FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Patterson Robert M   2. Issuer Name and Ticker or Trading Symbol POLYONE CORP [POL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chairman, President & CEO (Last) (First) (Middle) POLYONE CENTER, 33587 WALKER ROAD 3. Date of Earliest Transaction (Month/Day/Year) 08/20/2018 (Street) AVON LAKE, OH 44012 4. If Amendment, Date 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 (City) (State) (Zip) 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 08/20/2018   M   30,500 A $ 14.81 290,179.399 (1) D   Common Stock 08/20/2018   D   19,352 D $ 43.16 270,827.399 D   Common Stock 08/20/2018   M   48,800 A $ 14.61 319,627.399 D   Common Stock 08/20/2018   D   30,837 D $ 43.16 288,790.399 D   Common Stock 08/20/2018   M   30,700 A $ 23.08 319,490.399 D   Common Stock 08/20/2018   D   22,752 D $ 43.16 296,738.399 D   Common Stock 08/20/2018   M   20,500 A $ 35.07 317,238.399 D   Common Stock 08/20/2018   D   18,363 D $ 43.16 298,875.399 D   Common Stock 08/21/2018   S   20,000 D $ 43.6075 (2) 278,875.399 D   Common Stock 08/22/2018   S   19,196 D $ 43.3015 (3) 259,679.399 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

Stock Appreciation Rights

$ 14.81

08/20/2018

M

30,500

(4)

02/16/2021

Common Stock

30,500

$ 0

0

D

Stock Appreciation Rights

$ 14.61

08/20/2018

M

48,800

(5)

02/14/2022

Common Stock

48,800

$ 0

0

D

Stock Appreciation Rights

$ 23.08

08/20/2018

M

30,700

(6)

02/15/2023

Common Stock

30,700

$ 0

0

D

Stock Appreciation Rights

$ 35.07

08/20/2018

M

20,500

(7)

02/11/2024

Common Stock

20,500

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Patterson Robert M POLYONE CENTER 33587 WALKER ROAD AVON LAKE, OH 44012	X		Chairman, President & CEO

Signatures

/s/ Lisa K. Kunkle, Power of Attorney For: Robert M. Patterson		08/22/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Includes shares acquired pursuant to dividend reinvestment since the last Form 4 was filed.
(2)	The sale price is a weighted average for the sale transactions. The sales prices range from a low of $43.21 per share to a high of $43.89. Full information regarding the number of shares sold at each separate price is available upon request by the Commission staff, PolyOne Corporation or a security holder of PolyOne Corporation.
(3)	The sale price is a weighted average for the sale transactions. The sales prices range from a low of $43.12 per share to a high of $43.52 per share. Full information regarding the number of shares sold at each separate price is available upon request by the Commission staff, PolyOne Corporation, or a security holder of PolyOne Corporation.
(4)	The stock appreciation rights vested in three equal annual installments beginning February 16, 2012.
(5)	SARs become exercisable and vest only upon the achievement of both price and time requirements. To vest, each one-third of the grant must attain 10%, 15% and 20% stock appreciation, respectively (which must be maintained for a minimum of thirty consecutive trading days) from the grant date closing price of $14.61 per share and no more than one-third of the grant can vest per year during the first three years.
(6)	SARs become exercisable and vest only upon the achievement of both price and time requirements. To vest, each one-third of the grant must attain 10%, 15% and 20% stock appreciation, respectively (which must be maintained for a minimum of thirty consecutive trading days) from the grant date closing price of $23.08 per share and no more than one-third of the grant can vest per year during the first three years.
(7)	SARs become exercisable and vest only upon the achievement of both price and time requirements. To vest, each one-third of the grant must attain 10%, 15% and 20% stock appreciation, respectively (which must be maintained for a minimum of thirty consecutive trading days) from the grant date closing price of $35.07 per share and no more than one-third of the grant can vest per year during the first three years.

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