Document QgMKrjp3GbzxmvJ72Yzgk4vZk
J.-P. Benedlto - UCQ
-tir. T. W. Male - 300 Uad. - 203 tf. T. Buschaann - 20CL
February 2,
American Cystoscope Co. 1211 Lafayette Ave.
Bronx 5?# il* I*
&* F. J. Eallace
Centleasnj
This is to confirm our recent telephone conversation during which we discussed tubing extruded fron our "Vinylite" elastoneric extrusion conpoun;S VO-1911 Clear 01 and VO-1916 dear 01.
As the writer proraieed, we are enclosing a data sheet coy^rin^ the physical properties of these materials which we believe are self-explanatory. Aa to chemical resistance these compounds are adversely affected by chlorinated hydrocarbons, ketones, esters and soae organic acids* They have exceptional resistance to alkalies, oxidising agents and nost inorganic aside, as well as water, alcohol and aliphatic hydrocarbons*
Sines speaking with you I have checked further into the acute and subacute toxicity of DOF (dl 2-ethylhexyl phthalate) plasticiser which is used in VG-1911 and Vd-1916* Also, on Monsanto "Santiciser" plasticiser 3-16 (butyl phthalyl butyl glyeolate) which is allegedly non-toxic. According to
the ID-50 on rats subjected to single oral doses of these two plasticisers, the DOF is of a such loser order of acute toxicity than IKL6. As you nay note fron the following test data, it tales approximately twice as much DuP as &-16 to kill the required number of the rata tested*
Bliss Method IP-50 Single Oral Dose On ftlstar strain Albino Hats
D0P (dioctyl phthalate or di 2-ethylhexyl phthalate)
30*6 gna/kg.
&-16 (butyl phthalyl butyl glyoolate)
11*62 pm/kg. wt.
*+\a *
>. -
* -451 ],.* * ' tr
As to the cooperative loss of plasticissr in ester, we offer the
, fltfQbswtng data, which we feel illustrates the superiority of the DGP plasticised
~*eterial over one plasticised with 3-16.
-s-v
%
ucc
063503
A frican Cystoacope Co,
pag 2
V -.
FohpttJty 2, 1950
**. ? - ' *
* "* V
W *
i Plasticizer
% plasticiser Lost in 10 Bays Fron O.OOL" Fils In KTater it 25 C
DOP 3$
0.1
B-16
35
1-lt
For your future reference, we are enclosing copies of oar publicatione
"Behavior Of Plasticizer* in Vinyl!te Vinyl Chloride Vinyl Acetate Resina" and Acute And Subacute Toxicity Of Di (2-Ethylhexyl) Phthalate". We hope that the above information proves helpful in your evaluation of plasticised vinyl tubing, and that you will let us hear fron you if we can be of further service.
Very truly yours.
IZPetersoniGO Ends.
Technical Representative smirsios and moisihg watsriais
TTtESUO'PLASTICS SSPASTUS&T
; a*.;
3 i-j
^0. TOXiUjLuGy 0PJ.
^CC 063504