Ibuprofen complexes as wood preservatives

Compositions: coating or plastic – Coating or plastic compositions – Contains fireproofing or biocidal agent

Reexamination Certificate

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C106S018360, C252S399000, C252S400100, C252S400520, C252S400540, C252S405000, C252S407000, C424S078080, C424S078090, C424S405000, C424S638000, C427S297000, C427S351000, C427S421100, C427S428010, C427S429000, C427S439000, C427S440000, C428S375000, C428S532000, C428S537100, C428S537500, C514S492000, C514S494000, C514S500000, C514S557000, C514S568000, C514S570000, C514S784000

Reexamination Certificate

active

07462227

ABSTRACT:
Complexes of ibuprofen and copper and/or zinc were solubilized in ammoniacal solution providing preservative solutions that fully penetrate wood. With loss of the ammonia from the wood, the complexes were stably retained in the wood providing a long lasting preservative.

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