Document bB57Q6XrOnnL90goGBZpRz9oo
?P.3310*
Mr*. H. E. Lackey - Building . . :-
,1 .' '
ces Dr. o.
.r. d o Po n t d e Ne mo u r s SI Co mp a n y INCOR MKATCO * Fa b r ic s k Fi n is h e s De p a r t me n t
DR. J. H. FO0LGER DIRECTOR HASKELL LABORATORY
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Wilmington, Delaware . . February 7, 1940
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TOXICITY OPJUEAB XH PAIBTS OH CHILDREH3 TOYS ARB FERHITPRE
This will acknowledge your letter of January 2Jrd, on the above subject. After reading your letter, and re viewing this matter with our Industrial Sales people. It is our conclusion that there is not a sufficient amount of business in sight,in a special finish for children's toys and furniture, to warrant an expenditure of $2000.00 to further check the toxicity characteristics of diphenyl
guanidine.
The amount of diphenyl guanidine that we use
would be very small since it would be substituted as a
drier and not as a pigment. The large quantities of lead, i
that have been used in the past in paints for juvenile
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toys and furniture, hire been present in the form of lead j
pigments. As far as our business goes, these lead pig- i
meats have been pretty well eliminated* so that the
\
toxicity hazards of such products as we now sell, have
been pretty well minimised. Such lead as may be present ;
is in the form of soluble lead drier, which is maintained I
in practically all predicts at such a low percentage as i
to be acceptable to most of the specifications which have (
recently been laid down for this class of paint,
In view of the above, we do not believe that a " study of the type that you have in mind would be approved
by our mai&gemeat.
JOHN MARSHALL
ilfi V ':
BBS/vw
ye**** it is recently being and may isell letid to definite statutory regulations with
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to tin#*
on the toxicity oJT
derivatives and
it#eif have# fr. tiia
perhaps to he involved la severe: the smmwWm* In this latter ease the are considered as prodnois of
la the body*
DUP050089733
N43069.01
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seen to oo open a very good field fox* the use of pigments contain-
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o^wtiiintHg diphenyl
oatlsts; the pyoblon of *>* toxicity
of dlohonvl aaftBijilwP bo Studied In ho Sfaak*i1.i
tw
brief, the method of study wbuld consist of the feeding of th#
diphenyl fpum+A^ma to soltable laboratory
*s: th tody -
of any signs of toxic action apen these animals (Inelndlng possible
action, upon blood' tolls .and blood pigment) and, finally, careful ^
iQioro*.pal3iol6gioal tody of the tissues of the ehlmals used.m the
xoerlmant to determine whether any orisons' of the- bod? are dastased.
jluoh an experiment would probably iapt about font* Qonthft *Qd
would boat appfoxlsiately $t000,00
..
. 1 would be eMoop Dle&sed if you ^nld efmidgw .iii'
matter end iafom at as to ebotho* such a 'Study could be approved*
QAfaeSEr.iT i^fJOBASOlOf OF
ydfiflWfbyatr TOXICOLOGY
1* Foulger, M. D, Moootop ' . ..
DUP050089734