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| Number | Title | Issue Date |
| 4656284 | Process for preparing N-methyl 2- or 4-pyridones Aromatic hydroxyl- or thiol-containing compounds are methylated by contacting with methyl trichloroacetate at elevated temperatures in the presence of an initiator.... | 04/07/1987 |
| 4587329 | Dense star polymers having two dimensional molecular diameter Dense star polymers having terminal group densities greater than conventional extended star polymers exhibit greater and more uniform reactivity than their corresponding conventional star polymers. For example, a third generation, hydroxy-terminated polye... | 05/06/1986 |
| 4568737 | Dense star polymers and dendrimers Dense star polymers having terminal group densities greater than conventional star polymers exhibit greater and more uniform reactivity than their corresponding conventional star polymers. For example, a third generation, amine-terminated polyamidoamine d... | 02/04/1986 |
| 4432881 | Water-dispersible hydrophobic thickening agent An aqueous liquid medium having increased low shear viscosity as provided by dispersing into the aqueous medium (1) a water-soluble polymer having pendant hydrophobic groups, e.g., an acrylamide dodecyl acrylate copolymer, and (2) a water-dispersible surf... | 02/21/1984 |
| 4421660 | Colloidal size hydrophobic polymers particulate having discrete particles of an inorganic material dispersed therein Colloidal size particles of an inorganic solid such as magnetic iron oxide or titanium dioxide are encapsulated in a hydrophobic addition polymer such as a polymer of styrene by a polymerization process wherein a water-immiscible (hydrophobic) monomer is ... | 12/20/1983 |
| 4189553 | High efficiency catalyst for polymerizing olefins Compositions exhibiting high catalytic activity in the polymerization of -olefins, particularly higher olefins, are provided by reacting a trivalent titanium halide complex such as an alcohol complex of titanium trichloride, an organomagnesium comp... | 02/19/1980 |
| 4115619 | Highly reflective multilayer metal/polymer composites A multilayer, metal/organic polymer composite, exhibiting high specular reflectivity even after substantial elongation, is provided by metallizing a layer of thermoplastic organic polymers such as polystyrene or polycarbonate film with a normally solid so... | 09/19/1978 |
| 4054733 | Ar-halo-ar(t-alkyl)styrenes polymers Ar-halo-ar(t-alkyl)styrenes, e.g., 2-chloro-4-(t-butyl)styrene, polymerize to form materials having unusually high temperature resistance. Additionally, compositions of such monomers, unsaturated polyesters and free-radical generating catalysts cure at lo... | 10/18/1977 |
| 4049604 | Emulsion polymerization method for preparing aqueous dispersions of organic polymer particles Aqueous dispersions of normally solid, organic polymeric particles are prepared by (1) dispensing an oil phase containing at least one emulsion polymerizable monomer such as styrene in an aqueous phase containing a stabilizing emulsifier such as sodium do... | 09/20/1977 |
| 4049736 | Dehydration of -methylbenzyl alcohols to form monovinylidene aromatic monomers -Alkylbenzyl alcohol and substituted -alkylbenzyl alcohols are converted in high yield and purity to styrene and substituted styrenes by contacting the alcohol in vapor phase with silica gel and steam.... | 09/20/1977 |
| 4039507 | Incorporation of finely divided functional solids into olefin A finely divided functional solid is readily incorporated into olefin polymers such as polyethylene, polypropylene and polystyrene by blending a concentrate of the functional solid in a carrier of an ethylene/butene-1 copolymer with the olefin polymer. Th... | 08/02/1977 |
| 4015317 | Process for sizing textile fibers for use on water jet looms Textile fibers exhibiting improved characteristics for weaving on water jet looms are prepared by sizing such fibers with copolymers of an aliphatic -olefin such as ethylene and an ammoniated ,ଲ-ethylenically unsaturated carboxylic aci... | 04/05/1977 |
| 4014965 | Process for scrapless forming of plastic articles Plastic articles without foam spots are produced by an improved powder forming process wherein a powder of normally solid, thermoplastic polymer is compacted by means of vibratory energy into briquettes which are subsequently forged and formed into articl... | 03/29/1977 |
| 4001310 | Polyethers having oxidized thioether side chains Polyethers having utility as adhesion promoters for various polymers to metals and other substrates comprise repeating monomer units represented by the general formula: ##STR1## wherein Z is --CH=CR1 R2, or ##STR2## wh... | 01/04/1977 |
| 4000246 | Removal of gases from an enclosed space using metal hydrocarbyl oxides Gases are removed from enclosed spaces by (1) purging the space to be enclosed with a reactive gas such as carbon dioxide, (2) adding a metal hydrocarbyloxide and a solid absorbent for the volatile reaction products of the reactive gas and the metal hydro... | 12/28/1976 |
| 3996725 | Apparatus for filling and hermetically sealing thermoplastic containers under vacuum Thermoplastic containers are filled with materials such as particulate solids or liquids under vacuum and hermetically sealed in rapid succession by an apparatus having a means for evacuating the container, means for filling and hermetically sealing the e... | 12/14/1976 |
| 3993811 | Thermal insulating panel for use in an insulative container and method of making said panel A panel having a double wall construction of a structural plastic material is provided with improved thermal insulative properties by (1) metallizing at least one surface of each wall of the panel with metal such as silver to provide a light reflective su... | 11/23/1976 |
| 3984387 | Preparation of linear -olefin polymers having ultra high molecular weight Ultra high molecular weight, linear -olefin polymers are produced without reactor fouling by polymerizing an -olefin in the presence of Ziegler catalyst dispersed in an inert diluent and an amount of an inert gas not in excess of that which ... | 10/05/1976 |
| 3978378 | Articles having electroconductive components of highly electroconductive resinous compositions Non-conductive or poorly conductive resinous materials such as organic polymers are rendered highly conductive, e.g., volume resistivities as low as 10-.sup.3 ohm-cm, by including therein a finely divided, copper metal-containing solid and a sa... | 08/31/1976 |
| 3968319 | Plastic pigments for paper coatings Paper coatings exhibiting improved pick resistance at lower binder levels are provided by incorporating into a conventional binder a pigment comprising a copolymer of an ethylenically unsaturated hard monomer such as styrene and an ethylenically unsaturat... | 07/06/1976 |
| 3959561 | Transparent astatic resinous articles and method for their production A method for the rapid rendering of transparent polymer articles astatic by treating the articles with dilute gaseous sulfur trioxide followed by treatment with base such as ammonia and water or dilute aqueous ammonia. The articles are rendered permanentl... | 05/25/1976 |
| 3956163 | Pigmented detergents Pigmented detergents having improved shelf stability are provided by dispersing in liquid detergent a polymeric pigment made by an emulsion polymerization process comprising the steps of (1) emulsion polymerizing from about 0 to about 80 weight percent of... | 05/11/1976 |
| 3950296 | Reversible coacervation of anion-containing aqueous disperse systems with amphoteric polyelectrolytes Fluid, stable compositions containing aqueous disperse systems of (1) anionizable material, e.g., an aqueous solution of an organic polymer having carboxylate functionality, and (2) a water-dispersible amphoteric polyelectrolyte, e.g., a copolymer of 2-am... | 04/13/1976 |
| 3949138 | Coatings containing plastic polymeric pigments A light weight coating comprising a convenient binder such as starch and small colorless plastic, polymeric particles which remain discrete and retain a diameter of about one wavelength of visible light. The coating, prepared by dispersing the plastic, po... | 04/06/1976 |
| 3947396 | Coacervation of anion-containing aqueous disperse systems with amphoteric polyelectrolytes Fluid, stable compositions containing aqueous disperse systems of anionizable material, e.g., a latex of an organic polymer having carboxylate functionality, and a water-dispersible amphoteric polyelectrolyte, e.g., a copolymer of 2-aminoethyl methacrylat... | 03/30/1976 |
| 3947539 | Method for cold forming plastic article Plastic substrate in the form of sheet, disk, or plate is advantageously converted to a shaped article by first surface sulfonating the plastic substrate and thereafter cold forming the plastic substrate to the desired shape. Surface sulfonation of the pl... | 03/30/1976 |
