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4242254 |
Glass reinforcements and fire retardant glass-resin composites therefrom
Filamentous glass in which the filaments are sized with non-burning or self-extinguishing polymeric compositions reinforce the physical properties of organic polymeric substances and impart a...
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4240935 |
Ketene dimer paper sizing compositions
Improved paper sizing compositions are composed of a ketene dimer, an anionic dispersing agent such as sodium lignin sulfonate, certain water-soluble, cationic resins and water. Exemplary of the...
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4238234 |
Printing inks containing a polyether amine fixing agent
Disclosed are aqueous printing inks comprising an anionic dyestuff, a pigment or mixtures thereof and a cationic fixing agent based on a water soluble, high molecular weight, cross-linked polyether...
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4238384 |
Method of incorporating additives in polymeric materials
Additives, such as stabilizers, antioxidants, anti-static agents etc., are intimately blended with an irradiation-responsive substance, such as an optical brightener, and incorporated in a...
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4234729 |
Phosphine oxide-substituted pyrimidines
Phosphine oxide of the formula selected from the group consisting of ##STR1## wherein X is H, alkylthio of 1-4 carbon atoms, or ##STR2## Y is H, alkyl of 1-4 carbon atoms, Cl, Br, or ##STR3## Z is...
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4229339 |
Process for the preparation of polymer dispersions
A dispersion of a condensation polymer in an organic liquid medium in which the polymer is insoluble is prepared by heating in the liquid medium one or more appropriate reactants one of which is...
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4221602 |
Size for forming glass fibers having a reduced tendency to give gumming deposits
A method and composition are provided for producing an improved sized glass fiber strand that has a reduced tendency to form gummy deposits on fabrication machinery under high relative humidity...
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4221692 |
Process and apparatus for the production of additive-containing synthetic linear polymers
A process for the production of synthetic linear polymers which contain atives is described, in which the polymer and the additives, both in the fluid state, are mixed, the resulting mixture is...
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4217145 |
Process for admixing polymer emulsions with water to produce highly viscous liquids
Highly viscous liquids are formed by intimately admixing water and polymer emulsions by charging the polymer emulsion and water through a restricting zone into a turbulent zone to promote...
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RE30352 |
Optically anisotropic aromatic polyamide dopes
Compositions or dopes comprising carbocyclic aromatic polyamides in suitable liquid media are prepared which are optically anisotropic (exhibit different light transmission properties in different...
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4209610 |
Partially fluorinated esters or amide/esters of benzene polycarboxylic acids, and dyeable pet and nylon fibers incorporating the same and process of making such fibers
Polycarboxybenzenes esterified with certain partially fluorinated alcohols and with hydroxyl-containing organic radicals such as 2-hydroxyethyl, glyceryl and chlorohydryl or bromohydryl, leaving no...
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4196118 |
Flame resistant wholly aromatic polyamide fibers
A wholly aromatic polyamide fiber which comprises a wholly aromatic polyamide and an organic phosphorus compound having one or more halogen atoms. The wholly aromatic polyamide has repeating units...
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4194921 |
Pigment compositions and process for dust free pigment beads
A process for the manufacture of substantially dust free meterable and readily dispersible beads of a pigment composition which comprises contacting with agitation a suspension of a finely divided...
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4193914 |
Phosphorus-containing propionates
The present invention relates to 2-chloroalkyl (2-chloroalkyloxy)hydrocarbylphosphinylpropionates and a process for the preparation thereof. The invention also includes combinations of the said...
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4194072 |
Flame retardant nylon compositions
Flame retardant nylon compositions having improved physical properties and excellent molding characteristics comprise a mixture of about 45 to about 70 weight percent of nylon 6 or nylon 66 or...
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4191684 |
Urea derivatives, their preparation, and their use as light stabilizers
The invention provides novel 4-carbamoyl derivatives of 1-oxa-3-oxo-4,8-diaza-spiro-[4,5]-decanes and their preparation from 1 oxa-3-oxo-4,8-diaza-spiro-[4,5]-decanes and isocyanates. The products...
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4187207 |
Flameproofed polyamide containing red phosphorous
Polyamides flameproofed with red phosphorous and including cadmium oxide as an additive to retard the formation of phosphine during heating are disclosed. The polyamides are particularly useful in...
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4181793 |
Poly(hydrazone-hydrazine)
Disclosed is a poly(hydrazone-hydrazide) prepared from difunctional acid chlorides and 4-(hydrazonomethyl)benzoic acid hydrazide. The poly(hydrazone-hydrazide) contains repeating units...
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4181646 |
Phosphorus-containing flame retardant compositions
The present invention relates to phosphorus-containing compositions which are polymeric esters having flame retardant properties and also a process for the production thereof, as well as the...
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4178419 |
Process and product
Aromatic polyamide foams having a density of 0.025 to 0.7 g./cm. 3 are prepared by heating N,N'-dialkyl aromatic polyamides having at least one β hydrogen atom on the alkyl groups, a plasticizer...
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4162931 |
Method employing polyamide thermoplastic adhesives
Novel thermoplastic adhesive components, prepared from inexpensive and readily available synthetic materials, having melting points between about 20° C. to about 180° C. and broad ranges of...
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4158649 |
Polymeric membranes which contain polyphenylquinoxalines and which are useful as battery separators
A polymeric membrane composed of a homogenous mixture of (1) a hydrophilic esin which is (a) partially acetylated cellulose in which from about 50 to less than 100 percent of the hydroxyl groups...
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4158634 |
Particles of thermoplastic polymer, and process of making the same
Finely comminuted particles of a normally solid thermoplastic organic polymer, which is particularly useful as a toner base for electrostatic reproduction utilizing pressure fusing on the toner, is...
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4155773 |
Process for producing pigmented resin particles
A process for producing pigmented resin particles which are readily dispersible in fluid ink systems is described. The process involves the steps of milling pigment and certain water-insoluble,...
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4154919 |
Linear and cross-linked polybenzimidazoles
A polybenzimidazole having a polymer chain with the following repeating unit: ##STR1## R 2 is a divalent carbon ring with the linkage to an adjacent repeating unit through adjacent carbon atoms of...
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4153784 |
Nylon copolymer from piperazine, aliphatic diamine and mixture of aliphatic diacids
Nylon copolymer containing piperazine and a process for finishing leather and imitation leather, having a surface of polyurethane or plasticized PVC, by applying a solution of this nylon copolymer...
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4152314 |
Process for converting leathery phosphazene polymer to elastomeric phosphazene polymer
Leathery aryloxy polyphosphazenes are converted to useful elastomers by the presence of relatively low molecular weight oils in said polymers. The oils may be present as a result of the manner in...
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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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4146530 |
Dicyclophosphites and organic polymers stabilized with said phosphites and their use as stabilizers
The present invention is related to novel phosphites, their use as stabilizers for organic polymers, furthermore to stabilizer compositions containing these novel phosphites as well as the organic...
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4142031 |
Polycaprolactam composition having improved melt spinnability and method for improving melt spinnability of polycaprolactam
When magnesium oxide in which the half-width of the X-ray diffraction profile at (200) as determined according to a specific method is at least 0.3 is incorporated in an amount of 0.05 to 2.0% by...
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4141880 |
Flame retarded nylon composition
Disclosed is a novel, flame retarded, non-blooming nylon composition with excellent thermal stability. This composition is comprised of from about 5 to about 35 percent (by weight) of a...
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4138527 |
Sheet or web type materials with a markable adhesive-repellent coating, and a process for their manufacture
Self-adhesive webs or sheets are disclosed which are easily marked by ordinary printing means. They are prepared by coating a flexible substrate with a reactive mixture of a polyurethane, an...
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4137212 |
Flameproofed nylon molding compositions
A flameproofed nylon molding composition which can be processed by thermoplastic methods and which contains, as the flameproofing agent, from 5 to 30% by weight of brominated styrene oligomers and...
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4133803 |
Polyoxypropylene polyamine polyamide thermoplastic adhesives
A novel thermoplastic adhesive having a melting point between about 20° C to about 180° C. is disclosed which is comprised of a resinous polyamide reaction product of a polyoxypropylene polyamine...
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4130517 |
Multiphase block and graft copolymers comprising a hydrophilic continuous phase and hydrophobic domains
This invention relates to thermoplastic, multiphase copolymers selected from the group consisting of copolymers represented by graft copolymers having the general formula ##STR1## AND BLOCK...
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4127562 |
Method of preparing coatings
A method of producing coatings on the basis of two-component systems composed of 1,2-epoxy compounds having at least one 1,2-epoxy group in the molecule, plus cyclic amidines and the conventional...
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4127501 |
Polychromophoric ultraviolet stabilizers and their use in organic compositions
The invention relates to polychromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions...
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4123424 |
Polymeric piperazinamides and membranes for reverse osmosis made therefrom
Polymeric piperazinamides suitable for use in reverse osmosis membranes. These polymeric piperazineamides consist essentially of the repeating unit ##STR1## wherein x is zero or a whole number from...
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4120839 |
Oligomeric amino-containing aminolysis products of polymethacrylates or polyacrylates, and epoxy resin coating compositions containing such aminolysis products as curing agents
Novel, versatile aminolysis products are obtained by aminolyzing, with a polyamine of aliphatic nature, an oligomeric homopolymer of an alkyl methacrylate in which the alkyl group contains from 1...
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4119789 |
Flame retardant compositions
The flame resistance of synthetic fibers and solid polymers are improved by treatment with a halogen containing amide having the formula ##STR1## wherein R is lower alkoxy; lower alkoxy carbonyl;...
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4118364 |
Reinforced polyhexamethylene isophthalamide
Reinforced amorphous polyamides of isophthalic acid and hexamethylene diamine and articles thereof.
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4112016 |
Polyamide fiber
This invention relates to fibers, filaments, yarns and fabrics of selected polyamides wherein the fibers contain the reaction product of absorbed reactants comprising a...
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4107135 |
Decorative polymeric article containing flock fibers
A decorative polymeric article and a composition for its preparation are provided. The pleasing aesthetics of the article are realized by the combination of fillers such as alumina trihydrate and...
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4105621 |
Thermoplastic polyamide composition
A polyamide composition comprising 30 to 74.95% of a normally flammable polyamide, from 15 to 55% of a reinforcing agent, preferably glass fibre, from 5 to 30% of a halogenated flame retardant...
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4101487 |
Coating medium
A heat curable coating medium for use in the formation of a cured, highly cross-linked, polymeric coating on a substrate. The coating medium comprises an aromatic diamide diacid diamine formed as...
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4093588 |
Hindered phenolic cyclic phosphonates and stabilized compositions
The compounds are hindered phenolic mono- and bicyclic phosphonate compounds having the formula ##STR1## wherein R 1 is alkyl, R 2 is tert-alkyl, R 3 and R 4 are independently hydrogen or...
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4085080 |
Nylon composition containing non-polar ester plasticizer
A composition comprising a nylon resin, an additive insoluble in nylon and a relatively non-polar ester plasticizer selected from the group consisting of an adipate or sebacate with a C 4 to C 12 ...
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4085283 |
Phosphonate-isocyanurates
Flame retarding compounds are disclosed which are of the formula ##STR1## wherein X is a phosphonate derivative.
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RE29595 |
Well cementing composition having improved flow properties containing a polyamido-sulfonic additive
Aqueous hydraulic cement compositions containing polyamido-sulfonic compounds as flow-property-improving and turbulence-inducing additives and their use in cementing wells is disclosed.
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4080349 |
Glass-fiber-reinforced thermoplastic molding compositions showing improved flowability and toughness
Glass-fiber-reinforced thermoplastic molding compositions showing improved flowability and toughness and containing from 0.1 to 2% by weight, based on the total mixture, of a low molecular weight...
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