Exhibit 99.1
                                                                    ------------


[CK WITCO CORPORATION LOGO]

For additional information, contact:

Investors:            Robert Harwood                     (203) 353-5437/573-3441
                      Rob Bennett                        (203) 552-2282

Media:                Patricia McLean                    (203) 552-2273


                            MERGER CREATES CK WITCO,
                 $3.3 BILLION GLOBAL SPECIALTY CHEMICAL COMPANY

               New corporate officers and board of directors named

STAMFORD,   CT,  September  1,  1999  --  Shareholders  of  Crompton  &  Knowles
Corporation and Witco  Corporation  today approved  proposals  creating CK Witco
Corporation,  and the merger  subsequently  was completed.  The new company will
begin  trading on the New York Stock  Exchange  tomorrow,  September 2 under the
ticker symbol CNW.

         "The real winners today are the customers and shareholders of CK Witco.
Our commitment to customer service,  product  innovation and value creation will
drive our new company," said Vincent A. Calarco,  president and chief  executive
officer. "We will leverage our leading market positions,  global infrastructure,
and business synergies for increased  efficiency and cost savings. We expect net
merger savings  ramping up to  approximately  $60 million per year by the second
full year of the combined operations."

         Each common share of Crompton & Knowles is automatically converted into
one common  share of CK Witco,  and each common share of Witco will be exchanged
for  0.9242  share of common  stock of CK Witco.  There are 119  million  common
shares of CK Witco  outstanding.  The transaction is tax-free to shareholders of
both companies.

         CK Witco will be organized into six operating  units and three regions,
headed by the following individuals:

          Robert W. Ackley, executive vice president, Polymer
          Processing Equipment.
          James J. Conway, executive vice president, Performance
          Chemicals and Elastomers.
          Joseph B. Eisenberg, executive vice president, Polymer
          Additives (includes Refined Products).
          Mary Gum, executive vice president, OSi (includes Industrial
          Specialties).
          Alfred F. Ingulli, executive vice president, Crop Protection.
          William A. Stephenson, executive vice president, Urethanes
          and Petroleum Additives.
          Gerald H. Fickenscher, regional vice president, Europe, Africa
          & the Middle East.
          Edward L. Hagen, regional vice president, Asia-Pacific.
          Michel J. Duchesne, regional vice president, Latin America
          (includes Mexico).



                                       2

         The company  named five senior vice  presidents  to head its  corporate
staff functions.

      Peter Barna, senior vice president and chief financial officer.
      John T. Ferguson II, senior vice president, general counsel and secretary.
      Marvin H. Happel, senior vice president, organization and administration.
      Charles J. Marsden, senior vice president, strategy and development.
      Walter K. Ruck, senior vice president, operations.

         CK Witco also named 14 members of its board of directors.  Mr. Calarco
and E. Gary Cook, chairman of the new company and former chairman of Witco, are
joined by six individuals from each of the Crompton & Knowles and Witco boards.
The board includes James A. Bitonti, Don L. Blankenship, Simeon Brinberg, Robert
A. Fox, Richard M. Hayden, Roger L. Headrick, Leo I. Higdon, Jr., Harry G. Hohn,
Nicholas Pappas, C.A. (Lance) Piccolo, Bruce F. (Toby) Wesson, and Dr. Patricia
K. Woolf.

         CK Witco Corporation is one of the world's largest  specialty  chemical
companies  with  annual  sales of about $3.3  billion.  It  provides  high-value
products  to a wide range of  customers.  The  company  will have  approximately
10,000 employees and 63 manufacturing facilities in 19 countries.




Certain  statements  made in this press release are  forward-looking  statements
that involve risks and  uncertainties.  These  statements are based on currently
available information, and the company's actual results may differ significantly
from the  results  discussed.  Investors  are  cautioned  that  there  can be no
assurance  that  the  actual  results  will not  differ  materially  from  those
suggested in such forward-looking statements.