| Patents for C08G 2 - Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances (1,915) |
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| 05/06/1999 | WO1999021903A1 Copolymerization of formaldehyde and cyclic ethers using initiators based upon tetraphenyl borates |
| 05/06/1999 | DE19748380A1 Verfahren zur Reinigung von Formaldehyd, seine Verwendung sowie damit hergestellte Kunststoffe A process for purifying formaldehyde, its use as well as plastics so produced |
| 04/27/1999 | US5898087 Contacting formaldehyde solution with amine stabilizer; heating, aging, condensation polymerization; transferring through nozzle to form prills; countercurrent gas flow; solidification |
| 04/14/1999 | EP0908486A2 Water-dilutable resins, process for their preparation and their use |
| 04/08/1999 | WO1999016804A1 Glyoxylic compound comprising one or more active ingredient |
| 04/08/1999 | WO1999016803A1 Co-polymeric compounds comprising one or more active aldehyde monomeric unit |
| 04/08/1999 | WO1999016802A1 Copolymeric compounds comprising one or more active aldehyde monomeric unit |
| 04/08/1999 | WO1999016801A1 Glyoxylic compound comprising one or more active ingredient |
| 04/08/1999 | CA2310737A1 Co-polymeric compounds comprising one or more active aldehyde monomeric unit |
| 04/08/1999 | CA2305392A1 Glyoxylic compound comprising one or more active ingredient |
| 03/23/1999 | US5886139 Process for producing polyacetal copolymer |
| 03/03/1999 | CN1209441A Process for continuous production of polyacetal resin |
| 03/03/1999 | CN1042341C Apparatus for continuously producing polyacetal |
| 02/25/1999 | WO1999009082A1 Process for copolymerization of formaldehyde with cyclic ethers in the presence of organic nitro compounds |
| 02/25/1999 | CA2295824A1 Process for copolymerization of formaldehyde with cyclic ethers in the presence of organic nitro compounds |
| 02/18/1999 | DE19735277A1 Vessel for polymerizing formal |
| 02/03/1999 | CN1207107A Polymerizable composition of vinylpyrrolidone and vinyl caprolactam |
| 02/02/1999 | USH1784 Gears, bearing of polyketone and another polymer contactsurfaces |
| 02/02/1999 | US5866670 Process for preparing polyacetal copolymer |
| 01/27/1999 | CN1206018A Process for producing branched or crosslined polyacetal resin |
| 01/19/1999 | US5861471 Polysulphone/polyether block copolycondensates |
| 01/07/1999 | DE19814284A1 Formaldehyde from methanol production method |
| 01/05/1999 | US5856288 Polyalkylene glycol-polyglyoxylate block copolymer, its production process and use |
| 01/05/1999 | CA2020726C Formal compounds, fuel oil additives, and fuel oil compositions |
| 12/29/1998 | CA1340294C Fluorination of acetals, ketals and orthoesters |
| 12/24/1998 | DE19814281A1 Verfahren zur nicht oxidativen Herstellung von Formaldehyd aus Methanol A process for the non-oxidative production of formaldehyde from methanol |
| 12/22/1998 | US5852135 Thermoplastic resin compositions and a method of producing the same |
| 12/10/1998 | WO1998055436A1 Method for producing formaldehyde from methanol |
| 12/10/1998 | WO1998055435A1 Method for producing formaldehyde from methanol in a non-oxidating manner |
| 12/10/1998 | WO1998055434A1 Method for producing formaldehyde from methanol in a non-oxidating manner |
| 12/10/1998 | WO1998055433A1 Method for producing formaldehyde from methanol in a non-oxidating manner |
| 12/03/1998 | DE19814285A1 Verfahren zur Herstellung von Formaldehyd aus Methanol A process for preparing formaldehyde from methanol |
| 12/03/1998 | DE19814283A1 Verfahren zur nicht oxidativen Herstellung von Formaldehyd aus Methanol A process for the non-oxidative production of formaldehyde from methanol |
| 12/01/1998 | US5844059 Process for preparing polyacetal copolymer |
| 11/17/1998 | US5837781 Catalytic polymerization of 1,3-dioxolane in the presence of boron trifluoride with complexes |
| 10/01/1998 | WO1998042781A1 Process for stabilizying oxymethylene copolymer |
| 09/23/1998 | EP0865454A1 Addition of amine to improve paraformaldehyde |
| 09/22/1998 | US5811511 Method for stabilizing unstable terminals of an oxymethylene copolymer |
| 08/26/1998 | CN1191226A Process for producing stabilized oxymethylene copolymer |
| 07/24/1998 | CA2195930A1 Process for preparing polyacetal copolymer |
| 07/22/1998 | CN1039249C Method for improving rheology and processability of cellulose-based spinning solutions |
| 07/09/1998 | WO1998029483A1 High-rigidity oxymethylene polymer resin molding |
| 06/25/1998 | WO1998017619A3 Removal of permanganate reducing compounds and alkyl iodides from a carbonylation process stream |
| 06/24/1998 | EP0849297A1 Acrolein releasing emulsion homopolymer |
| 06/24/1998 | EP0695379B1 Method for improving the rheology and the processability of cellulose-based spinning solutions |
| 05/28/1998 | DE19648970A1 Process for preparing polyacetal copolymer |
| 05/26/1998 | US5756594 Catalytic polymerization of aldehyde carboxylate monomer to form polyacetal and crosslinking with polyvinyl ethers, diesters, diepoxides, anhydrides, dinitriles and diacyl compounds |
| 05/06/1998 | CN1180714A Process for deactivating catalyst contained in oxymethylene copolymer and process for producing stabilized oxymethylene copolymer |
| 05/06/1998 | CN1180713A Process for producing stabilized oxymethylene copolymer |
| 04/30/1998 | WO1998017619A2 Removal of permanganate reducing compounds and alkyl iodides from a carbonylation process stream |
| 04/29/1998 | EP0838485A1 Esterified hydrophilic resins stable to saponification and particularly suited for aqueous systems |
| 04/23/1998 | CA2218810A1 Hydrophilic synthetic resins, esterified for stability to hydrolysis, which are particularly suitable for aqueous systems |
| 04/21/1998 | US5741866 Heat resistance |
| 03/19/1998 | WO1998011147A1 New polymer acetals from hydroxycarboxylic acids and the derivatives thereof and process for the production thereof |
| 03/17/1998 | US5728798 Process for preparing polyacetal copolymer |
| 03/12/1998 | DE19636688A1 Neue polymere Acetale von Hydroxycarbonsäuren und deren Derivaten und Verfahren zu ihrer Herstellung New polymeric acetals of hydroxycarboxylic acids and their derivatives and process for their preparation |
| 03/11/1998 | CN1175596A Boron trifluoride complex for polymerization of trioxane |
| 03/10/1998 | US5726276 Isopolyacid or salt as polymerization catalyst |
| 02/04/1998 | CN1172489A Process for producing stabilized oxymethylene copolymer |
| 02/03/1998 | US5714638 Preparation of polyoxyalkylene glycol monoether of tert-butyl alcohol and product |
| 11/26/1997 | CN1165832A Process for producing polyacetal copolymer |
| 11/18/1997 | US5688897 Method for producing a stabilized oxymethylene copolymer |
| 11/11/1997 | US5686554 Process for the manufacture of paraformaldehyde |
| 11/06/1997 | DE19708769A1 Thermally stable polyoxymethylene copolymer |
| 11/05/1997 | CN1163901A Thermally stable polyoxymethylene copolymer |
| 10/29/1997 | EP0803521A1 Block copolymer and its production process and use |
| 10/23/1997 | WO1997039042A1 Process for the production of polyacetal copolymer |
| 10/15/1997 | CN1162321A Process for producing polyoxymethylene |
| 10/15/1997 | CN1161985A Polyacetal resin composition with good ageing-resistant characteristics |
| 09/25/1997 | WO1997034941A1 Addition of amine to improve paraformaldehyde |
| 09/03/1997 | EP0792895A1 Acrolein releasing copolymers |
| 08/27/1997 | CN1158137A Process for the producing of polyacetal copolymer |
| 08/21/1997 | DE19705559A1 Polyacetal resin composition with good long-term high temperature thermal stability |
| 08/19/1997 | US5659068 Preparation of polyoxyalkylene glycol monoesters of monocarboxylic acids |
| 08/13/1997 | EP0789040A1 Process for producing polyoxymethylene |
| 08/06/1997 | CN1156469A Thermoplastic resin composition and process for production thereof |
| 07/30/1997 | CN1035510C One-step process for after-treating molten polyformaldehyde |
| 07/10/1997 | WO1997024384A1 Process for the preparation of stabilized polyacetal resin |
| 07/09/1997 | CN1153789A Process for preparing polyacetal copolymer |
| 07/01/1997 | USH1666 Method of cross-linking poly(ethylene oxide) and poly[oxymethylene-oligo(oxyethylene)] with ultraviolet radiation |
| 06/25/1997 | EP0780348A1 Cement dispersant |
| 06/10/1997 | US5637671 Fluorine-containing compounds having polyacetalic structure, and process for preparing them |
| 06/04/1997 | EP0776341A1 Cationic polymerization in carbon dioxide |
| 05/14/1997 | EP0573463B1 Use of polyacetals in washing and cleaning agents |
| 05/07/1997 | EP0771848A1 Thermoplastic resin composition and process for production thereof |
| 05/02/1997 | EP0687278B1 Polymers containing polyacetal blocks, method of producing them and their use |
| 04/22/1997 | CA2087002C Process for manufacturing multisequence star or network polycondensates by di- or multi-aldehyde coupling, and polycondensates obtained |
| 04/03/1997 | CA2186936A1 Process for preparing polyacetal copolymer |
| 03/26/1997 | EP0764674A2 Fluorination of acetals, ketals and orthoesters |
| 03/04/1997 | US5608030 Process for the preparation of polyacetals |
| 03/04/1997 | CA1338967C Treatment and after-treatment of metal with carbohydrate-modified polyphenol compounds |
| 02/27/1997 | DE19633708A1 Poly-acetal copolymers prodn. |
| 02/22/1997 | CA2183710A1 Process for producing polyacetal copolymer |
| 02/19/1997 | CN1143375A Method of stabilizing molecular ends of oxymethylene copolymer |
| 02/05/1997 | CN1142235A Modified polyacetal and process for production thereof |
| 01/30/1997 | WO1997003100A1 Process for the production of polyacetal copolymer |
| 01/22/1997 | CN1141048A Process for producing stabilized oxymethylene copolymer |
| 01/08/1997 | EP0656914B1 Process for producing polyacetals, their use and the polyacetals produced |
| 12/24/1996 | US5587449 Immediately deactivating initiator by addition of basic compound, degrading unstable chain ends, spontaneous solidification due to evaporation of residual monomer |
| 12/10/1996 | US5582637 Method for improving the rheology and the processability of cellulose-based spinning solutions |