Patents for C08F 6 - Post-polymerisation treatments (8,582)
12/1977
12/13/1977US4062662 Degassing column
12/06/1977US4061858 Distillation
12/06/1977US4061849 Process for the recovery of gaseous or vaporous monomers from reaction off-gases
11/1977
11/22/1977US4058904 Process for drying wet particles of hydrolyzed ethylene-vinyl acetate copolymer
10/1977
10/11/1977US4053697 Process for producing propylene homopolymers and copolymers
10/04/1977US4052301 Process for purifying waste water
09/1977
09/27/1977US4051313 Process for purifying polypropylene
09/27/1977US4051212 Hydrolysis
09/20/1977US4049897 Residual solvent removal from chlorinated polymers
09/13/1977US4048411 Manufacture of copolymers of ethylene
08/1977
08/02/1977US4039149 Lump breaker apparatus for reactor tank
07/1977
07/26/1977US4038230 Aqueous dispersion of particulate spheroidal polytetrafluoroethylene
07/26/1977US4038172 Coal, paper, wood, lignin substances, red clay catalyst
07/05/1977US4033933 Thermal discoloration inhibition with polyoxyalkylene glycols
06/1977
06/28/1977US4032598 Treatment with a base
06/28/1977US4032497 Rotating inclined hollow cylinder, moist gas
06/21/1977US4031056 Process for the removal of vinyl chloride from latexes containing polyvinyl chloride
06/14/1977US4029877 Process for preparing polyolefin
06/14/1977US4029725 Nonoxidative process for purifying aqueous inorganic salt solutions employed in the wet spinning of filamentary vinyl polymers
06/14/1977US4029300 Extruder of the degassing and modification type
06/07/1977US4028485 From olefins or olefin polymer solutions
06/07/1977US4028340 Process for preparing p-vinylphenol polymer
05/1977
05/03/1977US4021399 Method for the concentration of water-in-oil emulsions of water soluble vinyl addition polymers
04/1977
04/26/1977US4020276 Sealant barrier for electrical cables
04/26/1977US4020267 Removal of residual monomer in the presence of water by dielectric heating
04/26/1977US4020266 Oriented crystallization of polymers
04/26/1977US4020263 Process for the production of emulsion polyvinyl chloride under avoidance of vinyl chloride emissions
04/26/1977US4020032 Steam treatment, evaporation
04/12/1977US4017445 Process for the removal of vinyl chloride from polyvinyl chloride dispersions
04/05/1977US4016350 P-toluenesulfonic acid, stearyl thioglycolate, stearyl 3-mercaptopropionate
04/05/1977US4016349 Process for removing vanadium residues from polymer solutions
04/05/1977US4016101 Process and composition for breaking emulsions
03/1977
03/29/1977US4015065 Treatment of vinyl halide polymers
03/29/1977US4015064 Manufacture of polyvinyl chloride of low vinyl chloride monomer content
03/29/1977US4014859 Production of polyethylene
03/29/1977US4014754 Adding a plasticizer, distillation, n-methyl pyrrolidone
03/22/1977US4013739 Posttreatment of copolymer of styrene and acrylonitrile
02/1977
02/22/1977US4009048 Solvent cleaning and recovery process
02/15/1977US4008361 Removal of residual vinyl halide monomer from vinyl halide polymers by radio frequency dielectric heating
02/08/1977US4007321 Manufacture of particulate olefin polymers
02/08/1977US4007022 Process for the removal of gaseous monomers from polyvinyl chloride-water dispersions
12/1976
12/21/1976US3998797 Posttreatment of copolymer of styrene and acrylonitrile
12/21/1976US3998655 Amide solvent; evaporation, fractional distillation, extrusion
12/14/1976US3997705 Method of coagulating a fluoro-elastomer from an aqueous dispersion thereof
12/14/1976US3997360 Process for cleaning vinyl chloride polymerization reactors
11/1976
11/23/1976US3993713 Atomization, spray drying
11/23/1976US3993615 Process and composition for breaking emulsions
10/1976
10/19/1976US3987235 Devolatilization of alkenyl aromatic polymers
10/12/1976USRE29004 Deactivating and removing aluminum and titanium contaminant from Ziegler-Natta polymerization mixtures
10/12/1976US3985136 Tab fastener having fixed end anchored to diaper facing and backing
10/05/1976US3984218 Activated carbon, desorption with steam, regeneration with inert gas
09/1976
09/21/1976US3981854 Chloroprene polymer isolation
09/14/1976US3980600 Process for removing residual mercaptan from high nitrile polymers
09/14/1976US3980529 Process for separating and recovering residual monomers from aqueous suspensions of acrylonitrile polymers
08/1976
08/24/1976US3976631 Process for preparing ethylene polymers
08/24/1976US3976611 Free-flowing beads of particles of an acrylate elastomer
08/17/1976US3975230 Alkali metal sulfite or carbonate
07/1976
07/27/1976US3971744 Plasticizers, hydrophilic fillers
07/20/1976US3970611 Melt finishing process for polymers produced by vapor state polymerization processes
07/13/1976US3969091 Process for desiccant drier regeneration
07/06/1976US3968059 Process for producing methyl methacrylate polymers
07/06/1976US3967928 Method for quantitatively analyzing substances containing elements other than carbon, hydrogen and oxygen and volatile organic compounds
06/1976
06/29/1976US3966666 Continuous process for preparing a spinning solution of acrylic polymers
06/22/1976US3965079 Separation and recovery of products obtained in catalytic processes of preparing acrylonitrile polymers or copolymers
06/08/1976US3962203 Dechlorination of high yield polyolefins using neutral phosphoryl esters
06/08/1976US3962199 Process for removing vanadium catalyst residues from polymer solutions
06/08/1976US3962169 Fluoroelastomer latex containing lithium ion and a creaming agent and process for preparation thereof
05/1976
05/25/1976US3959243 Stabilizing polypropylene; organometallic catalyst, surfactant
05/25/1976US3958585 Apparatus for stripping residual solvent from polymer pellets
05/18/1976US3957912 Method for preparation of abs type resins
05/11/1976US3956249 Manufacture of polyvinyl chloride of low vinyl chloride monomer content by treatment of wet polyvinyl chloride
05/04/1976US3954910 Process for removal and recovery of unreacted monomers from resinous polymers
04/1976
04/13/1976US3950302 Copolymerization of a vinyl ester and an acrylamide, spray drying
04/13/1976US3950284 Vinyl polymers, graft or block polymers
03/1976
03/30/1976US3947431 Compounding nitrile polymers to reduce the extractable HCN with a formaldehyde compound
03/16/1976US3944690 Production of nonwoven fabrics
03/16/1976US3944513 Purification of polymer dispersions with adsorbent carbon particles
03/09/1976US3942262 Dryer temperature control
02/1976
02/03/1976US3936512 Process for manufacturing a synthetic microflake aggregate
01/1976
01/06/1976US3931356 Polymerization
01/06/1976US3931130 Process for removing residual volatile solvent impurities from polymer molding pellets
01/06/1976US3930931 Apparatus and method for stripping styrene from an aqueous dispersion of styrene-butadiene polymer latex
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