![]() Method of processing starch compounds
专利摘要:
The invention relates to the process of recycling products based on starch bottles, sheet materials, strips, tubes, rods, etc. The invention allows to standardize the quality of products and reduce the percentage of their waste. This is achieved due to the fact that compositions containing as main components starch and water in an amount of 10-40% by weight of starch - water are heated in a closed volume of a screw device to half a melt and then be molded. At the same time, the temperature of the beginning and end of the molding is established according to the scanning calorimetric diagram - the melt formation is carried out at a temperature corresponding to the end of the endothermic change, located on the diagram before the peak of the endothermic change characteristic of thermo-oxidative destruction of starch. 3 dw., 3 tab. Yo 公开号:SU1743357A3 申请号:SU894613237 申请日:1989-01-18 公开日:1992-06-23 发明作者:Фредерик Томас Степто Роберт;Доблер Бит 申请人:Варнер-Ламберт Компани (Фирма); IPC主号:
专利说明:
The invention relates to a process for processing starch-based compositions in articles, such as bottles, sheets, films, tubes, rods, laminates, pharmaceutical capsules, etc. can be obtained by the proposed method. The aim of the invention is to achieve a standard quality of products and a reduction in the percentage of their marriage. Figure 1 shows a thermoanalytical system; figure 2 - thermal analysis system Perkin-Elmer; on fig.Z - thermogram of the native mixture (curve B) and potato starch (curve A). Example 1. A sample of native potato starch, which contains 17% water, calculated on the total weight, is heated in a closed digester DSC at a rate of 10 ° C / min. The resulting thermogram is shown in FIG. The overconversion (a specific narrow peak occurring immediately before the endothermic change characteristic of the oxidative and thermal destruction of starch) was observed at a nominal temperature of 183 ° C. Two samples of the same material were subjected to separate heating under the specified conditions. The first sample is heated to a nominal temperature of 195 ° C immediately after the conversion process is completed. After cooling and opening the digester DSC, it was determined that the sample had turned into a solidified transparent melt. The second sample is heated under the same conditions to a nominal temperature of only 172 ° C. After cooling and opening of the digester DSC it was established that non-VI was formed. WITH coke VI with transparent material. This indicates the incompleteness of melt formation. Example 2. DSC thermograms are obtained using native starches containing 12. 14, 17, 20, 25, 30, 35 and 42% water (in mass percent of the total mass). The result obtained is shown in Fig. 2. It is quite obvious that overconversion occurs to a water content of approximately 40%. Example 3. Various samples of potato starch are used to make small thin-walled (approximately 0.3 mm thick) pharmaceutical conveyors by injection molding with temperature setting cycles increasing from room temperature to 160 ° C for 3.5 minutes. Such samples were chosen because their range of nominal superconversion temperatures is 14 ° C (183-198 ° C), as measured by DSC analysis at a heating rate of 10 ° C / min. Formed containers inspect. The percentage of defective castings is given in Table 1 in connection with their superconversion temperatures. With an increase in the superconversion temperature of the material, the percentage of defective parts decreases. The true melt temperature during processing is above the set temperature, at the superconversion endotherm, the interval is approximately 20 ° C and the nominal temperature exceeds the true temperature. From the results of Table 1, it is clear that the lower the nominal superconversion temperature of the material, the higher the percentage of its melt, which undergoes endothermic superconversion during processing, and the lower the percentage of defective parts. Example 4. The superconversion temperature can be controlled by the concentration and type of counter-ions in the starch. Tables 2 and 3 list the transformation temperatures for the two starches in the native state and in a state in which the metal cations are removed or replaced by other leaching cations at room temperature, as a result of which no thermal decomposition or decomposition occurs. Sample 9 is native starch, which contains 1 g of free salts for every 5 kg of starch. This starch is washed at room temperature with an excess of demineralized water in order to remove these salts, as it is determined by gravimetric analysis to obtain sample 10, which is characterized by a 12 ° C decrease in superconversion temperatures in comparison with corresponding to the native material of sample 9. Thus, processing the starch of sample 9 at a low temperature is simplified by washing with water. Second native starch (sample 11) 0 washed with an excess of 0.1 M hydrochloric acid at room temperature, and then neutralized with an appropriate amount of 0.1 M base, resulting in cationic starches of samples 12-15, in which the native cations associated with the phosphate groups of starch are replaced cation species as indicated in Table 3 (samples 12 through 15). In this case, the superconversion temperature unexpectedly rises depending on the type of cation. Recycling sample 10 is simplified in comparing with the processing of native material. Processing samples from 12 and 15 turned out to be more difficult than processing native material. Example 5. Native starch (water content - 17%) is mixed with 1% mixture of mono-, di- and triglycerides of fatty acids, 0 which are characterized by the distribution over the chain lengths, and 0.5% of the solid soy lecithin. The amounts of additives are calculated based on only one native starch. Figure 5 shows a thermogram of this native mixture (curve B) and potato starch together with 17% water (curve A). The overconversion enthalpy for curve B is much smaller, As a result, processing is simplified. Additional endotherm at lower temperatures for curve B corresponds to the melting of additives and is too low a temperature to influence 5 on the homogeneity of the melt. Example 6. Starting from a starch composition containing 10% water by weight of the composition, the thermogram obtained in Example 2 was obtained. Upper transition 0 occurs at a nominal temperature of 199 ° C, with the result that the number of defective parts is 6.9%.
权利要求:
Claims (1) [1] Claims The method of processing the compositions of starch5 is small, comprising heating compositions containing as main components starch and water in an amount of 10-40% by weight of starch - water in a closed volume of a screw device to obtain a melt and then molding it into The product, when setting the temperature of the beginning and end of the molding according to the scanning calorimetric diagram, characterized in that, in order to achieve the standard quality of the products and reduce the percentage of their scrap, the melt molding carried out at a temperature corresponding to the end of the endothermic change, located on the diagram in front of the peak of the endothermic change characteristic of thermo-oxidative degradation of starch. Table 1 ten table 2 Table 3 g-yu with t NfjY / y) 7аоит вх z / wj Nrssi rtogotfiidi / J / jk) loshos (l wj night under: l e л
类似技术:
公开号 | 公开日 | 专利标题 SU1743357A3|1992-06-23|Method of processing starch compounds US3516957A|1970-06-23|Thermoplastic polyester composition containing organic ester mold release agent FI87225B|1992-08-31|FOERFARANDE FOER FRAMSTAELLNING AV EN SMAELTA AV DESTRUKTURERAD STAERKELSE OCH MED FOERFARANDET ERHAOLLEN STAERKELSE. US3113674A|1963-12-10|Composition comprising sodium cellulose acetate sulfate and a polymer and unit package preparted therefrom DE1295827B|1969-05-22|Process for the preparation of substantially amorphous, clear polyamides KR920001043B1|1992-02-01|Citric acid esters as blowing agents for working up plastics CH644617A5|1984-08-15|COMPOSITION BASED ON POLYAETHYLENE TEREPHTHALATE -HOMO OR -COPOLYMERISAT. US4368286A|1983-01-11|Thermoplastic polyester resin composition which is quickly crystallizable CA2079955C|1995-01-03|Method for producing formed blanks from thermoplastically workable component mixtures US4417032A|1983-11-22|Quasi-random copolymers from homopolymers NL8302732A|1984-03-01|IMPROVEMENTS IN AND CONCERNING PRESS MATERIALS BASED ON THE POLYESTER. CN105131542B|2018-04-03|A kind of bamboo powder handled through lactide surface grafting and polylactic acid blend composite and preparation method and application Gouissem et al.2014|The evolution of properties of recycled poly | as function of chain extenders, the extrusion cycle and heat treatment EP0527159A1|1993-02-17|Process for producing environment-friendly, biodegradable moulding compounds. US4290935A|1981-09-22|Highly rigid polyamide composition US3817966A|1974-06-18|Nucleation of isotactic polystyrene US2341464A|1944-02-08|Cellulose ester composition US4894452A|1990-01-16|Cyanuric acid production by controlled pyrolysis of biuret PL72919B1|1974-08-30| US2769834A|1956-11-06|Adducts of monoalkenylsuccinates with fumarates US2806011A|1957-09-10|Vinyl chloride polymers plasticized with tetra-alkyl alkenetetra carboxylates US5247002A|1993-09-21|Polyphenylene sulphide composition containing silver nitrate US4368285A|1983-01-11|Fast crystallizing polyethylene terephthalate containing neopentyl dibenzoate US1528291A|1925-03-03|Manufacture of plastic materials or articles having a basis of cellulose acetate US2935415A|1960-05-03|Oxygen-containing thermoplastic compositions
同族专利:
公开号 | 公开日 AU2858989A|1989-07-27| DE68916556T2|1995-02-09| GB2214516B|1992-10-07| DE68916556D1|1994-08-11| AT108189T|1994-07-15| AU618777B2|1992-01-09| EP0326517B1|1994-07-06| JP2606916B2|1997-05-07| GB2214516A|1989-09-06| GB8801562D0|1988-02-24| EP0326517A1|1989-08-02| BR8900211A|1989-09-12| JPH01217002A|1989-08-30| CN1039598A|1990-02-14|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 NL28744C|1928-12-26| GB346224A|1930-06-13|1931-04-09|Ernst Fritz Hoppler|Improved manufacture of starches swelling in cold water| US2417969A|1941-12-15|1947-03-25|Stein Hall & Co Inc|Dissociated starch and method of making the same| GB1110711A|1965-01-04|1968-04-24|Lyons & Co Ltd J|Flour treatment process| NL6707898A|1967-06-07|1968-12-09| IN160476B|1983-02-18|1987-07-11|Warner Lambert Co| BG46154A3|1983-02-18|1989-10-16|Warner Lambert Co|Method for preparing of capsules| GB2205323B|1987-03-09|1991-01-30|Warner Lambert Co|Destructurized starch and process for making same| GB2206888B|1987-07-07|1991-02-06|Warner Lambert Co|A destructurized starch and a process for making same| GB2208651B|1987-08-18|1991-05-08|Warner Lambert Co|Shaped articles made from pre-processed starch| JPH0539777A|1991-05-07|1993-02-19|Nippondenso Co Ltd|Compressor provided with transmission|US5035930A|1988-12-30|1991-07-30|National Starch And Chemical Investment Holding Corporation|Biodegradable shaped products and the method of preparation thereof| WO1990010019A1|1989-02-23|1990-09-07|Ivan Tomka|Process for the production of homogenized crystalline starch| IL93620D0|1989-03-09|1990-12-23|Butterfly Srl|Biodegradable articles based on starch and process for producing them| US5043196A|1989-05-17|1991-08-27|National Starch And Chemical Investment Holding Corporation|Biodegradable shaped products and the method of preparation thereof| IT1233599B|1989-05-30|1992-04-06|Butterfly Srl|POLYMERIC COMPOSITIONS FOR THE PRODUCTION OF BIODEGRADABLE PLASTIC ITEMS AND PROCEDURES FOR THEIR PREPARATION| IT1234783B|1989-05-30|1992-05-27|Butterfly Srl|PROCEDURE FOR THE PRODUCTION OF DESTRUCTURED STARCH-BASED COMPOSITIONS AND COMPOSITIONS SO OBTAINED| US5288765A|1989-08-03|1994-02-22|Spherilene S.R.L.|Expanded articles of biodegradable plastics materials and a method for their production| IT1232910B|1989-08-07|1992-03-05|Butterfly Srl|POLYMERIC COMPOSITIONS FOR THE PRODUCTION OF BIODEGRADABLE PLASTIC ITEMS AND PROCEDURES FOR THEIR PREPARATION| US5409973A|1989-08-07|1995-04-25|Butterfly S.R.L.|Polymer composition including destructured starch and an ethylene copolymer| FR2664603B1|1990-07-10|1994-04-29|Roquette Freres|METHOD FOR THE ION PERMUTATION OF IONIZED STARCHES AND IONIZED STARCHES THUS OBTAINED.| IT1240503B|1990-07-25|1993-12-17|Butterfly Srl|STARCH POLYMERIC MIXTURE PARTICULARLY FOR THE PRODUCTION OF FILMS AND SIMILAR AND PROCEDURE FOR ITS PRODUCTION.| IT1242722B|1990-08-09|1994-05-17|Butterfly Srl|LAYERED STARCH FILM AND LOW PERMEABILITY AND PROCEDURE FOR ITS PRODUCTION.| US5037929A|1990-08-22|1991-08-06|Kansas State University Research Found.|Process for the preparation of granular cold water-soluble starch| US5091262A|1990-08-27|1992-02-25|Rexene Products Company|Starch filled coextruded degradable polyethylene film| JP3201609B2|1990-08-30|2001-08-27|ワーナー―ランバート・コンパニー|Molded articles obtained from thermoplastic starch melt| CA2079095A1|1991-01-25|1992-07-26|Wolfgang Bartsch|Process and equipment for the production of a product containing starch and/or at least one starch derivative| US5292782A|1991-02-20|1994-03-08|Novamont S.P.A.|Biodegradable polymeric compositions based on starch and thermoplastic polymers| IT1245485B|1991-05-03|1994-09-20|Butterfly Srl|PERMSELECTIVE MEMBRANES AND THEIR USE| US5412005A|1991-05-03|1995-05-02|Novamont S.P.A.|Biodegradable polymeric compositions based on starch and thermoplastic polymers| US5217803A|1991-06-26|1993-06-08|Tredegar Industries, Inc.|Disposable absorbent articles with biodegradable backsheets| US5254607A|1991-06-26|1993-10-19|Tredegar Industries, Inc.|Biodegradable, liquid impervious films| JP3280972B2|1991-06-26|2002-05-13|ザ、プロクター、エンド、ギャンブル、カンパニー|Disposable absorbent article having a biodegradable backsheet| KR100215378B1|1991-06-26|1999-09-01|데이비드 엠 모이어|Biodegradable, liquid impervious films| EP0525245A1|1991-08-01|1993-02-03|NOVAMONT S.p.A.|Disposable absorbent articles| SG47625A1|1991-11-14|1998-04-17|Bio Tech Biolog Naturverparkun|Biodegradable mould material| IT1256693B|1992-03-10|1995-12-12|Novamont Spa|FILMABLE AMIDACEA POLYMERIC COMPOSITION, AND SHAPED ITEMS, PARTICULARLY FILMS AND LEAVES OBTAINED FROM SUCH COMPOSITION, HAVING HIGH BARRIER EFFECT AND RELATED PROCEDURE.| US5939467A|1992-06-26|1999-08-17|The Procter & Gamble Company|Biodegradable polymeric compositions and products thereof| AT163883T|1992-06-26|1998-03-15|Procter & Gamble|Biodegradable, liquid-impermeable multilayer film composition| US5830305A|1992-08-11|1998-11-03|E. Khashoggi Industries, Llc|Methods of molding articles having an inorganically filled organic polymer matrix| US5716675A|1992-11-25|1998-02-10|E. Khashoggi Industries|Methods for treating the surface of starch-based articles with glycerin| US5830548A|1992-08-11|1998-11-03|E. Khashoggi Industries, Llc|Articles of manufacture and methods for manufacturing laminate structures including inorganically filled sheets| US5738921A|1993-08-10|1998-04-14|E. Khashoggi Industries, Llc|Compositions and methods for manufacturing sealable, liquid-tight containers comprising an inorganically filled matrix| US5508072A|1992-08-11|1996-04-16|E. Khashoggi Industries|Sheets having a highly inorganically filled organic polymer matrix| US5928741A|1992-08-11|1999-07-27|E. Khashoggi Industries, Llc|Laminated articles of manufacture fashioned from sheets having a highly inorganically filled organic polymer matrix| US5662731A|1992-08-11|1997-09-02|E. Khashoggi Industries|Compositions for manufacturing fiber-reinforced, starch-bound articles having a foamed cellular matrix| US5736209A|1993-11-19|1998-04-07|E. Kashoggi, Industries, Llc|Compositions having a high ungelatinized starch content and sheets molded therefrom| US5776388A|1994-02-07|1998-07-07|E. Khashoggi Industries, Llc|Methods for molding articles which include a hinged starch-bound cellular matrix| US5683772A|1992-08-11|1997-11-04|E. Khashoggi Industries|Articles having a starch-bound cellular matrix reinforced with uniformly dispersed fibers| US5658603A|1992-08-11|1997-08-19|E. Khashoggi Industries|Systems for molding articles having an inorganically filled organic polymer matrix| US5851634A|1992-08-11|1998-12-22|E. Khashoggi Industries|Hinges for highly inorganically filled composite materials| US6083586A|1993-11-19|2000-07-04|E. Khashoggi Industries, Llc|Sheets having a starch-based binding matrix| US5582670A|1992-08-11|1996-12-10|E. Khashoggi Industries|Methods for the manufacture of sheets having a highly inorganically filled organic polymer matrix| US5618341A|1992-08-11|1997-04-08|E. Khashoggi Industries|Methods for uniformly dispersing fibers within starch-based compositions| US5660903A|1992-08-11|1997-08-26|E. Khashoggi Industries|Sheets having a highly inorganically filled organic polymer matrix| US5709827A|1992-08-11|1998-01-20|E. Khashoggi Industries|Methods for manufacturing articles having a starch-bound cellular matrix| US5810961A|1993-11-19|1998-09-22|E. Khashoggi Industries, Llc|Methods for manufacturing molded sheets having a high starch content| US5506046A|1992-08-11|1996-04-09|E. Khashoggi Industries|Articles of manufacture fashioned from sheets having a highly inorganically filled organic polymer matrix| US5705203A|1994-02-07|1998-01-06|E. Khashoggi Industries|Systems for molding articles which include a hinged starch-bound cellular matrix| US5843544A|1994-02-07|1998-12-01|E. Khashoggi Industries|Articles which include a hinged starch-bound cellular matrix| US5545450A|1992-08-11|1996-08-13|E. Khashoggi Industries|Molded articles having an inorganically filled organic polymer matrix| US5800647A|1992-08-11|1998-09-01|E. Khashoggi Industries, Llc|Methods for manufacturing articles from sheets having a highly inorganically filled organic polymer matrix| US5660900A|1992-08-11|1997-08-26|E. Khashoggi Industries|Inorganically filled, starch-bound compositions for manufacturing containers and other articles having a thermodynamically controlled cellular matrix| FR2696153B1|1992-09-28|1994-12-16|Pascal Christian|Method for manufacturing interior packings of packings, packings obtained and packagings comprising such packings.| GB9224557D0|1992-11-24|1993-01-13|Cerestar Holding Bv|Starch based material| US5320669A|1992-12-14|1994-06-14|Iowa State University Research Foundation, Inc.|Cereal grain-based biodegradable thermoplastic compositions| US5910520A|1993-01-15|1999-06-08|Mcneil-Ppc, Inc.|Melt processable biodegradable compositions and articles made therefrom| DK169728B1|1993-02-02|1995-01-23|Stein Gaasland|Process for releasing cellulose-based fibers from each other in water and molding for plastic molding of cellulosic fiber products| GB9313329D0|1993-06-28|1993-08-11|Scherer Ltd R P|Softgel capsule shell compositions| US6168857B1|1996-04-09|2001-01-02|E. Khashoggi Industries, Llc|Compositions and methods for manufacturing starch-based compositions| JP4064476B2|1996-03-29|2008-03-19|エラワンファーマスーティカルリサーチアンドラボラトリーカンパニーリミテッド|Spherical agglomerated starch with silicon dioxide| US5811476A|1996-10-04|1998-09-22|Solomon; Paul|Aqueous gel-filled thermoplastic pattern-forming compositions and related methods| US6000928A|1997-04-03|1999-12-14|Technophar Equipment & Service Limited|Capsule making machine having improved pin bars and air flow characteristics| US5945136A|1997-04-03|1999-08-31|Technophar Equipment & Service Limited|Heating elevator for capsule making machine| US6159516A|1999-01-08|2000-12-12|Tfh Publication, Inc.|Method of molding edible starch| US6210709B1|1999-03-24|2001-04-03|Elementis Specialties, Inc.|Flexible gelatin free encapsulation material useful for pharmaceuticals, paint balls and other formulations| CN100374467C|2003-02-10|2008-03-12|阿韦贝合作公司|Method for preparing a gellable starch product| EP2115008B1|2007-03-01|2019-09-18|De Staat der Nederlanden, vert. door de Minister van Volksgezondheid, Welzijn en Sport, namens de Minister, Projectdirectie ALT, het INTRAVACC|Biodegradable material based on opened starch| US8486439B2|2007-03-01|2013-07-16|Bioneedle Technologies Group B.V.|Parenteral formulation| US20140303291A1|2011-11-15|2014-10-09|Showa Denko K.K.|Biodegradable resin composition, and biodegradable film| WO2013073402A1|2011-11-15|2013-05-23|昭和電工株式会社|Biodegradable resin composition, and biodegradable film| AU2014235254B2|2013-03-15|2017-11-23|Mars, Incorporated|Extruder system and method| JP2016196536A|2015-04-02|2016-11-24|昭和電工株式会社|Resin composition and film thereof| US11111363B2|2015-06-30|2021-09-07|BiologiQ, Inc.|Articles formed with renewable and/or sustainable green plastic material and carbohydrate-based polymeric materials lending increased strength and/or biodegradability| US11149144B2|2015-06-30|2021-10-19|BiologiQ, Inc.|Marine biodegradable plastics comprising a blend of polyester and a carbohydrate-based polymeric material| US11046840B2|2015-06-30|2021-06-29|BiologiQ, Inc.|Methods for lending biodegradability to non-biodegradable plastic materials| US10920044B2|2015-06-30|2021-02-16|BiologiQ, Inc.|Carbohydrate-based plastic materials with reduced odor| US10995201B2|2015-06-30|2021-05-04|BiologiQ, Inc.|Articles formed with biodegradable materials and strength characteristics of the same| US10919203B2|2015-06-30|2021-02-16|BiologiQ, Inc.|Articles formed with biodegradable materials and biodegradability characteristics thereof| US10752759B2|2015-06-30|2020-08-25|BiologiQ, Inc.|Methods for forming blended films including renewable carbohydrate-based polymeric materials with high blow up ratios and/or narrow die gaps for increased strength| US11111355B2|2015-06-30|2021-09-07|BiologiQ, Inc.|Addition of biodegradability lending additives to plastic materials| EP3452548A4|2016-05-05|2020-01-22|Cargill, Incorporated|Wood adhesive compositions comprising proteins and poly , and uses thereof| JP6948352B2|2016-07-08|2021-10-13|ロケット フレールRoquette Freres|Hydrogenated glucose polymer composition containing dietary fiber| CN107815126A|2017-11-10|2018-03-20|西达(无锡)生物科技有限公司|A kind of converted starch and its preparation method and application|
法律状态:
优先权:
[返回顶部]
申请号 | 申请日 | 专利标题 GB8801562A|GB2214516B|1988-01-25|1988-01-25|Method of producing destructurised starch| 相关专利
Sulfonates, polymers, resist compositions and patterning process
Washing machine
Washing machine
Device for fixture finishing and tension adjusting of membrane
Structure for Equipping Band in a Plane Cathode Ray Tube
Process for preparation of 7 alpha-carboxyl 9, 11-epoxy steroids and intermediates useful therein an
国家/地区
|