Exhibit 24 (d)

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned, a director or an
officer, or both, of Cytec Industries Inc., a Delaware corporation ("Cytec"),
does hereby make, constitute and appoint D. Lilley, J. P. Cronin and R. Smith,
the address of each of which is in care of Cytec, 5 Garret Mountain Plaza, West
Paterson, New Jersey 07424, and each of them, the true and lawful attorney for
the undersigned, with full power of substitution and revocation to each for the
undersigned, and in the name, place and stead of the undersigned, to sign in any
and all capacities and to file or cause to be filed, an annual report on Form
10-K with the Securities and Exchange Commission, pursuant to the Securities
Exchange Act of 1934, as amended, and any and all amendments to such Form 10-K,
hereby giving to each of such attorneys full power to do everything whatsoever
required or necessary to be accomplished in and about the premises as fully as
the undersigned could do if personally present, hereby ratifying and confirming
all that such attorney or substitutes or any of them shall lawfully do or cause
to be done by virtue thereof.

         IN WITNESS WHEREOF, the undersigned has set his hand as of this 19th
day of March, 2002.


                                         /s/ L. L. Hoynes, Jr.
                                         -----------------------------------
                                         L. L. Hoynes, Jr.