SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* BREGOLATO JOSE LUIZ (Last) (First) (Middle) QUAKER CHEMICAL CORPORATION ONE QUAKER PARK, 901 E. HECTOR STREET (Street) CONSHOHOCKEN PA 19428-2380 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol QUAKER CHEMICAL CORP [ KWR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) VP-Managing Director -SA
	3. Date of Earliest Transaction (Month/Day/Year) 04/30/2010
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/30/2010		M		4,700	A	$26.05	16,540	D
Common Stock	04/30/2010		S		4,700	D	$32.34	11,840	D
Common Stock	04/30/2010		M		484	A	$21.97	12,324	D
Common Stock	04/30/2010		S		484	D	$32.34	11,840	D
Common Stock	05/03/2010		M		4,216	A	$21.97	16,056	D
Common Stock	05/03/2010		S		4,216	D	$32.74	11,840	D
Common Stock	05/03/2010		M		4,700	A	$19.98	16,540	D
Common Stock	05/03/2010		S		4,700	D	$32.74	11,840	D
Common Stock	05/03/2010		M		5,700	A	$23.13	17,540	D
Common Stock	05/03/2010		S		5,700	D	$32.74	11,840	D
Common Stock	05/03/2010		M		4,924	A	$19.45	16,764	D
Common Stock	05/03/2010		S		4,924	D	$32.74	11,840	D
Common Stock	05/03/2010		M		4,768	A	$6.93	16,608	D
Common Stock	05/03/2010		S		4,768	D	$32.74	11,840	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	$26.05	04/30/2010		M			4,700	(1)	04/15/2011	Common Stock	4,700	$0.00	0	D
Employee Stock Option (right to buy)	$21.97	04/30/2010		M			484	06/15/2005	03/09/2012	Common Stock	484	$0.00	4,216	D
Employee Stock Opton (right to buy)	$21.97	05/03/2010		M			4,216	06/15/2005	03/09/2012	Common Stock	4,216	$0.00	0	D
Employee Stock Option (right to buy)	$19.98	05/03/2010		M			4,700	(2)	03/06/2013	Common Stock	4,700	$0.00	0	D
Employee Stock Option (right to buy)	$23.13	05/03/2010		M			5,700	(3)	02/22/2014	Common Stock	5,700	$0.00	0	D
Employee Stock Option (right to buy)	$19.45	05/03/2010		M			4,924	(4)	01/29/2015	Common Stock	4,924	$0.00	2,462	D
Employee Stock Option (right to buy)	$6.93	05/03/2010		M			4,768	(5)	02/25/2016	Common Stock	4,768	$0.00	9,536	D

Explanation of Responses:

1. The option vested in three annual installments: 3,525 shares on April 15, 2006, 705 shares on April 15, 2006; and 470 on April 15, 2007.

2. The option vested in three annual installments: 1,567 shares on March 6, 2007; 1,567 share on March 6, 2008; and 1,566 shares on March 6, 2009.

3. The option vested in three annual installments: 1,900 shares on February 22, 2008; 1,900 shares on February 22, 2009; and 1,900 shares on Febraury 22, 2010.

4. The option vests in three annual installments: 2,462 on January 29, 2009; 2,462 on January 29, 2010; and 2,462 on January 29, 2011.

5. The option vests in three annual installments: 4,768 shares on February 25, 2010; 4,768 shares on February 25, 2011; and 4,768 shares on February 25, 2012.

	Irene M. Kisleiko, Attorney-in-Fact for Jose Luiz Bregolato	05/04/2010
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
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