SU701989A1 - Bis-(4-hydroxy-3, 5-ditert-butylphenyl)-3', 5'-diformylphenylmethane as inhibitor of diolefins thermal polymerization - Google Patents

Description

CtCH ,,,, T which can be used in the petrochemical industry as an inhibitor of diene hydrocarbons in a process of their release. Alkylated bisphenols are known; for use as stabilizers of polymeric materials l, closest to what is proposed by structure from the number of known ones, is bisphenol of the formula - EFFICIENT inhibitor of dnmethylformamide 2 hydrolysis. As an inhibitor of spontaneous poly- "merisadium of diene hydrocarbons in pro ™ pessa of their release and storage of forurs ( Yun was not used. It is known to use tert-butylni-rocatechine diolefins polymerization inhibitor, however, its effectiveness is insufficient. In this regard, the best inhibitors are 5m important This task is to create an effective and 1-inhibitor of diolefine huimerization, iipOHMyiitecTBeHHo, in the process of their separation.

RCiv; 6: ic - (4-- 3.-ck1re - „butnlfoy: 1;) -3. 5-d1-g) orm: ilfen11gg,; eganoM; Sbshay

Formula 1, which is a software IE.,

jiffivsepnaaioiH of diene hydrocarbons in the course of their isolation,

B IP. (. E7; ret. - i tilfen, -3, 5. Shapelphenyl tane gupuchayut on the basis of the known method of mod-modey. Em 2,6 yitre g-butylphenol with 1,3, formyl benzene in the medium solvent Example of ethanol, in the presence of As a catalyst hydroxides ni.e. meth | GSEC) for example, caustic nat. ri, at QO-62 °.,.

Bis -. (4 hydroxy-3,5. Aitret.utiphenyl). “-3 5 B di form ylphen ishde andetect e Amor (} 11Hy powder light yellow Colors with t.p., Well soluble in chlorinated hydrocarbons, in h is alcohol, benzene, toluene, diethyl ether.

Primer p. A mixture of 7.2 g of 0.044 mol liter of 1,3,5-tr fsrmnbenzol N. 18.3 g (0.088 mol) 2.6 itre-and, buckets of elol 5 0.3 ml 425 o. Jioro caustic soda nat. In 50 tai ethanol, they are heated at 6 ° C and 62 ° and stirred for 6 hours by cooling the mixture, O1 is filtered from the resulting byproduct ™ 3,3, 5 (5. tetrathrel, - butylenum tephenohnnon ( Ojl, .0.2 g) n poured into 200 ml of the pan; 1.5 ml of a cop.centro.

9:

COnSiiOU iU-iC / iOli, r. lobiBc-ijiufiti uCHfiOSi ST ((: PLT

levy ,, lee} .1.: ve; this BOOT by; hey. (pral reagent gifted). Yield 24.7 g (1OO%) (4.aexy .-. 3.5.; titer--. . - - .g. Fekil) 3.5.: Diforyi.ch (|; -: |; 1 - lmet. de powdery G59 cheeks; tza-yugo gsheta with tlsh 52-55 (O HLMSH by water from STaHOju;,.

Found,%; C 79; 8.9 (5., Like, weight, 521.

- / Hs V

Calculated%; C 79.86511 8.63, Mol. Weight 556,

Bis- (4 "oxi 3.5 .., ™ buttsl0s0: .p) n, 5 mformylphenylmeti bershil B as an inhibitor -TepMononEMepHQashchshsh in the process of the slightest fraction C from

C .... C ,, pyroliz petrol, about

As you know, with pszopeaea 6cn3iraa

Along with the deletion 1: the product is 5, the epuscium is formed by the fractions. These fractions of the co - ... d. butadiene ,, nzirep.;. indeklan, diklopentadiene, hexadiene, styrene nt, ee, that which is the most important thing in the omega grill leads to TOMj, which, when THEIR section, strings on the rectifier; x columns, takes a very high specific heat. IMAIR Aaiik. This requires a stop: proeos to clean up the от thermoplastic MU-PLA ™ through each machine,

Eff || .e to t KB Noet pre /, Agay oops bks fan o. la comparing and with gkfek

,.boo. gilinrokatehn :: :: y1: nredstoleeny :::

The results were tested by N Bies --.- (4-.: Yyuksy 3.3, o -: i-1tret .. “- bu. Pshphenyl) 3, 5 diformylfanylmethane bf

WATER EEODS

Ingkbntoo

.- ,.:: c--: -.:..-........-- ;. -;

tert 6uti PmrokE; a; -; n8о 3

Prev ozhdnoikv3 / 3

spending bootshkrokatekhin90 ,, 8

And the last connection 92 //

Laboratory tests of ish (in 8an.9SfflHbix) amnulah in the presence of.

irtTr; v.f., ..; j, .T -.-- -rlT ;. - -, -,;

Effect of CC-I v-i; :: olipOBaHaJ:, Iо :;

for 12 hours. After this, the ampoules were opened, the non-polymerization monomer was distilled off in vacuum at a temperature not higher than 120 and a residual pressure of 2 mm. The weight of the ampoule was adjusted to the desired value. Effect of absorption

Niva on the formula: 9 - -100%, rnfe

-... N.

H, "2 - the amount of thermopolymer in

Jt

as an inhibitor of the diene hydrocarbons nolimerizadii,

-Sources of information that are taken into account in the examination

1 - Chemical additives to polymers,. Handbook, Is, Himi, M., 1973, p. grams formed respectively in the absence of n in the presence of an inhibitor. As vktsno from the table proposed. Bxpheno exhibits a high efficiency of refracting Ea; to dna hydrocarbons.

Claims (3)

Invention Formula Bass. (4-hydroxy-3,5-ditert.-butylphenyl N .3,5-difor1; 1ylphenylmethane formula 2, USSR author's certificate According to application number 2366248/04, c. C O7jB3O7 / 3e 1976. 3. Inhibition of polymerization of diolvphins in the processes of their isolation and storage ShIITENeftekhim, M ,, 1974, p. 17