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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06/14/2001 | WO2001042357A1 Branched polyacetal resin composition |
06/14/2001 | WO2001042326A1 Polyacetal copolymer |
06/07/2001 | WO2001040376A1 Branched polyacetal resin composition |
06/07/2001 | WO2001040375A1 Branched polyacetal resin composition |
05/30/2001 | CN1066463C Process for producing stabilized oxymethylene copolymer |
05/16/2001 | CN1295585A Polyoxymethylene moulding material with improved processing stability and reduced emissions tendency |
05/15/2001 | US6232507 Preparing formaldehyde from methanol by dehydrogenation in reactor at specified temperature in presence of catalyst introduced into reactor with carbon-free carrier gas, separating formaldehyde, recirculating remaining gas mixture |
05/08/2001 | US6229053 Via scrubbing with cyclohexanol in absorption unit forming the hemiformal, converting impurities to gaseous state, then thermally cleaving in a pyrolysis unit; preparing oligomers, dyestuffs, fertilizers, and seed treatments |
04/25/2001 | CN1064982C Polyacetal resin composition with good ageing-resistant characteristics |
04/11/2001 | EP1090051A1 Polyoxymethylene moulding material with improved processing stability and a reduced emissions tendency |
03/29/2001 | WO2001021326A1 Water-soluble coating agents bearing initiator groups and coating process |
02/15/2001 | WO2001010952A1 Low-emission coloured polyoxymethylene moulding material |
02/15/2001 | WO2001010934A1 Block copolymer having polymer segment derived from oxazoline |
02/15/2001 | DE19936715A1 Emissionsarme eingefärbte Polyoxymethylen-Formmassen Low-emission colored polyoxymethylene molding compositions |
02/15/2001 | CA2381042A1 Block copolymers having a polymer segment derived from oxazoline |
02/08/2001 | WO2001009213A1 Polyacetal block copolymer |
02/07/2001 | CN1061664C Thermally stable polyoxymethylene copolymer |
02/07/2001 | CN1061641C Process for preparing paraformaldehyde |
01/31/2001 | CN1281867A Production method of keto-aldehyde resin |
01/24/2001 | EP1070755A1 Liquid mixture consisting of diesel gas oils and oxygenated compounds |
01/18/2001 | WO2001004171A1 Method of terminating oxymethylene polymerization |
01/11/2001 | WO2001002453A1 Low-molecular oxymethylene polymer and composition thereof |
01/03/2001 | EP0865454B1 Addition of amine to improve paraformaldehyde |
01/02/2001 | US6169164 Directly upstream of grinding assembly, feeding back portion of deactivation suspension which comprises both deactivation medium and crude polymer which has already been ground |
12/28/2000 | WO2000078866A1 Polyacetal resin composition__________________________________ |
12/28/2000 | CA2346465A1 Polyacetal resin composition__________________________________ |
12/27/2000 | EP1062195A1 Method for non-oxidative production of formaldehyde from methanol |
12/13/2000 | CN1276803A Copolymerization of formaldehyde and cyclic ethers using initiators based upon tetraphenyl borates |
12/13/2000 | CN1276372A Trioxane storage method, polyformaldehyde resin obtained by polymerization thereof and producing process thereof |
11/15/2000 | EP1052260A1 Trimerisation of formaldehyde in the gas phase |
11/09/2000 | DE19920830A1 Trimerisierung von Formaldehyd in der Gasphase Trimerization of formaldehyde in the gas phase |
11/07/2000 | US6143930 Employing a multiple distillation process coupled with an optional extraction of acetaldehyde in manufacture of high purity acetic acid |
10/31/2000 | US6139804 Process for production of polyoxymethylene |
10/10/2000 | US6130280 High-rigidity oxymethylene polymer resin molding |
09/21/2000 | WO2000055227A1 Polyacetal copolymer and method for producing the same |
09/21/2000 | WO2000012471A8 Method for the non-oxidative production of formaldehyde from methanol |
09/13/2000 | EP1034202A1 Co-polymeric compounds comprising one or more active aldehyde monomeric unit |
09/05/2000 | US6114434 Water-dilutable resins, process for preparing them, and their use |
08/17/2000 | WO2000047646A1 Process for continuously producing polyacetal resin |
08/16/2000 | EP1027318A1 Method for purification of formaldehyde, use thereof and plastics produced therewith |
08/09/2000 | EP1025139A1 Copolymerization of formaldehyde and cyclic ethers using initiators based upon tetraphenyl borates |
08/03/2000 | WO2000009578A9 Method and materials for fabrication of alumoxane polymers |
07/27/2000 | WO2000029548A3 Coupled peptides |
07/19/2000 | EP1019444A1 Glyoxylic compound comprising one or more active ingredient |
06/28/2000 | EP0925316B1 New polymer acetals from hydroxycarboxylic acids and the derivatives thereof and process for the production thereof |
06/21/2000 | CN1053679C Process for producing acetal copolymer |
06/08/2000 | WO2000032709A1 Substance for bonding, coating and sealing, consisting of cyanoacrylates and aldehyde or ketone condensation products |
06/08/2000 | DE19957677A1 Cyanoacrylate adhesive, coating or sealing material, especially for porous substrates such as paper, contains cyanoacrylate and condensation product of aldehyde or ketone with polyol |
06/08/2000 | CA2353605A1 Substance for bonding, coating and sealing, consisting of cyanoacrylates and aldehyde or ketone condensation products |
06/06/2000 | US6072021 Copolymerization of formaldehyde and cyclic ethers using initiators based upon tetraphenyl borates |
05/31/2000 | EP1003799A1 Process for copolymerization of formaldehyde with cyclic ethers in the presence of organic nitro compounds |
05/25/2000 | WO2000029548A2 Coupled peptides |
05/25/2000 | CA2345934A1 Coupled peptides |
05/10/2000 | EP0999224A1 Process for the preparation of polyacetal copolymers |
05/09/2000 | US6060571 Time-release agents comprising a polyether copolymer of acrolein and a dihydric alcohol for use in aqueous systems to obtain a prolonged microbiocidal effect on microorganisms; algicides; paints; coatings; adhesives; leather; wood textiles |
05/03/2000 | CN1251799A Materials for production of stable polyoxymethylene copolymer and method for producing the same copolymer from the same materials |
04/19/2000 | EP0994135A1 Process for the preparation of thermally stable polyoxymethylene copolymers |
03/30/2000 | WO2000017247A1 Polyoxymethylene copolymer and composition thereof |
03/29/2000 | EP0988270A1 Method for producing formaldehyde from methanol in a non-oxidating manner |
03/29/2000 | EP0988269A1 Method for producing formaldehyde from methanol |
03/29/2000 | CN1248990A Process for stabilizying oxymethylene copolymer |
03/22/2000 | EP0986528A1 Method for producing formaldehyde from methanol in a non-oxidating manner |
03/22/2000 | CN1050614C Method of stabilizing molecular ends of oxymethylene copolymer |
03/14/2000 | US6037439 Process for continuous production of polyacetal resin |
03/09/2000 | WO2000012471A1 Method for the non-oxidative production of formaldehyde from methanol |
03/08/2000 | CA2274380A1 Process for the preparation of thermally stable polyoxymethylene copolymers |
03/08/2000 | CA2274377A1 Process for the preparation of polyacetal copolymers |
03/02/2000 | DE19839740A1 Verfahren zur nicht-oxidativen Herstellung von Formaldehyd aus Methanol A process for the nonoxidative preparing formaldehyde from methanol |
02/29/2000 | US6031132 Amide-group-containing polyacetal and its production process and use |
02/24/2000 | WO2000009578A1 Method and materials for fabrication of alumoxane polymers |
02/24/2000 | DE19838182A1 Cationically initiated preparation of oxymethylene copolymer molding materials useful in automobile construction and in the electronics industry |
02/22/2000 | CA2007741C Diphosphine type catalyst compositions |
02/15/2000 | US6025309 Polymeric acetals of hydroxycarboxylic acids and their derivatives, and a process for their preparation |
02/03/2000 | WO2000005285A1 Copolyacetal |
01/11/2000 | US6012349 Compatible polymeric means for communicating power and motion |
12/29/1999 | EP0967194A1 Preparation of di-tert-peroxides |
12/08/1999 | EP0962475A1 Amidated polyacetals, process for producing the same, and use thereof |
12/08/1999 | EP0682661B1 Resinous binder compositions |
12/01/1999 | CN1046951C Resinous binder compositions |
11/30/1999 | US5994455 Process for the preparation of thermally stable polyoxymethylene copolymers |
11/25/1999 | DE19815663A1 Polyoxymethylen-Formmasse mit verbesserter Verarbeitungsstabilität und verminderter Emissionsneigung Polyoxymethylene molding composition having improved processing stability and reduced emission tendency |
11/03/1999 | CN1234019A Removal of permanganate reducing compounds and alkyl iodides from a carbonylation process stream |
10/26/1999 | US5973081 Modified polyacetal and method of producing the same |
10/21/1999 | WO1999052959A1 Polyoxymethylene moulding material with improved processing stability and a reduced emissions tendency |
10/21/1999 | CA2327827A1 Polyoxymethylene moulding material with improved processing stability and a reduced emissions tendency |
10/13/1999 | CN1045612C Process for producing stabilized oxymethylene copolymer |
10/05/1999 | US5962623 Process for the preparation of polyacetal copolymers |
10/05/1999 | US5962582 Hydrophilic synthetic resins, esterified for stability to hydrolysis, which are particularly suitable for aqueous systems |
09/22/1999 | EP0789040B1 Process for producing polyoxymethylene |
09/16/1999 | WO1999046228A1 Method for non-oxidative production of formaldehyde from methanol |
09/16/1999 | DE19810087A1 Catalyst exhaustion in non-oxidative catalytic preparation of formaldehyde by methanol dehydration using carbon-free carrier gas |
09/08/1999 | CN1227852A Process for preparing polyformol copolymer composition |
09/07/1999 | US5948841 Process for production of stabilized oxymethylene copolymer |
08/24/1999 | US5942595 Copolymerizing formaldehye with a slurry comprising particles of polyoxymethylene polymer or copolymer suspended in a hydrocarbon solvent having dissolved within it one or more cyclic ethers and organonitrogen compound as catalyst |
08/11/1999 | EP0934243A2 Removal of permanganate reducing compounds and alkyl iodides from a carbonylation process stream |
07/27/1999 | US5929195 Process for producing branched or crosslinked polyacetal resin |
06/30/1999 | EP0925316A1 New polymer acetals from hydroxycarboxylic acids and the derivatives thereof and process for the production thereof |
06/29/1999 | US5917094 Acrolein-releasing emulsion homopolymers |
06/24/1999 | WO1999031156A1 Amidated polyacetals, process for producing the same, and use thereof |
05/14/1999 | WO1999023054A1 Method for purification of formaldehyde, use thereof and plastics produced therewith |