EXHIBIT 24.4

                         ARCO CHEMICAL TECHNOLOGY, INC.

                                POWER OF ATTORNEY

     WHEREAS, ARCO CHEMICAL TECHNOLOGY, INC., a Delaware corporation (the
"Company"), a wholly owned subsidiary of Lyondell Chemical Company ("Lyondell"),
intends to file with the U.S. Securities and Exchange Commission (the
"Commission") under the Securities Act of 1933, as amended (the "Act"), a
Registration Statement on Form S-4, including one or more prospectuses, with
such amendment or amendments thereto, whether pre-effective or post-effective,
in each case as may be necessary or appropriate, together with any and all
exhibits and other documents having relation to said Registration Statement
(collectively, the "Registration Statement"), in connection with Lyondell's
offer to exchange its 10 1/2% Senior Secured Notes due 2013 registered under the
Act pursuant to the Registration Statement for a like principal amount of its
outstanding unregistered 10 1/2% Senior Secured Notes due 2013 previously issued
under Rule 144A or Regulation S under the Act.

     NOW, THEREFORE, the undersigned, in his or her capacity as a director or
officer, or both, as the case may be, of the Company, does hereby appoint Kerry
A. Galvin and T. Kevin DeNicola and each of them severally, his or her true and
lawful attorneys or attorney with power to act with or without the others and
with full power of substitution and resubstitution, to execute in his or her
name, place and stead, in his or her capacity as a director or officer or both,
as the case may be, of the Company, the Registration Statement and all
instruments necessary or incidental in connection therewith, with such amendment
or amendments thereto in each case as may be necessary or appropriate, together
with any and all exhibits and other documents relating thereto as said attorneys
or any of them shall deem necessary or incidental in connection therewith, and
to file the same or cause the same to be filed with the Commission. Each of said
attorneys shall have full power and authority to do and perform in the name and
on behalf of the undersigned, in any and all capacities, every act whatsoever
necessary or desirable to be done to the premises, as fully and to all intents
and purposes as the undersigned might or could do in person, the undersigned
hereby ratifying and approving the acts of said attorneys and each of them.

     IN WITNESS WHEREOF, the undersigned has executed this instrument on this
1st day of July, 2003.




                                              /s/ Francis P. McGrail
                                              ----------------------------------
                                              FRANCIS P. MCGRAIL
                                              PRESIDENT, TREASURER



                         ARCO CHEMICAL TECHNOLOGY, INC.

                                POWER OF ATTORNEY

     WHEREAS, ARCO CHEMICAL TECHNOLOGY, INC., a Delaware corporation (the
"Company"), a wholly owned subsidiary of Lyondell Chemical Company ("Lyondell"),
intends to file with the U.S. Securities and Exchange Commission (the
"Commission") under the Securities Act of 1933, as amended (the "Act"), a
Registration Statement on Form S-4, including one or more prospectuses, with
such amendment or amendments thereto, whether pre-effective or post-effective,
in each case as may be necessary or appropriate, together with any and all
exhibits and other documents having relation to said Registration Statement
(collectively, the "Registration Statement"), in connection with Lyondell's
offer to exchange its 10 1/2% Senior Secured Notes due 2013 registered under the
Act pursuant to the Registration Statement for a like principal amount of its
outstanding unregistered 10 1/2% Senior Secured Notes due 2013 previously issued
under Rule 144A or Regulation S under the Act.

     NOW, THEREFORE, the undersigned, in his or her capacity as a director or
officer, or both, as the case may be, of the Company, does hereby appoint Kerry
A. Galvin and T. Kevin DeNicola and each of them severally, his or her true and
lawful attorneys or attorney with power to act with or without the others and
with full power of substitution and resubstitution, to execute in his or her
name, place and stead, in his or her capacity as a director or officer or both,
as the case may be, of the Company, the Registration Statement and all
instruments necessary or incidental in connection therewith, with such amendment
or amendments thereto in each case as may be necessary or appropriate, together
with any and all exhibits and other documents relating thereto as said attorneys
or any of them shall deem necessary or incidental in connection therewith, and
to file the same or cause the same to be filed with the Commission. Each of said
attorneys shall have full power and authority to do and perform in the name and
on behalf of the undersigned, in any and all capacities, every act whatsoever
necessary or desirable to be done to the premises, as fully and to all intents
and purposes as the undersigned might or could do in person, the undersigned
hereby ratifying and approving the acts of said attorneys and each of them.

     IN WITNESS WHEREOF, the undersigned has executed this instrument on this
1st day of July, 2003.




                                    /s/ Eva Chu
                                    --------------------------------------------
                                    EVA CHU
                                    DIRECTOR



                         ARCO CHEMICAL TECHNOLOGY, INC.

                                POWER OF ATTORNEY

     WHEREAS, ARCO CHEMICAL TECHNOLOGY, INC., a Delaware corporation (the
"Company"), a wholly owned subsidiary of Lyondell Chemical Company ("Lyondell"),
intends to file with the U.S. Securities and Exchange Commission (the
"Commission") under the Securities Act of 1933, as amended (the "Act"), a
Registration Statement on Form S-4, including one or more prospectuses, with
such amendment or amendments thereto, whether pre-effective or post-effective,
in each case as may be necessary or appropriate, together with any and all
exhibits and other documents having relation to said Registration Statement
(collectively, the "Registration Statement"), in connection with Lyondell's
offer to exchange its 10 1/2% Senior Secured Notes due 2013 registered under the
Act pursuant to the Registration Statement for a like principal amount of its
outstanding unregistered 10 1/2% Senior Secured Notes due 2013 previously issued
under Rule 144A or Regulation S under the Act.

     NOW, THEREFORE, the undersigned, in his or her capacity as a director or
officer, or both, as the case may be, of the Company, does hereby appoint Kerry
A. Galvin and T. Kevin DeNicola and each of them severally, his or her true and
lawful attorneys or attorney with power to act with or without the others and
with full power of substitution and resubstitution, to execute in his or her
name, place and stead, in his or her capacity as a director or officer or both,
as the case may be, of the Company, the Registration Statement and all
instruments necessary or incidental in connection therewith, with such amendment
or amendments thereto in each case as may be necessary or appropriate, together
with any and all exhibits and other documents relating thereto as said attorneys
or any of them shall deem necessary or incidental in connection therewith, and
to file the same or cause the same to be filed with the Commission. Each of said
attorneys shall have full power and authority to do and perform in the name and
on behalf of the undersigned, in any and all capacities, every act whatsoever
necessary or desirable to be done to the premises, as fully and to all intents
and purposes as the undersigned might or could do in person, the undersigned
hereby ratifying and approving the acts of said attorneys and each of them.

     IN WITNESS WHEREOF, the undersigned has executed this instrument on this
1st day of July, 2003.




                                    /s/ Laura C. Fulton
                                    --------------------------------------------
                                    LAURA C. FULTON
                                    DIRECTOR



                         ARCO CHEMICAL TECHNOLOGY, INC.

                                POWER OF ATTORNEY

     WHEREAS, ARCO CHEMICAL TECHNOLOGY, INC., a Delaware corporation (the
"Company"), a wholly owned subsidiary of Lyondell Chemical Company ("Lyondell"),
intends to file with the U.S. Securities and Exchange Commission (the
"Commission") under the Securities Act of 1933, as amended (the "Act"), a
Registration Statement on Form S-4, including one or more prospectuses, with
such amendment or amendments thereto, whether pre-effective or post-effective,
in each case as may be necessary or appropriate, together with any and all
exhibits and other documents having relation to said Registration Statement
(collectively, the "Registration Statement"), in connection with Lyondell's
offer to exchange its 10 1/2% Senior Secured Notes due 2013 registered under the
Act pursuant to the Registration Statement for a like principal amount of its
outstanding unregistered 10 1/2% Senior Secured Notes due 2013 previously issued
under Rule 144A or Regulation S under the Act.

     NOW, THEREFORE, the undersigned, in his or her capacity as a director or
officer, or both, as the case may be, of the Company, does hereby appoint Kerry
A. Galvin and T. Kevin DeNicola and each of them severally, his or her true and
lawful attorneys or attorney with power to act with or without the others and
with full power of substitution and resubstitution, to execute in his or her
name, place and stead, in his or her capacity as a director or officer or both,
as the case may be, of the Company, the Registration Statement and all
instruments necessary or incidental in connection therewith, with such amendment
or amendments thereto in each case as may be necessary or appropriate, together
with any and all exhibits and other documents relating thereto as said attorneys
or any of them shall deem necessary or incidental in connection therewith, and
to file the same or cause the same to be filed with the Commission. Each of said
attorneys shall have full power and authority to do and perform in the name and
on behalf of the undersigned, in any and all capacities, every act whatsoever
necessary or desirable to be done to the premises, as fully and to all intents
and purposes as the undersigned might or could do in person, the undersigned
hereby ratifying and approving the acts of said attorneys and each of them.

     IN WITNESS WHEREOF, the undersigned has executed this instrument on this
1st day of July, 2003.




                                    /s/ Charles L. Hall
                                    --------------------------------------------
                                    CHARLES L. HALL
                                    DIRECTOR



                         ARCO CHEMICAL TECHNOLOGY, INC.

                                POWER OF ATTORNEY

     WHEREAS, ARCO CHEMICAL TECHNOLOGY, INC., a Delaware corporation (the
"Company"), a wholly owned subsidiary of Lyondell Chemical Company ("Lyondell"),
intends to file with the U.S. Securities and Exchange Commission (the
"Commission") under the Securities Act of 1933, as amended (the "Act"), a
Registration Statement on Form S-4, including one or more prospectuses, with
such amendment or amendments thereto, whether pre-effective or post-effective,
in each case as may be necessary or appropriate, together with any and all
exhibits and other documents having relation to said Registration Statement
(collectively, the "Registration Statement"), in connection with Lyondell's
offer to exchange its 10 1/2% Senior Secured Notes due 2013 registered under the
Act pursuant to the Registration Statement for a like principal amount of its
outstanding unregistered 10 1/2% Senior Secured Notes due 2013 previously issued
under Rule 144A or Regulation S under the Act.

     NOW, THEREFORE, the undersigned, in his or her capacity as a director or
officer, or both, as the case may be, of the Company, does hereby appoint Kerry
A. Galvin and T. Kevin DeNicola and each of them severally, his or her true and
lawful attorneys or attorney with power to act with or without the others and
with full power of substitution and resubstitution, to execute in his or her
name, place and stead, in his or her capacity as a director or officer or both,
as the case may be, of the Company, the Registration Statement and all
instruments necessary or incidental in connection therewith, with such amendment
or amendments thereto in each case as may be necessary or appropriate, together
with any and all exhibits and other documents relating thereto as said attorneys
or any of them shall deem necessary or incidental in connection therewith, and
to file the same or cause the same to be filed with the Commission. Each of said
attorneys shall have full power and authority to do and perform in the name and
on behalf of the undersigned, in any and all capacities, every act whatsoever
necessary or desirable to be done to the premises, as fully and to all intents
and purposes as the undersigned might or could do in person, the undersigned
hereby ratifying and approving the acts of said attorneys and each of them.

     IN WITNESS WHEREOF, the undersigned has executed this instrument on this
1st day of July, 2003.




                                            /s/ David J. Prilutski
                                            ------------------------------------
                                            DAVID J. PRILUTSKI
                                            DIRECTOR