| Patents for C08F 12 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring (6,445) |
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| 05/11/1999 | US5902834 Open porous spherical; first preparing a water/oil/water emulsion in two stages, then polymerizing vinyl or di-vinyl monomers and isolating the particles; support material such as for solid phase synthesis |
| 05/06/1999 | EP0912620A1 Process for the preparation of polymer particles |
| 05/06/1999 | EP0912619A1 Process for the preparation of polymer particles |
| 05/06/1999 | EP0912615A1 Production of branched polymers |
| 05/06/1999 | EP0811023B1 Process for producing polymers of vinyl aromatic compounds using polymer-containing catalyst systems |
| 05/05/1999 | CN1216049A Process for preparation of vinylic polymers, polymerization initiator for vinylic monomers, and styrene resin composition |
| 05/04/1999 | CA1340528C Process for the suspension polymerization of 4-acetoxystyrene and hydroylsis to 4-hydrozystyrene polymers |
| 05/03/1999 | CA2252277A1 New quinolinium dyes and borates in photopolymerizable compositions |
| 04/29/1999 | WO1999020665A1 Preparation of multimodal polymer compositions using multinuclear metallocene catalysts |
| 04/29/1999 | DE19849755A1 New quaternary phosphonium resins |
| 04/29/1999 | CA2306987A1 Preparation of multimodal polymer compositions using multinuclear metallocene catalysts |
| 04/28/1999 | CN1215420A Cationically polymerizable compositions capable of being applied by electrostatic assistance |
| 04/21/1999 | EP0760824B1 Polymerisation in the presence of a beta-substituted nitroxide radical |
| 04/15/1999 | WO1999001795A3 Pattern-forming methods and radiation sensitive materials |
| 04/14/1999 | EP0785964B1 Non-linear styrenic polymer-based foams |
| 04/07/1999 | EP0906345A1 Brominated polystyrene having improved thermal stability and color and process for the preparation thereof |
| 04/06/1999 | US5892037 Polymeric adducts of hindered amine-epoxides as stabilizers |
| 04/06/1999 | US5891963 Graft polymer using coordination catalyst |
| 04/06/1999 | US5891574 Polyazacycloalkanes, tri-, tetra- or penta-azamacrocyclic complexes, processs for the production of these substituted or unsubstituted polyazacycloalkanes grafted to a support and uses of polyazacycloalkanes and the aforementioned complexes |
| 03/31/1999 | EP0905154A1 Process for preparing syndiotactic vinyl aromatic polymers under high pressure inert gas |
| 03/30/1999 | US5889130 Monomeric and polymeric cyclic amine and N-halamine compounds |
| 03/30/1999 | US5888254 Leuco vat-dye preparations in granule form |
| 03/25/1999 | WO1999014247A1 Catalysts for the polymerization of olefins, process for the production of olefin polymers, and processes for the production of styrene polymers |
| 03/25/1999 | WO1999001796A3 Pattern-forming methods |
| 03/24/1999 | EP0796285B1 Process for producing polystyrene by anionic polymerisation |
| 03/23/1999 | US5886224 Useful for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins |
| 03/23/1999 | US5886117 Polymerizing vinyl aromatic monomer having high degree of syndiotacticity, in presence of a catalyst of the group 4 metal complex containing boron |
| 03/18/1999 | WO1999012979A1 Processes for improving stability of living polymerization chain ends |
| 03/18/1999 | CA2269119A1 Catalyst for polymerizing an olefinic monomer, method for producing an olefinic polymer and method for producing a styrenic polymer |
| 03/17/1999 | EP0674667B1 Monomer presenting at least one isocyanate function and an insaturation, synthesis process and (co)polymers derived therefrom |
| 03/16/1999 | US5882835 Positive photoresist resin and chemical amplified positive photoresist composition containing the same |
| 03/11/1999 | WO1999011679A1 Styrene polymer with bimodal molecular weight distribution |
| 03/11/1999 | WO1999011674A1 Method for producing particulate polymers by additionally using a stable n-oxyl radical |
| 03/11/1999 | WO1998057995A3 Cyclopenta[i]phenanthrene metal complex catalyst systems |
| 03/10/1999 | EP0900241A1 Silyl linker for solid phase organic synthesis of aryl-containing molecules |
| 03/10/1999 | EP0821699B1 Coupling of anionic polymers with trialkoxysilanes having silicon-hydrogen bonds |
| 03/10/1999 | CN1210114A Catalyst for preparing m-stereospecific polymerized styrene |
| 03/10/1999 | CN1210112A Catalyst for preparing styrene stereospecific polymers |
| 03/09/1999 | US5880323 Processes for making α-olefins |
| 03/09/1999 | US5880241 Highly branched polyalkenes |
| 03/09/1999 | US5880232 Free radical polymerization in the presence of sulfide compound |
| 03/04/1999 | WO1999010394A1 Syndiotactic vinylaromatic polymerization using multiple reactors in series |
| 03/04/1999 | DE19738082A1 Styrolpolymere mit bimodaler Molekulargewichtsverteilung Styrenic polymers having a bimodal molecular weight distribution |
| 03/04/1999 | DE19738081A1 Verfahren zur Herstellung von partikelförmigen Polymerisaten unter Mitverwendung eines stabilen N-Oxyl-Radikals A process for the production of particulate polymers with the additional use of a stable N-oxyl radical |
| 03/04/1999 | CA2291699A1 Syndiotactic vinylaromatic polymerization using multiple reactors in series |
| 03/02/1999 | US5877271 Finishing process for syndiotactic vinyl aromatic polymers |
| 02/24/1999 | EP0897396A1 Improved syndiotactic vinylidene aromatic polymerization process |
| 02/18/1999 | WO1999007745A1 Gas phase production of polydienes with pre-activated nickel catalysts |
| 02/18/1999 | CA2299375A1 Gas phase production of polydienes with pre-activated nickel catalysts |
| 02/17/1999 | EP0896596A1 Process for the production of functional polyolefins |
| 02/17/1999 | EP0896590A1 Rapid purification by polymer supported quench |
| 02/17/1999 | EP0707014B1 Process for producing aromatic vinyl compound copolymer |
| 02/09/1999 | US5869721 Polymerization catalysts for vinylaromatic compounds |
| 02/09/1999 | US5869588 Uv absorbers |
| 02/09/1999 | US5869579 Chloromethylated divinybenzene-styrene resin modified with branched diol and carbonyldiimidazole; intermediates |
| 02/09/1999 | US5869547 Using polymer containing (meth)acryloxy trimellitic anhydride monomer; excellent surface wettability and transparency, high refractive index, lipid-deposit resistance |
| 02/04/1999 | WO1999005186A1 PROCESS FOR THE PRODUCTION OF STEREOREGULAR POLYMERS AND ELASTOMERS OF α-OLEFINS AND CERTAIN NOVEL CATALYSTS THEREFOR |
| 02/04/1999 | WO1999005100A1 Ionic compounds with delocalized anionic charge, their use as components of ionic conductors or catalyst |
| 02/04/1999 | WO1999005099A1 Synthesis of dithioester chain transfer agents and use of bis(thioacyl) disulfides or dithioesters as chain transfer agents |
| 02/04/1999 | CA2337339A1 Synthesis of dithioester chain transfer agents and use of bis(thioacyl) disulfides or dithioesters as chain transfer agents |
| 02/04/1999 | CA2298772A1 Process for the production of stereoregular polymers and elastomers of .alpha.-olefins and certain novel catalysts therefor |
| 02/03/1999 | EP0894798A1 Polymerisable diketopyrrolopyrroles |
| 02/03/1999 | EP0669897B1 Separation of nucleic acid fragments |
| 02/02/1999 | US5866663 Processes of polymerizing olefins |
| 02/02/1999 | US5866635 Contact and intraocular lenses. |
| 01/30/1999 | CA2244316A1 Polymerisable diketopyrrolopyrroles |
| 01/27/1999 | EP0784639B1 Syndiotactic prochiral olefin polymerization process |
| 01/27/1999 | EP0778860B1 Expandable styrene polymers containing recyclate |
| 01/27/1999 | CN1206424A Improved processes based on atom (or group) transfer fadical polymerization and novel (CO) polymers having useful structure and properties |
| 01/26/1999 | US5863957 Porous crosslinked polymeric microbeads having cavities joined by interconnecting pores wherein at least some of the cavities at the interior of each microbead communicate with the surface of the bead |
| 01/26/1999 | US5863956 Mesomorphic complexes of polyelectrolytes and surfactants, process for producing the same and films, foils, fibers, molded bodies and coatings made thereof |
| 01/26/1999 | US5863701 Polymers for photoresists used for printing plates and circuit boards |
| 01/26/1999 | US5863612 Method of making fluoropolymers |
| 01/21/1999 | WO1999002571A1 Catalytic components for the polymerization of olefins, polymerization catalysts, and process for polymerizing olefins by using the same |
| 01/20/1999 | CN1205709A Process for prepn. of very acidic cation exchangers |
| 01/20/1999 | CN1041732C Process for prepn. of syndiotactic vinyl aromatic polymers |
| 01/19/1999 | US5861474 Removing contaminants from a flowing polymer |
| 01/19/1999 | CA2160677C Uv-absorbing benzotriazoles having a styrene group |
| 01/14/1999 | WO1999001796A2 Pattern-forming methods |
| 01/14/1999 | WO1999001795A2 Pattern-forming methods and radiation sensitive materials |
| 01/13/1999 | EP0890176A1 Proton conductor in liquid form |
| 01/13/1999 | EP0889936A1 Cationically polymerizable compositions capable of being applied by electrostatic assistance |
| 01/13/1999 | EP0889863A2 Surface modified carbonate materials |
| 01/12/1999 | US5858904 Catalyst for production of vinyl-based polymer and process for production of vinyl-based aromatic polymer |
| 01/07/1999 | WO1999000432A1 Improved acid catalyzed polymerization |
| 01/07/1999 | EP0888565A1 Liquid crystal display device |
| 01/07/1999 | EP0888281A1 Reactive liquid crystal compounds |
| 01/07/1999 | EP0888262A1 Cycloalkyl derivatives and the solid-phase synthesis of such derivatives |
| 01/07/1999 | CA2288857A1 Improved acid catalyzed polymerization |
| 01/05/1999 | US5856561 Bisphenol carboxylic acid tertiary ester derivatives and chemically amplified positive resist compositions |
| 01/05/1999 | US5856411 Resins for use in chemically amplified resists and manufacturing methods thereof |
| 12/30/1998 | CN1203604A Process for preparation of polymerisates of vinyl aromatic compounds in one stage using double screw extruders |
| 12/29/1998 | US5854367 Process for cationic polymerization |
| 12/29/1998 | US5854364 Process for the controlled radical polymerization or copolymerization of (meth)acrylic, vinyl, vinylidene and diene monomers, and (co)polymers obtained |
| 12/29/1998 | US5853953 Polymers and photoresist compositions comprising same |
| 12/24/1998 | DE19725647A1 Cyclopenta[I]phenanthren-Metallkomplex-Katalysatorsysteme Cyclopenta [I] phenanthrene-metal complex catalyst systems |
| 12/23/1998 | WO1998057995A2 Cyclopenta[i]phenanthrene metal complex catalyst systems |
| 12/23/1998 | CA2294255A1 Cyclopenta[i]phenanthrene metal complex catalyst systems |
| 12/22/1998 | US5852131 Process for brominating polystyrenic resins |
| 12/17/1998 | WO1998056838A1 Transparent optical formed pieces and layers with low hydrogen content |