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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09/21/1988 | CN87104972A Process for preparing oxymethylene polymers using boron trifluoride in admixture with an inert gas |
09/20/1988 | US4772662 Disubstituted cellulose ether |
08/24/1988 | EP0279289A2 Continuous process for eliminating unstable components from raw oxymethylene copolymers |
07/19/1988 | US4758608 UV curable non-crystalline acetal terpolymers |
07/14/1988 | DE3700052A1 Multi-piston internal combustion engine with common combustion chamber |
06/14/1988 | US4751272 Polymerizing trioxane and cyclic ether; boron trifluoride catalyst |
05/17/1988 | US4744934 Process for devolatilizing molten oxymethylene polymer |
04/06/1988 | EP0262260A1 Process for preparing thermally stable oxymethylene copolymers |
04/05/1988 | CA1234947A1 Oxymethylene polymer molding compositions having enhanced impact resistance and articles molded therefrom |
03/29/1988 | US4734481 Polyphthaldehydes; photoresists |
03/09/1988 | CN87104398A Improved polyacetal lighter body resin |
02/23/1988 | US4727132 Method of continuous manufacturing of polymers or copolymers of trioxane |
01/27/1988 | EP0254535A2 Process for preparing oxymethylene polymers using boron trifluoride in admixture with nitrogen |
01/07/1988 | EP0251706A2 Improved polyacetal lighter body resin |
12/09/1987 | EP0248487A1 Process for the preparation of polyacetals |
11/17/1987 | US4707525 Oxymethylene polymer molding compositions having enhanced impact resistance and article molded therefrom |
11/04/1987 | EP0244245A2 Process for producing oxymethylene copolymer and resinous composition |
10/13/1987 | CA1228191A1 Method of producing an improved polyacetal polymer |
09/15/1987 | CA1226989A1 Method for manufacturing polymer or copolymer of trioxane |
09/09/1987 | EP0236261A2 Polymers containing organometallic derivatives |
09/08/1987 | US4692505 Process for preparing oxymethylene polymers using boron trifluoride in admixture with an inert gas |
09/08/1987 | US4692290 Process for devolatilizing molten oxymethylene polymer |
09/08/1987 | CA1226698A1 Method of producing polyacetal polymer showing improved heat resistance and moldability |
09/01/1987 | US4691000 Oxymethylene copolymers and process for their preparation |
09/01/1987 | CA1226394A1 Method for manufacturing trioxane copolymer |
08/19/1987 | EP0232329A1 Perfluorinated polyether fluids. |
07/22/1987 | EP0229745A2 Substituted o-phthalaldehydes |
07/21/1987 | US4681927 Trioxane, cyclic ether or formal, catalyst, multistage |
07/08/1987 | CN86107755A Process for devolatilizing molten oxymethylene polymer |
06/23/1987 | US4675452 Lubricants |
05/27/1987 | EP0223537A2 Process for devolatilizing molten oxymethylene polymer |
04/28/1987 | US4661570 Method of continuous polymerization |
04/08/1987 | EP0217560A1 Process for preparing polymer of formaldehyde |
04/01/1987 | EP0216741A2 Process for preparing polymeric acetal carboxylates |
03/25/1987 | EP0215543A1 A new process for making polyesters, polyamides and polyketones |
03/24/1987 | US4652613 Novel elastomer/oxymethylene polymer blends containing polymeric compatibilizing agents |
01/29/1987 | WO1987000538A1 Perfluorinated polyether fluids |
11/26/1986 | EP0202826A2 Continuous manufacturing of polymers or copolymers of trioxane |
11/20/1986 | EP0201948A1 Oxymethylene copolymers and method for their preparation |
11/11/1986 | US4622385 Method of producing polyacetal polymer showing improved heat resistance and moldability |
10/22/1986 | EP0198719A2 Method of continuous polymerization and apparatus therefor |
07/15/1986 | US4600750 Process for preparing polymeric acetal carboxylates |
06/03/1986 | US4593086 Preparation of aromatic ketone-sulfone copolymers |
05/06/1986 | US4587033 Polymeric acetal carboxylate compositions |
04/16/1986 | EP0178183A2 Preparation of aromatic ketone-sulfone copolymers |
04/01/1986 | US4579935 Stereo-hindering phenols to monomer mixture; lewis acid catalysts or complexes |
04/01/1986 | US4579720 Chelation |
03/04/1986 | US4574158 Acetal purification using phase transfer catalysts |
02/11/1986 | US4569983 High modulus |
01/29/1986 | EP0169826A1 Polymeric acetal carboxylate compositions |
01/15/1986 | EP0167834A2 Metal-containing polyaldehyde microspheres |
01/08/1986 | EP0167369A1 Oxymethylene polymer molding compositions having enhanced impact resistance and articles molded therefrom |
12/17/1985 | CA1198246A1 Process and apparatus for continual melt hydrolysis of acetal copolymers |
10/29/1985 | US4550213 Method of manufacture for paraformaldehyde prills |
10/15/1985 | US4547565 Method for manufacturing trioxane copolymer |
09/17/1985 | US4542206 Process for preparing polymeric acetal carboxylate compositions |
09/10/1985 | US4540773 Contercurrent flow with nonsoluble liquid |
09/03/1985 | US4539387 Process for polymerizing formaldehyde |
08/13/1985 | US4535127 Polyacetal copolymers and process for production thereof |
05/08/1985 | EP0140099A2 Process for the production of heat-resistant, mouldable acetal polymer |
04/17/1985 | EP0137305A2 Method of producing an improved polyacetal polymer |
03/19/1985 | CA1184342A1 Method of continuous polymerization |
03/12/1985 | US4504646 Positive type, radiation-sensitive organic polymer materials |
03/12/1985 | US4504636 Process for preparation of formaldehyde copolymers |
01/29/1985 | CA1181889A1 Method for preparing polyacetals and polyketals by emulsion polymerization |
01/15/1985 | US4493752 Separation of triethylamine and tioxane |
01/15/1985 | US4493751 Reduced viscosity |
12/27/1984 | EP0129369A1 Method of manufacturing a copolymer of trioxane |
12/19/1984 | EP0128739A1 Method of manufacturing a homopolymer or copolymer of trioxane |
10/16/1984 | CA1176395A1 Polyoxymethylene fibrids, a process for their production and their use |
07/03/1984 | US4458064 Process and apparatus for continual melt hydrolysis of acetal copolymers |
05/30/1984 | EP0109617A1 Positive type, radiation-sensitive organic polymer materials |
05/16/1984 | EP0108324A1 Process for preparing polyoxymethylenes from formaldehyde |
04/03/1984 | US4440646 Hydroxy or haloalkanephosphonates |
03/13/1984 | US4436900 Process for deactivating polymerization catalyst |
02/14/1984 | US4431794 Continuous preparation of oxymethylene polymers |
01/24/1984 | US4427807 Glass reinforced poly(oxymethylene) composition having improved property retention |
12/20/1983 | CA1159192A1 Process for the production of high molecular weight oxymethylene copolymer in the presence of impurity |
10/26/1983 | EP0092319A1 Method for preparing polyacetals and polyketals by emulsion polymerization |
10/25/1983 | US4412067 Process for the continuous polymerization or copolymerization of trioxane |
10/11/1983 | US4409370 Thermoplastic blend of oxymethylene copolymers exhibiting improved impact resistance |
09/14/1983 | EP0088541A2 Process and apparatus for continual melt hydrolysis of acetal copolymers |
08/16/1983 | US4399272 Process for producing polyacetal copolymers |
07/20/1983 | EP0083698A1 Process for the continuous (co)polymerisation of trioxane |
06/08/1983 | EP0080656A1 Continuous process for producing oxymethylene polymers |
04/19/1983 | US4380620 Process for preparing polyoxymethylenes |
04/19/1983 | US4380610 Polyacetal comb polymers |
03/22/1983 | US4377667 Encapping with an alkylene oxide adduct of an alcohol or carboxylic acid |
03/15/1983 | CA1142968A1 Stabilization of liquid paraformaldehyde |
02/22/1983 | US4374953 Method for preparing polyacetals and polyketals by emulsion polymerization |
01/25/1983 | CA1140297A1 Process for continuously polymerizing trioxane |
12/28/1982 | US4366305 Process for heat stabilizing oxymethylene copolymers |
11/03/1982 | EP0063782A1 Process for recovering trioxane |
10/26/1982 | US4356071 Thermally stable polyoxymethylene containing polymers |
10/19/1982 | US4355153 Quaternary ammonium lactamate catalyst |
10/05/1982 | US4352923 Metal chelate adsorbed on polyoxymethylene glycol as catalyst |
08/10/1982 | US4343929 Process for continuously polymerizing trioxane |
08/03/1982 | US4342680 Stabilized oxymethylene copolymer composition |
07/20/1982 | US4340720 Process for producing high-molecular polyacetals |
07/13/1982 | US4339569 Bulk polymerization, boron trifluoride catalysts |