EP 4146730 A2 20230315 - POLYETHYLENE-TYPE MATERIALS, THE SOLVOLYSIS THEREOF AND PRODUCTION OF FINISHED PARTS THEREFROM
Title (en)
POLYETHYLENE-TYPE MATERIALS, THE SOLVOLYSIS THEREOF AND PRODUCTION OF FINISHED PARTS THEREFROM
Title (de)
POLYETHYLEN-ARTIGE MATERIALIEN, IHRE SOLVOLYSE UND HERSTELLUNG VON FERTIGTEILEN DARAUS
Title (fr)
MATIÈRES DE TYPE POLYÉTHYLÈNE, LEUR SOLVOLYSE ET FABRICATION À PARTIR DESDITES MATIÈRES D'ÉLÉMENTS PRÉFABRIQUÉS
Publication
Application
Priority
- EP 20173326 A 20200506
- EP 2021061801 W 20210505
Abstract (en)
[origin: WO2021224303A2] According to a first aspect, the invention relates to a polyethylene-type polymer comprising methylene groups (CH2) and at least one functional group selected from group O-C(=O) and group O-C(=O)-O, the polyethylene-type polymer having a number-average molecular weight (Mn) in the range of 20,000 to 10,000,000 g/mol. In a second aspect, the invention relates to a method for producing specific monomers of general formula (II) and/or specific oligomers of general formula (III). In a third aspect, the invention relates to a composition comprising a monomer of general formula (II) and/or an oligomer of general formula (III), the composition being obtained or obtainable by means of the method of the second aspect. A fourth aspect of the invention relates to the use of the composition according to the third aspect to produce polymers. A fifth aspect of the invention relates to a method for producing a finished part, comprising: - provision of a material having a polyethylene-type polymer; and - primary forming of the material. A sixth aspect of the invention relates to a method for producing a finished part from a material, the material having a polyethylene-type polymer, wherein the finished part is produced by means of an additive manufacturing method.
IPC 8 full level
C08J 11/24 (2006.01); C07B 37/06 (2006.01); C07C 29/09 (2006.01); C07C 29/128 (2006.01); C07C 31/20 (2006.01); C07C 51/09 (2006.01); C07C 55/18 (2006.01); C07C 55/20 (2006.01); C07C 55/21 (2006.01); C08G 63/16 (2006.01); C08G 63/83 (2006.01); C08G 64/02 (2006.01); C08G 64/30 (2006.01)
CPC (source: EP)
B33Y 70/00 (2014.12); C07C 29/1285 (2013.01); C07C 67/03 (2013.01); C08G 63/16 (2013.01); C08G 64/0208 (2013.01); C08G 64/305 (2013.01); C08J 11/24 (2013.01); C08J 2323/00 (2013.01); C08J 2367/00 (2013.01); C08J 2367/02 (2013.01); C08J 2369/00 (2013.01); Y02W 30/62 (2015.05)
Citation (search report)
See references of WO 2021224303A2
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)
EP 3907250 A1 20211110; EP 4146730 A2 20230315; WO 2021224303 A2 20211111; WO 2021224303 A3 20211230
DOCDB simple family (application)
EP 20173326 A 20200506; EP 2021061801 W 20210505; EP 21722500 A 20210505