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4689364 |
Process for preparing polyamide based, titanium dioxide pigmented pulverulent coating compositions having at least ten aliphatically bound carbon atoms per carbonamide group
An improved process for preparing pulverulent coating compositions pigmented with titanium dioxide and based on polyamides having at least ten aliphatically bound carbon atoms per carbonamide group...
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4684693 |
Thermosettable polymer or prepolymer prepared from heterocyclic materials containing a nitrogen atom and carboxylic acid mono- or dianhydride with N,N'-bis-imide
Thermosettable prepolymers are prepared by reacting (A) a heterocyclic material containing one or more rings and one nitrogen atom or a mixture of such materials wherein at least one of such...
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4683262 |
Non-dimer acidic polyamide from medium chain diacid having improved water solubility useful as flexographic/gravure ink binder
Polyamide resins useful as binders in flexographic/gravure inks are provided which are essentially free of polyeric fat acids. These polyamide resins exhibit improved water solubility, yet still...
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4647616 |
Thermosettable polymer or prepolymer prepared from herterocycle material containing a nitrogen atom and carboxylic acid mono- or dianhydride
Thermosettable prepolymers are prepared by reacting (A) a heterocyclic material containing one or more rings and one nitrogen atom or a mixture of such materials wherein at least one of such...
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4642330 |
Dispersant salts
Dispersant salt compositions are made by reacting phosphorus-free carboxylic solubilizers with sulfonic acid-free organic acids or mineral acids. The carboxylic solubilizer can be made by the...
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4640948 |
Benzothiazole-polyamide composition
This invention provides 2-aminobenzothiazole-6-carbonyl chloride hydrochloride, which can be condensed under polymerization conditions to form a novel benzothiazole-polyamide polymer consisting of...
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4624679 |
Compositions containing antimicorbial agents in combination with stabilizers
Composition of an antimicrobial agent and an antioxidant having improved antimicrobial activity compared to the antimicrobial agent alone. The preferred environment of the invention is a...
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4617342 |
Crystalline copolyamide from terephthalic acid, isophthalic acid and C.sub. 6
A crystalline polyamide which has improved tensile strength and which has a heat deflection temperature in excess of 240° C. when filled is formed from dicarboxylic acid compounds comprising...
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4607095 |
Nonlinear optical organic substrate
In one embodiment this invention provides a nonlinear optical substrate which comprises a transparent film of an external field-induced noncentrosymmetric macroscopic orientation of...
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4606853 |
Fire retardant polyamide compositions
A fire retardant polyamide composition comprising at least 35% by weight of polyamide having a molecular weight of at least 3000, at least 3.5% but preferably not more than 10% by weight of the...
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4607073 |
Molding polyamide composition
Disclosed is a molding reinforced polyamide composition comprising [A] a polyamide selected from a polyamide composed of (a) aromatic dicarboxylic acid component units comprising 60 to 77 mole % of...
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4600743 |
Antistatic fiber containing polyoxyalkylene glycol
An antistatic fiber obtained by melt spinning of a fiber-forming thermoplastic polymer containing at least one of polyoxyalkylene glycol and its derivatives in an amount of not less than 0.5% by...
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4599387 |
Tetraalkyl titanate modified nylon magnet wire insulation coating
A magnet wire enamel having improved runnability and insulating properties is described comprising nylon containig 0.5% to 3.5% by weight tetraalkyl titanate. The nylon can be a sole coat,...
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4598143 |
Process for the preparation of aromatic polyamide in the presence of SiCl.sub.4
The present invention relates to a process for the preparation of aromatic polyamides mixed with SiO 2 , which is characterized in that terephthalic (isophthalic) acid is subjected to...
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4595708 |
Reverse osmosis membrane, casting solution, and processes for making same
A casting solution of polyaramide in N,N-dimethylacetamide containing about 10 to 60% by wt. MgCl 2 , based on polyaramide, and a process for making such casting solution, are provided. An...
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4588784 |
Aromatic titanate modified nylon magnet wire insulation coating
A magnet wire enamel having improved runnability and insulating properties is described comprising nylon containing a titanate selected from the group consisting of (RO) 4 Ti, dimers, trimers, and...
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4566990 |
Synergistic effect of metal flake and metal or metal coated fiber on EMI shielding effectiveness of thermoplastics
Conductive thermoplastic having high EMI shielding effectiveness comprise a thermoplastic condensation polymer and incorporated therein a synergistic combination of metal flake and conductive metal...
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4564650 |
Flame retardant amine terminated polyamide composition
The present invention is a flame retardant composition comprising from 5 to 20 weight percent of a homopolymer of a monomer having the formula: ##STR1## wherein n=0 or 1, X is bromine or chlorine...
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4562221 |
Polyamide resin composition excellent in plate adhesion
A polyamide resin composition excellent in plate adhesion which comprises 35% to 90% by weight of a polyamide resin, 5% to 60% by weight of an inorganic fiber and 5% to 50% by weight of wollastonite.
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4555439 |
Tough thermoplastic resin sheet-like material
According to the present invention, rolled sheet-like materials having superior mechanical properties, in particular toughness and high-impact properties, as well as superior heat resistance and...
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4543382 |
Plastic magnets impregnated with a dye-coated magnet alloy powder
The invention provides a very simple but effective means for preventing surface oxidation of fine metal powders by coating the metal powder with an organic dye. This method of surface-oxidation...
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4543378 |
Polyamide composition
A polyamide composition having an enhanced adhesion to coatings, which comprises a polyamide with a ratio of the terminal amino group concentration to the terminal carboxyl group concentration of...
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4540737 |
Method for the formation of composite articles comprised of thermotropic liquid crystalline polymers and articles produced thereby
A method for the production of composite articles by pultrusion is provided wherein the articles comprise thermotropic liquid crystalline polymers and reinforcing fibers. The liquid crystalline...
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4528303 |
Polymer/filler molding compositions
Molding compositions for the fabrication of shaped articles having enhanced mechanical properties are comprised of (i) a polymeric matrix, (ii) an inorganic reinforcing filler material therefor,...
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4528304 |
Polyamide resin composition
A polyamide resin composition which comprises 20 to 80 wt % of polyamide resin and 80 to 20 wt % of inorganic fibers, 85 to 15 wt % of said inorganic fiber being glass fiber and remaining 15 to 85...
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4528316 |
Creping adhesives containing polyvinyl alcohol and cationic polyamide resins
A creping adhesive comprising an aqueous admixture of polyvinyl alcohol and a water-soluble, thermosetting, cationic polyamide resin provides increased adhesion in the manufacture of creped wadding.
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4526838 |
Polyamino-bis-imide resin
A curable polyamino-bis-imide resin, obtained by the thermal reaction of: (A) a bis-imide represented by the general formula I: ##STR1## wherein R 1 stands for a divalent organic group having a...
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4525495 |
Mineral filled composites
The present invention is directed to mineral filled α-amino acid polymer composite materials. The composite materials are prepared by the in situ polymerization of an α-amino acid...
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4525513 |
Flame retardant polyamide composition
The present invention is a flame retardant composition comprising from 5 to 20 weight percent of a homopolymer of a monomer having the formula: ##STR1## wherein n=0 or 1, X is bromine or chlorine...
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4524191 |
Polyester composition and production thereof
A polyester composition for molding having improved molding properties is disclosed, comprising 100 parts by weight of a polyester comprising mainly polyethylene terephthalate and 0.05 to 10 parts...
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4520159 |
Process for producing polyaminopolyamides containing halohydrin functionality
Disclosed is a novel process for producing water-soluble, cationic resins containing halohydrin functionality from basic polyaminopolyamides containing secondary amine functionality without the use...
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4518728 |
Carbon black filled nylons modified for improved toughness
A molding composition comprising: (1) a polyamide resin; (2) a maximum of 10 percent by weight of the composition of carbon black; and (3) a maximum of less than about 20 percent by weight of the...
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4508868 |
Polymeric fat acid polyamide resins for use in flexographic ink vehicles having reduced solvent emissions
Polymeric fat acid polyamides are disclosed useful in the flexographic ink industry, to provide products which will comply with environmental protection standards. The improvement lies in the use...
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4501844 |
Polyamides with talc as crystallization promoter
Disclosed are injection moldable, rapidly crystallization compositions comprising (A) a linear polyamide selected from the series poly(4,4'-methylenediphenylene azelamide to dodecanediamide); and...
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4497931 |
Antioxidants and lithium ion
Antioxidants are enhanced in their activity by the presence of soluble lithium ion.
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4497728 |
Conductive pyrolytic product and composition using same
A conductive pyrolytic product obtained by thermally treating specific types of heat-resistant polymers including polyamide-imide, an aromatic polymer having a heterocyclic ring of a specific type...
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4495328 |
Crystalline copolyamides from terephthalic acid and hexamethylenediamine and trimethylhexamethylenediamine
Crystalline copolyamides from terephthalic acid and mixtures of hexamethylenediamine and trimethylhexamethylenediamine and filled molding compositions prepared therefrom are disclosed. The...
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4490430 |
Self-supporting thermal ink
A self-supporting ink lamination is taught particularly useful for a reinking, resistive ribbon printer. In the printer, the ink is typically wound as a spool with an intermediate, separating film....
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4490324 |
Nylon film with improved slip characteristics and process therefor
A process is disclosed for the manufacture of nylon packaging film having improved slip characteristics. In the process a homogeneous mixture is formed from a film-forming nylon resin and between...
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4481354 |
Process and composition for lowering the reversible phase change temperature of nylon compositions
A process for modifying certain polyamides by use of a novel combination of an organic sulfone and a lithium halide as a processing aid to yield a modified polymer having thermal stability and a...
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4477620 |
Polyimide film
A shaped polyimide article is disclosed having finely divided barium sulfate as an additive which lowers the limiting oxygen index in combustion and substantially eliminates ash as a combustion...
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4476280 |
Polyamide compositions from mixtures of trimethylhexamethylene diamine, hexamethylene diamine and diacids
Novel crystalline copolymers having heat deflection temperatures in excess of 305° C. and prepared from hexamethylene diamine, trimethylhexamethylene diamine and either mixtures of terephthalic...
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4474942 |
Cross-linked polyesteramide from bis(2-oxazoline)
A new cross-linked polyester amide having structure in which the ester amide chain of the formula below: ##STR1## (wherein R and R' each are a bivalent hydrocarbon radical; n is a positive integer)...
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4471081 |
Continuous low moisture catalytic method for polymerization of caprolactam
This invention is an improvement to the continuous method to polymerize caprolactam at temperatures over 220° but below 280° C. in the presence of free water, a catalyst capable of generating...
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4471088 |
Copolyamide from 1,4-cyclohexane dicarboxylic acid and diamine mixture
A copolyamide comprised of undecamethylenehexahydroterephthalamide units and hexamethylenehexahydroterephthalamide units having a trans isomer ratio of hexahydroterephthalic acid residues of 57 to...
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4467055 |
Filled polymeric compositions comprising novel polymer/filler interfacing additive
Polymeric, advantageously elastomeric, e.g., natural or synthetic rubber, matrices including a reinforcing amount of a filler therefor, e.g., inorganic particulates, further comprise, as an...
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4448926 |
Viscosification of hydrocarbon fluids
The present invention relates to the gelation or viscosification of hydrocarbon fluids, wherein a polymer having the structure xB-[AB] n -yA wherein the A block is hydrophobic and the B block is...
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4448921 |
Rock wool composite material
A rock wool composite material obtained by mixing a fine rock wool having a diameter of 1 to 10μ and a length of 70 to 500μ and containing substantially no shots with a pulp-like substance of a...
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4448925 |
Injection moldable polymers containing phthalic anhydride
Novel copolymers and molding compositions are prepared from acyl halide derivatives of dicarboxylic acids, acyl halide derivatives of tricarboxylic aromatic anhydrides and aromatic diamines and...
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4442254 |
Polyamide resin composition
A polyamide resin composition comprising 20 to 90% by weight of a polyamide resin formed by the reaction of a xylylenediamine and an aliphatic straight-chain dicarboxylic acid having 6 to 12 carbon...
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