CN103547624A - Molded articles of polymer-wax compositions - Google Patents

Abstract

Molded articles formed from compositions comprising thermoplastic polymers and waxes are disclosed, where the wax is dispersed throughout the thermoplastic polymer.

Description

The moulded parts of polymkeric substance-Wax composition

Technical field

The present invention relates to moulded parts, described moulded parts is formed by the composition of the uniform mixture that comprises thermoplastic polymer and wax.

Background technology

Thermoplastic polymer is for multiple application.Yet, to compare with other polymer material, thermoplastic polymer has extra challenge as polypropylene and polyethylene, especially aspect fiber formation for example.This is as stricter in the requirement of film than other form of preparation because prepare material and the processing requirement of fiber.For preparing fiber, with respect to other polymer processing method, polymer melt flow characteristic depends on physics and the rheological property of material more.And, to compare with other method, in fiber preparation, partial cut/rate of extension and shearing rate are larger, and are spinning ultra-fine fibre, and the little defect in melt, slight discordance or phase uncompatibility are that commericially feasible method institute is unacceptable.In addition, the thermoplastic polymer of high molecular is not easy or can not be effectively spun into fine-fibered.If their availability and potential improved strength, expectation provides easily a kind of and the approach of this type of high-molecular weight polymer of effectively weaving.

Most of thermoplastic polymers are if polyethylene, polypropylene and polyethylene terephthalate for example, derived from monomer (being respectively ethene, propylene and terephthalic acid), and described monomer derives from non-renewable fossil base resource (for example oil, Sweet natural gas and coal).Therefore, the price of these resources and availability finally have significant impact to the price of these polymkeric substance.Along with the international price of these resources raises rapidly, by the price of the material of these polymers, raise rapidly.In addition, many human consumers only go out dislike derived from the product expression of petroleum chemicals to purchase, and described petroleum chemicals is non-renewable fossil base resource.Other human consumers may have negative impression to the product derived from petroleum chemicals, think that " non-natural " or environment are disagreeableness.

Thermoplastic polymer is conventionally incompatible with additive (such as wax, pigment, organic dye, spices etc.) or have not good compatibility with it, and described additive may contribute to reduce the consumption of these polymkeric substance in downstream product manufacture originally.Up to now, this area not yet effectively solves and how in the production of common goods of using these polymkeric substance, to reduce the amount derived from the thermoplastic polymer of non-renewable fossil base resource.Therefore, expectation solves this shortcoming.Existing field makes polypropylene and additive be mixed to form polynuclear plane, and wherein polypropylene is minor component.These polynuclear planes are objects behind, are included in after forming structure and remove subsequently or extract recyclable materials.United States Patent (USP) 3,093,612 have described the combination of polypropylene and multiple lipid acid, and wherein lipid acid is removed.Science article J.Apply.Polym.Sci82(1) 169-177 page (2001) is open, to polypropylene, use thinner to be separated with thermic, to produce open and larger polynuclear plane, but polymer ratio is low, wherein subsequently thinner is removed from final structure.Science article J.Apply.Polym.Sci105(4) 2000-2007 page (2007) is separated via thermic, with dibutyl phthalate and soybean oil blend and polypropylene minor component, prepares microporous membrane.Thinner is removed in final structure.Science article Journal of Membrane Science108(1-2) 25-36 page (1995) is used soybean oil and polypropylene miser, and adopt the thermic that produces desired membrane structure to be separated, prepare hollow fiber microporous membrane, wherein polypropylene is minor component.Thinner is removed in final structure.In all these situations, described thinner is all removed, to obtain final structure.These structures were oiliness before removing thinner, and excessive thinner produces very open microvoid structure, had the hole dimension of >10 μ m.

The moulded parts that need to be made by the composition of thermoplastic polymer, described composition allows to use the Nonrenewable resources sill of higher molecular weight and/or decrement, and/or mixes other additive as spices and dyestuff.Another need to be, the moulded parts that derives from composition exists sends the additive of recyclable materials in the finished product, and can make other additive can join in final structure as dyestuff and spices.

Summary of the invention

In one aspect, the present invention relates to the moulded parts that comprises composition, the uniform mixture that described composition comprises thermoplastic polymer and wax, described wax has the fusing point that is greater than 25 ℃.Described wax can have the fusing point lower than thermoplastic polymer melt temperature.Described moulded parts can be bottle, container, tampon application device or medicine is inserted into the form of the application device of body vestibule.Moulded parts can be by comprising that the method for composition makes described in compression moulding.Moulded parts can be by comprising that the method for extruding described composition makes.Moulded parts can be by comprising that the method for composition makes described in blowing.

Thermoplastic polymer can comprise polyolefine, polyester, polymeric amide, their multipolymer or their combination.Thermoplastic polymer is optional from polypropylene, polyethylene, polypropylene copolymer, polyethylene and ethylene copolymers, polyethylene terephthalate, polybutylene terephthalate, poly(lactic acid), polyhydroxy-alkanoates, polymeric amide-6, polymeric amide-6, and 6 and their combination.Can use melt-flow index to be greater than 0.5g/10min or be greater than the polypropylene of 5g/10min.Polypropylene can have about 20kDa to the weight-average molecular weight of about 700kDa.Thermoplastic polymer can be derived from recyclable organism-based raw material source as biological polyethylene or biological polypropylene, and/or can be can recirculation resource as human consumer after using can recirculation resource.

Described wax can be based on described composition gross weight meter approximately 5 % by weight to approximately 40 % by weight, approximately 8 % by weight are to approximately 30 % by weight, or approximately 10 % by weight to the amount of approximately 20 % by weight is present in described composition.Described wax can comprise lipid, and described lipid can be selected from monoglyceride, triglyceride, triglyceride level, lipid acid, fatty alcohol, esterified fatty acid, epoxidation lipid, maleinization lipid, hydrogenation lipid, the Synolac derived from lipid, sucrose polyester or their combination.Described wax can comprise mineral wax, as straight-chain paraffin, branched alkane or their combination.The object lesson of mineral wax is paraffin and Vaseline.Described wax can be selected from hydrogenated soybean oil, partially hydrogenated soybean oil, epoxidised soybean oil, maleinization soybean oil, Tristearoylglycerol, tripalmitin, 1, 2-bis-palmitinic acid olein, 1, 3-bis-palmitinic acid olein, l-palmitinic acid-3-stearic acid-2-olein, l-palmitinic acid-2-stearic acid-3-olein, 2-palmitinic acid-l-stearic acid-3-olein, 1, 2-bis-palmitinic acid linolein, 1, 2-distearyl acid-olein, 1, 3-distearyl acid-olein, trimyristin, trilaurin, capric acid, caproic acid, sad, lauric acid, tetradecanoic acid, palmitinic acid, stearic acid, and their combination.Described wax can be selected from hydrogenated vegetable oil, partially hydrogenated vegetable oil, epoxidized vegetable oil, maleinization vegetables oil.The object lesson of this type of vegetables oil comprises soybean oil, Semen Maydis oil, canola oil and palm-kernel oil.

Described wax dispersibles in thermoplastic polymer, described wax is had in thermoplastic polymer and be less than 10 μ m, is less than 5 μ m, is less than 1 μ m, or is less than the drop size of 500nm.Described wax can be recyclable materials.

Composition disclosed herein also can comprise additive.Described additive can be oil-soluble or oil-dispersing property.The example of additive comprises spices, dyestuff, pigment, tensio-active agent, nano particle, nucleator, finings, static inhibitor, filler or their combination.

On the other hand, provide and prepared the method for composition as disclosed herein, described method comprises a) mixes to form mixture by molten state thermoplastic polymer with the wax that is similarly molten state; And b) in 10 seconds or shorter time, described mixture is cooled to the temperature that is equal to or less than thermoplastic polymer solidification value, to form described composition.The method of preparing composition can comprise a) thermoplastic polymer with formation melting by thermoplastic polymer melting; B) thermoplastic polymer of melting and wax are mixed to form mixture; And c) in 10 seconds or shorter time, described mixture is cooled to the temperature that is equal to or less than thermoplastic polymer solidification value.Mixing can be greater than 10s ^-1, or approximately 30 to about 100s ^-1shearing rate under.Mixture can be cooled to 50 ℃ or lower temperature in 10 seconds or shorter time.Can be by described composition granulation.Can be after cooling mixture, or before cooling mixture or simultaneously, carry out granulation.Can use forcing machine composition as described in list or twin screw extruder preparation.Alternatively, the method for preparing composition can comprise a) thermoplastic polymer melting to form the thermoplastic polymer of melting; B) thermoplastic polymer of melting and wax are mixed to form mixture; And c) for example extrude described molten mixture, to form final structure, molded parts.

Accompanying drawing explanation

For the comprehend disclosure, to following embodiment and wherein accompanying drawing reference should be provided:

Fig. 1 illustrates the result with jagged cantilever-type impact strength test to the composition disclosed herein of example 44-51.

Fig. 2 illustrates unmodified polypropylene (A) and example 1-3(B-D disclosed herein) scanning electron microscope (SEM) image of composition.

Although disclosure invention may have various forms of embodiment, illustrated (and will be described below) is specific embodiments of the invention in the accompanying drawings, it should be understood that, it is illustrative that the disclosure is intended to, and is not intended to the present invention to be limited to described herein and illustrated specific embodiment.

Embodiment

Moulded parts disclosed herein is made by the composition of the uniform mixture of thermoplastic polymer and wax.Term " uniform mixture " refers to the physical relation of described wax and thermoplastic polymer, and wherein said wax is scattered in described thermoplastic polymer.The drop size of wax described in thermoplastic polymer is the parameter of the described wax of indication degree of scatter in thermoplastic polymer.Drop size is less, and the dispersity of described wax in thermoplastic polymer is higher, and drop size is larger, and the dispersity of described wax in thermoplastic polymer is lower.As used herein, term " mixture " refers to uniform mixture of the present invention, rather than reference material mixture " mixture " in broad sense more.

The drop size of wax described in thermoplastic polymer is less than 10 μ m, and can be less than 5 μ m, is less than 1 μ m, or is less than 500nm.Other expection drop size that is scattered in described wax in thermoplastic polymer comprises and is less than 9.5 μ m, is less than 9 μ m, is less than 8.5 μ m, is less than 8 μ m, be less than 7.5 μ m, be less than 7 μ m, be less than 6.5 μ m, be less than 6 μ m, be less than 5.5 μ m, be less than 4.5 μ m, be less than 4 μ m, be less than 3.5 μ m, be less than 3 μ m, be less than 2.5 μ m, be less than 2 μ m, be less than 1.5 μ m, be less than 900nm, be less than 800nm, be less than 700nm, be less than 600nm, be less than 400nm, be less than 300nm, and be less than 200nm.

The drop size of described wax can, indirectly by measuring the void size of described wax being removed from described composition in rear thermoplastic polymer, be recorded by scanning electron microscope (SEM).The removal of described wax was carried out conventionally before SEM imaging, because described wax is incompatible with SEM imaging technique.Therefore, the space being recorded by SEM imaging is relevant to the drop size of wax described in composition, as shown in Figure 2.

Realizing described wax suitable a kind of illustrative methods of disperseing in thermoplastic polymer is that the thermoplastic polymer of molten state is mixed with described wax.For example, by thermoplastic polymer melting (being exposed at the temperature higher than thermoplastic polymer solidification value), so that the thermoplastic polymer of melting to be provided, and mix with wax.Thermoplastic polymer can melting before adding described wax, or can melting under the existence of wax.Should be appreciated that when polymer melt, wax is also molten state.Hereinafter, term wax can represent the component for solid (optional crystallization) state or molten state according to temperature.Do not need wax to solidify at the temperature of polymer cure.For example, polypropylene is hypocrystalline solid at 90 ℃, and described temperature is higher than the fusing point of many waxes.

10s can be for example greater than ^-1shearing rate under, mixture heat thermoplastic polymer and wax.The shearing rate of other expection comprises and is greater than 10, approximately 15 to approximately 1000, approximately 20 to approximately 200, or 500s at the most ^{- 1}.The shearing rate of mixing is higher, and the dispersity of described wax in composition disclosed herein is larger.Therefore, during forming at composition, select specific shearing rate, can control dispersity.

Can use any mechanism that required shearing rate can be provided, mix described wax and molten thermoplastic polymers, obtain composition as disclosed herein.The non-limitative example of mechanism comprises that agitator for example, as Haake batch agitator and forcing machine (list or twin screw extruder).

Then the mixture of molten thermoplastic polymers and wax rapid (being for example less than in 10 seconds) is cooled to the temperature lower than thermoplastic polymer solidification value.Described mixture can be cooled to and be less than 100 ℃, is less than 75 ℃, is less than 50 ℃, is less than 40 ℃, is less than 30 ℃, is less than 20 ℃, is less than 15 ℃, is less than 10 ℃, or to approximately 0 ℃ to approximately 30 ℃, approximately 0 ℃ to approximately 20 ℃, or the temperature of approximately 0 ℃ to approximately 10 ℃.For example, described mixture can be positioned over to cryogenic liquid (for example described liquid for or lower than the cooling temperature of described mixture).Described liquid can be water.

thermoplastic polymer

For the thermoplastic polymer of disclosed composition, be then crystallization or sclerosis when cooling of melting, but when further heating the polymkeric substance of melting again.Be applicable to thermoplastic polymer herein and there are approximately 60 ℃ to approximately 300 ℃, approximately 80 ℃ to approximately 250 ℃, or the melt temperature of 100 ℃ to 215 ℃ (being also called as solidification value).

The molecular weight of thermoplastic polymer is enough high, so that can produce entanglement between polymer molecule, but enough low to become melt-processable.Do not compare with there is no oily composition, described oil is joined in described composition, allow thermoplastic polymer that composition comprises high molecular more to make moulded parts.Therefore, suitable thermoplastic polymer can have about 1000kDa or lower, and about 5kDa is to about 800kDa, and about 10kDa is to about 700kDa, or about 20kDa is to the weight-average molecular weight of about 400kDa.

Thermoplastic polymer can be derived from renewable resources or fossil mineral and oil.Thermoplastic polymer derived from renewable resources is bio-based, the ethene and the propylene monomer that for example for the preparation of polypropylene and poly biology, make.These material properties are substantially identical with fossil base product equivalent, and different is the existence of carbon-14 in thermoplastic polymer.Root Ju cost and availability, can mix renewable base and fossil based thermoplastic polymer in the present invention with any ratio.Also can be separately or with combinations of thermoplastic polymers renewable and/or that fossil is derivative use can recirculation thermoplastic polymer.Thermoplastic polymer that can recirculation can be before mixing by preconditioned to remove any useless pollutent, or can mix and extrusion during use them, and just stay in mixture.These pollutents can comprise other polymkeric substance, paper pulp, pigment, mineral compound, the organic compound of trace and conventionally be present in other additive in processable polymer composition.Described pollutent should adversely not affect the final serviceability of mixture, for example, during fiber sprinning process, cause spinning fracture.

Suitable thermoplastic polymer generally comprises polyolefine, polyester, polymeric amide, their multipolymer and their combination.Thermoplastic polymer is optional from polypropylene, polyethylene, polypropylene copolymer, polyethylene and ethylene copolymers, polyethylene terephthalate, polybutylene terephthalate, poly(lactic acid), polyhydroxy-alkanoates, polymeric amide-6, polymeric amide-6, and 6 and their combination.

Yet more particularly, thermoplastic polymer preferably includes polyolefine as polyethylene or its multipolymer, comprise low density, high-density, linea low density or ultra-low density polyethylene, make density of pe between 0.90 gram/cc to 0.97 gram/cc, most preferably in the scope between 0.92 and 0.95 gram/cc.Poly density is measured by amount and the type of branching, and depends on polymerization technique and comonomer type.Also can use polypropylene and/or polypropylene copolymer, comprise Atactic Polypropelene; Isotactic polyprophlene, syndiotactic polypropylene and their combination.Can use polypropylene copolymer, ethene especially, to reduce melt temperature and to improve performance.Can adopt metallocene and Ziegler-Natta catalyst system to make these polyacrylic polymers.These polypropylene and polyethylene composition can be mixed to optimize final use properties.Polybutene is also available polyolefine.

Other suitable polymkeric substance comprises polymeric amide or its multipolymer, as nylon 6, nylon 11, nylon 12, nylon 46, nylon 66; Polyester or its multipolymer, as maleic anhydride polypropylene copolymer, polyethylene terephthalate; Olefin carboxylic acid's multipolymer, as ethylene/acrylic acid copolymer, ethene/maleic acid, ethylene/methacrylic acid, ethylene/vinyl acetate or their combination; Polyacrylic ester, polymethacrylate and their multipolymer are as poly-(methyl methacrylate).Other non-limitative example of polymkeric substance comprises polycarbonate, polyvinyl acetate, polyoxymethylene, styrol copolymer, polyacrylic ester, polymethacrylate, poly-(methyl methacrylate), polystyrene/methylmethacrylate copolymer, polyimide, polysulfones or their combination.In certain embodiments, thermoplastic polymer comprises polypropylene, polyethylene, polymeric amide, polyvinyl alcohol, ethylene acrylic, polyolefine polymers of carboxylic acid, polyester and their combination.

Yet more particularly,, thermoplastic polymer preferably includes polyolefine as polyethylene or its multipolymer, comprises low density, high-density, linea low density or ultra-low density polyethylene, polypropylene or their multipolymer, comprises Atactic Polypropelene; Isotactic polyprophlene, metallocene isotactic polypropylene, polybutene or their multipolymer; Polymeric amide or their multipolymer, as nylon 6, nylon 11, nylon 12, nylon 46, nylon 66; Polyester or their multipolymer, as maleic anhydride polypropylene copolymer, polyethylene terephthalate; Olefin carboxylic acid's multipolymer, as ethylene/acrylic acid copolymer, ethene/maleic acid, ethylene/methacrylic acid, ethylene/vinyl acetate or their combination; Polyacrylic ester, polymethacrylate and their multipolymer are as poly-(methyl methacrylate).Other non-limitative example of polymkeric substance comprises polycarbonate, polyvinyl acetate, polyoxymethylene, styrol copolymer, polyacrylic ester, polymethacrylate, poly-(methyl methacrylate), polystyrene/methylmethacrylate copolymer, polyimide, polysulfones or their combination.In certain embodiments, thermoplastic polymer comprises polypropylene, polyethylene, polymeric amide, polyvinyl alcohol, ethylene acrylic, polyolefine polymers of carboxylic acid, polyester and their combination.

Biodegradable thermoplastic polymer is also expected for herein.When biodegradable material is embedded in undergroundly or while in other words contacting microorganism (be included under the envrionment conditions that is conducive to microorganism growth and contact), biodegradable material is easy to be digested as mould, fungus and bacterium by microorganism.Suitable biodegradable polymkeric substance also comprises employing aerobic or anaerobic digestion method or those biodegradable materials of degraded by environment owing to being exposed to environmental element as sunlight, rainwater, moisture, wind, temperature etc.Biodegradable thermoplastic polymer can be used alone, or uses with array configuration biodegradable or not biodegradable polymkeric substance.Biodegradable polymkeric substance comprises the polyester that comprises aliphatic component.Wherein polyester is the ester polycondensate that comprises aliphatic composition and poly-(hydroxycarboxylic acid).Ester polycondensate comprises that dicarboxylic acid/diol aliphatic polyester is as poly-succsinic acid fourth diester, poly-succsinic acid copolymerization hexanodioic acid fourth diester, and aliphatic series/aromatic polyester is as the terpolymer of being made by butyleneglycol, hexanodioic acid and terephthalic acid.Poly-(hydroxycarboxylic acid) comprises lactyl homopolymer and multipolymer, poly butyric ester (PHB) or other polyhydroxy-alkanoates homopolymer and multipolymer.This type of polyhydroxy-alkanoates comprise PHB with the long monomer of long-chain more as C ₆-C ₁₂and the longer monomer of long-chain multipolymer, as United States Patent (USP) RE36, those disclosed polyhydroxy-alkanoates in 548 and 5,990,271.

The example of the suitable poly(lactic acid) of commercially available acquisition is the LACEA that derives from the NATUREWORKS of Cargill Dow and derive from Mitsui Chemical.The example of the suitable diacid/diol aliphatic polyester of commercially available acquisition is by Showa High Polymer Company, Ltd(Tokyo, Japan) poly-succsinic acid/hexanodioic acid fourth two ester copolymers of selling with trade(brand)name BIONOLLE1000 and BIONOLLE3000.The example of the suitable aliphatic series/aromatic copolyesters of commercially available acquisition is with trade(brand)name EASTAR BIO Copolyester or poly-(the tetramethylene adipic acid ester-copolymerization-terephthalate) of being sold with trade(brand)name ECOFLEX by BASF by Eastman Chemical.

The suitable polypropylene of commercially available acquisition or the non-limitative example of polypropylene copolymer comprise Basell Profax PH-835(35 melt flow rate (MFR) Ziegler-Natta isotactic polyprophlene, derive from Lyondell-Basell), Basell Metocene MF-650W(500 melt flow rate (MFR) metallocene isotactic polypropylene, derive from Lyondell-Basell), Polybond3200(250 melt flow rate (MFR) maleic anhydride polypropylene copolymer, derive from Crompton), Exxon Achieve3854(25 melt flow rate (MFR) metallocene isotactic polypropylene, derive from Exxon-Mobil Chemical), Mosten NB425(25 melt flow rate (MFR) Ziegler-Natta isotactic polyprophlene, derive from Unipetrol), Danimer27510(polyhydroxy-alkanoates polypropylene, derive from Danimer Scientific LLC), Dow Aspun6811A(27 melt index polyethylene polypropylene copolymer, derive from Dow Chemical), there is nominal 0 with Eastman9921(, the polyester terephthalic acid homopolymer of 81 limiting viscosities, derive from Eastman Chemical).

Thermoplastic polymer components can be single polymers material as above, or is two or more blends of thermoplastic polymer as mentioned above.

If polymkeric substance is polypropylene,, by recording for measuring polyacrylic ASTM D-1238, thermoplastic polymer can have the melt-flow index that is greater than 5g/10min.The melt-flow index of other expection comprises and is greater than 10g/10min, is greater than 20g/10min, or about 5g/10min is to about 50g/10min.

wax

In composition, wax used is lipid, mineral wax or their combination as disclosed herein, and wherein said lipid, mineral wax or their combination have the fusing point that is greater than 25 ℃.More preferably higher than 35 ℃, also more preferably higher than 45 ℃, and most preferably higher than the fusing point of 50 ℃.Described wax can have the fusing point lower than thermoplastic polymer melt temperature in composition.Term " wax " and " oil " are distinguished by the degree of crystallinity equaling or approach component at 25 ℃.In all cases, " wax " will have lower than thermoplastic polymer, preferably lower than 100 ℃, and most preferably lower than the maximum melt temperature of 80 ℃.Described wax can be lipid.Described lipid can be monoglyceride, triglyceride, triglyceride level, lipid acid, fatty alcohol, esterified fatty acid, epoxidation lipid, maleinization lipid, hydrogenation lipid, the Synolac derived from lipid, sucrose polyester or their combination.Described mineral wax can be straight-chain paraffin, branched alkane or their combination.Wax can be the material of partially or completely hydrogenation, or their combination and mixture, and the wax of their unmodified form is at room temperature liquid in form.When temperature is during higher than the melt temperature of wax, it is liquid oils.When being molten state, wax can be called as " oil ".Term " wax " and " oil " have meaning while only measuring at 25 ℃.Wax will be solid at 25 ℃, and oil is not solid at 25 ℃.In addition, their Alternates at higher than 25 ℃.

Because can containing melt temperature, wax distributes to produce peak value melt temperature, therefore when the described wax component of >50 % by weight is being equal to or higher than at 25 ℃ melting, described wax melt temperature is defined as and there is 25 ℃ or the higher peak value melt temperature that defines.This measurement can adopt differential scanning calorimetry (DSC) to carry out, and wherein melting heat is equivalent to the weight percent mark of wax.

The number-average molecular weight of the described wax of being measured by gel permeation chromatography (GPC) should be less than 2kDa, is preferably less than 1.5kDa, is also more preferably less than 1.2kDa.

The amount of wax is measured via weight-loss method.Use backflow flask system, the curing mixture that the narrowest sample size is not more than to 1mm is put in acetone with the ratio of 1g mixture/100g acetone.First before in putting into backflow flask, weigh described mixture, then acetone and the mixt was heated to 60 ℃ in 20 hours.Sample is taken out, and air-dry 60 minutes, and measure final weight.The formula that calculates wax weight percent is

Wax % by weight=([initial mass final quality]/[initial mass]) * 100%

The non-limitative example of the wax of expecting in composition disclosed herein comprises tallow, castor wax, coconut palm wax, cocoanut tree seed wax, maize germ wax, cottonseed wax, fish wax, linseed oil wax, olive wax, base of a fruit vegetable wax difficult to understand, palm-kernel wax, palm wax, palm seed wax, peanut wax, Semen Brassicae campestris wax, safflower wax, soya wax, spermaceti, sunflower seed wax, appropriate that wax, tung oil tree wax, spermaceti and their combination.The non-limitative example of concrete triglyceride level comprises that triglyceride level is as Tristearoylglycerol, tripalmitin, 1,2-bis-palmitinic acid olein, 1,3-bis-palmitinic acid olein, l-palmitinic acid-3-stearic acid-2-olein, l-palmitinic acid-2-stearic acid-3-olein, 2-palmitinic acid-l-stearic acid-3-olein, 1,2-bis-palmitinic acid linolein, 1,2-distearyl acid-olein, 1,3-distearyl acid-olein, trimyristin, trilaurin and their combination.The non-limitative example of concrete lipid acid of expection comprises capric acid, caproic acid, sad, lauric acid, tetradecanoic acid, palmitinic acid, stearic acid and their mixture.Other concrete wax of expection comprises hydrogenated soybean oil, partially hydrogenated soybean oil, partial hydrogenation palm-kernel oil and their combination.Also can use derive from Jatropha can not edible wax and rapeseed oil.Described wax can be selected from hydrogenated vegetable oil, partially hydrogenated vegetable oil, epoxidized vegetable oil, maleinization vegetables oil.The object lesson of this type of vegetables oil comprises soybean oil, Semen Maydis oil, canola oil and palm-kernel oil.

Described wax can be from recyclable materials (for example, derived from renewable resources).As used herein, " renewable resources " is the resource (for example, in during 100 years) being produced by the speed natural process suitable with its wear rate.Described resource can be natural or supplementary again by agrotechnique.The non-limitative example of renewable resources comprises plant (for example sugarcane, beet, corn, potato, citrus fruit, xylophyta, lignocellulose, hemicellulose, cellulose waste), animal, fish, bacterium, fungi and forestry products.These resources can be naturally occurring, mixing or genetic engineering organism.Formation such as the natural resource of crude oil, coal, Sweet natural gas and peat need to surpass the time of 100 years, and they are not considered to renewable resources.

The object lesson of mineral wax comprises paraffin (comprising Vaseline), montanin wax and the polyolefin-wax being made by cracking process, the wax that preferably polyethylene is derivative.Mineral wax and plant-sourced wax can be mixed.Plant base wax can be distinguished by their carbon-14 content.

Wax disclosed herein can be based on described composition gross weight meter approximately 5 % by weight to the weight percent of approximately 40 % by weight be present in described composition.Other expection weight percentage ranges of described wax comprises that gross weight meter approximately 8 % by weight based on described composition are to approximately 30 % by weight, preferable range be approximately 10 % by weight to approximately 30 % by weight, approximately 10 % by weight are to approximately 20 % by weight, or approximately 12 % by weight are to approximately 18 % by weight.The concrete wax weight percent of expection comprises gross weight meter approximately 5 % by weight based on described composition, approximately 6 % by weight, approximately 7 % by weight, approximately 8 % by weight, approximately 9 % by weight, approximately 10 % by weight, approximately 11 % by weight, approximately 12 % by weight, approximately 13 % by weight, approximately 14 % by weight, approximately 15 % by weight, approximately 16 % by weight, approximately 17 % by weight, approximately 18 % by weight, approximately 19 % by weight, approximately 20 % by weight, approximately 21 % by weight, approximately 22 % by weight, approximately 23 % by weight, approximately 24 % by weight, approximately 25 % by weight, approximately 26 % by weight, approximately 27 % by weight, approximately 28 % by weight, approximately 29 % by weight, approximately 30 % by weight, approximately 31 % by weight, approximately 32 % by weight, approximately 33 % by weight, approximately 34 % by weight, approximately 35 % by weight, approximately 36 % by weight, approximately 37 % by weight, approximately 38 % by weight, approximately 39 % by weight, with approximately 40 % by weight.

additive

Composition disclosed herein also can comprise additive.Additive dispersibles in whole composition, maybe can be located substantially in thermoplastic layer's thermoplastic polymer part, or be located substantially in the oily part of described composition.In the situation that described additive is arranged in the oily part of described composition, described additive can be oil-soluble or oil-dispersing property.

The non-limitative example of the additive types of expecting in composition disclosed herein comprises spices, dyestuff, pigment, nano particle, antistatic agent, filler and their combination.Composition disclosed herein can comprise single additive or the mixture of additive.For example, spices and tinting material (for example pigment and/or dyestuff) all can be present in described composition.When existing, one or more additives are with approximately 0.05 % by weight to approximately 20 % by weight, or approximately 0.1 % by weight to the weight percent of approximately 10 % by weight exists.The weight percent of concrete expection comprises approximately 0.5 % by weight, approximately 0.6 % by weight, approximately 0.7 % by weight, approximately 0.8 % by weight, approximately 0.9 % by weight, approximately 1 % by weight, approximately 1.1 % by weight, approximately 1.2 % by weight, approximately 1.3 % by weight, approximately 1.4 % by weight, approximately 1.5 % by weight, approximately 1.6 % by weight, approximately 1.7 % by weight, approximately 1.8 % by weight, approximately 1.9 % by weight, approximately 2 % by weight, approximately 2.1 % by weight, approximately 2.2 % by weight, approximately 2.3 % by weight, approximately 2.4 % by weight, approximately 2.5 % by weight, approximately 2.6 % by weight, approximately 2.7 % by weight, approximately 2.8 % by weight, approximately 2.9 % by weight, approximately 3 % by weight, approximately 3.1 % by weight, approximately 3.2 % by weight, approximately 3.3 % by weight, approximately 3.4 % by weight, approximately 3.5 % by weight, approximately 3.6 % by weight, approximately 3.7 % by weight, approximately 3.8 % by weight, approximately 3.9 % by weight, approximately 4 % by weight, approximately 4.1 % by weight, approximately 4.2 % by weight, approximately 4.3 % by weight, approximately 4.4 % by weight, approximately 4.5 % by weight, approximately 4.6 % by weight, approximately 4.7 % by weight, approximately 4.8 % by weight, approximately 4.9 % by weight, approximately 5 % by weight, approximately 5.1 % by weight, approximately 5.2 % by weight, approximately 5.3 % by weight, approximately 5.4 % by weight, approximately 5.5 % by weight, approximately 5.6 % by weight, approximately 5.7 % by weight, approximately 5.8 % by weight, approximately 5.9 % by weight, approximately 6 % by weight, approximately 6.1 % by weight, approximately 6.2 % by weight, approximately 6.3 % by weight, approximately 6.4 % by weight, approximately 6.5 % by weight, approximately 6.6 % by weight, approximately 6.7 % by weight, approximately 6.8 % by weight, approximately 6.9 % by weight, approximately 7 % by weight, approximately 7.1 % by weight, approximately 7.2 % by weight, approximately 7.3 % by weight, approximately 7.4 % by weight, approximately 7.5 % by weight, approximately 7.6 % by weight, approximately 7.7 % by weight, approximately 7.8 % by weight, approximately 7.9 % by weight, approximately 8 % by weight, approximately 8.1 % by weight, approximately 8.2 % by weight, approximately 8.3 % by weight, approximately 8.4 % by weight, approximately 8.5 % by weight, approximately 8.6 % by weight, approximately 8.7 % by weight, approximately 8.8 % by weight, approximately 8.9 % by weight, approximately 9 % by weight, approximately 9.1 % by weight, approximately 9.2 % by weight, approximately 9.3 % by weight, approximately 9.4 % by weight, approximately 9.5 % by weight, approximately 9.6 % by weight, approximately 9.7 % by weight, approximately 9.8 % by weight, approximately 9.9 % by weight, with approximately 10 % by weight.

As used herein, any aromatic material of term " spices " for representing to discharge from composition disclosed herein subsequently.Known multiple compounds, as spices purposes, comprises as the material of aldehyde, ketone, alcohol and ester.More generally, known packets is used as spices containing naturally occurring plant and animal oil and the exudate of the compounding mixture of various chemical compositions.Spices herein can be relatively simple on their composition, or can comprise the compounding mixture of the high complexity of natural and synthetic chemical components, and all components is all selected for any required smell is provided.Typical spices can comprise for example comprise exotic material as sandalwood oil, civet oil and patchouli oil wooden/soil property substrate.Described spices can have the slight fragrance of a flower (for example rose extract, violet extract and cloves).Described spices also can be prepared the fruity that provides required, for example bitter orange, lemon and orange.Can be aromatotherapy effect and select the spices of sending in the present composition and goods, as lax or frank mood are provided.Therefore, can use and discharge any material joyful or in other words desired smell as the fragrance active in the present composition and goods.

Pigment or dyestuff can be inorganic, organic or their combination.The pigment of expection and the object lesson of dyestuff comprise Pigment Yellow 73 (C.I.14), Pigment red (C.I.48:3), Pigment blue (C.I.15:4), Pigment black (C.I.7) and their combination.Concrete expection dyestuff comprises that water-based ink tinting material is as substantive dyestuff, matching stain, basic dyestuff, and the soluble dyestuff of multi-solvents.Example includes but not limited to the blue 1(C.I.42090:2 of FD & C), the red 6(C.I.15850 of D & C), the red 7(C.I.15850:1 of D & C), the red 9(C.I.15585:1 of D & C), the red 21(C.I.45380:2 of D & C), the red 22(C.I.45380:3 of D & C), the red 27(C.I.45410:1 of D & C), the red 28(C.I.45410:2 of D & C), the red 30(C.I.73360 of D & C), the red 33(C.I.17200 of D & C), the red 34(C.I.15880:1 of D & C), with the yellow 5(C.I.19140:1 of FD & C), the yellow 6(C.I.15985:1 of FD & C), the yellow 10(C.I.47005:1 of FD & C), D & C orange 5(C.I.45370:2), and their combination.

The filler of expection includes but not limited to that mineral filler is as magnesium, aluminium, silicon and titanyl compound.These materials can be used as cheap filler or processing aid adds.Other inorganic materials that can be used as filler comprises hydrated magnesium silicate, titanium dioxide, calcium carbonate, clay, chalk, boron nitride, Wingdale, diatomite, mica, glass, quartz and ceramic.In addition, inorganic salt be can use, an alkali metal salt, alkaline earth salt, phosphoric acid salt comprised.In addition, also Synolac can be joined in described composition.Synolac comprises polyvalent alcohol, polyprotonic acid or acid anhydrides and/or lipid acid.

The additive of other expection comprises nucleator and the finings of thermoplastic polymer.Being applicable to for example polyacrylic object lesson is phenylformic acid and derivative (for example Sodium Benzoate and lithium benzoate) and kaolin, talcum and glycerin zinc.Sorbitol dibenzal (DBS) is the example of spendable finings.Spendable other nucleator is organic carboxylate, sodium phosphate and metal-salt (for example dibenzoic acid aluminium).Can be added in 20 parts each 1,000,000 parts (20ppm) to 20,000ppm, more preferably in 200ppm to 2000ppm scope, and nucleator or the finings in 1000ppm to 1500ppm scope most preferably.Can adopt the stretching and the impact property that add nucleator to improve final mixture composition.

The tensio-active agent of expection comprises the combination of anion surfactant, amphoterics or anion surfactant and amphoterics and their combination, as for example United States Patent (USP) 3,929,678 and 4,259,217 and EP414549, WO93/08876 and WO93/08874 in disclosed tensio-active agent.

The nano particle of expection comprises allotropic substance, clay, organo-clay, vitriol, nitride, oxyhydroxide, oxygen base/oxyhydroxide, granular insoluble polymer, silicate, vitriol and the carbonate of metal, metal oxide, carbon.Example comprises silicon-dioxide, carbon black, graphite, Graphene, soccerballene, expanded graphite, carbon nanotube, talcum, calcium carbonate, wilkinite, montmorillonite, kaolin, glycerin zinc, silicon-dioxide, aluminosilicate, boron nitride, aluminium nitride, barium sulfate, calcium sulfate, weisspiessglanz, feldspar, mica, nickel, copper, iron, cobalt, steel, gold and silver, platinum, aluminium, wollastonite, aluminum oxide, zirconium white, titanium dioxide, cerium oxide, zinc oxide, magnesium oxide, stannic oxide, ferriferous oxide (Fe ₂o ₃, Fe ₃o ₄) and their mixture.Nano particle can increase intensity, thermostability and/or the wear resistance of composition disclosed herein, and can give composition electrical property.

Expection adds oil, or has a certain amount of oil in described composition.Oil can be irrelevant with the lipid existing, or can be the unsaturated or more unsaturated pattern of cerolipoid.The weight range of oil can be 0 % by weight to 40 % by weight of described composition, 5 % by weight to 20 % by weight of described composition more preferably, and most preferably be 8 % by weight to 15 % by weight of described composition.

The static inhibitor of expection comprises the known fabric softener that anti-electrostatic beneficial effect is provided.Those fabric softeners for example with fatty acyl group, it has the iodine number higher than 20, as N, N-bis-(butter acyl-oxygen ethyl)-N, N-dimethyl methyl esters ammonium sulfate.

moulded parts

Composition disclosed herein can be configured as molding or extrudate.Moulded parts is injection moulding, compression moulding or the object that forms while being blow molded into by gas the shape being limited by master mold.Molding or extrudate can be solid body as toy, or hollow object as bottle, container, tampon applicator, medicine is inserted into body vestibule application device, the medical facilities that single is used, surgical device etc.Moulded parts and their method general description of preparation, in for example United States Patent (USP) 6,730,057 and U.S. Patent Publication 2009/0269527, are incorporated herein by reference every piece of document.

Composition disclosed herein is suitable for preparing vessel prepd as the packing of personal care product, household cleaning product and laundry detergent product and this based article.Personal care product comprises makeup, hair-care, skin care, dental care products, i.e. shampoo, soap, toothpaste.Therefore, the packing of product is also disclosed herein, as the container that comprises composition described herein or bottle.Container can relate to one or more elements of container, as main body, top cover, nozzle, shank or integral container for example main body and top cover.

Composition disclosed herein is applicable in hook-loop fastening system.Hook-loop fastening system has the recessed fastening material being made by filamentary material and has the protruding fastening material of hook, constructs described hook with filamentary material described in fastening.These hook-loop systems can be used together with various goods.For example, hook-loop fastening system can be used in wearable absorbent articles, as diaper, training pants, incontinence undergarments, women's menopad etc.(in various embodiments, wearable absorbent articles can be disposable or reusable.) hook-loop fastening system also can be used for the disposable cloth of fastening, disposable clothing, medical binder and other goods.

Protruding fastening material comprises hook and base material.Protruding fastening material can comprise the hook with any shape, and described shape is as " J " shape, "T"-shaped or mushroom-shaped or any other shape known in the art.Those of ordinary skill in the art will be understood that, protruding fastening material and the hook on it can be made by any suitable method, as casting, molding, section bar extrusion or micro-copying.

One or more parts of protruding fastening material or integral body can and be enumerated or any additive known in the art or processing aid are made herein by multiple plastic and/or formable material, and described plastic and/or formable material comprises any natural or synthetic materials enumerated and/or any other appropriate materials well known in the art herein.As concrete example, protruding fastening material can be made by multiple combination thing, according to any effective combination in any embodiment disclosed herein, and the uniform mixture that described composition comprises thermoplastic polymer and wax (as the wax based on any Type Soybean oil).

Recessed fastening material can be any filamentary material of the hook that is suitable for the material of engages male fastening releasedly.Filamentary material can be taked many forms, as fabric (such as weaven goods, knitted fabrics, felt, non-woven fabric) textiles, mixture etc.Fiber in filamentary material can be constructed has any size, shape and length; This fibrid can be made by any suitable method known in the art.One or more parts of recessed fastening material or whole can and enumerating herein or any additive known in the art or processing aid are made by any natural or synthetic materials of enumerating herein and/or any other appropriate materials well known in the art.Recessed fastening material can be attached in product in many ways, as can before overlap on fastening type wearable absorbent articles.

Described product can comprise the container and the mark relevant to container being made by described composition, described in be labeled as the information that potential buyer provides container.This mark relevant to container comprises the displaying of page in label, plug-in unit, magazine or newspaper, paster, reward voucher, leaflet, Zhong Huo passageway, passageway end and is intended to be taken away or stay from the sales item in the nearest region of product by potential buyer.

In addition, described moulded parts also can comprise other additive, for example, as other polymer materials (such as polypropylene, polyethylene, ethane-acetic acid ethyenyl ester, polymethylpentene, their any combination etc.), filler (such as glass, talcum, calcium carbonate etc.), releasing agent, fire retardant, conductive agent, film static inhibitor, pigment, antioxidant, impact modifier, stablizer (UV light absorber), wetting agent, dyestuff or their any combination.Moulded parts static inhibitor comprises cationoid reagent, reagents for anion, and preferred non-ion reagent.Cationoid reagent comprise have alkyl substituent ammonium,

and sulfonium cation, and the negatively charged ion being associated is as chlorion, methyl esters sulfate radical or nitrate radical.The reagents for anion of expection comprise alkylsulfonate.Non-ion reagent comprises polyoxyethylene glycol, organic stearate, organic amide, glyceryl monostearate (GMS), alkyl diglycollic amide and ethoxylated amine.

the method of preparing composition disclosed herein

the melting mixing of polymkeric substance and wax: by polymkeric substance described in melting under the existence of wax, can aptly polymkeric substance and wax be mixed.Under molten state, make polymkeric substance and wax stand to shear, described shearing can make described oil be distributed in described polymkeric substance.Under molten state, wax and polymkeric substance are significantly more compatible each other.

The melting mixing that can multiple different methods realizes polymkeric substance and wax, but preferably high shear process is to form preferred composition form.Described method can relate to traditional thermoplastic polymer processing units.General method relates to polymkeric substance is joined in system, and molten polymer, then adds wax.Yet described material may be added in any order, this depends on the character of concrete mixed system.

haake batch agitator: Haake batch agitator is the slight simple mixed system of shearing and mixing.Described unit is comprised of two mixing screws, in the chamber of the fixed volume that described screw rod comprises heating chamber.As required material is joined to top, unit.Preferred order is first polymkeric substance to be joined in chamber, is heated to higher 20 ℃ to 120 ℃ than polymer melt (or solidifying) temperature.After polymer melt, can add wax, and after wax melting, mix with molten polymer.Then with two mixing screws, with approximately 60 to approximately 120 screw rod RPM speed, the mixture of molten state is mixed approximately 5 to approximately 15 minutes.After composition mixes, the front portion of taking off this unit, and take out the blend compositions of molten state.Due to its design, this system retains several minutes by part composition before crystallization starts under high temperature.Quenching technique in the middle of this blending means provides, wherein said composition can come cooling and curing with approximately 30 seconds to approximately 2 minutes.During Haake mixes, the mixture of polypropylene and soybean oil illustrates, and the molten wax that is greater than 20 % by weight causes wax not to be incorporated into completely in polypropylene miser, shows that higher shearing rate can cause better wax to mix and can mix more substantial wax.

single screw extrusion machine: single screw extrusion machine is typical process unit used during most of molten polymers are extruded.Single screw extrusion machine comprises single axle conventionally in cylinder, and described axle and cylindrical design have some rotation element (for example shape and gap) to regulate shear performance.The typical RPM scope of single screw extrusion machine is approximately 10 to approximately 120.Single screw extrusion machine design is comprised of feeding part, compression section and metering section.In feeding part, use compared with the scraper plate of high gap volume, by polymkeric substance heating and be fed in compression section, wherein melting completes and the polymkeric substance of melting is completely sheared.In compression section, the void volume between scraper plate reduces.In metering section, adopt the little void volume between scraper plate, make polymkeric substance stand its highest shearing displacement.Work for this reason, use general purpose single screw design.In this unit, realize continuously or stable state type technique, wherein in desired position, introduce composition component, then in target area, stand temperature and shearing.Because the interactional physical properties of each position in single screw rod technique is over time and constant, described technique can be considered to steady state process.This allows to optimize hybrid technique by regulating district by district temperature and shearing, wherein can, by rotation element and/or cylindrical design or screw speed, change and shear.

Then by by melt extrusion in liquid cooling medium (being generally water), then polymerised unit bar can be cut into pieces, can will leave the blend compositions granulation of single screw extrusion machine.Molten polymer granulating method used in the polymer processing of two kinds of base types of existence: burst bar cutting and under water granulation.In the cutting of thigh bar, described composition is fast quench (generally much smaller than 10 seconds) in liquid medium, then cuts into pieces.In granulating method, molten polymer is cut into pieces under water, then simultaneously or putting into immediately in cryogenic liquid thereafter, described cryogenic liquid makes polymkeric substance fast quench and crystallization.These methods are conventionally known and for polymer processing industry.

The polymerised unit bar that derives from forcing machine is put in water-bath fast, and described water-bath has the temperature range (be for example generally about room temperature, it is 25 ℃) of 1 ℃ to 50 ℃ conventionally.Alternative end-use of blend compositions is to be further processed into desired structure example as fiber sprinning or injection moulding.Single Screw Extrusion method can provide mixing and the high quenching speed of height.Single screw extrusion machine also can be used for granulating composition to be further processed into fiber and injection-molded item.For example, fiber single screw extrusion machine can be 37mm system, has the L/D ratio rate of standard universal screw rod profile and 30:1.

twin screw extruder: twin screw extruder be wherein need most of molten polymers that high strength is mixed extrude in typical unit used.Twin screw extruder comprises two axles and outer cylinder.The typical RPM scope of twin screw extruder is approximately 10 to approximately 1200.Twin shaft can corotation or derotation, and allows the high-intensity mixing of close tolerance.In the unit of the type, realize continuously or stable state type technique, wherein in the desired position along screw rod, introduce composition component, and in target area, stand high temperature and shearing.Because the interactional physical properties of each position in single screw rod technique is over time and constant, described technique can be considered to steady state process.This allows to optimize hybrid technique by regulating district by district temperature and shearing, wherein can, by rotation element and/or cylindrical design, change and shear.

Then by by melt extrusion in liquid cooling medium (being generally water), then polymerised unit bar is cut into pieces, can be by the blend compositions granulation of twin screw extruder end.Molten polymer granulating method used in the polymer processing of two kinds of base types of existence, burst bar cutting and under water granulation.In the cutting of thigh bar, described composition is fast quench (generally much smaller than 10s) in liquid medium, then cuts into pieces.In granulating method, molten polymer is cut into pieces under water, then simultaneously or putting into immediately in cryogenic liquid thereafter, described cryogenic liquid makes polymkeric substance fast quench and crystallization.Alternative end-use of blend compositions is to be further processed into desired structure example as fiber sprinning or injection moulding.

Can adopt three kinds of different screw rod profiles, use the 40:1 L/D ratio rate system of Baker Perkins CT-2525mm corotation.This specific CT-25 is comprised of nine regions, wherein temperature controllable and mould temperature.Same four feasible liquid infusion sites are between region 1 and 2 between (position A), region 2 and 3 between (position B), region 4 and 5 between (position C) and region 6 and 7 (position D).

Liquid infusion position does not have direct heating, but indirectly by adjacent area temperature, heats.Position A, B, C and D can be used for injecting additive.Region 6 can comprise lateral feeding machine, to add additional solid or for exhaust.Region 8 comprises vacuum unit on demand to remove the steam of any remnants.Except as otherwise noted, at A place, position, inject molten wax.Wax is via the melting of glue tank, and feeds to twin screw via hot flexible pipe.Glue tank and feeding hose are all heated above the temperature (for example approximately 80 ℃) of wax fusing point.

In CT-25, use two class regions, transmission and mixing.In transmission region, material is heated to (if necessary, comprise and be heated to melting, this completes while being transferred to region 2 in region 1) and is being low to moderate under moderate shear and along drum length, transmit.Mixing portion comprises the particular element that remarkable increase is sheared and mixed.The length and location of mixing portion can change on demand, to improve on demand or to reduce shearing.

With the main hybrid element of two classes, shear and mix.The first is kneading block, and the second is thermomechanical energy element.Simple mixing screw has total spiro rod length of 10.6%, uses the hybrid element forming by singly organizing kneading block, then uses reversing element.Kneading member is the right-handed forward kneading block of RKB45/5/12(, 45 ° of biasings and five blades, the total leement duration of 12mm), then be two right-handed forward kneading blocks of RKB45/5/36(, 45 ° of biasings and five blades, the total leement duration of 36mm), be thereafter the reversing element that two RKB45/5/12 and reversing element 24/12LH(turn left, 24mm pitch, the total leement duration of 12mm).

Simple mixing screw hybrid element is arranged in region 7.Powerful screw rod consists of totally the additional mixing portion of four.First part is one group of kneading block, and it is the single element of RKB45/5/36 (being positioned at region 2), is then the transfer element that enters region 3, and the second mixing region is positioned at described region 3.In the second mixing region, after two RKB45/5/36 elements, be directly four TME22.5/12(thermomechanical elements, 22.5 teeth/turn, and total leement duration is 12mm), be then two transfer elements that enter the 3rd mixing region.Be positioned at the forward of the 3rd mixing region that region 4 ends enter region 5 being turned left by three RKB45/5/36 and KB45/5/12LH(and reverse piece, 45 ° of biasings and five blades, the total leement duration of 12mm) form.Transmission of materials enters final mixing region by region 6, and described region comprises two TME22.5/12, seven RKB45/5/12, is then SE24/12LH.SE24/12LH is reversing element, and it can make last mixing region be filled with polymkeric substance and additive completely, and powerful mixing wherein occurs.Reversing element can be controlled the residence time in given mixing region, and is that the key of degree of mixing is facilitated factor.

High strength mixing screw is comprised of three mixing portions.The first mixing portion is arranged in region 3, and is two RKB45/5/36, is three TME22.5/12 subsequently, is then transferred in the second mixing portion.Before the second mixing portion, use three right-handed transfer elements of RSE16/16(, there is the total leement duration of 16mm pitch and 16mm) element, to increase to the pumping of the second mixing region.Be arranged in second mixing region in region 5 by three RKB45/5/36, KB45/5/12LH subsequently, and the full reversion element SE24/12LH following forms.SE16/16 element before mixing region and the combination of two reversing elements, greatly strengthened and sheared and mix.The 3rd mixing region is arranged in region 7, and by three RKB45/5/12, two TME22.5.12 subsequently, and another three RKB45/5/12 that follow form.Reversing element SE24/12LH makes the 3rd mixing region complete.

Another kind of screw element types is reversing element, and it can improve the compactedness of this screw portion, and better mixing is provided.It is ripe field that twin screw mixes.Those skilled in the art can consult books to carry out suitable mixing and dispersion.The screw extrusion press of these types is well known in the art, and general description is found in: " Twin Screw Extrusion2E:Technology and Principles " (James White, Hansen Publications).Although provided the object lesson mixing, it is feasible using many various combinations of various arrangements of components, reaches required mixedness.

the performance of composition

Composition disclosed herein can have one or more following performances, and the advantage that is better than known thermoplastic compounds is provided.These beneficial effects can Individual existences or are existed with array configuration.

Shear viscosity reduces: by wax for example HSBO join thermoplastic polymer for example in Basell PH-835, reduced the viscosity of thermoplastic polymer (for example polypropylene of melting HSBO wax under existing).Reduced viscosity is process improving, because it can allow higher effective polymer flow speed owing to having the operation pressure (lower shear viscosity) of reduction, maybe can allow to improve polymericular weight, and this has improved the intensity of material.There is not wax, may not under existing processing condition, in suitable mode, there is the polymkeric substance of high polymers flow.

Sustainability content: comprising sustainability material in existing polymeric system is the characteristic of strong expectation.Can in self-sow circulation, contribute to whole reduction environmental influence by the annual material substituting, and expect.

Dyeing: pigment is joined in polymkeric substance, be usually directed to use expensive mineral compound, described compound is particle in polymeric matrix.These particles are conventionally larger, and may affect the processing of described composition.Use wax disclosed herein, due to fine dispersion (being recorded by drop size) and being uniformly distributed in whole thermoplastic polymer, allow to come painted via for example traditional oils ink compound.Soya-bean ink is widely used in paper wood publication, and it does not affect workability.

Perfume compound: due to wax for example the comparable base-material thermoplastic polymer of HSBO more preferentially comprise spices, therefore composition of the present invention can be used for comprising the fragrance useful to end-use.Many scented candles are used SBO base or paraffinic base material to make, and the polymkeric substance therefore these being incorporated into for final composition is available.

Surface feel: do not compare with there is no the thermoplastic polymer composition of wax, the existence of wax can change the surface property of composition, makes it feel more soft.

Form: beneficial effect is sent via the form producing in composition preparation.Described form is by the combination results of powerful mixing and rapid crystallization.Powerful mixing derives from blending means used, and rapid crystallization derives from method of cooling used.Expectation high strength is mixed, and uses rapid crystallization to keep Small Holes size and relative pore size distribution uniformly.Fig. 2 illustrates the HSBO in Basell Profax PH-835, has and is less than 10 μ m, is less than 5 μ m, and is less than the orifice size of 1 μ m.

the method of preparing moulded parts

The moulded parts of composition disclosed herein can adopt multiple technologies to make, as extruding of injection moulding, blowing, compression moulding or pipeline, tubing, section bar or cable.

The injection moulding of composition disclosed herein is multistep technique, by described technique, described composition is heated until then its melting firmly makes it enter in airtight mould, in mould, is shaped, and finally passes through cooling curing.Described composition is being less than approximately 180 ℃, is more typically less than melt-processed under the melt temperature of approximately 160 ℃, so that worthless thermal destruction minimizes.Equipment for three kinds of common types of injection moulding is plunger injection molding forming machine, have the screw rod plasticator of function of injection and reciprocating screw type equipment (referring to " Encyclopedia of Polymer Science and Engineering " the 8th volume 102-138 page, John Wiley and Sons, New York, 1987(" EPSE-3 ")).

Plunger-type injection molding machine consists of cylinder, distributor and plunger.Plunger pushes melt in mould.The screw rod plasticator with second stage function of injection is by plasticator, directional valve, form without cylinder and the plunger of distributor.After plasticating by screw rod, plunger pushes melt in mould.Reciprocating screw injection molding machine consists of cylinder and screw rod.Screw rod rotates so that then material melting and mixing move forward melt is pushed in mould.

The example of suitable injection moulding machine is Engel Tiebarless ES60TL equipment, and it has mould, nozzle and cylinder, and described cylinder is divided into region, and wherein each region is equipped with thermopair and control temperature unit.The region of injection moulding machine can be described to proparea, central section and back zone, thereby pellet is incorporated in the proparea under controlled temperature.In injection moulding machine, the temperature of nozzle, mould and barrel assemblies can change according to composition melt processing temperature and mould used, but conventionally in following scope: nozzle, 120-170 ℃; Proparea, 100-160 ℃; Central section, 100-160 ℃; Back zone, 60-150 ℃; And mould, 5-50 ℃.Other typical processing conditions comprises that about 2100kPa is to approximately 13, the injection pressure of 790kPa, and about 2800kPa is to approximately 11, the maintenance pressure of 030kPa, the hold-time of approximately 2 seconds to approximately 15 seconds, and the about 2cm/sec injection speed of about 20cm/sec extremely.The example of other suitable injection moulding machine comprises Van Dorn150-RS-8F type, Battenfeld1600 type and Engel ES80 type.

Compression moulding relates to a certain amount of composition disclosed herein is packed in the Lower Half of open die.Under pressure, the first half of die head and Lower Half are combined, thereby melt composition is consistent with the shape of die head.Then cooling die, with rigid plastics.

With blowing, produce bottle and other hollow object (referring to EPSE-3).In this technique, a pipe melt composition that is called parison is expressed in airtight hollow mould.Then ventilation makes parison swell, and composition is pushed and abutted against on mold wall.The cooling plastic hardening that makes subsequently.Then open mould, and take out goods.

Blowing has advantages of many injection mouldings that are better than.Pressure used is far below injection moulding.Can, conventionally under the pressure of 25-100psi between plastics and die surface, implement blowing.By contrast, injection pressure can reach 10,000 to 20,000psi(referring to EPSE-3).In the situation that the molecular weight that composition has is too high so that be difficult for flowing through mould, select blow molding technology.The polymkeric substance of high molecular is compared with low-molecular-weight analogue, conventionally has good performance, and for example high molecular weight material has environmental stress cracking resistance better.(referring to EPSE-3).Use blowing likely to manufacture very thin product outer wall.This means composition used still less, and set time is shorter, causes cost and higher throughput by saving material.Another key character of blowing is that because it only uses a master mold, so the subtle change of parison nozzle place extrusion condition can change wall thickness (referring to EPSE-3).This is for estimating to be in advance favourable for the structure of wall thickness.Can evaluate thering are the goods of some thickness, thus then can use up to specification the thinnest the gentliest and the most cheap goods.

Formation extruded product is extruded in employing, as pipeline, tubing, excellent bar, cable or section bar.Composition is injected in heating chamber, and passes described chamber by continuous rotary screw rod.Single screw rod or twin screw extruder are usually used in plastic extrusion.Composition is plasticated, and carry by pipe die head.Traction apparatus tractive pipe by being furnished with calibration and the cooled region of calibrating die, vacuum tank alignment unit and cooling unit.Rigid pipe is cut by length, and metal hose is reeled.Can, in a step process, implement section bar extrusion.Extrude operation and be further described in Hensen, in " Plastic Extrusion Technology " 43-100 page of F..

Use multiple molding or extrusion technique, by tampon application device molding or be extruded into desired shape or configuration, so that the application device that comprises outer tubular member and inner tubular member or plunger to be provided.Outer tubular member and plunger can be manufactured by different moldings or extrusion technique.External member can be formed by composition molding disclosed herein or extrusion molding, and plunger can be made by another kind of material.

In general, the method for manufacturing tampon application device relates to composition disclosed herein is encased in mixing tank, and by described composition melting mixing and be processed into pellet.Then use injection-moulding device, pellet is configured to tampon application device.Conventionally under controlled temperature, time and speed, implement injection moulding process, and described method relates to composition described in melt-processed, the composition of melting is expelled in mould, cooling, and be molded as desired plasticity object.Alternatively, described composition directly can be encased in injection-moulding device, and melting model is moulded desired tampon application device.

An example preparing the method for tampon application device relates to extrudes composition formation shaft at the temperature higher than composition melt temperature, described shaft is cut into pellet, and described pellet is injection molded into desired tampon application device form.

The mixing tank that is usually used in melt blending thermoplastic compounds is generally single screw extrusion machine, twin screw extruder and kneading extruder.The example that is applicable to the forcing machine of commercially available acquisition herein comprises Black-Clawson single screw extrusion machine, Werner and Pfleiderer synchronous rotary formula twin screw extruder, HAAKE.RTM.Polylab System reversible type twin screw extruder and Buss kneading extruder.The comprehensive discussion of mixed with polymers and extrusion molding is disclosed in " Encyclopedia of Polymer Science and Engineering " the 6th volume 571-631 page (1986) and the 11st volume 262-285 page (1988) (John Wiley and Sons, New York).

Tampon application device can be packaged in any suitable wrapping material, as long as described wrapping material bear dirty and are disposable together with dry waste material.The wrapping material that imagination is made by biodegradable material, the processing of described wrapping material can produce minimum or without environmental problem.Also imagine, tampon application device can be packaged in the wrapping material of being made by the combination of paper, non-woven fabric, Mierocrystalline cellulose, thermoplastics or any other appropriate materials or these materials.

No matter which kind of method to make moulded parts by, described process relates to anneal cycles.The anneal cycles time is to manufacture hold-time and cooling time sum in moulded parts process.For concrete mould substantially under optimized processing condition, the anneal cycles time is depended on composition.Substantially optimized processing condition are Temperature Setting, shot size, injection pressure and the maintenance pressure of molding region, nozzle and the mould established.The anneal cycles time provided herein is as short as few ten seconds than the anneal cycles time that is formed molding or extrudate by composition disclosed herein.Use Engel Tiebarless ES60TL injection moulding machine provided in this article to make to be of a size of 1/2 inch long (L) (12.7mm) * 1/8 inch wide (W) (3.175mm) * 1/16 inch high (H) dog bone formula tensile bar (1.5875mm), be provided for measuring the molding of anneal cycles time or the representative standard goods of extrudate herein.

Hold-time, parts were in the time span that keeps keeping under pressure in order to start after material injection.Result is that (people that eyesight is 20--20 and anopsia defect) naked eyes are observed from the distance apart from molding or the about 20cm of extrusion molding product surface processed, and on outside surface, (preferably on outside surface and internal surface (if applicable)) cannot see obvious bubble and/or the shallow nest marking (preferably the two).This is the accurate and attractive in appearance quality in order to ensure parts.Contraction is considered in die design.Yet, may occur approximately 1.5% to 5%, approximately 1.0% to 2.5%, or 1.2% to 2.0% contraction.By shortening the hold-time until parts not by above-mentioned eyesight testing, the shape that does not meet mould and structure, be not full of completely or demonstrate excessive contraction, determine the shorter hold-time.Then, record the time before while there is this type of situation, as the shorter hold-time.

Be the times of parts when solidifying in mould and being easy to depart from from mould cooling time.Mould comprises at least two parts, makes moulded parts be easy to take out.In order to take out, at two-part parting line, place opens mould.When opening mould, can manually from the mould of opening, take out finished product molded parts, or without people's intervention, by pushover bar system, it be released automatically.Root Ju part geometry, this type of pushover bar can be comprised of the pin or the ring that embed in mould, when mould is opened, pushing pin or ring forward.For example, mould can comprise standard and carve disc type or the mechanical rod-type release tip, with mechanical assistance, releases molded parts.It is 1/8 that the rod-type of suitable size is released the tip " (3.175mm) etc.By shortening cooling time until parts hang on mould and are not easy to the demoulding, determine shorter cooling time.Then, the time before when recording-member is suspended, as shorter cooling time.

Processing temperature used arranges enough low, to avoid composition thermal destruction, however enough high again, to be allowed for the composition unrestricted flow of molding.Be less than approximately 180 ℃, or be more typically less than under the melt temperature of approximately 160 ℃ composition described in melt-processed, so that thermal destruction minimizes.In general, after polymer melt, in the temperature higher than degradation temperature during lower for some time, polymkeric substance may thermal destruction.As those skilled in the art is understood according to the disclosure, cause the required concrete time of thermal destruction by depending on concrete composition, higher than time of melt temperature (Tm) and higher than the number of degrees of Tm.Temperature can be low as much as possible, to allow polymer melt unrestricted flow, so that thermal destruction risk minimization.During extruding, the high shear force in forcing machine increases the temperature in forcing machine, higher than design temperature.Therefore, design temperature can be lower than the melt temperature of material.Low processing temperature also contributes to shorten cycling time.For example, unrestricted, the nozzle of injection moulding machine and the design temperature of barrel assemblies can change according to the melt temperature of polymer materials and the type of mould therefor, and can from lower than approximately 20 ℃ of Tm to higher than approximately 30 ℃ of Tm, but conventionally in following scope: nozzle, 120-170 ℃; Proparea, 100-160 ℃; Central section, 100-160 ℃; Back zone, 60-160 ℃.The setting die temperature of injection moulding machine also depends on the type of composition and the type of mould therefor.Higher die temperature contributes to polymkeric substance crystallization quickly, and shortens cycling time.Yet if die temperature is too high, parts may be out of shape out time from mould.The non-limitative example of die temperature comprises 5-60 ℃ or 25-50 ℃.

Molding injection speed depends on the flow velocity of composition.Flow velocity is higher, and viscosity is lower, and the required speed of injection moulding is lower.Injection speed can be in the scope of about 5cm/sec to 20cm/sec, and in one embodiment, injection speed is 10cm/sec.If viscosity is high, injection speed is accelerated, and forcing machine pressure is pushed in mould melt material to fill mould.Injection pressure depends on processing temperature and shot size.Injection pressure is depended in unrestricted flow, and reading is not higher than about 14Mpa.

example

Polymkeric substance: in this work, main polymkeric substance used is polypropylene (PP) and polyethylene (PE), but can use other polymkeric substance (referring to for example United States Patent (USP) 6,783,854, it provides feasible polymkeric substance complete list, yet not all tested).The concrete polymkeric substance of evaluation is:

Basell Profax PH-835: made the Ziegler-Natta isotactic polyprophlene of nominal 35 melt flow rate (MFR)s by Lyondell-Basell.

Exxon Achieve3854: made the metallocene isotactic polypropylene of nominal 25 melt flow rate (MFR)s by Exxon-Mobil Chemical.

Total8650: made the Ziegler-Natta isotaxy ethylene atactic copolymer polypropylene of nominal 10 melt flow rate (MFR)s by Total Chemicals.

Danimer27510: special-purpose polyhydroxy-alkanoates multipolymer.

Dow Aspun6811A: being made by Dow Chemical, is the polyethylene and ethylene copolymers of 27 melt indexs.

BASF Ultramid B27: being made by BASF, is low-viscosity polyamides-6 resin.

Eastman9921: made by Eastman Chemical, for thering is the polyester terephthalic acid homopolymer of nominal 0,81 limiting viscosity.

Natureworks Ingeo Biopolymer4032D: being made by Natureworks, is polylactic acid polymer.

Wax: specific examples used is: hydrogenated soybean oil (HSBO); Partially hydrogenated soybean oil (HSBO); Partial hydrogenation palm-kernel oil (PKPKO); The candle with pigment and perfume compound based on business level soybean oil; The green ink pigment of standard green soybean.

Use Baker Perkins CT-25 screw rod to prepare composition, wherein region division is as shown in table 1:

Example 1-26 is used acrylic resin to make, and example 27-46 is used the thermoplastic polymer resin of other type to make.Except example 34,37 and 44, all examples all successfully form pellet.Notice, example 9,12 and 27 has slightly excessive wax, for example, in twin screw exit, noticed on a small quantity and gushed out, but be not enough to destroy strand bar and upset technique.Slightly excessive wax shows, the mixedness under this degree is insufficient, or polymkeric substance/Wax composition approaches saturated.Example 43 and 44 also comprises pigment and the spices joining in wax.

Example 1-43 illustrates in stable range and arrives polymkeric substance and the additive of limit test.As used herein, stable refer to that composition is extruded the ability with granulation.Observe, during stable composition, a thigh bar that derives from B & P25mm system can be extruded, quenching in 5 ℃ of water-baths, and via nodulizer cutting and without interruption.Twin-screw extrusion thing drops onto in water-bath immediately.

During steady extruding, without wax and the preparation strand bar separated (>99 % by weight makes it pass through nodulizer) of significant quantity.Can, by make polymkeric substance and wax separated from one another at twin screw end, record the saturation ratio of composition.The saturation point of wax in composition can change according to the combination of wax and polymkeric substance and processing condition.Actual work is with being, described wax keeps mixing with polymkeric substance and is not separated, and it is by the suitable mixedness disperseing of additive and the function of quenching speed.Wherein the extrudate unstable specific examples that comprises high-content wax that becomes is example 34,37 and 41.

Use 30 % by weight HSBO and add spices and pigment (for example Febreze Rosewood spices and coloured candle), embodiment 42.Every 20lb wax, joins a candle in glue tank, and hand operated mixing.Before adding, remove match.Candle comprises pigment and spices, and when end of processing, described pigment and spices are present in the composition pellet of formation like this.Example 43 is identical with example 42, and different is to open vacuum can remove how much spices or volatile matter to determine.Between the pellet so forming in example 42 and example 43, do not observe difference.

According to ASTM D3835, use capillary rheometer, at 230 ℃, adopt 30:1 kapillary, the shear viscosity of practical measuring examples 1-3 and unmodified polypropylene.

example with the goods of wax and nucleator molding:

According to the standard of ASTM D3641, carry out the injection moulding of sample.Molding sample on the Engel60 ton injection moulding machine that is equipped with the multiplex ASTM A528540 of surperficial gate mould, makes the sample with following size: radius is the disk of 31.25mm and thick 1.0mm; The V-type sample of thick 1.5mm, diameter 3.0mm and gauge length 125.5mm; The rectangle sample of thick 3.0mm, wide 12.5mm and long 125.5mm.With the closed loop water water cooler cooling die that can make mould balance to 65 ℉.Typical injecting condition is illustrated in table 2:

table 2

According to ASTM D256 standard, measure socle girder notched Izod impact strength.By aforesaid method, composition is injection molded into rectangle sample.Use band saw, take advantage of wide 12.5mm to take advantage of the rectangle sample of long 125.5mm to be trimmed to final 63.5mm thick 3mm long.Use the slotting machine of TMI model 22-05-03-001 in specimen width direction, to cut recess (TMI recessing tool, model 22-05-01-015-02).Under room temperature (approximately 23 ℃), on the digital pendulous device of TMI model 43-02-01-0001, measure prepared sample.

According to ASTM D638 standard, measure tensile property.By aforesaid method, composition is injection molded into ASTM V-type sample.In the Instron1122 model that is equipped with Instron61619 model 500N load sensor, measure prepared sample.All experiments are all adopted to the chuck speed of 0.8mm/s.

The summary of moulding compound and corresponding performance is shown in Table 3.

table 3

Use derives from the 35MFR(ASTM D-1238 of Braskem) the nucleation homopolymer polypropylene of the grade called after FPT350WV3 of narrow molecular weight distributions, molding example 44-51.Fig. 1 is that the figure of the gained socle girder notched Izod impact strength test of these materials is described.

Use derives from the 35MFR(ASTM D-1238 of the grade called after LX21018 of Total) clarification ethylene-propylene random copolymer, molding example 52-58.

The composition of any that can be in example 1-58 makes moulded parts.

All documents of quoting in embodiment are all incorporated herein by reference in relevant portion; Quoting of any document all may not be interpreted as approval as prior art of the present invention to it.In the literature, any implication of term or definition with any implication of same term in the document being incorporated to way of reference or define while conflicting, will be as the criterion to give implication or the definition of that term in the literature.

Dimension disclosed herein and value should not be understood to be strictly limited to quoted exact value.On the contrary, except as otherwise noted, each such dimension is intended to represent described value and around the scope being equal in this value function.For example, the dimension that is disclosed as " 40mm " is intended to represent " about 40mm ".

Although illustrated and described specific embodiments of the invention, it should be apparent to those skilled in the art that and in the situation that not departing from the spirit and scope of the invention, can make many other change and modification.Therefore, claims are intended to contain all these changes and the modification in the scope of the invention.

Claims (according to the modification of the 19th of treaty)

1. a moulded parts that comprises composition, described composition comprises following uniform mixture:

(a) thermoplastic polymer; With

(b) there is the wax that is greater than 25 ℃ of fusing points,

Described wax is scattered in described thermoplastic polymer, makes described wax in described thermoplastic polymer, have the drop size that is less than 10 μ m.

2. moulded parts according to claim 1, wherein said thermoplastic polymer comprises polyolefine, polyester, polymeric amide, their multipolymer or their combination.

3. moulded parts according to claim 2, wherein said thermoplastic polymer is selected from polypropylene, polyethylene, polypropylene copolymer, polyethylene and ethylene copolymers, polyethylene terephthalate, polybutylene terephthalate, poly(lactic acid), polyhydroxy-alkanoates, polymeric amide-6, polymeric amide-6, and 6 and their combination.

4. according to the moulded parts described in any one in claims 1 to 3, wherein said thermoplastic polymer comprises polypropylene.

5. according to the moulded parts described in any one in claim 1 to 4, the gross weight meter based on described composition wherein, described wax forms 5 % by weight to 40 % by weight of described composition.

6. according to the moulded parts described in any one in claim 1 to 5, wherein said wax comprises lipid.

7. moulded parts according to claim 6, wherein said lipid comprises monoglyceride, triglyceride, triglyceride level, lipid acid, fatty alcohol, esterified fatty acid, epoxidation lipid, maleinization lipid, hydrogenation lipid, the Synolac derived from lipid, sucrose polyester or their combination.

8. according to the moulded parts described in any one in claim 1 to 5, wherein said wax is selected from hydrogenated soybean oil, partially hydrogenated soybean oil, epoxidised soybean oil, maleinization soybean oil, Tristearoylglycerol, tripalmitin, 1, 2-bis-palmitinic acid olein, 1, 3-bis-palmitinic acid olein, l-palmitinic acid-3-stearic acid-2-olein, l-palmitinic acid-2-stearic acid-3-olein, 2-palmitinic acid-l-stearic acid-3-olein, 1, 2-bis-palmitinic acid linolein, 1, 2-distearyl acid-olein, 1, 3-distearyl acid-olein, trimyristin, trilaurin, capric acid, caproic acid, sad, lauric acid, tetradecanoic acid, palmitinic acid, stearic acid, and their combination.

9. according to the moulded parts described in any one in claim 1 to 8, the drop size of wherein said wax is less than 1 μ m.

Claims (10)

1. a moulded parts that comprises composition, described composition comprises following uniform mixture:

(a) thermoplastic polymer; With

(b) there is the wax that is greater than 25 ℃ of fusing points.

2. moulded parts according to claim 1, wherein said thermoplastic polymer comprises polyolefine, polyester, polymeric amide, their multipolymer or their combination.

3. moulded parts according to claim 2, wherein said thermoplastic polymer is selected from polypropylene, polyethylene, polypropylene copolymer, polyethylene and ethylene copolymers, polyethylene terephthalate, polybutylene terephthalate, poly(lactic acid), polyhydroxy-alkanoates, polymeric amide-6, polymeric amide-6, and 6 and their combination.

4. according to the moulded parts described in any one in claims 1 to 3, wherein said thermoplastic polymer comprises polypropylene.

5. according to the moulded parts described in any one in claim 1 to 4, the gross weight meter based on described composition wherein, described wax forms 5 % by weight to 40 % by weight of described composition.

6. according to the moulded parts described in any one in claim 1 to 5, wherein said wax comprises lipid.

7. moulded parts according to claim 6, wherein said lipid comprises monoglyceride, triglyceride, triglyceride level, lipid acid, fatty alcohol, esterified fatty acid, epoxidation lipid, maleinization lipid, hydrogenation lipid, the Synolac derived from lipid, sucrose polyester or their combination.

8. according to the moulded parts described in any one in claim 1 to 5, wherein said wax is selected from hydrogenated soybean oil, partially hydrogenated soybean oil, epoxidised soybean oil, maleinization soybean oil, Tristearoylglycerol, tripalmitin, 1, 2-bis-palmitinic acid olein, 1, 3-bis-palmitinic acid olein, l-palmitinic acid-3-stearic acid-2-olein, l-palmitinic acid-2-stearic acid-3-olein, 2-palmitinic acid-l-stearic acid-3-olein, 1, 2-bis-palmitinic acid linolein, 1, 2-distearyl acid-olein, 1, 3-distearyl acid-olein, trimyristin, trilaurin, capric acid, caproic acid, sad, lauric acid, tetradecanoic acid, palmitinic acid, stearic acid, and their combination.

9. according to the moulded parts described in any one in claim 1 to 8, wherein said wax is scattered in described thermoplastic polymer, makes described wax in described thermoplastic polymer, have the drop size that is less than 10 μ m.

10. moulded parts according to claim 9, wherein said drop size is less than 1 μ m.

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