Single component cationic palladium proinitiators for the latent polymerization of cycloolefins
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United States of America Patent
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Issued Date -
Aug 25, 2005
app pub date -
Oct 28, 2004
filing date -
Oct 31, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Palladium compound compositions are provided in accordance with Formulae [((R).sub.3E).sub.aPd(Q)(LB).sub.b].sub.p [WCA].sub.r, where ((R).sub.3E) is a Group 15 electron donor ligand, Q is an anionic ligand, LB is a Lewis base, WCA is a weakly coordinating anion, a is 1, 2 or 3, b is 0, 1 or 2, the sum of a and b is 1, 2 or 3 and each of p and r is an integer such that the molecular charge is zero, or [(E(R).sub.3)(E(R).sub.2R*)Pd(-LB)].sub.p[WCA].sub.r where E(R).sub.2R* represents a Group 15 neutral electron donor ligand and where R* is an anionic hydrocarbyl containing moiety, bonded to the Pd and having a .beta. hydrogen with respect to the Pd center. Such compound composition exhibits latent polymerization activity in the presence of polycyclic olefins.
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