EP 0000424 B1 19840201 - LINEAR OR BRANCHED ESTER-ETHER BLOCK COPOLYMERS AND THEIR USE AS SURFACTANTS EITHER ALONE OR IN BLENDS WITH CONVENTIONAL SURFACTANTS
Title (en)
LINEAR OR BRANCHED ESTER-ETHER BLOCK COPOLYMERS AND THEIR USE AS SURFACTANTS EITHER ALONE OR IN BLENDS WITH CONVENTIONAL SURFACTANTS
Publication
Application
Priority
GB 2919277 A 19770712
Abstract (en)
[origin: EP0000424A1] Block copolymers useful as surfactants in oil/water systems are described. The copolymers comprise at least two polymeric components of molecular weight at least 500 which are derived from an oil-soluble complex mono-carboxylic acid and a polymeric component of molecular weight at least 500 which is derived from a water-soluble polyalkylene glycol. The copolymers may be either oil-soluble or water-soluble depending on their composition and may be used as wetting agents, dispersing agents, emulsifiers or emulsion stabilisers. The oil-soluble copolymer, and their blends with low molecular weight conventional surfactants, are of particular interest for the emulsification of water in hydrocarbon fuel oils.
IPC 1-7
IPC 8 full level
B01J 13/00 (2006.01); C07C 69/675 (2006.01); C09K 23/42 (2022.01); C08G 63/00 (2006.01); C08G 63/06 (2006.01); C08G 63/66 (2006.01); C08G 63/664 (2006.01); C08G 65/00 (2006.01); C08G 65/32 (2006.01); C08G 81/00 (2006.01); C09K 23/00 (2022.01); C09K 23/44 (2022.01); C09K 23/52 (2022.01); C10L 1/32 (2006.01); C10L 10/18 (2006.01); C10M 145/38 (2006.01); C10M 173/00 (2006.01); C11D 3/37 (2006.01); D06M 13/02 (2006.01); D06M 13/224 (2006.01); D06M 15/00 (2006.01); C10N 40/08 (2006.01); C10N 40/20 (2006.01); C10N 40/22 (2006.01)
CPC (source: EP US)
C08G 63/664 (2013.01 - EP US); C09K 23/44 (2022.01 - EP US); C10L 1/328 (2013.01 - EP US)
Citation (examination)
CHEMICAL ABSTRACTS, vol. 86, no. 12, March 21, RAO, T. CHANDRASEKHARA et al., page 124, abstract 74 8793 J.Am. Oil Chem. Soc. 1977 54 (1) 15-16
Designated contracting state (EPC)
BE DE FR LU NL SE
DOCDB simple family (publication)
EP 0000424 A1 19790124; EP 0000424 B1 19840201; AU 3777378 A 19800110; AU 523572 B2 19820805; CA 1126288 A 19820622; DE 2862369 D1 19840308; DK 311278 A 19790113; ES 471652 A1 19791001; IT 1097231 B 19850826; IT 7825616 A0 19780712; JP H0134532 B2 19890719; JP H03174240 A 19910729; JP H0317534 B2 19910308; JP H0411251 B2 19920227; JP S5418898 A 19790213; JP S6470525 A 19890316; NZ 187767 A 19801024; US 4203877 A 19800520; ZA 783802 B 19790725
DOCDB simple family (application)
EP 78300074 A 19780623; AU 3777378 A 19780705; CA 306985 A 19780707; DE 2862369 T 19780623; DK 311278 A 19780711; ES 471652 A 19780712; IT 2561678 A 19780712; JP 20692490 A 19900806; JP 8324588 A 19880406; JP 8413078 A 19780712; NZ 18776778 A 19780703; US 92156378 A 19780703; ZA 783802 A 19780703