Document VG063XDrv9EaVYV9ppy0m7deK

CojJPpJfD fe. f, p u Po n t o e Ne mo u r s & Co mp a n y \ wevouna 256 Va n d e r po o l St r e e t V\ Ne w a r k , Ne w Je r s e y ortw Page 1 of 2 Newark, New Jersey December 17, 1981 7TT --K'Xri-.'VXT'n-- F. A. WRIEOE CAP JACKSON LAB "KROLOR* FOR JAPANESE THERMOPLASTIC ROAD HARKINGS _ (Ref. PAH to DS 12/16/81)" ~ Answers to your questions developed from discussions with LWP and REP. Q. Reliably blend to color uniformity--- A. LWP has requested a sample of TORO 3500 and Nikon 8011 from Chestnut Run, Re will need to evaluate lab blends of substandard KY-7S7-D shaded with KO-789-Di believe H. W. Ott used standard product, Once we know masstone limits* we are aiming for, we'll need to run a test trial blend in an Inorganic Finishing area blender, about 2-Si lb. batch size, to determine ability (through put, laboir requirements, cycle time) to reliably blend to color uniformity, (no streaking), if important*. *D.H.Happenjans - Please provide this information. Q. Blending capacity for 300-5091 lbs. A. Based on 1982 and beyond, capacity exists. Equates to about AW Ibs/month for SOON lbs. AFS. Q. Reliably control color using substandard KY-787-0. 0 ' A. v\ Don't know until we do labafid'trial plant blends. Currently KY-787-0 S/S is blended to provide AFS sold at "Krolor" sales price. Thus, blendable S/S is sold at tap dollar. Contaminated KY-787-D, for distress sale, could be used for the road marking trade, if it is readily blendable to masstone limits of the TWO and Nikon product. While we have had a fair amount of "Krolor*' yellow contaminated with orange. In 1981, our plant programs are geared to eliminating the sources and reasons for contamination. We should not count on a supply of substandard to make a 30% cheaper product (DWH to PAW 11/25/81). Pag* 2 of 2 Q. Added costs for blending (CTL end Production Labor). A. If the operation Involves one pass co-grinding KY and HO* and blending and masstone evaluation, there shouldn't be any additional costs. Multiple passes and retesting will add to the cost of manufacture - about 5-10d/lb. to handle product more than once which includes labor, material loss, energy costs. Q. Technical effort to develop blend. A. Estimate 2 mart months. Q. How long to prepare 100 kg of each color? A. We should do this work in the finishing area, not in the standardization mixer, a conical rotating blender which does a better mixing Job than ribbon blenders. Assuming we want to pursue testing options,and developing these products, we could blend a 2-8M lb. batch in the finishing area and sample from it sometime in January. One other way to make these products is to wet blend - shade the `'Krolor" product derived from S/S Y-469-D or light yellows (or S/S YC-2/YC-3) with K0-789-D in the Krolorization process. This might result in a more reliable one pass operation, provfde an outlet for substandard continuous unit product, and meet cost of manufacture/sales requirements. We can laboratory evaluate this approach in January. We will need to determine if "Krolor" product derived from S/S sales grade chrome yellow does not degrade during thermoplastic application. The Product Center should work with production and AA8A to develop costs. DS/cjg B. Gray / RAO Division DUP050145545