EP 4136135 A2 20230222 - HOT MELT ADHESIVE WITHSTANDING MOTOR VEHICLE FLUIDS
Title (en)
HOT MELT ADHESIVE WITHSTANDING MOTOR VEHICLE FLUIDS
Title (de)
GEGENÜBER KRAFTFAHRZEUGFLÜSSIGKEITEN BESTÄNDIGER SCHMELZKLEBSTOFF
Title (fr)
ADHÉSIF THERMOFUSIBLE RÉSISTANT AUX FLUIDES AUTOMOBILES
Publication
Application
Priority
- FR 2003895 A 20200417
- FR 2021050680 W 20210416
Abstract (en)
[origin: WO2021209730A2] The invention relates to a semi-crystalline copolyamide comprising at least two units corresponding to the following formula: X/Y where - the X unit is a crystalline unit obtained by polycondensation of a unit selected from a C5-C12 alpha,omega-aminocarboxylic acid, a C6-C12 lactam and a (Ca diamine).(Cb diacid) unit, where a is the number of carbon atoms of the diamine and b is the carbon number of the diacid, a and b being greater than or equal to 4; - the Y unit is a unit obtained by the polycondensation of a (Cd diamine).(Ce diacid) unit, where d is the number of carbon atoms of the diamine and e is the carbon number of the diacid, d and e being between 24 and 48, the Cd diamine and the Ce diacid being linear or branched, saturated or unsaturated aliphatics; - the copolyamide not comprising ethylenediamine; - the copolyamide comprising from 30 to 99.5 mol % of unit X and from 0.5 to 70 mol % of unit Y; - the copolyamide having a viscosity in the molten state, measured according to standard ASTM D3236-88 (2009), of between 0.5 and 100 Pa.s at 200° C; - the copolyamide having a Tg below 0°C. The invention also relates to a method for preparing same and to the use thereof.
IPC 8 full level
C08G 69/26 (2006.01); C08G 69/34 (2006.01); C08G 69/36 (2006.01); C09J 177/06 (2006.01)
CPC (source: EP)
C08G 69/265 (2013.01); C08G 69/34 (2013.01); C08G 69/36 (2013.01); C09J 177/06 (2013.01)
Citation (search report)
See references of WO 2021209730A2
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)
WO 2021209730 A2 20211021; WO 2021209730 A3 20211209; CN 115943176 A 20230407; EP 4136135 A2 20230222; FR 3109385 A1 20211022; FR 3109385 B1 20221216
DOCDB simple family (application)
FR 2021050680 W 20210416; CN 202180042164 A 20210416; EP 21732383 A 20210416; FR 2003895 A 20200417