EP4139387A1 - Additivzusammensetzung sowie deren verwendung, kondensationspolymerzusammensetzung, formmasse und hieraus hergestellte formmassen und formteile und deren verwendung - Google Patents
Additivzusammensetzung sowie deren verwendung, kondensationspolymerzusammensetzung, formmasse und hieraus hergestellte formmassen und formteile und deren verwendungInfo
- Publication number
- EP4139387A1 EP4139387A1 EP21719907.4A EP21719907A EP4139387A1 EP 4139387 A1 EP4139387 A1 EP 4139387A1 EP 21719907 A EP21719907 A EP 21719907A EP 4139387 A1 EP4139387 A1 EP 4139387A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- phosphate
- condensation polymer
- composition according
- phosphite
- 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.)
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Classifications
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0033—Additives activating the degradation of the macromolecular compound
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/527—Cyclic esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
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- 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
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- 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
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
Definitions
- the present invention relates to an additive composition with at least one hydroxycarboxylic acid salt and at least one organic phosphorus compound which, when incorporated into a thermoplastic condensation polymer, is able to accelerate its hydrolytic degradation during use.
- the present invention relates to a condensation polymer composition to which an additive composition according to the invention has been added.
- the invention also relates to a method for the hydrolytic degradation of a thermoplastic condensation polymer, uses of the additive composition according to the invention and the thermoplastic condensation polymer composition.
- Condensation polymers such as polyester such as PET and polyamides such as PA-6 are important plastics for packaging and technical applications that are often intended for long-term use.
- polyester such as PET
- polyamides such as PA-6
- PLA polylactide
- PBS polybutylene succinate
- these applications e.g. in the form of foils, tend to have a short-term useful life. Regardless of the useful life, however, it is necessary that condensation polymers do not experience any (pre-) damage during processing, ie during the manufacture of parts or during compounding, in order not to prematurely lose properties such as mechanical properties to suffer.
- additives such as stabilizers and / or antioxidants are often added to the polymers.
- the degradation can be accelerated by special environmental conditions, e.g. by using selected microorganisms (W. Pattanasutichonlakul et al., International Biodeterioration and Biodegradation 2018, 132, 74-83) or enzymes (WO 2005/063037).
- additives to promote photocatalytic degradation such as T1O2 nanoparticles (Y. Luo et al. J. Appl. Pol. Sei. 2018, 46509, 1-8) or silica nanoparticles (P. Georgiopoulus et al. Journal of Biomaterials Applications 2014, 29, 662-674) or additives that promote oxidation such as manganese stearate (CN 103408827).
- PLA blends in combination with more rapidly degradable polymers have been described, e.g. PLA blends with polybutylene succinate (Y. Wang et al. Polym. Bull. 2016, 73, 1067-1083).
- Hydroxycarboxylic acid salts are mentioned in the form of sodium citrate in CN 105838049 as additives to shape-memory polylactic acid composites, but as fillers in a series with other typical fillers such as calcium carbonate or talc and not as stabilizers.
- polylactic acid wood composites contain sodium citrate as a nucleating agent in a list with various additives such as calcium carbonate, but not used as a stabilizer.
- sodium citrate is used as a foam stabilizer in the production of polylactic acids within a list of coupling agents, but not as a polymer stabilizer.
- JP 2006-328222 uses salts of hydroxycarboxylic acids to stabilize polyacetal / polylactic acid blends, but to reduce the splitting off of formaldehyde.
- ester salts of hydroxycarboxylic acids are used as Stabilizers for various polymers mentioned.
- the object of the present invention was therefore to develop an additive composition which, on the one hand, enables processing of the polycondensation polymers with little or no (pre-) damage, ie has a stabilizing effect during thermoplastic processing of the polymer, and on the other hand, if necessary , accelerates or controls hydrolytic degradation in the environment.
- the invention thus relates to an additive composition containing or consisting of a) at least one hydroxycarboxylic acid salt and b) at least one organic phosphorus compound.
- the additive composition according to the invention allows the production of condensation polymer compositions with accelerated hydrolytic degradation in the environment without premature loss of properties during processing.
- the additive composition according to the invention can be incorporated into the condensation polymer composition during the thermal processing of the condensation polymers, in particular by adding, adding or incorporating additives into the thermoplastic condensation polymer.
- thermal processing of the condensation polymers can be, for example, processing in the thermoplastic state, with the condensation polymer generally being melted, preferably by a mixer, kneader or extruder.
- Preferred processing machines are extruders such as single-screw extruders, twin-screw extruders, planetary roller extruders, ring extruders, co-kneaders, which are preferably equipped with vacuum degassing. Processing can take place under air or, if necessary, under inert gas conditions. Here, the addition or incorporation of the additive composition can take place during processing.
- thermoplastic condensation polymers which can be present, for example, as chips, powder, beads or granules, before thermal processing, and then to process the mixture in the thermoplastic state.
- Thermal processing is preferably carried out under aprotic conditions.
- Aprotic conditions are understood to mean that there are no compounds that can easily give off a proton, e.g. acids or water.
- aprotic conditions are characterized in that the thermoplastic condensation polymer has a water content of up to 0.5% by weight, preferably up to 0.05% by weight.
- the additives according to the invention are also preferably in anhydrous form.
- the carboxylic acid salt contains a hydroxyl group, which means that the use according to the invention differs from conventional acid scavengers which have no hydroxyl groups, such as calcium stearate, for example.
- the hydroxyl group interrupts radical breakdown mechanisms through hydrogen transfer.
- a neutral or stable pH value can be maintained and complex formation with oxidation-promoting metal ions can be postulated as a further effect.
- Preferred hydroxycarboxylic acid salts are, for example, selected from the group consisting of alkali metal, alkaline earth metal, aluminum and zinc salts of hydroxycarboxylic acids, in particular hydroxycarboxylic acids selected from the group consisting of alpha-, beta-, gamma-, delta or omega-hydroxycarboxylic acids, preferably linear or branched aliphatic or aromatic hydroxycarboxylic acid compounds with 2 to 34 carbon atoms and their derivatives (e.g.
- cyclic hydroxycarboxylic acid esters such as lactones, or anhydrides from which the hydroxycarboxylic acids can be obtained again, but also hydroxycarboxylic acids with a similar structure), in particular dere hydroxy than acid (glycolic acid), D-, L-, DL-2-hydroxypropanoic acid (D-, L-, DL-lactic acid, 2-hydroxypropionic acid), 3-hydroxypropanoic acid (3-hydroxypropionic acid), 2-Hydroxybutanoic acid (2-hydroxybutyric acid), 3-hydroxybutyric acid (3-hydroxybutanoic acid), 4-hydroxybutanoic acid (4-hydroxybutyric acid), hydroxypentanoic acid (hydroxy va leric acid), hydroxyhexanoic acid (hydroxycaproic acid), hydroxyheptanoic acid (hydroxyenanthic acid), hydroxy octanoic acid (hydroxycaprylic acid), hydroxynonanoic acid (hyd roxy pe largonic acid), hydroxydecan
- Hyd roxyca rbo n- acids are aldonic acids such as aldotetronic acids, aldopentonic acids, aldohexonic acids, in particular gluconic acid, ribonic acid, arabinonic acid, xylonic acid, mannonic acid, galactonic acid, gulonic acid, ketoaldonic acids, uronic acids such as glucuronic acid, mannuronic acid, such as Xyldarucic acid, such as alyldarucic acid , Galactaric acid, gular acid; long-chain and unsaturated hydroxycarboxylic acids such as ricinoleic acid; aromatic hydroxycarboxylic acids such as mandelic acid, vanillin mandelic acid and dibasic or tri-base hydroxycarboxylic acids such as malic acid, citric acid, isocitric acid or tartaric acid.
- aldonic acids such as aldotetronic acids, aldopentonic acids, aldohexonic acids,
- Sodium citrate trisodium citrate
- calcium citrate tri-calcium dicitrate
- sodium malate sodium malate
- calcium malate sodium tartrate and sodium alginate
- salts listed which are free of water of crystallization are very particularly preferred. Salts which are free of water of crystallization are to be described here which lose a maximum of 10% by weight of water of crystallization under the respective processing conditions. This also includes, in particular, salts that can be converted into this state by conventional drying methods.
- the organic phosphorus compound is preferably hydrolyzable and thus contains at least one ester group, preferably two, particularly preferably 3 ester groups.
- the hydrolytic stability of esters of phosphorous acid depends on the structure of the alcohol in question.
- Aromatic polyesters, ie phenol derivatives and sterically hindered structures have a higher hydro- lytic resistance on as aliphatic structures, ie alcohol derivatives.
- the organic phosphorus compound preferably has at least 1, particularly preferably at least 2, very particularly preferably 3 aliphatic ester groups per P atom. Furthermore, in particular linear ester groups, ie with low steric hindrance, are preferred.
- the organic phosphorus compound is selected from the group consisting of phosphites with one, two or 3 linear or branched alkoxy groups or phosphites selected from the group consisting of where R 1 is the same or different on each occurrence and is selected from the group consisting of linear or branched alkyl radicals having 1 to 36 carbon atoms and aryl radicals, and compounds of the formula P (OR 1 ) 3, where R 1 is selected from the group consisting of of linear or branched alkyl radicals with 4 to 32 carbon atoms, in particular trilauryl phosphite, triisodecyl phosphite, tridecyl phosphite, trihexadecyl phosphite, trioctadecyl phosphite, tribehenyl phosphite, triarachidyl phosphite, triceryl phosphite, phosphityl phos
- diphosphite examples include tetraethyl diphosphite or tetrapropyl diphosphite.
- An example of a triphosphite is the P, P'-bis (2-hydroxyethyl) ester of triphosphorous acid.
- Oligophosphites and polyphosphites are described, for example, in WO 2011102861, WO 201420519 or WO 2020123986.
- phosphates, diphosphates, metaphosphates and polyphosphates which are derived from the abovementioned phosphites such as, for example, trilauryl phosphate, triisodecyl phosphate, tridecyl phosphate, trihexadecyl phosphate, trioctadecyl phosphate, tribehenyl phosphate, and also, for example, the following tri-phenyl phosphate, tri-phenyl phosphate, triarachidyl phosphate, and triarachidyl phosphate structures and salts derived therefrom, as well as mixtures of at least two phosphates consisting of the group of monoalkyl phosphates, dialkyl phosphates and trialkyl phosphates: In the case of the aforementioned phosphates, diphosphates, metaphosphates and polyphosphates: In the case of the aforementioned phosphates, diphosphates, metaphosphates and polyphosphate
- organic phosphorus compound is a phosphite and is selected from the group consisting of the following compounds:
- n is from 3 to 100
- a preferred phosphonite which can be used for the purposes of the present invention is the following compound:
- the total of the at least one hydroxycarboxylic acid salt and the total of the at least one organic phosphorus compound are in a weight ratio of 20: 1 to 1:20, preferably 10: 1 to 1:10, in the additive composition - especially preferred 5: 1 to 1: 5.
- the present invention relates to a condensation polymer composition containing or consisting of
- Polyesters from aliphatic or aromatic dicarboxylic acids and diols or from hydroxycarboxylic acids such as polylactic acid (PLA), polybutylene succinate, polybutylene succinate-co-adipate), poly (butylene adipate) (PBA), polyethylene terephthalate (PET), polybutylene terephthalate (PBTerephthalate), polybutylene terephthalate (PBTerephthalate) (Poly (ethylene-2,5-furandicarboxylate)) (PEF), polypropylene terephthalate (PPT), polyethylene naphthylate, poly-1,4-dimethylolcyclohexane terephthalate, polyhydroxybenzoate, polyhydroxynaphthalate, polycaprolactone (PCL), poly-3-hydroxyl butyrate, Poly-4-hydroxybutyrate, poly-3-hydroxyvalerate, poly (hexamethylene succinate), poly (butylene succinate) and copolymers and mixtures
- Polyamides such as PA 6, PA 6.6, PA 6.10, PA 4.6, PA 4.10, PA 6.12, PA 10.10, PA 10.12, PA 12.12, PA 11, PA 12; partially aromatic polyamides such as polyphthalamides, for example made from terephthalic acid and / or isophthalic acid and aliphatic diamines or from aliphatic dicarboxylic acids such as adipic acid or sebacic acid and aromatic diamines such as 1,4 or 1,3-diaminobenzene;
- partially aromatic polyamides such as polyphthalamides, for example made from terephthalic acid and / or isophthalic acid and aliphatic diamines or from aliphatic dicarboxylic acids such as adipic acid or sebacic acid and aromatic diamines such as 1,4 or 1,3-diaminobenzene;
- condensation polymers are aliphatic polyesters made from aliphatic diols such as ethylene glycol, 1,3-propanediol, 1,2-propanediol, 1,4-butanediol, 1,5-pentanediol, neopentyl glycol, 1,6-hexanediol and aliphatic dicarboxylic acids such as malonic acid , Succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, brassylic acid, fumaric acid or itaconic acid and also from hydroxycarboxylic acids or their ring-forming compounds, such as polycaprolactone, poly-3-hydroxybutyrate, poly-4-hydroxybutyrate , Poly-3-hydroxyvalerate, poly (hexamethylene succinate), poly (
- the condensation polymer is selected from the group consisting of PLA, PBA and copolymers thereof, the PLA copolymers preferably selected by ring-opening polymerization of D-lactide and / or L-lactide with comonomers selected from hydroxycarboxylic acids, in particular glycolic acid, 4 Hydroxybutyric acid, 3-hydroxybutyric acid, 3-hydroxyvaleric acid or mandelic acid; Diols, especially ethylene glycol or butanediol; and / or carboxylic acids, in particular adipic acid or terephthalic acid; were obtained.
- the PLA copolymers preferably selected by ring-opening polymerization of D-lactide and / or L-lactide with comonomers selected from hydroxycarboxylic acids, in particular glycolic acid, 4 Hydroxybutyric acid, 3-hydroxybutyric acid, 3-hydroxyvaleric acid or mandelic acid; Diols, especially ethylene glycol or butanediol;
- the additive composition is preferably from 0.01 to 10.00% by weight, preferably from 0.05 to 5.00% by weight, particularly preferably from 0.10 up to 2.00% by weight.
- the condensation polymer composition according to the invention can also contain at least one additive selected from the group consisting of primary antioxidants, secondary antioxidants, UV absorbers, light stabilizers, metal deactivators, filler deactivators, antiozonants, nucleating agents, antinucleating agents, impact strength improvers, lubricants, rheology modifiers , Chain extenders, processing aids, mold release aids, flame retardants, pigments, dyes, optical brighteners, antimicrobial agents, antistatic agents, slip agents, antiblocking agents, coupling agents, crosslinking agents, anti-crosslinking agents, hydrophilizing agents, hydrophobizing agents, anti-blocking agents, hydrophobizing agents, hydrophobizing agents , Contain compatibilizers, oxygen scavengers, acid scavengers, blowing agents, degradation additives, defoaming agents, odor scavengers, marking agents and anti-fogging agents.
- at least one additive selected from the group consisting of primary antioxidants, secondary
- the at least one additive based on the total condensation polymer composition, is from 0.01 to 5.00% by weight, preferably from 0.05 to 3.00% by weight, particularly preferably from 0.10 up to 1.00% by weight is included.
- Plasticizers, fibers such as glass fibers and / or carbon fibers and fillers are not included in the additives.
- these substances in their total can contain up to 80 parts by weight, based on 100 parts by weight of the condensation polymer composition described above, be included.
- compositions contain in particular further classes of nucleating agents, additives for increasing molecular weight (chain extenders) or fillers.
- Preferred nucleating agents are talc, alkali or alkaline earth salts of mono- and polyfunctional carboxylic acids such as. Benzoic acid, succinic acid, adipic acid, for example sodium benzoate, Zinkglycerolat, aluminum niumhydroxy-bis (4-tert-butyl) benzoate, 2,2 '-methylene-bis- (4,6-di-tert-butyl-phenyl ) phosphate, as well as trisamides and diamides such as trimesic acid tricyclohexylamide, trimesic acid tri (4-methylcyclohexylamide), trimesic acid tri (tert-butylamide), N, N ' , N " -1,3,5-benzene triyltris (2,2-dimethyl- propanamide) or 2,6-naphthalenedicarboxylic acid dicyclohexylamide or orotic acid.
- Preferred additives for increasing molecular weight are diepoxides, bis-oxazolines, bis-oxazolones, bis-oxazines, diisocyanates, dianhydrides, bis-acyllactams, bis-maleimides, dicyanates, carbodiimides.
- Further suitable chain extenders are polymeric compounds such as polystyrene-polyacrylate-polyglycidyl (meth) acrylate copolymers, polystyrene-maleic anhydride copolymers and polyethylene-maleic anhydride copolymers.
- Preferred fillers and / or reinforcing materials are calcium carbonate, silicates, talc, mica, kaolin, metal oxides and metal hydroxides, carbon black, graphite, wood flour or fibers from natural products such as cellulose, glass fibers, carbon fibers, polyaramid fibers and other synthetic polymer fibers.
- Further suitable fillers are hydrotalcites or zeolites or sheet silicates such as, for example, montmorillonite, bentonite, beidelite, mica, hectorite, saponite, vermiculite, ledikite, magadite, IIIite, kaolinite, wollastonite, attapulgite.
- compositions according to the invention can additionally contain are primary and secondary antioxidants:
- Suitable primary antioxidants (A) are phenolic antioxidants, amines and lactones.
- Suitable phenolic antioxidants are, for example:
- Alkylated monophenols such as, for example, 2,6-di-tert-butyl-4-methylphenol, 2-tert-butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-ethylphenol, 2,6-di -tert-butyl-4-n-butylphenol, 2,6-di-tert-butyl-4-isobutylphenol, 2,6-dicyclopentyl-4-methylphenol, 2- ( ⁇ -methylcyclohexyl) -4,6-dimethylphenol , 2,6-dioctadecyl-4-methylphenol, 2,4,6-tricyclohexylphenol, 2,6-di-tert-butyl-4-methoxymethylphenol, linear or branched nonylphenols, such as 2,6-dinonyl- 4-methyl-phenol, 2,4-dimethyl-6- (l'-methylundec-l'-yl) phenol, 2,4-d
- Alkylthiomethylphenols such as 2,4-dioctylthiomethyl-6-tert-butylphenol, 2,4-dioctylthiomethyl-6-methylphenol, 2,4-dioctylthiomethyl-6-ethylphenol, 2,6-didodecylthiomethyl-4-nonylphenol;
- Hydroquinones and alkylated hydroquinones such as, for example, 2,6-di-tert-butyl-4-methyoxyphenol, 2,5-di-tert-butylhydroquinone, 2,5-di-tert-amylhydroquinone, 2,6-diphenyl-4 -octadecyloxyphenol, 2,6-di-tert-butylhydroquinone, 2,5-di-tert-butyl-4-hydroxyanisole, 3,5-di-tert-butyl-4-hydroxyanisole, 3,5-di-tert-butyl -4-hydroxyphenyl stearate, bis (3,5-di-tert-butyl-4-hydroxylphenyl) adipate; Tocopherols, such as, for example, ⁇ -, ß-, ⁇ -, ⁇ -tocopherol and mixtures of these (vitamin E);
- Hydroxylated thiodiphenyl ethers such as 2,2'-thiobis (6-tert-butyl-4-methyl-phenol), 2,2'-thiobis (4-octylphenol), 4,4'-thiobis (6-tert-butyl- 3-methylphenol), 4,4'-thiobis (6-tert-butyl-2-methylphenol), 4,4'-thiobis (3,6-di-sec-amylphenol), 4,4'-bis ( 2,6-dimethyl-4-hydroxyphenyl disulfide;
- Alkylidenebisphenols such as 2,2'-methylenebis (6-tert-butyl-4-methylphenol), 2,2'-methylenebis (6-tert-butyl-4-ethylphenol), 2,2'-methylenebis [4-methyl- 6- (a-methylcyclohexyl) phenol], 2,2'-methylenebis (4-methyl-6-cyclhexylphenol), 2,2'-methylenebis (6-nonyl-4-methylphenol), 2,2'-methylenebis (4 , 6-di-tert-butylphenol), 2,2'-ethylidenebis (4,6-di-tert-butylphenol), 2,2'-ethylidenebis (6-tert-butyl-4-isobutylphenol), 2,2 ' -Methylene bis [6- ( ⁇ -methylbenzyl) -4-nonylphenol], 2,2'-methylenebis [6- ( ⁇ , ⁇ -dimethylbenzyl) -4-nonylphenol],
- O-, N- and S-benzyl compounds such as, for example, 3,5,3 ', 5'-tetra-tert-butyl-4,4'-dihydroxydibenzyl ether, octadecyl-4-hydroxy-3,5-dimethylbenzyl mercapto acetate , Tridecyl-4-hydroxy-3,5-di-tert-butylbenzyl mercaptoacetate, tris (3,5-di-tert-butyl-4-hydroxybenzyl) amine, bis (4-tert-butyl-3-hydroxy-2, 6-dimethylbenzyl) dithioterephthalate, bis (3,5-di-tert-butyl-4-hydroxybenzyl) sulfide, isooctyl-3,5-di-tert-butyl-4-hydroxybenzyl mercaptoacetate;
- Hydroxybenzylated malonates such as dioctadecyl-2,2-bis (3,5-di-tert-butyl-2- hydroxybenzyl) malonate, dioctadecyl 2- (3-tert-butyl-4-hydroxy-5-methyl-benzyl) malonate, didodecyl mercaptoethyl-2,2-bis (3,5-di-tert-butyl-4-hydroxy-benzyl ) malonate, bis [4- (1,1,3,3-tetramethylbutyl) phenyl] -2,2-bis (3,5-di-tert-butyl-4-hydroxybenzyl) malonate;
- Aromatic hydroxybenzyl compounds such as 1,3,5-tris (3,5-di-tert-butyl-4-hydroxybenzyl) -2,4,6-trimethylbenzene, 1,4-bis (3,5-di-tert- butyl-4-hydroxybenzyl) -2,3,5,6-tetramethylbenzene, 2,4,6-tris (3,5-di-tert-butyl-4-hydroxybenzyl) phenol;
- Triazine compounds such as 2,4-bis (octylmercapto) -6- (3,5-di-tert-butyl-4-hydroxyanilino) -1,3,5-triazine, 2-octylmercapto-4,6-bis (3 , 5-di-tert-butyl-4-hydroxyanilino) -1,3,5-triazine, 2-octylmercapto-4,6-bis (3,5-di-tert-butyl-4-hydroxyphenoxy) -1,3,5-triazine, 2,4,6-tris (3,5-di-tert-butyl-4-hydroxyphenoxy) -1,2,3-triazine, 1,3,5-tris (3, 5-di-tert-butyl-4-hydroxybenzyl) isocyanurate, 1,3,5-tris (4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate, 2,4,6-tris (3
- Benzyl phosphonates such as dimethyl 2,5-di-tert-butyl-4-hydroxybenzylphosphonate, diethl-3,5-di-tert-butyl-4-hydroxybenzylphosphonate, dioctadecyl
- Acylaminophenols such as 4-hydroxylauranilide, 4-hydroxystearanilide, octyl N- (3,5-di-tert-butyl-4-hydroxyphenyl) carbamate;
- Esters of ß- (3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid with monohydric or polyhydric alcohols e.g. methanol, ethanol, n-octanol, i-octanol, octadecanol, 1,6-hexanediol, 1, 9-nonanediol, ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N'-bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol , Trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo [2.
- Esters of ⁇ - (3,5-dicyclohexyl-4-hydroxyphenyl) propionic acid with monohydric or polyhydric alcohols e.g. methanol, ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2- Propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris- (hydroxyethyl) isocyanurate, N, N'-bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolxymethyl- 1-phosphymethyl 2,6,7-trioxabicyclo [2.2.2] octane;
- Esters of (3,5-di-tert-butyl-4-hydroxyphenyl) acetic acid with mono- or polyhydric alcohols e.g. methanol, ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, Ethylene glycol, 1,2-propanediol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N'-bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexenetadecanol , Trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo [2.2.2] octane;
- Amides of ß- (3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid such as N, N'-bis (3,5-di-tert-butyl-4-hydroxyphenylpropionyl) hexamethylene diamide, N, N ' - bis (3,5-di-tert-butyl-4-hydroxyphenylpropionyl) hexamethylene diamide, N, N'-bis (3,5-di-tert-butyl-4-hydroxyphenylpropionyl) hexamethylene diamide, N, N'-bis (3 , 5-di-tert-butyl-4-hydroxyphenylpropionyl) hydrazide, N, N'-bis [2- (3- [3,5-di-tert-butyl-4-hydroxyphenyl] propionyloxy) ethyl] oxamide (Naugard ® XL-1, distributed by Uniroyal);
- vitamin C Ascorbic acid (vitamin C).
- Particularly preferred phenolic antioxidants are the following structures:
- phenolic antioxidants are based on renewable raw materials such as B. tocopherols (vitamin E), tocotrienols, tocomonoenols, carotenoids, hydroxytyrosol, flavonols such as chrysin, quercitin, hesperidin, neohesperidin, naringin, morin, kaempferol, fisetin, anthocyanins such as delphinidin and malvidin, curcumin, carnosolic acid and resveratrol.
- renewable raw materials such as B. tocopherols (vitamin E), tocotrienols, tocomonoenols, carotenoids, hydroxytyrosol, flavonols such as chrysin, quercitin, hesperidin, neohesperidin, naringin, morin, kaempferol, fisetin, anthocyanins such as
- Suitable aminic antioxidants are, for example: N, N'-di-isopropyl-p-phenylenediamine, N, N'-di-sec-butyl-p-phenylenediamine, N, N'-bis (1,4-dimethylpentyl) -p- phenylenediamine, N, N'-bis (1-ethyl-3-methyl-pentyl) -p-phenylenediamine, N, N'-bis (1-methylheptyl) -p-phenylenediamine, N, N'-dicyclohexyl-p-phenylenediamine , N, N'-diphenyl-p-phenylenediamine, N, N'-bis (2-naphthyl) -p-phenylenediamine, N-isopropyl-N'-phenyl-p-phenylenediamine, N- (1,3-dimethylbutyl) -N
- Preferred amine antioxidants are: N, N'-di-isopropyl-p-phenylenediamine, N, N'-di-sec-butyl-p-phenylenediamine, N, N'-bis (1,4-dimethylpentyl) -p -phenylenediamine, N, N'-bis (l-ethyl-3-methylpentyl) -p-phenylenediamine, N, N'-bis (1-methylheptyl) -p-phenylenediamine, N, N'-dicyclohexyl-p- phenylenediamine, N, N'-diphenyl-p-phenylenediamine, N, N'-bis (2-naphthyl) -p-phenylenediamine, N-isopropyl-N'-phenyl-p-phenylenediamine, N- (1,3 -Dimethylbutyl) -N'-phen
- aminic antioxidants are hydroxylamines or N-oxides (nitrones), such as, for example, N, N-dialkylhydroxylamines, N, N-dibenzylhydroxylamine, N, N-dilaurylhydroxylamine, N, N-distearylhydroxylamine, N-benzyl-a-phe - nylnitron, N-octadecyl-a-hexadecylnitron, as well as Genox EP (additive) according to the formula:
- Suitable lactones are benzofuranones and indolinones such as, for example, 3- (4- (2-acetoxyethoxy) phenyl] -5,7-di-tert-butyl-benzofuran-2-one, 5,7-di-tert-butyl-3 - [4- (2-stearoyloxyethoxy) phenyl] benzofuran-2-one, 3,3'-bis [5,7-di-tert-butyl-3- (4- (2-hydroxyethoxy] phenyl) benzofuran-2- one), 5,7-di-tert-butyl-3- (4-ethoxyphenyl) benzofuran-2-one, 3- (4-acetoxy-3,5-dimethylphenyl) -5,7-di-tert- butyl-benz-ofuran-2-one, 3- (3,5-dimethyl-4-pivaloyloxyphenyl) -5,7-di-tert-buty
- Suitable secondary antioxidants are organosulfur compounds such as sulfides and disulfides, e.g. distearyl thiodipropionate, dilauryl thiodipropionate; Ditridecyldithiopropionate, ditetradecylthiodipropionate, 3- (dodecylthio) -, 1,1 '- [2,2-bis [[3- (dodecylthio) -l-oxopropoxy] methyl] -l, 3-propanediyl] propanoic acid ester.
- organosulfur compounds such as sulfides and disulfides, e.g. distearyl thiodipropionate, dilauryl thiodipropionate; Ditridecyldithiopropionate, ditetradecylthiodipropionate, 3- (dodecylthio) -, 1,1
- Suitable light stabilizers are, for example, compounds based on 2- (2 'hydroxyphenyl) benzotriazoles, 2-hydroxybenzophenones, esters of benzoic acids, acrylates, oxamides and 2- (2-hydroxyphenyl) -1,3,5-triazines.
- Suitable 2- (2 'hydroxyphenyl) benzotriazoles are for example 2- (2'-hy- roxy-5'-methylphenyl) benzotriazole, 2- (3', 5'-di-tert-butyl-2'-hydroxyphenyl) - benzotriazole , 2- (5'-tert-butyl-2'-hydroxyphenyl) benzotriazole, 2- (2'-hydroxy-5 '- (11l, 3,3-tetramethylbutyl) phenyl) benzotriazole, 2- (3', 5'-di-tert-butyl-2'-hydroxyphenyl) -5-chlorobenzotriazole, 2- (3'-tert-butyl-2'-hydroxy-5'-methylphenyl-5-chlorobenzotriazole, 2- ( 3'-sec-Butyl-5'-tert-butyl-2'-hydroxyphenyl) benzotriazole, 2- (2'-hydroxy-4'-octyloxyphenyl)
- Suitable 2-hydroxybenzophenones are, for example, 4-hydroxy-, 4-methoxy-, 4-octyloxy-, 4-decyloxy- 4-dodecyloxy, 4-benzyloxy, 4,2 ', 4'-trihydroxy- and 2' Hydroxy-4,4'-dimethoxy derivatives of 2-hydroxybenzophenones.
- Suitable acrylates are, for example, ethyl a-cyano- ⁇ , ⁇ -diphenyl acrylate, isooctyl-a-cyano- ⁇ , ⁇ -diphenyl acrylate, methyl-a-carbomethoxycinnamate, methyl-a-cyano- ⁇ -methyl-p-methoxycinnamate, Butyl ⁇ -cyano- ⁇ -methyl-p-methoxycinnamate, methyl- ⁇ -carbomethoxy-p-methoxycinnamate and N- ( ⁇ -carbo-methoxy- ⁇ -cyanovinyl) -2-methylindoline.
- Suitable esters of benzoic acids are, for example, 4-tert-butylphenyl salicylate, phenyl salicylate, octylphenyl salicylate, dibenzoyl resorcinol, bis (4-tert-butylbenzoyl) resorcinol, benzoyl resorcinol, 2,4-di-tert-butylphenyl-3,5-di-tert- butyl-4-hydroxybenzoate, hexadecyl-3,5-di-tert-butyl-4-hydroxybenzoate, octadecyl-3,5-di-tert-butyl-4-hydroxybenzoate, 2-methyl-4,6-di- tert-butylphenyl
- Suitable oxamides are, for example, 4,4'-dioctyloxyoxanilide, 2,2'-diethoxy-oxanilide, 2,2'-dioctyloxy-5,5'-di-tert-butoxanilide, 2,2'-didodecyloxy-5,5'- di-tert-butoxanilide, 2-ethoxy-2'-ethyloxanilide, N, N'-bis (3-dimethylaminopropyl) oxamide, 2-ethoxy-5-tert-butyl-2'-ethoxanilide and its mixtures with 2- Ethoxy-2'-ethyl-5,4'-di-tert-butoxanilide, mixtures of o- and p-methoxy-disubstituted oxanilides and mixtures of o- and p-ethoxy-disubstituted oxanilides.
- Suitable 2- (2-hydroxyphenyl) -1,3,5-triazines are, for example, 2,4,6-tris (2-hydroxy-4-octyloxyphenyl) -1,3,5-triazine, 2- (2-hydroxy -4-octyloxyphenyl) -4,6- bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- (2,4-dihydroxyphenyl) -4,6-bis (2,4-dimethylphenyl ) -1,3,5-triazine, 2,4-bis (2-hydroxy-4-propyloxyphenyl) -6- (2,4-dimethylphenyl) -1,3,5-triazine, 2- (2- Hydroxy-4-octyloxyphenyl) -4,6-bis (4-methyl-phenyl-1,3,5-triazine, 2- (2-hydroxy-4-dodecyloxyphenyl) -4,6-bis (2,4-di
- Suitable metal deactivators are, for example, N, N'-diphenyloxamide, N- Salicylal-N'-salicyloylhydrazine, N, N'-bis (salicyloyl) hydrazine, N, N'-bis (3,5-di-tert-butyl-4-hydroxyphenylpropionyl) hydrazine, 3-salicyloylamino-1,2,4 -triazole, bis (benzylidene) oxalyldihydrazide, oxanilide, isophthaloyldihydrazide, sebacoylbisphenylhydrazide, N, N'-diacetyladipoyldihydrazide, N, N'-bis (salicyloyl) oxylyldihydrazide, N, N'-bis (salicyloyldihydrazide.
- Suitable hindered amines are, for example, 1,1-bis (2,2,6,6-tetramethyl-4-piperidyl) succinate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, bis (l -octy- loxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) -n-butyl-3,5-di- tert-butyl-4-hydroxybenzylmalonate, the condensation product of 1- (2-hydroxyethyl) -2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid, linear or cyclic condensation products of N, N'-bis (2 , 2,6,6-tetramethyl-4-piperidyl) hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine, tris (2,
- n is in each case from 3 to 100.
- Suitable dispersants are, for example:
- Polyacrylates e.g. copolymers with long-chain side groups, polyacrylate Block copolymers, alkylamides: e.g. N, N'-1,2-ethanediylbisoctadecanamide sorbitan esters, e.g. monostearyl sorbitan esters, titanates and zirconates, reactive copolymers with functional groups e.g.
- polypropylene-co-acrylic acid polypropylene-co-maleic anhydride, polyethylene co-glycidyl methacrylate, polystyrene-alt-maleic anhydride-polysiloxanes: for example dimethylsilanediol-ethylene oxide copolymer, polyphenylsiloxane copolymer, amphiphilic copolymers: for example polyethylene-block-polyethylene oxide, dendrimers, for example dendrimers containing hydroxyl groups.
- Suitable anti-nucleating agents are azine dyes such as nigrosine.
- Suitable flame retardants are, in particular, inorganic flame retardants such as Al (OH) 3 , Mg (OH) 2 , AIO (OH), MgCO 3 , sheet silicates such as montmorillonite or sepiolite, unmodified or organically modified, double salts such as Mg-Al- Silicates, POSS (Polyhedral Oligomeric Silsesquioxane) compounds, huntite, hydromagnesite or halloysite
- inorganic flame retardants such as Al (OH) 3 , Mg (OH) 2 , AIO (OH), MgCO 3
- sheet silicates such as montmorillonite or sepiolite, unmodified or organically modified, double salts such as Mg-Al- Silicates, POSS (Polyhedral Oligomeric Silsesquioxane) compounds, huntite, hydromagnesite or halloysite
- Suitable pigments can be inorganic or organic in nature.
- Inorganic pigments are, for example, titanium dioxide, zinc oxide, zinc sulphide, iron oxide, ultramarine, carbon black, organic pigments are, for example, anthraquinones, anthanthrones, benzimidazolones, quinacridones, diketopyrrolopyrroles, dioxazines, indanthrones, isoindolinones, azo compounds, perylenes, phtha- locyanine or pyranthrones.
- Further suitable pigments are effect pigments based on metal or pearlescent pigments based on metal oxide.
- Suitable optical brighteners are, for example, bisbenzoxazoles, phenylcoumarins or bis (styryl) biphenyls and, in particular, optical brighteners of the formulas:
- Suitable filler deactivators are, for example, polysiloxanes, polyacrylates, in particular block copolymers such as polymethacrylic acid-polyalkylene oxide or polyglycidyl (meth) acrylates and their copolymers, for example with styrene, and epoxides, for example of the following structures:
- Suitable antistatic agents are, for example, ethoxylated alkylamines, fatty acid esters, alkyl sulfonates and polymers such as, for example, polyetheramides.
- Suitable antiozonants are the above-mentioned amines, such as, for example, N, N'-diisopropyl-p-phenylenediamine, N, N'-di-sec-butyl-p-phenylenediamine, N, N'-bis (1,4-dimethylpentyl) ) -p-phenylenediamine, N, N'-dicyclohexyl-p-phenylenediamine, N-isopropyl-N'-phenyl-p-phenylenediamine, N- (1,3-dimethylbutyl) -N'-phenyl-p-phenylenediamine , N- (1-methylheptyl) -N'-phenyl-p-phenylenediamine, N-cyclohexyl-N'-phenyl-p-phenylenediamine
- Suitable mold release agents are, for example, montan waxes.
- the additive composition according to the invention and optionally the additional additives are incorporated into the plastic using customary processing methods, the polymer being melted and mixed with the additive composition according to the invention and any other additives, preferably using a mixer, kneader or extruder.
- Preferred processing machines are extruders such as single-screw extruders, twin-screw extruders, planetary roller extruders, ring extruders, co-kneaders, which are preferably equipped with vacuum degassing. Processing can take place under air or, if necessary, under inert gas conditions.
- additive compositions according to the invention can be produced and introduced in the form of so-called masterbatches or concentrates which contain, for example, 10-90% of the compositions according to the invention in a polymer.
- the present invention also relates to a molding compound or a molded part that can be produced or produced from the condensation polymer composition according to the invention, in particular in the form of foils (films), in particular agricultural foils such as mulch, tunnel or perforated foils, tapes ders, hollow bodies and foams, injection molded parts, fibers, profiles and other extrudates, parts from additive or generative manufacturing processes such as fused layer modeling (FLM), layer laminate modeling (LLM), selective laser sintering (SLS) and other BD -Printing process, packaging for life- Cosmetics or cosmetic products, encapsulations of active ingredients and biologically active substances, bandages, surgical sutures and / or hygiene products, in particular as a component of disposable diapers, sanitary towels and tampons.
- foils films
- agricultural foils such as mulch, tunnel or perforated foils, tapes ders, hollow bodies and foams
- injection molded parts fibers, profiles and other extrudates
- parts from additive or generative manufacturing processes such as fuse
- the present invention relates to a process for the hydrolytic degradation of condensation polymers by adding an above-described additive composition according to the invention to the condensation polymer and subjecting the additive composition to hydrolysing conditions.
- the conditions of hydrolysis are given when the plastic composition comes into contact with water, for example due to air humidity, especially high air humidity> 30%, especially in sewage plants, when composting waste materials, and generally in the environment, for example in rivers and seas .
- the present invention relates to the use of an inventive additive composition described above for accelerating the hydrolysis of a condensation polymer to which the additive composition is added when the condensation polymer with additive is exposed to hydrolyzing conditions, compared with a condensation polymer which has not been added to the additive composition.
- the described use of the additive composition according to the invention at the same time stabilizes processing under aprotic conditions of the thermoplastic polymer into which it is incorporated, and at the same time accelerates the hydrolytic degradation of the condensation polymer under protic conditions Use case enables.
- the present invention also relates to the use of the condensation polymer composition according to one of the claims
- packaging for the production of packaging, in particular packaging for food or cosmetic products
- inventive examples and the comparative examples were produced by extrusion with a co-rotating Process 11 twin-screw extruder from Thermo Fisher Scientific, with a screw diameter of 11 mm and a length to diameter ratio (L / D) of 40.
- the additives were mixed manually with the matrix polymer in a plastic bag and dosed volumetrically. Processing took place at a throughput of 1 kg / h and a screw speed of 200 rpm at 200 ° C.
- the polymer was stored as granules in deionized water at 35 and 58 ° C and determined after various times of the MVR.
- the MVR was measured on an MI-2 melt index tester from Göttfert at a test temperature of 190 ° C. and a punch weight of 2.16 kg. Before the measurement, the samples were dried in a vacuum oven at 80 ° C. for at least 16 h. The preheating time was 4 minutes. Give reasonable is the MVR min in cm3 / 10 min. Table 1 Storage in water at 58 ° C
- the combinations of hydroxycarboxylic acid salts and phosphorus compounds used in the examples according to the invention demonstrate, depending on the proportions of the two components, a control and regulation of the degradability of PLA under protic conditions.
- An excess or the same concentration of phosphorus compound compared to the hydroxycarboxylic acid results in accelerated degradation with good processing stability (inventive example 1 and 2, increased MVR after storage in water compared to the comparative example). If, however, a delay in degradability is desired, it is possible to achieve this by using an excess of the hydroxycarboxylic acid salt (example 3 according to the invention).
- the hydrolysis of the condensation polymer can thus be controlled through the ratio of hydroxycarboxylic acid salt and phosphite and thus adjusted according to the potential application.
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Abstract
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| DE102020205094.5A DE102020205094A1 (de) | 2020-04-22 | 2020-04-22 | Additivzusammensetzung sowie deren Verwendung, Kondensationspolymerzusammensetzung, Formmasse und hieraus hergestellte Formmassen und Formteile und deren Verwendung |
| PCT/EP2021/059980 WO2021213939A1 (de) | 2020-04-22 | 2021-04-16 | Additivzusammensetzung sowie deren verwendung, kondensationspolymerzusammensetzung, formmasse und hieraus hergestellte formmassen und formteile und deren verwendung |
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| EP (1) | EP4139387A1 (de) |
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| KR (1) | KR20230007421A (de) |
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| DE102019210040A1 (de) | 2019-07-08 | 2021-01-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verwendung von phenolisch substituierten Zuckerderivaten als Stabilisatoren, Kunststoffzusammensetzung, Verfahren zur Stabilisierung von Kunststoffen sowie phenolisch substituierte Zuckerderivate |
| KR20230095704A (ko) | 2021-12-22 | 2023-06-29 | 엘지디스플레이 주식회사 | 전계 발광 표시 장치 |
| WO2026084070A1 (ja) * | 2024-10-18 | 2026-04-23 | 王子ホールディングス株式会社 | 生分解性フィルム及び積層体 |
| CN119119436A (zh) * | 2024-10-28 | 2024-12-13 | 万华化学集团股份有限公司 | 一种高透浅色耐热共聚酯及其制备方法 |
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| BR9507780A (pt) * | 1994-05-27 | 1997-08-19 | Ciba Geigy Ag | Combinaçoes de poliéster/policarbonato com propriedades realçadas |
| JP3579699B2 (ja) * | 1996-01-17 | 2004-10-20 | チッソ株式会社 | 熱可塑性重合体組成物 |
| CA2550324A1 (en) | 2003-12-30 | 2005-07-14 | Gumlink A/S | Chewing gum comprising biodegradable polymers and having accelerated degradability |
| JP4770270B2 (ja) | 2005-05-26 | 2011-09-14 | 東レ株式会社 | 樹脂組成物ならびにそれからなる成形品、フィルムおよび繊維 |
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2020
- 2020-04-22 DE DE102020205094.5A patent/DE102020205094A1/de active Pending
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2021
- 2021-04-16 EP EP21719907.4A patent/EP4139387A1/de active Pending
- 2021-04-16 KR KR1020227040954A patent/KR20230007421A/ko active Pending
- 2021-04-16 WO PCT/EP2021/059980 patent/WO2021213939A1/de not_active Ceased
- 2021-04-16 JP JP2022563924A patent/JP2023522233A/ja active Pending
- 2021-04-16 CN CN202180030633.5A patent/CN115461396B/zh active Active
- 2021-04-16 US US17/995,978 patent/US20230203274A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20230203274A1 (en) | 2023-06-29 |
| DE102020205094A1 (de) | 2021-10-28 |
| WO2021213939A1 (de) | 2021-10-28 |
| JP2023522233A (ja) | 2023-05-29 |
| KR20230007421A (ko) | 2023-01-12 |
| CN115461396B (zh) | 2024-07-12 |
| CN115461396A (zh) | 2022-12-09 |
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