., Newark, DE 19714, U SA 2 DuPont Chemical Solutions Enterprise.

AR226-2344 ATTACHMENT 2 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPPoanrtkWerassbhuinrgg,toWneWst oVrikrsgiFnaiacility Prepared for: West VirginiaCD7heD0ap1riav2lreiMstsimtooanencn,CotWfooArVfkiErl2enQ5Av3ui0vra4oel-,ni2tSmy9E4e3ntal Protection Prepared by: DuPont EWEnngilvimnireionengrmitnoegnn,TtDaelEcShen1co9tl8ioo9gn8y (DuET) October 17,2003 ASH027184 EXP015749 September 2002MTohdreoluingghAAnualgyussist2o0f0OA3PcAtFoiOrbDeErims1p7ies,2rssi0oio0nn3s 1.

MOLYKOTE D-6600 Anti-Friction Coating: A new and innovative coating for service life dry lubrication of engine starter plungers DuPont Molykote April 2020 Application engine starter plungers Service life of engine starter plungers can be simulated on a SRV test machine with methodology defined and agreed with a major starter Tier 1 supplier 2 DOW RESTRICTED Low-pressure steel/steel material pairing test: Conditions Durability test Simulation of service life of passenger cars engine starters (linear contact, 100 N/mm2) SRV 5 test conditions Specimen arrangement Movement type Coated specimen Cylinder material (name = Zylinder-Rolle) Disc material (art # 291.150.00, Rz=0.45/0.65) Cylinder radius Cylinder length A) load corresponding to 100 N/mm2 SRV stroke SRV cycle stroke Frequency Speed Test length (corresponding to total sliding path) Cylinder vs. disc Along cylinder axis Disc 100Cr6 100Cr6 7.5 mm 22 mm 45 N 4 mm 8 mm 40 Hz 0.32 m/s 10.4 h 3 Low-pressure steel/steel material pairing test: Results SRV durability test - time to seizure [h] 44% longer 12.0 durability 10.0 8.0 6.0 4.0 2.0 0.0 D-708 D-709 D-7405 D-6600 SRV durability test - dynamic coefficient of friction 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 D-708 29% lower friction level D-709 D-7405 D-6600 MOLYKOTE D-6600 AFC Wear scar after test 4 Low-pressure: comparison PTFE vs MoS2 based AFCs SRV, linear contact, 100 N/mm2, blasting SRV low pressure durability test [h] 12.0 10.0 8.0 6.0 4.0 2.0 0.0 D-7409 106 D-6600 D-7409 D-6600 7.5 h 5 10 h Medium-pressure steel/steel material pairing test: Conditions Durability test Simulation of an automotive application (linear contact, 250 N/mm2) Cylinder (diameter: 11 mm; length: 15 mm) Disc (100Cr6) Parameters: - Stroke: 3 mm - Frequency: 25 Hz - Load: 130 N - Contact pressure (theoretical): 250 MPa - Room temperature conditions - Dry lubrication (only AFC) - AFC applied on disc - SRV III DC test machine - Pretreatment: Mn-phosphating 6 Medium-pressure steel/steel material pairing test: Results SRV durability test - time to seizure [h] 860% longer 60.0 durability 50.0 40.0 30.0 20.0 10.0 0.0 D-708 D-709 D-7405 D-6600 SRV durability test - dynamic coefficient of friction 0.30 20% lower 0.25 friction level 0.20 0.15 0.10 0.05 0.00 D-708 D-709 D-7405 D-6600 MOLYKOTE D-6600 AFC Wear scar after test 7 Thank You The information contained in this communication does not constitute an offer, does not give rise to binding obligations, and is subject to change without notice to you.

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The DuPont Company, Haskell Laboratory/or Health and Environmental Sciences, Newark, Delaware, USA 2.

A few points of clarification regarding this request: >duPont need not resubmit copies of studies already provided to EPA (e.g., under TSCA 8(e), I as FYIs, under FIFRA) although we do request that you provide a comprehensive bibliography of the studies already submitted so we can check this against our holdings.

2967893 DUPONT PVDF Use in Water & Wastewater Treatment Contact for further questions: dupont.com dupontholding.com Clean water is fundamental need for humans yet according to the United Nations, a third of the world's population is water-stressed.!

Boutonnet English Translation of Report Summary for DuPont Chemical Solutions.Enterprise 27-Jan-03 Company Sanitized.

AR226-2702 24 AR226-2702 TORONTO WORKSHOP MATERIALS September 13-14,2004 Atmospheric Chemistry of Fluorotelomer Alcohols (Part 2) Robert Waterland DuPont Engineering Research & Technol Wilmington, DE Outline do we for a initial gas phase reaction kinetics m photolysis of FTOHs do we a role of HOx and N0^ photolysis of fluoroaldehydes we heterogeneous chemistry know?

Kills tissue on contact [2]. 887 PFIB (perfluoroisobutene): Chemical warfare agent [3]. 878 SiF4 (silica tetrafluoride): highly toxic by inhalation and ingestion [1]. 680 Toxic gasses released: TFE (tetrafluoroethylene): animal carcinogen HFP (hexafluoropropene): worker toxicant TFA (trifluoroacetic acid): poisonous to plants DFA (difluoroacetic acid): Animal kidney toxicant MFA (monofluoroacetic acid): lethal to humans at low doses PFOA (perfluorooctanoic acid): animal carcinogen [4]. 554 Ultrafine particulates released (oxidized Teflon particles) [5]. 464 Lowest temperature at which Teflon particles have been measured [6]. 800 Electric coil on range top [8]. 750 Surface temperature of PTFE-coated pan after heating for 8 minutes on conventional stove [9]. 700 Preheated grill [10]. 536 Birds killed in DuPont lab experiments [5]. 500 Searing temperature for meat in oven or grill Maximum temperature for many ovens 396 Temperature of PTFE-coated light bulbs under which Missouri birds died [11]. 350 Common baking temperature 325 Birds died from preheated oven [12].

Unimatec, Gore, DuPont) Break 11 - 11:30 am Point 4 - Status update WP4 (11:30 - 12 am) Clean version of the excel file: 2020-08-07_PFAS_uses v3 All Member States to give an update on their work or outsourcing the work on the different sub-uses.

DuPont's goalisto minimize exposure.

P-1 "McCrea, Deborah" <mccrea@taftlaw.com> 03/15/2010 02:08 PM To NCIC OPPT@EPA cc "Bilott, Robert A." < bilott@taftlaw.com> bcc Subject 03/15/2010 Letter To EPA Docket Center Taft / Deborah McCrea / Legal Assistant Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 Cincinnati, Ohio 45202-3957 Tel: 513.381.2838 Fax: 513.381.0205 www.taftlaw.com / mccrea@taftlaw.com Internal Revenue Service Circular 230 Disclosure: As provided for in Treasury regulations, advice (if any) relating to federal taxes that is contained in this communication (including attachments) is not intended or written to be used, and cannot be used, for the purpose of (1) avoiding penalties under the Internal Revenue Code or (2) promoting, marketing or recommending to another party any transaction or matter addressed herein.

"McCrea, Deborah" <mccrea@taftlaw.com> 12/14/2009 03 :38 PM To NCIC OPPT@EPA cc "Bilott, Robert A."

Doos not contain TSCA cay H25231: OneGeneration Reproduction Study in Rats DuPont.9763 APPENDIX P INDIVIDUAL ANIMAL SPERM MORPHOLOGY DATA IN P; MALE RATS -- ~~ 258 `Company Sanitized.