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5886137 |
Preparation of salts of polyaspartic acid and their use in detergents and cleaners
A process for preparing salts of polyaspartic acid by treating polycondensates in aqueous medium with bases, employing at least 0.7 equivalent of an alkali metal and/or alkaline earth metal base...
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5859152 |
Water-dispersible adhesive blend composition and process
Disclosed is a water-dissipatable or dispersible adhesive composition that is useful in forming paper articles and other products that can be recycled through repulping in both neutral and alkaline...
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5859176 |
Polyamide resin composition
Disclosed is a polyamide resin composition comprising a melt-kneaded product of (A) a polyamide; (B) a polyphenylene ether; (C) a styrene polymer; and (D) a compound having in a molecule thereof a...
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5856428 |
Crystalline aromatic polyamide resin composition
An aromatic polyamide resin composition composed of two types of aromatic polyamide (A) and (B), where (A) is an aromatic polyamide wherein the molar ratio of aromatic polyamide with respect to the...
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5856426 |
Para-oriented aromatic polyamide porous film
A para-oriented polyamide porous film comprising a fibril having a diameter of not more than 1μ, with fibrils planarly arranged as a network or nonwoven fabric and laminated in a layer, the...
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5854379 |
Thermal decomposition degreasing method and molded products thereof
A low-cost thermal decomposition degreasing method capable of drastically reducing the time required for a degreasing process which involves heating, vaporization and thermal decomposition, while...
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5852165 |
Terpolymer polyamide, polyamide resin composition containing the same, and automotive parts obtaining from these
A crystalline terpolymer polyamide produced from: (a) an equimolar salt of hexamethylenediamine with adipic acid, (b) an equimolar salt of hexamethylenediamine with terephthalic acid, and (c)...
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5852109 |
Poly-α-amino acid particles, emulsions containing the same and process for preparing the same
Solid poly-α-amino acid particles are obtained by preparing an oil-in-water emulsion from water and an organic solvent having a water solubility of 10 g/100 ml or less, and polymerizing an...
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5849822 |
Thermoplastic resin composition superior in transparency and antistatic property
A thermoplastic resin composition having transparency and antistatic properties, comprising 100 parts by weight of a thermoplastic resin (A) having a refractive index of 1.52 to 1.61 and a haze of...
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5834581 |
Process for making polyimide-polyamic ester copolymers
A process for making polyimide-polyamic ester copolymer composition comprising reacting at least one diamine, a pyromellitic diacid diester compound; at least one other tetracarboxylic diacid...
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5821284 |
Durable motor insulation
Provided is an insulation for rocket motors that uses two ingredients not previously combined in such insulation before. These ingredients are ammonium sulfate and antimony oxide, which when...
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5821319 |
Liquid crystal polyamide-imide copolymer
A sliding material and a heat resistant filament which primarily comprises a liquid crystal polyimide, a liquid crystal polyamide or a liquid crystal polyamide-imide copolymer having at least one...
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5807968 |
Polyamide compositions and related methods
A polyamide resin comprising the reaction product obtained by the reaction of an acid component comprised of a major concentration of a dimer acid and minor concentration of a monobasic acid and an...
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5789529 |
Polyamide resin composition and tubular molding comprising the same
A polyamide resin composition comprising: (A) 100 parts by weight of at least one member selected from a polyamide-11 resin and a polyamide-12 resin; optionally (B) from 3 to 30 parts by weight of...
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5780577 |
Polyamide resin composition
A polyamide resin composition and a biaxially stretched film comprising the polyamide resin composition. The polyamide resin composition comprises (1) 93 to 99.5% by weight of a polyamide resin and...
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5773558 |
Transparent, colorless, amorphous polyamides and molded articles
Colorless, amorphous polyamide, or blends or alloys thereof, and the molded articles with high alternate bending strengths are made available; they are preferably made up of unbranched aliphatic...
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5773556 |
Low-flammability polyamide molding materials
Low-flammability polyamide molding materials are obtained by admixing calcium or aluminum phosphinates. These salts confer improved flame protection on polyamides compared with other metal salts.
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5770676 |
Process for controlling morphology and improving thermal mechanical performance of high performance interpenetrating and semiinterpenetrating polymer networks
In the process of the present invention, a non-polar, aprotic solvent is removed from an oligomer/polymer solution by freeze-drying in order to produce IPNs and semi-IPNs. By thermally quenching...
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5770679 |
Polyamide resin compositions and production process
Polyamide resin compositions which are useful for molding parts with excellent malleability, thoughness, rigidity, and high heat deformation temperatures are prepared from 10 to 89% by weight of a...
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5760168 |
Imide oligomers endcapped with phenylethynl phthalic anhydrides and polymers therefrom
Controlled molecular weight phenylethynyl terminated imide oligomers (PETIs) have been prepared by the cyclodehydration of precursor phenylethynyl terminated amic acid oligomers. Amino terminated...
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5756571 |
Intumescent thermoplastic polyamide graft polymers
An intumescent fire retardant graft polyamide polymer aving resistance to dripping on exposure to fire, and the method of making such graft polyamide polymers, comprising from about 10-40 percent...
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5756648 |
Photosensitive polymide materials for electronic packaging applications
Photosensitive polyimides (Ps-PIM) materials have been synthesized that belong to three families of Ps-PIM materials. Through the use of precursors, various catalytic compositions with differing...
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5747555 |
Water-based publication gravure ink
A method of making a water-based publication gravure ink is provided wherein a polyamide resin or a mixture of the polyamide resin and a second resin is ground to produced a ground resin, and then...
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5747560 |
Melt process formation of polymer nanocomposite of exfoliated layered material
This invention relates to a process of forming a polymeric nanocomposite comprising a continuous polymeric phase formed from a melt processible polymer having amelt processing temperature equal to...
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5744573 |
Electrostatic dissipative nylons
A method for the anionic polymerization of a lactam which produces an nylon having a surface resistivity of between about 10 6 to about 10 12 Ω/.quadrature.. Miscible antistatic agents are mixed...
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5741601 |
Polyamide film and process for producing the same
A polyamide film having been drawn at a draw ratio of 2 or more in at least one direction, which comprises a polyamide resin composition comprising from 90 to 99.99% by weight of a polyamide and...
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5728799 |
Aromatic polyamide, optical anisotropic dope and articles and preparation for the same
The present invention is directed to an aromatic polyamide of formula (I), ##STR1## an optical anisotropic dope containing the aromatic polyamide and a process of making the optical anisotropic...
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5726278 |
Process for the manufacture of polyamide resin composition
A process for manufacturing polyamide molded articles having improved resistance to discoloration while also having good heat stability involving preparing masterbatch pellets of at least a...
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5723568 |
Polyamide solution composition and methods for producing fibrids and paper-like sheets using the same
A polyamide comprising a solution of (i) an aliphatic polyamide and/or an aliphatic aromatic poly amide dissolved in (ii) N-methyl-2-pyrrolidone and containing (iii) calcium chloride, the ratio...
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5719204 |
Pigmented inks with polymeric dispersants
The invention relates to polymeric dispersants used in formulating aqueous ink compositions, as well as inks containing those dispersants. The dispersants are graft copolymers comprising a...
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5714572 |
Polyimide resin composition
The present invention provides a polyimide resin composition comprising: (a) a polyamide resin comprising a repeating unit represented by the general formula (1): ##STR1## wherein X represents a...
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5714538 |
Polymeric dispersants for pigmented inks
The invention relates to polymeric dispersants used in formulating aqueous ink compositions, as well as inks containing those dispersants. The dispersants are graft copolymers comprising a...
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5714090 |
Solvent resistant non-formaldehyde thermoset fluorescent pigment
The present invention provides a novel, non-formaldehyde thermoset fluorescent pigment which is useful to color plastics, particularly flexible vinyl, which is solvent resistant, particularly to...
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5714526 |
Method of preparing resin/pigment compositions for printing inks
A method of preparing a pigment dispersion useful in the preparation of printing inks is provided. Said method comprises dispersing a pigment in an aqueous medium further comprised of a dispersing...
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5708128 |
Linear polyamic acid, linear polyimide and thermoset polyimide
Novel thermoset polyimide and composite materials comprising the thermoset polyimides and a fibrous reinforcement are prepared according to this invention. The thermoset polyimides are obtained by...
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5705540 |
Inorganic filler, manufacturing method thereof, and resin composition containing an inorganic filler
Disclosed is a resin composition excellent in mechanical and electrical properties. The composition contains an inorganic filler such as fused silica or silicon nitride having the surface covered...
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5703199 |
Process for the preparation of nitrogen-containing polymers
To prepare nitrogen-containing aromatic polymers, for example polyamides, polyimides and polybenzimidazoles, polyvalent aromatic carboxylic acids and aromatic diamines and/or aminocarboxylic acids...
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5696226 |
Resin composition and molded article thereof
A resin composition containing a hydrotalcite compound in an amount of 0.01 to 5 parts by weight based on 100 parts by weight of the thermoplastic resin, the hydrotalcite compound having fine...
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5688901 |
Partly aromatic copolyamide molding materials having high crystallinity
Partly aromatic semicrystalline thermoplastic polyamide molding compositions contain A) from 40 to 100% by weight of a copolyamide composed of a 1 ) from 30 to 44 mol % of units which are...
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5686513 |
Process for the production of stabilizer concentrate for polyamide
A process for the production of a polyamide stabilizer concentrate in which the concentrate consists of at least two interactive stabilizer components with defined particle sizes and, optionally,...
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5672677 |
Long open time polyamide compositions
A polyamide hot melt adhesive is provided. It comprises the polyamide condensation product of substantially equivalent quantities of (a) an acid component consisting essentially of one or more...
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5670608 |
Polyamide and polyamide composition
A polyamide (9-T polyamide) comprising (a) 60 to 100 mole of terephthalic acid and (b) a diamine component comprising 60 to 100 mole % of 1,9-nonanediamine, said polyamide having an intrinsic...
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5668246 |
Synthesis of high solids-content wet-strength resin
Disclosed is an improvement in a method of making a water-soluble epichlorohydrin resin involving reacting epichlorohydrin with a polyaminoamide. The improvement involves preparing the...
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5665151 |
Method for making article with and detecting water based inks containing near infrared fluorophores
The present invention provides inks which contain a near infrared fluorophoric compound incorporated into a water-dissipatible polyester backbone. The inks of the present invention are preferably...
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5665815 |
Polyamide compositions exhibiting improved rheology
Compositions including at least one polyamide obtained by polycondensation of meta-xylylenediamine and of a dicarboxylic acid, as well as at least one copolymer based on methyl methacrylate and on...
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5659009 |
Production of filler-containing thermoplastic molding compositions and molding compositions obtainable in this way
In a process for producing filler-containing thermoplastic molding compositions by mixing fillers with thermoplastics in the melt, a) the fillers are mixed in a mixing apparatus in the melt with...
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5650463 |
Carbon fiber-reinforced polimide resin composition
Moldable polyimide resin composition which has melt-flowability and excellent processability in addition to essential heat-resistant of polyimide and comprises an aromatic bisimide compound and...
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5650482 |
Adhesion promoters
An at least two-step process for the preparation of polyamide resins wherein, in the first step, polyvalent carboxylic acids, optionally together with monovalent carboxylic acids, are reacted with...
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5648405 |
Aqueous ink jet inks
Aqueous ink jet ink compositions comprising an aqueous carrier medium, a colorant, such as a dye or a pigment, and a polyampholyte containing at least one carboxylic acid group and at least one...
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5639819 |
Polyamide compositions
A mouldable reinforced polyamide composition comprising; (a) a polyamide consisting essentially of between about 0.5 and about 99.5 mol. % of aliphatic diamines having 4-12 carbon atoms and a...
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