C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 69/34 (2006.01) C07C 49/12 (2006.01) C07C 67/347 (2006.01) C07C 255/05 (2006.01) C07C 255/19 (2006.01) C07C 317/04 (2006.01) C08L 33/06 (2006.01) C09K 5/04 (2006.01) C10M 105/36 (2006.01) C10M 105/56 (2006.01) C10M 171/00 (2006.01)
Patent
CA 2126449
2126449 9313188 PCTABS00024 Lubricants having a viscosity suitable for a refrigeration lubricant as well as good miscibility with common refrigerants (including R-134a) comprise at least one oil corresponding to the formula DAm in which D is a deprotonated residue of a Michael doner, A is a monovalent group composed of n Michael acceptor moieties, m is an integer of at least one corresponding to the valence of D, and n is an integer of at least one, preferably an integer such that the sum of n moieties in the m monovalent A groups is at least three. The novel DAm oils and other novel DAm compounds in which the sum of n moieties in the m monovalent A groups is at least three can be prepared by (1) reacting at least one Michael donor with at least one Michael acceptor in the presence of a basic compound and a phase transfer catalyst until at least some of the product molecules contain at least three acceptor moieties and (2) if desired, then subjecting the product to one or more further reactions, such as transesterification, to alter its properties. Among the more preferred products are the ester oils in which the esterifying groups contain 1-30 carbons and which have viscosities such as to make them suitable for use as lubricants.
Corporation Ethyl
Macrae & Co.
LandOfFree
Polyfunctional michael addition products and refrigeration... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polyfunctional michael addition products and refrigeration..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyfunctional michael addition products and refrigeration... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1727548