# US 8,569,407 B2 · Biodegradable material composed of a polymer comprising a porous metal-organic framework > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,569,407 B2 - Document ID: US8569407B2 - Status: Granted - Kind: B2 - Application number: 13/257,787 - Filed: 2010-03-17 - Published: 2012-01-19 - Granted: 2013-10-29 - Earliest claimed: 2009-03-20 - Assignees: BASF SE - Applicants: Emi Leung; Ulrich Müller; Jan Kurt Walter Sandler; Gabriel Skupin; Motonori Yamamoto; Antje Van der Net - Inventors: Emi Leung; Ulrich Müller; Jan Kurt Walter Sandler; Gabriel Skupin; Motonori Yamamoto; Antje Van der Net - Web page: https://patentgrep.com/patent/US8569407B2 ## CPC - B65D 65/466: {Bio- or photodegradable packaging materials} - B01J 20/226: {Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F)} - C08J 5/12: Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives - B65D 81/267: {the absorber being in sheet form} - C08J 2367/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds; (C08J2367/06 takes precedence) - Y02A 40/90: in food processing or handling, e.g. food conservation - Y02W 90/10: Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics - 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 - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE - Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT ## Abstract The present invention relates to a biodegradable material in the form of a foil or a film, where the material comprises a polymer comprising at least one porous metal-organic framework and the at least one porous metal-organic framework comprises at least one at least bidentate organic compound coordinated to at least one metal ion. The invention further relates to food packaging comprising such a material and also its use for the packaging of foods and the use of a porous metal-organic framework for the absorption of ethene in food packaging. ## Claims ### Claim 1 A biodegradable material in the form of a foil or a film, where the material comprises a polymer comprising at least one porous metal-organic framework and the at least one porous metal-organic framework comprises at least one at least bidentate organic compound coordinated to at least one metal ion. ### Claim 2 (depends on 1) The material according to claim 1 which is present in the form of a foil. ### Claim 3 (depends on 2) The material according to claim 2, wherein the foil has a thickness of less than 100 μm. ### Claim 4 (depends on 1) The material according to claim 1, wherein the polymer comprises a polyester based on aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds. ### Claim 5 (depends on 4) The material according to claim 4, wherein the at least one metal ion is comprises an ion selected from the group of metals consisting of Mg, Ca and Al. ### Claim 6 (depends on 1) The material according to claim 1, wherein the at least one at least bidentate organic compound comprises a compound derived from formic acid, acetic acid or an aliphatic dicarboxylic or polycarboxylic acid. ### Claim 7 (depends on 1) The material according to claim 1, wherein the at least one metal-organic framework is present in a proportion of from 0.01% by weight to 10% by weight based on the total weight of the polymer. ### Claim 8 (depends on 1) A food packaging comprising a material according to claim 1. ### Claim 9 (depends on 1) A method of packaging a food comprising using packaging a food in the presence of the material according to claim 1. ### Claim 10 A method for the absorption of ethene in food packaging comprising providing a porous metal-organic framework in food packaging. ### Claim 11 (depends on 1) The material according to claim 1, wherein the polymer comprises a polyester based on aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds; the at least one metal ion comprises an ion selected from the group of metals consisting of Mg, Ca and Al; and the at least one at least bidentate organic compound comprises a compound derived from formic acid, acetic acid or an aliphatic dicarboxylic or polycarboxylic acid. ### Claim 12 (depends on 11) The material according to claim 11, wherein the at least one metal-organic framework is present in a proportion of from 0.01% by weight to 10% by weight based on the total weight of the polymer. ### Claim 13 (depends on 11) A food packaging comprising a material according to claim 11. ### Claim 14 (depends on 12) A food packaging comprising a material according to claim 12. ### Claim 15 (depends on 11) A method of packaging a food comprising packaging a food in the presence of the material according to claim 11. ### Claim 16 (depends on 12) A method of packaging a food comprising packaging a food in the presence of the material according to claim 12. ### Claim 17 (depends on 10) The method of claim 10, wherein the porous metal-organic framework comprises: at least one metal ion selected from the group of metals consisting of Mg, Ca and Al; and at least one at least bidentate organic compound derived from formic acid, acetic acid or an aliphatic dicarboxylic or polycarboxylic acid.