Polyisocyanato-isocyanurate, and preparation process and use of the same
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United States of America Patent
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Oct 27, 1992
Grant Date -
N/A
app pub date -
May 16, 1991
filing date -
May 24, 1990
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Polyisocyanato-isocyanurate and mixture of the same obtained by trimerizing straight chain aliphatic diisocyanate represented by the formula: OCN--R.sub.4 --NCO wherein R.sub.4 is an alkylene group having 2-12 carbon atoms and polycyclo-aliphatic diisocyanate represented by the formula: ##STR1## wherein k is an integer of 0 to 2, j and m are integers of 1 to 5, and h is an integer of 0 to 2; powder-paint curing agent which contains blocked isocyanate obtained by reacting the above raw materials with a blocking agent having at least one active hydrogen in a molecule; non-yellowing urathane paint resin prepared from the above raw materials and compound having at least two active hydrogen in a molecule; and paint composition comprising the curing agent and the resin; is disclosed.
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