### Cover Letter

October 22, 2014 CONFIDENTIAL ! US EPA Office of Pollution Prevention and Toxics Confidential Business Information Center (CBIC) EPA East Building, Room 6428 1201 Constitution Ave., NW Washington, DC 20004-3302. Phone: 202-564-8930 {XXX} RE: TS-{XXX} Ladies and Gentlemen: Enclosed you will find a premanufacturing notice (PMN) for the substance known as {XXX}, known internally as the {XXX}. {XXX} In accordance with 40 CFR Section 700.45(b). the fee of $2,500.00 has been paid via pay.gov. I can be reached at {XXX}if you have any questions. Your assistance is appreciated. Sincerely, {XXX} Page 1 CBI SUBMISSION

Page 1 SANITIZED SUBMISSION74688668327 RELU141022851057362 AT14Y4

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Page 3 SANITIZED SUBMISSIONXXX XXX XXX XXX XXX XXX XXX XXX XXX

XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX 

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XXX XXX XXX GPC of PMN substance_Redacted.pdf

XXX XXX X XXX X XXX X XXX XXX X XXX X XXX X XXX XXX X XXX X XXX X XXX XXX X XXX X XXX X XXX XXX X XXX X XXX X
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### X 112128 Redacted CAS IES report of PMN substance.pdf 

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XXX See Attachment 003 (Chemical Structure Diagram of PMN Substance_Redacted.pdf)

Chemical Structure Diagram of PMN Substance_Redacted.pdf Page 8 SANITIZED SUBMISSIONXXX

Imidazoliurn,polymer with cyclic anhydride and alkenoic acid, alkali salt 

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X Leather Chemical XXX X XXX X XXX X 0 0 100 0

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See Attachment 005 (Use of the PMN Substance in Leather Production_Redacted.pdf)

Use of the PMN Substance in Leather Production_Redacted.pdf XXX 

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Page 15 SANITIZED SUBMISSIONP10SB1(a)(4)1 Part II, Section B, 1(a)(4). Operation Site Locations

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Page 16 SANITIZED SUBMISSIONPage 17 SANITIZED SUBMISSIONRelugan FS (the aqueous formulation containing the new chemical) can be used to retan all types of leather imparting excellent fullness even

from leather cut from the flanks and bellies of the animals. The resulting leather has a soft, pleasant handle and a fine, tight grain. It also has excedllent lightfastness, heat resistance, and resistance to permeability. The chief ecological advantages of this formulation containing the new chemical are that it is free of formaldehyde and phenol and it has a low residual monomer content and low inorganic salt content. It is therefore particularly recommended for use on leather that has to satisfy stringent ecological demands, such as automotive leather and leather for use in children’s footwear.

Page 18 SANITIZED SUBMISSION001 Sanitized GPC of PMN substance GPC of PMN substance_Redacted.pdf Pt.I, Sec.B, 2a. 9 002 Redacted CAS IES Report of PMN substance Redacted CAS IES report of PMN substance.pdf Pt.I, Sec.B, 2c. 1 003 Redacted Chemical Structure Diagram of PMN Substance Chemical Structure Diagram of PMN Substance_Redacted.pdf Pt.I, Sec.B, 2e. 1 004 Redacted US SDS of PMN Substance US_SDS_of_PMN_Substance_R edacted.pdf Worksheet: Other Property (Note about properties) 9 005 Sanitized Use of the PMN Substance in Leather Production Use of the PMN Substance in Leather Pt.2, Sec.B, 1a. 4

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XXX XXX 

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### X X 004 Properties measured as 30% aqueous solution Estimate Note about properties Page 20 SANITIZED SUBMISSION

### ATTACHMENT HEADER SHEET Attachment Number 001 Attachment Name Sanitized GPC of PMN substance 

### Associated PMN Section Number

Pt.I, Sec.B, 2a. Does not contain CBI 

### Report Number RELU141022851057362

### ATTACHMENT HEADER SHEET Attachment Number 002 Attachment Name Redacted CAS IES Report of PMN substance 

### Associated PMN Section Number

Pt.I, Sec.B, 2c. Does not contain CBI 

### Report Number RELU141022851057362

### ATTACHMENT HEADER SHEET Attachment Number 003 Attachment Name Redacted Chemical Structure Diagram of PMN Substance 

### Associated PMN Section Number

Pt.I, Sec.B, 2e. Does not contain CBI 

### Report Number RELU141022851057362

### ATTACHMENT HEADER SHEET Attachment Number 004 Attachment Name Redacted US SDS of PMN Substance 

### Associated PMN Section Number Worksheet: Other Property (Note about properties)

Does not contain CBI 

### Report Number RELU141022851057362

### ATTACHMENT HEADER SHEET Attachment Number 005 Attachment Name Sanitized Use of the PMN Substance in Leather Production 

### Associated PMN Section Number

Pt.2, Sec.B, 1a. Does not contain CBI 

### Report Number RELU141022851057362