POLYMERS AND THEIR USES

• Main Authors: HODGSON, PHILIP, KENNETH, GORDON, HANDA, SHEETAL
• Format: Patent
• Language: English; French
• Published: 11.11.1999
• Edition: 6
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; HEATING; LIGHTING; LIQUEFIED PETROLEUM GAS; LUBRICANTS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MECHANICAL ENGINEERING; METALLURGY; NATURAL GAS; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PIPE-LINE SYSTEMS; PIPE-LINES; STORING OF DISTRIBUTING GASES OR LIQUIDS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP; WEAPONS

This invention relates to a copolymer having structural units derived from monomers which are (A) at least one ethylenically unsaturated alcohol, carboxylic acid or ester, with at least one of (B) an ethylenically unsaturated carboxylic ester with a polar group in the ester, and (C) an ethylenically unsatured carboxylic amide. The invention also relates to the use of such a copolymer in hydrocarbon and aqueous fluid media. Cette invention a trait à un copolymère pourvu de motifs structuraux dérivés de monomères qui consistent, (A), en au moins un alcool insaturé éthyléniquement, avec au moins, (B), un ester carboxylique insaturé éthyléniquement, un groupe polaire se trouvant dans l'ester, et, (C) en un amide carboxylique insaturé éthyléniquement. L'invention a également trait à l'utilisation qui est faite de ce copolymère dans des milieux fluides hydrocarbonés et aqueux.