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  <TITLE> Sipex Corporation (Form: 8-K) </TITLE>
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  		UNITED STATES<BR>
  	SECURITIES AND EXCHANGE COMMISSION
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  	WASHINGTON, D.C. 20549
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  	FORM 8-K
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  	CURRENT REPORT
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  	Pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934
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  	Date of Report (Date of Earliest Event Reported):
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  	&nbsp;
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  	December 13, 2006
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  	Sipex Corporation
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  <BR>__________________________________________<BR>
  	(Exact name of registrant as specified in its charter)
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  	Delaware
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  	000-27892
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  	04-6135748
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  _____________________<BR>
  	(State or other jurisdiction
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  _____________<BR>
  	(Commission
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  ______________<BR>
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  	of incorporation)
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  	File Number)
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  	Identification No.)
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  	233 South Hillview Drive, Milpitas, California
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  	95035
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  _________________________________<BR>
  	(Address of principal executive offices)
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  ___________<BR>
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  	Registrant&#146;s telephone number, including area code:
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  	408-934-7500
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  	Not Applicable
  <BR>______________________________________________<BR>
  	Former name or former address, if changed since last report
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  	&nbsp;
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  <!-- CoverPageRegistrant END --><P><FONT SIZE="2">
  Check the appropriate box below if the Form 8-K filing is intended to
  simultaneously satisfy the filing obligation of the registrant under any
  of the following provisions:</FONT>
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  <P><FONT SIZE="2">
  [&nbsp;&nbsp;]&nbsp;&nbsp;Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<br>
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  	Item 2.05 Costs Associated with Exit or Disposal Activities.
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  On December 13, 2006, Sipex Corporation ("Sipex") announced a plan to reduce its workforce by approximately 75 employees.  This reduction is a part of a strategic restructuring plan that was implemented in response to Sipex&#x2019;s transition to a fabless semiconductor company and in an effort to reduce operating expenses and improve Sipex&#x2019;s cost structure. The reduction in workforce is expected to be completed by February 15, 2007. <br><br>The costs associated with this reduction will consist of a one-time termination charge of approximately $900,000 that will be reflected in Sipex&#x2019;s results of operations for the fourth quarter ending December 30, 2006.<br>
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  <BR><BR><BR><BR><P ALIGN="LEFT" STYLE="FONT-SIZE: 10PT">Safe Harbor Regarding Forward-Looking Statements <br><br>This Current Report on Form 8-K contains forward-looking statements including forward-looking statements regarding Sipex's anticipated reduction in workforce, its restructuring plans (including the anticipated costs and timing of such actions) and its cost structure. Actual results could differ materially from those projected in or contemplated by the forward-looking statements. Factors that could cause actual results to differ include problems or delays in reducing the cost structure of the company and the Sipex&#x2019;s inability to achieve the anticipated benefits of restructuring.  For further discussion of these risks and uncertainties, we refer you to the documents Sipex files with the SEC from time to time, including Sipex's Annual Report on Form 10-K for the year ended December 31, 2005 and Quarterly Reports on Form 10-Q for the quarter ended April 1, 2006, July 1, 2006 and September 30, 2006. All forward-looking statements are made as of today, and Sipex disclaims any duty to update such statements.<br><br><br></P><!-- PageBreak START -->
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  	SIGNATURES
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  	Pursuant to the requirements of the Securities Exchange Act of 1934, the
  	registrant has duly caused this report to be signed on its behalf by the
  	undersigned hereunto duly authorized.
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  	Sipex Corporation
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  	&nbsp;&nbsp;
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  <I>
  	December 19, 2006
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  	By:
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  <I>
  	Clyde R. Wallin
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  <I>
  	Name: Clyde R. Wallin
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  	Title: Chief Financial Officer and Senior VP of Finance
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metadata_filer: {"company-data": {"conformed-name": "SIPEX CORP", "cik": "0001007800", "assigned-sic": "3674", "irs-number": "046135748", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-27892", "film-number": "061287143"}, "business-address": {"street1": "233 SOUTH HILLVIEW DRIVE", "city": "MILPITAS", "state": "CA", "zip": "95035", "phone": "408-934-7500"}, "mail-address": {"street1": "233 SOUTH HILLVIEW DRIVE", "city": "MILPITAS", "state": "CA", "zip": "95035"}}
text: Sipex Corporation (Form: 8-K)
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  WASHINGTON, D.C. 20549
  FORM 8-K
  CURRENT REPORT
  Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
  Date of Report (Date of Earliest Event Reported):
  December 13, 2006
  Sipex Corporation
  __________________________________________
  (Exact name of registrant as specified in its charter)
  Delaware
  000-27892
  04-6135748
  _____________________
  (State or other jurisdiction
  _____________
  (Commission
  ______________
  (I.R.S. Employer
  of incorporation)
  File Number)
  Identification No.)
  233 South Hillview Drive, Milpitas, California
  95035
  _________________________________
  (Address of principal executive offices)
  ___________
  (Zip Code)
  Registrant's telephone number, including area code:
  408-934-7500
  Not Applicable
  ______________________________________________
  Former name or former address, if changed since last report
  Check the appropriate box below if the Form 8-K filing is intended to
  simultaneously satisfy the filing obligation of the registrant under any
  of the following provisions:
  [  ]  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
  [  ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
  [  ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
  [  ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
  Top of the Form
  Item 2.05 Costs Associated with Exit or Disposal Activities.
  On December 13, 2006, Sipex Corporation ("Sipex") announced a plan to reduce its workforce by approximately 75 employees.  This reduction is a part of a strategic restructuring plan that was implemented in response to Sipex's transition to a fabless semiconductor company and in an effort to reduce operating expenses and improve Sipex's cost structure. The reduction in workforce is expected to be completed by February 15, 2007.
  The costs associated with this reduction will consist of a one-time termination charge of approximately $900,000 that will be reflected in Sipex's results of operations for the fourth quarter ending December 30, 2006.
  Safe Harbor Regarding Forward-Looking Statements
  This Current Report on Form 8-K contains forward-looking statements including forward-looking statements regarding Sipex's anticipated reduction in workforce, its restructuring plans (including the anticipated costs and timing of such actions) and its cost structure. Actual results could differ materially from those projected in or contemplated by the forward-looking statements. Factors that could cause actual results to differ include problems or delays in reducing the cost structure of the company and the Sipex's inability to achieve the anticipated benefits of restructuring.  For further discussion of these risks and uncertainties, we refer you to the documents Sipex files with the SEC from time to time, including Sipex's Annual Report on Form 10-K for the year ended December 31, 2005 and Quarterly Reports on Form 10-Q for the quarter ended April 1, 2006, July 1, 2006 and September 30, 2006. All forward-looking statements are made as of today, and Sipex disclaims any duty to update such statements.
  Top of the Form
  SIGNATURES
  Pursuant to the requirements of the Securities Exchange Act of 1934, the
  	registrant has duly caused this report to be signed on its behalf by the
  	undersigned hereunto duly authorized.
  Sipex Corporation
  December 19, 2006
  By:
  Clyde R. Wallin
  Name: Clyde R. Wallin
  Title: Chief Financial Officer and Senior VP of Finance