Process for condensing at least one epoxide on at least one cycl

Details Process for condensing at least one epoxide on at least one cycl Process for condensing at least one epoxide on at least one cycl

1990-03-12

1991-05-28

Nielsen, Earl

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

Synthetic resins

From carboxylic acid or derivative thereof

528 92, 528365, 528366, C08G 6342

Patent

active

050196430

ABSTRACT:
A process for condensing at least one aliphatic epoxide having at least 8 atoms of carbon in its molecule on at least one cyclic anhydride of a dicarboxylic acid in the presence of a catalyst consisting of at least one titanium complex of general formula (I) Ti(OR).sub.2 (L).sub.2 in which each R group independently represents one hydrocarbon group with 1 to 10 atoms of carbon and each L group represents a ligand of the diketonic beta type or of the keto-ester beta.

REFERENCES:
patent: 3424699 (1969-01-01), Stark et al.
patent: 3776978 (1973-12-01), Markovitz
patent: 3812214 (1974-05-01), Markovitz
patent: 4085250 (1978-04-01), Smith
patent: 4237242 (1980-12-01), Frankel
patent: 4297457 (1981-10-01), Stark

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