Document GLGvJvvJgKQ137BG7V3Z3E7q

COPT CC: NEWARK. NEW JERSEY APRIL 18, 1951 DR. 0. B* KILLIAS WILMINGTC In accordance with your request, we are summarising briefly the present status of our work to develop a satisfactory substitute for BP-243-D Uhich will not depend on *Honastral" Past Blue BL (formerly Blue 2R) for its mnufaeture. this work is re stricted to the use of Newport Slue LB ami Orchea** acid pasted Llthosol Violet 4SSL# both of which are standard raw materials in use at Newark. Bone Months ago we were requested By Sales to set as our objective a product which would hare a 5% strength advantage and be slightly red versus standard BP-243-D. The following costa calculated by Mr. Wright should be construed as order of Magnitude only and are subject to confirmation on the basic of further plant experience. Experimental (5% str. & red vs. standard BP-243-D) Jam&s&PM, 482.73 O.P. 03.50 Total Mill 521.45 Standard BP--243--D 375.73 390.49 408.44 The above coats were calculated on the assumption that a satisfactory product would be made by pasts mixing in the Abbe Lenart BP-73-P {the pulp of BP-173-&1 with BP-299-P (the pulp of BP-273*B} ini a 1 to 5 ratio on a solids basis, following which the material -would be pan. dried, la are currently waiting for the . manufacture of .-satisfactory BP-73-P in the- plant, so that we nay' ' prepare several pounds of this experimental product and submit to Sales Service for evaluation against standard BP-243-D. We realize that these costs do not present the experimental product in a favorable light against our present standard process. It should he borne in mind that in selecting the 1 to 3 ratio of violet to blue, we hare been conservative! and it is quite possible that in actual practice with redder BP-299~P being available. this ratio would be lower and the cost more nearly in line with tint of COPY -2- presen% standard, In the event that solvent milled Violet 4HH should enter the ; >icture, ee could take advantage of the additional strength provided thereby and obtain a still store favorable coat* J. H* COOPER CHOTCAL DIVISION DUP050069362