ITMC20090180A1 - SOLE FOR FOOTWEAR IN POLYURETHANE - Google Patents

SOLE FOR FOOTWEAR IN POLYURETHANE Download PDF

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Publication number
ITMC20090180A1
ITMC20090180A1 IT000180A ITMC20090180A ITMC20090180A1 IT MC20090180 A1 ITMC20090180 A1 IT MC20090180A1 IT 000180 A IT000180 A IT 000180A IT MC20090180 A ITMC20090180 A IT MC20090180A IT MC20090180 A1 ITMC20090180 A1 IT MC20090180A1
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IT
Italy
Prior art keywords
polyol
isocyanate
sole according
sole
polyester
Prior art date
Application number
IT000180A
Other languages
Italian (it)
Inventor
Mauro Biagioli
Original Assignee
Sialp S P A
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 Sialp S P A filed Critical Sialp S P A
Priority to IT000180A priority Critical patent/ITMC20090180A1/en
Publication of ITMC20090180A1 publication Critical patent/ITMC20090180A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
    • C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0033—Foam properties having integral skins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2410/00—Soles

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

DESCRIZIONE DESCRIPTION

“SUOLA PER CALZATURA IN POLIURETANO”. “POLYURETHANE SOLE FOR FOOTWEAR”.

La presente domanda di brevetto per invenzione industriale ha per oggetto una suola per calzatura in poliuretano. The present patent application for industrial invention relates to a polyurethane shoe sole.

Nel settore della calzatura si è diffusa la produzione di suole ottenute per stampaggio di un materiale plastico espanso, quale il poliuretano (PU), proprio per la facilità di stampaggio e distribuzione nello stampo di tale materiale e per le sue caratteristiche di durata nel tempo. In the footwear sector, the production of soles obtained by molding an expanded plastic material, such as polyurethane (PU), has spread, precisely because of the ease of molding and distribution in the mold of this material and for its characteristics of duration over time.

Tuttavia le suole in poliuretano secondo la tecnica nota generalmente risultano eccessivamente pesanti, dure e rigide rendendo la calzatura poco confortevole. However, the polyurethane soles according to the known art are generally excessively heavy, hard and rigid, making the shoe uncomfortable.

Scopo della presente invenzione è di eliminare gli inconvenienti della tecnica nota, fornendo una suola in poliuretano che sia leggera, morbida, elastica e che abbia un buon grip con il terreno, e nello stesso tempo presenti un'elevata resistenza meccanica prolungata nel tempo. The object of the present invention is to eliminate the drawbacks of the known art, providing a polyurethane sole that is light, soft, elastic and that has a good grip with the ground, and at the same time has a high mechanical resistance over time.

Questo scopo è raggiunto in accordo all’invenzione, con le caratteristiche elencate nell’annessa rivendicazione indipendente 1. This purpose is achieved in accordance with the invention, with the characteristics listed in the attached independent claim 1.

Realizzazioni vantaggiose appaiono dalle rivendicazioni dipendenti. Advantageous embodiments appear from the dependent claims.

La richiedente, dopo diversi studi e prove sperimentali ha messo a punto una formulazione di un poliuretano per la produzione di suole che soddisfa le caratteristiche richieste. The applicant, after various studies and experimental tests, has developed a formulation of a polyurethane for the production of soles which satisfies the required characteristics.

Come è noto, un poliuretano è ottenuto dalla miscela di un poliolo con un isocianato. As is known, a polyurethane is obtained by mixing a polyol with an isocyanate.

Nella specifica formulazione secondo l'invenzione il poliolo è ottenuto da una miscela di poliestere adipato additivato con estensori di catena, catalizzatori ed espandenti. In the specific formulation according to the invention, the polyol is obtained from a mixture of adipate polyester with the addition of chain extenders, catalysts and expanding agents.

In particolare viene utilizzato un poliestere adipatao con peso molecolare compreso tra 2000 - 3000. Come catalizzatori sono utilizzati il DABCO EG, la cui formula chimica è C6H12N2e il silicone DC-193. Come espandente viene utilizzata l'acqua. In particular, an adipatao polyester with a molecular weight between 2000 - 3000 is used. DABCO EG, whose chemical formula is C6H12N2 and silicone DC-193 are used as catalysts. Water is used as an expanding agent.

Nella tabella 1 viene riportata la formulazione del poliolo espressa in percentuale. Table 1 shows the formulation of the polyol expressed as a percentage.

COMPONENTE PARTI COMPONENT PARTS

Poliestere adipato peso molecolare 2000 - 3000 91,65 Glicol (monoetil glicol) (estensore di catena) 6,62 (+1) Catalizzatore dabco EG 1,22 Silicone DC 193 0,10 Acqua (espandente) 0,41 (+0,05) Tabella 1 Adipate polyester molecular weight 2000 - 3000 91.65 Glycol (monoethyl glycol) (chain extender) 6.62 (+1) Dabco catalyst EG 1.22 Silicone DC 193 0.10 Water (expanding agent) 0.41 (+0, 05) Table 1

Il poliolo viene fatto reagire con un polimero isocianato a base di Metil Difenil Metan di Isocianato (M.D.I.) e un poliestere dello stesso tipo utilizzato nel poliolo. The polyol is reacted with an isocyanate polymer based on methyl diphenyl methane isocyanate (M.D.I.) and a polyester of the same type used in the polyol.

Nella tabella 2 viene riportata la formulazione dell'isocianato espressa in percentuale. Table 2 shows the formulation of the isocyanate expressed as a percentage.

Tabella 2 Table 2

Con una % di isocianato libero (NCO) = 20 3 Il rapporto di miscelazione tra i due componenti (Poliolo ed Isocianato) può variare rispettivamente tra 100/70 e 100/84 in base alle caratteristiche richieste. With a% of free isocyanate (NCO) = 20 3 The mixing ratio between the two components (Polyol and Isocyanate) can vary respectively between 100/70 and 100/84 according to the required characteristics.

Vale a dire si ha un rapporto di lavoro: That is to say you have an employment relationship:

POLIOLO 100 POLYOL 100

= =

ISOCIANATO 77( ±7 ) ISOCYANATE 77 (± 7)

Con una densità di espansione libera = 240 10 (gr/litri) Con la formulazione summenzionata si ottengono le seguenti proprietà elencate nelle tabelle 3 e 4 sottostanti. With a free expansion density = 240 10 (gr / liters) With the above-mentioned formulation the following properties are obtained, listed in Tables 3 and 4 below.

PROPRIETÀ FISICO MECCANICHE PHYSICAL MECHANICAL PROPERTIES

Lacerazione (DIN 53507) > 10 Kg/cm Lacerazione (ASRM D T.B.) > 25 Kg/cm Resistenza all'abrasione (DIN 53561) ≤ 250 mm<3>Resistenza alle flessioni ripetute (DIN 53543) 0 % 100.000 flessioni a temperatura di 20°C Tearing (DIN 53507)> 10 Kg / cm Tearing (ASRM D T.B.)> 25 Kg / cm Resistance to abrasion (DIN 53561) ≤ 250 mm <3> Resistance to repeated flexing (DIN 53543) 0% 100,000 flexing at a temperature of 20 ° C

Resistenza alle flessioni ripetute (ISO 6907) 0 % 50.000 flessioni a temperatura di - 15°C Resistance to repeated flexing (ISO 6907) 0% 50,000 flexing at a temperature of - 15 ° C

Tabella 3 Table 3

RESISTENZA DOPO IDROLISI ISO 2440 RESISTANCE AFTER HYDROLYSIS ISO 2440

(20h a 85°C con 100% umidità relativa) Allungamento (DIN 53504) > 500 % Trazione (DIN 53504) > 100 Kg/cm<2>Lacerazione (DIN 53507) > 10 Kg/cm Resistenza alle flessioni ripetute (DIN 53543) 0 % 100.000 flessioni a temperatura di 20°C (20h at 85 ° C with 100% relative humidity) Elongation (DIN 53504)> 500% Tensile (DIN 53504)> 100 Kg / cm <2> Tearing (DIN 53507)> 10 Kg / cm Resistance to repeated bending (DIN 53543 ) 0% 100,000 flexes at a temperature of 20 ° C

Lacerazione (DIN 53507) > 10 Kg/cm Resistenza all'abrasione (DIN 53561) ≤ 250 mm<3>Tabella 4 Tear (DIN 53507)> 10 Kg / cm Abrasion resistance (DIN 53561) ≤ 250 mm <3> Table 4

Alla presente forma di realizzazione dell’invenzione possono essere apportate numerose variazioni e modifiche di dettaglio, alla portata di un tecnico del ramo, rientranti comunque entro l’ambito dell’invenzione espresso dalle rivendicazioni annesse. Numerous variations and modifications of detail can be made to the present embodiment of the invention, within the reach of a person skilled in the art, however falling within the scope of the invention expressed by the attached claims.

Claims (3)

RIVENDICAZIONI 1) Suola per calzatura in poliuretano ottenuto facendo reagire un poliolo con un isocianato, caratterizzata dal fatto che detto poliolo è ottenuto da una miscela di poliestere adipato additivato con estensori di catena, catalizzatori ed espandenti e detto isocianato è ottenuto da una miscela di Metil Difenil Metan di Isocianato (M.D.I.) e poliestere adipato. CLAIMS 1) Polyurethane shoe sole obtained by reacting a polyol with an isocyanate, characterized in that said polyol is obtained from a mixture of adipate polyester with chain extenders, catalysts and expanding agents and said isocyanate is obtained from a mixture of Methyl Diphenyl Isocyanate methane (M.D.I.) and polyester adipate. 2) Suola secondo la rivendicazione 1, caratterizzata dal fatto che detto poliestere adipato utilizzato nel poliolo e nell'isocianato è un poliestere adipato con peso molecolare compreso tra 2000 e 3000. 2) Sole according to claim 1, characterized in that said polyester adipate used in the polyol and in the isocyanate is an adipate polyester with a molecular weight between 2000 and 3000. 3) Suola secondo la rivendicazione 1 o 2, caratterizzata dal fatto che il rapporto di lavoro tra poliolo ed isocianato per la preparazione del poliuretano è pari a POLIOLO 100 = ISOCIANATO 77( ±7 ) 4) Suola secondo una qualsiasi delle rivendicazioni precedenti, caratterizzata dal fatto che la quantità in percentuale di poliestere adipato utilizzata per la preparazione della miscela del poliolo è pari a circa il 91,65 %. 5) Suola secondo una qualsiasi delle rivendicazioni precedenti, caratterizzata dal fatto che la quantità in percentuale di Metil Difenil Metan di Isocianato (M.D.I.) utilizzata per la preparazione dell'isocianato vaia nel range da 60 a 70%. 6) Suola secondo una qualsiasi delle rivendicazioni precedenti, caratterizzata dal fatto che detto estensore di catena utilizzato nel poliolo è il monoetil glicol. 7) Suola secondo la rivendicazione 6, caratterizzata dal fatto che detto monoetil glicol utilizzato nel poliolo varia nel range da 5,62 a 7,62%. 8) Suola secondo una qualsiasi delle rivendicazioni precedenti, caratterizzata dal fatto che detti catalizzatori utilizzati nel poliolo comprendono DABACO EG e/o SILICONE DC-193. 9) Suola secondo la rivendicazione 8, caratterizzata dal fatto che detto DABACO EG è utilizzato nel poliolo in percentuale 1,22% e detto SILICONE DC-193 è utilizzato nel poliolo in percentuale 0,10%. 10) Suola secondo una qualsiasi delle rivendicazioni precedenti, caratterizzata dal fatto che detto espandente utilizzato nel poliolo è acqua. 11) Suola secondo la rivendicazione 10, caratterizzata dal fatto che detta acqua utilizzata nel poliolo varia nel range da 0,39 a 0,46%.3) Sole according to claim 1 or 2, characterized in that the working ratio between polyol and isocyanate for the preparation of the polyurethane is equal to POLYOL 100 = ISOCYANATE 77 (± 7) 4) Sole according to any one of the preceding claims, characterized in that the percentage amount of polyester adipate used for the preparation of the polyol mixture is equal to about 91.65%. 5) Sole according to any one of the preceding claims, characterized in that the percentage quantity of Methyl Diphenyl Methane of Isocyanate (M.D.I.) used for the preparation of the isocyanate varies in the range from 60 to 70%. 6) Sole according to any one of the preceding claims, characterized in that said chain extender used in the polyol is monoethyl glycol. 7) Sole according to claim 6, characterized in that said monoethyl glycol used in the polyol varies in the range from 5.62 to 7.62%. 8) Sole according to any one of the preceding claims, characterized in that said catalysts used in the polyol include DABACO EG and / or SILICONE DC-193. 9) Sole according to claim 8, characterized in that said DABACO EG is used in the polyol in a percentage of 1.22% and said SILICONE DC-193 is used in the polyol in a percentage of 0.10%. 10) Sole according to any one of the preceding claims, characterized in that said expanding agent used in the polyol is water. 11) Sole according to claim 10, characterized in that said water used in the polyol varies in the range from 0.39 to 0.46%.
IT000180A 2009-08-03 2009-08-03 SOLE FOR FOOTWEAR IN POLYURETHANE ITMC20090180A1 (en)

Priority Applications (1)

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IT000180A ITMC20090180A1 (en) 2009-08-03 2009-08-03 SOLE FOR FOOTWEAR IN POLYURETHANE

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4857561A (en) * 1988-08-30 1989-08-15 Mobay Corporation Novel neopentyladipate based prepolymers and reaction injection molded products made therefrom
WO2006097507A1 (en) * 2005-03-17 2006-09-21 Basf Aktiengesellschaft Polyurethane shoe soles
US20070179208A1 (en) * 2004-05-31 2007-08-02 Basf Aktiengesellschaft Low-density polyurethane foam materials and their use in shoe soles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4857561A (en) * 1988-08-30 1989-08-15 Mobay Corporation Novel neopentyladipate based prepolymers and reaction injection molded products made therefrom
US20070179208A1 (en) * 2004-05-31 2007-08-02 Basf Aktiengesellschaft Low-density polyurethane foam materials and their use in shoe soles
WO2006097507A1 (en) * 2005-03-17 2006-09-21 Basf Aktiengesellschaft Polyurethane shoe soles

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