ClassID:

92120

C07C67/62 - CPC Classification

Classification description:

Preparation of carboxylic acid esters; Separation; Purification; Stabilisation; Use of additives Use of additives, e.g. for stabilisation

Recent Application in this class:
#1
20250282698
2025-09-11

ANTIFOULANT COMPOSITIONS FOR HIGH-SEVERITY PROCESSING OF VINYLIC MONOMER STREAMS

#2
20250257026
2025-08-14

CONTINUOUS METHOD FOR PRODUCING N-BUTYL(METH)ACRYLATE INCLUDING A CATALYST RECIRCULATION PROCESS

#3
20250250223
2025-08-07

ESTER COMPOUND-CONTAINING COMPOSITION, METHOD FOR PRODUCING SAME, POLYMERIZABLE COMPOSITION, (METH)ACRYLIC POLYMER, AND METHOD FOR PRODUCING SAME

#4
20250250221
2025-08-07

ESTER-COMPOUND-CONTAINING COMPOSITION AND METHOD FOR PRODUCING SAME, POLYMERIZABLE COMPOSITION, AND (METH)ACRYLIC POLYMER AND METHOD FOR PRODUCING SAME

#5
20250236582
2025-07-24

ESTER-COMPOUND-CONTAINING COMPOSITION AND METHOD FOR PRODUCING SAME, POLYMERIZABLE COMPOSITION, AND METHOD FOR PRODUCING (METH)ACRYLIC POLYMER

#6
20250230123
2025-07-17

METHOD OF REMOVING WATER FROM MIXTURE OF PGME, PGMEA, AND WATER

#7
20250197341
2025-06-19

METHOD FOR INHIBITING CRYSTALLISATION

#8
20250136781
2025-05-01

METHOD FOR RECYCLING POLYESTER BLEND FABRIC

#9
20240262780
2024-08-08

PREPARATION OF AN INTERMEDIATE IN THE SYNTHESIS OF 2-CYCLODODECYL-1-PROPANOL

#10
20240150275
2024-05-09

SYNERGISTIC ANTIFOULANT COMPOSITIONS AND METHODS OF USING THE SAME

#11
20240059643
2024-02-22

METHYL METHACRYLATE-CONTAINING COMPOSITION AND METHYL METHACRYLATE POLYMER PRODUCTION METHOD

#12
20240059642
2024-02-22

METHYL METHACRYLATE-CONTAINING COMPOSITION AND METHOD FOR PRODUCING METHYL METHACRYLATE POLYMER

#13
20230312440
2023-10-05

ANTIFOULANT COMPOSITIONS FOR HIGH-SEVERITY PROCESSING OF VINYLIC MONOMER STREAMS

#14
20230242472
2023-08-03

POLYMERIZATION INHIBITORS

#15
20230183164
2023-06-15

Synthesis of Vinyl Cyclobutyl Intermediates

#16
20220388942
2022-12-08

Process for purifying methyl methacrylate of low-boiling components

#17
20220259134
2022-08-18

Stable formulations of 1-Z-bromoalk-1-ene compounds and use thereof in the manufacture of pheromones

#18
20210317065
2021-10-14

Method for purifying polymerizable fluoromonomer by distillation

#19
20210122699
2021-04-29

Methods for manufacturing and decolorizing dioctyl terephthalate

#20
20210017100
2021-01-21

Organic reactions carried out in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose

#21
20200407309
2020-12-31

Methods for producing (meth)acrylic acid norbornyl esters

#22
20200317601
2020-10-08

System for continuously purifying reaction product of esterification

#23
20200207694
2020-07-02

Fluorination of acrylate esters and derivatives

#24
20200199048
2020-06-25

Hydroxylated quinone antipolymerants and methods of using

#25
20200148610
2020-05-14

Organic reactions carried out in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose

#26
20200031752
2020-01-30

FLUORINATION OF ACRYLATE ESTERS AND DERIVATIVES

#27
20190345093
2019-11-14

Methods of using N-oxyl polymerization inhibitor in a wash settler for preparing methyl methacrylate

#28
20190263746
2019-08-29

Method for producing α-fluoro acrylic acid ester, and composition containing highly-pure fluorocyclopropane derivative, and composition containing highly-pure α-fluoro acrylic acid ester

#29
20190241496
2019-08-08

Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes

#30
20190161428
2019-05-30

Fluorination of acrylate esters and derivatives

#31
20190084912
2019-03-21

PROCESS FOR PRODUCING ACRYLIC ACIDS AND ACRYLATES

#32
20190023642
2019-01-24

Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes

#33
20190023641
2019-01-24

Use of polymerization inhibitor compositions

#34
20190002389
2019-01-03

Production of tert-butyl esters of ethylenically unsaturated carboxylic acids

#35
20180258014
2018-09-13

Polymerization inhibitor compositions

#36
20180201569
2018-07-19

Heterogeneous catalyst for preparing acrylic acid, and acrylic acid preparation method using same

#37
20180171103
2018-06-21

Plasticizer composition and resin composition including the same

#38
20180163018
2018-06-14

Plasticizer composition and resin composition including the same

#39
20180155268
2018-06-07

Production method of highly unsaturated fatty acid ethyl ester

#40
20180148664
2018-05-31

Production method of highly unsaturated fatty acid with high purity/high yield

#41
20180134648
2018-05-17

Composition containing acrylic acid derivative, and method for stabilizing acrylic acid derivative

#42
20180099922
2018-04-12

Composition

#43
20180099918
2018-04-12

Fluorination of acrylate esters and derivatives

#44
20180093940
2018-04-05

Acrylic acid derivative-containing composition, and method for stabilizing acrylic acid derivative

#45
20170369458
2017-12-28

Method for prevention of premature polymerization

#46
20170217850
2017-08-03

ORGANIC REACTIONS CARRIED OUT IN AQUEOUS SOLUTION IN THE PRESENCE OF A HYDROXYALKYL(ALKYL)CELLULOSE OR AN ALKYLCELLULOSE

#47
20170158604
2017-06-08

Production intermediate of polymerizable compound, production method for same, composition, and stabilization method

#48
20170057902
2017-03-02

Method for producing halogenated acrylic acid derivative

#49
20170036985
2017-02-09

Fluorination of acrylate esters and derivatives

#50
20170022136
2017-01-26

Phenyl (meth)acrylate production method and phenyl (meth)acrylate composition

#51
20160311948
2016-10-27

PROCESS FOR THE POLYMERIZATION OF DIACRYLATE-SUBSTITUTED HALOGENATED AROMATIC MONOMERS

#52
20160311752
2016-10-27

Process for preparing vinyl acetate with inhibited by-product formation

#53
20160297738
2016-10-13

Method for producing methacrylated benzophenones

#54
20160289159
2016-10-06

Preparation of tert-butyl esters of aliphatic carboxylic acids

#55
20160280673
2016-09-29

Method for prevention of premature polymerization

#56
20160280629
2016-09-29

HYDROGENATION METHOD OF PHTHALATE COMPOUND

#57
20160244398
2016-08-25

Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes

#58
20160244396
2016-08-25

Phenyl (meth)acrylate production method and phenyl (meth)acrylate composition

#59
20160207870
2016-07-21

PREPARATION OF METHYL METHACRYLAE VIA AN OXIDATIVE ESTERIFICATION PROCESS

#60
20160168062
2016-06-16

Process for depolymerization of lignin

#61
20160159728
2016-06-09

Preparation of methyl methacrylate via an oxidative esterification process

#62
20160159725
2016-06-09

Method for continuous production of light acrylates by esterification of a raw ester-grade acrylic acid

#63
20160083673
2016-03-24

Methods for producing oil formulations by means of certain carbodiimides

#64
20150313817
2015-11-05

Composition of menthol and menthyl lactate, its preparation and its use as a cooling, flavouring and/or fragrance agent

#65
20150203437
2015-07-23

Methylidene malonate process

#66
20150183714
2015-07-02

Methylidene malonate process

#67
20150152053
2015-06-04

Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes

#68
20150073171
2015-03-12

Stabilized (meth)acrylic monomers

#69
20140343281
2014-11-20

Hydroxy group protecting agent and hydroxy group protection method

#70
20140309419
2014-10-16

METHOD FOR ENHANCING THE THERMAL STABILITY OF IONIC COMPOUNDS

#71
20140228571
2014-08-14

Method of stabilizing polymerizable compounds

#72
20140206893
2014-07-24

Process for the alkoxycarbonylation of functionalized alkenes

#73
20140206585
2014-07-24

Substituted diarylamines and use of same as antioxidants

#74
20140135523
2014-05-15

Continuous process for preparing (meth)acrylates of C-alcohol mixtures

#75
20140054224
2014-02-27

Liquid cation exchanger

#76
20140039210
2014-02-06

Liquid cation exchanger

#77
20130012736
2013-01-10

METHYLIDENE MALONATE PROCESS

#78
20130008773
2013-01-10

METHYLIDENE MALONATE PROCESS

#79
20120203020
2012-08-09

Multi-component polymerization inhibitors for ethylenically unsaturated monomers

#80
20120108842
2012-05-03

Methods for producing a vinyl acetate composition having a low impurity content

#81
20120088707
2012-04-12

ALKYL (METH) ACRYLATES COMPRISING A LONG LINEAR CHAIN BEARING ALKYL RAMIFICATIONS, PREPARATION THEREOF AND USE THEREOF IN THE PRODUCTION OF PETROLEUM ADDITIVES

#82
20120016095
2012-01-19

α-(unsaturated alkoxyalkyl) acrylate composition and process for production thereof

#83
20110306783
2011-12-15

COMPOSITION STABILIZED FOR PURIFICATION AND METHOD FOR PURIFYING AND FOR PRODUCING HYDROXYALKYL (METH)ACRYLATES

#84
20110160484
2011-06-30

Method of Inhibiting Polymerization and Fouling in Acrylic Acid and Acrylate Processes

#85
20110140050
2011-06-16

Process for inhibiting polymerization of (meth)acrylic acid and/or (meth)acrylic esters

#86
20110140047
2011-06-16

Formulations and method for raising the flash points of volatile organic solvents

#87
20110071311
2011-03-24

Production of ethylenically unsaturated acids or esters thereof

#88
20110021631
2011-01-27

Method of preparing stabilized pharmaceutical compositions comprising active ingredients susceptible to conversion to alternate polymorph forms

#89
20100286439
2010-11-11

Methylidene malonate process

#90
20100286438
2010-11-11

Methylidene malonate process

#91
20100286433
2010-11-11

Methylidene malonate process

#92
20100168434
2010-07-01

INHIBITION OF POLYMERISATION

#93
20100152291
2010-06-17

PRODUCTION METHOD OF CAPSINOID BY DEHYDRATING CONDENSATION, STABILIZING METHOD OF CAPSINOID, AND CAPSINOID COMPOSITION

#94
20090240092
2009-09-24

ORTHO-NITROSOPHENOLS AS POLYMERIZATION INHIBITORS

#95
20090023947
2009-01-22

Process for preparing tertiary alkyl esters of (meth)acrylic acid having at least 4 carbon atoms in the alkyl radical

#96
20080305976
2008-12-11

Color-Stabilization of Aromachemicals

#97
20080287632
2008-11-20

Stabilization of Monomer Emulsions Against Premature Polymerization

#98
20080242725
2008-10-02

Pharmaceutical Composition

#99
20080234446
2008-09-25

Process for transporting in the tank of a tank truck or tanker ship a liquid monomer phase withdrawn from a storage vessel

#100
20080228002
2008-09-18

Metal surfaces to inhibit ethylenically unsaturated monomer polymerization

#101
20080214858
2008-09-04

Composition of vinyl ether group-containing (meth) acrylic acid ester and production method thereof

#102
20080146831
2008-06-19

Continuous Method for Producing Cyclohexyl(Meth)Acrylate

#103
20080011385
2008-01-17

Method of storing (meth)acrylic ester

#104
20070197785
2007-08-23

Method for inhibiting polymerization of (METH) acrylic acid and its esters using an inhibitor and a process for making a compound useful as such an inhibitor

#105
20070129564
2007-06-07

Method for the production of (meth)acrylic acid esters

#106
20070098922
2007-05-03

Multi-functional monomer having a photoreactive group, alignment film for LCD using the monomer, and LCD comprising the alignment film

#107
20070066842
2007-03-22

Polymerization Inhibitor Compositions, Their Preparation, and Their Use

#108
20070049768
2007-03-01

Composition of vinyl ether group containing (meth)acrylic acid ester and production method thereof

#109
20070020738
2007-01-25

Production method of capsinoid by dehydrating condensation, stabilizing method of capsinoid, and capsinoid composition

#110
20060283699
2006-12-21

Ortho-nitrosophenols as polymerization inhibitors

#111
20060155140
2006-07-13

Blends of quinone alkide and nitroxyl compounds as polymerization inhibitors

#112
20060074257
2006-04-06

Method for inhibiting polymerization of (meth)acrylic acid and its esters using an inhibitor and a process for making a compound useful as such an inhibitor

#113
20060051301
2006-03-09

Coolant solutions and compositions comprising the same

#114
20060030728
2006-02-09

Preparation of (meth)acrylic esters

#115
20060019401
2006-01-26

Monitoring the stability of vinylog compounds

#116
20050261523
2005-11-24

Preparation of (METH) acrylic acid and (METH) acrylic esters

#117
20050261515
2005-11-24

Use of polyalkenyl succinimides in acrylic acid production

#118
20050215813
2005-09-29

Method for preventing clogging in apparatus for handling (meth)acrylic acid or esters thereof

#119
20050192462
2005-09-01

Method for handling high-viscosity substances

#120
20050143604
2005-06-30

Method for producing acrylic acid

#121
20050010065
2005-01-13

Method for producing (meth) acrylic acid esters of polyhydric alcohols

#122
18399457
2024-05-07

Preparation method of resveratrol nervonic acid ester

#123
16996288
2021-10-19

Method for purifying polyunsaturated fatty acid by using continuous reactor