WO2015086463A1 - Polymermischung für barrierefolie - Google Patents
Polymermischung für barrierefolie Download PDFInfo
- Publication number
- WO2015086463A1 WO2015086463A1 PCT/EP2014/076760 EP2014076760W WO2015086463A1 WO 2015086463 A1 WO2015086463 A1 WO 2015086463A1 EP 2014076760 W EP2014076760 W EP 2014076760W WO 2015086463 A1 WO2015086463 A1 WO 2015086463A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acid
- aliphatic
- components
- polyester
- weight
- Prior art date
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- 229940009533 alpha-ketoglutaric acid Drugs 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000012164 animal wax Substances 0.000 description 1
- 235000003704 aspartic acid Nutrition 0.000 description 1
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 1
- VEZXCJBBBCKRPI-UHFFFAOYSA-N beta-propiolactone Chemical compound O=C1CCO1 VEZXCJBBBCKRPI-UHFFFAOYSA-N 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BMRWNKZVCUKKSR-UHFFFAOYSA-N butane-1,2-diol Chemical compound CCC(O)CO BMRWNKZVCUKKSR-UHFFFAOYSA-N 0.000 description 1
- 229930188620 butyrolactone Natural products 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- AIXMJTYHQHQJLU-UHFFFAOYSA-N chembl210858 Chemical compound O1C(CC(=O)OC)CC(C=2C=CC(O)=CC=2)=N1 AIXMJTYHQHQJLU-UHFFFAOYSA-N 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical class CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 229940093476 ethylene glycol Drugs 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 239000012182 japan wax Substances 0.000 description 1
- 229940119170 jojoba wax Drugs 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229940039717 lanolin Drugs 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- TWHMVKPVFOOAMY-UHFFFAOYSA-N octanedioic acid Chemical compound OC(=O)CCCCCCC(O)=O.OC(=O)CCCCCCC(O)=O TWHMVKPVFOOAMY-UHFFFAOYSA-N 0.000 description 1
- 239000012168 ouricury wax Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 150000002918 oxazolines Chemical class 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 150000002942 palmitic acid derivatives Chemical class 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920002791 poly-4-hydroxybutyrate Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920006146 polyetheresteramide block copolymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229940068965 polysorbates Drugs 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229960000380 propiolactone Drugs 0.000 description 1
- 229960004063 propylene glycol Drugs 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000012176 shellac wax Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000012177 spermaceti Substances 0.000 description 1
- 229940084106 spermaceti Drugs 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004628 starch-based polymer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 150000003503 terephthalic acid derivatives Chemical class 0.000 description 1
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 1
- 229960002622 triacetin Drugs 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- YFHICDDUDORKJB-UHFFFAOYSA-N trimethylene carbonate Chemical compound O=C1OCCCO1 YFHICDDUDORKJB-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- 239000012178 vegetable wax Substances 0.000 description 1
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
- B32B27/06—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
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
-
- 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
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2307/716—Degradable
- B32B2307/7163—Biodegradable
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
Definitions
- the present invention relates to a biodegradable polyester mixture
- a biodegradable polyester mixture comprising: i. 55 to 90 wt .-%, based on the components i and ii, a polyglycolic acid (PGA) and i. 10 to 45% by weight, based on the components i and ii, of at least one biodegradable polyester formed from aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic diols.
- PGA polyglycolic acid
- the invention relates to single-layer or multilayer films containing these polymer mixtures and the use of the films for packaging foodstuffs.
- the polymer mixtures according to the invention comprising: i. 55 to 90 wt .-%, based on the components i and ii, of a polyglycolic acid (PGA) and i. 10 to 45% by weight, based on the components i and ii, of a biodegradable polyester formed from aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic diols
- these can be process-processed into films having very good barrier properties, in particular a high water vapor and oxygen barrier.
- these films have improved mechanical properties.
- Polyglycolic acid is understood as meaning homopolymer of glycolide or glycolic acid or copolyesters which, in addition to glycolide or glycolic acid, contain up to 30% comonomer, such as lactic acid, lactide, ethylene oxalate or ⁇ -caprolactone. Likewise, these include the same polyesters and copolyesters, regardless of whether the monomers are used as lactones or as aliphatic hydroxycarboxylic acids. Next polyglycolic branched and linear polyesters are understood, with linear are preferred. In particular, polyglycolic acid products are to be understood as Kuredux® (Kureha). Exemplary are the copolymers: ethylene oxalate, lactide, lactic acid, ⁇ -propiolactone, ⁇ -
- the hydroxycarboxylic acids or their ester-forming derivatives may be used singly or as a mixture of two or more thereof.
- the polyglycolic acids generally have a number average molecular weight (Mn) in the range of 5000 to 500,000, in particular in the range of 10,000 to 250,000 g / mol, preferably in the range of 15,000 to 100,000 g / mol, a weight average molecular weight (Mw) of 30,000 to 1000000, preferably 60000 to 500000 g / mol and a Mw / Mn ratio of 1 to 6, preferably 1 to 4 on.
- Mn number average molecular weight
- Mw weight average molecular weight
- the melting point is in the range of 200 to 250, preferably in the range of 210 to 240 ° C.
- MVR melt volume rate
- EN ISO 1133 240 ° C, 2.16 kg weight
- biodegradable polyesters based on aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds are suitable as component ii.
- the latter are also referred to as partially aromatic polyesters.
- Common to these polyesters is that they are biodegradable according to DIN EN 13432. Of course, mixtures of several such polyesters are suitable.
- polyester derivatives are also to be understood which contain up to 10 mol% of functions other than ester functions, such as polyether esters, polyester amides or polyetheresteramides and polyester urethanes.
- Suitable partially aromatic polyesters include linear non-chain extended polyesters (WO 92/09654). Preferred are chain-extended and / or branched partially aromatic polyesters. The latter are known from the documents cited at the outset, WO 96/15173 to 15176, 21689 to 21692, 25446, 25448 or WO 98/12242, to which reference is expressly made. Mixtures of different partially aromatic polyesters are also possible.
- partially aromatic polyesters are products such as ecoflex® (BASF SE) and Eastar® Bio, Origo-Bi® (Novamont).
- Preferred aliphatic and particularly preferred partially aromatic polyesters include polyesters containing as essential components:
- A2) 0 to 70 mol%, preferably 30 to 70 and particularly preferably 40 to 60 mol%, based on components A1) to A2), of an aromatic dicarboxylic acid or mixtures thereof, preferably as follows: terephthalic acid,
- C1 a compound having at least three groups capable of ester formation, preferably as stated below: trimethylolpropane, pentaerythritol and in particular glycerol,
- aliphatic acids and the corresponding derivatives A1 are generally those having 2 to 18 carbon atoms, preferably 4 to 10 carbon atoms, into consideration. They can be both linear and branched. In principle, however, it is also possible to use dicarboxylic acids having a larger number of carbon atoms, for example having up to 30 carbon atoms.
- Examples which may be mentioned are: oxalic acid, malonic acid, succinic acid, glutaric acid, 2-methylglutaric acid, 3-methylglutaric acid, ⁇ -ketoglutaric acid, adipic acid, pimelic acid, azelaic acid, sebacic acid, brassylic acid, fumaric acid, 2,2-dimethylglutaric acid, suberic acid (suberic acid), diglycolic acid, Oxalacetic acid, glutamic acid, aspartic acid, itaconic acid and Maleic acid.
- the dicarboxylic acids or their ester-forming derivatives may be used singly or as a mixture of two or more thereof.
- Succinic acid, adipic acid, azelaic acid, sebacic acid, brassylic acid or their respective ester-forming derivatives or mixtures thereof are preferably used.
- Succinic acid, adipic acid or sebacic acid or their respective ester-forming derivatives or mixtures thereof are particularly preferably used.
- Succinic acid, azelaic acid, sebacic acid and brassylic acid also have the advantage that they are accessible from renewable raw materials.
- polyesters polybutylene dipatherephthalate (PBAT), polybutylene sebacate terephthalate (PBSeT) or polybutylene succinate terephthalate (PBST) and very particularly preferably polybutylene adipate terephthalate (PBAT) and polybutylene sebacate terephthalate (PBSeT).
- PBAT polybutylene dipatherephthalate
- PBSeT polybutylene sebacate terephthalate
- PBST polybutylene succinate terephthalate
- PBAT polybutylene adipate terephthalate
- PBSeT polybutylene sebacate terephthalate
- the aromatic dicarboxylic acids or their ester-forming derivatives A2 may be used singly or as a mixture of two or more thereof. Particular preference is given to using terephthalic acid or its ester-forming derivatives, such as dimethyl terephthalate.
- the diols B are selected from branched or linear alkanediols having 2 to 12 carbon atoms, preferably 4 to 6 carbon atoms, or cycloalkanediols having 5 to 10 carbon atoms.
- alkanediols examples include ethylene glycol, 1, 2-propanediol, 1, 3-propanediol, 1, 2-butanediol, 1, 4-butanediol, 1, 5-pentanediol, 2,4-dimethyl-2-ethylhexane-1, 3 diol, 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-butyl-1,3-propanediol, 2-ethyl-2-isobutyl-1,3-propanediol, 2,2,4-trimethyl- 1, 6-hexanediol, in particular ethylene glycol, 1, 3-propanediol, 1, 4-butanediol and 2,2-dimethyl-1, 3-propanediol (neopentyl glycol). Particularly preferred are 1, 4-butanediol and 1, 3-propanediol. The latter also have the advantage that
- a branching agent C1
- a chain extender C2 or C3
- the branching agent is preferably selected from the group consisting of: a polyfunctional isocyanate, isocyanurate, oxazoline, epoxide, peroxide, carboxylic anhydride, an at least trifunctional alcohol or an at least trifunctional carboxylic acid.
- Suitable chain extenders are, in particular, difunctional isocyanates, isocyanurates, oxazolines, carboxylic anhydride or epoxides.
- Particularly preferred branching agents have three to six functional groups. Examples include: tartaric acid, citric acid, malic acid; Trimethylolpropane, trimethylolethane; pen- taerythrit; Polyether triols and glycerin, trimesic acid, trimellitic acid, trimellitic anhydride, pyromellitic acid and pyromellitic dianhydride. Preference is given to polyols such as trimethylolpropane, pentaerythritol and in particular glycerol.
- Component C can be used to build biodegradable polyesters having a structural viscosity. The biodegradable polyesters are easier to process.
- a diisocyanate is in particular to be understood as meaning linear or branched alkylene diisocyanates or cycloalkylene diisocyanates having 2 to 20 carbon atoms, preferably 3 to 12 carbon atoms, e.g. 1, 6-hexamethylene diisocyanate, isophorone diisocyanate or methylene bis (4-isocyanatocyclo-hexane) understood.
- Particularly preferred aliphatic diisocyanates are isophorone diisocyanate and in particular 1,6-hexamethylene diisocyanate.
- Polyfunctional epoxides are understood as meaning, in particular, an epoxide-group-containing copolymer based on styrene, acrylates and / or methacrylates.
- the epoxy groups bearing units are preferably glycidyl (meth) acrylates.
- Copolymers having a glycidyl methacrylate content of greater than 20, particularly preferably greater than 30 and especially preferably greater than 50% by weight, of the copolymer have proved to be advantageous.
- the epoxy equivalent weight (EEW) in these polymers is preferably 150 to 3000, and more preferably 200 to 500 g / equivalent.
- the weight average molecular weight Mw of the polymers is preferably from 2,000 to 25,000, in particular from 3,000 to 8,000.
- the number-average molecular weight M n of the polymers is preferably from 400 to 6,000, in particular from 1,000 to 4,000.
- the polydispersity (Q) is generally between 1 .5 and 5 epoxy groups-containing copolymers of the above type are sold for example by BASF Resins BV under the trademark Joncryl ® ADR. Is particularly suitable as a chain extender for example Joncryl ® ADR 4368th
- the polyesters generally have a number average molecular weight (Mn) in the range of 5000 to 100,000, in particular in the range of 10,000 to 75,000 g / mol, preferably in the range of 15,000 to 38,000 g / mol, a weight average molecular weight (Mw) of 30,000 to 300,000, preferably 60,000 to 200,000 g / mol and a Mw / Mn ratio of 1 to 6, preferably 2 to 4 on.
- Mn number average molecular weight
- Mw weight average molecular weight
- the viscosity number is between 50 and 450, preferably from 80 to 250 g / ml (measured in o-dichlorobenzene / phenol (weight ratio 50/50)).
- the melting point is in the range of 85 to 150, preferably in the range of 95 to 140 ° C.
- the preferred partially aromatic polyesters are characterized by a molecular weight (Mn) in the range from 1000 to 100,000, in particular in the range from 9,000 to 75,000 g / mol, preferably in the range from 10,000 to 50,000 g / mol and a melting point in the range from 60 to 170, preferably in the range of 80 to 150 ° C.
- Mn molecular weight
- Aliphatic polyesters are understood as meaning polyesters of aliphatic diols and aliphatic dicarboxylic acids such as polybutylene succinate (PBS), polybutylene adipate (PBA), polybutylene senzoate adipate (PBSA), polybutylene succinate sebacate (PBSSe), polybutylene sebacate (PBSe) or corresponding polyesteramides or polyester urethanes.
- PBS polybutylene succinate
- PBA polybutylene adipate
- PBSA polybutylene senzoate adipate
- PBSSe polybutylene succinate sebacate
- PBSe polybutylene sebacate
- the aliphatic polyesters are marketed, for example, by the companies Showa Highpolymers under the name Bionolle and by Mitsubishi under the name GSPIa. Recent developments are in the
- Preferred aliphatic polyesters are polybutylene succinate sebacate (PBSSe) and most preferably polybutylene sebacate (PBSe).
- PBSSe polybutylene succinate sebacate
- PBSe polybutylene sebacate
- the aliphatic polyesters generally have viscosity numbers according to DIN 53728 of 150 to 320 cm 3 / g and preferably 150 to 250 cm 3 / g.
- MVR Melt volume rate
- EN ISO 1133 190 ° C, 2.16 kg weight
- the acid numbers according to DIN EN 12634 are generally from 0.01 to 1.2 mg KOH / g, preferably from 0.01 to 1.0 mg KOH / g and particularly preferably from 0.01 to 0.7 mg KOH / g ,
- the polyesters may also contain mixtures of aliphatic-aromatic polyesters and purely aliphatic polyesters, for example mixtures of PBAT and PBS.
- polyesters of the following composition are particularly suitable as component ii.
- the polymer mixtures according to the invention may contain further additives.
- the polymer mixture according to the invention 0.01 to 3.0 wt .-%, preferably 0.05 to 2.0 wt .-% and particularly preferably 0.1 to 0.5 wt .-%, based on the Components i and ii, added to a natural wax.
- the water vapor barrier of the barrier films can be markedly improved again.
- the barrier effect decreases again.
- Natural waxes are animal and vegetable waxes such as beeswax, carnauba wax, candelilla wax, Japan wax, Esparto grass wax, cork wax, guaruma wax, rice germ oil wax, sugarcane wax, ouricury wax, shellac wax, spermaceti, lanolin (wool wax), crepe fat, Sasol waxes, jojoba wax or montan wax understood that made of brown coal can be obtained and therefore also of plant origin. Preference is given to carnauba wax, candelilla wax, montan wax and, in particular, beeswax.
- a filler selected from the group consisting of calcium carbonate, talc, kaolin, clay, mica or thermoplastic or non-thermoplasticized starch may be added to the polymer mixture.
- a filler selected from the group consisting of calcium carbonate, talc, kaolin, clay, mica or thermoplastic or non-thermoplasticized starch.
- the particularly preferred inorganic fillers calcium carbonate, talc, kaolin, clay, mica, the water vapor barrier of the polymer blends can be further improved.
- fillers in 5 to 35% by weight, based on the total weight of the polymer mixture can be added to the polyester mixtures.
- Calcium carbonate can be used, for example, in 5 to 25 wt .-%, preferably 10 to 20 wt .-%, based on the total weight of the polymer mixture.
- the calcium carbonate of the company Omya has proven to be suitable.
- the calcium carbonate generally has an average particle size of 0.5 to 10 micrometers, preferably 1 to 5, more preferably 1 to 2.5 micrometers.
- Talc may for example be used in 3 to 15 wt .-%, preferably 5 to 10 wt .-%, based on the total weight of the polymer mixture.
- the talc from Mondo Minerals has proved suitable.
- the talc usually has an average particle size of 0.5-10, preferably 1-8, more preferably 1-3 microns.
- thermoplasticized or non-thermoplasticized starch but also calcium carbonate and talc
- the tear resistance of the films can be further improved.
- Starch is also understood as amylose; thermoplasticized means plasticized with plasticizers such as glycerol, sorbitol or water (see EP-A 539 541, EP-A 575 349, EP-A 652 910) or surface-modified (see EP-A 937120, EP-A 947559, EP-A 965615).
- Polymer blends according to the invention which contain from 10 to 35% by weight, based on the total weight of the polymer blend, of thermoplastic or non-thermoplastic starch have both a good degradability in the soil and good mechanical properties, in particular high tear propagation resistance. These starch-containing mixtures are therefore an interesting alternative to the abovementioned filler-containing (calcium- and / or talc-containing), if appropriate also in combination with the filler-containing polymer mixtures.
- the polyester mixture may therefore contain other ingredients.
- the polyester mixture including all other ingredients is referred to below as the polymer mixture.
- the polyester film according to the invention may contain further additives known to the person skilled in the art.
- plastics technology such as stabilizers; nucleating agents; Lubricants and release agents such as stearates (especially calcium stearate); Plasticizers such as citric acid esters (especially acetyl) tributyl citrate), glyceric acid esters such as triacetylglycerol or ethylene glycol derivatives, surfactants such as polysorbates, palmitates or laurates; Waxes such as erucic acid amide, stearic acid amide or behenamide, beeswax or beeswax esters; Antistatic, UV absorber; UV stabilizers; Antifog agents or dyes.
- plastics technology such as stabilizers; nucleating agents; Lubricants and release agents such as stearates (especially calcium stearate); Plasticizers such as citric acid esters (especially acetyl) tributyl citrate),
- the additives are usually employed in concentrations of from 0 to 2% by weight, in particular from 0.1 to 2% by weight, based on the polyester film of the invention.
- Plasticizers may be contained in 0.1 to 10 wt .-% in the polyester film according to the invention.
- Monolayer films with a thickness of between 5 and 100 ⁇ m show with the polyester mixture according to the invention water vapor permeabilities measured according to ASTM-F1249 (from August 1, 201 1, 23 ° C., 85% rh) of 1, 0 to 30 g 100 ⁇ / ⁇ 2 ⁇ and preferably 2.0 to 10 g 100 ⁇ / ⁇ 2 ⁇ .
- the monolayer films may contain, in addition to the polyester mixtures according to the invention, further polymers selected from the group consisting of: polylactic acid (PLA), polycaprolactone (PCL) and polyhydroxyalkanoate.
- PVA polylactic acid
- PCL polycaprolactone
- polyhydroxyalkanoate polyhydroxyalkanoate
- the middle layer is a barrier film and contains a polymer mixture according to any one of claims 1 to 4.
- the structure of the multilayer film can be both symmetrical and asymmetrical, but the barrier film is not to be understood as the outermost layer.
- the layer thicknesses of the individual components are generally between 0.01 and 100 ⁇ m, but preferably between 0.1 and 50 ⁇ m.
- the number of repeating layers is unlimited.
- Particularly preferred is a biodegradable multilayer film comprising the layer sequence (A) (B) or (B) (A) (B), wherein the layers A and B have the following composition:
- Layer A contains a polymer blend of the composition
- ai 55 to 90 wt .-%, based on the total weight of the components ai and aii, a polyglycolic acid (PGA) and
- aii from 10% to 45% by weight, based on the total weight of components ai and aii, of at least one biodegradable polyester formed from aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic diols;
- Layer B contains:
- bii from 30 to 100% by weight, preferably from 5 to 50% by weight, based on the total weight of components bi and bii, of at least one biodegradable polymer lyesters formed from aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic diols.
- the multilayer films can also be selected in further layers of polymers selected from the group consisting of: polylactic acid
- PLA polycaprolactone
- PCL polycaprolactone
- PLA polyhydroxyalkanoate
- thermoplasticized and non-thermoplasticized starch or polyester prepared from aliphatic and aliphatic or aromatic dicarboxylic acids and an aliphatic dihydroxy compound.
- melt volume rate (MVR) according to EN ISO 1 133 (190 ° C, 2.16 kg weight) of 0.5 to 30, especially 2 to 40 cm 3 / 10min
- Preferred polylactic acids are, for example, Ingeo® 8052D, 6201D, 6202D, 6251D, 3051D and in particular Ingeo® 4020D, 4032D or 4043D (polylactic acid from NatureWorks).
- the properties of the polyester film (puncture resistance and tear propagation resistance) produced from the polymer mixture can be significantly improved again. It is also possible to use mixtures of readily flowing and more viscous PLA.
- Polyhydroxyalkanoates are understood as meaning primarily poly-4-hydroxybutyrates and poly-3-hydroxybutyrates and copolyesters of the abovementioned polyhydroxybutyrates with 3-hydroxyvalerate, 3-hydroxyhexanoate and / or 3-hydroxyoctanoate.
- Poly-3-hydroxybutyrates are sold, for example, by PHB Industrial under the brand name Biocycle® and by Tianan under the name Enmat®.
- Poly-3-hydroxybutyrate-co-4-hydroxybutyrates are known in particular from Metabolix. They are sold under the trade name Mirel®.
- Poly-3-hydroxybutyrate-co-3-hydroxyhexanoates are known from the company P & G or Kaneka. Poly-3-hydroxybutyrate-co-3-hydroxyhexanoates generally have one
- 3-Hydroxyhexanoatanteil of 1 to 20 and preferably from 3 to 15 mol% based on the polyhydroxyalkanoate.
- the polyhydroxyalkanoates generally have a molecular weight Mw of from 100,000 to 1,000,000, and preferably from 300,000 to 600,000.
- the polypropylene carbonate can be prepared analogously, for example, WO 2003/029325, WO 2006/061237 or WO 2007 2007/127039.
- the polyester used may be the same polyester as the previously described aliphatic or aliphatic-aromatic polyester aii, but it is also possible to use different polyesters ai and bii.
- the polymer mixtures in particular the polylactic acid-containing mixtures 0 to 1 wt .-%, preferably 0.01 to 0.8 wt .-%, particularly preferably 0.05 to 0.5 wt .-%, based on the total weight of the components i to ii, an epoxy group-containing copolymer based on styrene, acrylic acid esters and / or methacrylic acid esters are added.
- the epoxy groups bearing units are preferably glycidyl (meth) acrylates.
- the Joncryl® ADR 4368 described above is particularly suitable.
- the monolayer or multilayer films of the invention can be produced by means of the customary preparation processes, such as laminating or extrusion processes, as described, for example, in J. Nentwig “Kunststoff-Folien", 2nd edition, Hanser Verlag Kunststoff (2006), pages 39 to 63.
- production by means of coextrusion has proven particularly suitable, as described, for example, in J. Nentwig “Kunststoff-Folien", 2nd edition, Hanser Verlag, Kunststoff (2006), Pages 58 to 60 described.
- slides can u. a. used for food packaging to ensure a longer shelf life of these.
- these slides can be used, for example, as outer packaging or as cover film.
- the water vapor barrier was measured according to the ASTM F-1249 standard in the updated version of 1 August 201 1.
- ii-1 Polybutylene terephthalate - coadipat, ecoflex ® C1201 from BASF SE.
- Component iii Polybutylene terephthalate - coadipat, ecoflex ® C1201 from BASF SE.
- iii-1 Poly-3-hydroxybutyrate-co-hexanoate, Aonilex ® CS ADR 4368 from the company Kaneka..
- Example 1 The compounding was carried out on an extruder at a temperature of 250 ° C. Mixtures of components i-1 and ii-2 are prepared. To ensure a good mixing of the components was mixed at a speed of 80 revolutions / minute for three minutes. After this time, the melt was drained and the strand processed into smaller pieces.
- Example 1c 80% by weight of component i-1 and 20% by weight of component ii-1 were used.
- Example 1 As described in Example 1, 40% by weight of component i-1 and 60% by weight of component ii-1 were used.
- Example 1 100 wt .-% of component ii-1 was used.
- the compounding was carried out on an extruder at a temperature of 170 ° C. Mixtures of components iii-1 and ii-2 are prepared. To ensure a good mixing of the components was mixed at a speed of 80 revolutions / minute for three minutes. After this time, the melt was drained and the strand processed into smaller pieces.
- Comparative Example 2a Here, as described in Example 1, 100% by weight of component iii-1 was used.
- Example 1 80% by weight of component iii-1 and 20% by weight of component ii-1 were used.
- Example 1 100 wt .-% of component ii-1 was used.
- Polyester mixtures from Examples 1 and 2 were pressed into pressed films (100 ⁇ m) on a heating press Hy 1086 from IWK.
- Compounds with component i-1 were processed at a temperature of 265 ° C or at 180 ° C for component iii-1.
- the composition for pressing was used as follows. A steel plate, a Teflon foil, a steel frame and in this the plastic, a Teflon foil and finally a steel plate came between the press jaws from bottom to top. The granules were melted for 10 minutes, then incubated at 50 bar for 1 minute, at 100 bar for 1 minute and at 200 bar for 2 minutes. It was cooled under pressure and the film was separated from the mold.
- the water vapor transmission was measured on a Permocon 3/33 from Mocon according to ASTM F-1249 at 23 ° C against a gradient of 85% rh.
- Material thicknesses for calculating the permeability of the specimens were determined according to DI N 53370 by mechanical scanning. The permeability was given in g 100 ⁇ ⁇ / ⁇ ⁇ 2 ⁇ . To one To achieve the best possible comparability with other materials, the measured value was based on a layer thickness of 100 ⁇ m.
- the permeability of oxygen was also measured at 23 ° C but 0% rh (O2 gradient 1 bar). The permeability of oxygen is determined with the unit cm 3 100 ⁇ ⁇ / ⁇ ⁇ 2 ⁇ bar.
- Component iii-1 (wt .-%) 100 80 60 50 40 20 0
- Component ii-1 (% by weight) 0 20 40 50 60 80 100
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- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Laminated Bodies (AREA)
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Abstract
Description
Claims
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CN201480066428.4A CN105793040A (zh) | 2013-12-10 | 2014-12-05 | 用于阻隔膜的聚合物混合物 |
JP2016538504A JP2017505831A (ja) | 2013-12-10 | 2014-12-05 | バリアフィルム用ポリマー混合物 |
EP14816149.0A EP3079907B1 (de) | 2013-12-10 | 2014-12-05 | Polymermischung für barrierefolie |
US15/102,696 US20160311203A1 (en) | 2013-12-10 | 2014-12-05 | Polymer mixture for barrier film |
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US (1) | US20160311203A1 (de) |
EP (1) | EP3079907B1 (de) |
JP (1) | JP2017505831A (de) |
CN (1) | CN105793040A (de) |
WO (1) | WO2015086463A1 (de) |
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WO2021176067A1 (en) * | 2020-03-06 | 2021-09-10 | Total Corbion Pla Bv | Multilayer polylactide based structure and articles made therefrom |
WO2024068864A1 (en) * | 2022-09-28 | 2024-04-04 | Basf Se | Biodegradable multilayer composite |
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CN110753720B (zh) * | 2017-06-19 | 2022-12-30 | 巴斯夫欧洲公司 | 可生物降解的三层薄膜 |
EP3778233B1 (de) * | 2018-03-30 | 2024-10-02 | Mitsubishi Chemical Corporation | Biologisch abbaubares laminat |
CN109397810B (zh) * | 2018-11-01 | 2020-10-02 | 厦门艾美森新材料科技股份有限公司 | 一种性能可调的全生物降解薄膜及其制备方法 |
CN110016216B (zh) * | 2019-04-28 | 2021-08-27 | 睿泊(中国)环保科技有限公司 | 一种可全降解的聚乙醇酸复合包装材料及其制备方法 |
IT202000032663A1 (it) * | 2020-12-29 | 2022-06-29 | Novamont Spa | Film biodegradabile multistrato ad alta disintegrazione |
CN115772317A (zh) * | 2021-09-08 | 2023-03-10 | 中国石油化工股份有限公司 | 一种聚乙醇酸树脂共混物及其制备方法和应用 |
CN113956636A (zh) * | 2021-10-28 | 2022-01-21 | 北京工商大学 | 生物降解复合膜及其制备方法和应用 |
JP7474537B1 (ja) | 2023-08-23 | 2024-04-25 | 株式会社Tbm | 生分解性積層体及び成形体 |
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Also Published As
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CN105793040A (zh) | 2016-07-20 |
EP3079907B1 (de) | 2018-03-07 |
JP2017505831A (ja) | 2017-02-23 |
EP3079907A1 (de) | 2016-10-19 |
US20160311203A1 (en) | 2016-10-27 |
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