WO2014113858A1 - Water-soluble plastic composition and method for producing the same - Google Patents
Water-soluble plastic composition and method for producing the same Download PDFInfo
- Publication number
- WO2014113858A1 WO2014113858A1 PCT/BR2014/000022 BR2014000022W WO2014113858A1 WO 2014113858 A1 WO2014113858 A1 WO 2014113858A1 BR 2014000022 W BR2014000022 W BR 2014000022W WO 2014113858 A1 WO2014113858 A1 WO 2014113858A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- plastic
- plastic composition
- soluble plastic
- producing
- Prior art date
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 27
- 229920003023 plastic Polymers 0.000 title claims abstract description 27
- 239000000203 mixture Substances 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920002472 Starch Polymers 0.000 claims abstract description 7
- 239000008107 starch Substances 0.000 claims abstract description 7
- 235000019698 starch Nutrition 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims abstract description 5
- 239000002985 plastic film Substances 0.000 claims abstract description 4
- 229920006255 plastic film Polymers 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 240000003183 Manihot esculenta Species 0.000 description 2
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 2
- 229920000704 biodegradable plastic Polymers 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 241000218631 Coniferophyta Species 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/04—Starch derivatives, e.g. crosslinked derivatives
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/54—Starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
Definitions
- the present invention describes a water soluble plastic composition and the process for obtaining it. More specifically it comprises a formulation that does not use any petroleum derivatives, said plastic that reacts upon contact with any liquid medium, returning to liquid form and hydrolyzing with the receiving liquid body, without altering the physical and chemical property of the liquid.
- Plastics are materials formed by the joining of large molecular chains called polymers, a high molecular weight petroleum derivative, consisting of molecules characterized by the repetition of one or more types of monomers (ABNT, 2008).
- plastic waste represents about 15 to 20% of the volume of waste in dumps, taking about 4 to 5 centuries to degrade. Due to the non-biodegradable nature of most plastics, environmentalists are very concerned about the waste they produce, which contributes largely to environmental pollution. In the US, 30% of total volume The waste produced daily consists of plastics. In the city of S ⁇ o Paulo, 12,000ton./day of waste is produced, of which about 10% is made of plastic material.
- Biodegradable plastic requires specific conditions to be able to degrade properly and, if not handled with care, can become worse for the environment than conventional plastic. These plastics, if degraded by anaerobic microorganisms, generate methane, a 23 times more potent greenhouse gas, in addition to being explosive.
- the object of the present invention is a water-soluble plastic composition that does not use any petroleum-derived component, fulfilling its function of being effectively ecological, said water-soluble plastic that reacts in contact with a liquid medium, returning to liquid form and hydrolyzing with water. the receiving liquid body.
- Water-soluble plastic comprises a starch, catalyst and silica filler with a water base, forming a gel that is flattened on a cellulosic substrate and subjected to heating to generate a plastic film which upon contact with a liquid rapidly dilutes and hydrolyzes. without changing the physical and chemical property of the liquid.
- the water-soluble plastic composition object of the present invention comprises a starch filler, a catalyst and silica with a water base.
- Starch load can be selected from maize, cassava, cassava, potato, eucalyptus xylem, pine, conifer, among others.
- sodium hydroxide is added to neutralize the solution.
- calcite powder type resin is used.
- the process of obtaining water-soluble plastic comprises mixing the starch with water, catalyst and resin, said gel-forming mixture.
- the obtained gel is flattened on a substrate following a drying unit with a temperature between 20 and 80 ° C, forming a plastic film that in contact with a liquid quickly dilutes and hydrolyzes without changing the physical and chemical property of the liquid.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A water-soluble plastic composition is described comprising a starch filler, a catalyst and silica with a water base, which composition forms a gel that is spread on a substrate and dried at a temperature from 20 to 80 °C to form a plastic film.
Description
COMPOSIÇÃO DE PLÁSTICO HIDROSSOLÚVEL E PROCESSO WATER SOLUBLE PLASTIC COMPOSITION AND PROCESS
DE OBTENÇÃO OBTAINING
CAMPO DA INVENÇÃO FIELD OF INVENTION
A presente invenção descreve uma composição de plástico hidrossolúvel e o respectivo processo de obtenção. Mais especificamente compreende uma formulação que não utiliza nenhum derivado de petróleo, dito plástico que reage ao fazer contato com qualquer meio líquido, retornando à forma liquida e hidrolisando com o corpo liquido receptor, sem alterar a propriedade física e química do líquido. The present invention describes a water soluble plastic composition and the process for obtaining it. More specifically it comprises a formulation that does not use any petroleum derivatives, said plastic that reacts upon contact with any liquid medium, returning to liquid form and hydrolyzing with the receiving liquid body, without altering the physical and chemical property of the liquid.
ANTECEDENTES DA INVENÇÃO BACKGROUND OF THE INVENTION
Os plásticos são materiais formados pela união de grandes cadeias moleculares chamadas polímeros, uma substância derivadado petróleo de alta massa molar, que consiste em moléculas caracterizadas pela repetição de um ou mais tipos de monômeros (ABNT, 2008). Plastics are materials formed by the joining of large molecular chains called polymers, a high molecular weight petroleum derivative, consisting of molecules characterized by the repetition of one or more types of monomers (ABNT, 2008).
A fabricação de plásticos exige uma boa quantidade de água, produzindo resíduos e emissão de gases estufa, envolvendo ainda a utilização de substâncias químicas perigosas e gerando substâncias tóxicas durante a fabricação. The manufacture of plastics requires a good amount of water, producing waste and greenhouse gas emissions, also involving the use of hazardous chemicals and generating toxic substances during manufacture.
No setor de embalagens, o uso intenso de plásticos gera grandes quantidades de resíduos que são descartados no meio ambiente. Atualmente, os resíduos plásticos representam cerca de 15 a20% do volume de resíduos nos lixões, levando em torno de 4 a 5 séculos para se degradarem. Devido à natureza não biodegradável da maioria dos plásticos, há uma grande preocupação dos ambientalistas com relação ao lixo produzido pelos mesmos, o qual contribui em grande parte pela poluição do meio ambiente. Nos EUA, 30% do volume total
de lixo produzido diariamente é constituído de plásticos. Já na cidade de São Paulo, são produzidas 12.000ton./dia de lixo, dos quais cerca de 10% constituem-se de material plástico. In the packaging sector, the heavy use of plastics generates large amounts of waste that is disposed of in the environment. Currently, plastic waste represents about 15 to 20% of the volume of waste in dumps, taking about 4 to 5 centuries to degrade. Due to the non-biodegradable nature of most plastics, environmentalists are very concerned about the waste they produce, which contributes largely to environmental pollution. In the US, 30% of total volume The waste produced daily consists of plastics. In the city of São Paulo, 12,000ton./day of waste is produced, of which about 10% is made of plastic material.
Segundo Narayan [NARAYAN, R. Starch Basead Biodegradable Palstics& Products. In Third Inter. Symp. on Nat. Polym. Comp. (ISNAPOL) Proceedings, São Pedro - SP, Brazil, 2000, p.201-205.] as novas leis ambientais e a conscientização da sociedade moderna sobre a preservação do meio ambiente têm levado à pesquisa de novos produtos e processos que sejam ambientalmente compatíveis. Uma atual abordagem no desenvolvimento de novos materiais está atenta a todo o seu ciclo de vida, isto é, considera os impactos causados desde a matéria-prima empregada até o destino final do produto (descarte). Embora relativamente poucos produtos sejam concebidos considerando-se seu destino final (descarte ou reciclagem e descarte), os plásticos de descartabilidade rápida têm sido os produtos criticados com maior frequência sob este aspecto. Tais materiais apresentam impacto ambiental, na medida que embalagens de descartabilidade rápida assumem grande proporção do lixo urbano [SILVA, L.F. Ensaios para Avaliação da Biodegradabilidade de Plásticos. Anais do 4o Seminário das Comissões Técnicas da ABPOL, S P, 31/05 a 1/06 de 2000, p.10-12.]. According to Narayan [NARAYAN, R. Starch Basead Biodegradable Palstics & Products. In Third Inter. Symp. on Nat. Polym. Comp. (ISNAPOL) Proceedings, São Pedro - SP, Brazil, 2000, p.201-205.] The new environmental laws and the awareness of the modern society about the preservation of the environment have led to the research of new products and processes that are environmentally compatible. . A current approach in the development of new materials is attentive to their entire life cycle, that is, considers the impacts caused from the raw material used to the final destination of the product (disposal). Although relatively few products are designed with regard to their final destination (disposal or recycling and disposal), fast disposable plastics have been the most frequently criticized products in this regard. Such materials have an environmental impact, as fast disposable packages assume a large proportion of urban waste [SILVA, LF Plastic Biodegradability Assessment Tests]. 4 Seminar Proceedings of the Technical Committees of the ABPOL, SP, 31/05 to 1/06, 2000, p.10-12.].
No entanto, as exigências crescentes para a sustentabilidade e preservação do meio ambiente tornam os materiais biodegradáveis um fator competitivo para muitos setores ligados ou dependentes desses materiais. However, increasing demands for sustainability and environmental preservation make biodegradable materials a competitive factor for many industries linked to or dependent on these materials.
As pesquisas apontam na substituição dos plásticos convencionais por plásticos biodegradáveis, que constituem uma família de plásticos que se degradam sob a ação de organismos vivos
e também por meio de reações abióticas, tais como fotodegradação, oxidação e hidrólise, que podem alterar o plástico devido a fatores ambientais (RAGHAVAN, D. Polym. Plast. Technol. Eng. 41 1995.0 E (A ASS, W., AMASS, A., TIGHE, B. Polymer International 47, p.89- 144 (1998). Research points to replacing conventional plastics with biodegradable plastics, which are a family of plastics that degrade under the action of living organisms. and also through abiotic reactions such as photodegradation, oxidation and hydrolysis, which may alter plastic due to environmental factors (RAGHAVAN, D. Polym. Plast. Technol. Eng. 41 1995.0 E (A ASS, W., AMASS, A., TIGHE, B. Polymer International 47, p.89-144 (1998).
O plástico biodegradável requer condições específicas para poder degradar-se corretamente e, se não houver um grande cuidado em manejá-lo, pode tornar-se para o ambiente pior do que o plástico convencional. Estes plásticos, se degradados por microorganismos anaeróbicos, gera metano, um gás 23 vezes mais potente como efeito estufa, além de ser explosivo. Biodegradable plastic requires specific conditions to be able to degrade properly and, if not handled with care, can become worse for the environment than conventional plastic. These plastics, if degraded by anaerobic microorganisms, generate methane, a 23 times more potent greenhouse gas, in addition to being explosive.
Mais recentemente, o estado da técnica descreve plásticos hidrossolúveis que são completamente solúveis em água, não deixam resíduos e são inofensivos à saúde. More recently, prior art describes water soluble plastics that are completely water soluble, leave no residue and are harmless to health.
No entanto, estes plásticos hidrossolúveis utilizam matéria-prima originada do petróleo, mesmo aqueles que fazem uso de cargas vegetais ou similares. However, these water-soluble plastics use petroleum-based raw materials, even those that make use of vegetable fillers or the like.
Dessa forma, é objeto da presente invenção uma composição de plástico hidrossolúvel que não utiliza nenhum componente derivado do petróleo, cumprindo a sua função de ser efetivamente ecológico, dito plástico hidrossolúvel que reage em contato com um meio líquido, voltando à forma líquida e hidrolisando com o corpo líquido receptor. O plástico hidrossolúvel compreende uma carga de amido, um catalisador e sílica com uma base de água, formando um gel que é espalmado em um substrato celulósico e submetido a aquecimento de forma a gerar uma película plástica que em contato com um líquido dilui rapidamente e hidrolisa, sem alterar a propriedade física e química do líquido.
DESCRIÇÃO DETALHADA DA INVENÇÃO Thus, the object of the present invention is a water-soluble plastic composition that does not use any petroleum-derived component, fulfilling its function of being effectively ecological, said water-soluble plastic that reacts in contact with a liquid medium, returning to liquid form and hydrolyzing with water. the receiving liquid body. Water-soluble plastic comprises a starch, catalyst and silica filler with a water base, forming a gel that is flattened on a cellulosic substrate and subjected to heating to generate a plastic film which upon contact with a liquid rapidly dilutes and hydrolyzes. without changing the physical and chemical property of the liquid. DETAILED DESCRIPTION OF THE INVENTION
A composição de plástico hidrossolúvel, objeto da presente invenção, compreende uma carga de amido, um catalisador e sílica com uma base de água. The water-soluble plastic composition object of the present invention comprises a starch filler, a catalyst and silica with a water base.
A carga de amido pode ser selecionada dentre milho, mandioca, aipim, batata, xilema do eucalipto, pinus, conífera, entre outros. Starch load can be selected from maize, cassava, cassava, potato, eucalyptus xylem, pine, conifer, among others.
Opcionalmente, é adicionado hidróxido de sódio para neutralizar a solução. Optionally, sodium hydroxide is added to neutralize the solution.
Preferentemente, é utilizada resina tipo calcita em pó. Preferably, calcite powder type resin is used.
O processo de obtenção de plástico hidrossolúvel compreende a mistura do amido com água, catalisador e a resina, dita mistura que forma um gel. The process of obtaining water-soluble plastic comprises mixing the starch with water, catalyst and resin, said gel-forming mixture.
O gel obtido é espalmado sobre um substrato para seguir a uma unidade de secagem com temperatura entre 20 a 80°C, formando uma película plástica que em contato com um líquido dilui rapidamente e hidrolisa, sem alterar a propriedade física e química do líquido.
The obtained gel is flattened on a substrate following a drying unit with a temperature between 20 and 80 ° C, forming a plastic film that in contact with a liquid quickly dilutes and hydrolyzes without changing the physical and chemical property of the liquid.
Claims
1. COMPOSIÇÃO DE PLÁSTICO HIDROSSOLÚVEL caracterizado por compreender uma carga de amido, um catalisador e sílica com uma base de água. 1. HYDROSOLUBLE PLASTIC COMPOSITION characterized in that it comprises a starch filler, a catalyst and silica with a water base.
2. COMPOSIÇÃO DE PLÁSTICO HIDROSSOLÚVEL, de acordo com a reivindicação 1 , caracterizado pelo fato de opcionalmente ser adicionado hidróxido de sódio. HYDROSOLUBLE PLASTIC COMPOSITION according to claim 1, characterized in that sodium hydroxide is optionally added.
3. PROCESSO DE OBTENÇÃO da composição reivindicada em 1, caracterizado por compreender as etapas de misturar o amido com água, o catalisador e a resina, formando um gel que a seguir é espalmado sobre um substrato, seguindo para secagem a temperatura entre 20 a 80°C para formação de uma película plástica.
Process for obtaining the composition of claim 1, characterized in that it comprises the steps of mixing the starch with water, the catalyst and the resin to form a gel which is then spread over a substrate and then dried for 20 to 80 ° C. ° C for forming a plastic film.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRBR102013001992-5A BR102013001992A2 (en) | 2013-01-28 | 2013-01-28 | WATER SOLUBLE PLASTIC COMPOSITION AND OBTAINING PROCESS |
| BRBR1020130019925 | 2013-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014113858A1 true WO2014113858A1 (en) | 2014-07-31 |
Family
ID=51226768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/BR2014/000022 WO2014113858A1 (en) | 2013-01-28 | 2014-01-27 | Water-soluble plastic composition and method for producing the same |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BR102013001992A2 (en) |
| WO (1) | WO2014113858A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB964799A (en) * | 1960-04-13 | 1964-07-22 | Hercules Powder Co Ltd | Thermoplastic amylaceous compositions and their use in preparing shaped or coated articles |
| US3652371A (en) * | 1970-11-27 | 1972-03-28 | Kuraray Co | Water soluble plastic film and method of manufacturing same |
| US3791902A (en) * | 1971-11-12 | 1974-02-12 | Kimberly Clark Co | Method for coating tampons with water-soluble film |
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| GB2191379A (en) * | 1986-06-02 | 1987-12-16 | Pacific Kenyon Corp | Animal feed block and packaging method for block |
| JPH11314643A (en) * | 1998-05-01 | 1999-11-16 | Hokushin:Kk | Wet material for civil engineering and construction |
| JP2001150885A (en) * | 1999-11-24 | 2001-06-05 | Miracle Kogyo Kk | Manufacturing method for transfer seal with three- dimensional emblem |
| GB2419864A (en) * | 2003-12-19 | 2006-05-10 | Reckitt Benckiser Nv | Injection moulded water-soluble container containing a detergent |
| CN101186738A (en) * | 2007-04-04 | 2008-05-28 | 河北保立洁环保科技有限责任公司 | Water-soluble plastic film and preparation method thereof |
| US7714064B2 (en) * | 2003-04-09 | 2010-05-11 | Yang Thomas P | Controllable and rapid solubility rate of water-soluble polymeric films |
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| US7919030B2 (en) * | 2005-07-22 | 2011-04-05 | Airbus Operations Gmbh | Method for producing single- or multi-layered fiber preforms by the TFP Process as well as a fixing thread and backing layer |
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-
2013
- 2013-01-28 BR BRBR102013001992-5A patent/BR102013001992A2/en not_active Application Discontinuation
-
2014
- 2014-01-27 WO PCT/BR2014/000022 patent/WO2014113858A1/en active Application Filing
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB964799A (en) * | 1960-04-13 | 1964-07-22 | Hercules Powder Co Ltd | Thermoplastic amylaceous compositions and their use in preparing shaped or coated articles |
| US3652371A (en) * | 1970-11-27 | 1972-03-28 | Kuraray Co | Water soluble plastic film and method of manufacturing same |
| US3791902A (en) * | 1971-11-12 | 1974-02-12 | Kimberly Clark Co | Method for coating tampons with water-soluble film |
| US4277358A (en) * | 1977-01-27 | 1981-07-07 | Hopkins Lamar | Environmentally degradable soap bar system |
| GB2191379A (en) * | 1986-06-02 | 1987-12-16 | Pacific Kenyon Corp | Animal feed block and packaging method for block |
| CA1300421C (en) * | 1986-06-02 | 1992-05-12 | John Findley | Animal feed block and packaging method |
| JPH11314643A (en) * | 1998-05-01 | 1999-11-16 | Hokushin:Kk | Wet material for civil engineering and construction |
| JP2001150885A (en) * | 1999-11-24 | 2001-06-05 | Miracle Kogyo Kk | Manufacturing method for transfer seal with three- dimensional emblem |
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| BR102013001992A2 (en) | 2014-09-09 |
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