WO2020161363A1 - Container for packaging food products that is suitable for microwave ovens and use of same - Google Patents
Container for packaging food products that is suitable for microwave ovens and use of same Download PDFInfo
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- WO2020161363A1 WO2020161363A1 PCT/ES2019/070057 ES2019070057W WO2020161363A1 WO 2020161363 A1 WO2020161363 A1 WO 2020161363A1 ES 2019070057 W ES2019070057 W ES 2019070057W WO 2020161363 A1 WO2020161363 A1 WO 2020161363A1
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- container
- food products
- packaging
- lid
- food
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
Definitions
- the present invention relates to a container for packaging food products suitable for use with microwave ovens, as well as to the use thereof.
- the invention provides a packaging container for cooked food products of the type that includes a cylindrical body and an upper lid, both made of a metallic material, the lid being capable of being removed from the cylindrical body when which is attached, where the packaging container allows, once the lid is removed, the heating of the food product contained therein by microwave irradiation without the need to previously extract said food from the container and with all the guarantees of food safety.
- the invention relates to the use of said container for heating the products contained therein.
- plastic or glass containers have been used for heating food products by microwave irradiation, metal containers have not been used.
- food canned in metal containers must be poured into another container suitable for this use, such as plastic containers suitable for microwaves or ceramic or glass containers.
- container EP2722293 describes a container formed in part of a generally disposable material, such as paper, cardboard and / or one or more polymeric materials that includes one or more protection elements against microwave energy, comprising a metal foil. or a high optical density material to reflect essentially all of the received microwave energy.
- Each microwave energy shield element can be shaped or contoured as needed to minimize hot spots in the container and / or to mitigate the effect of hot spots in the microwave oven, thereby reducing charring of the construction. and the adjacent food.
- a metal container for microwave oven comprising a molded body integrally with a base and a wall divided into at least one wall section extending from the perimeter of the base to contain products, with a height maximum of 40 percent of the wavelength of radiation emitted by the microwave oven; where all the angles formed by the inside of the container at the intersection of planes between the sections are greater than 90 ° and such intersections are chamfered, with an arc section with a radius of at least 0.5 mm, where the ends of the arc are at the points where the planes that intersect to form the angles are tangent to the arc.
- the known containers are suitable for use in a microwave oven, their construction is complex and difficult to implement in industrial processes for packaging prepared foods.
- the present invention solves these disadvantages of known microwave-safe containers and furthermore provides a container that is easily implantable on an industrial scale and safe in order of use, without causing damage to the microwave apparatus or migration of materials from the container to the food in he contained, guaranteeing all food health requirements.
- the possibility of heating food in a metal container offers the consumer the convenience of consuming the food in the same container for packaging and preservation, metal containers being the most widely and commonly used for packaging, preservation and storage of food, such as Sustainable alternative to other microwave-safe plastic containers.
- the invention provides a container for packaging of cooked food products of the type that includes a usually cylindrical base and an upper lid, both made of a metallic material, the lid being capable of being removed from the cylindrical base to which it is attached. together, where the packaging container allows, once the lid is removed, the heating of the food product contained therein by means of microwave irradiation without the need to previously extract said food from the container.
- the packaging container of the invention is made up of a cylindrical body with rounded edges made of electrolytic tinplate and whose dimensions maintain a diameter: height ratio between 1.60 and 1.75.
- the shape and size ratio of the body of the container of the invention plays a critical role during the process of heating the food by microwave radiation.
- the presence of rounded edges on the body of the container prevents the possible formation of an electric arc due to the metal of the container and the proportion in terms of its size facilitates the reflection of microwaves by the body of the container and the generation volumetric heat in its interior, facilitating a homogeneous heating of its uneven content.
- the body of the container has a diameter of 99 ⁇ 0.50 mm and a height of 57.4 ⁇ 0.50 mm.
- the container of the invention also consists of an anchored metal lid, preferably of the "easy-open” type, also made of electrolytic tinplate.
- this lid is part of the container of the invention, since it contains a preserved food product, such a lid must be removed before introducing the container of the invention in the microwave, so it is not described in more detail here.
- both the body of the container and the lid are coated on their inner surface with a coating selected from the group consisting of epoxyphenolic and organosol-type varnishes, for example porcelain-modified epoxyphenolic varnish, gold epoxyphenolic varnish, gold epoxyphenolic varnish + zinc oxide, aluminum epoxyphenolic varnish or any other coating suitable for food use.
- a coating selected from the group consisting of epoxyphenolic and organosol-type varnishes, for example porcelain-modified epoxyphenolic varnish, gold epoxyphenolic varnish, gold epoxyphenolic varnish + zinc oxide, aluminum epoxyphenolic varnish or any other coating suitable for food use.
- the invention also relates to the use of the container described above for heating cooked products contained therein.
- the lid of the container containing cooked food products of the invention must be removed before introducing said container in the microwave oven, the container is placed at a minimum distance from the interior walls of the oven of 5 cm, preferably in the center of its inner base and heating must be carried out at a microwave power of 1,000 W for 4 minutes.
- the containers were subjected to heating processes in 4 different microwave models (DAEWO Mod. KOC-9Q4T, maximum power: 1400kw, Moulinex Mod. FM 421, maximum power 1300 kw; Fersay Mod. MC 02015, maximum power 1200 kw: BLUESKY Mod. BMO 20-8, maximum power 1270 kw).
- DAEWO Mod. KOC-9Q4T maximum power: 1400kw
- Moulinex Mod. FM 421 maximum power 1300 kw
- Fersay Mod. MC 02015 maximum power 1200 kw: BLUESKY Mod. BMO 20-8, maximum power 1270 kw.
- the packaging of the invention complies with the global migration limit established in Regulation (EU) No. 10/2011 of the Commission of January 14, 2011, on plastic materials and objects intended for come into contact with food.
- EU Regulation
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Cookers (AREA)
- Package Specialized In Special Use (AREA)
Abstract
Description
RECIPIENTE DE ENVASADO DE PRODUCTOS ALIMENTICIOS APTO PARA HORNOS MICROONDAS Y UTILIZACIÓN DEL MISMO FOOD PRODUCT PACKAGING CONTAINER SUITABLE FOR MICROWAVE OVENS AND THE USE OF THE SAME
La presente invención se refiere a un recipiente de envasado de productos alimenticios apto para su uso con hornos microondas, así como a la utilización del mismo. The present invention relates to a container for packaging food products suitable for use with microwave ovens, as well as to the use thereof.
Más concretamente, en un primer aspecto, la invención proporciona un recipiente de envasado de productos alimenticios cocinados del tipo de los que incluyen un cuerpo cilindrico y una tapa superior, ambas fabricadas en un material metálico, siendo la tapa susceptible de retirarse del cuerpo cilindrico al que está unida, donde el recipiente de envasado permite, una vez retirada la tapa, el calentamiento del producto alimenticio en él contenido mediante irradiación por microondas sin necesidad de extraer previamente dicho alimento del envase y con todas las garantías de seguridad alimentaria. En un segundo aspecto, la invención se refiere a la utilización de dicho envase para el calentamiento de los productos contenidos en el mismo. More specifically, in a first aspect, the invention provides a packaging container for cooked food products of the type that includes a cylindrical body and an upper lid, both made of a metallic material, the lid being capable of being removed from the cylindrical body when which is attached, where the packaging container allows, once the lid is removed, the heating of the food product contained therein by microwave irradiation without the need to previously extract said food from the container and with all the guarantees of food safety. In a second aspect, the invention relates to the use of said container for heating the products contained therein.
Hasta la fecha, para el calentamiento de productos alimenticios por irradiación con microondas se han vienen utilizando envases de materiales plásticos o de vidrio, no empleándose los envases metálicos. Así, antes de calentarse en un microondas, los alimentos enlatados en envases metálicos deben verterse en otro recipiente apto para este uso, tales como envases plásticos adecuados para microondas o recipientes de cerámicos o de vidrio. To date, plastic or glass containers have been used for heating food products by microwave irradiation, metal containers have not been used. Thus, before being heated in a microwave, food canned in metal containers must be poured into another container suitable for this use, such as plastic containers suitable for microwaves or ceramic or glass containers.
Esto se debe principalmente a las propiedades de los metales de reflejar las microondas. Por ello, el comportamiento de un envase metálico sometido a una radiación con microondas es impredecible, ya que, si la reflexión es muy alta, el magnetrón del horno microondas puede resultar dañado. Por otra parte, las microondas generan corrientes eléctricas en los bordes metálicos, lo que puede provocar desde la fundición del metal hasta la aparición de arcos eléctricos en dichos bordes o partes afiladas. Por otra parte, dado que el calentamiento se produce por la penetración de las microondas en el alimento, la naturaleza de éste es determinante a la hora de conseguir un calentamiento uniforme. Así, en el caso de los alimentos preparados, por ejemplo guisos de legumbres o verduras con carnes o pescados, la heterogeneidad del producto alimenticio provoca que el calentamiento sea poco uniforme, básicamente debido a la diferente proporción de agua, grasas e hidratos de carbono presentes en el mismo. This is mainly due to the properties of metals to reflect microwaves. For this reason, the behavior of a metal container subjected to microwave radiation is unpredictable, since, if the reflection is very high, the magnetron of the microwave oven can be damaged. On the other hand, microwaves generate electrical currents at metal edges, which can cause anything from melting the metal to the appearance of electric arcs at said edges or sharp parts. On the other hand, since the heating is produced by the penetration of the microwaves in the food, the nature of this is decisive when it comes to achieving uniform heating. Thus, in the case of prepared foods, for example stews of legumes or vegetables with meat or fish, the heterogeneity of the food product causes the heating to be uneven, basically due to the different proportion of water, fat and carbohydrates present. in the same.
Del estado del técnica son conocidos recipientes adecuados para su uso en microondas. Por ejemplo en el documento EP2722293 se describe un envase formado en parte por un material generalmente desechable, como papel, cartón y/o uno o más materiales poliméricos que incluye uno o más elementos de protección contra la energía de microondas, que comprenden una lámina metálica o un material de alta densidad óptica para reflejar esencialmente la totalidad de la energía de microondas recibidas. Cada elemento de protección contra la energía de microondas puede ser conformado o contorneado según sea necesario para minimizar puntos calientes en el recipiente y/o para mitigar el efecto de los puntos calientes en el horno microondas, con lo que se reduce la carbonización de la construcción y del alimento adyacente. From the state of the art, containers suitable for use in microwaves are known. For example, document EP2722293 describes a container formed in part of a generally disposable material, such as paper, cardboard and / or one or more polymeric materials that includes one or more protection elements against microwave energy, comprising a metal foil. or a high optical density material to reflect essentially all of the received microwave energy. Each microwave energy shield element can be shaped or contoured as needed to minimize hot spots in the container and / or to mitigate the effect of hot spots in the microwave oven, thereby reducing charring of the construction. and the adjacent food.
Del documento WO2016009252 se conoce un recipiente metálico para horno de microondas que comprende un cuerpo moldeado de manera integral con una base y una pared dividida en al menos una sección de pared que se extiende desde el perímetro de la base para contener productos, con una altura máxima del 40 por ciento de la longitud de onda de la radiación emitida por el horno de microondas; donde todos los ángulos que se forman por la parte interna del recipiente en la intersección de planos entre las secciones son mayores a 90° y tales intersecciones tienen forma de chaflán, con sección de arco con un radio de al menos 0,5 mm, donde los extremos del arco están en los puntos en los que los planos que se intersectan para formar los ángulos, son tangentes al arco. From document WO2016009252 a metal container for microwave oven is known comprising a molded body integrally with a base and a wall divided into at least one wall section extending from the perimeter of the base to contain products, with a height maximum of 40 percent of the wavelength of radiation emitted by the microwave oven; where all the angles formed by the inside of the container at the intersection of planes between the sections are greater than 90 ° and such intersections are chamfered, with an arc section with a radius of at least 0.5 mm, where the ends of the arc are at the points where the planes that intersect to form the angles are tangent to the arc.
Si bien los recipientes conocidos son aptos para su uso en un horno microondas, su construcción es compleja y de difícil puesta en práctica en los procesos industriales de envasado de alimentos preparados. La presente invención soluciona estas desventajas de los recipientes aptos para microondas conocidos y además proporciona un recipiente fácilmente implantable a escala industrial y seguro en orden de uso, sin que se produzcan desperfectos en el aparato microondas ni exista migración de materiales del envase a los alimentos en él contenidos, garantizando todos los requisitos de salud alimentaria. La posibilidad de calentar alimentos en un recipiente metálico ofrece al consumidor la comodidad de consumir el alimento en el mismo recipiente de envasado y conservación, siendo los recipientes metálicos los utilizados de forma más extendida y habitual para el envasado, conservación y almacenamiento de alimentos, como alternativa sostenible a otros recipientes plásticos aptos para microondas. Although the known containers are suitable for use in a microwave oven, their construction is complex and difficult to implement in industrial processes for packaging prepared foods. The present invention solves these disadvantages of known microwave-safe containers and furthermore provides a container that is easily implantable on an industrial scale and safe in order of use, without causing damage to the microwave apparatus or migration of materials from the container to the food in he contained, guaranteeing all food health requirements. The possibility of heating food in a metal container offers the consumer the convenience of consuming the food in the same container for packaging and preservation, metal containers being the most widely and commonly used for packaging, preservation and storage of food, such as Sustainable alternative to other microwave-safe plastic containers.
Para ello, la invención proporciona un recipiente de envasado de productos alimenticios cocinados del tipo de los que incluyen una base habitualmente cilindrica y una tapa superior, ambas fabricadas en un material metálico, siendo la tapa susceptible de retirarse de la base cilindrica a la que está unida, donde el recipiente de envasado permite, una vez retirada la tapa, el calentamiento del producto alimenticio en él contenido mediante irradiación por microondas sin necesidad de extraer previamente dicho alimento del envase. For this, the invention provides a container for packaging of cooked food products of the type that includes a usually cylindrical base and an upper lid, both made of a metallic material, the lid being capable of being removed from the cylindrical base to which it is attached. together, where the packaging container allows, once the lid is removed, the heating of the food product contained therein by means of microwave irradiation without the need to previously extract said food from the container.
Como se ha mencionado anteriormente, el recipiente de envasado de la invención está conformado por un cuerpo cilindrico de bordes redondeados fabricado en hojalata electrolítica y cuyas dimensiones mantienen una proporción diámetro:altura entre 1 ,60 y 1 ,75. As mentioned above, the packaging container of the invention is made up of a cylindrical body with rounded edges made of electrolytic tinplate and whose dimensions maintain a diameter: height ratio between 1.60 and 1.75.
A este respecto, la conformación y la proporción en cuanto a las dimensiones del cuerpo del recipiente de la invención tiene un papel crítico durante el proceso de calentamiento del alimento por radiación de microondas. Por un lado, la presencia de bordes redondeados en el cuerpo del envase evita la posible formación de un arco eléctrico debido al metal del envase y la proporción en cuanto a su tamaño facilita la reflexión de las microondas por parte del cuerpo del envase y la generación volumétrica de calor en su interior, facilitando un calentamiento homogéneo del poco uniforme contenido del mismo. Preferentemente, el cuerpo del envase tiene un diámetro de 99 ± 0,50 mm y una altura de 57,4 ± 0,50 mm. In this regard, the shape and size ratio of the body of the container of the invention plays a critical role during the process of heating the food by microwave radiation. On the one hand, the presence of rounded edges on the body of the container prevents the possible formation of an electric arc due to the metal of the container and the proportion in terms of its size facilitates the reflection of microwaves by the body of the container and the generation volumetric heat in its interior, facilitating a homogeneous heating of its uneven content. Preferably, the body of the container has a diameter of 99 ± 0.50 mm and a height of 57.4 ± 0.50 mm.
El envase de la invención consta igualmente de una tapa metálica fondeada, preferentemente de tipo“abre-fácil”, también fabricada en hojalata electrolítica. Si bien esta tapa forma parte del envase de la invención, ya que éste contiene un producto alimenticio preservado, tal tapa debe ser retirada antes de introducir el envase de la invención en el microondas, por lo que no se describe aquí con más detalle. The container of the invention also consists of an anchored metal lid, preferably of the "easy-open" type, also made of electrolytic tinplate. Although this lid is part of the container of the invention, since it contains a preserved food product, such a lid must be removed before introducing the container of the invention in the microwave, so it is not described in more detail here.
Dado que el envase de la invención está concebido para contener productos alimenticios, tanto el cuerpo del envase como la tapa están revestidos por su superficie interior con un revestimiento seleccionado del grupo consistente en barnices epoxifenólicos y tipo organosol, por ejemplo barniz epoxifenólico modificado con porcelana, barniz epoxifenolico oro, barniz epoxifenolico oro+ óxido de zinc, barniz epoxifenolico aluminio o cualquier otro revestimiento apto para uso alimentario. Since the container of the invention is designed to contain food products, both the body of the container and the lid are coated on their inner surface with a coating selected from the group consisting of epoxyphenolic and organosol-type varnishes, for example porcelain-modified epoxyphenolic varnish, gold epoxyphenolic varnish, gold epoxyphenolic varnish + zinc oxide, aluminum epoxyphenolic varnish or any other coating suitable for food use.
La invención se refiere igualmente a la utilización del envase antes descrito para el calentamiento de productos cocinados contenidos en el mismo. The invention also relates to the use of the container described above for heating cooked products contained therein.
En este contexto, en primer lugar, la tapa del envase conteniendo productos alimenticios cocinados de la invención debe retirarse antes de introducir dicho envase en el horno microondas, el envase se dispone a una distancia mínima de las paredes interiores del horno de 5 cm, preferentemente en el centro de su base interior y el calentamiento se debe realizar a una potencia de microondas de 1.000 W durante 4 minutos. In this context, first of all, the lid of the container containing cooked food products of the invention must be removed before introducing said container in the microwave oven, the container is placed at a minimum distance from the interior walls of the oven of 5 cm, preferably in the center of its inner base and heating must be carried out at a microwave power of 1,000 W for 4 minutes.
En estas condiciones de uso se comprobado que se produce un calentamiento homogéneo del alimento sin que aparezca ningún arco eléctrico y, por tanto, ninguna chispa ni situación potencialmente peligrosa. Los hornos microondas utilizados tampoco sufrieron ningún tipo de daño o deterioro en su funcionamiento como consecuencia de los ensayos realizados en los siguientes ejemplos. Ejemplos Under these conditions of use, it has been found that the food is heated homogeneously without the appearance of any electric arc and, therefore, no spark or potentially dangerous situation. The microwave ovens used did not suffer any type of damage or deterioration in their operation as a result of the tests carried out in the following examples. Examples
Se envasaron tres recetas de platos preparados diferentes (legumbres, verduras y carne guisada) en cuatro tipos de recipientes de hojalata de diferentes medidas y formas: una lata cilindrica de 10, 1 cm de diámetro y 5,7 cm de altura (proporción diámetro/altura: 1 ,77); una lata cilindrica de 10,2 cm de diámetro y 1 1 ,9 cm de altura (proporción diámetro/altura: 0,85); una lata cilindrica de 7,5 cm de diámetro y 10,9 cm de altura (proporción diámetro/altura: 0,68); una lata cilindrica de 10, 1 cm de diámetro y 8,8 cm de altura (proporción diámetro/altura: 1 , 14). Three recipes of different prepared dishes (legumes, vegetables and stewed meat) were packaged in four types of tin containers of different sizes and shapes: a cylindrical can measuring 10, 1 cm in diameter and 5.7 cm in height (diameter / height: 1.77); a cylindrical can 10.2 cm in diameter and 1.19 cm high (diameter / height ratio: 0.85); a cylindrical can 7.5 cm in diameter and 10.9 cm high (diameter / height ratio: 0.68); a cylindrical can with a diameter of 10.1 cm and a height of 8.8 cm (diameter / height ratio: 1.14).
Los recipientes se sometieron a procesos de calentamiento en 4 modelos de microondas diferentes (DAEWO Mod. KOC-9Q4T, potencia máxima: 1400kw, Moulinex Mod. FM 421 , potencia máxima 1300 kw; Fersay Mod. MC 02015, potencia máxima 1200 kw: BLUESKY Mod. BMO 20-8, potencia máxima 1270 kw). The containers were subjected to heating processes in 4 different microwave models (DAEWO Mod. KOC-9Q4T, maximum power: 1400kw, Moulinex Mod. FM 421, maximum power 1300 kw; Fersay Mod. MC 02015, maximum power 1200 kw: BLUESKY Mod. BMO 20-8, maximum power 1270 kw).
Todos los envases se sometieron a una radiación de microondas durante 4 minutos y 1 .000 W, colocando los recipientes en el centro del equipo, eliminando previamente la tapa metálica para permitir la correcta entrada de ondas. All containers were subjected to microwave radiation for 4 minutes and 1,000 W, placing the containers in the center of the equipment, previously removing the metal cover to allow the correct entry of waves.
El resultado de éstos ensayos fue un calentamiento desigual cuanto menor era la proporción diámetro/altura. Así, cuanto menor es el diámetro del envase, mayor es la dificultad de calentamiento en el centro del producto, siendo entonces necesario un mayor tiempo de exposición, lo cual provoca un sobrecalentamiento del alimento en zonas más externas del envase. The result of these tests was uneven heating the smaller the diameter / height ratio was. Thus, the smaller the diameter of the container, the greater the difficulty of heating in the center of the product, thus requiring a longer exposure time, which causes the food to overheat in the outermost areas of the container.
Finalmente, se realizaron estudios de migración del barniz de recubrimiento interior del envase de la invención como medida de control de garantía de seguridad alimentaria. Los análisis se llevaron a cabo por triplicado según la norma UNE-EN 1 186. Los resultados de estos análisis se muestran a continuación: Finally, migration studies of the inner coating varnish of the container of the invention were carried out as a control measure to guarantee food safety. The analyzes were carried out in triplicate according to the UNE-EN 1 186 standard. The results of these analyzes are shown below:
Tal como se deduce de los datos anteriores, el envase de la invención cumple con el límite de migración global establecido en el Reglamento (UE) N° 10/2011 de la Comisión de 14 de enero de 2011 , sobre materiales y objetos plásticos destinados a entrar en contacto con alimentos. As can be deduced from the above data, the packaging of the invention complies with the global migration limit established in Regulation (EU) No. 10/2011 of the Commission of January 14, 2011, on plastic materials and objects intended for come into contact with food.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2019/070057 WO2020161363A1 (en) | 2019-02-04 | 2019-02-04 | Container for packaging food products that is suitable for microwave ovens and use of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2019/070057 WO2020161363A1 (en) | 2019-02-04 | 2019-02-04 | Container for packaging food products that is suitable for microwave ovens and use of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020161363A1 true WO2020161363A1 (en) | 2020-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2019/070057 Ceased WO2020161363A1 (en) | 2019-02-04 | 2019-02-04 | Container for packaging food products that is suitable for microwave ovens and use of same |
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| Country | Link |
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| WO (1) | WO2020161363A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988003368A1 (en) * | 1986-10-23 | 1988-05-19 | The Pillsbury Company | Food product and method of manufacture |
| US4875597A (en) * | 1988-12-02 | 1989-10-24 | Weirton Steel Corporation | Convenience packaging |
| WO1993022219A1 (en) * | 1992-04-24 | 1993-11-11 | J. Gadsden Proprietary Ltd. | Microwave oven heatable food package |
| US20050199619A1 (en) * | 2004-03-09 | 2005-09-15 | Michael Richardson | Microwavable metallic container |
| WO2009154588A2 (en) * | 2008-01-14 | 2009-12-23 | General Mills, Inc. | Microwave batter product |
| WO2014059290A1 (en) * | 2012-10-12 | 2014-04-17 | General Mills, Inc. | Microwavable food packaging, and related products and methods |
-
2019
- 2019-02-04 WO PCT/ES2019/070057 patent/WO2020161363A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988003368A1 (en) * | 1986-10-23 | 1988-05-19 | The Pillsbury Company | Food product and method of manufacture |
| US4875597A (en) * | 1988-12-02 | 1989-10-24 | Weirton Steel Corporation | Convenience packaging |
| WO1993022219A1 (en) * | 1992-04-24 | 1993-11-11 | J. Gadsden Proprietary Ltd. | Microwave oven heatable food package |
| US20050199619A1 (en) * | 2004-03-09 | 2005-09-15 | Michael Richardson | Microwavable metallic container |
| WO2009154588A2 (en) * | 2008-01-14 | 2009-12-23 | General Mills, Inc. | Microwave batter product |
| WO2014059290A1 (en) * | 2012-10-12 | 2014-04-17 | General Mills, Inc. | Microwavable food packaging, and related products and methods |
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