Document G6NgVamgEvgKO6og7aoNe0akY

N23782 EVALUATION 0? SUSPENDING AGENTS imsral Statement: The production of exterior house paint primers high in White Lead and low in inert pigment content presents a definite problem as to suspension in the Various agents have been reconmended as aiding suspension, and it was decided to try them in a house paint primer which experience had shown to be de ficient in its suspension properties on storage. The formula selected was the early formulation of the Lincoln Paint & 'Color Company's Bare Wood Primer. formula Composition: S10 Lbs. 90 " 10 Gals. 13-1/2 Gals. 31 Gals. 20 3; 4-1/2 Gals. l/S Gal. 2-3/8 Gals. l/2 Gal. 1/2 IS Dry 1538 Dry (785) (3) (3) (29D (54S) (1257) (152) (3D (12) (1767) Basic Lead Carbonate Zinc Sulphide Bleached Linseed Oil Haw Perilla Oil Baw Perilla Oil China frood Oil Seducer linseed Oil Patty Acids Solvent Naphtha Concentrated Cobalt fieslnate Drier Lead; Manganese, Linseed Oil Drier water Anti-Skinning Solvent All paints of this series were produced in laboratory size pebble mills on a 12 hour run. Procedure; Batches of this paint were prepared using the following variations of this formula: 1. Blank - no treatment - standard formula, 2. Substitution of 2 Gals. (2S99)T for 2 Gals. (785)- (299)T has an analysis of 4.S4$ aluminum naphthenate and 95*16$ light blown linseed oil. 3* Substitution of 10 Gals. (2899)Y for 10 Gals. (785). 4. Addition of 2-1/2 Lbs. Bubberine Gel C (American Lecithin Co.) to Batch #1. The composition of Bubberine Gel C is 55*69$ Lecithin, 2.135 Phosphorous, 43*14$ Soya Bean Oil, and 1.17$ Water. 5. Addition of 5 Lbs. of Lecithin to Batch #1. 0007-SWP- 2- - 6. Addition of 5/S Gal. of CSV 1253 to Batch #1. 5/S Gal. of CTV 1253 represents 1$ of non-volatile vehicle of Batch #1. .CTV 1253 is our development of National. Lead Company's Lead Soap suspender and has an analysis of 59$ China wood oil, 34$ turpentine, and 7$ basic lead carbonate. 7- Addition of I-7/8 Gals, of CTV 1253 to Batch #1. 1-7/S Gals, of CTV 1253 Represents 3$ of non-volatile vehicle of Batch #1. 3. Addition of 2-l/2 Lbs. of 5^7 Dry (aluminum stearate) to Batch #1. 9. Addition of 2-l/2 Lbs. of 547 Dry as 3-117 to Batch #1. B-117 is composed of 32-v$ of 5^7 try (aluminum stearate), 47$ kerosene, 20^$ light blown linseed oil. 10. Substitution of Advasol #2 (Advance Solvents Coxp.) for (31) and Soligen 6$ Cobalt (Advance Solvents Corp.) for (152) in Batch #1. Analysis of Advasol #2 is 12^ metal, 8 parts of lead to 1 part manganese. 11. Addition of 2-1/2 Lbs. ITinol #646 (sdwal Laboratory, Chicago) to Batch #1. 12. Addition of 2-l/2 Lbs. Duponol (E. I. Dupont DeNemoura Co.) to Botch #1. IJ. Addition of 5 Lbs. of Crude Patty Alcohol (Advance Solvents Corp.) to Batch #1. . 14. Addition of 5 Lbs. of Hydrogenated Patty Alcohol (Advance Solvents Corp.) to Batch #1. 15* Addition of 2-l/2 Lbs. Naphthenic Acid (Advance Solvents Corp.) to Batch #1. 16. Substitution of Nuodex Company's lead, manganese, and cobalt napfathenates for those of the Advance Solvents Corp. on an equal metal basis in Batch #10. feckaae Condition after 10 Days; None of the paints ore settled badly at this time end the comparisons are made to the standard, or Batch #1. 1. Considerable settling! mostly soft.- 2. and 3. Conditions similar; both good; better than #1. Settling is less fluffy. 4. Very similar to #1. 5* Less settling than #4; slight tendency to settle. 0007-SKP-045345 6. Definite tendency to settle more than #1. 7- Dess settling than #6. More like #1. 8. Settled portion is short in nature hut very soft; better than #1. 9- Mearly as good condition as #8; better than #1. 10. Slightly more settling than #1. 11. Equal settling and similar to #1. 12. Similar to #9'. better than #1; not equal to #8. 13. Slightly softer and better than #1. 14. Hot as soft as #13; only slightly better than #1. 13- Slightly greater tendency to settle than #1. 16. Moat settling at this time of any of series; slightly greater settling than #6; definitely more settling than #10. ckage Condition after One Month; 1. Considerable settling; most soft; Borne firm. 2. Settling is softer than #1. 3* Equal to #1. 4. Suspension Blightly better than #1. 5. Suspension is better than #4 and #1. 6. Definitely harder settling than #1; unsatisfactory". 7- Much better than #6; definitely better than #1. 8. Settled portion is puffier and softer than #1. 9> Equal to #8, 10. Better than #1; does not have the firm settling on bottom. 11. Slightly better than #1; settling is soft. 12. Slightly better than #1. 13* Very slightly better than #1. 14. Slightly better than #1. 0007-SWP-045346 -4 - 15* Eoual to #1. 16. Definitely more settling than #1. forfcage Condition after G Months: The results obtained after six months'- storage are grouped "below, with the paints having the least and softest settling shown first and the least satis`factory "batches last. Croup 1. Soft settling -- very easily stirred. Best - Batch # 5 4 12 4th - " g 5th - " 9 5 Lbs. Lecithin added to hatch #1. Z-l/2. 11 it 11 n 11 11 2-1/2 " Dapanol " * " 2-1/2 " 547 Dry " " 11 2-1/2 " 547 Iffy as B 117 added to batch #1. Croup 2. Definite settling - possible to Btir up. 6 th 7th 8th 9 th 10th 11th Batch # 11. 1513- 3* 2. 1- 7/S Cals, of CTV 1253 added to batch #1. 2- 1/2 Lbs. Ninol added to batch ^1. 2-l/2 Lbs. lJoph.then.ic Acid added to batch #1. 5 Lbs. Crude Fatty Alcohol added to batch #1. 10 Gals. (2899)Y substituted in batch #1. 2 Gals. (2899)Y """ Firm settling - more difficult to break up. 12th 13th 14th 15th l6th - Batch #10. 1. 14. 166.. Substitution of Soligen Driers for Regular. Standard formula. 5 Lbs. Hydrogenated Fatty Alcohol added to batch #1. Substitution of Nttodex driers in batch #1. 5/8 Gal. of CTY 1253 added to batch #1. Conclusions; Based on the formula variations described above and from the observations Wde of package condition over a period of six months, the following summary is given. The suspending agents that performed best are: Lecithin - Rubberine Gel C - addition of 5 Lbe. to 100 Gala, lecithin - Rubberine Gel C - addition of 2-l/2 Lbs. to 100 Gals, tupanol - addition of Z-lfz Lbs. to 100 Gals. Aluminum Stearate (dry form) - 2-l/2 Lbs. per 100 Gals. Aluminum Stearate (as B 117) - 2-l/2 lbs. per 100 Gals. Using the maximum amount of National Lead Company's Shite Lead suspender gives results nearly comparable to above, but using minimum amount causes in creased settling rather than suspension. Also, using the maximum amount does not prevent early settling, but tends to keep the settling soft. 0007-SWP-045347 0007-SWP-0001 Advance Solvents Company's naphthenate driers have equal or very slightly superior suspending properties compared to standard manufactured driers, but Kuodex naplithenate driers cause harder, more firm settling than either Advance Solvents' or the regular driers, Using Crude Patty Alcohol shows some advantage over regular formula for sus pension, "but use of hydrogenated fatty alcohol with this formula showed poorer suspending properties. The following suspending agents have some advantages over the standard formula in that the settled portion is a little easier to break up, but not good enough to warrant their adoption in the proportions used. llinol Haphthenic Acid Aluminum Naphthenate Aluminum Naphthenate Crude Patty Alcohol 2-l/2 Lbs. per 100 Cals. 2-l/2 " " " 3/4 " 11 M 3"3/4 " n " " 5 11 n n 11 :MLX 0007-SWP-045348 0007-SWP-0001