Metabolically acceptable polyisocyanate adhesives
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United States of America Patent
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May 9, 1989
Grant Date -
N/A
app pub date -
Jul 17, 1987
filing date -
Jul 17, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Metabolically-acceptable, surgical adhesives are prepared from polyisocyanates having the structral formula: ##STR1## wherein R is a polyvalent aliphatic radical of about 1 to 10 carbon atoms or a polyvalent aromatic radical of 6 to about 24 carbon atoms; A is C, S or P; Z is O or S; Y is 1 when A is C or P, and 2 when A is S; n is 1 or 2; p is at least 1; q is 0 or 1, with the proviso that when A is carbon or sulfur, q is 0; r is 0 or 1, with the proviso that when A is carbon or sulfur, r is 0; X is a residue of an organic compound having active hydrogen-containing groups; and X' is a residue of an organic compound having at least 1 active hydrogen-containing group.
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