Matches 151 - 200 out of 312 < 1 2 3 4 5 6 7 >
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4283504 Crosslinkable polymers containing acrylamidophenol units  
Copolymers containing an acrylamidophenol as a crosslinking site and the corresponding crosslinked polymers are disclosed. The acrylamidophenol unit can be copolymerized with a wide variety of...
4277577 Thermoplastic molding compositions on the basis of oxymethylene polymers  
The invention provides a molding composition of a mixture of an oxymethylene polymer, an elastomer having a softening temperature of below the crystallite melting point of the oxymethylene polymer...
4265835 Conversion of carboxamide to N-substituted derivative thereof using carbon magnetic analysis  
In a process for preparing a N-substituted derivative of a carboxamide, the conversion of carboxamide to the derivative is determined by carbon-13 nuclear magnetic resonance analysis (CMR) wherein...
4259459 Treatment of latex emulsifiers  
An improved polymerization emulsifier for use in the manufacture of synthetic rubber is prepared wherein a mixture of tall oil fatty acids and resin acids as found in crude or distilled tall oil is...
4250661 Agricultural covering multilayer film or sheet structure and method for thermal insulation  
A covering multilayer film or sheet structure for agricultural application, which consists essentially of: (1) a film or sheet of a resin composition comprising (A) 100 parts by weight of a...
4237243 Use of cross-linked polymers to increase the viscosity in cosmetic, pharmaceutical and technical compositions  
Use of cross-linked polymers for increasing the viscosity in cosmetic, pharmaceutical and technical compositions, wherein the polymer chains have the following composition: k - p molar % of...
4237249 Process for the preparation of crosslinked copolymers, the process products obtained, and their use in textile printing  
A crosslinked copolymer useful in textile printing is prepared by (a) polymerizing in the presence of a radical initiator in a water-miscible alkanol k mole percent acrylamide with 0 to 45 mole...
4228218 Polymer composite material  
A polymer composite material which comprises a first rigid polymeric material composed substantially of rigid molecular chains having an average chain length of 50 A or more, and a second polymeric...
4221700 Stabilized polymer composition  
A stabilized synthetic polymer composition comprising (1) 100 parts by weight of a synthetic polymer, (2) 0.001 to 5 parts by weight of a poly(alkylated alkenylphenol) composed substantially...
4193906 Compositions for solid writing materials and writing implements  
A composition for a solid writing material and a writing implement, the composition comprising: (i) at least one of dibenzylidene sorbitol and derivatives thereof and tribenzylidene sorbitol and...
4180629 Polymers containing a reactive aromatic system based on p-phenylenediamine derivatives  
Polymers containing a reactive aromatic system in the side chain which consist of structural units of the general formula IV: ##STR1## where R 1 is hydrogen or CH 3 , R 2 is alkyl containing 1...
4163764 Coupled block copolymers with improved tack for adhesives  
A monovinyl arene, such as styrene, is polymerized with a monofunctional lithium initiator, followed by addition of a conjugated diene, such as butadiene, with additional monofunctional lithium...
4128489 Piezo-electric material  
Piezo-electric material comprising composite of acetal resin which is blended with polymer having high relative permittivity and piezo-electric ceramics powder, the composite being molded and...
4108945 Star polymers and process for the preparation thereof  
Disclosed is a series of star polymer products having at least three polymeric arms which radiate from a nucleus having at least two molecules of a linking compound. The polymeric arms may be...
4105518 Ultraviolet curing of electrocoating compositions  
An electrocoating composition useful for electrocoating a paint from an aqueous solution onto a cathode conductive substrate can be cured with ultraviolet energy. The electrocoating composition...
4100137 Crosslinking of hydroxyl-containing polymers with polyaldehyde compounds  
A process, and the composition therefrom, is provided for crosslinking of polymers containing hydroxy or mercaptan groups by reaction with polyaldehyde compounds, the crosslinks being thermally...
4098843 Stabilized polyoxymethylene molding compositions  
A stabilized molding composition comprising an admixture of a minor portion of a dispersion of polyamide in a carrier resin and a major portion of polyoxymethylene, wherein the melting or glass...
4091198 Suppressing gel in the continuous solution polymerization of a conjugated diene with a monovinyl aromatic compound  
Gel formation in the first reactor means of a multireactor process is suppressed by the employment of a silicon halide in the first reactor means in an organolithium-initiated,...
4083892 High solids coating compositions containing tetrahydric adduct  
Essentially solvent-free resinous coating compositions are provided which are sufficiently fluid to permit effective application, and which cure on baking at low temperature to provide hard stain-...
4082730 Glyoxal modified poly (beta-alanine) strengthening resins for use in paper  
Novel resins, useful as strengthening resins for imparting dry and temporary wet strength to paper, are disclosed. The resins are prepared by reacting branched water-soluble poly(β-alanine) with...
4080356 Multicomponent polyacetal-block copolymer-polymer blends  
A multicomponent polymer blend composition is prepared by intimately mixing a polyacetal, a selectively hydrogenated monoalkenyl arene-diene block copolymer, and at least one dissimilar engineering...
4079027 Quaternary modified acrylamide polymers  
A method for the preparation of quaternary modified acrylamide polymers is disclosed. Applicable to both solutions of acrylamide polymer and to water-in-oil emulsions of finely divided acrylamide...
4079100 Acetal resin/block copolymer blend  
Polymeric blends having an unobviously high structural integrity and an improved balance of properties are prepared by intimately mixing certain selectively hydrogenated block copolymers with...
4079044 Glyoxal modified poly(β-alanine) strengthening resins for use in paper  
Novel resins, useful as strengthening resins for imparting dry and temporary wet strength to paper, are disclosed. The resins are prepared by reacting branched water-soluble poly(β-alanine) with...
4052348 Molding compositions  
Improved molding compositions especially adapted for fabrication into packaging materials, which compositions comprise an intimate blend of a nitrile polymer and a formaldehyde compound.
4051086 Absorption rate of absorbent polymers by treating with glyoxal  
Water-absorbent crosslinked polymers are improved in their wicking capacity by treatment of their surface with glyoxal. The polymer can be a polysaccharide--acrylamide graft copolymer or a polymer...
4048865 Transmission belts  
A toothed power transmission belt comprising a body, transversely extending teeth positioned along at least one face of said body, and an inextensible tensile member embedded in said body, the...
4044195 Organolithium/alkadienol adducts as polymerization initiators  
Adducts of hydrocarbon lithium compounds and alkadienols such as 2,4-pentadien-1-o1 are employed in the anionic solution polymerization of polymerizable monomers to produce polymers containing...
4043968 Process for producing methylolated amide copolymers in concentrated organic solvent solution  
Monoethylenically unsaturated monomers including an amide monomer are copolymerized in organic solvent solution to provide an amide copolymer solution, and volatile nitrogen-containing materials...
4035328 Continuous process for making urea formaldehyde pigment  
A white, bright and opaque urea formaldehyde pigment is prepared in a continuous process by precipitating a urea formaldehyde resin or prepolymer having a relatively low water tolerance and a...
3994842 Rubber with organic acid and methoxy methyl nylon, sulfur vulcanized  
Reinforced rubber composites having high Young's modulus and tear energy and a highly improved creep strength are produced by melt-blending 100 parts by weight of a natural or synthetic rubber,...
3980734 Thermoplastic moulding compositions based on poly (oxymethylene)  
Branched or crosslinked poly(exymethylenes) are suitable as nucleating agents for linear poly(oxymethylenes). For ameliorating the mechanical properties of shaped articles, being prepared of such...
3975496 Process for settling red mud in the digestion of bauxite  
The invention provides novel water-soluble copolymers useful as flocculating agents, especially in flocculating the red mud formed during the Bayer process for the production of alumina from...
3963662 Polyion complex and process for preparation thereof  
A polyion complex derived from a polyanion and a polycation of the general formula ##SPC1## And a process for preparing the polyion complex. A film having superior water permeability and high...
3960638 Process for separating a number of sheets into groups  
A process for separating a number of sheets into groups of sheets comprising coating an adhesive composition on an edge of a stack of the sheets and fanning the sheets. The adhesive composition...
3955997 Semi-solid emulsion coating composition  
A semi-solid emulsion coating composition which is shapable and fluidizable under shear when contacted to the surface of an article to be coated, and comprising at least an aqueous emulsion; a...
3947431 Compounding nitrile polymers to reduce the extractable HCN with a formaldehyde compound  
A method for compounding a nitrile polymer with a formaldehyde compound in order to reduce the extractable HCN content of the nitrile polymer which process comprises blending a formaldehyde...
3943108 Photoconductive composition of an aldehyde condensate  
Polymeric photoconductive composition having recurring structural units of the formula: ##EQU1## WHEREIN R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl,...
3931111 Soluble hydrophilic polymers and process for processing the same  
Soluble, hydrophilic polymers suitable for medical use and as blood plasma substitutes comprising low molecular weight polymer derived from at least one monomer of an acrylamide type material or a...
3878170 Polymers containing cyclo-1,1-diallylguanidine linkages and wet strength paper having a content thereof  
Water-soluble polymers are prepared by homopolymerizing 1,1-diallylguanidine or by copolymerizing 1,1-diallylguanidine. The resulting polymers are cationic and are flocculating agents. When...
3787302 PHOTO-SENSITIVE CROSS-LINKING AGENTS FOR HIGH MOLECULAR WEIGHT MATERIALS  
The present invention provides novel photo-sensitive cross-linking agents for high molecular weight materials comprising aromatic polyaldehydes and derivatives thereof, of the formula: Cho-r-cho...
3718711 POLYCHLORAL HOMOPOLYMERS CONTAINING POLYETHERS, POLYOLEFINS, OF POLYURETHANES  
A polymer blend alloy comprising polychloral and an elastomer is disclosed. The polymer blend alloy is characterized by the presence of a single solid phase when viewed under an optical microscope...
3681472 SHAPED STRUCTURES  
This application discloses a process of preparing a self-supporting shaped structure which comprises polymerizing a solid phase monomer in the presence of a fluid catalyst. Specifically, trioxane...
3638703 HEAT STABLE POLYESTER CORD REINFORCED RUBBER STRUCTURE  
Polyester cord reinforced rubber structures such as pneumatic tires are protected against heat degradation by the use of an acid reaction product of a methylene donor such as hexamethylenetetramine...
3626027 PROCESS FOR PRODUCING A GRAFT COPOLYMER COMPOSITION HAVING A POLYETHER AS ONE COMPONENT  
A process is disclosed and claimed for producing a graft copolymer composition, (e.g., polyether). The composition is prepared by adding and mixing more than an equivalent of an aliphatic polyether...
3626030 STABILIZED MACROMOLECULAR POLYACETALS AND PROCESS FOR MAKING THE SAME  
Improved stabilization of polyacetals against thermal and oxidative degraion, particularly stabilization of homopolymers of formaldehyde or its cyclic oligomers and of copolymers of trioxane with...
3597386 REFRACTORY HEAT INSULATING SLEEVE  
Sleeves for thermally insulating the molten head metal in casting risers and ingot moulds are described in which the sleeve is formed incompletely, and has a gap running from top to bottom thereof....
3551525 SURFACE COATING COPOLYMERS CONTAINING ETHERIFIED N-METHYLOLAMIDE  
3536673 DYE-RECEPTIVE POLYOLEFIN COMPOSITION CONTAINING POLYOXYMETHYLENE  
3533969 HALOALKYLATION REACTION EMPLOYING TICL4  
Matches 151 - 200 out of 312 < 1 2 3 4 5 6 7 >