WO2004012998A2 - Composition pour l'emballage alimentaire a base de resine vinyle aromatique contenant une charge minerale plaquettaire dispersee sous la forme de nanoparticules. - Google Patents
Composition pour l'emballage alimentaire a base de resine vinyle aromatique contenant une charge minerale plaquettaire dispersee sous la forme de nanoparticules. Download PDFInfo
- Publication number
- WO2004012998A2 WO2004012998A2 PCT/FR2003/002294 FR0302294W WO2004012998A2 WO 2004012998 A2 WO2004012998 A2 WO 2004012998A2 FR 0302294 W FR0302294 W FR 0302294W WO 2004012998 A2 WO2004012998 A2 WO 2004012998A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- use according
- mineral
- composition
- nanoparticles
- packaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- 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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
-
- 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
- C08K3/32—Phosphorus-containing compounds
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Definitions
- the present invention relates to the field of styrenic resins, particularly to the field of styrenic resins intended for food packaging. It describes in particular a composition based on styrenic resin containing a platelet mineral filler dispersed in the form of nanoparticles.
- the compositions of the invention can be used in the field of food packaging, in particular for preparing containers intended to contain liquid foods, cooked meals of meat and similar foods.
- Polystyrene blends are used commercially in many food applications.
- thermoplastics are bulk processes, that is, the polymer is formed in its monomer. Whatever the mode of recovery of the polymer, it is then difficult to obtain it free of monomers. Furthermore, in the mass polymerization process of styrene in particular, due to Diels Adler reactions which are unavoidable under the usual temperature conditions, the formation of dimers and / or trimers of styrene appears.
- the problem that the invention seeks to solve is therefore to develop a container for food packaging minimizing the risk of migration of small molecules from the polymer matrix to food.
- the Applicant has found that the use of platelet mineral fillers dispersed in the polymer matrix of the food container significantly slows down the migration of the monomers, dimers and trimers towards the food liquids.
- the solution found by the plaintiff is sufficient. It can be applied alone or in combination with more traditional solutions such as that mentioned above.
- the first object of the invention is therefore the use for preparing a container intended for packaging, in particular food packaging of a thermoplastic composition based on styrenic resin containing a platelet mineral filler dispersed in the form of nanoparticles.
- the thermoplastic composition comprises: from 85 to 99.9% by weight of the total weight of the composition of at least one styrenic resin A, - from 0.1 to 15% by weight of the total weight of the composition d '' a platelet mineral filler dispersed in the form of nanoparticles.
- Styrenic resin A is at least one polymer chosen from crystal polystyrene, impact-reinforced polystyrene and styrene copolymers.
- Crystal polystyrene is obtained by the polymerization of styrene, optionally in the presence of small amounts of other monomers such as styrene derivatives.
- the impact-reinforced polystyrene is obtained by the polymerization of a styrene solution containing from 3 to 15% by weight of at least one elastomer and optionally other monomers such as styrene derivatives such as alpha methylstyrene.
- the elastomer can be chosen from the group containing conjugated polydienes such as polybutadiene or polyisoprene, block or graft block copolymers having at least one block based on polydienes and at least one block based on polystyrene.
- conjugated polydienes such as polybutadiene or polyisoprene
- block or graft block copolymers having at least one block based on polydienes and at least one block based on polystyrene.
- the elastomer can be linear or branched with high or low viscosity.
- the elastomer is selected from the group containing polybutadiene and block copolymers having at least one polybutadiene block and at least one polystyrene block.
- the elastomer phase is dispersed in the form of discrete particles with a diameter between 0.1 and 10 ⁇ m.
- the polymerization can be thermal or peroxidic.
- the modes of synthesis are widely known. For information, you can consult the ULLMANN encyclopedia (encyclopedia of industial chemistry) vol A21, page 615 et seq.
- A is preferably an impact-reinforced polystyrene obtained by the bulk polymerization of styrene in the presence of 3 to 15% by weight of polybutadiene.
- the platelet charge is introduced either to the synthesis of the aromatic vinyl polymer by dispersing the charge in the monomer to be polymerized as described in polymer Bulletin 48, 143-149 (2002), or by mixing by mixing, for example according to the usual mixing techniques, the filler to be dispersed with the polymer A.
- the nanometric shape can be obtained for example by exfoliation from a mineral compound with a lamellar structure. This exfoliation can only be partial. A mixture of elementary particles and stacks of these is then obtained. The stacks may or may not be swollen with polymers. The inflated state is called an intercalated state.
- the mineral particles with lamellar structures can be clays such as montmorillonites or zirconium or titanium derivatives such as phosphonites.
- the preferred filler of the invention is zirconium phosphonite.
- Another object of the invention is also films and containers for food packaging comprising the composition of the invention.
- Such films and containers are prepared by the usual techniques for processing thermoplastic materials such as injection, extrusion or calendering.
- the material to be tested is processed in the form of a 0.1 cm thickness of plate in which are cut strips 100cm 2.
- the strips are then covered with oil and stored for 10 days at 40 ° C.
- the oil is then recovered and analyzed to determine the levels of styrene and ethyl benzene having migrated. Three dosages are carried out per oil sample taken.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Composite Materials (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Wrappers (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003269039A AU2003269039A1 (en) | 2002-07-26 | 2003-07-21 | Composition for food packaging based on vinyl aromatic resin containing a mineral platy filler in the form of nanoparticles |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0209486 | 2002-07-26 | ||
| FR02/09486 | 2002-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2004012998A2 true WO2004012998A2 (fr) | 2004-02-12 |
| WO2004012998A3 WO2004012998A3 (fr) | 2004-04-08 |
Family
ID=31198213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2003/002294 Ceased WO2004012998A2 (fr) | 2002-07-26 | 2003-07-21 | Composition pour l'emballage alimentaire a base de resine vinyle aromatique contenant une charge minerale plaquettaire dispersee sous la forme de nanoparticules. |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2003269039A1 (fr) |
| WO (1) | WO2004012998A2 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2679516A1 (fr) | 2012-06-29 | 2014-01-01 | University College Cork | Emballage alimentaire antimicrobien |
| WO2021170776A1 (fr) | 2020-02-27 | 2021-09-02 | Siamp Cedap | Matériau pour l'emballage alimentaire à base de polystyrène et procédé de préparation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721738A (en) * | 1985-10-07 | 1988-01-26 | Occidental Research Corporation | Polymeric compositions including microwave energy sensitizing additives |
| US6120863A (en) * | 1996-10-18 | 2000-09-19 | Fort James Corporation | Disposable food contact compatible microwaveable containers having at least one micronodular surface and process for their manufacture |
| WO1998056861A1 (fr) * | 1997-06-09 | 1998-12-17 | Herberts Gmbh | Composition de revetement aqueux renfermant un polymere et une charge de paillettes exfoliee |
| JP2000143911A (ja) * | 1998-11-12 | 2000-05-26 | Kanegafuchi Chem Ind Co Ltd | スチレン系樹脂組成物および製造方法 |
| DE10134142C1 (de) * | 2001-07-13 | 2002-05-16 | Rehau Ag & Co | Thermoplastgemisch |
-
2003
- 2003-07-21 AU AU2003269039A patent/AU2003269039A1/en not_active Abandoned
- 2003-07-21 WO PCT/FR2003/002294 patent/WO2004012998A2/fr not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2679516A1 (fr) | 2012-06-29 | 2014-01-01 | University College Cork | Emballage alimentaire antimicrobien |
| WO2014001541A1 (fr) | 2012-06-29 | 2014-01-03 | University College Cork, National University Of Ireland Cork | Emballage alimentaire antimicrobien |
| WO2021170776A1 (fr) | 2020-02-27 | 2021-09-02 | Siamp Cedap | Matériau pour l'emballage alimentaire à base de polystyrène et procédé de préparation |
| US12703783B2 (en) | 2020-02-27 | 2026-08-11 | Siamp Cedap Reunies | Material for a polystyrene-based food packaging and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003269039A1 (en) | 2004-02-23 |
| AU2003269039A8 (en) | 2004-02-23 |
| WO2004012998A3 (fr) | 2004-04-08 |
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