ClassID:

92118

C07C67/58 - CPC Classification

Classification description:

Preparation of carboxylic acid esters; Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Recent Application in this class:
#1
20260008743
2026-01-08

PROCESS FOR PRODUCING POLYUNSATURATED FATTY ACIDS IN THE FORM OF ESTERS

#2
20260008742
2026-01-08

CONTINUOUS PROCESS FOR PRODUCING N-BUTYL (METH)ACRYLATE WITH A CATALYST RECIRCULATION SYSTEM

#3
20250333370
2025-10-30

METHOD FOR EXTRACTING 3,5-O-DICAFFEOYLQUINIC ACID FROM HUANGSHAN GONGJU AND ITS APPLICATION IN DRUGS FOR PROTECTING AGAINST ALCOHOLIC LIVER DAMAGE

#4
20250320532
2025-10-16

PREPARING DIESTERS OF MALONIC ACID

#5
20250304521
2025-10-02

PROCESS FOR GENERATING ACID ANHYDRIDES

#6
20250230472
2025-07-17

EXTRACTION OF ALKANOIC ACIDS

#7
20250179003
2025-06-05

ETHYL ACETATE PRODUCTION AND PURIFICATION

#8
20250065292
2025-02-27

SYSTEM AND METHOD FOR PREPARING DIESTER-BASED COMPOSITION

#9
20240400490
2024-12-05

PROCESS FOR PREPARING A PEROXYESTER OR PEROXYCARBONATE

#10
20240262781
2024-08-08

DEPOLYMERIZABLE POLYOLEFINS FROM SOLUTION-PHASE POLYMERIZATION

#11
20240262772
2024-08-08

A SOLVENT DRYING SOLUTION AND PROCESSES THERFOR

#12
20240239983
2024-07-18

METHOD FOR EXTRACTION AND TRANSFORMATION BY TRANSESTERIFICATION OF PHTHALATES CONTAINED IN PVC PLASTICS MATERIALS

#13
20240228424
2024-07-11

BIO-BASED POLYMERS FOR THE PURIFICATION OF HIGH COMMERCIAL VALUE CHEMICALS EXTRACTED FROM PLANTS, FOOD WASTE, AND NON-FOOD BIOMASS

#14
20240166591
2024-05-23

Pharmaceutical Products Based on Cannabinoid Acid Esters

#15
20240132438
2024-04-25

BIO-BASED POLYMERS FOR THE PURIFICATION OF HIGH COMMERCIAL VALUE CHEMICALS EXTRACTED FROM PLANTS, FOOD WASTE, AND NON-FOOD BIOMASS

#16
20240034713
2024-02-01

PROCESS FOR HYDROGENATION OF PHTHALATE COMPOUND

#17
20230348355
2023-11-02

METHOD OF MANUFACTURING DIESTER-BASED COMPOUND

#18
20230219878
2023-07-13

Process for Recovering Oxidation By-Products

#19
20230202962
2023-06-29

METHOD FOR PURIFYING HALOGEN-CONTAINING (METH)ACRYLATE

#20
20230147401
2023-05-11

METHOD TO PURIFY TRIS-(3-HYDROXYBUTYRATO)-GLYCERYL ESTER

#21
20230130823
2023-04-27

PROCESS FOR THE PRODUCTION OF ANTITUMOUR PHARMACEUTICAL COMPOSITIONS USING PUSH-PULL BUTADIENES, COMPOUNDS AND USES THEREOF

#22
20230120038
2023-04-20

PROCESS FOR GENERATING ACID ANHYDRIDES

#23
20220380295
2022-12-01

METHOD FOR SEPARATING AND PREPARING MULTIPLE ISOMER COMPOUNDS FROM SEABUCKTHORN POMACE

#24
20220371984
2022-11-24

Method of preparing diester-based material

#25
20220249428
2022-08-11

Discovery of potent [alpha]-glucosidase inhibitors from

#26
20220177404
2022-06-09

System and method for manufacturing diester-based composition

#27
20220162149
2022-05-26

Acid catalyzed synthesis of methyl acrylate from acrylic acid and methanol

#28
20220153679
2022-05-19

Acid catalyzed synthesis of methyl acrylate from acrylic acid and methanol

#29
20220033341
2022-02-03

EXTRACTION OF NATURAL FERULATE AND COUMARATE FROM BIOMASS

#30
20210355069
2021-11-18

System and method for manufacturing ester-based composition

#31
20210347722
2021-11-11

Process for generating acid anhydrides

#32
20210269385
2021-09-02

Process for preparing MMA in high yields

#33
20210261491
2021-08-26

Method for purifying light acrylates

#34
20210130279
2021-05-06

Method for preparing (meth)acrylic acid ester based compound

#35
20210047261
2021-02-18

Method for producing methyl methacrylate

#36
20200399666
2020-12-24

Method for preparation of diester derivatives of malonic acid

#37
20200377442
2020-12-03

Process for the production of methyl acrylate from methyl lactate

#38
20200317599
2020-10-08

System and method for manufacturing ester-based composition

#39
20200239400
2020-07-30

Process for continuously preparing n-butyl acrylate or isobutyl acrylate

#40
20200215458
2020-07-09

Separation method, and production method for (meth)acrylate

#41
20200181060
2020-06-11

Extraction of natural ferulate and coumarate from biomass

#42
20200148622
2020-05-14

Mixture of polymerizable compound and method of producing the same

#43
20200010860
2020-01-09

PROCESS FOR PREPARING SUCCINATE ESTER

#44
20190345093
2019-11-14

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

#45
20190330136
2019-10-31

Process for the production of higher carboxylic acid vinyl esters

#46
20190308925
2019-10-10

PROCESS FOR THE PREPARATION OF DIALKYL TEREPHTHALATES FROM RECYCLE FEEDSTOCKS

#47
20190300471
2019-10-03

Method for the synthesis and purification of aryl acid esters

#48
20190281856
2019-09-19

Chlorogenic acid-containing composition manufacturing method

#49
20190201467
2019-07-04

Extracts and isolated compounds from for treatment of ulcer

#50
20190192469
2019-06-27

Oleocanthal isolation and cancer treatment

#51
20190152889
2019-05-23

Process for the recovery of dialkyl succinate or dialkyl maleate

#52
20190010522
2019-01-10

Methods of making capsinoids by biosynthetic processes

#53
20180305288
2018-10-25

Method of preparing (meth)acrylic acid

#54
20180251419
2018-09-06

Extractive workup of a sodium-salt-containing MMA-methanol mixture

#55
20180251418
2018-09-06

Synthesis of methacrylic acid from methacrolein-based alkyl methacrylate

#56
20180222842
2018-08-09

Water elimination method

#57
20180201570
2018-07-19

Compound and method for producing same

#58
20180179140
2018-06-28

Process for the production of higher carboxylic acid vinyl esters

#59
20180171178
2018-06-21

Method for the separation of the isoprenic constituents of guayule

#60
20180162800
2018-06-14

Use of the Irritating Principal Oleocanthal in Olive Oil, as Well as Structurally and Functionally Similar Compounds

#61
20180155268
2018-06-07

Production method of highly unsaturated fatty acid ethyl ester

#62
20180148664
2018-05-31

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

#63
20180099921
2018-04-12

Mixture of polymerizable compound and method of producing the same

#64
20180087075
2018-03-29

Method of producing bioproducts

#65
20180087023
2018-03-29

METHOD OF PRODUCING BIOPRODUCTS

#66
20180037532
2018-02-08

Recovery process for functionalized compound reaction product

#67
20180022682
2018-01-25

Method for esterification of a diol using a reactive distillation

#68
20170369803
2017-12-28

Biodiesel composition and related process and products

#69
20170362521
2017-12-21

Process for producing biodiesel and related products

#70
20170349535
2017-12-07

Materials and methods for the selective recovery of monovalent products from aqueous solutions using continuous ion exchange

#71
20170349525
2017-12-07

Lactylate purification process

#72
20170334827
2017-11-23

Reduced fouling process for the production of methyl methacrylate

#73
20170305832
2017-10-26

PREPARATION OF A SORBATE ESTER

#74
20170298000
2017-10-19

Reduced fouling process for the production of methyl methacrylate

#75
20170297998
2017-10-19

Method for producing diesters of terephthalic acid with enrichment of recirculated alcohol

#76
20170266250
2017-09-21

Compositions and methods of antiallergic phorbol ester and phorbol derivatives as the main active ingredients from the seeds of aquilaria malaccensis

#77
20170143782
2017-05-25

Extracts and isolated compounds from for treatment of ulcer

#78
20160361285
2016-12-15

METHOD FOR PURIFYING STEARIDONIC ACID

#79
20160318841
2016-11-03

Production process and purification process of 4-hydroxy-benzoic acid long chain ester

#80
20160311753
2016-10-27

Methods of Making Triacylglycerol Polyols from Fractions of Metathesized Natural Oils and Uses Thereof

#81
20160304912
2016-10-20

A PROCESS FOR PREPARING SUCCINATE ESTER

#82
20160297747
2016-10-13

MATERIALS AND METHODS FOR THE SELECTIVE RECOVERY OF MONOVALENT PRODUCTS FROM AQUEOUS SOLUTIONS USING CONTINUOUS ION EXCHANGE

#83
20160272570
2016-09-22

Process for producing light (meth)acrylic esters

#84
20160264510
2016-09-15

Nonpolar phase-soluble metathesis catalysts

#85
20160251297
2016-09-01

Unit and process for purification of crude methyl methacrylate

#86
20160229789
2016-08-11

Method for obtaining polyol esters-enriched product streams from the side-streams in polyol ester production

#87
20160168062
2016-06-16

Process for depolymerization of lignin

#88
20160145516
2016-05-26

Process for producing biodiesel and related products

#89
20160137937
2016-05-19

Biodiesel composition and related process and products

#90
20160137936
2016-05-19

Process and apparatus for purifying a fatty mixture and related products including fuels

#91
20150299093
2015-10-22

Method for producing 2-octyl acrylate by direct esterification

#92
20150259614
2015-09-17

METHOD AND DEVICE FOR MANUFACTURING BIODIESEL FROM SEWAGE SLUDGE

#93
20150087857
2015-03-26

Liquid-liquid extraction process for the production of acrylic esters

#94
20150038736
2015-02-05

Vertical centrifugal thin film evaporator and monomer purification method

#95
20140357888
2014-12-04

Process for refining glyceride oil and purifying triglyceride oil obtained by such process

#96
20140275595
2014-09-18

Methods for treating substrates prior to metathesis reactions, and methods for metathesizing substrates

#97
20140216117
2014-08-07

Method for Reclaiming Usable Products from Biosolids

#98
20140051882
2014-02-20

METHOD OF PURIFICATION OF PROSTAGLANDINS INCLUDING FLUORINE ATOMS BY PREPARATIVE HPLC

#99
20140012037
2014-01-09

Ethyl acetate production

#100
20130289300
2013-10-31

METHOD AND SYSTEM FOR SEPARATING LINALYL ACETATE FROM LAVENDER ESSENTIAL OIL AND PREPARING ITS DERIVATIVES

#101
20130261333
2013-10-03

Hydrocarboxylation of formaldehyde in the presence of a higher order carboxylic acid and heterogeneous catalyst

#102
20130261328
2013-10-03

Hydrocarboxylation of formaldehyde in the presence of a higher order carboxylic acid and a homogeneous catalyst

#103
20130217768
2013-08-22

Simple process to produce and separate water soluble and oil soluble antioxidative flavoring compositions from labiatae herbs using green solvents

#104
20130211115
2013-08-15

Process for the purification of a fatty acid alkyl ester by liquid/liquid extraction

#105
20130131393
2013-05-23

Esterification process using extractive separation to produce feed for hydrogenolysis

#106
20130131376
2013-05-23

METHOD FOR PRODUCING A CARBOXYLIC ACID ESTER

#107
20130066091
2013-03-14

Process for hydrochlorination of multihydroxylated aliphatic hydrocarbons

#108
20130018203
2013-01-17

Method for producing n-propyl acetate and method for producing allyl acetate

#109
20120136170
2012-05-31

Process for the manufacturing of vinyl acetate

#110
20110251419
2011-10-13

Method for regeneration of raw ester

#111
20110224452
2011-09-15

Method for obtaining polyunsaturated fatty acid derivatives

#112
20110130450
2011-06-02

PRAVASTATIN EXTRACTION

#113
20110034719
2011-02-10

PROCESS FOR THE PREPARATION OF (S)- NAPROXEN 4-NITROOXYBUTYL ESTER

#114
20110020424
2011-01-27

Use of the irritating principal oleocanthal in olive oil, as well as structurally and functionally similar compounds

#115
20100228057
2010-09-09

Extraction process for aldehyde product separation and catalyst recovery

#116
20100168464
2010-07-01

Method for producing adamantyl (meth)acrylates

#117
20100034762
2010-02-11

Novel enrichment methods for gallic acid esters including 1-O-galloy1-bata-D-glucose and mucic acid gallates medicaments, therapeutic applications and methods of treatment thereof

#118
20090233338
2009-09-17

PROCESS FOR RECOVERY OF POLYHYDROXYALKANOATES FROM BIOMASS

#119
20090203860
2009-08-13

Nonpolar phase-soluble methathesis catalysts

#120
20090143610
2009-06-04

Method of preparing a purified ester-substituted phenol stream

#121
20090076142
2009-03-19

USE OF THE IRRITATING PRINCIPAL OLEOCANTHAL IN OLIVE OIL, AS WELL AS STRUCTURALLY AND FUNCTIONALLY SIMILAR COMPOUNDS

#122
20080275268
2008-11-06

Processes for producing 3-methyl-2-butenyl acetate

#123
20080214861
2008-09-04

Method for producing 2-hydroxyester compound

#124
20070282091
2007-12-06

Method of preparing ester-substituted diaryl carbonates

#125
20070219141
2007-09-20

Plant Materials Extraction Method

#126
20070151146
2007-07-05

Processes of Producing Biodiesel and Biodiesel Produced Therefrom

#127
20070037992
2007-02-15

Method for the purification of crude diacerein by means of toluene

#128
20060201879
2006-09-14

Process for permeation enhanced reactive extraction of levulinic acid

#129
20060157411
2006-07-20

Fiber film reactors to effect separation and reaction between two immiscible reaction components

#130
20060135797
2006-06-22

Process for purifying diacerein

#131
20060096159
2006-05-11

Method for improving the long term stability of biodiesel

#132
20060080891
2006-04-20

Process for the preparation of fatty acid methyl ester from triglyceride oil by transesterification

#133
20060047139
2006-03-02

Process for the reactive extractive extraction of levulinic acid

#134
20060035350
2006-02-16

Separation technology

#135
20050245764
2005-11-03

Process for producing optically active 2-substituted carboxylic acid

#136
20050240053
2005-10-27

Method for separating an esterification catalyst

#137
20050234123
2005-10-20

Process

#138
20050143599
2005-06-30

Process for preparing monoesters

#139
20050107629
2005-05-19

Method for producing ethyl acrylate

#140
16171953
2019-09-17

Methods for extracting and purifying capsinoids such as capsiate and dihydrocapsiate from sp. fruit