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7605223 |
Low melt viscosity imide oligomers and polyimides therefrom
The present invention relates to novel imide oligomer compositions, polyimides formed therefrom, and methods for making and using the same. In particular, the invention relates to novel polyimide...
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7550553 |
Fluorinated diamine and polymer made from the same
A fluorine-containing diamine represented by the formula (1), [Chemical Formula 29]
is provided. Furthermore, a fluorine-containing polymer is provided by using this fluorine-containing amine...
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7407544 |
Polymeric dispersants based on addition of amines to dialkylsuccinyl succinate or its derivatives
Dispersants for pigments as well as dispersions of pigments containing them, and compositions such as inks and coatings containing them are described. The dispersants are the reaction product of a...
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7253249 |
Ester-terminated poly(ester-amide) in personal care products
A resin composition is prepared by reacting components comprising dibasic acid, diamine, polyol and monoalcohol, wherein (a) at least 50 equivalent percent of the dibasic acid comprises polymerized...
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7193030 |
Acid anhydride and polyimide using the same
An acid anhydride of the formula (4), and a polyimide using the acid anhydride,
wherein anhydrides are substituted at sites 3 or sites 4, which acid anhydride is obtained from, as a raw...
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7173103 |
Modified Suzuki-method for polymerization of aromatic monomers
A process for preparing high molecular weight polymers or copolymers by Suzuki coupling. The catalyst used in the process comprises a source of palladium and a source of a phosphine characterized...
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7173101 |
High toluene diisocyanate-stable blue colorants
An inventive blue colorant comprising a chromophore having at least one hydroxy group-terminated polyester chain attached, through a suitable alkylamino linking group (or groups), to the...
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7138483 |
Monomers, conjugated polymers and electronic devices using such polymers
The energy levels (HOMO, LUMO) of the conjugated polymer are tuned independently, so that an energy match on both sides of the device can be accomplished while keeping the emission color in the...
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7138476 |
Compositions for golf equipment
Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These compositions comprise at least one fatty compound chosen from fatty...
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7115703 |
Compositions for golf equipment
Golf balls comprising thermoplastic, thermoset, castable, or millable compositions are presently disclosed. These compositions comprise reaction products of polyacids and polyamines. The polyacid...
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7112647 |
Fluorinated polymer
An object of the present invention is to provide a fluorinated polymer of adequate molecular weight with excellent transparency in a wavelength range from visible to near infrared, and to also...
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7101652 |
Photosensitive resin compositions
New photosensitive PBO precursor polymers which contain diazoquinone moieties attached to its backbone and in which all amino end groups are converted into amide groups. The photosensitive...
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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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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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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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7045241 |
Proton conductive solid polymer electrolyte and method for producing the same
A monomer to produce polybenzimidazole is dissolved in polyphosphoric acid. For example, polysulfated phenylene sulfonic acid (acidic group-possessing polymer) is further dissolved in this...
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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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6943231 |
Transparent polyamide molding materials having improved transparency, resistance to chemicals and high permanent fatigue strength
Transparent polyamide molding materials are provided which are characterized in that they have a melting enthalpy between 0 and 12 J/g and the polyamides are constituted of 100 mole-% of a diamine...
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6936682 |
Polyamide
A polyamide characterized in that the polyamide is obtained by thermal polycondensation of (a) dicarboxylic acid components comprising 10 to 80% by mole in total carboxylic acid components of...
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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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6875245 |
Ester-terminated poly(ester-amides) in personal care products
A resin composition is prepared by reacting components comprising dibasic acid, diamine, polyol and monoalcohol, wherein (a) at least 50 equivalent percent of the dibasic acid comprises polymerized...
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6812324 |
Method for preparing nylon 6 copolymer containing sulfonate comonomers
A method for preparing nylon 6 copolymer containing 5-sulfoisophthalate salts comonomer. The method includes the steps of reacting 5-sulfoisophthalate salts ester with aliphatic diamine in a molar...
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6753048 |
Material for liquid-crystal alignment film, liquid-crystal display element, process for its production and liquid-crystal display unit
A material for a liquid-crystal alignment film which comprises as a first polyamide a C3 to C10 alkyl ester of a polyamic acid whose acid anhydride residual group is any of: and as a second...
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6747120 |
Copolyamide based on tetramethylene terephthalamide and hexamethylene terephthalamide
The invention relates to a semi-aromatic polyamide containing at least tetramethylene terephthalamide units and also hexamethylene terephthalamide units. The copolyamide has a melting point higher...
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6696544 |
Method for making polyamides
The invention concerns a method for making polyamide. More particularly, the invention concerns a method for making polyamides derived from the reaction between a diacid and a diamine. It concerns...
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6680364 |
Water dispersible polyamides with ethylenically unsaturated ends
The invention describes polyamides having both strongly hydrophilic groups and unsaturated groups, the polyamides consequently being water-dispersible and curable. The hydrophilic groups are...
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6610816 |
Process for production of polyamide
In the production of polyamide by the melt-polymerization of the present invention, the polymerization conditions are rapidly and accurately controlled by a near-infrared spectroscopy to enable the...
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6552160 |
Ester-terminated poly(ester-amides) useful for formulating transparent gels in low polarity fluids
A resin composition is prepared by reacting components comprising dibasic acid, diamine, polyol and monoalcohol, wherein (a) at least 50 equivalent percent of the dibasic acid comprises polymerized...
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6500912 |
Epoxy resin system
A curable epoxy composition comprises an epoxy resin having at least 1.5 epoxy groups per molecule and an amine-terminated polyamide. The liquid amine-terminated polyamide is prepared by reacting a...
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6414103 |
Coating powders comprising macrocyclic oligomers
A coating powder comprising a macrocyclic oligomer and a ring-opening polymerization agent is applied to an article, fused, and converted to a linear polymer at a temperature of from about 160 to...
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6392009 |
Extended-rod benzobisazole polymers
Benzobisazole polymers having repeating units of the formula wherein Z is wherein X is —S—, —O— or —NH—.
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6355769 |
Partially aromatic polyamides and a process for making them
A process for making partially aromatic polyamides is provided in which an aromatic dicarboxylic acid component, at least 20-100% by weight of the dicarboxylic acid in the acid component is in the...
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6350305 |
Selected polymeric furanone magenta colorants
A polymeric furanone magenta colorant is disclosed that contains a furanone magenta chromophore having a furanone adduct, the adduct containing at least one alkoxylated phenyl radical, the...
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6348562 |
Synthetic polyamides
A process of increasing the melt processing of synthetic polyamides, in particular pigmented and/or filled synthetic polyamide, by adding thereto an additive having the formula (I) wherein R 1 ...
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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...
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6204355 |
Use of polyamide moulding compounds for manufacturing optical or electro-optical moulded members
The invention relates to the use of polyamide moulding compounds, their alloys or blends, which contain at least one homopolyamide, which has been obtained from long-chained aliphatic monomer...
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6194538 |
Process for producing polyamides from aminonitriles
A process for preparing a polyamide by reacting at least one aminonitrile with water comprises: (1) reacting at least one aminonitrile with water at a temperature from 100 to 360° C. and a...
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6169162 |
Continuous polyamidation process
A process for producing a polyamide from dicarboxylic acid monomer and diamine monomer comprises the steps of: (a) mixing molten dicarboxylic acid monomer and molten diamine monomer in equimolar...
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6156869 |
Method for producing polyamides
A method for producing polyamides, and to a method for producing primary polycondensates which are intermediates for polyamide production. More precisely, the invention relates to a method for...
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6150496 |
Inherently light-and-heat-stabilized polyamide and method of making the same
An inherently light- and heat-stabilized polyamide has at least one piperidine compound bonded to the backbone polymer chain and at least one 4-amino-2,2,6,6-tetramethylpiperidine compound bonded...
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6130312 |
Production of aromatic polyamide
A process for producing an aromatic polyamide which comprises: (a) a dicarboxylic acid component which consists of 30-100 mol % of terephthalic acid and optionally 0-70 mol % of at least one...
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6103860 |
Fluorine-containing polyamide
There is disclosed an organic optical component prepared from a resin essentially comprising one or more repetitive structural units selected from the group consisting of structures represented by...
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6103852 |
Method for preparing amorphous polymer chains in elastomers
A method for preparing an amorphous polymer chain in an elastomer which permits use of previously unavailable monomers while permitting control of crystallizability of the amorphous polymer chain....
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6011134 |
Method for manufacturing poly(hexamethylene adipamide) from monomethyladipate and hexamethylenediamine
An improved method for manufacturing poly(hexamethylene adipamide), i.e. nylon 6,6, by reacting monomethyl adipate with hexamethylenediamine in an approximately equimolar ratio in the presence of...
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5990270 |
Amorphous, transparent polyamide compositions and articles having reduced flammability
A polyamide composition which is amorphous and transparent, which has reduced flammability, and which has reduced migration of flame-retardant additive so that it is film-free, includes at least...
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5990261 |
Organic optical component
A low birefringent organic optical component prepared from a resin consisting essentially of one or more repetitive structural units selected from the group consisting of structures represented by...
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5981692 |
Semi-crystalline, semi-aromatic terpolymers with superior post-molding shrinkage and balance of mechanical performance
This invention relates to high temperature, semi-crystalline, semi-aromatic nylon terpolymers with improved shrinkage resistance, made from terephthalic acid (TA), hexamethylene diamine (HMD)...
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5962628 |
Partially aromatic polyamides having improved thermal stability
Improved high temperature polyamides, and particularly partially-aromatic polyamides, containing less than about 40 μeq/g carboxylic acid endgroups. When stabilized with a copper-containing...
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