C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 43/11 (2006.01) C07C 43/23 (2006.01) C07C 217/28 (2006.01) C07C 323/12 (2006.01) C08G 65/26 (2006.01) C08G 81/00 (2006.01) C10M 107/34 (2006.01) C10M 107/44 (2006.01) C10M 107/46 (2006.01) C10M 145/34 (2006.01) C10M 145/36 (2006.01) C10M 149/12 (2006.01) C10M 151/04 (2006.01)
Patent
CA 2077885
Case 7739(2) ABSTRACT OF THE DISCLOSURE OIL-SOLUBLE POLYALKYLENE GLYCOLS A sequential block copolymer containing: (i) a moiety R1X derived from a starter molecule having at least one active hydrogen wherein R1 is either an alkyl or alkaryl group having from 1 to 30 carbon atoms, X is O,S or N, (ii) a polymeric block derived from at least one alkylene oxide of formula CxH2xO wherein x is an integer from 2 to 4, and at least 50 mole % of said polymeric block is derived from an alkylene oxide where x is 3 or 4, and (iii) a polymeric block derived from at least one alkylene oxide of formula CyH2yO wherein y is an integer in the range from 6 to characterised in that the sequential block copolymer has the formula: R1X-[(CyH2yO)m - (CxH2xO)n - H]q (I) wherein R1, X, y and x are as defined above, q is 1 when X is O or S, q is 2 when X is N; and m and n are such that the molecular weight is in the range from 600 to 4000 and the (CyH2yO) polymeric block (ii) derived from the alkylene oxide of formula CyH2yO forms from 1 to 40% by weight of the copolymer and the polymeric block derived from the alkylene oxide of formula CyH2yO constitutes the first polymeric block of the sequential block copolymer and is linked directly to the moiety R1Xis described. The alkylene oxide CxH2xO is preferably propylene oxide. The copolymer can be prepared by a two step process in which a starter molecule R1X(R2)q is reacted with CyH2yO to give an intermediate product which is then reacted with CxH2xO.
Fetherstonhaugh & Co.
Oceanfloor Limited
LandOfFree
Oil soluble polyalkylene glycols does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oil soluble polyalkylene glycols, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil soluble polyalkylene glycols will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2088963