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7582721 |
Two step preparation of random polyoxadiazole copolymer and articles resulting therefrom
In a preparation of random polyoxadiazole copolymer by reaction of a mixture of oleum, hydrazine sulfate, terephthalic acid, and isophthalic acid, the improvement requires the addition of oleum in...
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7560520 |
Interface-directed branched polymer transports and methods for producing same
Methods and systems for modifying a polymer are disclosed herein. A matrix is generally provided having a surface thereof, wherein the matrix comprises a plurality of hyperbranched polymers. The...
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7557176 |
Polyhydroxyalkanoic acid having vinyl, ester, carboxyl or sulfonic acid group and producing method therefor
The invention is to provide a novel polyhydroxyalkanoate having a reactive function group within the molecule and a producing method therefor In a polyhydroxyalkanoate containing a unit having a...
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7442745 |
Aminomethyl polystyrene resin and preparation process for the same
The present invention relates to an aminomethyl polystyrene resin wherein aminomethyl group is grafted only on the surface of polystyrene resin, and a preparation process for the same. More...
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7408018 |
Elastomeric functional biodegradable copolyester amides and copolyester urethanes
The invention provides elastomeric copolyester amides, elastomeric copolyester urethanes, and methods for making the same. The polymers are based on α-amino acids and possess physical, chemical...
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7381788 |
Method for continuous production of polyamide
Provided is a continuous production method of a polyamide with stabilized polymerization degree and good quality, particularly an aromatic-containing polyamide. A continuous production method of a...
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7309757 |
Polymers for the delivery of bioactive agents and methods of their preparation
Provided is a poly(amino ester) having a polymer backbone comprising at least one secondary amine linkage and at least one tertiary amine linkage in the polymer backbone. Poly(amino ester)s are...
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7297756 |
Melt-adhesives for sealing off rocks or building materials
Polyamide hot-melt adhesives based on the reaction products of polymeric fatty acids, C 14 -C 18 monocarboxylic acids, C 6 -C 12 dicarboxylic acids and diamines which do not contain any...
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7285675 |
N-hydroxyalkyltrimellitimide esters and bis-(trimellitimide) esters and method of making
The present invention relates to trimellitic anhydride imide ester, a method of making it, and polyesters or polyamides that can be modified with trimellitic anhydride (TMA) to provide better heat...
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7285601 |
Inherently crosslinkable polyamides
A polyamide which contains a monoolefinically unsaturated compound chemically bonded at the end of the polymer chain, a process for preparing this polyamide, a polyamide obtainable by crosslinking...
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7276572 |
Process for preparing aspartates
The present invention relates to novel aspartates, their method of production and the use of these mono and polyaspartates as reactive components for polyisocyanates in two-component polyurethane...
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7259225 |
Thermosensitive poly (organophosphazenes), preparation method thereof and injectable thermosensitive polyphosphazene hydrogels using the same
Disclosed are polyphosphazenes of Formula 1 showing a sol-gel behavior with a temperature change, a preparation method thereof, and injectable thermosensitive polyphosphazene hydrogels using the same
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7247367 |
Polyimide film and process for producing the same
The polyimide film of the present invention is produced in the following manner: polyamic acid made of a combination of a specific acid anhydride constituent and a specific diamine constituent are...
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7244803 |
Poly-o-hydroxyamide, polybenzoxazole from the poly-o-hydroxyamide, electronic component including a polybenzoxazole, and processes for producing the same
A dielectric for aluminum and copper metalizations is stable at high temperatures. Surprisingly, in spite of the elimination of water during the cyclization, the polymeric dielectrics are very...
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7244485 |
Imageable seamed belts having polyamide adhesive between interlocking seaming members
A seamed flexible belt having a substrate and a seam having interlocking seam members, wherein the interlocking seam members are held together by an adhesive having polyamide and an optional...
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7193020 |
Film and laminate of the same
A film comprising a resin alloy of a liquid-crystalline polyester, a polyimide and an optional inorganic filler is provided. The film is excellent in heat resistance and dimensional stability.
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7138482 |
Production method of polyamide
In the production method of polyamide of the present invention, the mole balance at a set point during melt polymerization is estimated from a pre-established equation for calculating the mole...
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7122618 |
Quaternary polyamidoamines, the production thereof, corresponding agents and the use thereof
The present invention relates to quaternized polyamidoamines which have at least one structural unit of the formula VII
in which R 1 , R 2 , R 4 are straight-chain or branched organic...
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7122244 |
Polyamide-imide resin solution and the use thereof for producing wire enamels
The present invention relates to a polyamideimide resin solution preparable by reacting (a) aromatic polycarboxylic acids and/or their anhydrides with (b) aromatic imide- and amide-forming...
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7091306 |
Process for preparing polyalkenylsuccinimides
The present invention relates to an improved process for preparing polyalkenylsuccinimides having a sediment level less than 0.1 vol % comprising the steps of:
(a) preparing a polyalkenyl...
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7070864 |
Laminate for electronic materials
This invention relates to a laminate which is excellent in heat resistance after moisture absorption required in a lead-free solder joint, and is suitable for use in flexible printed wiring boards...
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7067599 |
Fuel oil additives and compositions
A copolymer comprising units derivable from (A) one or more olefins of defined chain length; and (B) one or more ethylenically unsaturated compounds different from (A). The copolymers are useful as...
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7064176 |
Coating material for electronic components
The invention relates to novel polyhydroxyamide compounds that, in the form of their oxazoles, ane suited as a coating material, particularly for electronic components. The invention also relates...
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7057008 |
Packaging and containers made of water-soluble polyamides and processes for their manufacture
Packaging materials made from water-soluble nylons are disclosed, that readily contain materials such as caustic chemicals and upon exposure to water dissolve to provide for the release of the...
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7056988 |
Polymer compound, process for producing the same, molded article and process for producing the same
A polymer compound contains a cyclic structure represented by the following general formula (1):
wherein each of X and Y represent an alkylene group or the like, where X and Y may be the same...
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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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7053171 |
Production method of polyamide
In the production method of the present invention, the polyamide is produced by the polycondensation of a diamine component and a dicarboxylic acid component comprising a straight-chain...
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7053169 |
Polyamide molding compounds for producing optical lenses
The invention relates to new thermoplastically processible transparent polyamide molding materials based on copolyamides containing diamines and dicarboxylic acids with aromatic cores which exhibit...
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7052766 |
Functionalized halogenated polymers for microencapsulation
The present invention is directed to a novel reactive protective colloid system suitable for stabilizing an electrophoretic display in which a halogenated solvent, particularly a fluorinated, more...
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7048925 |
Acid-sensitive polyacetals and methods
Polyacetals comprising a recurring units represented by a formula selected from the group consisting of formula (I) and (II):
wherein A comprises at least one acetal group; B is selected...
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7038006 |
Polyamide and resin composition
A polyamide obtained by polycondensation of a diamine component containing at least 50 mol % of 2-methyl-1, 5-pentanediamine and a dicarboxylic acid component containing at least 50 mol % of...
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7037527 |
Bifunctionalized polyester material for surface treatment and biomodification
The invention features a method of treating polyester material to generate functional carboxylic acid and amine groups. These functional groups can be used as sites for covalent bond formation to...
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7026435 |
Water-dispersible, hydrophobic polyalkyleneimine polyamide fiberglass lubricant, process for producing the same, and method of use therefor
Polymer derivatives based upon polyalkyleneimine backbones having from about 20% to about 60% of their reactive amino functionalities substituted by C 14-20 carboxylic acids, are disclosed. Fiber...
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7022802 |
Silicone oil pastes
Pastes comprise (1) siloxane copolymers which contain at least two groups of the general formula
—C(O)NR 1 —
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7022214 |
Carrier ampholytes of high pH range
Carboxylic acid-substituted polyalkylene polyamines in which amine nitrogen atoms on the polyamine backbone structure are replaced by guanidine groups provide a pH range extending into high pH...
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7009030 |
High-melting wax useful for sintering metals
A wax containing the reaction product of: (a) a C 6 –C 12 linear dicarboxylic acid; and (b) a diamine of formula H 2 N(CH 2 ) n NH 2 , wherein n is an integer from 2 to 6, and the molar ratio of...
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7009029 |
Polyamide composition
Provided is a polyamide composition comprising 100 parts by weight of (A) a polyamide having dicarboxylic acid units containing 60 to 100 mol % of terephthalic acid units, and diamine units...
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7009028 |
Continuous process for the production of polyamides
In a two-step precondensate process for preparing polyamides diamines are reacted with dicarboxylic acid dihalides in a polar, non-basic, inert organic liquid medium under conditions such that a...
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7001606 |
Biocidal polymers based on guanidine salts
The invention relates to biocidal polymers based on guanidine salts characterized in that they are representatives of a number of polyoxyalkylene guanidines and their salts and are a product of a...
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6995233 |
Process for manufacturing polyamides
The invention relates to a continuous process for manufacturing polyamides. The polyamides are of the type obtained from diacids and diamines. The process comprises an operation of continuous...
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6989106 |
Process for the preparation of polymeric condensates and their use
A process for the preparation of polymeric condensates, wherein the reaction mixture is fed at least once during the condensation reaction through a zone of high energy density which has an energy...
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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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6962730 |
Coating composition containing crosslinkable monomeric difunctional compounds having at least thirty carbon atoms
The invention provides coating compositions comprising a reactive component (a) which is substantially free of any heteratoms and is a not a crystalline solid at room temperature and which...
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6962693 |
Alkylpolypropyleneoxide amidotriamines and method of using same
Alkylpolypropyleneoxide amidotriamines having antimicrobial activity are described. The compounds are useful as antimicrobial preservatives in various types of pharmaceutical compositions....
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6958381 |
Polyamide
A process for preparing polyamides comprises polymerizing starting monomers in the presence of from 2.3 to 10 mmol, based on 1 mol of carboxamide group of the polyamide, of a chain regulator...
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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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6916901 |
Production of polyamide
The present invention provides a method for the production of polyamide 6 by the hydrolytic polymerization of ε-caprolactam, in which, in the first step, caprolactam ring opening occurs under the...
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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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6900284 |
POLY-O-HYDROXYAMIDES, POLYBENZOXAZOLES, PROCESSES FOR PRODUCING POLY-O-HYDROXYAMIDES, PROCESSES FOR PRODUCING POLYBENZOXAZOLES, DIELECTRICS INCLUDING A POLYBENZOXAZOLE, ELECTRONIC COMPONENTS INCLUDING THE DIELECTRICS, AND PROCESSES FOR MANUFACTURING THE ELECTRONIC COMPONENTS
Poly-o-hydroxyamides are cyclicized to obtain polybenzoxazoles. The poly-o-hydroxyamides provide effective filling of trenches. In particular, the poly-o-hydroxyamides can fill trenches having a...
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