POWER OF ATTORNEY



Know all by these presents, that the undersigned hereby

constitutes and appoints each of J. Mark Hollingsworth, A.

Andrew R. Louis, and Sandra K. Myers signing singly, his/her

true and lawful attorney-in-fact to



(1) execute for and on behalf of the undersigned Forms 3, 4 and

5 in accordance with Section 16(a) of the Securities Exchange

Act of 1934, as amended (the "Act"), and the rules thereunder;



(2) do and perform any and all acts for and on behalf of the

undersigned that may be necessary or desirable to complete the

execution of any such Forms 3, 4 or 5 and the timely filing of

such form with the United States Securities and Exchange

Commission and any other authority; and



(3) take any other action of any type whatsoever in connection

with the foregoing that in the opinion of such attorney-in-fact

may be of benefit to, in the best interest of, or legally

required by, the undersigned, it being understood that the

documents executed by such attorney-in-fact on behalf of the

undersigned pursuant to this Power of Attorney shall be in such

form and shall contain such terms and conditions as such

attorney-in-fact may approve in his/her discretion.



The undersigned hereby grants to each such attorney-in-fact full

power and authority to do and perform all and every act and

thing whatsoever requisite, necessary and proper to be done in

the exercise of any of the rights and powers herein granted, as

fully to all intents and purposes as such attorney-in-fact might

or could do if personally present, with full power of

substitution or revocation, hereby ratifying and confirming all

that such attorney-in-fact, or his/her substitute or

substitutes, shall lawfully do or cause to be done by virtue of

this Power of Attorney and the rights and powers herein granted.

The undersigned acknowledges that the foregoing attorneys-in-

fact, in serving such capacity at the request of the

undersigned, are not assuming any of the undersigned's

responsibilities to comply with Section 16 of the Act.



EXECUTED as of this 27th day of September 2002.



/s/ Thomas E. Barry

------------------------

Signature



Thomas E. Barry

------------------------

Printed Name