Document VKjjMma7Qe2DO4D3yO4826kGo
theRUBEROID Co.
PLAINTIFF'S EXHIBIT
GF-2350
- TORI
i lekart - SOUTH BOVS X* E. Morris - 800ZK HOD X. X. Talbot - 1BT TGK
ftiTjrn.TTT nEVILOR(DD FBOQHiX
Febxmry 18, 255$
to your request, C. S. Eckert, X, X. Eerris and ^rvalf discussed the propoaod Caimt* Development Program. Tha following aza the results ef ear dtscwaalan. \
a are attaching faaroto ear drawing C-5590 indicating what ve vapid prefer^as tha-final
flov efaart for tha wmfaetnre of Cslslllte. We hare ahovn. tha present formula as Is
aov osed to manufacture Calsilita. Tha determining factor as to possible vsa of
tha proposed flov chart would ba dapasdant 1900 being able to produce a Jell and hold
the jail for a
of two to fonr hours and preferably longer daring the molding
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For year information, the following formulae vara considered! / .
v
JX FORMULA. ThEHBOBBSTOS
IDBEBOID FORMULA - qUICT-SB CALSHITI
A
5.881
-1.5W Jda - 2.815 Carbonate - 2.0ldf
Fraa the foregoing, too will note each formula contains a high percentage of Cellte
and based on ear 195* sales of Calsilita totaling $863,000.00 either of tbs Shore foralao would have increased oar m saterials cost approximately $33,000.00. This is tha " prixazy reason ve believed it expedient to first attempt to fora a jell with our existing nor materials formula.
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With reference to JX Patent Ho. 2,699,097, C. K. Eckert and ^self are of the opinlcqfbe' '7i
only ralid claim this patent may hare is the plunger or piston filtration method of
adding. Unfortunately, this method of molding by forming an upper and loser filter oaks'
prodnees a high moisture content la the center of the molded pieee, thereby resulting in :- v
F- void or delanrination in the center, llao, doe to the high surface stresses produced
by this type of molding, Tharmobestos has a tendency to distort than autoclaved or dryad.'
For your information, Thermobestos is not accepted by the U. S. Vary, even though repeated
attempts hare bean made to procure Its acceptance.
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I am of the opinion that If ve can produce a product in acoordance with the attached " fiov chart the product should have a density of eleven or twelve pounds end strength "seeding our existing Cal all lie, lir voids would ba
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M1CH09120
e. R. Xckart aid aysalf are of the apdnlon that tfaa felloeing program tiunQ.il ha developed ta pradoae i^roved precision aoldsd Calailite at tha reasonable net pram.
1. to^ai'aCairlitant Attorney to* investigate peeirthle lniringeeant of oar proposed
process, aa against JX*a patant Xo. 2,699,097* arasy ether onexpired existing
patents.,'
2. Proceed tnanitiitalj to conduct export amts to datendne if oar existing CdaUlte
formic can ha jallad and held is a jailed state.
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3. If the above itans ana aad two arc favorable, proceed to construct as inexpensive ..... pilot plant sixer and filtration pipe and block aolds.
lu Cbndoet experiments on pilot plant equipment.
Z boliava it expedient to advise pet at this tine that if the proposed prooass is developed,
I can forsee only one possible problem, and that may he the fact that thin --pipe *.
covering in the larger sices nay have a tendency to distort sban renovad froa tha adds,
and this can ody_be determined ty eoerinentai end dsvelopm ^
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If yon so
capital
isvestsant
that af par
195U sales process. :
Infcreation'
the proposed yon thlsV
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MJCH09121