MXPA97008125A - Method and compositions for hardening polyes resins - Google Patents

Abstract

An acrylic modifier composition is provided to improve the impact resistance of polyester compositions comprising between about 10% to about 90% by weight of a first component selected from the group consisting of an ethylene / alkyl acrylate copolymer and ethylene / alkyl methacrylate copolymer, wherein said alkyl is C1 to C10, and between about 10% to about 90% by weight of a second component selected from the group of terpolymers consisting of ethylene / alkyl acrylate / methacrylate glycidyl, ethylene / alkyl acrylate / glycidyl acrylate, ethylene / alkyl methacrylate / glycidyl acrylate, and ethylene / alkyl methacrylate / glycidyl methacrylate, wherein said alkyl is C1 to C10, polyester compositions cured by the addition of the modifier composition, as well as articles molded from these compositions and methods for forming these compositions Poliést

Description

METHOD AND COMPOSITIONS FOR HARDENING POLYESTER RESINS FIELD OF THE INVENTION • The present invention refers generally to resin1, poL-ester, and speci fi c to compositions, additives, and methods for reaping-such resins, to provoke i? S I na < . oo n c ua 1 i da do s < I eat him »1 e ..

Lü BACKGROUND OF THE INVENTION Pion has been known in general to use olefin impact modifiers in polo + oror compositions to provide molded articles having 1 i. Improved mechanical properties and impact resistance? The improved patent The patent of r.U.fl. No.,., L? 2, Hf. (-) claims methods of poln.st.er and include polymers of o ti Leno / acp lat or de metí lo / acp lato de gUcidi Lo. The patent do rUÍ-1 NO. / F.;., (3ü (J refers to coroposi c one1 de oli teico < jue compreon bQ-lUZ by weight a polystyrene (v. r ", end and / or P! D and 3 to 40% on one of an ointment coater of the formula L / X / Y, where E is a rad! "formed from the full, and is selected from the group that consists of a glycidic metaplatum and a" chliddyl "acupuncture, and X is a radical and urinated apr - do - - - 0112 - - 0 i11 - 0"- - 0 - R1 wherein l is alkyl of 2 to 0 0, and R2 to H, CH3 or C2H5 - lists' compositions contain a polymer of o - 1 leno / acp 1 ico where R1 Radical form X is methyl, This patent refers to modifiers of Leno / acr 11 at o of Put 1 the / metacp lato of iicLdi io superior to the modifiers of ot 1 leno ?? ™ t acp lat / rnet acp lat or gl icidi lo at temperatures 11) 1 nor op ore,. La? A < e n < or from r. U "í .. No. b, 17 h, 204 refer to 1 or thermoplasic ream compositions comprising an aromatic polyester and from 1 to 50% by weight of a non-woven polyester. multiple phases, which is a 15% to 95% graft copolymer in the presence of an octopus flake that contains opoxy groups and 95% of a polymer or vinyllum flake obtained In addition to at least one monogram of the instrument, these and other compositions of the foregoing text are used as materials for industrial parts, parts for electonic and electric machines, parts for automobiles. etc. See also the patents of FDR os, 4, 140,670,: ¡/.bB, (.-) 05, Ro 32,334, 4, 499,739, 4,694, 042, 5,407,706 and ! 5, f) 4 'J, 464, e nt 1 - or < r .. 15 I persist a need in the technique for res as based on pol es er that have the improved qualities of hardness, that is, resistance to impact, as well as properties of melt flow or make possible the use of them in rins molded.

BRIEF DESCRIPTION OF THE INVENTION b. In one speci fi cation, the present invention provided modi fi cation modi fi cations to improve the impact resistance of polystyrene compositions. Said Modular Modifier Opositions (m) Approximately 10% to about 90% by weight of a first component selected from any of the copolymers of ethylene alkyl actable and ethylene alkyl methyl; and (b) enter about 10% to about 90% by weight of a second component selected from Ib e erpoi irneros de e + i leno / acra lato de a 1 qui Lo / inetacp lato de glloidJlo; t-, t i 1 ono / acri 1 ato de Lqui Lo / acri 1 ato de qlicidilü; eti eno / inet aei i la + o do alqui lo / acp lato de gl i wi i lo; and et i 1 ene / met acp LaH. from 1 to 1 o / motacp 1 ato de glycidi o. In another aspect, the invention provides a polyester composition having improved characteristics of impact resistance, comprising between about 40 and about 90% by weight of the total composition of a polyester resin containing polyester and amounts thereof. minor of 'additives; enter approximately 10 to approximately. 50% by weight of the modifier composition described above, from 0 to about 50% by weight of the total polystyrene composition of a resolving agent and of about 20% by weight of the total composition of a flame retardant composition,. In yet another aspect, the invention provides a molded manufacturing ingredient made from the polyester composition prepared in accordance with an additional aspect, the present invention is a method for increasing firmness and Resistance to the impact of polyeste resins, which I intend to add a modified chlorine composition to a polyester res- tore as described in the table below. In another aspect, the classical method and the steps of providing a polyester resin, (b) a modifying composition of this invention, (c) a reinforcing agent.

Optional Ib and / or filler-, and (d) an optional flame retardant composition; enter (a), (b), (c., and id) either indi idually or < on a mixture in an extruder. Ln? -L extruder, the mixture of (a), (b), te) and (d) is melted at a temperature higher than the melting temperature of the (1 | olio tr, and is extruded as a mixture. The extruded product is subsequently cooled to lower the temperature of the product and solidify the mixture.A final step includes physically reducing the size of the solid polyester composition, say, the formation of pellets., Other aspects and advantages of the present mvoncLon are described in the detailed description below and in the rex vations- BRIEF DESCRIPTION OF THE DRAWINGS b Figure lf. a scanning electron micrograph (SEM) of a torpolirnero useful in this invention, ie a lime terpene of ethylene / acp the < or rnet i lo / et acp lat de gLicidilo. The < -? rnpL? ation is 2000x. L-sto to i-pol joins a homogeneous composition. I do not even know fluff 'Les basso ni de pai t i cul s. Figure LJD is an SEM of a Limero flake of o < i lono / acp. lat or methyl useful in this invention. The amplicon is 2000x »This eopolar is a homogenous composition. It is neither of multiplies (aces or particles.) Ib Figure 7 is an SEM of a polyether composition containing ITT with glass fiber and b% on weight of copolymer of ot to lone / acp lat or ethyl (EE). .) .. This composition demonstrates poor adhesion to the Pl "1 matrix of the impact modi fi er (copolymer) of EEfi) uses * lo, and a Average particle size of more than one miera. Figure 3 is an SEM of a polystyrene composition containing PET with pound of glass and 20% by weight of a polyethylene oxide / acrylate of inert acid / ethyl acetate. This SE demonstrates good adhesion to the r-PET matrix, and an average particle size of less than one daughter-in-law. Figure 4 is an SEM of a glass fiber PET polyester composition and 70% by weight of a metallic polyethylene oxide / ethylene isolate. This SE.M shows part Lc? The lengths with a size of more than one daughter-in-law and a poor adhesion to PET ,, b Figure b is an SEM of a polyester composition with formulated with The invention, which contains PCT with fiberglass and an impact modifier of 4% by weight of an ethylene / ethyl acrylate / inertol / me + acrylate of glycidol and 16% by weight of a nonionic copolymer. i leno / aep Lato -le 10 methyl. This SFM shows an average particle size of about one meter, a spherical particle shape and good adhesion to the poly ester.

DESCRIPTION OF THE INVENTION Ib The present invention provides a novel impact modifying composition which, when added to certain Li-ester compositions which can be molded into articles such as auto parts, etc., increases the resistance to abrasion. impact of such articles, that is, hardens these compositions. Par tularly, the modi? Er compositions of this invention make possible the provision of a polyester composition or resin characterized by an increased impact strength with a minimum effect on solvent resistance of the poi ester compositions. The molded article resulting from the polyester compositions of this invention also has a relatively high rupture elongation and a good ileumion modulus, as used herein, the term "Modification of Acrylic" or "Impact Modifying Composition" refers to a two-component composition of the copolymer / copolymer described in detail below. Oorno -e use in? < Present, the term "polyester resin", is read or even polyester or quartz compounds with a < "minor amount of additives, not including composition . Replenisher of the sheet or replenishing agents or fillers, as defined by the term "polyester composition" or "total composition" as used herein. "refers to a novel composition of the invention containing an Ib poLiester resin, the impact modifier composition of this invention and" Linent "or" including retardant ", flame and reinforcing agents < - > fillers, as will be described, &nt; n dot.il the po iormen e.

I. Impact Modifier Composition One aspect of this invention is a novel impact modifier composition for addition to reams or compositions of polystyrene, which are designed to be molded at high temperatures and create articles that are ideal for the hydrolysis and impact resistant desired industial. Such novel impact modifier compositions are formulated to contain components, a coppermer and a terpolmer. Each component can form between about LC) to about 0% of the composition of the oidora composition, and the copolymer component is either a lemon flake or an alkyl acrylate or a nonionic copolymer. The alkyl component of the acrylic or meta-plate polymer in any polymer desirably comprises 1 to 10 carbon atoms.

Preferably, the filler pole of the nickel copolymer or the metacplate of the dye copolymer is a metal acrylic or rnetal acrylic filler. Was the song, the copol and me? I am comparing at least approximately 10% in terms of the alkyl ac aclate or met ac ac or alkyl, the balance being ol polymer Ib of full et. It is available to trade L ent e a variety of said clothes! uñeros that have scales of molecular weight a de c u. the s Mn - "1, 000 to '10, 000) or i s co s i.

. Indicate fusion of 1 -300 g / 10 inmutes to L (-i0 ° ü / 2"16 kg). The appropriate commercially available labeling devices are the 0 copolymers of methyl ethoxylatene sold under the name, commercial I.OT and 2L} ) MH03 Í Lf Atochen. "And other co-sellers sold as PRIMRCOR 1420, 1430, 1410 XT or 5980 I Dow 0 hem i ca LJ; EMHC (, P 22 ü 5 v 220? LC he ro n 0 hern i oa L Oe.]; The NUCRCL product line [DuPont l; and ÜPTEMR TC-L1L [Exxon 5 Ohe? N? <: al l, entr-e other '- ,,, The terpolin component of the composition The modi fi er is selected from a proprietary copolymer to a liquefied material or to a liquefied metal or a glyceryl acetate. The alkali metal layer of glycidyl, and of the metal / methacrylate of the glycidyl acetate / ethyl acetate, the alkyl component of the acrylic polymer or ethyl acetate, or of the silicate metal It is most likely to have between 1 and 10 carbon atoms. Firstly, the first one is an alkyl ethacrylate, and the other is a metal acrylic. 0 or methyl methacrylate.Preferably the olymer comprises approximate entr-e 1 to about 15% by weight of the glyceryl aureate or glacial metalate, and between about 1% to about 15% by weight of the alkyl acnlate or alkyl metaplate, the balance being the! units full. A variety of such agents that have adequate molecular weight scales are available (M "'10, 000 to '70,000). The available commercially available polymers include an ethylene terpolymer, or lat. of the Glycidyl product sold under the brand names LOTADFR AX8 < 300, AX892U, flXHfafall, HX I) b 0, Í1X 8 ü 7, AXG 040 LEÍ f A oe hem I The copolymer and terpolunero components of the molding composition are characterized by a uniform structure (see Figs LA and IB). Unlike other technical impact modifiers, these numbers do not have a multi-phase structure.

As will be clear to a person skilled in the art, from the levision of this specification and particularly of the examples thereof, a variety of such modifier compositions can be designed that fall within the parameters of the components of the invention. it is + a description. In the polyester compositions of this invention, the fetal amount of an impact modifier composition as defined above forms at least 1% of the total composition. The impact modifier compositions can form 20% of the total composition in other embodiments and in certain applications, can form up to 50% by weight of the total polyester compositions. The advantages of the modifying compositions of this invention include providing an acceptable viscosity to the composition of the total polystyrene. In practical terms, said modifier compositions are also effective in terms of cost < Compared with modifying wineskins of the prior art.

II. Polyester Compositions In this way, polymer compositions are provided which incorporate the impact modifier compositions described above. íopnent e. In general, such polyester compositions are defined with a polyester composition having improved impact strength characteristics and containing the following components. (a) Approximately 40 and approximately (-) 0% by weight of the total composition of a polyester resin containing a polyostor and minor amounts of additives; (b) Approximately 5 to about 25% by weight of the total composition of a component selected from the group consisting of the copolymers described hereinabove; (c) between approximately 5 to about 25% by weight of the total composition of a polyethylene as defined above < later, (cj) from 0 to about 50% in e < , or Ae l o. total composition of a reinforcing agent; and (e) approximating 20% by weight of the total composition of a flame retardant composition. As is clear from the above description of the impact modifier composition, the components (b) and (c) of the polyester composition form the impact modifying composition of the invention. Desirably, then, the total amount of the impact modifying composition in the total composition (i.e., components (l >) and (c)) does not exceed 0% by weight of the total weight of the composition described above. . Also, preferably the total amount of the impact modifier composition in the polyester composition does not exceed 30% in proportion to the total weight of the polyester composition. In another embodiment, the total amount of the modi fi ed composition of impact in the composition of polyes + er does not exceed 20% by weight of the total sediment L2. of the composition of polioster. According to this embodiment of the invention, the composition of polies * 01 can be used any number of emiopyric poly esters that are known to be suitable b for the moly to prepare part'-. Such polymers must have adequate stability to the molding conditions as is well-known to those skilled in the art. A suitable polystyrene can be selected from polyethylene terephthalate (PET), polypropylene (PI) erectile (P), poly (otilen, b-naleat) (PFN), bibenzoate naphthala + o of r'Ol lot i loño (PENDÍ!), poLi (L, 4 - c cl ohexanodimet anoL terortartato) (PC f), terephthalate of polypropylene (PPT), naft alat o de fiel i bu < i Log (PBN) and liquid crystalline polymers (LCPsJ such as, for example, the LCP brand VECTRAR (Hoechst Celanese 1. Ooi'po i-at i in, Somerv111, NJ). suitable are copolyester such as, for example, poly (1,4 eicl ohex i 1 end i inet i t ion f ato-co-1 so thalate), pol i (et il in tereftaLato co-etLlen naftaLato ( PE1NJ, and the like I. "L PL £ T and PBl are the most preferred due to their high availability, as well as the fact that the molding of such resins is well known in the industry. The above-mentioned listings may also be suitable for the poly-ester compositions of this invention, preferably including two b-by-two mixtures of polyester esters.The t-axis mixtures are or more polyesters may also be used. L3 The components are formed by a ratio of approximately 50 to 50% by weight of the mixture tot a i. For example, a preferred mixture ut i l in this invention has an axis ratio between approximately b to about 25% PET axis and b approximately e? Rz > to approximately 35% of PBT, other ingredients are absent, additionally, such polyester reams or resin mixtures can > "To have smaller quantities of other polyester materials, such as polycarbonates," -? poli í-em Le o, pol? Ar? lat o, pol Lick and simi lares and mixtures ele The same conditions are characterized by inherent viscosities, ie, at least 0.4 as measured by ASTM D-2857, and by no more than 10% by weight. 1.4. The Ib components (b) and (c) of the modifying composition of this invention are very useful with PEI alone. The well-part of the polyester resin of the polyester composition are the conventional additives known in the art. . Some < They include, for example, antioxating agents, stabilizers, lubricants, nucleic agents, dyes, mold-axis release agents, ultraviolet light stabilizers and the like. Examples of suitable oxidants include phosphites. Examples of suitable stabilizers include epoxy ream based on bis b phenol A. Examples < Je suitable lubricants inc Luyen ceras ole end leas. Examples of suitable nucleating agents include < -OCILO "Additives that improve the physical properties can also be used, including those that improve the tensile strength and other desirable physical characteristics in said reams. Some of these epistemic features are listed in b in Table 1 below. These additives are present in relatively minor quantities and do not affect indefinitely. The desired characteristics axis The finished products. In addition, the additives are present in an amount approximately approximately 5% of the composition. total. A separate and optional component of the composition of pol? This? It is a flame retardant composition or packaging used at a conventional level. Generally, such flame retardant compositions include a compound which 1. contains bromine (such as polycarbonate or bromide, decabromodium phenol oxide, brominated brominated acine, brominated polystyrene, etc.). Such compounds are available cerne i - < - 1 year, from Ethyl Chemical Corp., Great Lakes Chemical Corp., Sea Turtle Co., etc. Also part of the oinpaquo M) Flame-axis retarder is synergistic, typically eg, anti-onium oxide, zinc oxide and an unoma or sodium, among others known the < 'i the technique. There is a third component in the flame retardant composition such as asbestos, teflon and the like.The compositions suitable flame retarders are known in the art and the selection of components. The same does not limit to the Ib I present invention. If a flame retardant composition is present on 1 < ? The polyester composition of this invention is present in a percentage in weight of the total composition of from about 0 to about 20%. b Also ele 1 < The impact modifier and The components that are detailed in detail above, the total polyester co-option may include reinforcing agents or lumberjacks. Generally, such refoicing agents or fillers must be present at the Total Composition Approximately 0 to Approximately 50% by Weight of the Total Composition The reinforcing agents or thermally stable reinforcing fibers used in the invention can be any of said agents or fibers that are thermally Ib stable in the conditions normally used for production axis products from molding compositions <Polystyrene, Suitable reinforcing agents include, for example, glass fiber, asbestos fiber, carbon fiber, ceric fiber, fibrous potassium titanate, iron fibers and the like. Glass is the most preferred. Although fiber is the most prefered form for the forcing agent, other suitable forms can also be employed in the practice of the invention. When using forcing fibers, such fibers should normally have shaft diameters between about 5 and about 30 microns, typically 10-21 pin, and preferably 11-16 jill. The aspect relationships Ifi (ratio of the length Ae The fiber to the diameter of the fiber) are desirably at least about 5. The reinforcing fiber typically has a length generally of 1-10 in., preferably 2-6 mm and very preferably from .1-5 inm. b The glass fibers, when used, preferably have inlet diameters of approximately 10 and approximately 15 microns and axle aspect ratios of at least about 20. II 1 t gent / i 11 > r i? f O r; ' to do i * win p 1 or on 1 to 0 composition of the poliostor gene ally in a range of approximately 3 to approximately 50 poi Lien or by weight, based on the total weight of the total polyester composition, typically 10 -35 percent by weight and ?? It is 10-30 percent by weight. As commonly recognized, the use of such reinforcing agents / fi bers improves substantially physical properties such as tensile strength, flexural strength, flexural modulus and heat distortion temperature of the composition: ion ele pol lester. Ll glass? Other agents and fibers for use in the invention can be incorporated into the composition in any suitable manner, such as by extruding separately by mixing with polyester ream, extruding by blending with other ingredients of the compositions of the invention. by not incorporating in the ream or composition of polystyrene the product is molten by injecting the products of the polyurethane composition.

Suitable fillers include, but are not limited to, mica, talc, clay, iioxide, and the like. There may be variants within the scope of the Filler axis, such as, for example, Muscovite-type mica (supplied by KMG, ínc), the phlogopite-type mica (Suzopte, Inc.) and sumlares. The filling of the filler particles is on the general scale of 20-500 μin, typically on the scale of 30-100 j.iin and preferably 40-6C) μm. The woodcutter is generally employed in the polystyrene range in the range of 15% by weight, typically 7-25 weight percent and preferably 10-20 weight percent. In a preferred embodiment, a polyester composition of the present invention contains approximately 61.5% by weight, the total PET composition with approximately 3.5% additives. Approximately 16% by weight of the total composition is the first of the 1 ethylene oxide / methyl acrylate. Apr-ox 4% by weight of the total composition is the ethylene / ethylene tappe nt Lato de rnet iio / met a. i i lat de gLicidilo. Finally, approximately 15% on weight of the total composition is fiber glass shaft. This composition is characterized by an impact strength of about 0.190 L / g / n / c / n. As will be obvious to those skilled in the art, other compositions that fall dent or can easily be prepared. of this description going to the teachings of the present. Useful compositions can have a variety of 1 Characteristic, depending - I read the use of the composition of poLiester par-a molding. The main characteristic of the composition is a good resistance to the impact of grooved or non-grooved Ir.oej (ASTM D-256). Generically, the higher the Izod measurement is, the better. However, other characteristics that are important in the use of these molding compositions are tensile strength, elongation at rupture and stress level; as indicated by- A STM U-bJE !; the viscosity measured at a shear rate of 1, 000 sec-J- to 2üü ° C, flexural strength and flex modulus' U-ISIM U-700) and heat deflection temperature f STM D-648) ,. Such characteristics are conventional in the art. Generally, the polyester compositions of this invention are useful in the preparation of molded articles for shaft manufacture, including without limitation, automotive screens, auto parts, industrial plumbing and other parts p- -a with- truct ion.

III. Methods for preparing the modifier compositions, the polyester compositions and the molded articles The polyester compositions of this invention are prepared by conventional methods. The impact modifier composition can be prepared by first mixing the components dry. For example, with respect to the composition of the impact modifier, the copolymers and the terpol ueros can be combined or simply dry mixed at 1'-) Any convenient and at ambient temperature. In this way, the impact modifying composition and its components can be combined and sold as a mixture or machine. It can be added to the polyester system during In the alternative production, the individual components of the modifier composition can be mixed in direct dryness with the components of the polyol ester reagent, the other ingredients of the composition. Polyester axes may also be added, In order to prepare the molded compositions of the invention, the reinforcing fibers may be intimately mixed in L re s by the stiffener by any means or by any other material. such as dry combination or melting combination, mixing in extruders, hot rollers or other types of mixers, etc. They can also be used as conventional main load leas. Do they apply for the addition of the other ingredients esenc? alec? optional elements of the composition of the invention, specifically including an inert filler for a replenishing aspect, reordering agents, polyester compositions, etc. Suitable techniques of mixing and molding are known in the art and need not be described in detail herein. The extrusion may be carried out in a suitable extruder, such as, for example, a solid shaft extruder with a feed capacity in a downstream direction. Many extruders of this type are commercially available, such as, for example, the double-worm extrusion machine of 40 millimeters. The mill can be fed with the resin and the aforementioned additives. In the main alunentador while the glass is fed downstream, The temperature of the machine is maintained an adequate level above the melting point of the selected oli esteros lü. For PET, for example, the temperature may vary from 260-300 ° C, the material is mixed and then ex * noise in a suitable form, such as pellets. The pellets can then be molded by injection to form suitable parts. Ib In a modality uttered axis The invention, l? The polyester composition of the invention is mixed by dry blending the polyester resin, the reinforcing agent and / or lender and the impact modifying composition, followed by mixing in the inside of the extruder to a 0 emperature that exceeds the axis point of rotation The polyester surface, is to be executed, with temperatures of barrel L axis in apr-oxirnadarnente 260 and approximately 30Ü ° C. Similarly, for molding products the invention from the polyester compositions for molding of the invention, injection molding is preferred. When injection molding is used, the preferred temperatures are between 200 and 290 ° C, preferably between 200 and 290 ° C. you give. In a preferred embodiment, the polyester axle composition for molding the invention is urine by extrusion and pellet. The pi-oducts < The invention is then produced by the injection molding of the pelletized extrusion product. In yet another alternative, the individual components of the modifier composition can also be added to the extruder separately from the reams of ther- mo poly and other components of the polymer composition. components can be mixed to rinse the mixture before Ae cool. There are a number of alternative manufacturing steps that can be employed with the compositions of this invention. Such manufacturing steps are designed to be encompassed within this invention, since they are (routine) Ib par-to an expert in the technique of the preparation of such cernposi cienes. Finally, when the poly ester compositions of this invention containing the modifier compositions are obtained by the end user, they can be dried by any conventional method, melted and molded to form a number of industrial products. They are useful as described above The following examples illustrate the preferred compositions and methods of the invention These examples are only illustrative and do not limit the scope of the invention, "sludge percentages are by weight, unless otherwise stated. Indicate otherwise.

EXAMPLE 1 Comparison of Impact Modifier Compositions In the following studies, a variety of impact modifier compositions were studied, or they were composed of a composition of polystyrene consisting of polyethylene + filler and additives. conventional, and 15% fiberglass as an agent + or reinforcer. The modifying modus operandi. I joined 1 in the percentages indicated in column 1 of each of tables 1 and 2. For the purposes of the axis the data reported in tables' - / 1 and 2, tests of ASTM standard Les in the composition of polyester were conducted .. For example, viscosity was reported J b a u n o ve 1 o c i da d e s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s Tonsil resistance and resistance to f lexion is reported in k-I-g / cm2, elongation at rupture is reported as a percentage; the tension module and the flexure module are reported in rn-kg / e? t.2. The results of the impact of grooved and non-grooved Izod are reported in kg ..? n / cm.,, the heat-deflection axis temper- ature ((ie, deflection tem- perature under load) is reported at 10.55. kg / cm * and reported in C > A and 4.64 kg / crn2 is reported in ° C2. These features are tested using the < He tested ASTM identified above .. 5 The following components are used in Tables 1-2 below. Component A represents a commercial composition of ethylacpla + or full ethanol (Union Carbide). The component Jl represents terpoiunei or axis e + i Leno / methacrylate of inet i lo / met acp lat or glycidi axis with a high epoxy (glycidi io) (it is decur-, axis more than 5% by weight) (The i Atochem). Component 0 is an ethylene / methacrylate or methacrylate / methacrylate polymeric terpol with a low level of epoxy groups (glyieidyl) (ie, less than 5% by weight) (The Atochorn) . The component T) os? N. OO% /: 0% Otomin / A ng I o m e o n e o m e o n e with a n axis axis merger of less than 5. The appropriate eopolists are marketed by Elr A + ochem.

CURDRO 1 MQcJl fi i Sco- Re i s - Lengthening-Module Voltage Module-Smaller * Gingiva * o de from a to J_a + e n s i o n E 1 e x i o n Flexion t ensí on r? Pt ur-a % A 2011 0.94 2"5 0.060 1.. b 45 0.056 O 5% B 4 72 I ..01 2.9 0.0 (50 1. .6 (56 (1.0b2 % C 2471 1.03 2.0 U.Obi L .666 0.056 % ? 1911 1.04 2.8 0.062 1, .673 0.054 Slotted modul modulator .zod not ranur a HD.2 HJDT * 5% A 0.059 0.271 165 233 5% i ") 0.10 0.5 1 3 235 5% C 0.0 0.369 156 232 55 í) 0.067 CI.352 L86 233 CUfIDER 2 Moelí f-t - Visco- Res i s- Al rgaModule Voltage Module drops the r e c tio n of a de l a l a l l t t h e t h e t ura 10% B 5444 0. 20 3.0 > 0.056 L.511 Ü.049 % 1) 4252 0.064 J.í) U.Udr 'L .420 0.017 % B 6002 0.7 3 3.6 0.052 L.101 0.042 % 0 2 10 0.9 2 2.9 0.062 1.49? 0.050 lb% C 11 LO 0.036 3.1 0.0 b k L .3 r 0 0.045 % C) 371. 0. Í03 3.6 0.0 8 1.145 0.0 /.0 % l) 1055 0.400 2.6 0.033 0.5 8 0.023 1% T) / 4% U? 7 &q. 0.738 3.9 0"048 L. L 08 0.042 14% B / 6% D f365 0.759 3.7 0.050 1. L 95 0.0 2 12% Í) / 8% I) 701 0"752 4.1 0.049 1.22 0.041? O% e /? O% i). { 090 0. f07 4.0 0.052 1"223 0.042 6% 11/14% D 5? 39 0.766 3.9 0.0 9 1.195 0.0 0 4% 11 / L% I) 1370 0.7 S 9 J.O U.049 L.202 0.04 2 i ".

FIGURE 2 (continued) Modi (i cade i L oe -an? R do Lzod no HDT2 HDT slot: % B 0.148 0.879 170 231 ib% n 0.182 0.939 13? 230 % B 0.262 1.102 109 226 % (0.104 0.445 151 229 % 0 0.132 0.722 146 3 (1 % (. 0.1 6 0.? HL 106 219 % 1) 0.070 0.434 7 J 91 16% H / 4% 1) 0.222 J .058 110 22b 14% B / 6% U 0.2 L 7 1,075 10 220 12% J? / B% ü 0.203 0.982 114 224 % B / 10% D 0.20? 1.020 110 222 6% I! / 14% U 0.1 3 0.906 117 225 4% B / 1% 1) 0.193 0.999 105 221 As illustrated in the data reported in block 1 above, the individual copoluneros (ny J)) and the terpolymers (B and 0) useful in the present invention, when used alone at an axis 5 % as impact modifiers, produced izod impacts similar to PET trades Les. For example, for components A to cuando when used at a 5% level as impact modifiers in the PEI composition, the Izod grooved impact measurements ranged from * r-e 0.059 to 0.104. Non-slotted Izod impact measurements vary between 0.2 / 1 to 0.504 for these compositions. Comparing the results of tables 1 and 2, ol component B, when it is raised < 5% (Quad-1) to 20% by weight (Table 2) as the impact axis modifier, produced an increase in measurement < 1 Izod grooved shaft 0.104 to 0.268 and Izod not slotted 0.504 to L.L02. Component C, when it rose from 5 5% (Table 1) to 20% by weight (Table 2) as the impact modifier, produced an increase in the measurement of the slotted rzod from 0.077 to 0.146, and from the Lzod non-grooved axis 0.369 a (J.? 81. ll component I) was the impact modifier when raised (Je 5% (Table L) to 20% by weight (Table 2) > > n the composition did not produce or p? There are few changes in the meter, the Izod slotted (0.067 to 0.0? 0) or the Izod ne slotted (0.352 to 0.434). In this way, it seems (th components T) and 0 are good modi impact indicators when used alone, but the component D is not an effective impact axis modifier when used alone in the polLoster. Surprisingly, and according to the present invention, a modifying composition of unpacH) containing component B and component 1) produced the best results on the PEI axis composition of the experiment The good results appear to be independent of the relationship of the two components to each other (see Table 2.) In fact, the best overall results, taking into account the other test results Like the Izod measures, they are provided by the ' I Impact modifier composition containing 4% of terpolimer B and 16% of copolymer D. Ot to composition 7 7 One-pack or good modifier contains 14% by weight of the < erbilL uñero B and 6% by weight of copolimoio D.

EXAMPLE 2 Other polyester resins I s + os example '/ demonstrate the use of another resin in the polyester compositions of the present invention. A. to a proven polyester. -ontonia a polystyrene resin of approximately 6 ?. % of PBT and additives, and "5% by weight of polycarbonate. The other components of the polyester composition included 12.5% by weight of the fiberglass reinforcing agent, 2.5% by weight of the filler, glass flakes and 10% by weight of the indicated modifier or composition. The impact modifiers tested included the component A of Example 1, the modifier -Je cuirass (Je nucLeo ele Rohm and Haas marketed under The trademark LXL2330, and a modifying composition in accordance with the present invention. which comprised 3.3% of the components * © l! and 6 ..?% of the component T) of the pLo axis. Table 3 shows measurements of Tzod that were reported in the Izod ISO tests in kiLo or per square meters. twenty TROUBLESHOOTING 3 LZOD SLIDER LOCKER DO NOT RANGE IT % A? .4 31 10% EXL2330 7..9 33 3.3% Tl / 6. ?% You 11.2 45 The tests demonstrate that the impact modifier composition of the present invention is effective in a polyether composition having polybont resin / PUT. B. the pr-obada polyester composition contained a polioster resin of about 80% by weight of PT.T and conventional additives, without filler, sm reinforcing agent, and 20% by weight of the modifying or modifying composition. icador i ndicado. The inventive impact modifying compositions tested yielded 12% of 1 component B / 8% of component D of I-. The Lo L, and 4% of the B component and L6% of the D component of the Example L. The rSO measurements are reported in Table 4 in LojouLes / meter as described above, but in this case they are reported in three temperatures differents: ambient temperature (RT); -20 ° C and -4Q ° C. The impact at room temperature of the PBT would only be axis at most 5.5 (inet odo 1 SO).

FIGURE 4 Slotted impact Modi icator PT 20 ° C -40 ° C 2% I) / 8% D a break L5 10 4% J1 / 16% D 1 LO These data also show that the modification of the impact occurs in a reumable matrix of fibers that is not PP 1. 0. Other compositions (containing glass-reinforcing agent components ranging from 0 to 30) % by weight in a PET composition using the modifier composition (Je 4% B / 16% Í) and have provided preliminary data demonstrating good Ib impact on the final polyester composition as measured in the Lzod ISO tests. All references and patents mentioned hereinbefore are incorporated herein by reference. Numerous modifications and variations of the present invention are included in the above description and are expected to be obvious to one skilled in the art. It is noted that such modifications and alterations to the compositions and methods of the present invention are encompassed by the scope of the claims appended thereto.

Claims (6)

NOVELTY OF THE INVENTION CLAIMS

1. - A polyether composition having improved impact strength characteristics, including: (a) Approximately 40 and approximatively 90% on the ground (ie the total composition, a polyester resin containing a polyester). and minor amounts of additives; (b) between about 5% to about 25% by weight of the total composition of the selected component from the group consists of an ethylene / acrylate copolymer. alkyl and copolymer of alkyl ether / alkyl metacplate, in which said alkyl is from Cl to CIO; (c) from about 5 to about 25% by weight of the total composition of the selected component of the group of terpol uñeros (These consist of ethylene / acrylate from Lqui J / rhemethyl methacrylate, ethene / acp Lato from aliqui / acyl glycine, ethylene / alkyl metacplate / glycidyl acrylate, and et i leno / ineacrylate from alkene / glycidyl platelet, wherein said alkyl is 01 to 010; (d) from 0 to about 50% by weight &e; The total composition of a reinforcing agent; and (e) from 0 to approximately 20% by weight of the total composition of a flame retardant composition. 2"- The composition according to claim 1, wherein said polyester resin contains a compound selected from the group consisting of polyethylene terephthalate, < eref + alato shaft poly but i leño, fer-e i talato do polipropileno, naf alato ele PolLOtiiono, na ftal or pol ibut ileño and mixtures thereof. 3. The axis composition according to claim 1, wherein the total amount of the components (b) and (c)) does not exceed 40% by weight of the total weight of the composition in accordance with the i.e. 4. The composition according to claim 1, wherein said component (b) is an ethylene / methyl acrylate copolymer. 5. The composition according to claim 1, wherein the component (c) is an ethylene / methyl acrylate / rne + acrylate + or glycidyl terpolinder. Claim 1, in the said reinforcing agent is selected from the group consisting of glass glulam axis, glass beads, glass fiber, asbestos fibers, mica, talc, carbon fiber and steel fiber. 7. The composition according to claim 2, wherein said mixtures comprise at least two of said polymers in an approximate weight ratio of about 5% to about 50% (total weight). The poly is combined 8. The composition according to claim 1, wherein the eopoluner of component (b) comprises at least about 30% by weight of alkyl acrylate or alkyl methacrylate. - The composition of conformity with La reí vidição 1, in which the ter-poli The component (c) comprises, inter alia, from about 1 to about 15% by weight of the glycidyl acrylate or methane. Lat. Or gididyl, and about 1% to about 40% by weight of the alkyl acrylate or alkyl inert acrylate. 10.- I i. composition according to claim 1, (g) comprises: < a) about 61.5% by weight of the total composition of a polyethylene terephthalate phthalate composition, the composition contains about 3.5% by weight of additives; (b) about L6% by weight of the total ethylene / methyl acrylate composition; (c) about 4% by weight of the total composition of terpene Liqueur of ethylene / acrylate or rnetium / rnet glycidyl acrylate; and (d) about 15% by weight of the total composition of glass fiber. 1.1, .- The composition according to claim 1, wherein said additives comprise 1 ubpcantes, stabilizers, antiox Ldarites, stabilizers, nucleating agents, color + es, mold release agents and ultra iole light stabilizers. 1

2. An article axis molded manufacture from the composition polyester axis of claim 1. 1

3. An acrylic modifier composition to improve the resistance to unpacto of polyester compositions <The present invention comprises: (a) in about 10% to about 90% by weight of a first component selected from the group consisting of a copolymer of nickel / acp lat or alkyl and copolymer of ethanol. Ileno / met acp lato alkyl, in the ejue said aléjenlo is from Cl to CO; and (b) between about + or 10% to about 90% by weight of a second component selected from the group of terpolers which consist of ethylone / acp lat- or alkaline / acyclic or qcycidyl meth. ethylene / acp lat or alkalyl / acrylate glyzidyl; et Leno / metacp The + o of al q? i lo / acp lato of glycidyl; and ethylene glycidyl methacrylate or methacrylate, wherein said alkyl is Cl to CIO. 1

4. The spindle composition according to claim 1, wherein said component (a) is a polymer / ether / metal lattice copolymer. 1

5. The composition according to claim 13, wherein the component (b) is a Lunero flake of eti Leno / ac i J at o of methyl / methacrylate of Lieidi Lo, 1

6. - the composition of in accordance with the indication r3-eiv L3, in which the lime flake of the component (a) comprises at least about 30% by weight of the alkylate of alkyl or methyl acetate and alkyl.1 The composition according to the claim L3, wherein the terpolymer of component (b) comprises between 1 to about 15% by weight of the glycidyl or methacrylate + or glycidyl acrylic acid, and in re about 1% to about 40% by weight of the Alkyl or alkyl meta-platelet, the balance being Full, b LO.- A polyester composition containing at least 10% by weight of the composition of the acrylic modification composition of the rei indication 13. 19.- An article of molding a partm of the composition of the polLestor of the vindication Lü. 20. A method for increasing stiffness and impact resistance of poly-ester compositions comprising adding to a ream a polyester composition according to claim 13. 21. - The method according to the claim 15 20, which further comprises the steps of: (a) pouring a ream of Pol Lester ejue contains a polyester and minor amounts of at least LVOS at a temperature as high as the melting temperature of said polyester in an extruder-; (b) adding to the composition of step (a) a modifier composition that comprises approximately 10% to approximately 90% by weight of a first component selected from the group consisting of an ethylene oxide flake. Acrylic block and copolymer of ethylene oxide / Acne + Acp Alkyl phase, wherein said alkyl is Cl to CIO; and between about 10% to go about 90% by weight of a second component selected from the group of terpoluneros consisting of the Leno / acp Lat or the glycine alkylate; ethylene / acyl acetate / acylate glycidyl axis; et i leno / met acn Lat o Je alqui lo / acp 1 at o de gLLCidilo; and glycidyl Latinate or ethylene / ethyl acetate, wherein said alkyl is 0 to 010; te) add opc Canvas! ment to the composition of step (b)? n reinforcing agent; (d) to optionally adhere to a 1-step model (c)? n reinforcing agent; extruding The melted composition resulting from steps (a) to (d) from said extruder apparatus, wherein said composition is extruded as an intimate mixture; (f) subjecting said mixture of the p (e) to means to decrease the temperature thereof and solidify said mixture; and (q) subjecting the solid composition (Step i) to means to reduce its size 22. The method of compliance with the claim 21, in which said steps (a) to (d) are carried out by the user. The method of compliance with claim 21, wherein said steps (a) to (d) are carried out sequentially.