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| Number | Title | Issue Date |
| 4037018 | Cationic aqueous compositions of polymer having amine groups, acid neutralized, and abis-maleimide cross-linker, coatings and process A heat-curable coating composition contains a polymer having pendant amine groups and a bis-maleimide cross-linking agent in aqueous dispersion. The amine groups of the polymer are protonated to render the polymer water dispersible. The amine groups are a... | 07/19/1977 |
| 4031038 | Water insoluble chelate exchange resins having a crosslinked polymer matrix and pendant thereto a plurality of methyleneaminopyridine groups New chelate exchange resins capable of selective recovery of copper, nickel, and other valuable metals from an acidic aqueous leach liquor are prepared by reacting a crosslinked haloalkyl polymer matrix resin (I) with certain aminopyridines (II) to give a... | 06/21/1977 |
| 4025705 | Insoluble adsorber resin suitable for treating drinking water and sewage The invention relates to a process for removing oleophilic odor- and tasteproducing substances from water by treating the water with an insoluble, macroporous adsorber resin comprising a matrix based on a crosslinked organic polymer containing aromatic nu... | 05/24/1977 |
| 3997706 | Process for the chloromethylation of styrene-divinylbenzene copolymers There is disclosed a process for chloromethylating styrene-divinylbenzene copolymers by treating the copolymers with methylal and thionyl chloride in a molar ratio not exceeding 2:1 and in the presence of a catalyst of the Friedel-Crafts type or which con... | 12/14/1976 |
| 3994719 | Resins for separating heavy metals consisting of thiourea-group-containing macroporous vinyl aromatic crosslinked matrixes The invention concerns new, crosslinked, macroporous, vinyl-aromatic plastic materials containing thiourea groups, to processes for their production and to their use for adsorbing metal compounds, especially noble metal and mercury compounds.... | 11/30/1976 |
| 3992530 | [D-2-(1,4-Cyclohexadienyl)gly]6 -des-gly10 -lrh nonapeptide amides Compounds of the formula: ##EQU1## in which R4 and R.sup. 5 are methyl or R.sup. 4 is hydrogen and R5 is alkyl of 1 to 5 carbon atoms or phenethyl, or a non-toxic acid addition salt thereof, are claudogenic-interceptive agents u... | 11/16/1976 |
| 3985715 | Oxazolidone derivatives of chloromethylated polymers and methods of making the same The application discloses polymers and methods of making same in which a chlorine atom of a chloromethyl pendant group of a polymer such as a chloromethylated copolymer of styrene and divinylbenzene is substituted with a derivative of malonic acid having ... | 10/12/1976 |
| 3975334 | Polymeric organotin hydride reagents Insoluble polymeric organotin hydrides of the formula: ##EQU1## wherein P represents an organic polymer backbone; R and R1 each represent a hydrogen atom, a lower alkyl group of 1 to 5 carbon atoms, an aryl group of 6 to 10 carbon atoms, o... | 08/17/1976 |
| 3970603 | Amino acid derivatives of chloromethylated polymers and methods of making the same The application discloses polymers and methods of making same in which a chlorine atom of a chloromethyl pendant group of a polymer such as a chloromethylated copolymer of styrene and divinylbenzene is substituted with a derivative of malonic acid having ... | 07/20/1976 |
| 3969284 | Amino acid derivatives of chloromethylated polymers and methods of making the same The application discloses polymers and methods of making same in which a chlorine atom of a chloromethyl pendant group of a polymer such as a chloromethylated copolymer of styrene and divinylbenzene is substituted with a derivative of malonic acid having ... | 07/13/1976 |
| 3959190 | Insoluble oxidation reagent A polymeric sulfide oxidation reagent comprising a cross-linked polymeric resin carrying a plurality of lower alkyl sulfide groups, its preparation and its use as a co-reactant for the oxidation of primary and secondary alcohols are disclosed.... | 05/25/1976 |
| 3954709 | Phenylethyl group containing resins for the synthesis of peptides The phenylethyl group, ##SPC1## In polymer carriers for the synthesis of peptides and peptide amides, particularly polymer carriers such as styrene-1% divinyl benzene polymers for use in solid phase peptide synthesis. The invention described herein was ma... | 05/04/1976 |
| 3933770 | Method of preparing transition metal complex catalysts There is provided a method of preparing transition metal complex catalysts combined with organic high polymers.... | 01/20/1976 |
