ClassID:

99483

C08G65/2696 - CPC Classification

Classification description:

Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the process or apparatus used

Recent Application in this class:
#1
20260132253
2026-05-14

Shell-and-Tube Reactor for Synthesizing Polycarbonate Polyether Polyols

#2
20260103564
2026-04-16

PERFLUOROPOLYETHER POLYMERS

#3
20250353956
2025-11-20

METHOD FOR THE MANUFACTURE OF A POLYETHER DIOL PRODUCT

#4
20250340698
2025-11-06

PROCESSES AND PRODUCTION PLANTS FOR PRODUCING POLYOLS

#5
20250136757
2025-05-01

A PROCESS FOR OBTAINING A POLYETHER POLYOL WITH A BIMODAL MOLECULAR WEIGHT DISTRIBUTION, FOR THE PRODUCTION OF FLEXIBLE POLYURETHANE FOAMS

#6
20250115711
2025-04-10

POLYETHER POLYMERIZATION PROCESS

#7
20250002648
2025-01-02

METHOD FOR PRODUCING THIOL GROUP-CONTAINING POLYETHER POLYMER

#8
20240191025
2024-06-13

NOVEL POLYETHERS ON THE BASIS OF 2,3-EPOXYBUTANE AND PROCESS FOR THE PREPARATION THEREOF

#9
20230365749
2023-11-16

NOVEL ANTIFOAMING AGENTS

#10
20230338933
2023-10-26

MIXED-ACID MODIFIED ZINC-COBALT DOUBLE METAL CYANIDE CATALYST AND PREPARATION METHOD THEREOF

#11
20230312823
2023-10-05

LOW FOAMING HYDRAULIC FLUIDS HAVING BIODEGRADABLE POLYALKYLENE GLYCOL RHEOLOGY MODIFIERS USEFUL IN SUBSEA APPLICATIONS

#12
20230303768
2023-09-28

High-molecular weight allyl alcohol polyoxyethylene polyoxypropylene ether and preparation method

#13
20230203400
2023-06-29

MIXED HYDROXYETHER COMPOUNDS, PROCESS FOR MAKING SUCH COMPOUNDS, AND THEIR USE

#14
20230174713
2023-06-08

COPOLYMERS OF TETRAFLUOROETHYENE OXIDE AND HEXAFLUOROPROPYLENE OXIDE USEFUL AS LUBRICANTS

#15
20230151150
2023-05-18

Compounds

#16
20230147479
2023-05-11

PROCESSES AND PRODUCTION PLANTS FOR PRODUCING POLYOLS

#17
20230131312
2023-04-27

SYNTHESIS METHOD OF POLYETHER FOR LOW-MODULUS SEALANT

#18
20230118672
2023-04-20

SUBSTITUTED POLY(ALKYLENE OXIDE) AND SURFACTANT COMPOSITION

#19
20230097116
2023-03-30

METHOD FOR PREPARING HYBRID-TYPE FLUORINE-BASED NONIONIC SURFACTANT

#20
20230069332
2023-03-02

PROCESS FOR PRODUCING POLYETHER CARBONATE POLYOLS

#21
20230063141
2023-03-02

Vicinal diol ether derivatives of polyether polymers

#22
20220289897
2022-09-15

In-situ formed polyols, a process for their preparation, foams prepared from these in-situ formed polyols and a process for their preparation

#23
20220288652
2022-09-15

Methods for removing amine contaminants from equipment used in the production of polyether polyols

#24
20220267505
2022-08-25

ISOPROPYLIDENEDIPHENOL-BASED POLYETHER POLYOLS, PROCESSES FOR THEIR PRODUCTION, AND FOAMS PRODUCED THEREFROM

#25
20220227928
2022-07-21

METHOD FOR PREPARING POLYETHER CARBONATE POLYOLS

#26
20220204691
2022-06-30

Process for the continuous production of polyoxyalkylene polyols

#27
20220162379
2022-05-26

PROCESS AND SYSTEM FOR PRODUCING LOW-ODOR POLYETHER POLYOL

#28
20220056206
2022-02-24

Compounds

#29
20220049052
2022-02-17

Polyether polymerization process

#30
20220033580
2022-02-03

Method for preparing a benzophenone derivative

#31
20220017682
2022-01-20

Macromonomeric stabilizer, preparation method thereof, and method for preparing polymeric polyol

#32
20210213431
2021-07-15

MIXED-ACID MODIFIED ZINC-COBALT DOUBLE METAL CYANIDE CATALYST AND PREPARATION METHOD THEREOF

#33
20210189290
2021-06-24

ALKOXYLATED PHENOL DERIVATIVES

#34
20210032412
2021-02-04

ELECTROCHEMICALLY ENGINEERED SURFACE OF HYDROGELS, PARTICULARLY PEG HYDROGELS, FOR ENHANCED CELLULAR PENETRATION

#35
20200391168
2020-12-17

Continuous production method for aromatic polymer and continuous production apparatus for aromatic polymer

#36
20200332058
2020-10-22

PROCESS FOR THE CONTINUOUS PRODUCTION OF POLYETHER POLYOLS

#37
20200283573
2020-09-10

Flame-retardant polyether polyol as well as preparation method and application thereof

#38
20200255592
2020-08-13

Continuous process for making polyether polyols

#39
20200255580
2020-08-13

High resiliency polyurethane foams made with high functionality, high equivalent weight polyols with mainly secondary hydroxyl groups

#40
20200207912
2020-07-02

PROCESS FOR THE CONTINUOUS PRODUCTION OF POLYETHER POLYOLS

#41
20200199295
2020-06-25

Process for preparing polyoxyalkylene polyols by the continuous addition of starter

#42
20200181326
2020-06-11

Process for making polyether diols

#43
20200062890
2020-02-27

Etheramines prepared from a mixture of two or more multifunctional alcohol initiators, and their use as curatives or intermediates for polymer synthesis

#44
20190322801
2019-10-24

Method for producing polyether carbonate polyols

#45
20190255184
2019-08-22

Inhibitor of ATP-dependent cellular reverse transporters and method for producing same

#46
20190202983
2019-07-04

Alkoxylation process using tubular reactor

#47
20190002634
2019-01-03

Process for the preparation of polyether polyols

#48
20180244842
2018-08-30

Method for producing high molecular weight polyoxyalkylene polyols

#49
20180237587
2018-08-23

Process for preparing polyether polyol using DMC catalyst and continuous addition of starter

#50
20180237578
2018-08-23

Polyol compositions, a process for the production of these polyol compositions, and their use in the production of open celled polyurethane foams having high airflow

#51
20180162995
2018-06-14

Continuous process for making polyether polyols having high polymerized ethylene oxide content using a double metal cyanide catalyst complex and a magnesium, group 3—group 15 metal or lanthanide series metal compound

#52
20180155485
2018-06-07

Method for making propylene oxide/ethylene oxide copolymers using double metal cyanide catalysts, and copolymers so made

#53
20180036704
2018-02-08

Systems and processes for producing polyether polyols

#54
20170362164
2017-12-21

Process for preparing a polyetheramine

#55
20170321005
2017-11-09

Method for producing polyether carbonate polyols

#56
20170247509
2017-08-31

Method for producing poly(alkylene carbonate)polyol

#57
20170240702
2017-08-24

Dual catalyst system for high primary hydroxyl polyols

#58
20170233517
2017-08-17

Amphiphilic graft copolymers

#59
20170218134
2017-08-03

Amphiphilic star-like polyether

#60
20170198092
2017-07-13

Method for the production of polyether carbonate polyols and device therefor

#61
20170174834
2017-06-22

Process for the production of low molecular weight polyoxyalkylene polyols

#62
20170158804
2017-06-08

Method for producing polyether carbonate polyols

#63
20170037183
2017-02-09

Process for the continuous production of polyether polyols

#64
20160368847
2016-12-22

Process for producing alkylene oxide adduct and alkylene oxide adduct

#65
20160362518
2016-12-15

Method for producing polyether ester carbonate polyols

#66
20160326317
2016-11-10

Multi-arm polyethylene glycol derivative, intermediate thereof, and method for producing same

#67
20160319067
2016-11-03

Copolyether ester polyol process

#68
20160264730
2016-09-15

Production method of medical polyoxypropylene polymer and production method of medical polyoxypropylene/polyoxyethylene block copolymer

#69
20160230197
2016-08-11

Method, device and system for spatially controlling the formation of a hydrogel electrochemically

#70
20160215091
2016-07-28

Method for making poly(butylene oxide) polyols

#71
20160194444
2016-07-07

Higher functional polyether carbonate polyols obtained using branching molecules

#72
20160185903
2016-06-30

Low viscosity polyether carbonate polyols having side chains

#73
20160168335
2016-06-16

ALKOXYLATED HUMUS MATERIAL COMPOSITIONS AND METHODS OF MAKING SAME

#74
20150361207
2015-12-17

Amphiphilic graft copolymers

#75
20150329669
2015-11-19

Process for preparing a macromonomer

#76
20150329453
2015-11-19

Process for the alkoxylation of (per) fluoropolyether alcohols

#77
20150299374
2015-10-22

METHOD FOR PRODUCING POLYETHER CARBONATE POLYOLS

#78
20150259475
2015-09-17

Polyether carbonate polyol production method

#79
20150166724
2015-06-18

Process for preparing high molecular weight polymers by polymerizing epoxide monomers

#80
20150073155
2015-03-12

Multi-arm polyethylene glycol derivative, intermediate thereof, and method for producing same

#81
20140275633
2014-09-18

Continuous process for the production of low molecular weight polyethers with a DMC catalyst

#82
20140206907
2014-07-24

METHOD FOR PREVENTING PRESSURE BUILD UP IN A CATALYST SEPARATION SYSTEM

#83
20140142344
2014-05-22

Process for preparing high molecular weight polyether polyols

#84
20140024733
2014-01-23

Process for the in situ production of polyether polyols based on renewable materials and their use in the production of flexible polyurethane foams

#85
20130345476
2013-12-26

Process for the production of low molecular weight impact polyethers

#86
20130338331
2013-12-19

Method for the preparation of polyether polyols

#87
20130289315
2013-10-31

Process and apparatus for continuous high temperature short-time alkoxylation (ethoxylation, propoxylation) of chemical substances with active hydrogen atoms

#88
20130211042
2013-08-15

Process for the production of polyether carbonate polyols

#89
20130204047
2013-08-08

Method for producing polyether polyols

#90
20130190462
2013-07-25

Process for preparing polyether carbonate polyols with double metal cyanide catalysts and in the presence of metal salts

#91
20130178601
2013-07-11

Process for preparing epoxy resins

#92
20130131389
2013-05-23

Process for preparing polyether alcohols

#93
20130059936
2013-03-07

POLYOXYALKYLENE POLYOL, POLYMER-DISPERSED POLYOL, FLEXIBLE POLYURETHANE FOAM AND PRODUCTION PROCESS THEREOF

#94
20130046116
2013-02-21

INTEGRATED COPOLYETHER GLYCOL MANUFACTURING PROCESS

#95
20130030223
2013-01-31

Method of making alkylene glycols

#96
20130028803
2013-01-31

Method of making alkylene glycols

#97
20130023700
2013-01-24

Process for a continuous production of polyetherols

#98
20120283483
2012-11-08

Method for continuously producing low equivalent weight polyols using double metal cyanide catalysts

#99
20120202963
2012-08-09

Polyether and its production process

#100
20120172537
2012-07-05

PROCESS FOR PRODUCING POLYETHER

#101
20120130134
2012-05-24

PROCESS FOR THE PREPARATION OF POLYETHEROLS FROM ALKYLENE OXIDES

#102
20120123170
2012-05-17

METHOD FOR PRODUCING NONIONIC SURFACTANT

#103
20120035381
2012-02-09

Process for preparing allyl alcohol alkoxylates

#104
20120016049
2012-01-19

Polyoxyalkylene polyol or monool and polyurethane resin

#105
20110230581
2011-09-22

PROCESS FOR THE PRODUCTION OF POLYETHER POLYOLS WITH A HIGH ETHYLENE OXIDE CONTENT

#106
20110224397
2011-09-15

PROCESS FOR PREPARING POLYOLS USING BASE CATALYSIS

#107
20110224396
2011-09-15

Process for preparing polyether polyols

#108
20110218349
2011-09-08

Method for Producing Alkylene Oxide Addition Products

#109
20110218322
2011-09-08

Polyalkylene glycol derivative and process for producing same

#110
20110190519
2011-08-04

Ambient temperature purification of alkylene oxides

#111
20110105802
2011-05-05

Continuous loop flow process for polyether polyol production

#112
20110077434
2011-03-31

PROCESS FOR PRODUCING POLYOXYALKYLENE ALKYL ETHERS

#113
20110028682
2011-02-03

Process for producing polyalkylene oxide

#114
20100324340
2010-12-23

SHORT CHAIN POLYETHER POLYOLS PREPARED FROM ULTRA-LOW WATER-CONTENT STARTERS VIA DMC CATALYSIS

#115
20100261870
2010-10-14

METHOD FOR PRODUCING POLYETHER ALCOHOLS

#116
20100256423
2010-10-07

Method for producing polyoxyalkylene derivative and polyoxyalkylene derivative

#117
20100240864
2010-09-23

Method for changing the predefined mean molecular weight Mduring the continuous production of polytetrahydrofuranes or THF copolymers

#118
20100234647
2010-09-16

Starter feed stream acidification in DMC-catalyzed process

#119
20100222615
2010-09-02

Method of making alkylene glycols

#120
20100216968
2010-08-26

Process for the preparation of polyether alcohols from unsaturated starters having active hydrogen atoms

#121
20100099788
2010-04-22

Process for the preparation of polyether ester polyols

#122
20100056753
2010-03-04

Method of producing a poly (ethylene oxide) copolymerised with at least one other alkylene oxide

#123
20100041923
2010-02-18

Method for producing alkylene oxide addition products

#124
20090326283
2009-12-31

Method and device for the production of alkylene oxide addition products

#125
20090306435
2009-12-10

Method of preparing enhanced reactive vegetable oils

#126
20090292147
2009-11-26

PROCESS FOR THE CONTINUOUS PRODUCTION OF POLYETHER ALCOHOLS

#127
20090292084
2009-11-26

Process for alkoxylation with DMC catalysts in a loop reactor with ejector

#128
20090247774
2009-10-01

Method of preparing enhanced reactive vegetable oils

#129
20090203874
2009-08-13

Method for producing polyether polyols

#130
20090023889
2009-01-22

PROCESS FOR PRODUCING ETHER POLYMER

#131
20090005533
2009-01-01

Method for Producing Polyether Alcohols

#132
20080255394
2008-10-16

High productivity process for alkylphenol ethoxylates

#133
20080255378
2008-10-16

High productivity process for non-phenolic ethoxylates

#134
20080221281
2008-09-11

CONTINUOUS PROCESS AND SYSTEM OF PRODUCING POLYETHER POLYOLS

#135
20080214778
2008-09-04

Method for producing polyether alcohols

#136
20080200600
2008-08-21

Polymer-Containing Composition, its Preparation and Use

#137
20080171833
2008-07-17

Viscosity reducer for highly viscous polyols

#138
20080167501
2008-07-10

High productivity alkoxylation processes

#139
20080161509
2008-07-03

Method for production of polyether alcohols

#140
20080132729
2008-06-05

Continuous process for the production of ethoxylates

#141
20080132728
2008-06-05

Continuous processes for the production of alkylphenol ethoxylates

#142
20080125569
2008-05-29

Method for Alkoxylating Active Hydrogen Containing Compounds and the Alkoxylated Compounds Made Therefrom

#143
20080045667
2008-02-21

Process for preparing polyoxyalkylene glycol ethers using block polymers as demulsifiers

#144
20080039666
2008-02-14

Composition Comprising Alcohol Alkoxylates And Their Use

#145
20080021191
2008-01-24

High water content tolerant process for the production of polyethers

#146
20070282117
2007-12-06

Method of preparing enhanced reactive vegetable oils

#147
20070282079
2007-12-06

Alkoxylations in ketone solvents

#148
20070282028
2007-12-06

Method for producing polyurethane-soft foam materials

#149
20070185307
2007-08-09

Reduced oligomer concentration in high purity polyalkylene glycols

#150
20070173632
2007-07-26

Reacting alkylene oxide with active hydrogen initiators to produce polyoxyalkylenes

#151
20070173631
2007-07-26

Oxytetramethylene glycol copolymer and method for producing the same

#152
20070173628
2007-07-26

Polyether alcohols and method for the production of polyether alcohols for polyurethane synthesis

#153
20070149826
2007-06-28

METHOD FOR PRODUCING A REACTION PRODUCT

#154
20070129577
2007-06-07

Method for producing polyether alcohols

#155
20070123725
2007-05-31

Process for the production of polyols based on natural oils

#156
20070066767
2007-03-22

Polyalkylene glycols

#157
20060258832
2006-11-16

Device for producing polyether alcohols

#158
20060183882
2006-08-17

CONTINUOUS PROCESS FOR PREPARATION OF POLYETHER POLYOLS

#159
20060155152
2006-07-13

Equilibrium reaction and gas/liquid reaction in a loop reactor

#160
20060155151
2006-07-13

Continuous process and system of producing polyether polyols

#161
20060116275
2006-06-01

Process for removing and regenerating a double metal cyanide (dmc) catalyst from a polymer polyol

#162
20060025324
2006-02-02

Method of using a defoamer

#163
20050267287
2005-12-01

Polyether polyols containing pendant amine groups and a process for their preparation

#164
20050245628
2005-11-03

Alkoxylations in microstructured capillary reactors

#165
20050240063
2005-10-27

Process for preparing reactive polyether polyols having an ethylene oxide end block

#166
20050209438
2005-09-22

Starter feed stream acidification in DMC-catalyzed process

#167
20050197485
2005-09-08

Process for production of ethylene oxide copolymer

#168
20050177005
2005-08-11

Method for producing polyether alcohols

#169
20050159627
2005-07-21

Method for activating double metallocyanide-compounds

#170
20050107643
2005-05-19

Preparation of polyether alcohols

#171
20050096488
2005-05-05

Single reactor synthesis of KOH-capped polyols based on DMC-synthesized intermediates

#172
20050080298
2005-04-14

Production processes for alkylene oxide addition product and its derivatives