PL98539B1 - METHOD OF MAKING A MIXTURE FROM THERMOPLASTIC RUBBERS, ESPECIALLY FOR HEELS - Google Patents

METHOD OF MAKING A MIXTURE FROM THERMOPLASTIC RUBBERS, ESPECIALLY FOR HEELS Download PDF

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Publication number
PL98539B1
PL98539B1 PL17077474A PL17077474A PL98539B1 PL 98539 B1 PL98539 B1 PL 98539B1 PL 17077474 A PL17077474 A PL 17077474A PL 17077474 A PL17077474 A PL 17077474A PL 98539 B1 PL98539 B1 PL 98539B1
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PL
Poland
Prior art keywords
mixture
styrene
polystyrene
butadiene
weight
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Application number
PL17077474A
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Polish (pl)
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Priority to PL17077474A priority Critical patent/PL98539B1/en
Publication of PL98539B1 publication Critical patent/PL98539B1/en

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Description

Przedmiotem wynalazku jest sposób wytwarza¬ nia mieszanki z kauczuków termoplastycznych, zwlaszcza na wierzchniki obcasów.Znany dotychczas sposób wytwarzania mieszan¬ ki z kauczuków termoplastycznych polega na tym, ze polimer podstawowy — blokowy kopolimer bu¬ tadienowo-styrenowy modyfikuje sie polistyrenem w postaci granulatu oraz dodaje srodki pomocni¬ cze takie jak: stabilizatory i napelniacze. W celu równomiernego rozprowadzenia granulatu polisty¬ renowego w polimerze podstawowym stosuje sie polistyren o wysokim wskazniku plyniecia, w gra¬ nicach 8—10 G/10 minut, który posiada obnizone wskazniki wytrzymalosciowe. Czas homogenizacji mieszanki przekracza w dotychczasowej technologii 8 minut.Znany jest równiez z patentu RFN nr 1293 651 sposób wytwarzania mieszanki z kauczuków termo¬ plastycznych, w którym stosuje sie polistyren o wysokim ciezarze czasteczkowym do modyfikacji kauczuku butadienowo-styrenowego. Sposób ten do¬ tyczy jednak mieszanek zawierajacych napelniacze i oleje modyfikujace, przetwarzanych zwlaszcza technika konfekcjonowania i przeznaczonych na inne elementy obuwia niz wierzchniki obcasów.Sposób wytwarzania mieszanki z kauczuków ter¬ moplastycznych, zwlaszcza na wierzchniki obcasów, wedlug wynalazku polega na tym, ze polimer pod¬ stawowy, którym jest blokowy kopolimer butadie¬ nu i styrenu z dodatkiem stabilizatora, modyfiku- je sie polistyrenem o niskim wskazniku plyniecia, przy czym dodaje sie polistyren w postaci perel¬ kowej oraz 2—10 czesci wagowych kauczuku bu¬ tadienowo-styrenowego polimeryzacji emulsyjnej o zawartosci 23,5+ 1,5 styrenu zwiazanego na 100 czesci wagowych kopolimeru blokowego butadieno¬ wo-styrenowego. Skladniki mieszanki homogenizuje sie w czasie 4—6 minut, przy temperaturze 120— —150°C. Nastepnie mieszanke plytuje sie znanym sposobem na ogrzanej walcarce, a po wykalandro- waniu na tasme poddaje sie granulowaniu.Mieszanka wedlug wynalazku charakteryzuje sie wysoka odpornoscia na scieranie i niska sklon¬ noscia do deformacji.Wynalazek przedstawiony jest w przykladzie wy¬ konania.Sklad mieszanki.Kauczuk termoplastyczny Cariflex TR 1102—100 czesci wagowych Polistyren SO perelkowy o wskazniku plyniecia 2,6 G/10 minut — 105 czesci wagowych Kauczuk butadienowo-styrenowy Ker 1500 — 5 czesci wagowych Stabilizator AR — 2 czesci wagowe Skladniki mieszanki miesza sie w szybkoobroto¬ wym mieszalniku zamknietym w czasie 4 minut, przy temperaturze okolo 130°C. Nastepnie mieszan¬ ke wyrzuca sie z mieszalnika i plytuje na walcar¬ ce ogrzanej do temperatury 90°C. Po wykalandro- waniu na tasme o grubosci 3 mm mieszanke pod- 98 53998 539 daje sie granulowaniu. Granulat moze byc nastep¬ nie formowany metoda wtrysku.Wlasciwosci mieszanki.Twardosc —92°ShA Scieralnosc wedlug Schoppera — 0,1 cm3 Wytrzymalosc na rozciaganie — 120 kG/cm2 Wydluzenie wzgledne — 250% PLThe subject of the invention is a method of producing a mixture of thermoplastic rubbers, especially for heel tops. The so far known method of producing a mixture of thermoplastic rubbers consists in modifying the base polymer - butadiene-styrene block copolymer with polystyrene in the form of granules and adding auxiliary agents such as: stabilizers and fillers. In order to evenly distribute the polystyrene granules in the base polymer, polystyrene with a high flow index, in the range of 8-10 g / 10 minutes, is used, which has a reduced strength index. The time of homogenization of the mixture exceeds 8 minutes in the previous technology. The German patent No. 1293 651 also describes a method of producing a mixture of thermoplastic rubbers, which uses polystyrene with a high molecular weight for the modification of styrene-butadiene rubber. However, this process applies to mixtures containing fillers and modifying oils, processed, in particular, by the packaging technique and intended for other elements of footwear than heel tops. The method of producing a mixture from thermoplastic rubbers, especially for heel tops, according to the invention consists in the fact that the polymer under The articular, which is a block copolymer of butadiene and styrene with the addition of a stabilizer, is modified with polystyrene with a low flow index, with the addition of polystyrene in the form of pearl and 2-10 parts by weight of butadiene-styrene rubber of emulsion polymerization. with a content of 23.5 + 1.5 bound styrene per 100 parts by weight of styrene-butadiene block copolymer. The components of the mixture are homogenized for 4-6 minutes at a temperature of 120-150 ° C. The mixture is then floated in a known manner on a heated rolling mill, and after belt calibrating, it is granulated. The mixture according to the invention is characterized by high abrasion resistance and low tendency to deformation. The invention is shown in the example of the execution. Composition of the mixture. Thermoplastic rubber Cariflex TR 1102 - 100 parts by weight SO bead polystyrene with a flow index 2.6 G / 10 minutes - 105 parts by weight Styrene butadiene rubber Ker 1500 - 5 parts by weight Stabilizer AR - 2 parts by weight The components of the mixture are mixed at high speed the mixer closed for 4 minutes at a temperature of about 130 ° C. The mixture is then discarded from the mixer and floated on a roller heated to 90 ° C. After calibrating into a 3 mm thick tape, the mixture is granulated. The granulate can then be molded by injection. Properties of the mixture. Hardness —92 ° ShA Schopper Abrasion - 0.1 cm3 Tensile Strength - 120 kg / cm2 Relative Elongation - 250% PL

Claims (1)

1. Zastrzezenie patentowe Sposób wytwarzania mieszanki z kauczuków ter¬ moplastycznych, zwlaszcza na wierzchniki obcasów, 10 na bazie polimeru podstawowego, którym jest blo¬ kowy kopolimer -butadienu i styrenu z dodatkiem stabilizatora, modyfikowany polistyrenem o niskim wskazniku plyniecia, znamienny tym, ze dodaje sie polistyren w postaci perelkowej oraz 2—10 czesci wagowych kauczuku butadienowo-styrenowego po¬ limeryzacji emulsyjnej o zawartosci 23,5+ 1,5 styre¬ nu zwiazanego na 100 czesci wagowych kopolime¬ ru blokowego butadieniu i styrenu, przy czym sklad¬ niki mieszanki homogenizuje sie w czasie 4—6 minut przy temperaturze 120—150°C. Bltk 1163/78 r. 90 egz. A4 Cena 45 zl PL1. Patent claim A method of producing a mixture of thermoplastic rubbers, especially for heel tops, based on a basic polymer, which is a block copolymer of butadiene and styrene with the addition of a stabilizer, modified with polystyrene with a low flow index, characterized by polystyrene in the form of bead polystyrene and 2-10 parts by weight of styrene-butadiene rubber in emulsion polymerization with a content of 23.5 + 1.5 bound styrene per 100 parts by weight of butadiene block copolymer and styrene, the mixture components being homogenization is carried out for 4-6 minutes at 120-150 ° C. Bltk 1163/78 r. 90 copies A4 Price PLN 45 PL
PL17077474A 1974-05-02 1974-05-02 METHOD OF MAKING A MIXTURE FROM THERMOPLASTIC RUBBERS, ESPECIALLY FOR HEELS PL98539B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17077474A PL98539B1 (en) 1974-05-02 1974-05-02 METHOD OF MAKING A MIXTURE FROM THERMOPLASTIC RUBBERS, ESPECIALLY FOR HEELS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL17077474A PL98539B1 (en) 1974-05-02 1974-05-02 METHOD OF MAKING A MIXTURE FROM THERMOPLASTIC RUBBERS, ESPECIALLY FOR HEELS

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PL98539B1 true PL98539B1 (en) 1978-05-31

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