TITLE: BUTADIENE MONOEPOXIDE/MALEIC ANHYDRIDE COPOLYMERS.
European Patent Application EP0524198 A1

ABSTRACT:
Abstract not available for EP0524198
Abstract of corresponding document: US5013806
Copolymers are produced when 3,4-epoxy-1-butene (EpB) is coplymerized
with maleic anhydride. The copolymerization is initiated by free
radicals, and comprises both 1,2-propagation and 1,5-propagation of
EpB. When an ether is used as the reaction solvent, the product is
soluble, and essentially composed of (a) a monomer derived from maleic
anhydride, and (b) two monomers derived from EpB. When the reaction
solvent is a ketone, the polymer product is also soluble, and
additionally contains (c) a moiety derived from a dioxolane formed in
situ. When the reaction is conducted in the presence of a non polar
(e.g., hydrocarbon or a halocarbon) solvent, or neat (i.e., in the
absence of a solvent), the polymer product is insoluble in common
organic solvents and contains (d) a symmetrical EpB dimer. This dimer
apparently does not form, or is formed to only a very slight extent,
when the polymerization is conducted in polar reaction solvents.
Polymer products with a dioxolane moiety can be made by using preformed
dioxolane in the polymerization mixture. Thus, this invention is not
limited to in situ preparation of the dioxolane from a reaction mixture
containing a ketone. Products of this invention can be cast as clear
films and can also be used as reactive polymers.

INVENTORS:
Blevins, Richard W. (US)
Turner, Richard S. (US)

APPLICATION NUMBER: EP19910905731
PUBLICATION DATE: 01/27/1993
FILING DATE: 03/14/1991

ASSIGNEE: EASTMAN KODAK CO (US)
INTERNATIONAL CLASSES: C08F20/02; C08F24/00; C08F222/06; C08F224/00; C08G59/02; C08G59/32;
C08G65/26; C08F20/00; C08F24/00; C08F222/00; C08F224/00; C08G59/00;
C08G65/00; (IPC1-7): C08F216/16; C08F222/06; C08G65/14
EUROPEAN CLASSES: C08F222/06

OTHER REFERENCES:
See references of WO 9114720A1