6-K UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER
                      PURSUANT TO RULE 13a-16 OR 15d-16 OF
                       THE SECURITIES EXCHANGE ACT OF 1934

                                 April 17, 2006

                             BASF AKTIENGESELLSCHAFT
             (Exact name of Registrant as Specified in its Charter)

                                BASF CORPORATION
                 (Translation of Registrant's name into English)

               Carl Bosch Strasse 38, LUDWIGSHAFEN, GERMANY 67056
                    (Address of Principal Executive Offices)

                       Indicate by check mark whether the
                          Registrant files or will file
                         annual reports under cover Form
                                20-F or Form 40-F
                              Form 20-F X Form 40-F


                Indicate by check mark whether the Registrant by
                furnishing the information contained in this Form
                is also thereby furnishing the information to the
     Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act
                                    of 1934.
                                    Yes No X


       If "Yes" is marked, indicate below the file number assigned to the
               Registrant in connection with Rule 12g3-2(b): 82- .




April 17, 2006
P 216/06e

Michael Grabicki
Phone:     +49 621 60-99938
Cell:      +49 172 74-91891
Fax:       +49 621 60-92693
michael.grabicki@basf.com


US media contact:
Jack Maurer
Phone:     +1 973 245-6072
Cell:      +1 973 519 2982
Fax:       +1 973 245-6715
maurerj1@basf.com


Analysts/Investors contact:
Magdalena Moll
Phone:     +49 621 60-48002
Fax:       +49 621 60-22500
magdalena.moll@basf.com

BASF Aktiengesellschaft
67056 Ludwigshafen, Germany
Phone:+49 621 60-0
http://www.basf.com
Corporate Media Relations
Phone: +49 621 60-20916
Fax:     +49 621 60-92693
presse.kontakt@basf.com

BASF Extends $37 Cash Tender Offer to April 28, 2006

Ludwigshafen, Germany, April 17, 2006 - BASF Aktiengesellschaft (Frankfurt:
BAS, NYSE: BF [ADR], LSE: BFA, SWX: AN) today announced that, through its wholly
owned subsidiary,  Iron Acquisition Corporation,  it has extended the expiration
date of its $37 cash tender offer for all of the issued and  outstanding  shares
of common stock of Engelhard  Corporation (NYSE: EC) to 5:00 p.m., New York City
time, on Friday,  April 28, 2006. The tender offer had previously been scheduled
to expire at 5:00 p.m., New York City time, on Friday, April 14, 2006.

On April 11, 2006, BASF received a letter from Engelhard's financial advisor in
which Engelhard requested a firm offer no later than April 19, 2006. BASF
continues its review of non-public information provided by Engelhard and has not
decided whether to submit a revised offer to Engelhard's management and, if it
does, at what price.

BASF has been informed by The Bank of New York, the Depositary for the offer,
that, as of 5:00 p.m., New York City time, on April 14, 2006, a total of 654,180
shares of Engelhard common stock had been tendered into the offer and not
withdrawn. As a consequence of the extension of the expiration date, holders of
Engelhard common stock may tender their shares until 5:00 p.m., New York City
time, on Friday, April 28, 2006, unless the offer is further extended.


Page 2                                                              P 216/06e

BASF is the world's leading chemical company: The Chemical Company. Its
portfolio ranges from chemicals, plastics, performance products, agricultural
products and fine chemicals to crude oil and natural gas. As a reliable partner
to virtually all industries, BASF's intelligent system solutions and high-value
products help its customers to be more successful. BASF develops new
technologies and uses them to open up additional market opportunities. It
combines economic success with environmental protection and social
responsibility, thus contributing to a better future. In 2005, BASF had
approximately 81,000 employees and posted sales of more than (euro)42.7 billion.
BASF shares are traded on the stock exchanges in Frankfurt (BAS), London (BFA),
New York (BF) and Zurich (AN). Further information on BASF is available on the
Internet at www.basf.com.

BASF currently intends to solicit proxies for use at Engelhard's 2006 annual
meeting of stockholders, or at any adjournment or postponement thereof, to vote
in favor of BASF's nominees identified in the revised preliminary proxy
statement on Schedule 14A filed with the U.S. Securities and Exchange Commission
(the "SEC"), and to vote on any other matters that shall be voted upon at
Engelhard's 2006 annual meeting of stockholders. On February 27, 2006, BASF
filed a revised preliminary proxy statement on Schedule 14A with the SEC in
connection with this solicitation of proxies. All Engelhard stockholders are
strongly encouraged to read the revised preliminary proxy statement and the
definitive proxy statement when it is available, because they contain important
information. Engelhard stockholders may obtain copies of the revised preliminary
proxy statement and related materials for free at the SEC's website at
www.sec.gov.

The identity of people who, under SEC rules, may be considered "participants in
a solicitation" of proxies from Engelhard stockholders for use at Engelhard's
2006 annual meeting of stockholders and a description of their direct and
indirect interests in the solicitation, by security holdings or otherwise, are
contained in the revised preliminary proxy statement on Schedule 14A that BASF
filed with the SEC on February 27, 2006.

This press release is provided for informational purposes only and is neither an
offer to purchase nor a solicitation of an offer to sell any securities of
Engelhard Corporation. Any offers to purchase or solicitation of offers to sell
will be made only pursuant to the tender offer statement (including the offer to
purchase, the letter of transmittal and other offer documents), which was filed
with the SEC on January 9, 2006. Engelhard stockholders are advised to read
these documents and any other documents relating to the tender offer that are
filed with the SEC carefully and in their entirety because they contain
important information. Engelhard stockholders may obtain copies of these
documents for free at the SEC's website at www.sec.gov or by calling Innisfree
M&A Incorporated, the Information Agent for the offer, at +1 877 750 5837 (Toll
Free from the U.S. and Canada) or 00800 7710 9971 (Toll Free from Europe).


Page 3                                                             P216/06e

This press release contains forward-looking statements. All statements contained
in this press release that are not clearly historical in nature or that
necessarily depend on future events are forward-looking, and the words
"anticipate," "believe," "expect," "estimate," "plan," and similar expressions
are generally intended to identify forward-looking statements. These statements
are based on current expectations, estimates and projections of BASF management
and currently available information. They are not guarantees of future
performance, involve certain risks and uncertainties that are difficult to
predict and are based upon assumptions as to future events that may not prove to
be accurate.

Many factors could cause the actual results, performance or achievements of BASF
to be materially different from those that may be expressed or implied by such
statements. Such factors include those discussed in BASF's Form 20-F filed with
the SEC.




                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this Current Report to be signed on its behalf by the
undersigned, thereunto duly authorized.


                                  BASF Aktiengesellschaft


Date:April 17, 2006               By: /s/ Elisabeth Schick
                                  ------------------------------------
                                  Name:  Elisabeth Schick
                                  Title: Director Site Communications
                                  Ludwigshafen and Europe


                                  By: /s/ Christian Schubert
                                  ------------------------------------
                                  Name:  Christian Schubert
                                  Title: Director Corporate Communications
                                  BASF Group