PL44541B1

PL44541B1 -

Info

Publication number: PL44541B1
Application number: PL44541A
Authority: PL
Filing date: 1959-07-29
Publication date: 1961-04-15

Description

Opublikowano dnia 14 czerwca 1961 r. £ liii jk Vof<» irj BIBLIOTEKA Urzedi. ?alent owego POLSKIEJ RZECZYPOSPOLITEJ LUDOWEJ OPIS PATENTOWY Nr 44541 K1..8 k, 1/40 Instytut Wlókiennictwa *) Lódz, Polska Sposób wytwarzania emulsyjnego srodka owadobójczego do nasycania tkanin Patent trwa od dnia 29 lipca 1959 r.Wynalazek dotyczy sposobu wytwarzania emulsyjnego srodka owadobójczego stosówan-rgo do nasycania tkanin.W celu nadania wyrobom wlókienniczym wla¬ sciwosci owadobójczych stosuje sie dotychczas wodne emulsje roztworów substancji owadobój¬ czych (DDT, Lindan, Dieldrin i inne) w rozpusz¬ czalnikach organicznych. Emulsje te wykazuja male powinowactwo do wlókien, a osadzanie sie srodków owadobójczych na wlóknie jest po¬ wierzchniowe, skutkiem czego pod wplywem czynników fizycznych oraz mechanicznych sa one usuwane z tkaniny, która z czasem zatraca swe wlasciwosci owadobójcze.W patencie polskim nr 38486 opisano sposób zwiekszenia powinowactwa srodków owadobój¬ czych do wlókien przez uzycie kationowych zy^ wic aminowych, krtóre zwiekszaja równiez trwa- *)¦ Wlasciciel patentu oswiadczyl, ze twórca wy¬ nalazku jest mgr Mieczyslaw Orzel. losc tych srodków. Natomiast patent nr 38487 dotyczy modyfikacji dotychczasowych receptur aipretur niespieralnych, przez wlaczenie srod¬ ków owadobójczych do skladu mas apreterskich, w celu nadania tkaninie trwalych wlasciwosci owadobójczych.Pomimo stworzenia realnych mozliwosci uzys¬ kania tkanin o wlasciwosciach owadobójczych, obydwa sposoby nie usuwaja wszystkich bra¬ ków dotychczas stosowanych emulsyjnych srod¬ ków owadobójczych, a przede wszystkim nie zjapobiegaja powstawaniu nalotu na tkaninie i nie eliminuja lotnych rozpuszczalników orga¬ nicznych. Te dwie wady ograniczaja zakres sto¬ sowania tanich i dostepnych srodków owado¬ bójczych w przemysle wlókienniczym.Szczególowe badania wykazaly, ze przyczyna nalotów na tkaninie sa silnie wyrazone wlasci¬ wosci krystalizacyjne substancji owadobójczych i z tego wzgledu po odparowaniu lotnych roz¬ puszczalników z tkaniny, krystalizuja sie onena niej w postaci kryisztalków, powodujac od¬ mienne odbiciie swiatla od ich powierzchni, co optycznie wyraza sie wt si^erdizeniLu bialego nalotu* ¦ * &<¦%-'?•. i, Wyinalazek dotyczy sposobu wytwarzania emul¬ syjnego srodka owadobójczego, wedlug którego skladniki owadobójcze rozpuszcza sie w produ¬ ktach zywicznych lub innych, zapobiegaja¬ cych ich krystalizacji, przy cizym srodek ten nie daje bialego nalotu na tkaninach impreg¬ nowanych. ; Stwierdzono, ze krystalizacji srodków owa¬ dobójczych na tkaninie oraz uzycia lotnych rozipusizozalniików do wytwarzania emulsji srod¬ ków owadobójczych mozna uniknac, rozpusz¬ czajac isiubstancje owadobójcze, zamiast w lo¬ tnych rozpuszczalnikach, w zywicach syntety¬ cznych oraz w substancjach zapobiegajacych ich krystalizacji. Jako zywice syntetyczne na¬ daja sie do tego celu nierozpuszczalne w wo¬ dzie produkty kondensacji glikolu lub gli¬ cerolu z bezwodnikiem ftalowym (zywice aiki¬ dowe), modyfikowane olejami schnacymi lub niemodyfikowane, eteryfikowane i estryfikowa¬ ne produkty kondensacji melaminy lub mocz¬ nika z formaldehydem oraz dalsze ich po¬ chodne z trójetanolamina, zywice poliakry- lowe, polietylenowe, polichlorek winylu, po¬ lioctan winylu oraz ich kopolimery i inne.Jako srodki zapobiegajace krystalizacji nadaja sie: parafina, parafina chlorowana, oleje para¬ finowe, woski, alkohole wysokoczasteczkowe, ftalan dwubutylu, ftalan dwuoktylu, fosforan trójkrezylu i inne.Ilosci uzytych zywic syntetycznych oraz ilosci substancji zapobiegaja|cy|c|h krysltalizacji mu¬ sza byc tak dobrane, aby skladniki owadobój¬ cze rozpuszczaly sie w nich calkowicie i aby one nie wykrystalizowaly sie nawet po uply¬ wie wielu tygodni. Stan fizyczny tych roztwo¬ rów jest ciekly, pólciekly o konsystencji mazis¬ tej az do twardej masy o temperaturze topnie¬ nia 60°C.Sposób przygotowania emulsyjnego srodka owadobójczego podaja nastepujace przyklady, nieograniczajace przedmiotu wynalazku.Przyklad 1. Faze olejowa przygotowuje sie przez stopienie nastepujacych produktów: DDT — 15 czesci wagowych ftalan dwubutylu — 15 „ „ zywica ftalowa — 5 „. „ zywica melaminowo-butanolowa - 20 „ cykloheksanem — 6 „ „ Faze olejowa ciekla dodaje sie powoli, przy uiruchamic|ny(ni slzybkoiobTioitowym mieszadle do fazy wodnej, skladajacej sie z 5 czesci emul¬ gatora niejonowego i 34 czesci wody.Przyklad 2. Faze olejowa o temperaturze tcipinie-nia 35—40°C, przygotowuje sie przez sto¬ pienie nastepujacych skladników: DDT — 12,5 czesci wagowych Lindan — 2,5 „ „ Ftalan dwubutylu — 15 „ „ Eter cetylowo-metylowy sfzesciometylolomelaminy - 20 Powyzsza faza olejowa latwo emulguje sie po dodaniu emulgatoirów. PLPublished on June 14, 1961. £ liii jk Vof <»irj LIBRARY Urzedi. of the Polish People's Republic of Poland PATENT DESCRIPTION No. 44541 K1..8 k, 1/40 Textile Institute *) Lódz, Poland Manufacturing of an emulsion insecticide for impregnating fabrics The patent lasts from July 29, 1959 The invention concerns a method of producing an emulsion insecticide Water emulsions of solutions of insecticides (DDT, Lindan, Dieldrin, etc.) in organic solvents have hitherto been used to impart insecticidal properties to textiles. These emulsions show little affinity for fibers, and the deposition of insecticides on the fibers is superficial, as a result of which, under the influence of physical and mechanical factors, they are removed from the fabric, which with time loses its insecticidal properties. Polish patent No. 38486 describes a method of increasing the affinity of insecticides for fibers through the use of cationic amine resins, which also increase durability- *) ¦ The owner of the patent stated that the inventor was Mieczyslaw Orzel, MA. the number of these funds. On the other hand, the patent no. 38487 concerns the modification of the existing formulas of non-repellent aipreture by including insecticides into the composition of the finishing compounds in order to give the fabric a permanent insecticidal properties. hitherto used emulsion insecticides, and above all, do not prevent the formation of tarnish on the fabric and do not eliminate volatile organic solvents. These two drawbacks limit the use of cheap and available insecticides in the textile industry. Particular studies have shown that the cause of tarnish on the fabric is strongly expressed in the crystallization properties of the insecticides, and therefore, when volatile solvents are evaporated from the fabric, they crystallize. they appear in the form of crystals, causing a different reflection of light from their surface, which is optically expressed in the erdization of the white coating * ¦ * & <% - '? •. and, the statement relates to a process for the preparation of an emulsifying insecticide in which the insecticidal components are dissolved in resin or other products that prevent them from crystallizing, while the agent does not show a white bloom on impregnated fabrics. ; It has been found that the crystallization of insecticides on the fabric and the use of volatile solvents for the preparation of emulsions of insecticides can be avoided by dissolving insecticides rather than in volatile solvents in synthetic resins and preventing their crystallization. Suitable synthetic resins for this purpose are water-insoluble condensation products of glycol or glycerol with phthalic anhydride (acide resins), modified with drying oils or unmodified, etherified and esterified condensation products of melamine or urea. with formaldehyde and their derivatives with triethanolamine, polyacrylic resins, polyethylene resins, polyvinyl chloride, polyvinyl acetate and their copolymers and others. As agents preventing crystallization, paraffin, chlorinated paraffin, paraffin oils, waxes, High molecular weight alcohols, dibutyl phthalate, dioctyl phthalate, tricresyl phosphate and others. The amount of synthetic resins used and the amounts of substances to prevent crystallization must be selected so that the insecticidal components are completely soluble in them and that they do not even after many weeks had passed. The physical state of these solutions is liquid, semi-liquid with a greasy consistency until a hard mass with a melting point of 60 ° C. The following examples give the preparation of the emulsion insecticide, not limiting the subject matter of the invention. Example 1. The oil phase is prepared by melting of the following products: DDT - 15 parts by weight of dibutyl phthalate - 15 "" phthalate resin - 5 ". "Melamine-butanol resin - 20" cyclohexane - 6 "" The liquid oily phase is added slowly, while agitating (rather than using a quick-and-thioite agitator, to the water phase, consisting of 5 parts non-ionic emulsifier and 34 parts water. oil with a temperature of 35-40 ° C, is prepared by melting the following ingredients: DDT - 12.5 parts by weight Lindane - 2.5 "Dibutyl phthalate - 15" Cetyl methyl ether of semi-methylol melamine - 20 The above phase oil easily emulsifies after adding emulsifiers PL

Claims

Claims 1. A method of producing an emulsion insecticide for impregnating fabrics to impart insecticidal properties to fabrics, example 3. An oily phase is prepared by melting the following ingredients: DDT —10 parts by weight Dieldrin - 4 "" and paraffin - 5 "" I dibutyl phthalate-15 "stearic acid ester of modified methylamlamine-15". An emulsion is prepared from the above oil phase, which after homogenization in a colloid mill is stable for many months. The concentrated emulsions of insecticides obtained in this way, containing 10-20% of active ingredients, exhibit good stability for many months and are able to be diluted with water to any concentration. It mixes well with resin apertures such as polyvinyl chloride, polyvinyl acetate and their copolymers, as well as with water-repellent thermo-reactive resins. Diluted insecticidal emulsions are used for antimoth impregnation of woolen and half-padded products, as well as for insecticidal finishing of cotton fabrics and fabrics made of synthetic fibers, according to the methods known and used hitherto. After the fabrics are saturated and dried, a colorless, transparent, thin resin film is formed on the fibers, firmly bonded to the fiber. The insecticide component is evenly dispersed in this block, which gives the fabric a permanent anti-mimol and insecticidal properties, alternating that the oil phase obtained by melting insecticides in an amount of 10% -40% by weight with synthetic resins with the addition of anti-crystallization compounds, these are emulsified in water, the emulsifying process being carried out in the presence of known emulsifiers and protective colloids.

2. The method according to claim The method of claim 1, characterized in that hydrocarbons, such as paraffin, paraffin oil, chlorinated paraffin, in an amount of 5-20% by weight of the total weight of the constituents constituting the oleaginous phase are used as substances preventing the crystallization of insecticides.

3. The method according to p. A method according to claim 1, characterized in that waxes and high-molecular alcohols in an amount of 5-20% by weight of the total weight of the components constituting the oil phase are used as the substances preventing the crystallization of insecticides.

4. The method according to p. A method as claimed in claim 1, characterized in that esters, such as dibutyl phthalate, dioctyl phthalate, tricresyl phosphate, are screened as substances preventing the crystallization of insecticides in an amount of 10-40% by weight of the total weight of the alveolar components.

5. The method according to p. A method according to claim 1, characterized in that the synthetic resins used are water-insoluble condensation products of glycol or glycerol with phthalic anhydride and their derivatives modified with drying oils, in an amount of 5-20% by weight of the total weight of the components forming the oil phase. .

6. Manage according to history. A method according to claim 1, characterized in that the water-insoluble etherified or esterified condensation products of melamine and urea with formaldehyde and further derivatives thereof with triethanolamine are shuffled as synthetic resins, in an amount of 10-40% by weight of the total weight of the constituents forming oil phase.

7. The method according to p. The method of claim 1, characterized in that thermoplastic polymers, such as polyacrylic, polyvinyl chloride, polyvinyl acetate and their copolymers, in the amount of 5-20% by weight of the total weight of the components forming the oil phase, are used as synthetic resins.

8. The method according to p. A method according to claim 1, characterized in that, in addition to known emulsifiers, etherified or esterified with higher alcohols, amides or fatty acids, condensation products of melamine with formaldehyde and products of further reaction with ethanolamines, in an amount of 20 to 20%, are used as the emulsifying agent. 80% by weight of the total weight of the components forming the oil phase. Textile Institute PL