EP 3997176 A1 20220518 - TERNARY POLYMER BLEND, IN PARTICULAR FOR PIPE EXTRUSION, THERMOPLASTIC PLASTICS PIPE MADE FROM SUCH A BLEND, AND USE THEREOF
Title (en)
TERNARY POLYMER BLEND, IN PARTICULAR FOR PIPE EXTRUSION, THERMOPLASTIC PLASTICS PIPE MADE FROM SUCH A BLEND, AND USE THEREOF
Title (de)
TERNÄRES POLYMERBLEND, INSBESONDERE ZUR ROHREXTRUSION, THERMOPLASTISCHES KUNSTSTOFFROHR AUS EINEM DERARTIGEN BLEND SOWIE DESSEN VERWENDUNG
Title (fr)
MÉLANGE DE POLYMÈRES TERNAIRE, EN PARTICULIER POUR L'EXTRUSION DE TUYAUX, TUYAU EN MATIÈRE PLASTIQUE THERMOPLASTIQUE FABRIQUÉ À PARTIR D'UN TEL MÉLANGE ET SON UTILISATION
Publication
Application
Priority
- DE 102019118856 A 20190711
- EP 2020067275 W 20200622
Abstract (en)
[origin: WO2021004764A1] The invention relates to a thermoplastic polyamide-polyolefin blend, in particular for the extrusion of pipes intended for conveying fluid, said blend at least containing a polyolefin, a polyamide and a compatibiliser. In order to achieve high media resistance, in particular with respect to cooling water and aqueous zinc chloride solutions, and to guarantee a good extrusion performance of the blend and make it possible to fit a plastics pipe produced from the blend on mandrels as pipe connector elements, all while optimising the ratio of requirement profile to manufacturing outlay, the invention provides for the polyolefin to be a polypropylene-based thermoplastic elastomer, which is present in a mass ratio to the polyamide in the range from 0.05 to 5.0, the compatibiliser content being in a range from 7.5 to 50 parts by mass, in relation to 100 parts of the mixture of the polypropylene-based thermoplastic elastomer and the polyamide, and the compatibiliser containing, as at least a first component, a partially neutralised ionomer which is a copolymer containing ethylene monomer and acrylic acid monomer units.
IPC 8 full level
C08L 77/06 (2006.01); B29C 48/09 (2019.01); F16L 9/12 (2006.01)
CPC (source: CN EP)
C08L 77/02 (2013.01 - CN); C08L 77/06 (2013.01 - EP); F16L 9/12 (2013.01 - CN EP); B29C 48/022 (2019.02 - EP); B29C 48/09 (2019.02 - EP); B29K 2021/003 (2013.01 - EP); B29K 2023/00 (2013.01 - EP); B29K 2077/00 (2013.01 - EP); B29K 2105/0088 (2013.01 - EP); C08L 2203/18 (2013.01 - CN)
C-Set (source: CN EP)
CN
C08L 77/02 + C08L 23/16 + C08L 23/0884 + C08L 23/0869
EP
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
DOCDB simple family (publication)
DE 102019118856 A1 20210114; CN 114040944 A 20220211; CN 114040944 B 20240405; EP 3997176 A1 20220518; WO 2021004764 A1 20210114
DOCDB simple family (application)
DE 102019118856 A 20190711; CN 202080045206 A 20200622; EP 2020067275 W 20200622; EP 20734687 A 20200622