EP 4251628 A1 20231004 - PRODUCT OF INTERNAL DEHYDRATION OF HIGH-PURITY SORBITOL
Title (en)
PRODUCT OF INTERNAL DEHYDRATION OF HIGH-PURITY SORBITOL
Title (de)
PRODUKT ZUR INTERNEN DEHYDRIERUNG VON HOCHREINEM SORBITOL
Title (fr)
PRODUIT DE DESHYDRATATION INTERNE DU SORBITOL DE HAUTE PURETE
Publication
Application
Priority
- FR 2012215 A 20201126
- EP 2021025454 W 20211119
Abstract (en)
[origin: CA3198310A1] The present invention relates to a product of internal dehydration of sorbitol, characterised in that it has a total residual nitrogen atom content of between 0.01 ppm and 150 ppm, preferably of between 0.02 ppm and 20 ppm, more preferably of between 0.05 ppm and 10 ppm and, more preferentially, of between 0.07 ppm and 5 ppm, this residual content being expressed as dry weight relative to the total dry weight of said said product, and in that it has a total residual sulphur atom content of between 0.0001 ppm and 100 ppm, preferably between 0.0002 ppm and 50 ppm, more preferably between 0.0004 ppm and 30 ppm and, more preferentially, between 0.0008 ppm and 20 ppm, this total residual content being expressed in dry weight relative to the dry weight of said product; a method for purifying such a product and a polymer comprising a unit corresponding to said product.
IPC 8 full level
C07D 493/04 (2006.01); C08G 63/672 (2006.01); C08G 64/02 (2006.01); C08G 65/40 (2006.01); C08G 75/23 (2006.01)
CPC (source: EP KR US)
C07D 493/04 (2013.01 - EP KR US); C08G 63/672 (2013.01 - EP KR); C08G 64/0208 (2013.01 - EP KR); C08G 65/4056 (2013.01 - EP KR); C08G 75/23 (2013.01 - EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3116533 A1 20220527; FR 3116533 B1 20230804; AU 2021386448 A1 20230622; CA 3198310 A1 20220602; CN 116601154 A 20230815; EP 4251628 A1 20231004; JP 2023550909 A 20231206; KR 20230112666 A 20230727; US 2024092796 A1 20240321; WO 2022111849 A1 20220602
DOCDB simple family (application)
FR 2012215 A 20201126; AU 2021386448 A 20211119; CA 3198310 A 20211119; CN 202180079630 A 20211119; EP 2021025454 W 20211119; EP 21814683 A 20211119; JP 2023528216 A 20211119; KR 20237020566 A 20211119; US 202118254320 A 20211119