| Patents for C08F 6 - Post-polymerisation treatments (8,582) |
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| 12/10/1991 | US5071950 Dry-phase copolymerization; fluidized bed; separation into gas and solid phase; flushing; recycling; odorless |
| 12/04/1991 | EP0459161A2 Process for continuously coagulating vinylpolymer lattices |
| 12/03/1991 | US5069750 Tapering projections |
| 11/22/1991 | WO1991018024A1 Process for making copolymers of maleic anhydride and a c1-c4 alkyl vinyl ether having a predetermined specific viscosity |
| 11/22/1991 | CA2082826A1 Process for making copolymers of maleic anhydride and a c1-c4 alkyl vinyl ether having a predetermined specific viscosity |
| 11/12/1991 | US5064938 Coagulation slurrying |
| 11/12/1991 | US5064582 Spraying with water, mixing, blending with polymer gel |
| 11/11/1991 | CA2040949A1 Removal of residual acid from chlorinated polymers |
| 10/31/1991 | WO1991016189A1 Polymer grafting process, apparatus and products obtained therewith |
| 10/23/1991 | EP0453155A1 Distributor for a devolatilizer |
| 10/17/1991 | WO1991015520A1 Decomposition of ethylenically unsaturated carboxylic esters |
| 10/16/1991 | EP0452093A1 Polymer melt distributor |
| 10/16/1991 | EP0451998A2 Process for stabilizing chloroprene copolymer latex |
| 10/16/1991 | EP0451602A1 Continuous process for upgrading polymer solutions for a requested specification of residual solvents |
| 10/13/1991 | CA2040309A1 Distributor for a devolatilizer |
| 10/13/1991 | CA2040308A1 Polymer melt distributor |
| 10/09/1991 | EP0449832A1 Method of isolating copolymers of vinylpyridine and styrene |
| 10/08/1991 | US5055197 Treating with an acid cation exchange resin and ultrafiltration |
| 10/08/1991 | CA2039809A1 Continuous process for concentrating polymer solutions up to a required specification level of residual solvents |
| 10/02/1991 | EP0449502A1 Stabilization of methacrylic polymers against sterilizing radiation |
| 10/01/1991 | CA2039571A1 Decomposition of ethylenically unsaturated carboxylic esters |
| 09/25/1991 | EP0448082A2 Method for the continuous fractionation of polymers and apparatus therefor |
| 09/24/1991 | US5051456 Adding a dielectric to absorb electromagnetic waves and conduct heat in diene-ethylene-propylene terpolymers, passing a gas to remove the diene |
| 09/24/1991 | CA1289697C Polyolefin compositions containing trialkanolamines |
| 09/19/1991 | WO1991013915A1 Process for purifying brominated polystyrene |
| 09/17/1991 | US5049328 Purification, impregnation and foaming of polymer particles with carbon dioxide |
| 09/11/1991 | EP0413809A4 Improved suspension polymerization in an organic medium |
| 09/10/1991 | US5047468 Polymerization of ethylene and alpha-olefins using coordination catalyst yields blend of high and low density polymers |
| 09/10/1991 | US5047446 Thermal treatment of irradiated propylene polymer material |
| 09/10/1991 | US5047188 Process for preparation of modified methacrylic resin molding material |
| 09/04/1991 | EP0444505A2 Process of producing linear alpha-olefins |
| 08/27/1991 | US5043421 Solvent removal; slurrying with non-solvent; blending; polyphenylene ethers; polycarbonates; polystyrenes |
| 08/21/1991 | EP0442679A1 Purification of latex |
| 08/21/1991 | EP0442569A2 Process to produce tack-free rubber particles |
| 08/21/1991 | EP0441975A1 Method of preparing water-absorbent resin |
| 08/20/1991 | US5041464 Process for preparing polymer emulsion particles having pores |
| 08/20/1991 | CA1287946C Removal of vinylpyrrolidone from vinylpyrrolidone polymers |
| 08/17/1991 | CA2035604A1 Purification of latex |
| 08/14/1991 | EP0440888A1 Thin layer reactor with reveral shafts |
| 08/14/1991 | EP0440838A1 Process for separating volatile materials from reaction mixtures obtained by high-pressure polymerization |
| 08/13/1991 | US5039765 Preparation of ethylene polymers using a Ziegler catalyst system, and ethylene polymers prepared in this manner and having less odor |
| 08/13/1991 | CA1287463C Apparatus for degassing and pelleting polyolefins |
| 08/06/1991 | US5037955 Method for heating a viscous polyethylene solution |
| 07/23/1991 | US5034132 Method for extraction |
| 07/23/1991 | CA1286838C Water treatment method for resin in a purge vessel |
| 07/16/1991 | US5032659 With neutralized (meth)acrylic acid |
| 07/09/1991 | US5030713 Crystallization, combining with column packing material, transferring to column, eluting by temperature rising elution fractionation |
| 07/09/1991 | CA1285927C Preparation of olefin polymerization catalyst component |
| 07/03/1991 | EP0435116A2 Process for the purification of polymers of isobutylene |
| 06/18/1991 | US5024728 Volatilizer connected to vacuum coupled to heat exchanger |
| 06/18/1991 | CA1285097C Amorphous polyalphaolefin process |
| 06/12/1991 | EP0431631A2 BF3 removal from BF3 catalyzed olefin oligomer |
| 05/29/1991 | EP0429017A1 Polymer treatment process |
| 05/29/1991 | DE3938877A1 Graft copolymer contg. below 30 ppm residual monomer - by emulsion polymerisation to give graft copolymer, spray drying to form powder and extracting with supercritical carbon di:oxide |
| 05/22/1991 | CN1051568A Thermoplastic inierpeneirating network structure and method of forming same |
| 05/15/1991 | EP0427446A2 Process for deaerating polymeric solutions |
| 05/15/1991 | EP0427134A1 Treatment of polyarylene sulfide/sulfone polymers |
| 05/15/1991 | CN1012615B Polymarization method for prodcing polyacrylates |
| 05/14/1991 | US5015708 Precipitation polymerization of terpolymers of a vinyl lactam, a polymerizable carboxylic acid and a hydrophobic monomer in an aliphatic hydrocarbon solvent |
| 05/14/1991 | CA1284242C Stable emulsions of water resistant polyvinyl alcohol-stabilized vinyl chloride-ethylene copolymers |
| 05/09/1991 | CA2027264A1 Process for deaerating polymeric solutions |
| 05/08/1991 | EP0426482A2 Filled thermoplastic resin compositions having an interpenetrating phase forming a three-dimensional network structure and melt-blending methods for forming the same |
| 05/07/1991 | CA2023861A1 Treatment of polyarylene sulfide/sulfone polymers |
| 05/02/1991 | EP0425201A1 Polyester mixture, its preparation and use |
| 05/02/1991 | CA2029032A1 Thermoplastic interpenetrating network structure and method of forming the same |
| 04/24/1991 | EP0423759A2 Production process of particulate polymer |
| 04/23/1991 | US5010150 Polymerization in powder bed in the presence of polymerization initiator |
| 04/23/1991 | US5010047 Recovery of double metal cyanide complex catalyst from a polymer |
| 04/23/1991 | CA1283496C Method for the deactivation and neutralization of polyolefin catalysts |
| 04/19/1991 | CA2027878A1 Production process of particulate polymer |
| 04/18/1991 | WO1991004991A1 Process for treating maleic anhydride-alkyl vinyl ether copolymer |
| 04/09/1991 | US5005771 Process for the continuous drying of hydrophilic polymer gels |
| 04/09/1991 | CA1282899C ISOPROPANOLAMINES AS CATALYST DEACTIVATORS IN SOLUTION PROCESS FOR POLYMERIZATION OF .alpha.-OLEFINS |
| 04/03/1991 | EP0419681A1 Method of producing syndiotactic polypropylene |
| 04/03/1991 | CA2023564A1 Process of rendering copolymer powders of maleic anhydride and an alkyl vinyl ether prepared in benzene solvent substantially benzene-free |
| 04/02/1991 | CA1282400C Deactivation of aluminum alkyls |
| 03/27/1991 | EP0418721A2 Process of preparation of copolymers clear in water |
| 03/26/1991 | US5003014 Process for making copolymers of maleic anhydride and a C1 -C4 alkyl vinyl ether having a predetermined specific viscosity |
| 03/23/1991 | CA2025043A1 Preparation of copolymers which form clear aqueous solutions |
| 03/21/1991 | WO1991003515A1 Polymer recycling by selective dissolution |
| 03/21/1991 | WO1991003497A1 Method of preparing water-absorbent resin |
| 03/20/1991 | EP0417761A2 Process and apparatus for recycling aqueous fluid absorbents fines |
| 03/20/1991 | EP0417606A2 Method of making highly adsorptive copolymers |
| 03/20/1991 | CN1012065B Isopropanolamines as catalyst deactivators in solution process for polymerization of alpha-olefins |
| 03/16/1991 | CA2025420A1 Process and apparatus for recycling aqueous fluid absorbents fines |
| 03/13/1991 | EP0305447A4 Improved insoluble vinyl lactam clarifiers |
| 03/12/1991 | CA1281473C Particulate polymer and preparation process thereof |
| 03/06/1991 | EP0415427A2 Polymer recovery process |
| 03/06/1991 | EP0415277A2 Process for preparing polyolefin beads |
| 03/05/1991 | US4997911 Coagulation, solvent extraction |
| 02/27/1991 | EP0413830A1 Method or removing volatile substances and apparatus therefor |
| 02/27/1991 | EP0413809A1 Improved suspension polymerization in an organic medium. |
| 02/26/1991 | US4996251 Polymeric compositions and their production |
| 02/26/1991 | US4996026 Separation system and reducing the emission of solids in pressure relief processes in high pressure polymerization reactors |
| 02/24/1991 | WO1991002552A1 Superabsorbent material, superabsorbent structure, absorbent article and process for preparing said superabsorbent |
| 02/24/1991 | CA2064871A1 Superabsorbent material, superabsorbent structure, absorbent article and process for preparing said superabsorbent |
| 02/19/1991 | CA1280543C Polypropylene with free-end long chain branching, process for making it, and use thereof |
| 02/19/1991 | CA1280532C Process for the production of polyvinyl chloride of low vinyl chloride content |
| 02/13/1991 | EP0412597A2 Method for removing A1C13-based catalyst residues from polymer mixtures |
| 02/13/1991 | EP0412388A2 Process of preparation of fine particles of polymers in powder form |