|
5354829 |
Silylated polyamine polymers and a method of treating fibers
A polymeric reaction product is disclosed that is a silylated polyamine-containing polymer having moieties from fatty acid moieties and/or chain extenders as difunctional organo moieties and free...
|
|
|
5344896 |
Water soluble rigid-rod polymers
Water-soluble rigid-rod aromatic heterocyclic polymers having repeating units of the formula: ##STR1## wherein n has a value of 0.05 to 1.00, M is an alkali metal, Q is a benzobisazole of the...
|