ClassID:

91339

C07C41/58 - CPC Classification

Classification description:

Preparation of ethers; Preparation of compounds having groups, groups or groups; Preparation of compounds having groups Separation; Purification; Stabilisation; Use of additives

Recent Application in this class:
#1
20230278943
2023-09-07

METHOD FOR PRODUCING POLYOXYMETHYLENE DIMETHYL ETHERS

#2
20230144339
2023-05-11

SUSTAINABLE PROCESS FOR THE MANUFACTURE OF 1,1,4,4-TETRAMETHOXY-2-BUTENE

#3
20230063030
2023-03-02

Method for Producing (Hydro)Halocarbon

#4
20220388935
2022-12-08

Method for producing polyoxymethylene dimethyl ethers

#5
20220112148
2022-04-14

PREPARATION METHOD FOR POLYOXYMETHYLENE DIMETHYL ETHER AND MIXTURE THEREOF

#6
20210387157
2021-12-16

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

#7
20200339495
2020-10-29

Process for continuously producing polyoxymethylene dimethyl ethers at low temperature

#8
20190282993
2019-09-19

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

#9
20190276579
2019-09-12

Process for producing dimethoxymethane oligomers

#10
20190071378
2019-03-07

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

#11
20180370889
2018-12-27

Method for Preservation of Alpha, Alpha-Difluoroacetaldehyde Alkyl Hemiacetal

#12
20180134642
2018-05-17

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

#13
20160185683
2016-06-30

Process of asymmetric hydrogenation of ketals and acetals

#14
20150094497
2015-04-02

Reaction system and process for preparing polymethoxy dimethyl ether

#15
20140364653
2014-12-11

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

#16
20140323771
2014-10-30

Process for preparing acetals and ketals

#17
20140288333
2014-09-25

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

#18
20140187823
2014-07-03

Process for the production of pure methylal

#19
20140114093
2014-04-24

System and method for continuously producing polyoxymethylene dialkyl ethers

#20
20140114092
2014-04-24

System and method for continuously producing polyoxymethylene dimethyl ethers

#21
20130225869
2013-08-29

Stabilized 3,3 dialkoxy-1-propene-preparation

#22
20120277477
2012-11-01

Method for manufacturing hydroxyl group-containing acetal compound

#23
20120101252
2012-04-26

Method for the preparation of polyesters

#24
20120029240
2012-02-02

Allyl and propargyl ethers

#25
20110313202
2011-12-22

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

#26
20100076226
2010-03-25

Preparation of Dibutoxymethane

#27
20090062384
2009-03-05

Abietane diterpenoid compound, and composition comprising extract of torreya nucifera, or abietane diterpenoid compounds or terpenoid compounds isolated from them for prevention and treatment of cardiovascular disease

#28
20080299238
2008-12-04

Abietane diterpenoid compound, and composition comprising extract of , or abietane diterpenoid compounds or terpenoid compounds isolated from them for prevention and treatment of cardiovascular disease

#29
20080287714
2008-11-20

Industrial process for acetals production in a simulated moving bed reactor

#30
20080207955
2008-08-28

Method for the production of polyoxymethylene dialkyl ethers from trioxan and dialkylethers

#31
20080207954
2008-08-28

Method for producing polyoxymethylene dimethyl ethers from methanol and formaldehyde

#32
20070190192
2007-08-16

Abietane diterpenoid compound, and composition comprising extract of , or abietane diterpenoid compounds or terpenoid compounds isolated from them for prevention and treatment of cardiovascular disease

#33
20070073088
2007-03-29

Process for the separation, by countercurrentwise liquid-liquid extraction, of a glyoxal diacetal from a crude mixture comprising it

#34
20060264678
2006-11-23

Method for processing compositions containing 1,1,2,2-tetramethoxyethane and glyoxal dimethyl acetal

#35
20060129000
2006-06-15

Processes for the manufacture of acetals