CS252978B1 - Polyamide containing structural units of 2,5-bis(2,2,6,6-tetramethyl-4-piperidyloxy)hexandionic acid and method of its preparation - Google Patents

Polyamide containing structural units of 2,5-bis(2,2,6,6-tetramethyl-4-piperidyloxy)hexandionic acid and method of its preparation Download PDF

Info

Publication number
CS252978B1
CS252978B1 CS859500A CS950085A CS252978B1 CS 252978 B1 CS252978 B1 CS 252978B1 CS 859500 A CS859500 A CS 859500A CS 950085 A CS950085 A CS 950085A CS 252978 B1 CS252978 B1 CS 252978B1
Authority
CS
Czechoslovakia
Prior art keywords
bis
piperidyloxy
tetramethyl
preparation
structural units
Prior art date
Application number
CS859500A
Other languages
Czech (cs)
Slovak (sk)
Other versions
CS950085A1 (en
Inventor
Zdenek Manasek
Frantisek Vass
Jozef Luston
Gabriela Vassova
Anna Bielikova
Original Assignee
Zdenek Manasek
Frantisek Vass
Jozef Luston
Gabriela Vassova
Anna Bielikova
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zdenek Manasek, Frantisek Vass, Jozef Luston, Gabriela Vassova, Anna Bielikova filed Critical Zdenek Manasek
Priority to CS859500A priority Critical patent/CS252978B1/en
Publication of CS950085A1 publication Critical patent/CS950085A1/en
Publication of CS252978B1 publication Critical patent/CS252978B1/en

Links

Landscapes

  • Polyamides (AREA)

Description

Vynález sa týká polyamidu na báze kyseliny 2,5-bis (2,2,6,6-tetrametyl-4-piperidyloxyJhexándiovej a sposobu jeho přípravy.The invention relates to a polyamide based on 2,5-bis (2,2,6,6-tetramethyl-4-piperidyloxy) hexanedioic acid and a process for its preparation.

Stéricky bráněné aminy sú význačnou triedou světelných stabilizátorov polymérov. Nevýhodou nízkomolekulových zlúčenín tejto skupiny je ich prchavosť, extrahovateínosť a toxicita.Sterically hindered amines are a prominent class of polymer light stabilizers. The disadvantages of the low molecular weight compounds of this group are their volatility, extractability and toxicity.

Uvedené nedostatky rieši zabudovanie stabilizátore do úžitkového polyméru alebo použitie stabilizátora s vyššou molekulovou hmotnosťou. Podstatou vynálezu je polyamid obsahujúci štruktúrne jednotky kyseliny 2,5-bis (2,2,6,6-tetrametyl-4-piperidyloxy) hexándiovej vzorca IThese disadvantages are solved by incorporating the stabilizer into the useful polymer or by using a higher molecular weight stabilizer. The present invention provides a polyamide containing the structural units of 2,5-bis (2,2,6,6-tetramethyl-4-piperidyloxy) hexanedioic acid of the formula I

kde n je 2 až 100. Podstatou vynálezu je ďalej sposob přípravy zlúčeniny I, ktorý sa vyznačuje tým, že sa na dialkylestery kyseliny 2,5-bis (2,2,6,6-tetrametyl-4-piperidylo xy Jhexándiovej vzorca IIwherein n is from 2 to 100. The present invention further provides a process for the preparation of a compound of the formula I, characterized in that 2,5-bis (2,2,6,6-tetramethyl-4-piperidyloxy) hexanedioic acid II is dialkyl esters

kde R je metylová, alebo etylová skupina, působí 1,6-hexándiamínom III v suchom xylene v přítomnosti metanolátu sodného, 11tiumamidu, alebo tetraalkyltitanátu pri teplotě v rozmedzí od 110 do 160 °C po dobu 6 až 10 hodin.wherein R is a methyl or ethyl group, treated with 1,6-hexanediamine III in dry xylene in the presence of sodium methoxide, 11thium amide, or tetraalkyl titanate at a temperature ranging from 110 to 160 ° C for 6 to 10 hours.

Výhodou uvedeného vynálezu je příprava oligomérneho, až polymérneho světelného stabilizátora polyalkylpiperidínového typu so zvýšenou molekulovou hmotnostou, ktorý pri aplikácii v polymérnych materiáloch může do značné] miery eliminovat spomínané nedostatky vyskytujúce sa u nízkomolekulových zlúčenín tejto skupiny.An advantage of the present invention is the preparation of an oligomeric to polymeric light stabilizer of polyalkylpiperidine type of increased molecular weight which, when applied in polymeric materials, can largely eliminate the aforementioned drawbacks of the low molecular weight compounds of this group.

Příklad 1Example 1

K reakčnej zmesi pozostávajúcej z 0,51 g (0,001 mólu) dietylesteru kyseliny 2,5-bis(2,2,6,6-tetrametyl-4-piperidyloxy)hexándiovej, 0,116 g (0,001 mólu) 1,6-hexándiamínu v 10 ml suchého toluénu, zahriatej na 110 °C sa přidá 0,03 g metanolátu sodného ako katalyzátora. Zmes sa zahrieva 1 h pri tej istej teplote, pričom časť reakčného etanolu sa postupné oddestiluje. Potom sa teplota zvýši na 130 až 135 °C a udržiava sa po dobu 5 hodin. Počas tejto doby oddestiluje zvyšná časť reakčného etanolu a teplota sa zvýši na 160 °C. Po odstránení rozpúšťadla sa zvyšok pri nezmenej teplote podrobil vákuu 0,1 až 0,2 kPa po dobu dalších 4 hodin. Po ochladení sa surový polymér rozpustí v 20 ml toluénu, přečistí aktívnym uhlím, důkladné premyje destilovanou vodou a roztok sa vysuší bezvodým síranom sodným. Po odpaření toluénu a vysušení zvyšku vo vakuové] sušiarni pri teplote 120 °C a tlakuTo a reaction mixture consisting of 0.51 g (0.001 mol) of 2,5-bis (2,2,6,6-tetramethyl-4-piperidyloxy) hexanedioic acid diethyl ester, 0.116 g (0.001 mol) of 1,6-hexanediamine in 10 ml of dry toluene heated to 110 [deg.] C. is added 0.03 g of sodium methanolate as a catalyst. The mixture is heated at the same temperature for 1 h, while part of the ethanol is gradually distilled off. The temperature is then raised to 130-135 ° C and maintained for 5 hours. During this time, the remainder of the ethanol was distilled off and the temperature was raised to 160 ° C. After removal of the solvent, the residue was subjected to a vacuum of 0.1 to 0.2 kPa at a constant temperature for an additional 4 hours. After cooling, the crude polymer was dissolved in 20 ml of toluene, treated with charcoal, washed extensively with distilled water, and dried over anhydrous sodium sulfate. After evaporating the toluene and drying the residue in a vacuum oven at 120 ° C and pressure

0,2 kPa po dobu 4 hodin, sa získal tuhý, biely, 1'ahko spráškovatelný polymér s teplotou máknutia 96 až 102 °C s priemernou číselnou molekulovou hmotnostou v rozmedzí hodnůt 1800 až 1950 (pri použití VPO).0.2 kPa over 4 hours, a solid, white, easy-to-dust powder polymer having a softening point of 96-102 ° C with an average molecular weight ranging from 1800 to 1950 (using VPO) was obtained.

Příklad 2Example 2

Pri polykondenzácii 0,483 g (0,001 mólu) dimetylesteru kyseliny 2,5-bis(2,2,6,6-tetrainetyl-4-plperidyloxy)hexándiovej a 0,116 g (0,001 mólu) 1,6-hexándiamínu sa postupuje rovnako ako v příklade 1, len s tým rozdielom, že ako katalyzátor sa použije lítiumamid a celková doba reakcie je 6 hodin. Získá sa tuhý biely, 1'ahko spracovatelný polymér s teplotou máknutia 98 až 103 °C, s priemernou číselnou molekulovou hmotnostou v rozmedzí 3 000 až 3 300.The polycondensation of 0.483 g (0.001 mol) of 2,5-bis (2,2,6,6-tetrainethyl-4-plperidyloxy) hexanedioic acid dimethyl ester and 0.116 g (0.001 mol) of 1,6-hexanediamine was carried out as in Example 1. except that lithium amide is used as the catalyst and the total reaction time is 6 hours. A white solid, easy-to-process polymer having a softening temperature of 98 to 103 ° C, with an average molecular weight in the range of 3,000 to 3,300, is obtained.

Elementárna analýza pre C28H52N4O4Elemental analysis for C 28 H 52 N 4 O 4

Vypočítané: N — 11,01 %Calculated: N - 11.01%

Nájdené: N — 10,65 %Found: N - 10.65%

IČ spektrum (chloroform)IR spectrum (chloroform)

370 (str) — v (N-H, amid),370 (p) - in (N-H, amide),

980 (s),980 (s)

930 (s) — vas, vs (C-H),930 (s) - in as , in s (CH),

720 (s) — v (C=O),720 (s) - in (C = O),

450 (str) — δ (CHz),450 (p) - δ (CH 2),

390 + 1 370 (s) dublet — ds (gem. CH3),390 + 1370 (s) doublet - d s (gem. CH 3 ),

320 (sl) — 1» (C-N) cm1 320 (sl) -1 (CN) cm -1

Vynález má použitie pre přípravu oligomérneho, až polymérneho světelného stabilizátora polymérov, najmS polyolefínov.The invention has utility for the preparation of an oligomeric to polymeric light stabilizer of polymers, in particular polyolefins.

Claims (2)

PREDMET VYNALEZUOBJECT OF THE INVENTION 1. Polyamid obsahujúci štruktúrne jednotky kyseliny 2,5-bis(2,2,6,6-tetrametyl-4-piperidyloxyjhexándiovej vzorca IA polyamide comprising the structural units of 2,5-bis (2,2,6,6-tetramethyl-4-piperidyloxy) hexanedioic acid of the formula I -CH-C-NH-( CH^N H-CH-C-NH- (CH 2 NH) O CH3 h3C CH 3 h 3 C NN H cli3H cli 3 Cli, kde n je 2 až 100.C 1i, wherein n is 2 to 100. 2. Sposob přípravy zlůčeniny I podlá bodu 1, vyznačujúci sa tým, že sa na dialkylestery kyseliny 2,5-bis(2,2,6,6-tetrametyl-4 -piperidyloxyjhexándiovej vzorca II kde R je metylová, alebo etylová skupina, tiumamidu, alebo tetraalkyltitanátu pri teppůsobí 1,6-hexándiamínom v suchom xy- lote v rozmedzí od 110 do 160 °C po dobu 6 léně v přítomnosti metanolátu sodného, lí- až 10 hodin.2. A process for the preparation of Compound (I) according to claim 1, characterized in that to the dialkyl esters of 2,5-bis (2,2,6,6-tetramethyl-4-piperidyloxy) hexanedioic acid of the formula II wherein R is methyl or ethyl, thiumamide. or tetraalkyl titanate when treated with 1,6-hexanediamine in dry xylol in the range of from 110 to 160 ° C for 6 years in the presence of sodium methanolate, for up to 10 hours.
CS859500A 1985-12-19 1985-12-19 Polyamide containing structural units of 2,5-bis(2,2,6,6-tetramethyl-4-piperidyloxy)hexandionic acid and method of its preparation CS252978B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS859500A CS252978B1 (en) 1985-12-19 1985-12-19 Polyamide containing structural units of 2,5-bis(2,2,6,6-tetramethyl-4-piperidyloxy)hexandionic acid and method of its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS859500A CS252978B1 (en) 1985-12-19 1985-12-19 Polyamide containing structural units of 2,5-bis(2,2,6,6-tetramethyl-4-piperidyloxy)hexandionic acid and method of its preparation

Publications (2)

Publication Number Publication Date
CS950085A1 CS950085A1 (en) 1987-03-12
CS252978B1 true CS252978B1 (en) 1987-10-15

Family

ID=5445058

Family Applications (1)

Application Number Title Priority Date Filing Date
CS859500A CS252978B1 (en) 1985-12-19 1985-12-19 Polyamide containing structural units of 2,5-bis(2,2,6,6-tetramethyl-4-piperidyloxy)hexandionic acid and method of its preparation

Country Status (1)

Country Link
CS (1) CS252978B1 (en)

Also Published As

Publication number Publication date
CS950085A1 (en) 1987-03-12

Similar Documents

Publication Publication Date Title
CA2211902A1 (en) 4-acylamino piperidin-n-oxyls
CH646979A5 (en) METHOD FOR PRODUCING NEW HYDROXYLAMINE SUBSTITUTED ALIPHATIC PHOSPHONIC ACIDS.
CS252978B1 (en) Polyamide containing structural units of 2,5-bis(2,2,6,6-tetramethyl-4-piperidyloxy)hexandionic acid and method of its preparation
WO1982002046A1 (en) Method of preparation of delta2 n-heterocycles
CS252983B1 (en) Polyamide on base of 2,3-bis (1,2,2,6,6-pentamethyl-4-piperidyloxy)butandione acid and method of its preparation
FI71738C (en) EXAMINATION OF FRAMSTAELLNING AV 5,6,7,7A-TETRAHYDRO-4H-THEN (3,2-C) PYRIDIN-2-ONDERIVAT.
US3274230A (en) Pentasubstituted guanidines containing cyano groups
CS252976B1 (en) Poly(ethylene-2,3-bis/1,2,2,6,6-pentamethyl-4-piperidyloxy/butandionate)and method of its production
CS252979B1 (en) Poly(ethylene-2,5-bis/2,2,6,6-tetramethyl-4-piperidyloxy/hexandionate)and method of its preparation
RU2072985C1 (en) Method of synthesis of pelargonic acid vanilyl amide
CS226927B1 (en) Polyamides of sterically hindered piperazindione type on the basis of alpha-substituted propandionic acid
EP0108034B1 (en) Deacylation of amides
CS206541B1 (en) 15-methacroyl-7,15-diaazadispiro/5,1,5,3/-hexadecane and its preparation method
CS252982B1 (en) Copolyesters on base of poly(ethylenebutandionate)containing 2,2,6,6-tetramethyl-4-piperidylamino- and octadecylamino groups
CS225048B1 (en) The polyesters of sterically hindered propandione acid
CS225022B1 (en) Polyester light stabilizer based on alpha, alpha'-disubstituted aliphatic dicarboxylic acid tetrasubstituted piperazinedione and 1,2-ethanediol and a method for its preparation
CS229080B1 (en) Polyamides of the type of sterically hindered piperazinediones on the basis of alpha,alpha'-di-substituted dicarboxylic aliphatic acids
CS225049B1 (en) The sterically hindered piperidine on the base of alpha-monosubstituted butadiene acid
DE3211034A1 (en) 7- (ALPHA) -AMINOACYL-3-CHLORCEPHALOSPORINE, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE AS A MEDICINAL PRODUCT
Koni et al. Chiral N-(o-aryl)-thiazolidinediones: Synthesis from rhodanines and investigation on rotational enantiomers by NMR spectroscopy
CS233432B1 (en) Poly {ethylene-2- (7,15-diazadispiate 5,1,5,3] hexadecan-15-yl) propanedioate} and its preparation
US4150022A (en) Process for the production of ammonium salts of dithiocarbamic acid
DE2408171C3 (en) Silyl oxazolidinone compounds and processes for their preparation
CH422805A (en) Process for the preparation of amidines
CS250593B1 (en) Ammonium 1,5-dicyano-2,4-dioxo-8,8,10,10-tetramethyl-3,9-diazaspiro [5.5] undecane and its preparation