생분해성 폴리에스테르 혼합물

The, the present purpose of the invention recent extrusion and injection molding applications while satisfying preconditions material for one cartridge configuration in addition a polymer having a degradation thereof, yet soil excellent electrode 104 is provided under the.

The present inventor such is the aforementioned biodegradable polyester mixture as,

I) based on total weight of ii and i component, a-1 a) to e-1) I 45 ∼ 95 weight % polyester formed from:

A-1) based on total weight of b and a component, aliphatic C₉-C₁₈ dicarboxylic acid or C₉-C₁₈ dicarboxylic acid derivatives 40 ∼ 70 weight %;

B-1) based on total weight of b and a component, terephthalic acid or terephthalic acid derivatives 30 ∼ 60 weight %;

C-1) based on total weight of b and a component, C₃-C₆ diol 98 ∼ 100 weight %;

D-1) based on total weight of b and a component, at least 3 extended 0 ∼ 2 weight %;

E-1) component based on total weight of a to e, chain extender 0 ∼ 2 weight %;

Ii) based on total weight of ii and i component, a-2 a) to e-2) polyester formed from II 5 ∼ 55 weight %:

A-2) based on total weight of b and a component, aliphatic C₄-C₆ dicarboxylic acid or dicarboxylic acid derivatives 40 ∼ 70 weight %;

B-2) based on total weight of b and a component, terephthalic acid or terephthalic acid derivatives 30 ∼ 60 weight %;

C-2) based on total weight of b and a component, C₃-C₆ diol 98 ∼ 100 weight %;

D-2) based on total weight of b and a component, at least 3 extended 0 ∼ 2 weight %;

E-2) component based on total weight of a to e, chain extender 0 ∼ 2 weight %;

Iii) polymer mixture based on total weight of iv to i, 10 ∼ 25 weight % calcium carbonate; and

Iv) polymer mixture based on total weight of iv to i, talc 3 ∼ 15 weight %

Realized by biodegradable polyester mixture including a it has been found that.

The biodegradable film polyester, for example may be used as a mulching film. Its crystal requirements, instructions (tongue) tongs mulching film transparent in addition in particular as well as tear strength and stability to the solar in the case of is. (By carbon black) black mulching film have but the absorption effect and is useful for light-UV, which absorbing also heat radiating in addition, this least is transmitted to soil less heat induced by such a specific and corn melon crop yield/yield can be realized in power generation is thus higher in. is that.

The WO 2009/071475 phenyl tree Oh position hydroxy stabilizer including, based on or polyethylene mulch film is disclosure. The biodegradable film polyester in WO 2009/071475 do not go described are the maintaining member. Aliphatic and/or aromatic of dicarboxylic acid and aliphatic dihydroxy comprises a compound comprising a group comprising biodegradable polyester-based biodegradable life SPAN of the mulching film transparent shorter too often: as the superintendent 2 only according to wall thickness. Light stabilizer, e.g. UV absorbent and HALS stabilizer, or a combination thereof, conventional to stabilize the mulching film of UV is recommended. Absorbent UV light, from the light that acts by by filtering ultraviolet portion, absorbed light is converted into heat energy is. HALS stabilizing agent is a in a polymer selected from a group consisting of gold (scission product) cleavage products generated functions, by inhibiting the reaction of. Associated with the effective component anemonin contained when combined, two different decomposition 2 synergistic effect in inhibiting mechanism 2000. ecoflex^® in a higher melting (BASF SE) aromatic polyester portion, hydroxy phenyl tree Oh position orgin UV absorbent, e.g. Tinuvin^® 1577 be used alone or in or HALS stabilizer, e.g. Tinuvin^® 111 or benzophenone based on UV absorbent, e.g. Uvinul^® 3008 use with special stabilizing effect while the, effect of such stabilized proteins in particular narrow wall thickness substantially mulching film amorphous carbon is transparent in it has been found that insufficient.

In addition in particular a tear strength buckle of mulching film said version thin (less than 30 microns) insufficient purchase in..

Therefore, the present purpose of the invention in addition use in the field (ground) long and periods, tongue tear strength which is higher is, ultimately in soil simultaneously from decomposition (underground), biodegradable, mulching film preferably a transparent by a rope. provides.

The present inventor is such iv to i component of the present invention in addition to UV absorbent 2-(4, 6-bis-biphenyl-4-one -1, 3, 5-triazine-2-one)-5-(2-ethyl-(n)-cyclohexyloxy) includes phenol, agricultural applications realized by polyester mixture useful in particular is that is found out.

Is described in time more specifically the present invention refers to hereinafter.

Won in [...] , aromatic polyester is partially biodegradable polyester mixture of the present invention is publicly known as aliphatic and aromatic dicarboxylic acid and a component based on compounds that dihydroxy aliphatic i ii as any polyester I and components as any polyester II. using. Shared by polyester said they feature exploits the fact that in meaning of DIN EN 13432 is biodegradable. Polyester I and II an essentially aliphatic dicarboxylic acids difference. length chain (a).

The present purpose of the invention in the case of aromatic polyester portion (ii and i component) in addition the lower proportion of substructure, e.g. polyether ester, polyester amides, polyether ester amides or polyester and polyurethane and including polyester derivatives including an arylalkyl group. The appropriate region aromatic polyester includes a linear polyester (WO 92/09654). Branched chain/or preferably polyester aromatic an extended portion of the circuitry. Branched said citation is aromatic polyester portion 2002, a citation reference clearly herein 15176, 21689 to WO 96/15173 is publicly known from WO 98/12242 or 21692, 25446, 25448 to. In addition different portions useful is a mixture of aromatic polyester. Topics of interest of a renewable raw the recent developments is formed inside the tie. based on (WO-A 2006/097353, WO-A 2006/097354 and WO A 2010/034710 reference).

Preferably polyester of the present invention I and II described WO 2009/127556 obtained by processing. [...] processes disclosed herein work method is high viscosities, and low acid polyester valve with combined in that it provides a and down. Low has an acid value diisocyanate with are requirements of an effective response, low MVR value of the present invention to achieve, in a simple and the systematic is obtainable by way of.. EN ISO 1133 (190 °C, 2.16 kg weight) capacity rate melt according to 0.5 ∼ 6.0 cm ³ / 10 ingredient (MVR) is, in particular 0.8 ∼ 5 cm ³ / 10 min. polyester tongue tear strength and relatively smaller cross resistance very thin the combination of useful in particular for the preparation of films.

WO 2009/127556 described continuous process for the described more specifically hereinafter. For example, 1, 4-butanediol, three basses it buys , terephthalic acid and optionally common additives such as a surfactant mixture comonomers having (therapeuticals catalyst) for, forming a paste by mixing, or, alternatively, dicarboxylic acid and dihydroxy compound and optionally common additives such as a a a liquid ester comonomers having (therapeuticals catalyst), fed to a reaction,

1. Number 1 step, said continuous mixture or esterified, or, all or part each and transesterification in conjunction with the catalyst;

2. Number 2 step, 1.) obtained according to esterification/transesterification product, where appropriate, or remaining in conjunction with the catalyst, (preferably, the product stream has a strong film cascade onto co-current mobile the reactor and which is directed steam is from a reaction mixture in column reactor removed situ) 20 ∼ 60 ml/g can viscosity according to DIN 53728 continuous condensation and pre;

3. Number 3 step, 2.) obtainable from a product that, (preferably, cage reactor), 70 ∼ 130 ml/g to a DIN 53728 can viscosity according to continuous condensation and pre;

4. Number 4 step, 3.) obtainable from a product that, extruder, polyaddition of in a mixer or static reactor List reaction can viscosity according to DIN 53728 160 ∼ 250 ml/g up and continuous reaction to chain extender.

The continuous process described WO 2009/127556 DIN EN 12634 of less than 1.0 mg KOH/g g/130 ml and acid can viscosity greater than, and in addition 6 cm ³ / 10 ingredient (190 °C, 2.16 kg weight) ISO 1133 MVR of hereinafter having provides aliphatic-aromatic polyester.

Polyester I is preferably were as follows.:

A-1) based on total weight of b and a component, aliphatic C₉-C₁₈ dicarboxylic acid or C₉-C₁₈ dicarboxylic acid derivatives 40 ∼ 70 weight %;

B-1) based on total weight of b and a component, terephthalic acid or terephthalic acid derivatives 30 ∼ 60 weight %;

C-1) based on total weight of b and a component, C₃-C₆ diol 98 ∼ 100 weight %;

D-1) based on total weight of b and a component, at least 3 extended 0 ∼ 2 weight %;

E-1) component based on total weight of a to e, chain extender 0 ∼ 2 weight %.

C₉-C₁₈ dicarboxylic (a-1 component) is preferably: azelaic, three basses it buys , the thread it buys balancer in a washing machine, C₁₈ 1, 18--temperature gas dicarboxylic acid or is dicarboxylic acid derivatives. three basses it buys a-1 component and its derivatives are useful in particular as. The aforementioned dicarboxylic [...] whereby the. available from renewable raw.

Acid and terephthalic acid (b) (a) aliphatic dicarboxylic acids or ester-forming derivatives as acid the glass can be in the form of. Useful ester-forming derivatives with a specifically di (C₁-C₆ alkyl) ester, for example, dimethyl, diethyl, di-n-propyl, diisopropyl, di-n-butyl, diisobutyl, di-t-butyl, di-n-pentyl, [...] or di-n-hexyl ester includes. Dicarboxylic anhydride is useful as well..

Dicarboxylic acid or their ester-forming derivatives with a individually or in mixture can be in the form of.

Generally, at the beginning of the polymerization, range of 1.0 ∼ 2 . 5:1 ratio of discrete to diol, preferably in the range of 1.3 ∼ 2 . 2:1 to discrete (a and b) of an (c) diol in proportion to. The excess for the hydrocyanation of in, it is dequeued during polymerization, eastern molar ratio is achieved approximately in the upon completion of the polymerization. "Molar copper approximately" discrete diol/range of 0.98 ∼ 1 . 0:1 rotation. ratio.

The (d) extended 3 at least useful, for example, 1, 1, 1-trimethylolpropane, 1, 1, 1-tree the methyl the ethane which comes , pentaerythritol, polyether triol, includes glycerol in particular. Component d has structural having a viscosity biodegradable polyester usable to form a high (i) can be. Melt flowable of a biodegradable polyester that easier to is processed, e.g. melt by solidification self-supporting films/sheets easier to pull. in that.

Chain extender (e) has multi-functional, in particular bifunctional isocyanate, isocyanurate, oxazoline, carboxylic acid anhydride or polyepoxide..

Terms "epoxide" the in particular styrene, acrylic acid ester and/or a methacrylic ester an epoxy based on a containing copolymer is understood. Epoxy a unit preferably glycidyl (metadata) is acrylate. A copolymer having glycidyl methacrylate content exceeds 20, more preferably exceeds 30, more more preferably greater than 50% weight copolymers in particular has been shown to be advantageous.. Said polymer epoxy equivalent weight of from 150 ∼ 3000 g/equivalent range of (EEW) is preferably, more preferably is in the range of 200 ∼ 500 g/equivalent. Weight average molecular weight of polymer (M_W) range of 2000 ∼ 25,000 preferably, is in the range of in particular 3000 ∼ 8000. Polymer number average molecular (M_n) range of 400 ∼ 6000 preferably, is in the range of in particular 1000 ∼ 4000. Polydispersity is 1.5 ∼ 5 are generally (Q). The aforementioned types of epoxy-containing copolymer, for example Joncryl^® ADR BASF Resins B under brand. V. Purchased from.. Joncryl^® ADR 4368 is useful in particular as chain extender.

Useful bifunctional chain extender includes compound has an (e):

Aromatic diisocyanate, andamide in particular 2, 4-diisocyanate, toluene 2, 6-diisocyanate, 2, 2 '-diphenylmethane diisocyanate, 2, 4' -diphenylmethane diisocyanate, 4, 4'-diphenylmethane diisocyanate, 1, 5-diisocyanate or xylylenediamine units [...] includes a carboxylic acid component with a diisocyanate. The, 2, 2 '-, 2, 4' -and in addition 4, 4'-diphenylmethane diisocyanate in particular preferably. Generally, as a mixture is carried out by using an acidulous latter diisocyanate. Diisocyanate in addition for example for capping isocyanate group relative to the total weight on the carriage, 5 weight % of maximum e.g. may include groups thione ureido.

Herein the terms "aliphatic diisocyanate" in particular 2 ∼ 20 carbon atoms, preferably 3 ∼ 12 carbon atoms a linear or branched alkylene diisocyanate or alkylene diisocyanate, e.g. 1, 6-hexamethylene diisocyanate, isophorone diisocyanate or methylene bis (4-ISO [...]). refers to. In particular a preferred fatty diisocyanate isophorone diisocyanate, in particular, is 1, 6-hexamethylene diisocyanate.

[...] Isotypes preferably 2 ∼ 20 carbon atoms, preferably 3 ∼ 12 carbon atoms alkylene diisocyanate or alkylene diisocyanate isocyanurate an aliphatic isocyanate group derived from, e.g. isophorone diisocyanate or methylene bis ([...] 4-isocyanate) includes. Alkylene diisocyanate can be a linear or branched wherein. N-hexamethylene diisocyanate, e.g. annular trimer, five quantity or more of oligomers based on a carboxylic acid component with a diisocyanate hexamethylene 1, 6-in particular preferably [...] Isotypes.

2, 2'-bis the jade company it became sleepy generally literature [Angew. Chem. Int. Ed. , Vol. 11 (1972), pp. 287-288]. obtained through process from. In particular a bis preferably the jade company it became sleepy R¹ a single coupled, (CH₂)_z alkylene to (the, z = 2, 3 or 4 randomly choosing), e.g. methylene, 1, 2-ethane diyl, 1, 3-propane diyl, 1, 2-propane. due polyphenylene or diyl. In particular a bis preferably the jade company it became sleepy 2, 2'-bis (2-oxazoline), bis (2-oxazolinyl) methane, 1, 2-bis (2-oxazolinyl) ethane, 1, 3-bis (2-oxazolinyl) propane or 1, 4-bis (2-oxazolinyl) butane, in particular 1, 4-bis (2-oxazolinyl) benzene, 1, 2-bis (2-oxazolinyl) benzene or 1, 3-bis (2-oxazolinyl) is benzene.

Polyester I number average molecular (M_n) range of 5000 ∼ 100,000 is generally, range of in particular 10,000 ∼ 75,000 g/mol, preferably in the approximate range of 15,000 ∼ 50,000 g/mol, is weight average molecular weight of (M_w) is generally range of 30,000 ∼ 300,000, preferably in the approximate range of 60,000 ∼ 200,000 g/mol, their M_w/M_n generally the ratio range of 1 ∼ 6, preferably is in the range of 2 ∼ 4. Viscosity water (50:50 w/w o-dichloro benzene/to phenol to when measured) 30 ∼ 450 g/mL and, preferably is in the range of 50 ∼ 400 g/mL. The melting range of 85 ∼ 150° C, preferably is in the range of 95 ∼ 140 °C.

Polyester I (MVR) is melt is generally capacity rate EN ISO 1133 (190 °C, 2.16 kg weight) 0.5 ∼ 10.0 cm ³ / 10 ingredient according to, 10/0.8 ∼ 5 cm ³ preferably 75/25 to 35.

Polyester II is following the next formed on:

A-2) based on total weight of b and a component, aliphatic C₄-C₆ dicarboxylic acid or C₄-C₆ dicarboxylic acid derivatives 40 ∼ 70 weight %;

B-2) based on total weight of b and a component, terephthalic acid or terephthalic acid derivatives 30 ∼ 60 weight %;

C-2) based on total weight of b and a component, C₃-C₆ diol 98 ∼ 100 weight %;

D-2) based on total weight of b and a component, at least 3 extended 0 ∼ 2 weight %;

E-2) component based on total weight of a to e, chain extender 0 ∼ 2 weight %.

Polyester II and polyester I essentially alkylpyridin dicarboxylic difference is (component a) chain length. A dicarboxylic acid component (a-1) (a-2) dicarboxylic acid component than a non-woven fabric is covered has short chain. C₄-C₆ dicarboxylic [...] succinic, glutaric, in particular preferably. refers to adipic acid. Dicarboxylic succinic and adipic acid obtained from renewable raw the whereby the.. Definition of remaining polyester II (b-2, c-2, e-2 and d-2) has defined presented to said polyester I (b-1, c-1, e-1 and d-1). corresponding to.

Polyester II the, for example said described. obtainable by method. Optionally, polyester II has chain extender (e) either with or without film manufactured by the obtainable without.. WO 2009/127556 is a publicly known techniques in said agent and is milder reaction conditions or more shortened response time (MVR) is melt are achieved in addition is capacity rate EN ISO 1133 (190 °C, 2.16 kg weight) for example, dependent to 10/0.5 ∼ 10.0 cm ³ can be implemented in ingredient.

Aromatic polyester portion II further particularly the invention (butylene adipate-co-terephthalate) is (PBAT). Commercial PBAT product, e.g. ecoflex^® F (BASF SE) and Eastar^® Bio, Origo-Bi^® (Novamont) is II polyester is desirable.

Of soil-improved biodegradability a polyester I is al3bc and alb12c2 forms a continuous phase or co-continuous phase and/or, the next mixing ratio of the polyester I to polyester II obtained in particular when, such.

Therefore, component based on ii and i, 50 ∼ 95 weight %, more preferably 65 ∼ 95 weight %, more more preferably 70 ∼ 90 weight % polyester I based on ii and i and components, 5 ∼ 50 weight %, more preferably 5 ∼ 35 weight %, more more preferably 10 ∼ 30 weight % polyester preferably polyester mixture including a II.

The claimed mixture ratio in, of the present invention the polymeric admixture is each individual components: polyester I and polyester II enhanced DIN EN ISO 17556 blades, presenting a biodegradable soil.

Generally, polyester I higher DIN EN ISO 17566 a polyester II has biodegradable soil. Surprisingly, component based on ii and i, 70 ∼ 90 weight % polyester i) based on ii and i and components, a weight 10 ∼ 30% including of the present invention the polymeric admixture is polyester I is decomposition executes more quickly than the executable code.

The addition of parts by weight of a polyester mixture of the present invention II guided further improved resistance relatively smaller cross. This effect based on total weight of the polymer blend and can have a, additional 5 ∼ 25 weight % of polylactic acid are charged using. significantly in particular polyester obtained from a mixture.

Melt capacity rate (MVR) is EN ISO 1133 (190 °C, 2.16 kg weight) polyester min. 10/0.5 ∼ 2.0 cm ³ according to I (MVR) is capacity rate and melt EN ISO 1133 (190 °C, 2.16 kg weight) polyester min. 10/2.5 ∼ 10.0 cm ³ according to II, based on the total weight of the polymer mix and, charging number 10 ∼ 35 weight %, such as, preferably calcium carbonate and excellent [...] polymer obtained from a mixture relatively smaller cross tongue tear strength and high resistance is is observed.

Polyester mixture thus additional components may include still. All additional ingredients including the polyester mixture including hereinafter. referred to as polymer mixture.

Calcium carbonate reference a total weight of the mixture of a polymer, e.g. by 10 ∼ 25 weight %, preferably 10 ∼ 20 weight %, more preferably 12 ∼ 18. can be used as weight %. Omya calcium bicarbonate in particular constitution: and proves to be suitable. Generally the average particle diameter of the calcium carbonate 0.5 ∼ 10 micrometers, preferably 1 ∼ 5, more preferably is in the range of 1 ∼ 2.5 micrometers.

the mask it grows relative to the total weight of the polymer mixture, e.g. by 3 ∼ 15 weight %, preferably 3 ∼ 10 weight %, more preferably 5 ∼ 8 can be used as weight %. [...] of Mondo Minerals in particular has been shown to be suitable for.. [...] 0.5 ∼ 10 generally average particle size, preferably 1 ∼ 8, more preferably 1 ∼ 3. micrometer.

Charging number calcium carbonate and talc in addition to. there may also be a rescale additional mineral: graphite, gypsum, carbon black, iron oxide, calcium chloride, kaolin, silicon dioxide (quartz), sodium carbonate, titanium dioxide, silicate, wollastonite, mica, montmorillonite, mineral fiber and nature fiber to produce.

Natural fibers are generally cellulose fibers, kenaf fiber, stromal fiber, .bark is potato or wood. Based on polymeric mixture is 1 ∼ 20 weight % may be used for.

Charging number including mineral is calcium carbonate, and talc in addition nano. may be used in the form of filler. In particular nano charging system -silicate sheet of a finely divided, preferably clay mineral, more preferably includes montmorillonite clay mineral and, 4 won the surface has at least one thereof ammonium salts and/or phosphonium salts and/or is modified by sulfonium salts. Natural montmorillonite and bentonite is clay mineral are desirable.

Combined both, the polyester mixture, for example based on a total weight of the mixture of polymer in 10 ∼ 35 weight % may include filler.

In a preferred embodiment, polyester mixture contains polylactic acid (PLA), polycaprolactone (PCL), polyhydroxyalkanoate, starch, or aliphatic dicarboxylic acid and aliphatic dihydroxy compound from selected from the group consisting of polyester polymers can be selected from.

Polylactic acid based on a total weight of the mixture of a polymer preferably 5 ∼ 25 weight %, more preferably 6 ∼ 12 is the addition of weight %.

Having the properties of range of a preferably use of PLA:

, EN ISO 1133 (190 °C, 2.16 kg weight) (MVR) capacity rate melt according to 0.5 ∼ 30 cm ³ / 10 ingredient, in particular 2 ∼ 40 cm ³ / 10 ingredient;

, Melting point less than 240 °C;

, Glass transition temperature (T_g) 55 °C exceeds;

, Less than 1000 PPM water content;

, Residual (lactide) monomer content less than 0.3%;

, Molecular weight exceeds 80,000 Daltons.

Examples of a preferred polylactic acid Ingeo^® 8052D, 6201D, 6202D, 6251D, 3051D, in particular Ingeo^® 4020D, 4032D or 4043D is polylactic acid (NatureWorks).

The claimed ratio to addition of PLA obtained from the polymer blend and can have a characteristics for playester film (feather and resistance relatively smaller cross tear strength) provides improvements significant added to. Easily flow, more starch is is a mixture of PLA can be used in addition.

Aliphatic polyester more preferably, the polymeric based on a total weight of the mixture of 5 ∼ 45 can be used as weight %.

In addition the terms "aliphatic polyester" aliphatic diol and aliphatic dicarboxylic acids, such as poly a polybutylene succinate (PBS), polybutylene adipate (PBA), polybutylene succinate adipate (PBSA), polybutylene succinate three Kate (PBSSe), polybutylene three Kate (PBSe) or polyester amide or polyester urethane substructure having polyester corresponding is realized as polyester formed from. Aliphatic polyester, Mitsubishi and Showa Highpolymers Company's PC, for example, all each is selling in the GSPla and Bionolle. An ECS is developed more recent WO-A 2010/034711 is described.

Based on the total weight of the polymer mix 10 ∼ 35% starch or polyhydroxyalkanoate of weight when added to polyester film are found is an effect analogous to a.

Poly [...] mainly of poly-4-hydroxy butyrate and described-3-hydroxy butyrate groups with [...] hydroxy 3-butyrate, ethylhexanoate hydroxy 3-is copolyester [...] and/or 3-hydroxy. Poly-3-hydroxy butyrate, for example all of PHB Industrial Biocycle^® Tianan and under all of Enmat^®. available under.

Poly (3-hydroxy butyrate-co-4-hydroxy butyrate) is publicly known from the in particular Metabolix. The all Mirel^® is payment and.

Poly (3-hydroxy butyrate-co-3-hydroxy ethylhexanoate) the P is publicly known from Kaneka or & G. Poly (3-hydroxy butyrate-co-3-hydroxy ethylhexanoate) generates and transmits a generic of poly [...] based on 1 ∼ 20 molar %, preferably of 3 ∼ 15 molar % ethylhexanoate hydroxy 3-has a. Molecular weight polyhydroxyalkanoates (M_w) is generally range of 100,000 ∼ 1,000,000, preferably is in the range of 300,000 ∼ 600,000.

In addition the starch the [...] which understood; ten calcinations the surface modified (EP-A 937120, EP-A 947559, EP-A 965615 reference) plasticizers in addition to effect are connected, e.g. glycerol, sorbitol or water, etc. (EP-A 539 541, EP-A 575 349, EP-A 652 910 reference) by which means that a ten calcinations is understood.

The polyester mixture of the present invention additional additive is publicly known to one skilled in the art, for example plastic a material acids, are included in an amount our techniques, e.g. stabilizer; forming the nuclei number; number and a releasing lubricant, e.g. stearate (in particular, calcium stearate); number plasticizer, e.g., citric acid ester having a (in particular, tree butyl acetyl citrate), [...] ester, e.g. triacetyl glycerol or ethylene glycol derivatives, surfactant, such as poly polysorbate, palmitate or [...] ; wax, e.g. erucamide, isostearamide or [...] , [...] or [...] ester; has static electricity, UV absorbent; UV stabilizer; antifogging ; or dyes may further comprise the. Additive 0 ∼ 2 weight % based on the polyester mixture of the present invention, is carried out by using an acidulous at a concentration of in particular 0.1 ∼ 2 weight %. Plasticizer in polyester mixture of the present invention may be present at 0.1 ∼ 10 weight %.

UV absorbent include, based on the total weight of the polymer mix 0.1 ∼ 1.5 weight %, more preferably 0.5 ∼ 1.2 weight % of 2-(4, 6-bis-biphenyl-4-one -1, 3, 5-triazine-2-one)-5-(2-ethyl-(n)-cyclohexyloxy) preferably phenols. Said UV absorbent (vi) preparation and properties is publicly known from WO 2009/071475. The herein reference, become manifest in WO 2009/071475 is citation.

Polymer mixture, in particular including mixture of polylactic acid vi to i component in addition 0 ∼ 1 weight % based on total weight of, preferably 0.01 ∼ 0.8 weight %, more preferably 0.05 ∼ 0.5% of weight, styrene, acrylic acid ester and/or a methacrylic ester-based epoxy-containing copolymer may comprise an. Epoxy a unit preferably glycidyl (metadata) acrylate is exceeds. 20 weight %, more preferably exceeds 30 weight %, more more preferably greater than 50 weight % copolymer of glycidyl methacrylate copolymers having is in particular advantageous found to of wet liquid to flow down. Said polymer epoxy equivalent weight of from 150 ∼ 3000 g/equivalent range of (EEW) is preferably, more preferably is in the range of 200 ∼ 500 g/equivalent. Weight average molecular weight of polymer (M_W) range of 2000 ∼ 25,000 preferably, is in the range of in particular 3000 ∼ 8000. Polymer number average molecular weight (M_n) range of 400 ∼ 6000 preferably, is in the range of in particular 1000 ∼ 4000. Polydispersity (Q) are generally 1.5 ∼ 5 is in the range of. The aforementioned types of epoxy-containing copolymer, for example Joncryl^® ADR BASF Resins B under brand. V. Purchased from.. Joncryl^® ADR 4368 is in particular and down. The v component in particular PLA-containing polyester mixture may be used for.

The following ingredients a preferred embodiment relates to biodegradable polyester mixture of:

I) based on ii and i component, polyester I 45 ∼ 95 weight %, preferably 50 ∼ 95 weight %, more preferably 65 ∼ 95 weight %, more more preferably 70 ∼ 90 weight %;

Ii) based on ii and i component, polyester II 5 ∼ 55 weight %, preferably 5 ∼ 50 weight %, more preferably 5 ∼ 35 weight %, more more preferably 10 ∼ 30 weight %;

Iii) based on total weight of vi to i component, calcium carbonate 10 ∼ 25 weight %;

Iv) based on total weight of vi to i component, talc 3 ∼ 15 weight %, preferably 3 ∼ 10 weight %;

V) based on total weight of vi to i component, polylactic acid, polycaprolactone, polyhydroxyalkanoate, starch, or aliphatic dicarboxylic acid and aliphatic dihydroxy compound made from selected from the group consisting of polyester at least one polymer 0 ∼ 50 weight %, preferably 5 ∼ 45 weight % ; in particular preferably based on total weight of vi to i component, polylactic acid 5 ∼ 25 weight % range;

Vi) of weight based on total weight of vi to i component, at least one stabilizer, forming the nuclei number, number and a releasing lubricant, surfactant, wax, has static electricity, antifogging, dye, pigment, UV absorbent, UV stabilizer or other plastic additive, in particular UV-absorbing agent preferably 2-(4, 6-bis-biphenyl-4-one -1, 3, 5-triazine-2-one)-5-(2-ethyl-(n)-cyclohexyloxy) phenol 0 ∼ 2 weight %, preferably 0.1 ∼ 1.5 weight %.

In the case of the present purpose of the invention, the polymeric admixture is, according to DIN EN ISO 17556, 2 years the degree of percentage of biodegradable in a length different from each 90%, "biodegradable in the soil in" characterized satisfy an. Used and tests the toxicological environment of a product limited heavy ([Vicotte ' certification "ok biodegradable soil" s] reference) additional conformance to ., it is necessary to have. The biodegradable an aerobic to the DMAC in the soil in a respiratory oxygen during requirements or (wholly or relatively with cellulose) determining the amount of carbon dioxide generated can be measured by.

Biodegradable is capable of being isolated from the effects polyester or mixture is validated the identical spacing possible in certification and carbon dioxide, is converted into biomass and copyright 2000. Such a decomposition of a enzymatically, hydrolytically, oxide and/or electromagnetic radiation, e.g. by the action of UV radiation can be embodiment, most microorganism, such as bacterial, yeast, fungi and birds (algae) by action of a can be caused.

The biodegradable in terms multipotent compost, for example, are stored during predetermined time is mixed with compost polyester is quantified by a.. For example (ISO 14855 that reference) according to DIN EN 13432, compost through compost aged beverage is during CO₂-permit airflow therapeuticals aged beverage is the compost embodiment a prescribed temperature program. Wherein the biodegradable, biodegradable percentage of degree as, (sample without compost emitted by CO₂ co-after) from the sample order CO₂ emission to sample by releasable CO₂ maximum amount of (is computed from carbon content of the sample) is defined through ratio of. Biodegradable polyester/polyester mixture conventional degradation it is apparent that after for composting comprising the shortest only signs, e.g. fungal growth, copyright 2001 (holing) clipper and bottom crack. Biodegradable measuring other method for example ASTM D 6400-4 and ASTM D 5338 is described.

The biodegradable polyester mixture, mentioned in the initial extra work non it did not include and includes oriented in, metallized or SiOx non it did not include and includes coating, network and woven, tubular film, chill roll film. are useful for the manufacture of (chill roll film).

I component) to vi) including a, initially defined polyester mixture a tubular film useful in particular to (stretch wrapping film) film wrapping and stretching. Wherein set back (bottom gusset bag) for producing a sedated bottom relate application a, side core back (side seam bag), grip hole carrier bag (grip hole carrier bag), shrinkage level or best type carrier bag, inliner, sprue the cores, for refrigeration, back, composting back, agricultural film (mulching film), food packaging film bag, closure film (transparent or opaque) strippable, weldable closure film (transparent or opaque), sausage casing, salad film, and plant fruit, meat and fish a keep-nozzle tap (keep-fresh film) film (elongated wrapping film), film wrapping elongated material made pellets, poles are set on the film, [...] , confectionery bar and [...] for CPU packaging film, dairy packaging (yogurt, such as cream), fruits and for a plant strippable lid film, sausage and cheese for sidestream smoke is packing semi-rigid.

I component) to vi) for including polyester mixture that are extruded from single or multi tubular, or press film iii component) to v)-free mixture further make sharper when extruded from a high tensile strength has (EN ISO 6383-2:2004 to it follows). Tongue tear strength rollback or waste bio for example in particular of a thin-walled carrier bag (e.g., best type carrier bag, fruit back) a thin (tubular) for field of film is an important property very of the product at. In addition a tear strength tongue agricultural mulching film in. very important for the class.

I component) to vi) of the polyester mixture including vent the soil for example in addition, foam, such as a container in for Young trees or flowerpot useful applications.

UV absorbent (vi) 2-(4, 6-bis-biphenyl-4-one -1, 3, 5-triazine-2-one)-5-(2-ethyl-(n)-cyclohexyloxy) phenol class outdoor polyester film has including, e.g. building structure, in particular agricultural article is carried out by using an acidulous more applications conductive dopants are in particular. The agricultural mulching film, covering films, silo film, slit film tape, woven, nonwoven fabric, clip, textile, chamber, net, secondary packaging, e.g. peat, fertilizer, cement, crop protection agents, sprue the cores is for an apparatus for flowerpot out seed or plant.

Agricultural article is generally weather and wind, in particular solar are subjected to a. The life SPAN of the specified in the field in order to ensure should stabilized.

Performance related measurements to:

Molecular weight of aromatic polyester portion (M_n and M_w) is, [...] hexa for elution (HFIP) + 0.05 weight % of potassium trifluoro-acetate has been determined according to the DIN 55672-1. Distributed is small and those of the standard polymethyl methacrylates been used for correction. DIN 53728 water viscosity (January 1985 part 3) has been determined according to capillary viscometer. M-II type Ubbelohde micro viscometer are used. The solvent used at the 50/50 (w/w) phenol/o-dichloro benzene was.

MVR the method described (EN ISO 1133 (190 °C, 2.16 kg weight) of detailed/need associated with embodiment) been used to measure the out-of.

Tongue tear strength really radius ProTear the device using the same (43 mm tear length) EN ISO 6383-2 on specimen for testing: 2004 Elmendorf according to has been determined through tests.

Elastic modulus and and an elongation at break about 30 micro m on blown film thickness of tensile tester to ISO 527-3 has been determined.

30 micro m ASTM D 1709 dart drop test method A applied to a film to a thickness decreasing a contact area between dart on the film penetrating which it was determined that the necessary maximum energy. Dropped film-like from a predetermined height said energy and 50% weight dart for inducing failure is displayed in side of (g) (ASTM in indent for reference).

Biodegradable polyester mixture and comparison DIN EN ISO 17556 (1 December 2012) the decomposition rate of the mixture has been determined according to:

During aerobic biodegradable, carbon dioxide by organism activity substrate, and been converted into biomass. The method test described herein in the soil in quantitative biodegradable polymer sample allows tracking.

Vaccination comprises thereby removing a constituent component rough body 2 mm after was made up of a blend of natural soil. Vaccination of soil water content is adjusted to maximum mixture was 40 ∼ 60% of influence. The pH 6 ∼ 8, was 7.2 more specifically. Polymer sample (powder) using glucose water (1 g polymer per 500 g soil) installed to the reaction, is mixed directly with the. Reactor solution of potassium hydroxide to the absorption of carbon dioxide electricity caused upon having a container as well as with water are in addition in a dried from the soil was containing container. 25 °C and hermetically sealed reactor goes was lower and this adamantane is stored at.

The amount of carbon dioxide, generated for has been determined by adequately an. After every proper, ground reproducing solution of potassium hydroxide and of, visitor is checked through a wet if necessary.

Amount of carbon dioxide, generated for a biodegradable from the bill. Before, only background discharge (polymer sample that does not include generating carbon dioxide of innoculation: blank) in a receiving node to permit a polymer sample total organic carbon (TOC) content up, along a guide rail to of knowing which.

I. The raw materials used:

I-1 poly (polybutylene three Kate -co-terephthalate)

Initially dimethyl terephthalate (70.11 kg), 1, 4-butanediol (90.00 kg), glycerol (242.00 g), tetra butyl [...] (TBOT) (260.00 g) and three basses it buys (82.35 kg) poured in tank 250 L of the device to nitrogen purging section. Maximum internal temperature was 200 °C to methanol is distilled to. After cooled to about 160 °C, 250 °C maximum internal temperature mixture from a group of a distillation and condensation visitor is checked through a (< 5 mbar). Won a viscosity was cooled to room temperature then. Viscosity of polyester pre was g/80 ml water.

[...] Rheocord 9000 Haake Rheomix 600 is with chain extended is performed for all the in. Pre 220 °C in polyester and melt melt the polyester I based on the HDI of 0.9 weight % mixing the blended a (hexa consequently diisocyanate). Torque (torque) is observed to the for tracking is in progress. Achieve maximum torque a reactor after mixture to cool and, removing the biodegradable polyester are chain extended for characterizing and was used to. Polyester i-1 the MVR is 1.0 cm ³ / 10 was ingredient.

I-2 poly (polybutylene three Kate -co-terephthalate)

In the embodiment 1 polyester pre similar produced and 0.3%, by weight of the water HDI (hexamethylene diisocyanate consequently) and a mixed. The MVR is 10/4.6 cm ³ i-2 polyester was ingredient.

Ii-1 poly (butylene adipate-co-terephthalate)

To produce polyester ii-1, 87.3 kg of dimethyl terephthalate, 80.3 kg of adipic acid, 1, 4-butanediol and 0.2 kg 117 kg of glycerol and 0.028 kg [...] butyl its mixing and together (TBOT), the molar ratio of between acid component and alcohol component was 1.30. Reaction mixture, is heated to a temperature of 180 °C 6 reacted at a temperature period. Then 240 °C temperature 3 dihydroxy compound as excess of and over time the vacuum distillation. After, in a carboxylic acid component with a diisocyanate hexamethylene of 0.9 kg 240 °C time 1 the invention also provides for a metered a gradually.

The melting point of polyester thus obtained and 119 °C ii-1 10/3.1 cm ³ the MVR was ingredient.

Iii-1) type of OMYA "Omyafilm 764 OM" method of calcium carbonate of 0.1

Iv-1) type of Mondo Minerals "Microtalk IT extra" of talc

V-1) Natureworks LLC of polylactic acid (PLA) Ingeo^® 4043D

V-2) Natureworks LLC of polylactic acid (PLA) Ingeo^® 8052D

Vi-1) batch A: polyester ii-1 Joncryl ADR 4368 20 of weight during % master batch (for the manufacture EP A 1838784 reference)

II. Compound

In the embodiment 1 to 4 and comparison e.g. a polymer mixture of V3a to V1 to table 1 and 2 not to be infiltrated to the quantitative recorded on L/D 44 and 11 a having areas that are was compatible for on extruder Coperion ZSK40 MC. Barrel temperature was 240 ∼ 270 °C 180 ∼ 210 °C and melt temperature. Component i-1, ii-1, v-1 vi-1 and cooling supply for zone 1, component 8 zone for iii-1 supply laterally, a laterally 5 zone for iv-1 component. Screw speed, throughput and all other process parameters to compounds was properly optimized.

III. Film manufacturing:

Blown film line

Extension with screws 30 mm which smooth supply section and length 25 D 3-zone screw with the operating film lines tubular to the twin screw extruder. Supply section stay below the maximum specified cross-about throughput the cooled to-water h/10 ∼ 15 kg. Melt temperature is 170 ∼ 190 °C got temperature zone. A die was range of 160 ∼ 180 °C. Die diameter and 80 mm, die width ratio was 0.8 mm (blow-up) up to the blow metal. 3.5:1 tubular distribution of heat to the film about 440 mm (lay-flat)-flat of width induced.

IV. Consequently

Tests, charging polyester II (reference V2) is very good relatively smaller cross resistance resistance, whilst (dart drop), filled with polyester I (reference V3) tear strength, and to a tongue which has highly excellent exhibits have. Polyester mixture of the present invention (in the embodiment 1 to 4 reference) tongue very excellent resistance relatively smaller cross and good tear strength has (dart drop).

Polyester I a polyester II has degradable soil liquid, therefore allowing for more. Further surprising if the regular time and polyester II soil mixture of polyester I of the present invention to the polyester I is of being quickly disassembled 1.8 than plurality of distinct 2 degradable soil of better is is that degradable soil.