• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A novel elastic polyurethane having outstanding properties for use in making mono- and multi-layer food casings, more especially sausage casings, by extrusion. Stretching, especially biaxial stretching, gives further improvement. The casings can be boiled and scalded without folding or wrinkling when cooled. The polyurethane comprises a particular combination of components which imparts the desired properties.
    公开号:SU1034597A3
    申请号:SU762431534
    申请日:1976-12-17
    公开日:1983-08-07
    发明作者:Корлатцки Руди；Шумахер Гюнтер
    申请人:Натурин-Верк Бекер Унд Ко (Фирма)；
    IPC主号:
    专利说明:

    00 SP
    SO m
    The invention relates to a polyurethane composition which can be used to make sausage casings prepared from raw minced meat, followed by roasting and boiling or roasting, boiling and smoking.
    A polyurethane composition is known that includes a polycaprolactone with a molecular weight of 2000, diisocyanate and 1,4-butanediol. Of. of this composition, a shell is obtained, the tensile strength of which is 5 N / mm2 1.
    When cooking sausages cooked in a casing of a known composition, or in the case of processing them with Steam followed by cooling, the density of the casing adjacent to the sausage meat is broken, the surface of the sausages becomes uneven. In addition, the shell made from this composition is glued together, which makes it difficult to work with it. Thus, the known composition does not make it possible to form a durable and at the same time elastic material that is glued together upon receipt of seamless sleeves. :
    Obtained from the composition of the shell must be resistant to hydrolysis, solvent, fat, give very small amounts of harmless substances into the environment (and into the product) and have a wide range of melting points.
    The purpose of the invention is the possibility of obtaining a smooth and non-adhesive casing on the basis of the mixture and an improvement in the strength characteristics of the composition. The goal is achieved by the fact that in the composition to obtain a sausage casing including polycaprolactone, diisocyanate and 1.4butanediol, 1,6-hexamethylene diisocyanate is used as a diisocyanate in the following ratio of components;
    Polycaprolactone with a molecular weight of 10004000 24-30
    1, b-Hexamethylenediisocyanate50, 40
    1,4-Vutanediol. 24.84-27.00 In this case, the ratio is equivalent. isocyanate groups and the total amount of hydroxyl groups in the starting components is. 0.95-1.0. Thus, in the proposed composition (polyurethane elastomer), a polyester diol constructed from polycaprolactone, -1,6 hexamethylene diisocyanate is used as a high-molecular diol, and - 1,4butanediol.
    Sausage casing, made from the proposed composition, can be further improved. To do this, it should be stretched in two mutually perpendicular directions. The skins have lower permeability for oxygen and water vapor, as well as higher strength.
    Examples of compositions for producing sausage casings are given in the table, while polycaprolactone in compositions 1 and 2 has a molecular weight of 2000, a composition of 3-4,000, a composition of 4-1000, the moisture content of caprolactone in all compositions is 0.03
    Equivalent high molecular weight polyol to diisocyanate ratio 1:25. ,
    The equivalent ratio of chain extension to high molecular weight polyol is 24.5: 1.
    Of these compositions, shells are prepared, preferably by a single charge method. To this end, the constituent elements — polycaprolactone, 1.6 hexamethylene diisocyanate and. 1,4-butanediol in the indicated amounts are placed in a reactor and heated to with stirring. As a result of the exothermic reaction, the temperature of the mixture rises to 240 ° C. At this temperature, the product is poured onto a polytetrafluoroethylene film. After 5 hours, the resulting cast plate can be pelletized.
    To obtain sausage casings, the mixture is heated and extruded.
    The resulting composition provides a film that is relatively cheap, easy to manufacture, and meets the requirements of food contact materials, i.e. harmless.
    It is possible to form a seamless sleeve from this composition, and a few seconds after leaving the nozzle, the film can be wound (no pasting takes place). Films can be used as a casing for sausages to be cooked and steamed, followed by cooling. In this case, the shell, due to the elasticity, decreases in volume along with the sausage stuffing without wrinkling on the surface and fits snugly to the stuffing. The films are not only elastic, but also high-strength (on the order of 25-80 N / mm), t, e. they combine the properties of elastomer and thermoplastics. Shells are highly resistant to hydrolysis against other solvents, fats.
    Of the compositions, it is possible to extrude not only single-layer, but also multilayer films together with other
    31034597
    thermoplastics without the use of vanilla agents in a known manner. At the same time, the stalk is to ensure adherence. produce the wood
    The properties of the extruded sausage are in the range of 1 / 1-1 / 4, and the foamed casing can improve the auxiliary stretching with stretching significantly by biaxial stretching from the same range.
    stretching with stretch ratio
    Polycaprolactone 2427 1, b-Hexamethylene diisocyanate 50.4. 1,4-butanediol. 2b, 4b26.32 2430 50.450.4 2724.84
    权利要求:
    Claims (1)
    [1]
    POLYURETHANE COMPOSITION FOR PREPARATION OF A SAUSAGE SHELL, Including Polycaprolactone,. diisocyanate and 1,4-butanediol, with the exception of the fact that, in order to obtain a smooth and non-sticky shell on its basis and to improve the strength characteristics of the latter, 1,6-hexamethylene di-diocyanate is used as a diisocyanate in the following ratio of components, Polycaprolactone with a molecular weight of 1000-4000
    1, b-Hyoxamethylene diisocyanate
    1,4-Butanediol parts by weight:
    24-30
    50.40
    24.84-27.00 §
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    PL114934B1|1981-03-31|
    JPS5283973A|1977-07-13|
    AT357012B|1980-06-10|
    IE45182B1|1982-07-14|
    GB1576420A|1980-10-08|
    DE2559318B2|1979-04-05|
    NO764382L|1977-07-01|
    ES454702A1|1978-10-16|
    BE850017A|1977-06-30|
    FR2336883B1|1980-03-14|
    DK589376A|1977-07-01|
    NO145920B|1982-03-15|
    IE45182L|1977-06-30|
    DE2559318A1|1977-07-14|
    NO145920C|1982-06-23|
    FR2336883A1|1977-07-29|
    IT1067005B|1985-03-12|
    DE2559318C3|1979-11-29|
    CA1103393A|1981-06-16|
    GB1576419A|1980-10-08|
    AU2100376A|1978-07-06|
    LU76482A1|1977-07-05|
    NL7614585A|1977-07-04|
    ZA767712B|1977-11-30|
    DD128098A5|1977-11-02|
    SE7614697L|1977-07-02|
    US4123589A|1978-10-31|
    AU510110B2|1980-06-05|
    CH626232A5|1981-11-13|
    FI763711A|1977-07-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2914556A|1956-04-13|1959-11-24|Union Carbide Corp|Preparation of lactone adducts|
    GB1131885A|1966-08-29|1968-10-30|Takeda Chemical Industries Ltd|A process for the production of polyurethane elastomer|
    CH477274A|1968-08-08|1969-08-31|Barmag Barmer Maschf|Device for the production of multilayer blown films or tubes|
    US3926706A|1969-10-31|1975-12-16|Reifenhaeuser Kg|Film blowing method|
    US3752694A|1970-03-02|1973-08-14|Upjohn Co|Process for bonding polyurethane to substrate|
    US3763079A|1971-06-01|1973-10-02|Du Pont|Polyurethanes based on mixed aromatic aliphatic polyesters|
    US3746665A|1971-08-02|1973-07-17|Union Carbide Corp|Polyurethane based on blends of poly diols and poly diols|US4576156A|1978-04-17|1986-03-18|Ortho Pharmaceutical Corporation|Prophylactic device and method|
    US4296156A|1979-12-26|1981-10-20|Union Carbide Corporation|Multilayer film including a polyurethane|
    DE3047181A1|1980-12-15|1982-06-16|Hoechst Ag, 6000 Frankfurt|PLASTIC PIPE WITH OXYGEN-COATING|
    US4348437A|1981-06-10|1982-09-07|Union Carbide Corporation|Puncture-resistant heat shrinkable multilayer packaging film|
    US4376834A|1981-10-14|1983-03-15|The Upjohn Company|Polyurethane prepared by reaction of an organic polyisocyanate, a chain extender and an isocyanate-reactive material of m.w. 500-20,000 characterized by the use of only 2-25 percent by weight of the latter material|
    ZA83848B|1982-03-15|1984-08-29|Grace W R & Co|Quenched nylon multilayer casings|
    US5094250A|1987-03-02|1992-03-10|Chartex International Plc|Tubular protective device for protection against transfer of infectious matter during sexual intercourse|
    US4816130A|1987-07-02|1989-03-28|Becton, Dickinson And Company|Blood electrolyte sensors including crosslinked polyetherurethane membranes|
    US5169464A|1988-05-26|1992-12-08|Family Health International|Method of making a condom by blow extrusion|
    DE3908585C2|1989-03-16|1991-02-28|Pi Patente Gmbh|
    US5254354A|1990-12-07|1993-10-19|Landec Corporation|Food package comprised of polymer with thermally responsive permeability|
    US5665822A|1991-10-07|1997-09-09|Landec Corporation|Thermoplastic Elastomers|
    DE4233884A1|1992-02-25|1993-08-26|Wolff Walsrode Ag|HOSE SLEEVE, WITH AN ORGANO CHLORINE-FREE O2AND WATER VAPOR-OPPERABLE LAYER, METHOD FOR THEIR PRODUCTION AND USE|
    DE19504704B4|1995-02-13|2005-09-15|Naturin Gmbh & Co|Edible collagen casing, method of manufacture and use thereof|
    US5807595A|1996-10-31|1998-09-15|Devro-Teepak, Inc.|Sausage product and method for making|
    US5989605A|1996-10-31|1999-11-23|Teepak Investments, Inc.|Sausage product and method for making|
    DE19737113A1|1997-08-27|1999-03-04|Kalle Nalo Gmbh|Method and device for producing a seamless cellulose-based film tube by extrusion|
    DE19832469A1|1998-07-18|2000-01-20|Kautex Textron Gmbh & Co Kg|Method for producing a cover skin for the instrument panel of a motor vehicle|
    US6767598B1|2000-11-28|2004-07-27|Teepak Properties, Llc|Low DP food casing from high solids viscose|
    US8329269B2|2009-04-20|2012-12-11|Dsm Ip Assets B.V.|Tubular film for foodstuff casing and a foodstuff casing produced from the film|
    PL2421378T3|2009-04-20|2013-10-31|Dsm Ip Assets Bv|Tubular film for foodstuff casing and a foodstuff casing produced from the film|
    BR112014021890B1|2012-03-09|2020-12-01|Kraft Foods Group Brands Llc|edible product comprising 1,3-propanediol and method for effecting an improved taste profile of an edible|
    EP3440942A1|2012-03-09|2019-02-13|Kraft Foods Group Brands LLC|Food and beverage products containing 1,3-propanediol and methods of modifying flavor release using 1,3-propanediol|
    CN113195197A|2018-12-21|2021-07-30|宝利诺沃生物材料有限公司|Oriented biodegradable polyurethanes|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2559318A|DE2559318C3|1975-12-31|1975-12-31|Use of an elastic polyurethane for producing an at least one-layer, optionally biaxially stretched sausage casing for cooked and scalded sausages|
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