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6541599 |
Process for manufacture of soluble highly branched polyamides, and at least partially aliphatic highly branched polyamides obtained therefrom
A process for the manufacture of soluble hyperbranched polyamides is disclosed comprising the steps of combining multifunctional monomer reactants comprising amine and carboxylic acid functional...
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6541535 |
High powered radiation and/or thermal hardening coating powder with a functionalized based structure
The invention relates to a binder for powder coating materials having an oligomeric or polymeric substructure which are curable thermally and/or by means of high-energy radiation, said binder...
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6541600 |
Water soluble and dispersible highly branched polyamides
Highly branched polyamides prepared in a single step procedure of condensation polymerization of multifunctional monomer reactants comprising amine and carboxylic acid functional groups....
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6534178 |
Carboxyl-functional polyester epoxy resin powder coatings based on 1,3-propanediol
In accordance with the foregoing, the present invention comprises a polyester epoxy resin powder coating exhibiting improved impact resistance and flexibility, without the loss of other key...
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6534624 |
Process for producing alkyd resins
A process is disclosed, which enables production of alkyd resins within a short time, by conducting depolymerization and esterification reactions of polyester resins whose main starting material is...
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6533967 |
Initiating system for solid polyester granule manufacture
The invention relates to the use of a diacyl peroxide in combination with an aromatic amine of formula (I) where R 1 is C 1 -C 20 alkyl having at least one hydroxy substituent or...
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6528612 |
Highly branched polycondensates
A highly branched polycondensate is described. The polycondensate is prepared by polycondensating (a) monomers capable of polycondensation in the presence of (b) branching agents, wherein the...
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6528611 |
Method for forming a finely divided polymerizate
The method for forming a finely divided polymerizate in the form of a dispersion (D) of particles ( 50, 51 ) for the purpose of manufacturing powder lacquers or fiber compound materials comprises...
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6525165 |
Trimethylene-2, 6-naphthalene dicarboxylate (co)polymer film, quaternary phosphonium sulfonate copolymer and compositions thereof
An aromatic polyester film, which comprises an aromatic polyester comprising 2,6-naphthalenedicarboxylic acid as the main dicarboxylic acid component and 1,3-propanediol as the main diol component...
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6521736 |
Amphiphilic polymeric materials
The invention is based in part on the discovery of polymers that can complex with certain types of therapeutic drugs and transport those drugs across cell membranes in cell cultures with...
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6518392 |
Dielectric compositions, preparation thereof, and integrated circuit devices fabricated therewith
A novel dielectric composition is provided that is useful in the manufacture of integrated circuit devices and integrated circuit packaging devices. The dielectric composition is prepared by...
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6518390 |
Precursor of a heat resistant resin, heat resistant resin, insulating film and semiconductor device
A precursor of a polybenzoxazole resin which comprises a crosslinking group in a molecule and has a specific structure, a polybenzoxazole resin obtained from the precursor by the condensation...
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6515080 |
Process for preparation of polyethylene terephthalate modified by o-phthalic acid units
The invention relates to a process to produce polyethylene terephthalate modified with o-phthalic acid units while avoiding any high phthalic acid losses during esterification or polycondensation...
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6512078 |
Process for manufacturing polyester
The present invention refers to the production of a polyester-type polymer and more particularly to the solid phase condensation of a polyester. The invention presents a process for manufacturing...
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6506853 |
Copolymer comprising isophthalic acid
A substantially soluble solution of isophthalic acid in a glycol can be prepared and contacted with terephthalic acid, its ester, its oligomer, or combinations of two or more thereof. The solution...
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6504003 |
Synthesis of higher polyol fatty acid polyesters by transesterification
A process for synthesizing polyol fatty acid polyesters comprising the steps of (1) mixing ingredients comprising (a) unesterified first polyol having hydroxyl groups, (b) second polyol esterified...
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6498225 |
Polycarbodiimide-based block copolymers, a method of preparing them and their use as hydrolysis stabilizers
The invention relates to carbodiimide-based block copolymers, a method of preparing them and also their use as hydrolysis stabilizers in ester-group-containing polymers. The advantages of the block...
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6492487 |
Process for making reactive unsaturated polyester resins from 2-methyl-1, 3-propanediol
A two-step process for making reactive unsaturated polyester resins is disclosed. First, an aromatic dicarboxylic acid derivative reacts with 2-methyl-1,3-propanediol (MPD) to produce an ester diol...
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6489433 |
Metal-containing composition and process therewith
A composition that can be used as catalyst is disclosed. The composition comprises, or is produced by combining, (A) a titanium compound; (B) either (i) a complexing agent, (ii) a combination of a...
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6479625 |
Mechanical stress crystallization of thermoplastic polymers
A method of crystallizing particles of amorphous thermoplastic polymer particles in a mechanically fluidizing horizontal cylindrical crystallizer so that each particle is crystallized to...
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6479619 |
Sulfoisophthalic acid solution process therewith
A process for producing a partially esterified SIPA such as an alkali metal sulfoisophthalic acid in a glycol is disclosed. The partially esterified SIPA in a glycol can be used to copolymerize...
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6476180 |
Process for producing an oriented shaped article
A process for producing an oriented shaped article that comprises the steps of (a) forming a shaped article comprising a block copolymer comprising 75% to 90% by weight of polyethylene...
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6472480 |
Coating composition
A coating composition is disclosed that is intended for application to the interior surface of a can and is free of Bisphenol A diglycidyl ether and comprises a phenoxy group-containing or amino...
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6469129 |
Process for crosslinked branched polyesters
A process for making a crosslinked branched polyester gel from at least two pregel compositions comprising: a) reacting precursor repeat units formed from (1) at least one polyol having three or...
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6458385 |
Hydrogels containing absorbable polyoxaamides
The present invention describes a crosslinked aliphatic polyoxaamide polymer and blends thereof that may be used to produce hydrogels, surgical devices such as catheters, molded devices, and the...
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6458915 |
Process for producing poly(1,4-cyclohexylenedimethylene 1,4-cyclohexanedicarboxylate) and the reactor grade polyester therefrom
In a process for producing a reactor grade polyester, a poly(1,4-cyclohexylenedimethylene 1,4-cyclohexanedicarboxylate) has a reduced amount of isomerization of the trans-isomer to the cis-isomer...
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6458913 |
Insert molded article
A molded structure comprises a decorative film or substrate, and an adjacent injection molded polymeric base comprising a substantially transparent cycloaliphatic polyester resin which may have an...
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6455666 |
Polyesters and production process thereof
A polyester is a polycondensation product of (i) a diol component and (ii) a dicarboxylic acid component. In this polyester, the diol component (i) includes a tricyclo[3.3.1.1 3,7 ]decanediol of...
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6455665 |
Polymers and polymerization processes
The present invention provides improved processes for purifying polymer preparations by removing contaminants, such as metal contaminants. The present invention also provides improved processes for...
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6455664 |
Crystalline polyester resins and process for their preparation
In a process for producing PCCD polyester of the formula by reacting a starting CHDM and a starting DMCD in the presence of a catalyst to produce an aliphatic alcohol and an acid interchange...
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6444782 |
Process for making pre-gels for a cross-linked branched polyester
The invention relates to a process for making a high molecular weight pre-gel for a cross-linked branched polyester comprising: a) reacting polyester precursor repeat units via condensation...
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6444780 |
Method of producing polyetherester monomer and cement dispersants
Polyetherester monomer of the kind where R 1 , R 2 and R 3 are each a group of a specified kind and A is a residual group of another specified kind is produced by an esterification reaction of...
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6437086 |
Non-extractable polymeric metal salt useful in catalyzing oxygen scavenging
Herein are disclosed polymeric metal salts useful in catalyzing oxygen scavenging by oxygen scavenging polymers. The polymeric metal salts comprise structure I: wherein R is selected from C 1...
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6437087 |
Polyester resin for powder coating
An unsaturated carboxyl group-terminated polyester resin having suitable properties for use in a powder coating for wood and other temperature-sensitive substances is disclosed.
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6429233 |
Method for reusing polyester chip
This invention relates to a method for recycling a polyester chip which comprises providing a polyester chip (a), polyol (b) and polybasic acid (c), subjecting said (a) and said (b) to...
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6423814 |
Polyester resin composition
A polyester resin composition is disclosed, comprising poly(trimethylene terephthalate) in a proportion of 90 wt % or more, wherein the resin composition has an intrinsic viscosity of from 0.4 to 2...
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6423304 |
Dimerized fatty acid based polyamides useful for clear candle and gel applications
Blooming and/or syneresis in gel formulations can be reduced or eliminated by adding to an organic mixture an effective amount of a polyamide gelling agent having a softening point of less than...
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6419709 |
Biodegradable terephthalate polyester-poly(Phosphite) compositions, articles, and methods of using the same
An essentially non-osteoconductive medical device is described comprising a biodegradable terephthalate copolymer comprising the recurring monomeric units shown in formula I: wherein R is a...
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6419851 |
Melt processible liquid crystalline terpolyesters and process for the preparation thereof
Melt processable liquid crystalline terpolyesters of the formula I below: where R is Cl, C 6 H 5 , CH 3 CO, CH 3 , and process for the preparation thereof are disclosed. The process comprises...
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6417266 |
Process for preparing aliphatic polyester
A process for producing aliphatic polyester wherein a crystallized aliphatic polyester prepolymer formed from an aliphatic dihydric alcohol and an aliphatic dicarboxylic acid and having a...
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6414108 |
Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings
Biodegradable polyether esters P1 obtainable by the reaction of a mixture consisting essentially of: (a1) a mixture essentiall) of 20 to 95 mol % adipic acid or ester-forming derivatives thereof or...
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6413539 |
Hydrogel-forming, self-solvating absorbable polyester copolymers, and methods for use thereof
The present invention provides novel hydrogel-forming, self-solvating, absorbable polyester copolymers capable of selective, segmental association into compliant hydrogels upon contacting an...
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6407201 |
Plasticizers for bowling ball coverstocks
The present invention provides a plasticizer compound having the general formula: in which n=1 to 3, R represents a C 2 -C 8 straight or branched aliphatic hydrocarbon chain or C 6 -C 10 ...
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6407194 |
Temporarily crosslinked polyester polymers
A process for increasing the pill resistance of a polyester polymer wherein the polyester polymer is produced by polymerizing a polymerization mixture comprising (a) a carbonyl compound or an...
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6403762 |
Solid state polymerization process for poly(trimethylene terephthalate) utilizing a combined crystallization/preheating step
The present invention is an improvement upon the process for producing poly(trimethylene terephthalate) (PTT) wherein 1,3-propanediol (PDO), and optionally other diols, and an aromatic diacid or...
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6403670 |
Thermosetting composition containing polyhemiacetal ester resin and powdery thermosetting composition
The present invention relates to a thermosetting composition which comprises: (A) a polyhemiacetal ester resin having a repeat unit represented by formula (1): wherein R 1 and R 2 are a...
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6403756 |
Biodegradable high molecular weight polyester and method of preparing same
Disclosed is a novel, high molecular weight aliphatic polyester having excellent mechanical strengths such as breaking strain and containing a copolymer structure with 3-alkoxy-1,2-propane diol and...
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6399737 |
EMI-shielding thermoplastic composition, method for the preparation thereof, and pellets and articles derived therefrom
A composition comprises a thermoplastic resin and an electromagnetic shielding agent that contains a synergistic combination of metal-coated fibers and metal fibers. The composition provides...
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6392006 |
Condensation polymer containing hydroxyalkylamide groups
The invention relates to a linear or branched polymer containing ester groups and at least one amidegroup in the backbone, having hydroxyalkylamide end groups and having a weight average molecular...
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6384181 |
Method of production polyamide resin wherein carboxylic acid-activator and/or inorganic salt is present in reaction system therefor
A method of producing a polyamide resin by reacting with at least one diamine compounds at least one linear polyester resin consisting of at least one dicarboxylic acid component and at least one...
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