Patents
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)
04/1994
04/05/1994US5300683 Fluorination of acetals, ketals and orthoesters
03/1994
03/03/1994WO1994004585A1 Process for producing polyacetals, their use and the polyacetals produced
03/03/1994DE4228159A1 Verfahren zur Herstellung von Polyacetalen, ihre Verwendung und neue Polyacetale Process for the preparation of polyacetals, their use and new polyacetals
03/03/1994CA2140752A1 Process for producing polyacetals, their use and the polyacetals produced
02/1994
02/03/1994WO1994002534A1 Oxirane and dioxolane copolymers, process for their preparation and ionic conduction materials containing same
02/03/1994CA2118946A1 Oxirane and dioxolane copolymers; process for preparing them and ion conductive materials containing the same
12/1993
12/08/1993EP0572545A1 Purification of cyclic ketene acetals.
11/1993
11/30/1993US5266675 Propellents, explosives, acetal resins
10/1993
10/19/1993US5254744 Preparation and purification of poly(tetramethylene ether) formal glycols and poly(oxybutylene formal) glycols
10/14/1993WO1993020127A1 Ortho polymers having improved stability and bioerosion behavior
05/1993
05/18/1993US5211951 Drug delivery
04/1993
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
12/1992
12/15/1992US5171769 Molding materials; protective coatings, dielectric for electronics
11/1992
11/24/1992US5166224 Vulcanizable non-crystalline acetal elastomers
11/17/1992US5164516 Intermediates for biodegradable polyesters
08/1992
08/15/1992WO1992014723A1 Purification of cyclic ketene acetals
08/15/1992CA2100581A1 Purification of cyclic ketene acetals
06/1992
06/30/1992CA1304372C Oligomeric benzil ketals and their use as photoinitiators
06/23/1992US5124417 Comprising an organic onium cation and a nonnucleophilic, partially-fluorinated hydrocarbylsulfonato metallate; high-molecular-weight polymers from epoxides, tetrahydrofurans, oxazolines, vinyls, lactones, etc.
03/1992
03/18/1992EP0475516A1 Polyoxymethylene, polyoxyethylene containing block copolymers and process for their preparation
03/10/1992US5095044 Odorless, discoloration inhibition
01/1992
01/28/1992US5084586 Novel initiators for cationic polymerization
12/1991
12/24/1991US5075389 α-(p-phenyl-glycidyl ether)-omega-chloro polyolefin macromonomers and copolymers thereof
12/10/1991US5071952 Copolymerizing trioxane and 5-iodo-6-urea-1,3-dioxepane to produce an acetal resin
10/1991
10/29/1991CA1291486C Quaternary ammonium salts possessing antimicrobial activity and methods for preparation and use thereof
10/01/1991US5053536 Perhalogenated chlorofluoroether compounds or polyethers; lubricants
09/1991
09/18/1991CN1054604A Container made from polymeric material
09/11/1991EP0445865A2 Container made from polymeric material
09/11/1991EP0445609A2 Mixed condensation products
09/06/1991CA2037497A1 Container made from polymeric material
08/1991
08/21/1991EP0442635A1 Novel initiators for cationic polymerization
08/20/1991US5041505 Non-crystalline acetal copolymer elastomers
08/13/1991CA2034168A1 Initiators for cationic polymerization
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
04/1991
04/04/1991WO1991004285A1 Non-crystalline acetal copolymer elastomers
03/1991
03/12/1991CA1281337C Copolymer of difluoromethylene oxide and tetrafluoroethyleneoxide
02/1991
02/12/1991CA2022218A1 Preparation of polyhemiacetals
02/05/1991CA1279875C Liquid sterilising composition
01/1991
01/30/1991EP0248054B1 Copolymer of difluoromethylene oxide and tetrafluoroethylene oxide
12/1990
12/18/1990CA1278139C Polyacetals, preparation thereof from dialdehydes and polyolcarboxylic acids, and use of same
12/04/1990US4975519 Novel polyacetal terpolymers of trioxane and alpha, alpha- and alpha, beta-isomers of glycerol formal and functional derivatives thereof
11/1990
11/28/1990CN1047307A Novel polyacetal terpolymers of trioxane and alpha, alpha-and alpha, beta-isomers of glycerol formal and functional derivatives thereof
11/22/1990EP0398585A2 Novel polyacetal terpolymers of trioxane and alpha, alpha-and alpha, beta-isomers of glycerol formal and functional derivatives thereof
11/14/1990EP0397346A2 Aminated formaldehyde coupled polyols for curing epoxy resins
11/12/1990CA2016335A1 Polyacetal terpolymers of trioxane and alpha, alpha-and alpha, beta-isomers of glycerol formal and functional derivatives thereof
10/1990
10/24/1990CN1046339A Acetal copolymers with backbone double bonds
09/1990
09/05/1990EP0385949A2 Compositions
08/1990
08/21/1990US4950795 Oligomeric benzil ketals and their use as photoinitiators
07/1990
07/31/1990CA1272330A1 Preparation of aqueous ketone resin or ketone/aldehyde resin dispersions, and production of surface-coating binders
06/1990
06/05/1990USH786 Copolyformals of 1,2-bis(2-hydroxyethyl)-1,2-dicarbadodecaborane and polynitroalkyl diols
06/05/1990USH784 Copolyformals of 1,2-bis(2-hydroxyethyl)-1,2-dicarbadodecaborane(12) and polyfluoroalkyl diols
04/1990
04/05/1990WO1990003410A1 Fluorination of acetals, ketals and orthoesters
04/05/1990WO1990003357A1 Perfluoroacetal and perfluoroketal compounds and use thereof in thermal shock testing
03/1990
03/06/1990US4906728 Acetal copolymers with backbone bromo functional groups
02/1990
02/14/1990CN1039600A Acetal copolymers with backbone bromo functional groups
02/13/1990US4900783 Acetal copolymers with backbone double bonds and graft copolymers thereof
02/06/1990USH730 Hydroxy-terminated copolyformals of fluorodiols with nitrodiols
02/06/1990US4898928 Polyacetal and polyketal hydrogels formed from acetals or ketals and polyols
12/1989
12/13/1989CN1037910A Acetal copolymers with backbone epoxide functional groups
12/13/1989CN1037900A Acetal copolymers with backbone isocyanate functional groups
11/1989
11/08/1989EP0340926A2 Acetal copolymers with backbone isocyanate functional groups
10/1989
10/18/1989EP0337756A2 Acetal copolymers with backbone amine groups
10/18/1989EP0337755A2 Acetal copolymers with backbone double bonds
10/18/1989EP0337754A2 Process for the preparation of acetal copolymers with backbone bromo functional groups
04/1989
04/04/1989US4818288 A condensation product of ketone aldehyder, acid
03/1989
03/28/1989US4816553 Polyacetals, preparation thereof from dialdehydes and polyolcarboxylic acids, and use of same
03/01/1989EP0304886A2 Oligomer benzil ketals and their use as photoinitiators
12/1988
12/28/1988CA1247653A Oligomeric formal diols of copolymer glycols
12/28/1988CA1247652A Oligomeric formal diols of poly(tetramethylene ether) glycol and polyurethanes prepared therefrom
08/1988
08/31/1988EP0280223A2 Polyacetals, process for their fabrication from dialdehydes and polyolacids, and use of polyacetals
07/1988
07/26/1988US4760198 Perfluoropolyethers
05/1988
05/31/1988US4748279 Nonionic surfactants, glutaraldehyde, triethylene glycol
04/1988
04/26/1988US4740628 2,4,4,5,5,6,6-heptafluoro-2-trifluoromethyl-3-oxaheptane-1,7-diol polyformal and method of preparation
04/26/1988US4740579 Controlling ratios of 1,3-dioxa-5,5,6,6,7,7-hexafluorocyclooctane monomer, 2,2,3,3,4,4-hexafluoropentane-1,5-diol and trifluoromethyl sulfonic acid catalyst
03/1988
03/15/1988US4731435 From high molecular weight cyclic compounds and low molecular weight compounds
03/15/1988US4731434 Alkyl aryl ketone/formaldehyde resin having high softening point
02/1988
02/02/1988CA1232125A1 Dispersion agents for salt-containing systems
01/1988
01/07/1988EP0251743A2 Liquid sterilising composition
12/1987
12/09/1987EP0248054A1 Copolymer of difluoromethylene oxide and tetrafluoroethylene oxide.
05/1987
05/21/1987WO1987002992A1 Copolymer of difluoromethylene oxide and tetrafluoroethylene oxide
04/1987
04/14/1987US4657593 Modifying surface tension of finely-divided materials in a liquid
03/1987
03/03/1987CA1218788A1 Co-condensation products of ketone-aldehyde resins
02/1987
02/17/1987US4644028 Preparation of aqueous ketone resin or ketone/aldehyde resin dispersions, and production of surface-coating binders
09/1986
09/23/1986CA1211752A1 Monomers and polyketal polymers from such monomers
08/1986
08/19/1986CA1210168A1 Use of polycondensation products of acrolein and formaldehyde for removing hydrogen sulphide and iron sulphide in aqueous systems
07/1986
07/02/1986EP0185898A2 Tensioactive polyglycol ether acetal
06/1986
06/17/1986CA1206289A1 Liquid thermosetting compositions containing hemiformals of phenol
05/1986
05/20/1986CA1204777A1 Acetal group-containing non-ionic surfactants
04/1986
04/29/1986US4585853 Acid group-containing hydrophilic co-condensation products of ketone-aldehyde resins
02/1986
02/26/1986EP0172656A2 Polymeric quaternary ammonium salts possessing antimicrobial activity and methods for preparation and use thereof
01/1986
01/28/1986US4567302 Trioxane and 2-alkyl-2-nitro-1,3-propanediol
01/07/1986US4563493 Water and oil repellents, release agents
12/1985
12/24/1985CA1198449A1 Surface-active compounds, a process for their preparation and their use
12/18/1985EP0164425A1 Surface active polyglycoletheracetals
10/1985
10/29/1985CA1196022A1 Hemi-formals of methylolated phenols
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