| Patents for C08G 4 - Condensation polymers of aldehydes or ketones with polyalcohols; Addition polymers of heterocyclic oxygen compounds containing in the ring at least once the grouping oco (407) |
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| 05/23/2006 | US7048925 A polyethyleneimine or polylysine copolymerized polyurea containing multiple ether groups when complexed with polynucleotides form useful transfection reagents |
| 03/30/2006 | US20060069230 Biodegradable polyketal polymers and methods for their formation and use |
| 08/30/2005 | US6936662 Polyvinyl acetal resin for coating and ink, and coating and ink compositions |
| 04/27/2005 | CN1610706A Polyvinylacetal resin for paint and ink and paint and ink composition |
| 03/17/2005 | WO2005023899A1 Acid-sensitive polyacetals and methods |
| 03/03/2005 | US20050049387 A polyethyleneimine or polylysine copolymerized polyurea containing multiple ether groups when complexed with polynucleotides form useful transfection reagents |
| 01/13/2005 | US20050010069 Oil ozonolysis |
| 10/20/2004 | EP1468036A2 Biodegradable polyketal polymers and methods for their formation and use |
| 09/08/2004 | EP1453799A1 Oil ozonolysis |
| 08/12/2004 | US20040157987 Colorfastness, odorless, storage stability; reducing concentration od aldehyde |
| 04/29/2004 | US20040082747 Continuous process for the preparation of absorbable monofilament fibers of homopolymers and random copolymers and the use thereof |
| 01/28/2004 | EP1384732A1 Polyvinyl acetal resin for coating and ink, and coating and ink compositions |
| 01/21/2004 | CN1468878A Phenolic aldehyde resin and producing process thereof |
| 12/18/2003 | WO2003059988A3 Biodegradable polyketal polymers and methods for their formation and use |
| 11/20/2003 | US20030216482 Metal-doped organic gels and method thereof |
| 11/19/2003 | EP1003799B1 Process for copolymerization of formaldehyde with cyclic ethers in the presence of organic nitro compounds |
| 09/24/2003 | CN1122054C Process for producing branched or crosslinked polyacetal resin |
| 09/02/2003 | US6613809 Polymerizing metal salt of hydroxylated benzene or hydroxylated benzene derivative with aldehyde by sol-gel process to form metal-doped wet organic gel, exchanging first metal ion for at least one second metal ion |
| 07/24/2003 | WO2003059988A2 Biodegradable polyketal polymers and methods for their formation and use |
| 06/19/2003 | WO2003050081A1 Oil ozonolysis |
| 06/19/2003 | CA2468795A1 Oil ozonolysis |
| 06/05/2003 | WO2003046035A1 Method for the production of oxymethylene homo- or co-polymers |
| 06/04/2003 | EP1315777A2 Degradable polyacetal polymers |
| 05/29/2003 | US20030100619 Metal-doped organic gels and method thereof |
| 05/06/2003 | US6559243 Glyoxylic compound comprising one or more active ingredient by the present invention, a delayed release of the active ingredient is provided upon contact of the compound with an aqueous medium fragrance for detergents |
| 11/28/2002 | US20020176844 Bioerodible polyorthoesters containing hydrogen bonding groups |
| 11/21/2002 | WO2002092655A1 Bioerodible poly(orthoesters) containing hydrogen bonding groups |
| 10/10/2002 | WO2002079281A1 Polyvinyl acetal resin for coating and ink, and coating and ink compositions |
| 06/27/2002 | US20020082362 For use in pharmaceutical and biomedical applications, stability; conjugates of polymers with drugs anticancer drugs used in cancer therapy |
| 05/10/2002 | WO2002020663A3 Degradable polyacetal polymers |
| 03/14/2002 | WO2002020663A2 Degradable polyacetal polymers |
| 03/14/2002 | CA2453050A1 Degradable polyacetal polymers |
| 03/13/2002 | EP1186620A1 Process for the preparation of thermally stable polyoxymethylene copolymers |
| 12/13/2001 | DE10027778A1 Production of an amine-formaldehyde condensate, involves fractionating a mixture of polyoxymethylene glycols, formaldehyde, methylene glycol and water in a column and reacting with an amine in the same column |
| 09/11/2001 | CA2198158C Acrolein - releasing copolymers |
| 06/27/2001 | EP0820473B1 Biodegradable polyacetal polymers and formation and use |
| 12/13/2000 | CN1276803A Copolymerization of formaldehyde and cyclic ethers using initiators based upon tetraphenyl borates |
| 11/21/2000 | CA2144354C Aldehyde resins with reduced and stabilized free-formaldehyde content |
| 08/09/2000 | EP1025139A1 Copolymerization of formaldehyde and cyclic ethers using initiators based upon tetraphenyl borates |
| 06/21/2000 | CN1053679C Process for producing acetal copolymer |
| 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 |
| 05/31/2000 | EP0675146B1 High-molecular-weight polydioxolane and process for producing the same |
| 05/31/2000 | DE19855104A1 Synaretic gels and hardened end products, used e.g. for compacting or binding loose or fine material, purifying sewage and water, encapsulation, filter, packaging or scale model contain chitosan, acid and di- or poly-aldehyde |
| 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 |
| 04/19/2000 | EP0994135A1 Process for the preparation of thermally stable polyoxymethylene copolymers |
| 03/08/2000 | CA2274380A1 Process for the preparation of thermally stable polyoxymethylene copolymers |
| 03/08/2000 | CA2274377A1 Process for the preparation of polyacetal copolymers |
| 02/24/2000 | WO2000009575A1 Process for making acetals |
| 02/01/2000 | CA2011281C Compositions |
| 01/26/2000 | CN1048735C Ketone-aldehyde resins with wide compatibility, process for their prepn., and their use |
| 01/18/2000 | US6015875 Reacting aliphatic alcohol with aliphatic aldehyde in presence of acid catalyst in distillation column reactor, then separation |
| 11/30/1999 | US5994455 Process for the preparation of thermally stable polyoxymethylene copolymers |
| 10/05/1999 | US5962623 Process for the preparation of polyacetal copolymers |
| 09/28/1999 | US5958398 Biodegradable polyacetal polymers and methods for their formation and use |
| 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 |
| 07/27/1999 | US5929195 Process for producing branched or crosslinked polyacetal resin |
| 05/06/1999 | WO1999021903A1 Copolymerization of formaldehyde and cyclic ethers using initiators based upon tetraphenyl borates |
| 03/02/1999 | US5876561 Chlorination; delignification |
| 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 |
| 01/27/1999 | CN1206018A Process for producing branched or crosslined polyacetal resin |
| 01/26/1999 | US5863990 Biodegradable polyacetal polymers and methods for their formation and use |
| 01/05/1999 | US5856288 Polyalkylene glycol-polyglyoxylate block copolymer, its production process and use |
| 12/29/1998 | CA1340294C Fluorination of acetals, ketals and orthoesters |
| 09/22/1998 | US5811510 Biodegradable polyacetal polymers and methods for their formation and use |
| 05/05/1998 | US5747602 Catalysis with heteropolyacid and ketone; neutralization with ammonia and/or organic amine |
| 04/21/1998 | US5741866 Heat resistance |
| 01/28/1998 | EP0820473A1 Biodegradable polyacetal polymers and formation and use |
| 01/06/1998 | US5705597 Ketone-aldehyde resin with wide compatibility, process for its preparation, and composition containing same |
| 10/29/1997 | EP0803521A1 Block copolymer and its production process and use |
| 09/03/1997 | EP0792895A1 Acrolein releasing copolymers |
| 05/06/1997 | US5627261 Adhesive compositions of urea-formaldhyde resins |
| 03/26/1997 | EP0764674A2 Fluorination of acetals, ketals and orthoesters |
| 01/08/1997 | EP0656914B1 Process for producing polyacetals, their use and the polyacetals produced |
| 11/13/1996 | CN1135763A Process for producing acetal copolymer |
| 10/31/1996 | DE19515000A1 Linear polyacetal moulding compsn. with low melt viscosity |
| 10/17/1996 | WO1996032419A1 Biodegradable polyacetal polymers and formation and use |
| 09/17/1996 | US5557012 Fluorination of acetals, ketals and orthoesters |
| 09/03/1996 | US5552510 Oxirane and dioxolane copolymers, process for their preparation and ionic conduction materials containing same |
| 08/21/1996 | CN1129232A Mould plastic of polyacetal and preparation and application thereof |
| 08/06/1996 | US5543567 Fluorination of acetals, ketals and orthoesters |
| 06/04/1996 | US5523496 Fluorination of acetals, ketals and orthoesters |
| 04/24/1996 | EP0708123A2 Polyacetal moulding composition having low melt viscosity |
| 04/09/1996 | US5506332 Preparation of polyacetals, use thereof and novel polyacetals |
| 01/11/1996 | DE4423617A1 Poly:acetal(s) prodn. from cyclic formaldehyde oligomers |
| 11/29/1995 | CN1112571A Ketone-aldehyde resins with wide compatibility, process for their preparation, and their use |
| 11/21/1995 | CA1337618C Acetal copolymers with backbone epoxide functional groups |
| 10/24/1995 | CA1337449C Acetal copolymers with backbone double bonds |
| 10/04/1995 | EP0675146A1 High-molecular-weight polydioxolane and process for producing the same |
| 09/20/1995 | EP0672693A2 Aldehyde resins with reduced and stabilized free-formaldehyde content |
| 08/31/1995 | WO1995023171A1 Process for producing acetal copolymer |
| 08/23/1995 | EP0668301A1 Ketone-aldehyde resins having universal compatibility, process for their production and their use |
| 08/17/1995 | CA2142524A1 Ketone-aldehyde resins with wide compatibility, process for their preparation, and their use |
| 06/14/1995 | EP0656914A1 Process for producing polyacetals, their use and the polyacetals produced. |
| 05/02/1995 | US5412042 Amorphous, blends with crystalline acetal resins have improved impact strength |
| 02/09/1995 | WO1995004099A1 High-molecular-weight polydioxolane and process for producing the same |
| 08/24/1994 | EP0572545B1 Purification of cyclic ketene acetals |
| 06/29/1994 | EP0603370A1 Oxirane and dioxolane copolymers, process for their preparation and ionic conduction materials containing same |