Polymerizable cyclic urea derivatives and polymers having a pend

Details Polymerizable cyclic urea derivatives and polymers having a pend Polymerizable cyclic urea derivatives and polymers having a pend

1991-04-10

1993-01-12

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

540460, 526258, 526259, 526263, 526264, 526265, 526302, 5263073, 5263074, C08F 2240, C08F12240, C08F22240, C07D24304

Patent

active

051791846

ABSTRACT:
The present invention relates to polymerizable cyclic urea derivatives which can be thermally split to give rise to an isocyanate group; and to a polymer having cyclic urea pendant groups, which can be cured by heating without any additional curing agent such as an isocyanate blocked with a volatile lower molecular weight material, so that volatile material is not released in a thermal curing process.

REFERENCES:
patent: 4104220 (1978-08-01), Sims
patent: 4319032 (1982-03-01), Sanori
patent: 4766221 (1988-08-01), Floyd
patent: 4777265 (1988-10-01), Merger
Journal of Organic Chemistry, vol. 29, No. 11, "Some Reactions of Ethylene Diisocyanate", Tilley et al., pp. 3347-3350.
Patent Abstracts of Japan, vol. 11, No. 133, Apr. 25, 1987, 61-271277-A.

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