Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1995-05-23
1996-09-03
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
528 74, 528125, 528128, 528190, 528206, 528212, 528219, 528271, 528298, 528332, 528339, 528344, C08G 6300
Patent
active
055525083
ABSTRACT:
Novel difunctionalized cyclobutabenzene monomers of the general formula: ##STR1## wherein Z can be hydrogens or a cyclobutane ring; and X and Y are carboxyl, amino, alcohol, isocyanate, acid halide, or bis-acyl halide groups. Exemplary difunctional bitricyclodecatriene monomers are [2,2'-bidicyclo[2.4.0]octa-1,3,5-triene]-5,5'-dicarboxylic acid (BXTA) and [2,2'-bitricyclo[6.2.0.0]deca-1,3,(6),7-triene]-7,7'-dicarboxylic acid (QXTA). The difunctionalized bitricyclodecatriene monomers can form part of a polymer backbone chain in which the multiple butane ring functionalities can be easily opened to produce strong, three-dimensional covalent bond crosslinking between polymer chains. The crosslinking can be induced simply by heating the polymer to a temperature in excess of 250.degree. C.
REFERENCES:
patent: 5418312 (1995-05-01), Martin et al.
Chemical Abstracts 110:23473, "Cyclobutarenes", Michael K. Shepard.
Mar koski Larry J.
Martin David C.
Moore Jeffrey S.
Spilman Gary E.
Walker Kenneth A.
Krass Frederick
University of Michigan, The Board of Regents
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