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| Number | Title | Issue Date |
| 4097649 | Resin-impregnated self-adhering or heat-sealable papers and method of making Methods for making resin-impregnated self-adhering or heat-sealable papers by impregnating a raw absorbent paper with an aqueous dispersion of a self-cross-linking resin in which the average diameter of the resin particles is less than 2 microns and, in t... | 06/27/1978 |
| 4090773 | Infrared-reflecting glazing Polymethylmethacrylate sheet comprising light-reflecting particles arranged parallel to the surfaces of the sheet, said particles having a thickness d and an index of refraction n, at a wavelength of infrared light from 800 to 1500 nm, such that d = (0.2 ... | 05/23/1978 |
| 4081465 | Method for the oxidative dehydrogenation of isobutyric acid In a method for the oxidative dehydrogenation of isobutyric acid in the gas phase, in the presence of oxygen and water vapor at a temperature from 300° C. - 500° C., and in the presence of a solid catalyst, the improvement wherein said catalyst initiall... | 03/28/1978 |
| 4071653 | Powdery copolymer comprising methyl methacrylate and monomer having a basic nitrogen atom A powdery copolymer having a powder particle size from 0.1 to 200 microns, said copolymer comprising at least 50 percent by weight of methyl methacrylate and 0.2 to 10 percent by weight of at least one monomer having a basic nitrogen atom, the balance, if... | 01/31/1978 |
| 4070348 | Water-swellable, bead copolymer Water-swellable, cross-linked, bead copolymers of (A) an ethylenically unsaturated monomer having a carboxylic acid anhydride, glycidyl or succinimide group, (B) a comonomer having at least two radical-polymerizable carbon double bonds, and (C) a radical-... | 01/24/1978 |
| 4069381 | Method for preparing glycol esters An improved method for making glycol monoesters and diesters of carboxylic acid by the reaction of an olefin and oxygen in the presence of a carboxylic acid and a catalyst, wherein said catalyst includes a compound of a metal of groups IVB - VIIB having a... | 01/17/1978 |
| 4059574 | Symmetric azo-bis-mercapto compounds Symmetric azo-bis-mercapto compounds of the formula ##STR1## wherein R1 and R2 are methyl or ethyl, R3 and R4 are the same or different alkylene having 1 to 4 carbon atoms, and n is 0 or 1, and a method for... | 11/22/1977 |
| 4055590 | Method of making carboxylic acid esters In a method for making a carboxylic acid ester by the reaction of the corresponding carboxylic acid amide with a primary alcohol in the presence of a catalyst at elevated temperature, the improvement wherein said catalyst is an at least partially dissolve... | 10/25/1977 |
| 4054162 | Color stabilized acrylonitrile polymers Compositions containing a polymer or copolymer of acrylonitrile stabilized against thermal discoloration by the presence, in the composition, of a nitroalkane, a nitrocycloalkane, an alkyl-, cycloalkyl-, or aryl-isocyanate, or of a pyrocarbonic acid dialk... | 10/18/1977 |
| 4039413 | Method of bonding a polypeptide to a macromolecular polymeric carrier by irradiation with light Methods for bonding a polypeptide to a macro-molecular carrier compound by irradiating an aqueous solution of the polypeptide, in the absence of oxygen and in the presence of said carrier compound, with ultraviolet light in the optional presence of a phot... | 08/02/1977 |
| 4038360 | Method for contouring the surface of thermoplastic synthetic resins A method for contouring the surface of a thermoplastic synthetic resin sheet, which comprises contacting said sheet, warmed to the softening temperature of the synthetic resin, with a rigid structure having perforations therein and having a sheet of rubbe... | 07/26/1977 |
| 4018829 | Method for making -hydroxy-isobutyramide from acetone cyanohydrin In a method for making -hydroxy-isobutyramide by the hydration of acetone cyanohydrin in the presence of manganese dioxide as a catalyst, the improvement wherein acetone is added to the reaction mixture.... | 04/19/1977 |
| 3994682 | Two-step washing method for textiles A two-step method for washing textiles which comprises washing said textiles in a first step with an aqueous bath containing both a cationic surface-active agent and a non-ionogenic surface-active agent, and then washing said textiles in a second step wit... | 11/30/1976 |
| 3986926 | Method for preparing tannable pelts from animal skins and hides A method for preparing tannable pelts from animal skins or hides, said method effecting concurrent softening, dehairing, opening of the hide structure, and bating in a single procedural step, which method comprises treating said skins or hides, free of pr... | 10/19/1976 |
| 3987090 | Hydroxy esters of acrylic and methacrylic acids An improvement is disclosed of a process for reacting acrylic or methacrylic acid with a vicinal epoxide in the presence of a basic nitrogen compound to produce the corresponding hydroxy ester which comprises carrying out the reaction in the presence of a... | 10/19/1976 |
| 3981908 | Preparation of glycol esters An improved process for preparing glycol esters by reacting an olefin with oxygen in the presence of a carboxylic acid or an inert medium containing a carboxylic acid is described in which the improvement comprises carrying out the reaction in the presenc... | 09/21/1976 |
| 3979349 | Dispersions of water-soluble polymers and methods for making and using the same Polymer dispersions in which an aqueous phase comprising a water-soluble polymer is dispersed in an organic liquid in the presence of a polymeric water-in-oil type dispersing agent containing salt-forming basic nitrogen atoms. When the dispersion is mixed... | 09/07/1976 |
| 3976754 | Method for making cyanogen chloride A method for making cyanogen chloride which comprises passing an approximately equimolar mixture of dicyan and chlorine over a charcoal catalyst at a temperature between 500°C. and 950°C. at a space velocity between 1000 and 10000 liters, measured at ro... | 08/24/1976 |
| 3966551 | Method for preparing tannable pelts from animal skins and hides In a process for the preparation of tannable pelts from animal skins or hides wherein concurrent soaking, unhairing, opening up of the hide structure, and bating are effected in a single procedural step by treatment with enzymes in an aqueous bath contain... | 06/29/1976 |
| 3960934 | Method for the oxycarbonylation of ethylene and propylene A process for the catalytic oxycarbonylation of ethylene and propylene by reaction with carbon monoxide and oxygen in a methanolic or ethanolic reaction medium employing a catalyst which contains a compound of vanadium, chromium, iron, cobalt, nickel or c... | 06/01/1976 |
| 3952045 | Method for preparing carbonic acid esters A method for preparing carbonic acid esters, ##EQU1## by reacting an alcohol, ROH, with carbon monoxide and oxygen in the presence of a catalyst comprising a copper salt, chloride or bromide, and an organic phosphorus compound such as a phosphine oxi... | 04/20/1976 |
| 3948866 | Polymerization with the aid of macromolecule having both a monomer soluble portion and suspension soluble portion A process for the suspension polymerization of ethylenically unsaturated monomers -- particularly for the preparation of water-soluble polymers -- wherein a liquid monomer phase is polymerized while suspended in a liquid organic suspending medium in the p... | 04/06/1976 |
| 3939040 | Enzymatic bating method A method for bating soaked, limed, dehaired hides with an enzyme mixture of (a) a bacterial protease having an optimum efficacy toward hemoglobin at a pH from 10 to 12 and (b) a fungus protease having an optimum efficacy toward casein at a pH greater than... | 02/17/1976 |
| 3937648 | Method of making paper having a high resin fill Method for making highly resin-filled paper on a paper machine employing a fiber slurry having therein a non-ionic resin in an amount of at least 30 percent (dry resin weight based on dry fiber weight), said resin being combined with the fiber slurry as a... | 02/10/1976 |
