Document zdMXvDapQ2d3RpYZ8L6k3Bbpn

E, L DU PONT DC NEMOURS <5* COMPANY PIGMENTS DEPARTMENT 236 YANDERPOOL STREET NEWARK, NEW JERSEY Serial n *H_ 53-16 Copy No. / Period Covered NEWARK PLANT CHEMICAL DIVISION - COLORS BLUE 2R - ISCM bl o b l b pl u s v io l e t 48S OSCBNBSa 1949 - MAX 1951 H FILE: DATE: 333*41 tf?/53 C< CX NJ 5747 mm toi #1 - numerical til* 2 - Research File(223.41) 3 - library til* (223*41) 4 - J* 8. Tally/A# Siegel 5 - H* Arnoul 6 - J. H. Cooper l * F. P. Ehrlcfa * #14 Building til* * Extra 10 * Extra Serial Sol *53-1$ Copy 8l / KEWARX PLAKT PIGMENT COLOR RESEARCH REPORT FINAL REPORT Titles BLOB 2R - FROM BLOB LS PLUS VIOLET 4RH PERIOD COVERED; DECEMBER 1949 - MAT 1951 CHARGE: A-IC-20 SUBMITTED BYl P* APPROVED Bis ^ 100PER DATE SUBMITTED: 7/16/53 BATE ISSUED: DUP050069356  i KN-53-16 The original plan* for the Pigments Department phthalocyanine plant at Newport eallad for the eventual manufacture of a red shade of bine similar to that purchased from Orchem as "Monaatral" fast Bine 11 and which is sold as the barium rosinate lake "Pocono Bine BP-243-D. The imminent non-availability of "Honastral* Fast Bine 11 (formerly 21. co-aeid-pasted Bine N pins BIithosolB Violet) from archest for the production of "Pocono" Bine BP-243-B has necessitated the study of a means to produce its equivalent at Newark, Three approaches to thie problem wars indicated; first, the use of Newport finished Sine IB and Orchea** acid pasted "Uthoaol Violet 4RN both of which are standard raw materials in nee at Newark; second, the eo-solvent-ailling of the respective crudes and third, the combination of Newport finished Blue LB and separately solvent-mill ed "Lithosol" Violet 41N (see KN-53-13). The objective set by Sales for this work was a product which would have a 5# strength advantage, and be slightly red versus standard BP-243-D* smmkRt AND commsms: Rosination of a co-aolvent-milled or co-acetone ,HF milled blend of "Lithoaol" Violet 41N crude with Blue LB (17*5/32*5 ratio) yields strong. Intense products versus BP-243-B *Foeono Blue lake* Rosination of a palp blend of BP-73-P and BP-299-P(B) in a 3:1 ratio (solids basis) yields a "Pocono* Blue lake red and 5% strong against standard BP-243-B. Preliminary coat estimates do not present this product in a favorable light against the present standard process d is c u s s io n op,msmm: Soly^nt-mMM-g Co-solvent milling of "Lithosol" Violet 4BN/Blue IB (17.5/32*5 ratio) in acetone yielded an intense toner product against standard Poeono BP-243~U vlOO parts*125 parts on equal toner content basis)# Tho 15/35 ratio co-solvent milled product was green and intense* Conversion of the 17*5/32*5 ratio material to a *Pocono lake yield ed a very strong product against standard BP-243-B and against the control (prepared using H-612, Oreheo acid-pasted "Lithosol* Violet)* The product was also strong against a BP-24S-B prepared by Inking (rosinating) a pulp mix of separately solvent-milled Blue IB end "Lithosol* Violet* The latter BP-243-B was also distinctly stronger than standard BP-243-D and against the control* "Pocono* lakes DUP050069357 -2- KK-53-16 prepared from palp nixes of separately solvent ground "Lithosol* Violet end Bine LB in a 15/B5 ratio mere green, intense, end strong against standard BP-243-D. Acetone appears to be tbe most desirable grinding nedinn compared to mineral spirits or 3A alcohol* As expected, co-solvent-milled mixtures "Lithoaol* Violet are redder than the corresponding mixtures using chlorine-free CPC. BP-243-D lakes prepared by blending H-623 (Blue LB palp) with solvent milled *Utbosol* Violet in suitable proportions and then laking, appear to be fully equal to the standard in ink mill behavior, texture, strength development, and considerably superior in ultimate strength* A corresponding product prepared by Inking the co-solvent milled Blue LB/^Lithosol" Violet possesses a marked strength advantage over either of the foregoing out is inferior in rate of strength development* Evaluation in alkyd enamel against the standard shows the product to be slightly stronger, and equal in bleed (baked whits overstripe). Acetone HF-eo-milllng of Blue LB crude plus "Llthosol" Violet 4RN crude yielded a product strong against the control using "Monastral" Fast Blue 2R. Dry Blending Satisfactory results, costviae, were obtained by dry blending BP-173-D with {E)BP-273-D on the Hoover Muller* A blood consisting of 16.7$ <B)lP-273-D and $3*3$ BP-173-D was red and 5$ strong versus BP-243-D standard. Alkyd enamels prepared by co-grinding BP-173-D (d0$) and (E)BP-273-D {20%) were red and 10$ strong versus standard BP-243-B* Three different plant lots of (E)BF-273-D were used* Such dry blends present a satisfactory cost picture* Pain Blending Plant palps of BP-173-D (BP-73-P, sodium rosinate process from K-623) and{J3}BP-299-D (pulp of BF-273-D, ammonium rosinate process from H-612) were blended so as to obtain the goal product $% strong and si red against standard BP-243-D. A product contain ing 25$ of the violet lake and 75$ of the blue lake (dry basis) proved to be red and 5$ strong (170 part#*l60 parte) against BP-243-D standard. The aasstone was w dark against this standard* Attempts to prepare tbe goal "Pocono* Blue lake (5$ strong and el red against standard BP-243-D) by resiuating blended pulps DUP050069358 3 XH-53-ld of H-423 (Blue LB) and H-612 (acid-pasted "Lltfaosol Violet) acquired on part of violet (dry basis) to three parts of bite (dry basis)* The product was 10$ strong and si red against standard BP-243-0. A modified BP-243-D (*C* formula) "Pocono* Blue Bed MadS Labe las beat prepared in the Semi-works Abbe'-Lenart mixer from a palp nix of plant production of BP-73-P (Pulp of BP-173-B) sad BP-299-P (pulp of 12)BF-273~D) using a 3:1 solids basis ratio* The starting BP-73-P (dried) was intense, si grass to green and IGlslOO in strength against BP-173-D standard, and tbs BP-299-P (dried) was v bias, si dull, and 97:100 in strength versus BP-273-D standard* The resultant BP-243-t>{ C) was ws green, ve intense and 5*4$ strong spinet standard BP-243-B* Costa are discussed in JHC*e letter to BBS (4/13/51)(see appendix)* I The work summarised in this report la recorded in the following notebooks $ BB-1357 HB-135B DUP050069359 FORMULA SHEET H COLOR CODE Bapr--2Z4433~~DP(CtCEP>ATE.. 5/28/51 NAME Pocono" Blua Red 8hri OBJECT | mafacturod fma palp mix of BP-73-P and BP-299-P(E) BASED ON |<aalab. 1378*11 . ............. BATCH SIZE-MOLS. " BATCH No. OF "K" SAMPLE Lab. 1378-12 K- :> hT : MATERIAL 2711 BP-73-P (2 ; 100% V*T.': OAL. : C. C. < MANIPULATION 680.25 Plaoo in 1 gal. Abb*-Lnarfc raixor Hf m xmisLi " $m Water sooi.;; Mix txstil a eaooth potto it obtained. Add tabor at necotaary to porait good mixing. Soa into pant. Bry at UQ*F PACKAGE GOAL YIELD * j t aartoa &s. DUP050069360