Document mqvYNE9v1vY2RJL4J1KNkKzg4
June 299 1956
... *.*%
ar. H. I. Miller, Chief .,Poultry division '.. Agricultural Marketing* Service U. S* Department of Agriculture ' Washington, D. C.
Dear Mr. Miller*
?T \> -' ~ /:
7e are manufacturing three materials for conveyor belt uses in the food handling industries* All of these have been approved by the Yean in spection Branch of U. S. Department of Agriculture, for use in federally Inspected meat handling establishments. This is a request for apcroval for them in federally inspected poultry plants. Samples of each of the materials are enclosed, and are identified as Koroseal, Kloenseal and
Hlghseal. The composition of these is as follows!
Koroseal
( Z ` V;
Geon 03 Resin. (mixture of Hycar rubber
7<*..
and polyvinyl chloride)
Sulfur -
1
Calcium carbonate
2
Iron oxide
>
3
Titanium dioxide Zinc oxide
9 2
T- Wood.rosin
V:
to : ,o. 3
k
w-vr;-Ut Dioctyl phthalate; ,:i ax^rhiii* *Stabelan XL
7 1
Santocure (Y-cyclohexyl-2-ben*othia*ole-
1
sulfenamlde) '*;>
**
* 66.7jt sodium perborate 20* dibasic calcium phosphate
6.7? stearic add 6.7jf Geon 202 resin (polyvinyl-vinylidene
chloride)
900S9TTZ
BFG10910
\
Kleenseal
v..*
*' .
Natural rubber
h.2%
GDS rubber
10*
Calcium carbonate Clay
1h% 10%
Styrene resin
h%
Zinc oxide
2.5*
r. vi Titanium dioxide
11.5*
i-v.;Rosin oil 7 Sulfur
2* 1*
.Stalite (heptylated diphenyl- 1*
t: amine)
Fatty acid
1*
r Color and accelerator
1*
- r ?
Highseal
r--Hycar . _ . - . ... ?
i'Neoprene .
1 5 W*
Styrene resin
3.5*
Clay
18*5*
Magnesia
.
2*
Zinc oxide . Titanium dioxide
Fatty acid Mineral oil Cuoar resin
Dibutyl phthalate
.
. . IS*
1* 1*
1* 1*
."V ; ;,Ji
; .
We hope the above information will be sufficient to enable you-to approval to the use of. each of these materials*
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i
Very truly yours.
wem/lm
-
7f. K. UcCorraick, Director Department of Industrial Hygiene and Toxicology
21163007
BFG10911
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J.
March 6| 1961
Hr. R. H. Philbeck Chief Staff Officer for Chemical Control
Heat Inspection Division U. S. Dcpartiaent of Agriculture Washington 25, D. C.
Dear Nr* Ihilbeeki
This letter will confirm our telephone conversation of March 6th regarding the recipe and Intended use of White Supertax, a food conveyor belt cover, aanufactured: by us*
Composition of this compound is ae follows:
Ingredient
Percent
Acrylonitrile-butadiene polymer Polyvinyl chloride Sulfur Ultramarine Blue Clay Silicon dioxide (subnlcroo) Phenol Formaldehyde Resin Zinc Oxide Titanium Dioxide . stearic Acid :;'r: Petroleum Vex Dlbutyl Fhthalate Diphenyl Guanidine Bensothlesyl Dieulfide
40*15 12*07
80 *02 17*26. 4*02 2*40 2*00 12*08
0*40. 0*82
7*05
0.12
0*81
Toe product la to be used in conveyor systems handling meat and meet pro ducts and It is our opinion that there will be no contamination to food from its use*
We request your approval for the itu of this product in Federally Inspected handling establishments*
Sincorely yours.
9T0S9TTZ
'I'.' >
R. W. Hodreli Department of Industrial Hygiene and Toxicology
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4 '
.
* .* . .
BFG10920