Cationic substituted 2,2,6,6-tetraalkylpiperidinyl alkoxyamines

Details Cationic substituted 2,2,6,6-tetraalkylpiperidinyl alkoxyamines Cationic substituted 2,2,6,6-tetraalkylpiperidinyl alkoxyamines

2011-03-08

2011-03-08

Wilson, James O (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07902368

ABSTRACT:
Cationic 2,2,6,6-tetraalkylpiperidinyl alkoxyamines of, for example, formula (1a) and (1b) are useful as polymerization initiators/regulators in a controlled stable free radical polymerization process to produce intercalated and/or exfoliated nanoparticles from natural or synthetic clays. Compositions comprising improved nanocomposites produced by this process are useful as, for example, coatings, sealants, caulks, adhesives and plastic additiveswhereinQ1is a direct bond or a —CH2— groupT1, T2, T3and T4are independently methyl or ethyl with the proviso that at least one is ethyl;T7and T8are hydrogen or methyl;T5and T6are hydrogen orT5and T6together are a group ═O, ═NOH, ═NO-T9orT5is hydrogen and T6is —O-T9or —NR9-T9T9is hydrogen, R9or —C(O)—R9;R9is hydrogen, C1-C18alkyl, C3-C18alkenyl, C3-C18alkynyl, phenyl or C7-C9phenylalkyl unsubstituted or substituted by hydroxy, halogen or C1-C4alkoxy;K1and K2are hydrogen, C1-C18alkyl, C5-C12cycloalkyl, phenyl or C7-C9phenylalkyl andK3is a group containing selected amine containing salts.

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