Use of organogelator derivatives in bituminous compositions to improve the resistance of same to chemical stress

• Main Authors: CHAMINAND JULIEN, DREESSEN SYLVIA, LAPALU LAURENCE, VINCENT REGIS
• Format: Patent
• Language: Chinese; English
• Published: 23.01.2013
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention relates to the use in a bituminous composition of an organogelator derivative which has a molar mass no higher than 2000 g/mol and includes at least one hydrogen bond donor D, at least one hydrogen bond acceptor A and at least one compatibilising agent C in the bitumen, said compatibilising agent C including a group selected among: at least one straight hydrocarbon chain including at least 4 carbon atoms; or at least one aliphatic cycle of 3 to 8 atoms; or at least one aromatic cycle; or at least one aliphatic, partially aromatic or even entirely aromatic condensed polycyclic system, each cycle including 5 or 6 atoms, taken alone or as a mixture, to improve the resistance thereof to aggressive chemical agents, in particular to hydrocarbons such as gasolines, diesels and/or kerosenes, excluding N,N'-ethylene bis(stearamide) and excluding fatty-chain polyamines obtained by reacting polyalkylene fatty-chain polyamines of the general formula (I) R-NH-(CH 2 - CH 2 -CH 2 -NH) n -H, where R is a linear