EP 0111883 B2 19881026 - USE OF ETHYLENE COPOLYMERS AS MINERAL OIL ADDITIVES
Title (en)
USE OF ETHYLENE COPOLYMERS AS MINERAL OIL ADDITIVES
Publication
Application
Priority
DE 3247753 A 19821223
Abstract (en)
[origin: US4772673A] Waxy highly branched copolymers having a molecular weight of 500 to 20,000 comprised of at least 60% by weight of ethylene, 1 to 39% by weight of an alkene carboxylic acid ester and/or a vinyl ester and 1-30% by weight of a vinyl ketone produced by polymerization at 100 to 350 DEG C. and a pressure of about 1,000 to 8,000 bar in the presence of a radical forming initiator and in the absence of a solvent useful as oil additives to improve flow characteristics of crude oils and middle distillates derived from crude oil.
IPC 1-7
IPC 8 full level
C10L 1/18 (2006.01); C10L 1/195 (2006.01); C10L 1/16 (2006.01)
CPC (source: EP US)
C10L 1/195 (2013.01 - EP US); C10L 1/1641 (2013.01 - EP US); C10L 1/1955 (2013.01 - EP US); C10L 1/1963 (2013.01 - EP US); C10L 1/1973 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0111883 A1 19840627; EP 0111883 B1 19850821; EP 0111883 B2 19881026; AT E15064 T1 19850915; DE 3247753 A1 19840628; DE 3360622 D1 19850926; NO 163454 B 19900219; NO 163454 C 19900530; NO 834647 L 19840625; US 4772673 A 19880920
DOCDB simple family (application)
EP 83112556 A 19831214; AT 83112556 T 19831214; DE 3247753 A 19821223; DE 3360622 T 19831214; NO 834647 A 19831216; US 3854487 A 19870415