Document ba9Vzv4dDZ574JqB3M0X9V4r3

c- / Intend l) "INDEXED ce.s J. Bo Bullitt* Wilm. J>-716- AP 16*53 D McBumsy* " D-7012 0. H. Bullitt* Exp, Sta. 3* D. Pickens* Flint ft. E looms, Ifewburgh E, A. Rodman* " 1, W. Zllff* Lab. . ft* Morgan* " ft, B. Davis* M C R. 1. Merkle* Lab, P. Robinson* " P B.Evans* " ft, B,Holmes* " L* Pi Hubbuoh* " S, LOodshalk, " K, 0, tampert, " ft. L. Selby* " B. L, Herndon* " B A,Morehe&d* " 1. L,, HcQismis* " 0. D,fteinecker* " P <* 3 Be Marco* 11 Patent Section* Marshall Lab. Library, Marshall lab. (5) ;) File* 1810 Marshall Laboratory April 13* 1953 MEMOEAIDUM HBFORT MO. ik570 PREPARED mi Jc Po 3ERTOX imiom* mm so. SAPF'LCBft OIL . XlTRODtJOTlOIs 's On ..April 2* three Rational Lead Company representatives visited the Marshall Laboratory to discuss Safflower Oil, In- oldentally there was .also gome diaeuesion of two lead pigments* .namely 1-50* Basic Lead Siilco-Gfsreiaat and 45~X*BasIc Lead Silicate. were? Present at the meeting representing national Lead Company Walter Morris*' Saw Materiel Sales Manager* Philadelphia Karel Fettewihkel* .Sales Manager* Hew York Oscar Muller* X*eelmlcai and Production Manager* Philadelphia N35470 ~2~ Those present; from Marshall Laboratory were? J. W* niff R* B* Holmes R, J. Kluberton 0. R. Volk G.- 0* Murphy H. W, LaBerge W, J. Homlbrook C. B. Reinecker P* J. De Karoo H. 0 Stauffer J. p. Sermattel D L. Herndon ) present only for discussion J. Be Oyler ) of 453t-Baslc Lead Silicate* gUMMMn national Lead Company has had about five years experi ence with Safflower Oil* which was examined first at their West Coast plant. Based on this experience-, they feel Safflower Oil is an excellent drying oil, which can advantageously replace Soya Oil and Linseed Oil in many paint applications. Rational Lead Company is also a refiner of Safflower Oil, and they have a plant in the Bast that makes refined grades of Safflower Oil from crude oil that is shipped In from the Pacific coast. They said Safflower Oil production in 1952 totalled 250 tank cars and the 1953 production is expected to reach 350 tank cars. They felt that the future supply would continue to increase with increasing demand, but could give no estimates beyond 1953. The price at present for the non-break grade of .Safflower Oil is IS# per pound In tank cars on the last Coast and they said the future price would probably b.e intermediate between that of Soya and Linseed Oils* They will accept contracts now for future delivery. national Lead ha a new lead chromate pigment under development that is called 1-50 Basic Lead Silicp-Ohpomat. Essentially, this is a lead chromate shell on a core of silica and it is claimed that this offers the advantages of straight lead chromate at a lower cost. It was also stated that their 45-B Basic Lead Silicate pigment was finding wide acceptance in .house paints and house taint primers. According t Rational Lead Company representative, 5-X Basic Lead Silicate represents the most economic form In which lead oxide can be introduced as a pigment in a white paint or primer. ' DUP030003498 Samples of National Lead s non-break Safflower Oil and M-50 Basle Lead Sillco-ehromafc are being obtained# ACTION (1) 3, P* Semsattei will compare national Lead Company's non-break Safflower Oil with the Pacific Vegetable Oil Corporation product. (2) X. L McGinnis will evaluate 1-50 Basic Lead Slitcochrosat as an economic replacement for lead chromate. (3) S L. Godshalk, K. C. Lamport and B. Morehead will evaluate M-50 Basic Lead SiXXco-ChrcmEte in specific products. (4) J. D. Pickens is requested to advise the writer whether h is interested in evaluating lf-50 .Basic Lead SiXico-Chromate in automotive primers* (5) D. L. Herndon has exposure data on 45-X Basic Lead Silicate in house paint primers, but no further action on this pigment is contemplated at this time* PXSCtJSSXQHg Safflower Oil fhe national Lead Company people confirmed previous information that Safflower Oil dries like linseed and has color retention properties similar to soya bean oil. mtional Lead has 2-1/2 years exposure on Safflower Oil in house paint formulas in the San Francisco area, and these paints were whiter but slightly mm brittle than corresponding linseed oil formulas, national .Lead is not using Safflower Oil commercially in house paints, but is using it in some interior products* Drying Properties Safflower.Oil has a longer induction period than linseed oil, but dries to about the same firmness overnight* The dried film Is harder and somewhat more brittle than that of linseed oil* The same driers are used as with linseed and soya oils* Color Betentions Color retention was claimed to be superior to soya oil. Brushabllity & Flow Superior brushabllity and flow characteristics mm also claimed. DUP030003499 Chemical Composition Safflower Oil is chemically more homogeneous than other drying oils* It contains about ?0$ llnolelc acid and a maximum of 2$ llnolenlc acid,. The oil has not been in production long enough to know how the composition may vary with different crop years. Miscellaneous The non-break grade of Safflower Oil is the lowest priced of the refined Safflower oils and this was said to be satisfactory for use in house paints and also for us in the manufacture of alkyd resins. Safflower Oil can be cooked to a gal, which is dis persible in mineral spirits. This gelled Safflower Oil dis persion is useful as a bodying agent and grinding vehicle. It was said to increase the body of a paint without impairing brushability or flow. H-50 Basic lead Silleo-Chromate This is a new lead chromate pigment which is still under development. It has not yet been released for sal, but 3 years exposure results show it to be a promising replacement for straight lead chromate and red-lead at a considerable savings in cost. M-50 has a weight per gallon of 34,1 pounds and its price Is tied to the price of pig lead according to the following formula! With pig lead at 19$ per pound, B-50 is also priced at 19$ per pound! 45$. of any increase or decrease in the pig lead price carries ever into the price of B-50. 45-K Lead Silicate This white pigment has been on the market since 1945 and is finding increasingly wide us in white house paints 4nd house paint primers. According to national Lead, 45-X Basic Lead Silicate is the most economical forsi in which a given amount of lead oxide can to introduced into a white paint product* This was not. disputed, tout there was some question as to whether the savings involved was sufficient to justify any change now in the formula of our house paint primer. This product now contains 3.4 pounds of basic lead carbonate per gallon, but is currently being revised to approximately one half this lead content. Rational Lead Company people invited us to inspect their test fences at SayvilX, Long Island, where they have Basic Lead Silie-Chromat under exposure in a number of vehicles and can also show us panels illustrating the use of 45-X Basie Lead Silicate in house paints and in house paint primers. jPStrnd 4/13/53 DUP030003500