WO2004095935A1 - Nahrungsmittelhülle mit antimikrobieller ausrüstung - Google Patents
Nahrungsmittelhülle mit antimikrobieller ausrüstung Download PDFInfo
- Publication number
- WO2004095935A1 WO2004095935A1 PCT/EP2004/004206 EP2004004206W WO2004095935A1 WO 2004095935 A1 WO2004095935 A1 WO 2004095935A1 EP 2004004206 W EP2004004206 W EP 2004004206W WO 2004095935 A1 WO2004095935 A1 WO 2004095935A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- food casing
- casing according
- polyamide
- layer
- metal salt
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C13/00—Sausage casings
- A22C13/0013—Chemical composition of synthetic sausage casings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- B32B2038/0028—Stretching, elongating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-axially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
- B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2327/00—Polyvinylhalogenides
- B32B2327/06—PVC, i.e. polyvinylchloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2377/00—Polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Definitions
- the invention relates to a polymer-based food casing with an antimicrobial finish and to a method for producing the casing.
- Food casings especially sausage casings, with an antimicrobial finish are already known.
- US Pat. No. 3,864,449 discloses a sausage casing based on regenerated cellulose which contains a fat-soluble, edible anti-mycotic, in particular para-hydroxy-benzoic acid ester.
- the antifungal agent is dissolved in an oil (e.g. castor oil).
- the oil and the constituents dissolved in it are then dispersed in a viscose solution and the dispersion is then extruded through an annular die.
- the finely divided oil droplets are in the tubular casing after the cellulose has been regenerated and can release the active ingredient.
- Polymer-based casings produced by extrusion or co-extrusion from a thermoplastic melt cannot be given an antimicrobial treatment in this way.
- EP-A 0 384 319 discloses a composition which comprises a bacteriocin (in particular nisin or pediocin) obtainable from Pediococcus or Streptococcus species and a chelating agent.
- a bacteriocin in particular nisin or pediocin
- This composition can be applied to cellulose casings as well as to polymer casings (for example those based on polyolefins, polyamides, polyethylene terephthalates, polyvinylidene chloride copolymers or ethylene / vinyl acetate copolymers).
- Such an impregnation is naturally not very sustainable.
- Bacteriocins are also sensitive to heat.
- Sausage casings based on polyamide are often also produced in ready-to-fill ("preconditioned") form because individual types of polyamide can absorb up to about 10% by weight of water To solve this problem, the aqueous dampening solutions were therefore treated with fungicidal and / or bactericidal granules.
- Suitable components approved under food law are in particular potassium sorbate, para-hydroxy-benzoic acid ester (PHB ester) or natamycin.
- thermoplastic polymers which from the beginning, i.e. are not equipped with an anti-microbial treatment only afterwards. They should also be easier to manufacture, since post-treatment with antibacterial substances is no longer necessary.
- the antimicrobial finish should be permanent, i.e. not washable, and their effectiveness does not decrease or only insignificantly even after exposure to heat. Because in the case of sausage casings, the heat can reach up to a temperature of around 95 ° C, and briefly up to around 120 ° C when sterilized. Longer storage of the food casing should not impair the antimicrobial effect.
- the task was solved with the help of metal salts which are added before the extrusion of the polymer melt.
- metal salts which are added before the extrusion of the polymer melt.
- they release metal ions with an antimicrobial effect and thus prevent or hinder the growth of mold, bacteria, yeasts, fungi and other microorganisms.
- the present invention thus relates to a single-layer or multilayer plastic food-based food casing, which is characterized in that the layer or at least one of the layers contains an antimicrobially effective amount of at least one metal salt.
- the metal salt preferably contains silver, copper, zinc ions and / or other metal ions with an antimicrobial, in particular antibacterial, effect.
- the food casing based on plastic is preferably a casing based on polyamide and / or copolyamide (hereinafter referred to as (co) polyamide).
- the (co) polyamide is generally an aliphatic (co) polyamide, such as PA 6
- PA 6 ( ⁇ -caprolactam) polyamide from ⁇ -caprolactam or 6-amino-hexanoic acid
- PA 6 / 6.6 copolyamide from ⁇ -caprolactam, hexamethylene diamine and adipic acid
- PA 6 / 66.9 copolyamide from e-caprolactam, hexamethylene diamine, adipic acid and azelaic acid
- PA 6 / 66.12 copolyamide from e-Caprolactam, hexamethylene diamine, adipic acid and laurolactam
- PA 6.9 polyamide from hexamethylene diamine and azelaic acid
- the aliphatic (co) polyamide can be mixed with partially aromatic (co) polyamides, in particular amorphous partially aromatic (co) polyamides such as PA 6I / 6T (a copolyamide with units of hexamethylenediamine, isophthalic acid and terephthalic acid).
- the proportion of partially aromatic (co) polyamide is preferably not more than 50% by weight, particularly preferably not more than 30% by weight, in each case based on the total weight of all (co) polyamides.
- (Co) polyamide can also be blended with other polymers, in particular olefinic polymers, especially those that also act as adhesion promoters. Examples include ethylene / (meth) acrylic acid copolymers. Other polymers can also get into the shell material through a masterbatch containing a corresponding metal salt. This applies, for example, when a masterbatch based on polyethylene or polyester is incorporated into a polyamide layer.
- the proportion of metal salt (s) in the single-layer shell or in a correspondingly equipped layer of the multi-layer shell is generally approximately
- At least the outer layer preferably contains antimicrobial metal salt (s).
- the casing can contain generally customary additives, such as dyes or color pigments, UV stabilizers or the like. It is generally tubular, preferably also seamless. It can be undrawn or stretched.
- the shell can be stretched in a blow molding process or by biaxial orientation in a so-called double-bubble process. In the latter method, a primary tube is first produced by extrusion or coextrusion, which is cooled, then heated to the stretching temperature and stretched by an internal gas pressure.
- a heat shrinkage suitable for sausage casings can then be set by heat setting. This residual shrinkage is generally no more than 20% in the longitudinal and transverse directions (determined by soaking in water at 90 ° C. for 5 minutes).
- the metal salt may also be contained in the inner layer in the multilayered shell.
- the metal salt is applied to a carrier.
- the carrier can be, for example, an aluminum silicate, especially a natural or synthetic zeolite or a similar absorbent substance.
- the aluminum silicate releases antimicrobial metal ions (for example silver ions) and binds cations of the
- the aluminum silicate particles generally have an average diameter of 1 to 15 ⁇ m, preferably 2 to 10 ⁇ m. They can contain up to about 40% by weight of metal ions. Suitable aluminum silicates containing metal ions are described, for example, in JP-A 02-
- a masterbatch which contains up to about 5 to 40% by weight, preferably 10 to 25% by weight, of at least one metal salt is preferably used in the production of the casing according to the invention
- the masterbatch is mixed with the other constituents of the casing or the relevant layer of the multilayer casing and then extruded or coextruded.
- the further layers in the multilayer embodiment are, in particular, layers based on polyolefins (especially polyethylene, polypropylene, ethylene / propylene copolymers or block copolymers, polybutylene, etc.) Polyesters, polyvinylidene chloride (PVDC), poly (ethylene-co-vinyl acetate) and / or poly (ethylene-co-methyl methacrylate).
- Adhesive layers which contain or consist of polyolefins modified with functional groups, for example, can also be arranged between the individual layers, preferably relatively thin (approximately 2 to 8 ⁇ m). Including such adhesive layers, the casing according to the invention should not comprise more than 5 layers for practical reasons. In order to reduce the number of extruders required, a symmetrical structure also makes sense. For example, the composition of the inner layer is then identical to that of the outer layer.
- the single-layer or multilayer, tubular casing according to the invention generally has a wall thickness of 15 to 150 ⁇ m, preferably 20 to 130 ⁇ m, particularly preferably 35 to 90 ⁇ m.
- the diameter is advantageously about 20 to 200 mm, preferably 30 to 150 mm.
- the casing according to the invention has the essential advantage that it is permanently antimicrobial.
- antimicrobial effect is understood here to mean the activity against bacteria, yeast, mold, algae, fungi and other microorganisms. Above all, the antibacterial is important
- the antimicrobial component is not released from the casing by water, fat or other food components.
- the antibacterial effect is practically not affected by heating, UV radiation or the effects of chemicals.
- the antibacterial finish does not affect the taste, smell or aroma of a food contained in the casing. Subsequent antibacterial treatment, as is often described in the prior art, is no longer required.
- the casing according to the invention is thus largely protected against attack by microorganisms, even if it is already pre-moistened ready for filling.
- polyamide 6 80 pbw of polyamide 6 (the relative viscosity of a 1% strength solution of the polyamide in 96% strength sulfuric acid at a temperature of 20 ° C. was 4), 10 pbw of amorphous polyamide 6I / 6T (®Selar PA 3426 from DuPont de Nemours Inc .; Melt index: 90 g in 10 min at 275 ° C and a load of 10 kg) and 10 pbw of ethylene / methacrylic acid copolymer ( ⁇ Nucrel 0903 HC from DuPont de Nemours Inc .; Melt index: 2.5 g in 10 min at 190 ° C and 2.16 kg load)
- the melt was extruded through a ring die into a tube with a diameter of 18 mm.
- This primary tube was rapidly cooled after the extrusion, then heated to the temperature required for stretching, biaxially stretched by compressed air acting from the inside and under the action of a pair of squeeze rollers which pull in the longitudinal direction.
- the area stretch ratio was 9.6.
- the stretched casing was then heat set while the area stretch ratio remained practically unchanged.
- the finished casing had a diameter of 66 mm.
- Example 2 (inventive single-layer casing): A mixture of
- Example 2 was plasticized as described in Example 1 and processed into a biaxially stretched and heat-set sausage casing.
- Example 3 multilayer casing according to the invention:
- Mixture B 70 pbw of low-density polyethylene (LDPE, Lupolen 1441 from BASF AG with an MFI of 0.2 g in 10 min at 190 ° C. and 2.16 kg load) and
- LDPE low-density polyethylene
- LLDPE functional group modified low density linear polyethylene
- the mixtures were plasticized in their own single-screw extruders at 240 ° C, the resulting homogeneous melts were brought together in a 3-layer ring die and coextruded into a tube of 18 mm diameter.
- the tube was then made into a biaxially stretched and heat set food casing as described.
- the area stretch ratio was 9.6.
- the finished casing had a diameter of 66 mm.
- the individual layers contributed to the total wall thickness of 55 ⁇ m as follows:
- Example 2 was plasticized in a single-screw extruder at 280 ° C. to form a homogeneous melt and, as described in Example 1, extruded into a blow tube with the aid of an annular die.
- the bacteriostatic activity S was determined using the method described in JIS Z 2801 using Staphylococcus aureus ATCC 6538 as
- the bacteriostatic activity S was evaluated as follows: ⁇ 0.0 microbial growth, insufficient antibacterial effect 0.0 to ⁇ 1.0, no significant bacterial reduction, insufficient antibacterial effect
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/549,830 US20060182851A1 (en) | 2003-04-25 | 2004-04-21 | Food casing provided with an antimicrobial finish |
EP04728537A EP1622459A1 (de) | 2003-04-25 | 2004-04-21 | Nahrungsmittelhülle mit antimikrobieller ausrüstung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10319006.6 | 2003-04-25 | ||
DE10319006A DE10319006A1 (de) | 2003-04-25 | 2003-04-25 | Nahrungsmittelhülle mit antimikrobieller Ausrüstung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004095935A1 true WO2004095935A1 (de) | 2004-11-11 |
Family
ID=33154462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/004206 WO2004095935A1 (de) | 2003-04-25 | 2004-04-21 | Nahrungsmittelhülle mit antimikrobieller ausrüstung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060182851A1 (de) |
EP (1) | EP1622459A1 (de) |
DE (1) | DE10319006A1 (de) |
RU (1) | RU2005136660A (de) |
WO (1) | WO2004095935A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006031965A2 (en) * | 2004-09-13 | 2006-03-23 | E.I. Dupont De Nemours And Company | Controlled release antimicrobial polymer compositions |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005043287A1 (de) * | 2005-09-09 | 2007-03-15 | Kalle Gmbh | Mehrschichtige Wursthülle mit drei nebeneinander liegenden Schichten auf Polyamidbasis |
DE102006047801B4 (de) * | 2006-10-06 | 2008-08-14 | Kuhne Anlagenbau Gmbh | Antimikrobielle Lebensmittelverpackung und Verfahren zur Herstellung dieser Verpackung |
DE102006058635A1 (de) * | 2006-12-13 | 2008-06-19 | Kalle Gmbh | Nahrungsmittelhülle auf Cellulosehydratbasis mit Nanopartikeln |
EP2145758B2 (de) * | 2008-07-14 | 2017-06-07 | 3A Technology & Management AG | Verpackung sowie Packgut-Verpackungseinheit |
US10136656B2 (en) | 2010-10-01 | 2018-11-27 | The Hillshire Brands Company | Systems and methods for providing a food product with additives |
GB0819239D0 (en) * | 2008-10-21 | 2008-11-26 | Centurion Europ Ltd | Article with antibacterial characteristics |
US9380804B2 (en) | 2012-07-12 | 2016-07-05 | The Hillshire Brands Company | Systems and methods for food product extrusion |
US10064273B2 (en) | 2015-10-20 | 2018-08-28 | MR Label Company | Antimicrobial copper sheet overlays and related methods for making and using |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63154746A (ja) * | 1986-12-19 | 1988-06-28 | Kanebo Ltd | 抗菌性フイルム |
US4775585A (en) * | 1983-01-21 | 1988-10-04 | Kanebo Ltd./Kanto Chemical Co. | Polymer article having an antibacterial property containing zeolite particles therein and the processes for producing same |
JPH02238923A (ja) * | 1989-03-13 | 1990-09-21 | Kyoraku Co Ltd | 抗菌性成形品の製造方法 |
EP0405547A2 (de) * | 1989-06-30 | 1991-01-02 | Mitsubishi Petrochemical Co., Ltd. | Antibakterieller laminierter Film zum Spannverpacken |
EP0423604A1 (de) * | 1989-10-20 | 1991-04-24 | Mitsubishi Petrochemical Co., Ltd. | Verfahren zur Herstellung von einem antibakteriellen, geformten Gegenstand aus Polyolefinharz |
DE4001612A1 (de) * | 1990-01-20 | 1991-07-25 | Hoechst Ag | Mehrschichtige verpackungshuelle auf basis von polyamid |
JPH04178433A (ja) * | 1990-11-13 | 1992-06-25 | Ishizuka Glass Co Ltd | 抗菌抗黴性を有する樹脂フイルム |
JPH0957923A (ja) * | 1995-08-29 | 1997-03-04 | Toray Ind Inc | 抗菌性複合延伸ポリエステルフィルム |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4635316A (en) * | 1985-06-26 | 1987-01-13 | Teepak, Inc. | Methods and apparatus for perforating food casing film and casing produced thereby |
US5741533A (en) * | 1995-12-22 | 1998-04-21 | W. R. Grace & Co.-Conn. | Method of cooking a food product and product thereof |
DE19943909A1 (de) * | 1999-09-14 | 2001-03-15 | Wolff Walsrode Ag | Mehrschichtig coextrudierte biaxial gereckte Hochbarriere-Kunststoffhülle mit verminderter Haftung zum Füllgut sowie deren Verwendung als Nahrungsmittelhülle |
-
2003
- 2003-04-25 DE DE10319006A patent/DE10319006A1/de not_active Withdrawn
-
2004
- 2004-04-21 US US10/549,830 patent/US20060182851A1/en not_active Abandoned
- 2004-04-21 EP EP04728537A patent/EP1622459A1/de not_active Withdrawn
- 2004-04-21 RU RU2005136660/13A patent/RU2005136660A/ru not_active Application Discontinuation
- 2004-04-21 WO PCT/EP2004/004206 patent/WO2004095935A1/de active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4775585A (en) * | 1983-01-21 | 1988-10-04 | Kanebo Ltd./Kanto Chemical Co. | Polymer article having an antibacterial property containing zeolite particles therein and the processes for producing same |
JPS63154746A (ja) * | 1986-12-19 | 1988-06-28 | Kanebo Ltd | 抗菌性フイルム |
JPH02238923A (ja) * | 1989-03-13 | 1990-09-21 | Kyoraku Co Ltd | 抗菌性成形品の製造方法 |
EP0405547A2 (de) * | 1989-06-30 | 1991-01-02 | Mitsubishi Petrochemical Co., Ltd. | Antibakterieller laminierter Film zum Spannverpacken |
EP0423604A1 (de) * | 1989-10-20 | 1991-04-24 | Mitsubishi Petrochemical Co., Ltd. | Verfahren zur Herstellung von einem antibakteriellen, geformten Gegenstand aus Polyolefinharz |
DE4001612A1 (de) * | 1990-01-20 | 1991-07-25 | Hoechst Ag | Mehrschichtige verpackungshuelle auf basis von polyamid |
JPH04178433A (ja) * | 1990-11-13 | 1992-06-25 | Ishizuka Glass Co Ltd | 抗菌抗黴性を有する樹脂フイルム |
JPH0957923A (ja) * | 1995-08-29 | 1997-03-04 | Toray Ind Inc | 抗菌性複合延伸ポリエステルフィルム |
Non-Patent Citations (4)
Title |
---|
DATABASE WPI Section Ch Week 198831, Derwent World Patents Index; Class A92, AN 1988-217584, XP002289643 * |
DATABASE WPI Section Ch Week 199044, Derwent World Patents Index; Class A32, AN 1990-331826, XP002289644 * |
DATABASE WPI Section Ch Week 199232, Derwent World Patents Index; Class A18, AN 1992-263077, XP002289645 * |
DATABASE WPI Section Ch Week 199719, Derwent World Patents Index; Class A23, AN 1997-208089, XP002289642 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006031965A2 (en) * | 2004-09-13 | 2006-03-23 | E.I. Dupont De Nemours And Company | Controlled release antimicrobial polymer compositions |
WO2006031965A3 (en) * | 2004-09-13 | 2006-09-14 | Du Pont | Controlled release antimicrobial polymer compositions |
Also Published As
Publication number | Publication date |
---|---|
RU2005136660A (ru) | 2006-03-20 |
US20060182851A1 (en) | 2006-08-17 |
DE10319006A1 (de) | 2004-11-11 |
EP1622459A1 (de) | 2006-02-08 |
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