Catalyst for ester metathesis

Details Catalyst for ester metathesis Catalyst for ester metathesis

1997-12-18

2000-11-07

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Process of treating scrap or waste product containing solid...

528272, 528275, 528283, 528286, 528303, 528307, 528308, 5283086, 525437, 525444, 524115, 524155, 524175, 524186, 524188, 524261, 524394, 524706, 524714, 524742, 524755, 521 40, C08J 1104, C08K 549, C08G 6378

Patent

active

061438014

ABSTRACT:
A method of forming an esterification product Comprises providing (1) a material selected from the group consisting of ester monomers, ester oligomers, ester polymers, and mixtures thereof, and (2) a catalyst selected from the group consisting of: ##STR1## and mixtures thereof. wherein D is selected from the group consisting of carbon and silicon; Q is selected from the group consisting of O, S, and NR; M is selected from the group consisting of sodium, lithium, potassium, rubidium, and cesium; R, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R', R", and R'" are each independently selected from the group consisting of H, O, halogen, Si, N, S, P, C.sub.1 to C.sub.20 linear or branched alkyl, C.sub.3 to C.sub.10 cycloalkyl, and aromatic; and reacting the material in the presence of the catalyst to form an esterification product.

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patent: 5124301 (1992-06-01), Wyness et al.
patent: 5194547 (1993-03-01), Ohashi et al.
patent: 5424420 (1995-06-01), Hasenhuettl et al.
patent: 5491226 (1996-02-01), Kenneally

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