CN1894340A - Polycarbonate polyester molding composition - Google Patents
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- CN1894340A CN1894340A CN 200480037823 CN200480037823A CN1894340A CN 1894340 A CN1894340 A CN 1894340A CN 200480037823 CN200480037823 CN 200480037823 CN 200480037823 A CN200480037823 A CN 200480037823A CN 1894340 A CN1894340 A CN 1894340A
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Abstract
A clear thermoplastic blend comprises from about 25 to about 90 percent by weight of low flow polycarbonate resin having a MVR (Melt Viscosity Rate) of from about 1 to about 7 cc/10 min at 300 DEG C/1.2kg and from about 10 to about 75 percent by weight of a polyester resin derived from the condensation of a cyclohexanedimethanol or equivalent thereof alone or with an ethylene glycol or equivalent thereof with a terephthalic acid or equivalents thereof or a combination of terephthalic acid and isophthalic acid or equivalents thereof.
Description
The cross reference of related application
The application requires in the right of priority of the U.S. Provisional Application sequence number 60/530516 of 18 submissions December in 2003, and document integral body is hereby incorporated by.
Invention field
The present invention relates to the transparent blends of polycarbonate and vibrin.
Background of invention
People's such as Scott U.S. Patent No. 5,942,585 relates to the transparent blends of polycarbonate and polyester, wherein this polyester comprises based on 1, the unitary dicarboxylic acid component of 4-cyclohexane dicarboxylic acid and comprise 2,2,4,4-tetramethyl--1, the unitary diol component of 3-cyclobutanediol.Can miscible polycarbonate polyester blends at people's such as A.J.Hill Free Volume approach to the MechanicalBehaviour of Miscible Polycarbonate Blends, J.Phys.Condens.Matter, 8,3811-3827 (1996) and at people's such as Stack Dynamic Mechanical and DielectricRelaxation Study of Aliphatic Polyester Based Blends, J.M.Polym.Mater.Sci.Eng. (1993), 69,4-5, Eastman Chemical Company, Kingsport is described among the TN 37662.People's such as Light United States Patent (USP) 4,879,355 relates to the transparent, oxygen-scavenging compositions that comprises following component: have the glycol copolyesters from the repeating unit of 1,4 cyclohexane dimethanol, terephthalic acid and aklylene glycol; Polycarbonate resin; With the aromatic polyester that has from the repeating unit of terephthalic acid, m-phthalic acid and dihydroxyphenyl propane.People's such as Allen United States Patent (USP) 4,786,692 relates to the blend of aromatic polycarbonate and multipolymer, and this multipolymer is derived from the glycol moiety that comprises 1,4 cyclohexane dimethanol and ethylene glycol.In these reference some have been described the properties of transparency of this thermoplastic blend.
People's such as Borman United States Patent (USP) 5,399,661 relates to polyester composition, and it comprises at least a straight chain, the reaction product of the mixture of branching or alicyclic C2-C10 alkane diol or chemical equivalent and at least two kinds of alicyclic diacid.This two acid mixture mainly comprises trans-isomer(ide) and at least a aromatic diacid.As described at the 5th hurdle the 41st to 45 row, " this reaction is generally under the excessive situation of diol component and carries out in the presence of suitable catalyzer
* *".People's such as Borman United States Patent (USP) 5,486,562 has also been described the impact strength modifier at the composition of type described in ' 661 patents.
The United States Patent (USP) 4,188,314 of Fox described with derived from cyclohexanedimethanol and-and the polyester polymers of the mixture of terephthalic acid add in the aromatic carbonate polymers to improve the solvent resistance of this polycarbonate article.
Other reference comprises patent 6,043,322; 6,037,424; 6,011,124; 6,005,059; 5,942,585; 5,194,523; With 5,017,659 and GB 1,559,230A.
The transparent blends of polycarbonate and polyester has attracting performance such as toughness and chemical-resistant.Wish to obtain to improve optical transparence can influence other hope sharply with good chemical-resistant performance.
Summary of the invention
According to an embodiment, the transparent thermoplastic blend comprises: about 25wt% has MVR under 300 ℃/1.2kg (melt volume speed) to about 90wt% and arrives about 9cc/10 minute low flow non-branching polycarbonate resin for about 1, with about 10wt% to about 75wt% vibrin, it is obtained individually or with ethylene glycol or its equivalent mixture with terephthalic acid or its equivalent or terephthalic acid and m-phthalic acid or their equivalent by condensation cyclohexanedimethanol or its equivalent.These two kinds of components exist in proportion that to have transmissivity with formation be 70% or the transparent blends of bigger (according to ASTM D1003).Before interpolation can influence this light transmissive additive such as mica, pigment, glass etc. this blend polymer being carried out transparency measures.Touching organic materials elongation at break afterwards can be improved significantly.Account for said composition the styrene-propene acid based copolymer of about 1.0wt% at the most by interpolation, can give this polycarbonate/polyester blend desirable enhanced chemical-resistant with a plurality of epoxy group(ing).Arrive the amount of about 1.0wt% or advantageous effects as obtaining under the amount of 0.5wt% about 0.05.
According to an embodiment, this blend mainly is made of these two kinds of components, and wherein the amount of this polycarbonate is that about 50wt% is to about 80wt% based on the gross weight of this blend component.Preferably, the amount of this polyester components is that about 20wt% is to about 50wt% based on the gross weight of this blend component.More preferably, this polycarbonate is that about 56wt% is that about 20wt% is to about 44wt% to about 80wt% and this polyester.
According to an embodiment, be added on that to have MVR under the 300 ℃/1.2kg be about 1 to about 9, the polycarbonate that is preferably about 2 to about 7cc/10 minutes more preferably about 2 to about 5 can be given desirable enhanced chemical-resistant.Also observe anti-lipid of enhanced and Virahol.Said composition shows lower gamut after gamma-radiation.
This vibrin prepares with this diacid or diacid chemistry equivalent component by condensation or this glycol of ester interchange polymerization or glycol equivalent component according to method well known in the prior art usually.This polycarbonate resin component prepares according to the related prior art of this paper.
Detailed Description Of The Invention
For clarity sake, following table 1 has been listed the implication of employed abbreviation in the whole specification sheets.
Table 1: be called for short
| Be called for short | Title |
| PC | Polycarbonate |
| CHDM | 1,4 cyclohexane dimethanol (trans/cis mixture) |
| EG | Ethylene glycol |
| TPA | Terephthalic acid |
| IPA | M-phthalic acid |
| PCTG | TPA+65-99CHDM+1-35EG |
| PCTA | 80-99TPA+1-20IPA+CHDM |
| MVR | Melt volume speed (Melt Volume Rate) |
Be surprisingly found out that, by use chemical-resistant that low flow PC improved this blend simultaneously the processing characteristics of this blend be maintained.
In one embodiment, this transparent blends comprises PC and PCTG or PCTA.Usually, when using PCTA, should use the PC of the more low flow in this scope and/or the PC of a large amount more.When using the more polyester of a large amount, for example 50wt% or higher uses low flow PC usually, and the polyester that preferred combination contains EG uses.
The preparation method of transparent/translucent moulding compound comprises: select the blend of low flow PC and PCTG or PCTA and wherein said component proportions to give improved chemical-resistant through selecting requirement in the composition compositing range of giving the clarification of gained blend or the transparency.
According to an embodiment, this PCTG/PCTA type present cycloaliphatic polyesters is an aromatic diacid, or chemical equivalent and aliphatic diol, or the condensation product of chemical equivalent.This diol component comprises that about 50 to 100 moles of %CHDM and 0 are to about 50 moles of % ethylene glycol.Typical condensation reaction comprises aliphatic diol with diol component, as contains 2 aklylene glycols to about 10 carbon atoms.With this cyclohexanedimethanol and this aklylene glycol, comprise terephthalic acid and m-phthalic acid as the hydrogenation of six carbocyclic dicarboxylic acid of ethylene glycol condensation.This acid constituents or its equivalent are preferably about 75 to 100 moles of % terephthalic acids and 0 to about 25 moles of % m-phthalic acids.
At preparation useful polycarbonate resin aromatic polycarbonate resin normally in the blend of the present invention.
In typical case, these are by making dihydric phenol and carbonate precursor, and reacting as phosgene, formyl halide or carbonic ether prepares.Generally speaking, this type of carbonate polymer be characterised in that have general formula-O-Ar-O-(CO)-repeated structural unit, wherein Ar is the divalent aromatic base, it is derived from the dihydric phenol that uses in the polymer production reaction.
The dihydric phenol that is used to provide this type of aromatic carbonate polymers is monokaryon or multi-nucleus aromatic compound, contains two hydroxyls as functional group, and each in them directly is connected on the carbon atom of aryl nucleus.Typical dihydric phenol is: 2, and two (4-hydroxyphenyl) propane of 2-; Quinhydrones; Resorcinol; 2, two (4-hydroxyphenyl) pentanes of 2-; 2,4 '-(dihydroxyl phenylbenzene) methane; Two (2-hydroxyphenyl) methane; Two (4-hydroxyphenyl) methane; Two (4-hydroxyl-5-nitrophenyl) methane; 1, two (4-hydroxyphenyl) ethane of 1-; 3, two (4-hydroxyphenyl) pentanes of 3-; 2, the 2-dihydroxybiphenyl; 2, the 6-dihydroxy naphthlene; Two (4-hydroxy diphenyl) sulfone; Two (3,5-diethyl--4-hydroxyphenyl) sulfone; 2, two (3, the 5-dimethyl-4-hydroxyphenyl) propane of 2-; 2,4 '-dihydroxy-diphenyl sulfone; 5 '-chloro-2,4 '-dihydroxy-diphenyl sulfone; Two-(4-hydroxyphenyl) sulfobenzide; 4,4 '-dihydroxydiphenyl ether; 4,4 '-dihydroxyl-3,3 '-dichloro-phenyl ether; 4,4-dihydroxyl-2,5-dihydroxydiphenyl ether etc.
Other dihydric phenol that is suitable for preparing above-mentioned polycarbonate equally is disclosed in United States Patent (USP) U.S.Pat Nos.2,999,835; 3,038,365; 3,33,154; With 4,131, in 575.
These aromatic polycarbonates can be made by known method, for example and as mentioned above, according to above-cited document and U.S. Patent No. 4, the method that provides in 123,436 is by making dihydric phenol and carbonic ether predecessor, as phosgene reaction, or pass through for example in U.S. Patent No. 3, disclosed ester exchange method in 153,008, and other method known to those skilled in the art.
If require to prepare polycarbonate blend of the present invention with carbonate copolymer or interpretation rather than homopolymer, use so two or more different dihydric phenols or dihydric phenol and glycol or with the polyester of hydroxyl or acid blocked or with the multipolymer of diprotic acid also be possible.In addition, the blend of any above-mentioned materials can be used for the present invention and puts into practice this aromatic polycarbonate is provided.
The preferred aromatic carbonate that is used for the present invention practice is a homopolymer, for example from GeneralElectric Company with business designaton LEXAN Registered TM buy derived from 2, the homopolymer of two (4-hydroxyphenyl) propane (bisphenol-A) of 2-.
Optimization styrene-acrylic copolymer is used for further improving chemical-resistant.This polymer-based carbon makes up the oligopolymer of block in having vinylbenzene and acrylate, wherein this structure block polymerization and have glycidyl as the hope of side chain introducing in solvent.This is aggregated in the continuously stirring reactive tank and carries out.Each oligomer chain has higher epoxy group(ing) numerical value wishes, this value is for about 10, be preferably greater than about 15, more preferably greater than about 20.When not having catalyzer such as sodium stearate type catalyzer, the polymkeric substance that contains epoxy group(ing) is preferred for polycarbonate polyester blends.Except having fabulous water stability, astoundingly, these blends also have fabulous transparency (being measured by fabulous percentage transmission).According to an embodiment, this material that contains epoxy group(ing) has greater than about 3000, be preferably greater than about 4000, the molecular weight more preferably greater than about 6,000.According to an embodiment, this material that contains epoxy group(ing) comprises polystyrene and acrylic acid series group.Various types of materials based on epoxy group(ing) have been used for this current research, as ECN 1299 (epoxy group(ing) cresols novolac resin), Joncryl ADR4368 (oligopolymer with styrene-based-acrylate of epoxy functional degree), JoncrylADR 4300, epoxy group(ing) soya-bean oil etc." Joncryl " polymkeric substance can be from JohnsonPolymer, Sturtevant, and Wisconsin obtains.This epoxy functional degree can make the chain extension of this system with end group reaction, and the result shows that MVR reduces.These blend polymers that contain epoxy group(ing) can keep the transparency of this blend more than about 70% transmissivity.
In addition, can in the present composition, add additive, as antioxidant, thermo-stabilizer, releasing agent, static inhibitor, whitening agent, tinting material, softening agent; Mineral substance as talcum, clay, mica, barite, wollastonite and other stablizer, includes but not limited to, UV stablizer such as benzotriazole replenish reinforcing filler such as thin slice or ground glass etc., fire retardant, pigment, other resin or their mixture.Normally, use can be introduced the different additive of said composition and be that those of ordinary skill in the art is known.The illustrative of these additives is described can be referring to R.Gachter and H.Muiler, Plastics Additives Handbook, 4thedition, 1993.
The example of thermo-stabilizer comprises triphenyl phosphite, three-(2, the 6-3,5-dimethylphenyl) phosphorous acid ester, three-(2,4-di-t-butyl-phenyl) phosphorous acid ester, three-(mix single-and two-nonyl phenyl) phosphorous acid ester, dimethyl benzene phosphonic acid ester and trimethyl phosphite 99.The example of antioxidant comprises octadecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl) propionic ester and tetramethylolmethane-four-[3-(3,5-di-t-butyl-4-hydroxyphenyl) propionic ester].The example of photostabilizer comprises 2-(2-hydroxy-5-methyl base phenyl) benzotriazole, 2-(2-hydroxyl-uncle's 5-octyl phenyl)-benzotriazole and Octabenzone.The example of softening agent comprises dioctyl-4,5-epoxy group(ing)-hexahydrophthalic acid ester, three-(carbonyl octyloxy ethyl) isocyanuric acid ester, Tristearoylglycerol and epoxidised soybean oil.The example of static inhibitor comprises glyceryl monostearate, octadecyl sodium sulfonate and Sodium dodecylbenzene sulfonate.
That one class comprises that preferably the stablizer of quencher provides is transparent/those of semi-transparent and colourless product.Usually, these stablizers preferably use with the level of 0.005-2wt% with the level of 0.001-10wt%.Favourable stablizer comprises the superphosphate of significant quantity; Acid, alkyl, aryl or blended phosphorous acid ester with at least one acidic hydrogen; The phosphoric acid salt of IB family or IIB family metal; Phosphorus oxyacid, metal pyrophosphate phosphoric acid salt or its mixture.Determining and can easily measuring by following of what specific compound will use with the suitability of used as stabilizers and as stablizer: prepare the influence to the formation of melt viscosity, gas generation or colour stability or interpretation of the mixture of this vibrin component and this polycarbonate and mensuration.This superphosphate comprises SODIUM PHOSPHATE, MONOBASIC, single zinc phosphate, potassium hydrogen phosphate, monocalcium phosphate etc.This phosphorous acid ester can have general formula V:
Wherein R1, R2 and R3 are independently selected from hydrogen, alkyl and aryl, and condition is that R1, R2 and R3 are hydrogen one of at least.
The phosphoric acid salt of this IB family or IIB family metal comprises zinc phosphate etc.This phosphorus oxyacid comprises phosphorous acid, phosphoric acid, Tripyrophosphoric acid or Hypophosporous Acid, 50.
This polyprotonic acid pyrophosphate salt can have general formula VI:
MzxHyPnO3n+1
Wherein M is that metal, x are that 1 to 12 numerical value and y also are that 1 to 12 numerical value, n are that 2 to 10 numerical value, z are that the summation of 1 to 5 numerical value and (xz)+y equals n+2.Preferred L is alkali or alkaline-earth metal.
Most preferred quencher is the oxygen acid or the acid organo phosphorous compounds of phosphorus.The mineral acid phosphorus compound also can be used as quencher, but they can cause the mist or the loss transparency.Extremely preferred quencher is phosphoric acid, phosphorous acid or their partial ester.
The example of releasing agent comprises pentaerythritol tetrastearate, stearic acid stearyl, beeswax, montanin wax and paraffin.The mixture of any above-mentioned additive also can use.These additives mix when can be fit to during this each component of mixing is with the formation composition.
In addition, can in the present composition, add glycol and/or polyvalent alcohol, comprise 2-methyl-2,4-pentanediol and poly-(propylene glycol).These additives are known can further to reduce this polycarbonate and the flavescence of polyester blend under gamma-radiation.Yet referring to table 2, these glycol and/or polyvalent alcohol can reduce the chemical-resistant of this blend.
The production of said composition can utilize any known blend that is used for the blend thermoplastics to operate for example blend in kneading machine such as Banbury mixing tank or forcing machine.The order of adding is not conclusive, but the blend fully of all components.
In order to prepare this resin combination, this component can be mixed by any known method.Usually, there are two kinds of different mixing steps: pre-blend step and melt-mixing step.In this pre-blend step, this dry ingredient is mixed.This pre-blend step uses rotating cylinder mixing tank or ribbon-type blender to implement usually.Yet if necessary, this pre-mixing can use high-shear mixer such as Henschel mixing tank or similar high strength equipment to carry out.Usually carry out the melt-mixing step after this pre-blend step, wherein this premixture be fusing and mix once more as melt.Perhaps, can save this pre-blend step, and starting material directly can be added in the feeding section of melt mixer, preferably add via a plurality of charging systems.In this melt-mixing step, this composition is usually in single screw rod or twin screw extruder, Banbury mixing tank, melt-kneaded in two roller mills or the similar devices.This example is to use the compounding of double-screw type forcing machine, and wherein the mean residence time of this material is that about 20s arrives about 30s, and the temperature of wherein different forcing machine sections is about 230 ℃ to about 290 ℃.
The second-order transition temperature of preferred blends is about 80 ℃ to about 150 ℃, more preferably about 90 ℃ to about 140 ℃.
Lower gamut and anti-a large amount of chemical moral character makes it be suitable for medical treatment, medicine and foodstuffs industry under gamma-radiation (typical method for disinfection), especially liquid conveying, drug conveying, surgical equipment, blood maintenance, kidney maintenance, home diagnostic, labware, pallet, hospital equipment shell, animal maintenance, drug packaging, food product pack etc.
Said composition can form end articles by known various technology in the field, as injection molding, extrude, injection blow molding, the auxiliary blowing of gas or vacuum forming.
Embodiment
The material of listing in following examples use table 2.Except as otherwise noted, all amount all is based on the weight percent of the gross weight of said composition.All the components all mixes to be incorporated in ribbon-type blender extrudes the formation pellet on the Werner-Pleiderer twin screw extruder under 260 ℃.Then this pellet is imported in injection molding machine with molding plate-like-test strip.
Test procedure
Optical property (yellowness index (YI) and transmissivity) is measured the thick plate of 3.2mm according to ASTM D1003.
Gamut (dYI) by measure the 3.2mm slab before gamma-radiation and YI difference afterwards measure.This back-γ YI measures during 1 week after finishing radiation.Typical γ dosage is that 25kGy (kilogray (kGy)) is to 75kGy.
This particulate melt volume speed (MVR) according to ISO 1133 (300 ℃/1.2kg, measure except as otherwise noted), unit is cm
3/ 10 minutes.
Chemical-resistant: studied the chemical-resistant of resisting various organic materialss.In water, the composition (being buffered to pH is 8.3) with 10% Thistle oil, 10% soya-bean oil, 1.2% Yelkin TTS, 2.5% glycerine is tested.This test is carried out according to ISO 4599.Use following test condition: the time length of test: 96 hours; Probe temperature: 23 ℃; The constant strain of using: 1.5%.Contact method: at the supermedial saturated fabric of tensile bars.After this test, estimate the appearance change of this tensile bars according to following classification: the A. no change; B. microgroove and/or cracking; C. fracture.After this range estimation, carry out according to the Elongation test program of ASTM D638 standard to measure physicals.If should be equal to or greater than 80% by the stretching retention rate, think that then this sample and chemical preparations are compatible (or chemicals-resistants); If should the stretching retention rate between 65% and 79%, think that then critical (marginal) is compatible; And if should be lower than 64% by the stretching retention rate, would then think inconsistent.Use 70% Virahol (IPA) aqueous solution, the same program of carrying out in above-mentioned elongation and the range estimation is 72 hours except the time length.
Tensile elongation: material is resisted the ability of fracture based on ASTMD638 under tensile stress.Common injection mould sample.This stretching testing machine draws this sample and measures this sample is drawn back the degree of splitting needed power and sample stretching, extension before fracture from two ends.The elongation limit of plastics is percentage that length increases before this plastics fracture under tension force.
Following table provides the test result of explanation present composition superiority.MVR and polycarbonate are compared with extraneous composition (for example embodiment 7 and 13) with the composition of polyester in claimed range better chemical-resistant are provided.With typical radiation-stablize polycarbonate (for example Makrolon Rx 1805, and it produces 10.5 YI displacement under the same conditions) to compare, all composition exhibiting show lower YI displacement after gamma-radiation.Gamut preferably less than about 6, is more preferably less than about 5.
Table 2. embodiment
| Embodiment # | PC | Polyester | ADR 4388 (wt％) | The γ stablizer | The result | |||||||
| Back 25kGy gamma-radiation YI displacement | Oil-proofness | Anti-70%IPA | Transmissivity (%) | |||||||||
| MVR | wt％ | Eastar PCTG 10179 * (wt％) | Eastar PCTA A150 ** (wt％) | |||||||||
| Elongation retention (%) | The range estimation grade | Elongation retention (%) | The range estimation grade | |||||||||
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | 2.7 2.7 2.7 6.8 6.8 6.8 11.5 2.7 2.7 2.7 2.7 8.8 11.5 2.7 2.7 2.7 2.7 2.7 | 74.6％ 49.6％ 24.6％ 74.6％ 48.6％ 24.6％ 73.％ 74.5％ 74.1％ 49.5％ 49.1％ 74.5％ 72.2％ 49.4％ 49.2％ 69.6％ 49.6％ 24.6％ | 25％ 50％ 75％ 25％ 50％ 75％ 26.3％ 25％ 25％ 60％ 60％ 25％ 26.3％ 50％ 50％ | 30％ 50％ 75％ | 0.10％ 0.50％ 0.10％ 0.50％ 0.10％ 1％ 0.10％ 0.10％ | I 1 II 2 | 4.8 2.2 1.6 4.8 2.4 1.9 3.9 5.6 4.8 3 3 5.1 1.2 1.2 5.6 1.3 1.4 | 129％ 96％ 93％ 65％ 66％ 120％ 5％ 125％ 118％ 113％ 135％ 102％ 7％ 94％ 91％ 84％ 94％ 75％ | A A A A A A A A A A A A A A A A A A | 102％ 130％ 9％ 85％ 26％ 6％ 8％ 127％ 118％ 80％ 117％ 65％ 12％ 40％ 7％ 100％ 16％ 91％ | B B B B B B B B B B B B B B B B B B | 88％ 88％ 88％ 87％ 86％ 87％ 88％ 88％ 88％ 88％ 87％ 88％ 87％ 88％ 87％ 87％ 87％ |
*100% terephthalate and 80 moles of %CHDM+20 mole %EG
*83 moles of % terephthalate+17 mole % isophthalic acid ester and 100%CHDM
1I:0.1wt%2-methyl-2, the 4-pentanediol
2II:0.33wt% gathers (propylene glycol)
MVR and polycarbonate and the composition of polyester in claimed range and extraneous composition (for example embodiment 7 with) are compared better chemical-resistant are provided.
Claims (10)
1. transparent thermoplastic blend, comprise: about 25wt% has MVR (melt viscosity speed) to about 90wt% and arrives about 7cc/10 minute low flow polycarbonate resin for about 1 under 300 ℃/1.2kg, with about 10wt% to about 75wt% vibrin, it is obtained individually or with ethylene glycol or its equivalent mixture with terephthalic acid or its equivalent or terephthalic acid and m-phthalic acid or their equivalent by condensation cyclohexanedimethanol or its equivalent.
2. according to the transparent thermoplastic blend of claim 1, wherein said two kinds of resins exist in proportion forming transparent blend, and it has 70% or bigger transmissivity and have 65% or bigger elongation at break after the contact organic materials.
3. according to the transparent thermoplastic blend of claim 2, wherein by interpolation account for said composition at the most approximately the styrene-propene acid based copolymer of 1.0wt% with a plurality of epoxy group(ing) given this polycarbonate/polyester blend desirable enhanced chemical-resistant.
4. according to the transparent thermoplastic blend of claim 3, wherein this blend mainly is made of these two kinds of resins, and wherein the amount of this polycarbonate is that about 50wt% is to about 80wt% based on the gross weight of this blend.
5. according to the transparent thermoplastic blend of claim 4, wherein this blend mainly is made of these two kinds of resins, and wherein the amount of this polyester components is that about 20wt% is to about 50wt% based on the gross weight of this blend.
6. according to the transparent thermoplastic blend of claim 5, wherein said polycarbonate has about 2 to about 7cc/10 minute MVR under 300 ℃/1.2kg.
7. according to the transparent thermoplastic blend of claim 6, wherein this blend shows lower gamut after gamma-radiation.
8. according to the blend of claim 2, the styrene-propene acid based copolymer that wherein has a plurality of epoxy group(ing) accounts for about 0.05wt% of said composition to about 1.0wt%.
9. use the moulded products of the composition of claim 1.
10. use the moulded products of the composition of claim 3.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53051603P | 2003-12-18 | 2003-12-18 | |
| US60/530,516 | 2003-12-18 | ||
| US10/979,614 | 2004-11-02 |
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| Publication Number | Publication Date |
|---|---|
| CN1894340A true CN1894340A (en) | 2007-01-10 |
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ID=37598234
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480037823 Pending CN1894340A (en) | 2003-12-18 | 2004-11-15 | Polycarbonate polyester molding composition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104254569A (en) * | 2012-04-27 | 2014-12-31 | 株式会社钟化 | Polycarbonate resin composition with superior fluidity and molding thereof |
| WO2017075751A1 (en) * | 2015-11-02 | 2017-05-11 | Sabic Global Technologies Bv | Polymer alloy compositions and application to medical systems and methods |
-
2004
- 2004-11-15 CN CN 200480037823 patent/CN1894340A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104254569A (en) * | 2012-04-27 | 2014-12-31 | 株式会社钟化 | Polycarbonate resin composition with superior fluidity and molding thereof |
| WO2017075751A1 (en) * | 2015-11-02 | 2017-05-11 | Sabic Global Technologies Bv | Polymer alloy compositions and application to medical systems and methods |
| CN108291079A (en) * | 2015-11-02 | 2018-07-17 | 沙特基础工业全球技术公司 | Polymer alloy composition and application for medical system and method |
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