Title:
SYNTHESIS OF AND CURING ADDITIVES FOR PHTHALONITRILES
Document Type and Number:
WIPO Patent Application WO/2014/021946
Kind Code:
A8
Abstract:
A method of: providing a solution of a dichloroaromatic compound having an electron-withdrawing group bound to each aromatic ring containing one of the chloride groups; an excess of a dihydroxyaromatic compound; an organic transition metal complex or a transition metal salt; a base; and a solvent; and heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form an aromatic ether oligomer that is a dihydroxy-terminated compound or a dimetallic salt thereof. Water formed during the heating is concurrently distilled from the solution. A method of curing a phthalonitrile monomer in the presence of an acid and a curing agent to form a phthalonitrile thermoset.
Inventors:
KELLER TEDDY M (US)
LASKOSKI MATTHEW (US)
SAAB ANDREW (US)
LASKOSKI MATTHEW (US)
SAAB ANDREW (US)
Application Number:
PCT/US2013/032051
Publication Date:
June 04, 2015
Filing Date:
March 15, 2013
Export Citation:
Assignee:
US GOVERNMENT (US)
KELLER TEDDY M (US)
LASKOSKI MATTHEW (US)
SAAB ANDREW (US)
KELLER TEDDY M (US)
LASKOSKI MATTHEW (US)
SAAB ANDREW (US)
International Classes:
C08G65/00; C08G73/00; C08G83/00; C08K5/06
Attorney, Agent or Firm:
RESSING, Amy, L. (4555 Overlook Ave. SwWashington, DC, US)
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