Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1988-05-05
1990-01-23
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528182, 528286, C08G 6944
Patent
active
048959227
ABSTRACT:
This invention disclosed a process for the synthesis of polyesteramides. By utilizing the phosphorus containing catalyst systems of the present invention, such polyesteramides can be synthesized at relatively low temperatures. The present invention specifically discloses a process for the synthesis of a polyesteramide which comprises polymerizing at least one diamine, at least one diol, and at least one dicarboxylic acid in the presence of (1) at least one acid acceptor; (2) at least one halogenated organic compound; and (3) at least one phosphorus containing compound selected from the group consisting of (a) triphenylphosphine, (b) triphenylphosphine oxide, (c) triphenylphosphine sulfide, (d) polymeric agents having pendant diphenylphosphine groups, (e) silicon-phosphorus compositions which contain at least one divalent oxygen atom which is bonded directly to a tetravalent silicon atom and a trivalent or pentavalent phosphorus atom; (f) compounds with the structural formula (C.sub.6 H.sub.5).sub.3 P=N-R, wherein R is a hydrogen atom or an alkyl group containing from 1 to 10 carbon atoms; and (g) compounds with the structural formula (C.sub.6 H.sub.5)PR.sup.1 R.sup.2 wherein R.sup.1 and R.sup.2 can be the same or different, wherein R.sup.1 is selected from the group consisting of alkyl groups containing from 1 to 10 carbon atoms and phenyl groups, and wherein R.sup.2 is an alkyl group containing from 1 to 10 carbon atoms.
REFERENCES:
patent: 4668762 (1987-05-01), Ogata
patent: 4758636 (1988-07-01), Hijikata et al.
patent: 4778873 (1988-10-01), Ogata
patent: 4804730 (1989-02-01), Ogata
Yasuda, et al., Jnl. of Polym. Sci., Polym. Chem. Ed., 1983, 21(9), 2609.2616.
Rockhill Alvin T.
Sergent Rabon
The Goodyear Tire & Rubber Company
Welsh Maurice J.
LandOfFree
Low temperature synthesis of polyesteramides does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low temperature synthesis of polyesteramides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low temperature synthesis of polyesteramides will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-645839