ClassID:

91338

C07C41/56 - CPC Classification

Classification description:

Preparation of ethers; Preparation of compounds having groups, groups or groups; Preparation of compounds having groups by reactions producing groups by condensation of aldehydes, paraformaldehyde, or ketones

Recent Application in this class:
#1
20250223252
2025-07-10

METHOD FOR PRODUCING GLYCOLALDEHYDE DIALKYL ACETAL

#2
20240425472
2024-12-26

METHOD FOR PRODUCING TRIOXANE OR METHYLAL

#3
20230278943
2023-09-07

METHOD FOR PRODUCING POLYOXYMETHYLENE DIMETHYL ETHERS

#4
20230271911
2023-08-31

PROCESS FOR PREPARING INDENE ACRYLADEHYDE DERIVATIVES

#5
20230046597
2023-02-16

METHOD FOR PRODUCING OXYMETHYLENE ETHER

#6
20220388935
2022-12-08

Method for producing polyoxymethylene dimethyl ethers

#7
20220112148
2022-04-14

PREPARATION METHOD FOR POLYOXYMETHYLENE DIMETHYL ETHER AND MIXTURE THEREOF

#8
20210387157
2021-12-16

Upgrading of a raw blend into a diesel fuel substitute: poly(dimethoxymethane)

#9
20210363084
2021-11-25

Etherification process

#10
20200339495
2020-10-29

Process for continuously producing polyoxymethylene dimethyl ethers at low temperature

#11
20200157444
2020-05-21

Cetane-boosting fuel additives, method of manufacture, and uses thereof

#12
20200031790
2020-01-30

Simple oxidative functionalized of alkyl aryl ketones

#13
20190282993
2019-09-19

Upgrading of a raw blend into a diesel fuel substitute: poly(dimethoxymethane)

#14
20190276579
2019-09-12

Process for producing dimethoxymethane oligomers

#15
20190071378
2019-03-07

Upgrading of a raw blend into a diesel fuel substitute: poly(dimethoxymethane)

#16
20180134642
2018-05-17

Process for preparing polyoxymethylene dimethyl ethers from formaldehyde and methanol in aqueous solutions

#17
20170297989
2017-10-19

Process for producing a multifunctional product and the device for applying said process

#18
20160272610
2016-09-22

Process for preparing chloroacetaldehyde acetals

#19
20160185683
2016-06-30

Process of asymmetric hydrogenation of ketals and acetals

#20
20160145394
2016-05-26

Process for the preparation of a polysulfide

#21
20150197474
2015-07-16

Synthetic navel orangeworm pheromone composition and methods relating to production of same

#22
20150094497
2015-04-02

Reaction system and process for preparing polymethoxy dimethyl ether

#23
20150065753
2015-03-05

Process for producing phenol and cyclohexanone

#24
20150045580
2015-02-12

Difluoromethylation of aryl and vinyl iodides

#25
20140364652
2014-12-11

Method for refining polyoxymethylene dialkyl ethers by catalytic hydrogenation using a slurry bed

#26
20140364651
2014-12-11

Method for synthesizing polyoxymethylene dimethyl ethers

#27
20140323771
2014-10-30

Process for preparing acetals and ketals

#28
20140288333
2014-09-25

Process for preparing or recovering acetals or ketals by means of pervaporation

#29
20140206906
2014-07-24

Synthetic navel orangeworm pheromone composition and methods relating to production of same

#30
20140187823
2014-07-03

Process for the production of pure methylal

#31
20140114093
2014-04-24

System and method for continuously producing polyoxymethylene dialkyl ethers

#32
20140114092
2014-04-24

System and method for continuously producing polyoxymethylene dimethyl ethers

#33
20120142972
2012-06-07

Synthetic navel orangeworm pheromone composition and methods relating to production of same

#34
20110313202
2011-12-22

Method for preparing polyoxymethylene dimethyl ethers by acetalation reaction of formaldehyde with methanol

#35
20110288343
2011-11-24

Method for synthesizing polyoxymethylene dimethyl ethers catalyzed by an ionic liquid

#36
20110263879
2011-10-27

ZWITTERIONIC PHOSPHONIUM SALTS

#37
20110105803
2011-05-05

METHOD OF SYNTHESIZING SEVOFLURANE

#38
20110098508
2011-04-28

Synthetic navel orangeworm pheromone composition and methods relating to production of same

#39
20100263265
2010-10-21

Method for converting biomass into products containing acetal groups and use thereof as biofuels

#40
20100137630
2010-06-03

Manufacture of purified alcohols

#41
20100099920
2010-04-22

Synthetic navel orangeworm pheromone composition and methods relating to production of same

#42
20100076226
2010-03-25

Preparation of Dibutoxymethane

#43
20100068139
2010-03-18

Methods of radiofluorination of biologically active vectors

#44
20090270288
2009-10-29

Alkyl acetal compound, process for producing the same, and lubricating oil composition

#45
20090036715
2009-02-05

Method for preparing polymethoxymethylal

#46
20080287714
2008-11-20

Industrial process for acetals production in a simulated moving bed reactor

#47
20080237027
2008-10-02

Manufacture of alcohols

#48
20080234152
2008-09-25

Alkyl acetal compound, process for producing the same, and lubricating oil composition

#49
20080221368
2008-09-11

Process for preparing polyoxymethylene dimethyl ethers from methanol and formaldehyde

#50
20080207954
2008-08-28

Method for producing polyoxymethylene dimethyl ethers from methanol and formaldehyde

#51
20070260094
2007-11-08

Method for Producing Polyoxymethylene Dimethyl Ethers

#52
20060293542
2006-12-28

Process for preparing high-purity, halogen-free o-phthaladehyde

#53
20060241314
2006-10-26

Organopolysiloxanes containing phosphonic groups, method for the production and use thereof

#54
20060129000
2006-06-15

Processes for the manufacture of acetals