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4442057 |
Melt spinning process
A process of melt spinning a fibre-forming polymer particularly polyethylene terephthalate or poly-hexamethylene adipamide at a minimum wind up speed of 1000 meters per minute in which there is...
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4439578 |
Use of liquid crystal polymer particulates having a high aspect ratio in polymeric molding resins to suppress melt dripping
Thermoplastic molding compositions are provided which have enhanced resistance to melt dripping during burning. Such molding compositions are modified by the inclusion of particulates of liquid...
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4438233 |
Fast crystallizing polyalkyleneterephthalate resin compositions
The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.05-4 percent by weight of lithium bromide, chloride or iodide in the form of a selected complex of the...
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4438236 |
Compositions of melt-processable polymers having improved processability
A melt-processable composition comprising at least one polymer capable of forming an anisotropic melt and at least one other melt-processable polymer characterized in that the temperature range...
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4433117 |
Copolyesteramide and production of the same
A copolymer having high strength and high elastic modulus is produced by copolymerizing (a) a polyamide oligomer prepared from a piperazine compound and an aromatic dicarboxylic acid and (b) a...
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4431758 |
Heat resistant resin composition comprising reaction product of polyamideimide resin, alcohol and acid component.
A heat resistant resin produced by reacting (A) a polyamideimide resin with (B) an alcohol component and (C) an acid component with heating is soluble in a cresol type solvent and gives coatings...
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4430484 |
Polyester-carbonate resin blends
Novel thermoplastic compositions are disclosed which comprise blends of: (a) a polyester-carbonate resin; and (b) at least one polymer selected from the group consisting of (i) polyamides,...
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4418164 |
Aramid fiber coated with polyfunctional aziridine
Coating of aramid filaments with certain polyfunctional aziridines increases interlaminar shear strength of unsaturated polyester matrix composites.
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4417031 |
Process for preparing graft and block copolymers
A process for preparing block, and/or graft copolymeric compositions by forming an intimate mixture of two or more polymers, at least one of which includes one or more amino junctions and at least...
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4409372 |
Paint brush bristles
Improved paint brush bristles and provided from a blend of nylon 6/6 or nylon 6/12, together with between 4-15%, depending upon the shape and size of the filament, of a co-polyester derived from...
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4391956 |
Impact modified nylon 6
An impact modified nylon comprised of 50 to 95 weight percent nylon 6 and 5 to 50 weight percent polyester elastomer.
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4391943 |
UV Stabilized nylon 6
Nylon 6 molding and extrusion grade resins are stabilized against UV degradation by the addition of small amounts of carbon black. The elongation and impact strength of the nylon are preserved, if...
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4381372 |
Polymers derived from 4-bis(carbalkoxyethyl)-phosphinoxy-2,2,6,6-tetramethylpiperidine
Polymers and oligomers of the formula ##STR1## are useful as ultraviolet light stabilizers for various polymers, especially polyolefins.
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4377546 |
Process for producing aromatic heterocyclic polymer alloys
A novel method is taught for preparing polymeric alloys composed of a mixture of an aromatic heterocyclic rod-like reinforcing polymer and an aromatic heterocyclic coil-like amorphous mixture with...
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4376178 |
Process for the production of polyol-alkali metal silicate emulsion
A stable polyol-alkali metal silicate emulsion is produced by mixing an aqueous solution of an alkali metal silicate or alkali metal metasilicate pentahydrate, a liquid polyol and a small amount of...
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4373059 |
Pre-condensed, thermosetting aqueous varnish coating agent and its utilization for cathodic deposition upon electrically conducting surfaces
The invention concerns a pre-condensed, thermosetting aqueous lacquer coating material containing a pre-condensation product that becomes water-dilutable after protonization with acids and has a...
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4362847 |
Heat-curable thermosetting resin binder compositions comprising a non-acidic resinous compound, a non-acidic polyester cross-linking agent, and a transesterification catalyst
The present invention is directed to thermosetting binder compositions for coating, comprising: (I) (1) A non-acidic resinous compound, saturated, molecular weight at least 900, alcoholic...
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4361623 |
Flame retardant antistatic additives and antistatic fibers
A flame-retardant, antistatic synthetic polymeric fiber which is the product of the process of coating on said fiber about 1 percent to about 12 percent by weight of a polymer composition which is...
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4361695 |
Polyesters of N,N-di-alkanol-amines with di-(hydroxy-alkyl-benzyl) malonic acids and use thereof as stabilizers for polymers
New polyesters of N,N-di-alkanol-amines with di-(hydroxy-alkyl-benzyl) malonic acids are disclosed. The new polyesters are useful for stabilizing thermoplastic polymers, in particular polyolefins,...
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4352852 |
Reinforced plastic matrix of thermosetting resin embedded with acrylonitrile polymer fiber
Use of a high tenacity acrylonitrile polymer fiber in a reinforced plastic composition based on a thermosetting resin produces high tensile impact at low fiber usage.
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4346214 |
Process for the production of polyester amide silicate resinous products
Polyester amide silicate resinous products are produced by heating a mixture of an oxidated silicon compound, polyhydroxy compound, a polycarboxylic acid and/or polycarboxylic acid anhydride and a...
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4346024 |
Heat-stable polyphase polyamide/polyesteramide compositions
Heat-stable polyphase polyamido compositions having improved mechanical properties are comprised of (i) from 55 to 99% by weight of a nylon polyamide resin matrix, said polyamide resin having a...
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4340697 |
Heat resistant molding resin composition
The present invention relates to a heat resistant molding resin composition comprising 60-99.9% by weight of an aromatic polyamideimide resin, and 40-0.1% by weight of a thermoplastic resin which...
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4336685 |
Synthetic polymer films and fibers rendered permanently anti-static
Anti-static polymeric films, fibers and textile yarn produced by process comprising admixing a branched chain, sulfur-containing polyester with a synthetic film- or fiber-forming polymer, extruding...
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4331776 |
Polyamide masterbatches
Masterbatches useful for lightweight polyamide molding or extrusion comprise polyamide, a pore-forming agent and a fusible binder that is compatible with the polyamide. Admixture of the masterbatch...
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4328331 |
Novel polyester-amides
Segmented thermoplastic polyester-amides are described which are prepared by reacting a polymeric diol (molecular weight in the range of 400 to 4000) with a carboxylic acid terminated prepolymer...
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4323657 |
Dispersions of high melting polyesters in polyhydroxyl compounds, a process for their preparation and their use in the production of polyurethanes
Novel, finely divided, redispersible dispersions of high melting polyesters in low melting polyhydroxyl compounds are disclosed. Disclosed also is a process for their preparation and their use as...
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4319006 |
Polyamideimide-esterimide heat resistant resin and electric insulating varnish
A polyamideimide-esterimide heat resistant resin is made by connecting aromatic polyamideimide components having amide groups and imide groups in the main chain to polyesterimide components having...
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4317894 |
Low temperature cure coating compositions
Coating compositions consist essentially of (a) ethylenically unsaturated monomers, (b) polyol-containing curable resins, (c) resins having ethylenic unsaturation and (d) solvent. The compositions...
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4316835 |
Polyester resin compositions
This invention involves a curable liquid mixture comprising (a) a polyester of the following formula: ##STR1## wherein n has an average value between about 1.5 and about 2, m is 2-n, R is the...
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4309518 |
Molding compositions containing high-molecular weight linear polyester
Molding compositions comprising A. 60-97% by weight, based on the weight of the total composition, of a poly(alkylene terephthalate) and B. 3-40% by weight, based on the weight of the total...
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4296218 |
Heat-curable and solvent-soluble ester group-containing polymer compositions and process for their preparation
A heat-curable and solvent-soluble ester group-containing polymer composition is prepared by the steps of: (1) either (i) reacting a highly polymerized linear aromatic polyester with a diaryl...
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4258154 |
Aromatic polyester
A resin composition consisting essentially of (A) an aromatic polyester-polycarboxylic anhydride and (B) a polyamide. An article molded from the resin composition exhibits high heat resistance,...
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4254242 |
Fire-retardant resin composition
A fire-retardant resin composition comprising (A) an aromatic copolyester derived from (1) a mixture of terephthalic acid and isophthalic acid and/or the functional derivatives thereof and (2) a...
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4252920 |
Method for preparing ether-ester-amide block polymers for among other moulding, extruding or spinning uses
Process for preparing ether-ester-amide block polymers. It consists in the reaction, in the molten state of a dicarboxylic polyamide having COOH end groups with a polyoxyalkylene glycol having...
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4250279 |
Polyarylate blends with polyetherimides
Described herein are molding compositions of blends of a polyarylate derived from a dihydric phenol and an aromatic dicarboxylic acid, and a polyetherimide. These blends can additionally contain...
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4243777 |
Polypyrrolidone alloys
Intimate alloys of polypyrrolidone and hydrophobic linear polyesters and polyamides and processes for preparing such alloys. The intimate alloys comprise a major portion of polypyrrolidone and a...
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4229340 |
Glass fiber-reinforced polyethylene terephthalate/polyamide blends
An improved thermoplastic nylon molding resin comprising intimately mixed nylon molding resin and glass reinforcing agents in the presence of polyethylene terephthalate resin.
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4221703 |
Stabilization of polymers containing poly(alkylene oxide) units
A stabilized copolyester composition consisting essentially of (a) a multiplicity of recurring long chain units and short chain ester units joined head-to-tail through ester linkages, said long...
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4217389 |
Curable mixture of water soluble polyester and polyimide precursor, process of coating and products
An aqueous coating composition containing in admixture a water soluble polyester, a water soluble orthoamic acid diamine and minor amounts of other water soluble polymeric coating materials. The...
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4207407 |
Aromatic heterocyclic polymer alloys and products produced therefrom
Rod-like aromatic heterocyclic polymers are used as reinforcement in coil-like heterocyclic polymer matrices to provide composites at the molecular level that are analogous to chopped fiber...
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4206100 |
Resin composition
A resin composition consisting essentially of (A) an aromatic copolyester derived from (1) a mixture of terephthalic acid and isophthalic acid and/or the functional derivatives thereof and (2) a...
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4198494 |
Intimate fiber blend of poly(m-phenylene isophthalamide) and poly(p-phenylene terephthalamide)
This invention relates to fiber blends, yarns and fabrics for use in lightweight garments offering protection against brief exposure to extreme thermal fluxes, the fiber blend comprising a...
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T993006 |
Adhesive composition
Composition especially useful as an interlining adhesive comprising a physical blend of a copolyester powder and a polyamide powder. The polyester is derived from terephthalic acid and...
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4192826 |
Thermosetting, electrostatically sprayable compositions containing blocked acid catalyst
Thermosetting liquid coating compositions, based on polymer capable of being crosslinked with nitrogen resin crosslinkers, nitrogen resin crosslinker, and blocked acid catalyst prepared from...
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4174358 |
Tough thermoplastic nylon compositions
Toughened multi-phase thermoplastic composition consisting essentially of one phase containing 60 to 99 percent by weight of a polyamide matrix resin of number average molecular weight of at least...
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4171294 |
Stoving lacquers containing reactive diluents
An alkyd resin stoving lacquer with decreased loss of reactive diluent yields outstandingly hard coatings if a reactive diluent mixture comprising a lactam and a hydroxyl compound is used.
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4165303 |
Polymer compositions containing poly (alkylene ether) esters of polybasic acids
Polyamides and polyesters having greatly improved resistance to static electricity buildup are obtained by the incorporation of about 0.1 to 20 weight percent poly(alkylene ether) esters of...
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4151221 |
Poly-2-pyrrolidone composition having improved stability and method of extruding
Poly-2-pyrrolidone compositions having improved resistance to thermal reversion to pyrrolidone via the incorporation of certain polyesters and methods of melt extruding such compositions.
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4151335 |
Unsaturated polyester resin capable of entrapping an inert gas to form a structural foam
Unsaturated polyester resins having an acidity number of 5-90 mg. KOH/g. a molecular weight of 500-5000 and which are capable of entrapping air or other inert gases so as to form structural foams...
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