Patents
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)
02/1994
02/22/1994US5288840 Polyoxymethylene copolymer and process for producing the copolymer
02/15/1994US5286808 Elastomeric crosslinked poly(1,3-dioxlane)
02/15/1994CA2095742A1 New fluorine-containing compounds having polyacetalic structure, and process for preparing them
02/01/1994CA1326728C Treatment and after-treatment of metal with polyphenol compounds
01/1994
01/13/1994DE4221678A1 New hydroxyalkane phosphonate(s) of poly:ol(s) - prepd. by reaction of phosphite or pyrophosphite of corresp. poly:ol, used as flame retardants
11/1993
11/23/1993US5264516 Silicon containing polyacetal copolymer and manufacturing method thereof
11/11/1993WO1993022359A1 Process for producing thermally stable polyoxymethylene copolymers and their use
11/03/1993EP0568308A2 Blow or extrusion molding product of polyoxymethylene resin and process for producing the same
10/1993
10/28/1993CA2094861A1 Blow or extrusion molding product of polyoxymethylene resin and process for producing the same
09/1993
09/28/1993US5248762 Cyclization
09/22/1993CN1076454A Process for manufacturing multisequence star or network polycondensates by di-or multi-aldenylde coupling, and polycondensates obtained
09/08/1993EP0559496A1 Process for producing polyoxymethylene copolymers
09/02/1993WO1993016977A1 Preparation and purification of poly(tetramethylene ether) formal glycols and poly(oxybutylene formal) glycols
08/1993
08/10/1993CA1321208C Method for preparation of alkyl glycolates
07/1993
07/14/1993EP0551221A1 Process for the preparation of star or network multiblock polycondensates by coupling di- or multi-adhehydes, and polycondensate thus obtained
06/1993
06/30/1993EP0548639A2 Polyacetals based on vinylethers and dihydroxy compounds and their use in detergent compositions
06/21/1993CA2084930A1 Use of polyacetals based on vinyl ethers and dihydroxy compounds in detergents and cleaners and polyacetals
05/1993
05/25/1993US5213584 Formal compounds, fuel oil additives, and fuel oil compositions
05/18/1993US5211951 Drug delivery
04/1993
04/27/1993US5206325 Mono- or polysaccharide grafted onto acetal resin
04/13/1993US5202501 Perfluoropolyethers
04/13/1993US5202480 Fluorination of acetals, ketals and orthoesters
02/1993
02/04/1993WO1993001799A1 Process for the manufacture of bioerodible poly(orthoester)s and polyacetals
01/1993
01/27/1993EP0524831A1 Process for the manufacture of bioerodible poly(ortho esters) and polyacetals
01/25/1993CA2074315A1 Process for the manufacture of bioerodible poly(ortho ester)s and polyacetals
01/19/1993CA1312979C Silicon containing polyacetal copolymer and manufacturing method thereof
01/12/1993US5179232 Process for solubilizing formaldehyde oligomers
11/1992
11/24/1992US5166313 Diamantane modified rigid-rod poly benzazole and method of manufacture
11/18/1992CA2068802A1 Thin-wall molded article of branched polyacetal resin
09/1992
09/23/1992EP0504405A1 Polyoxymethylene copolymer and production thereof
09/22/1992CA1307871C Continuous process for removing unstable components from crude oxymethylene copolymer
09/16/1992EP0503394A2 Process for preparing polyoxyalkyleneglycole monoesters of monocarboxylic acids
09/16/1992EP0503393A2 Process for preparing polyoxyalkyleneglycol monoethers of monohydric alcohols
09/16/1992EP0503377A1 Process for making micro structure having a high aspect ratio
09/03/1992DE4106355A1 Poly-glyoxylate prepn. by polymerisation of 1-4 carbon alkyl ester(s) of glyoxylic acid - in presence of phosphorus pent:oxide, used as builders in detergents
09/03/1992DE4106354A1 Polyacetale, verfahren zu ihrer herstellung und ihre verwendung in wasch- und reinigungsmitteln Acetal resins, process for their production and their use in washing and cleaning products
09/01/1992US5144005 Continuous process for removing unstable components from crude oxymethylene copolymer
08/1992
08/29/1992WO1992015629A1 Polyacetals, method for preparing them and their use in washing and cleaning agents
08/29/1992CA2101753A1 Polyacetals, method for preparing them and their use in washing and cleaning agents
08/11/1992US5137858 Catalyst composition containing monophosphines
07/1992
07/21/1992US5132341 Cationic paint binders for formulating pigment pastes for cathodically depositable electrocoating paints based on b-hydroxyalkylamines, titanium compounds and formaldehyde
07/15/1992CN1017438B Process for the preparation of acetal polymer or copolymer
06/1992
06/20/1992WO1992011303A1 Process for solubilizing formaldehyde oligomers
06/20/1992CA2098613A1 Process for solubilizing formaldehyde oligomers
06/03/1992EP0488659A1 Process for producing paraformaldehyde of high formaldehyde content
04/1992
04/22/1992CN1016348B Process for preparation of polymethanal polymer or copolymer
04/15/1992CN1060298A One-step process for after-treating molten polyformaldehyde
04/07/1992US5102951 Curable compound
04/06/1992WO1992006126A1 Polyoxymethylene copolymer and production thereof
03/1992
03/18/1992EP0475516A1 Polyoxymethylene, polyoxyethylene containing block copolymers and process for their preparation
03/18/1992EP0474875A1 Thermoplastic graft copolymer and production thereof
03/10/1992US5095061 Process to reduce propenyl polyethers in hydroxyfunctional polyethers
02/1992
02/26/1992EP0472029A1 Light-sensitive composition and process for the formation of relief pattern
02/22/1992WO1992003487A1 Process for producing cyclic polyoxymethylene
02/22/1992CA2066701A1 Process for preparing cyclic polyoxymethylene
02/20/1992DE4025959A1 Negatively-working aq. alkali-developable radiation-sensitive mixt. - contains water-insol. binder sol. in aq. alkali, cpd. forming strong acid on irradiation, and gp. condensing in presence of acid
02/19/1992EP0470956A1 Perfluoropolyethers
01/1992
01/29/1992CN1058220A Process to reduce propenyl polyethers in hydroxy-functional polyethers
01/15/1992EP0466150A1 Process to reduce propenyl polyethers in hydroxy-functional polyethers
01/14/1992US5081183 Poly(alpha-ketoester) compound and production thereof
01/07/1992US5079330 Copolymer of trioxane, another cyclic ether and one of glycidyl phenyl ether, styrene oxide, glycidyl naphthyl ether, mechanical strength
12/1991
12/10/1991US5071952 Copolymerizing trioxane and 5-iodo-6-urea-1,3-dioxepane to produce an acetal resin
12/07/1991CA2043973A1 Copolyester of branched polyacetal for sliding member
12/03/1991CA1292834C Process for preparing oxymethylene polymers using boron trifluoride in admixture with an inert gas
11/1991
11/06/1991EP0455486A1 Process for removing polyacetal binder from molded ceramic greenbodies with acid gases
11/04/1991CA2040878A1 Process for removing polyacetal binder from molded ceramic greenbodies with acid gases
10/1991
10/01/1991US5053536 Perhalogenated chlorofluoroether compounds or polyethers; lubricants
09/1991
09/05/1991WO1991013108A1 Thermoplastic graft copolymer and production thereof
09/03/1991US5045607 Acetal polymer blends
08/1991
08/27/1991US5043398 Grafting of functional compounds onto functional oxymethylene polymer backbones, with diisocyanate coupling agents, and the graft polymers thereof
08/27/1991US5043121 Depolymerization
08/21/1991EP0442362A2 Process for the preparation of cationic laquer/binders for the formulation of pigment/pastes for electrodepositable, cathodic laquers
08/13/1991US5039770 Treatment and after-treatment of metal with polyphenol compounds
08/13/1991CA2036063A1 Process for the production of cationic paint binders for formulating pigment pastes for cathodically depositable electrocoating paints
07/1991
07/23/1991US5034499 Polymerization of trioxane with 5,6-epoxy-1,3-dioxepane for toughness and heat resistance
07/17/1991EP0436669A1 Perfluoroacetal and perfluoroketal compounds and use thereof in thermal shock testing
07/17/1991EP0436629A1 Fluorination of acetals, ketals and orthoesters
06/1991
06/05/1991EP0429672A1 Acetal copolymer and method of producing the same
05/1991
05/22/1991EP0427874A1 Polyacetal copolymer and composition thereof
04/1991
04/23/1991US5010172 Polymerization of carbon monoxide/olefin with tertiary monophosphine or secondary monophosphine oxide
04/17/1991EP0422439A2 Aminomethanephosphonic acid esters, process for their preparation and their use
04/08/1991CA2027078A1 Aminomethane phosphonic acid aryl esters and a process for their preparation
04/02/1991US5004798 Linear polymer of increased functionality by having a protected pendant hydroxyl group
03/1991
03/27/1991CN1050211A Preparation method for oil well cement anti-drag agent
03/27/1991CN1050201A Making method for polymer formol with high content of formol
02/1991
02/19/1991US4994513 Polyketone copolymer composition comprising amide or aluminum compound
02/13/1991EP0412783A2 Polyoxymethylene multi-copolymer and its resin composition
02/13/1991EP0412192A1 Method for the production of granular paraformaldehyde
02/07/1991DE3925966A1 Para-formaldehyde] granules prodn.
01/1991
01/30/1991CN1011412B Process for preparing oxymethylene polymer using boron trifluoride in admixture with an inert gas
01/29/1991US4988397 Dinitroalkylformal plasticizing of explosives
01/23/1991EP0409464A2 Acetal polymer compositions of high impact strength
01/22/1991CA1279434C Oxyethylenic copolymers, and process for their preparation
01/21/1991CA2020375A1 Acetal polymer compositions of high impact strength
01/16/1991EP0407950A1 Formal compounds, fuel oil additives, and fuel oil compositions
01/08/1991US4983708 Novel polyacetal copolymers of trioxane and glycidyl ester derivatives
12/1990
12/20/1990WO1990015842A1 Acetal copolymer and method of producing the same
12/20/1990CA2034505A1 Acetal copolymer and process for producing same
12/09/1990WO1990015088A1 Polyacetal copolymer and composition thereof
12/05/1990EP0400827A2 Grafting of amine functional polymers onto functionalized oxymethylene polymers and the resulting graft polymers thereof
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