Document 1gYQeyLgN5pbJoYNb0XeK2kad

E. I. DU PONT DE NEMOURS & COMPANY PIGMENTS DEPARTMENT 256 VANDERPOOL STREET NEWARK, NEW JERSEY Copy No. S Period Covered: NEWARK PLANT PIGMENT COLOR RESEARCH REPORT Final Report Pry Pigment &ren B Toner K-1913. Semi-Works end Plant Dvelojsaeat. January 1943 - October 1944 FILE DATE: 223.71 11-19-45 Serial 8o ICS--45-68 Oopy Bo. f * tiMMMtl-yi&w * Offis :ame 4I ;' i3ii^BttaSlM^ingl|lFil|e' Ioaa|tri@3 Ltd. 7 ^ '# # * I - 8* 8. Dawson, Sawark ufA " -^-^s t BEWARE PLA8T PI (Ml? COLOR BISSARCE BSP!? Final Report flties Dry Pigs&eat Oreen 3 ?oer K-1913. Sand-Works and Plant Oeralopiaent. Period Corered* January 1943 - October 1944. SOBMITflD Ml V. Otialupskl ^' fan). APPROVED 31* 9* Chalupski fry/ DATE SUBMITTED* 10-29-45 mm is s u e d * u.19^5 DUP050150826 of 'dis^ipa indetsli -in Th K-1913 oceas was carried ........... iM||t*ait d ii X$m&& i ! lit ibs 'HI of report. roduc- HHKf.'.3|8i Ifil m W00 of the pi of the 'M selfIt# ....^.jilasteb, lot it# dull |a tint, both by ruboub of eblof and '> , :Jeters .. sent*,.of four seai- ' :'i#s made, oloate plus. increase of gA of the Msulfite ester from >.l to f $ Various amounts of copperas sere tried* $h* too -batches whleh sere best la quality m dry toeera were mixed and set op as a working standard^ this was lot 6537, with which subsequeht pleat batches were - compared. Batches made by the new toner process were coaverted in the semi-works Into GA-498-8 mod G1-578-B. Bo advantage in quality was seen in these . lakes. the period fu-ly Id be September 17, 1944, t'aat batches were made, based on the best semi-works procedure. ere was some ancertainty as to the actual amount of sodium oleate - used, because of non-uniformity and unreliable analytical data. In two of th# batches, the amount of sodium* oleate was varied. Besults Of the entire series vers not at all consistent, varying from equal fS0 down W& a $20 : 0jf ji'i* was not possible to determine the causes of these variations* ill of the material made was sold Its Imperial), the war time demand for the color being such as to apparently make quality considerations unimportant. -45-1S Fii abed 6476 Finished as to-JaiM,,.,. Control btd.Gf-66-P lot 6488 reduce amt. of copperas, pH of bisulfite ester %o 7.2, use sodium oleate Converted to Converted f lot 8501 DUP050150827 i 6474 6486 H9*it*) eater pi 7*2, use sodium dilate jcgopppuearats**ajd6ju?s6tesd Finished as dry . tamer: m tifib' * 4lt Conventeil to tewiH m .Aa%i.;.... .. lot '4417 lot 6 * 6508 Other tetek numbers - see notebook for details. 6310 Jin-, 14* 1943 * first trial @f sodium oleate formula. 'Iffi Mm of 6490 sad 6493 (sea a' as Me working standard for * finis was set up 6733 Attempt to MMk 6486* krror in manipulation. I74OO July 26, 1944 Semi-works 6486 * 6498 formula. vbm like above, but reduce amount of sodium oleate. 17798 17921 like 17400 18035 18056 0 *9 18391 like above, but increase amount of sodium oleate. DUP050150828