Document QkVzLGpDy5ebyX5233jD5J7Xk
AROCLORS -- LITERATURE & PATENT SEARCH
November 30, 1966
Composition of Matter
(1) French Addition 82,329, to Progll (addition to French l,Jl6,50l) mixing 2,4' dichlorobiphenyl with tri- and tetrachlorobiphenyl.
(2) French 1,316,501, 2/1/63, to Progll -- basic patent on 2,4' dichlorobiphenyl and mixtures thereof.
(3) U.S. 3,038,107, to Monsanto, 6/5/62 -- 2,4' Isomer and its combina tion -- probably a basic patent for Aroclor H -DK.
(4'i U.S, 2,977,516, to Monsanto, 3/28/0: -- mixtures sontai nlng 2,3,2' and 3,`+,2' isomern -- object, improved dielectric constant.
Isomerization
(1 ) U.S. 3,068,297, to Monsanto, ,12/11/62 -- elevated temperature isomerization in presence of Lewis acids -- esp. relates to Isomerization of 2,2' dihaloblphenyIs to 2,3' and 2,4' icomers -- object la to Improve dielectric constant.
\2) J. Org. Chem. 27, 2024-26 {1962). By Weingarten of Monsanto -AICI3 Induced Isomerization of chlorobiphenyIs. A pure isomer is converted to a mixture of isomers.
Additives
(1) Herman 869,823, 3/9/53 -- stabilization in capacitors by prior oartial air oxidation - same type thinking as adding anthraqulnone.
(2! U.S. 2,757,141, to Sprague Elec., 7/31/56 -- adding 0.1 to :.zooiph ray 1 as inhibitor in capacitor larpregnants.
(3*1 * * U* 5.S. 2,o36,006, to Sprague Electric, 4/21/53 -- adding <3,5 to organic nitroeamlne or nitrcso compound. U.,3. 656.074 -
adding jelected conjugated hydrocarbons.
[41 U.S. 2,017,770, to Monsanto, ll/ll/52 -- adding amine scavengers for capacitors, transformers, etc. (note: Jnd. 5 Eng. Chem, jO, 11? (1948) indicates amines are harmful 1)
[5) U.S. 2,532,616, to Monsanto, 12/5/50 -- adding C..$ z'.nc dimsthyLdithiocerbaaate inhibitor.
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TOWOLDMONOQ57655
AEOCLORS -- LITERATURE & PATENT SEARCH
November 30, 1966
Chlorination
(1' U.S. 3,029,295, to Soclete d'Slectro-Chemie, 4/10/62. Vanor phase chlorination in a fluidized bed (e.g, CuCla on carbon).
(2; German 954,366, to Farbenfabriken Bayer, 12/15/136. Using MnOs catalyst, get a product alno3t free of undesirable 4,4' isomer.
A' U.S. 2.354,313, to Monsanto, 8/1/44 .... preparation from nit'; 1tut eu diphenyls.
h 3. 1. A A A'"... to A-unr. An rAU; nr , rV/n/Ap - a -;i Aj v.'ivrr .. , .V.J. 0 i /I j
J ' U,m .
. s U->r;;
':6,04c, to Cow Chemical - - liouid nhado chlorination a. i.;sts S, SbCie, Pb.
^ic- i.K
813. to Cll, 1/bAl - - ht) interest' eg -;a;u.
(i h j ' ; '.`'to
'J A \ .. aa'-,397' to Swann Sesra: At , .12/27/32 Aing 1 . cn rstatpst bed.
liquid A;;..:;
iS British 360,04-') ;a.loo Branch Vlo, 521), to I. Sr. P'arbsnind'ih trie using a catalyst SbClc, Radiy or P03s -- asp at low tr-ivo.
fleet ion
i ' 1 British S7AAA9, to Cuprnfc, jI/ii/54 - Process for -> 'sotrolytina' purl.prog .tie'lactrie ilcuida arid for maintaininr; their purity dun lag .Aoshge . OC voitr.ra :1s Applied across oi.'scereed palm of ionic ;p nrA-y ; tiiovinr,; rise trectos. U.S. application made 4/3/cl.
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1 A"A , to Aarnani'abr`.ban buyer, 2/9/i.6
T**-a tmens
tt A. r- a \ nA tion products of esters of amhc terlc ; rA j or
J" ;;!,.;A .
AI i.OK'-s) -- includes ILnlrt u :orrge A .uhs rith
Aa~a A tin : ion is given in Cerran 933,942 , same assignee..
A:'1 UA-A 2,
"r to Ganere.i L'loctric, 7/13/46 Aging 5 lira. at
'o'At. t ;; A; p-naenea ,At ta ly.c t. Also covers sore nesor'eants.
' - 1 U o.. A.
A'A tv U.S, t a temvant, 4/12/-A - coverts a variety
of 'ttu .tt;1
;dso, ::i :hs t.ir.igned for put'if .to an Aon of ha'o-
,gAA. on 'rov .cua: j
1, ...9-, A'A, ,0 'A-'aaaA A'ccAio, 3/1.2/3 5 covurr. A yatmant
A A; A A'j--;.v
Ah, allies ;a l, etc.
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AROCLOK3 -- MCTtAi'vRE & PATENT SEARCH
November 30, 19^6
Additives (cont.)
(6; Ir,d. 1 Eng. Chem. 40, 117 ('.348) -- surveys 41 compound a as additives* to stabilize payer capacitors -- postulate mechanism oi' action of n.iChraQulnona, etc.
(7' 'J.S. 'Z,525,^75, to Neeb'.nghcuse -- aiding 0,55? nltrobensil as additivo.
0358110
TOWOLDMONOQ57657