Oligomeric cyanoguanidines hardeners for epoxy resins

Details Oligomeric cyanoguanidines hardeners for epoxy resins Oligomeric cyanoguanidines hardeners for epoxy resins

1994-06-28

1995-06-13

Sellers, Robert E.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525486, 525523, 564104, 546306, 548557, 549 68, 549480, C08L 6302, C07C27928

Patent

active

054243734

ABSTRACT:
Oligomeric cyanoguanidines of formula I ##STR1## wherein, for example, R.sup.1 and R.sup.2 are each phenyl, R is 1,4-phenylene and n is an integer from 1 to 20, are suitable latent hardeners for epoxy resins. They are readily soluble in solvents suitable for the application of epoxy resins, and the cured products obtained therewith have a high glass transition temperature.

REFERENCES:
patent: 3864313 (1975-02-01), Susman
patent: 4487964 (1984-12-01), Watson et al.
patent: 4568694 (1986-02-01), Griffin et al.
Lee, et al. Handbook of Epoxy Resins pp. 10-16.
Derwent Abst. of JP Sho 60-44543A (1985).
Mestres Ramon et al., Synthesis (1980) pp. 755-757.
Ashwa, et al. Chem. Abst. vol. 114, 1991.
Abst. 63778c (Abst. of JP 02-80483).
Mistsubishi; Chem. Absts. vol. 104, 1986.
Abst. 34891x (Abst. for JP 60-127346).

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