Document 9158MV11e9Yakvm7jZXZpwOmq

-E. I. DO PONT DE NEMOURS AND COMPANY Pigments Department CCI C. E, Nolle, Figm,, Wilmington L. A, Schlapfer, Plgm., Chestnut Run J. R. Webster, Pigm., Chestnut Run E. W. Gillow, Pigm* Newport A. E, Lewis, Pigm., Newport V. J. Lewis, Pigm., Newport A. P. Smith, Jr., Pigm., Newport R. H. Wetzel, Pigm., Newport H, Matrick, Pigm., Newark B. H. Perkins, Pigm., Newark Newark, New Jersey January 14, 1975 W. S. STRUVE PIGMENTS NEWARK. REE. JJ - WSS BT-476-D 1 * COWLES1 * DISPERSIBILITY 'i A meeting was held at Chestnut Run (1-10-75) to discuss the status of BT-476-D. J. Jackson and E.W. Gillow represented R and D. Competitive Situation: Ciba Geigy LGLD is no longer being used in the trade. The reasons for this were not clarified (technical deficiencies, price structure?) Two potential consumers (R.R.Donnley and Kohl and Madden) have expressed an interest in a dry ''Cowles" dispersible product at $5.00 to {55.45 per pound, and would be willing to evaluate experimental samples. , Imperial has submitted an experimental sample to R.R. Donnley for evaluation. Marketing has not been able to obtain a sample. It appears to the writer that this is a very volatile market which will be hgihiy sensitive to flushed ink base pricii^Pstructures, which are in turn, markedly affected by CPC presscake prices. The ink maker apparently has available to him three levels of ink mill base quality (presumably at three price structures). 1) Mill base equivalent to BT-383-D dispersed to NPIRI texture 3 1/2 (a finished ink texture level). 2) Mill bases at texture level of 4-4 1/2 which requires at least one pass over a three roll mill. 3) Low grade - non standardized strength and texture grade. No specific product codes, samples, or price structure information concerning these widely varying flushed ink mill bases is available at this time. N35377 DUP050109379 Reasons for Pry Color Use A. Schlapfer stated that the primary reason for interest in a Cowles dispersible product is the potentially greater flexibility over purchased ink mill base, i.e. - not having to have several types of flushed ink base systems in storage. Other technical factors involve: 1) The difficulty in handling high viscosity ink mill bases. 2) The essentially low dispersion cost factor arising out of the fact that ink mill bases are presumably processed through a ''Cowles" for addition of waxes and other unfinished ink components, followed by a mixing pass over a three roll mill to remove gases and achieve final texture. The use of a Cowles dispersible product would not appreciably raise the cost of the ink making process, BT-476-D Status The competitive status of the Semi-Works prototype of this product is not clearly defined (vs LGLD) with early tests apparently considerably better than more recent repeat tests on same product or on repeat Seni Works trial of the same \ product prototype. Plant production shows the usual increased degradation over Semi-Works production possibly arising in the drying and pulverizing stages. Proposed Program We have on hand 13,000 lbs of recently manufactured BT-476-D in presscake form, made for sale as BT-487-P. We propose to dry out a composite quantity of these presscakes (excluding the first clean out lot) utilizing material made at a 5 hour milling cycle (to be competitive with BT-333-D and better than BT-436-P) and process it at Newark. Specific instructions on the handling of this material will be given to Process Engineering at Newark). & '5^3- This material will then be examined against: 1) LGLD 2) Commercial samples of flushed mill base presumed to be available from R. R. Donneley. If possible, cost comparisons will be made' versus this base. 3) BT-383-D tP Assuming a reasonable improvement over BT-333-D is shown, and the possibility of duplicating the commercial ink mill base exists, we will request an evaluation by R. R, Donneley and others. The extremely high dispersibility of the prototype of this product, and laboratory work up of plant material in soft vinyl, suggests consideration in applications other than ink systems. Studies will be made by R and D and Chestnut Run on suitable samples. WvVl ad-# JJ/cjg J, Jackson R and D"Division DUP050109380