DE1694802A1 - Polymer blend - Google Patents

Description

Polymer mixture

The invention relates to improved, a polyamide and polyethylene containing mixtures,

Polymerni8dummen containing a polyamide and, as a main ingredient, polyethylene are suitable, "I for the production of containers, such as by the blowing method ₃ from such mixtures container produced lack some result of toughness and Durchlässigkeit-, Dieae defects apparently from the incompatibility dep polyethylene and polyamide coraponents of the mixture

The present invention makes compatible mixtures of Polyethylene and polyamides available, these blends compared to the two-component blends the state of the Technology have improved properties- An application the purpose of these mixtures are molding compounds.

- 1 109819/1919

CONSTRUCTION ORiGfNAL

AD ~ 4047 *

The improved mixtures geraäss the invention contain 3 bia 50 weight "? S of a polyamide and 50 bia 97 wt _o # of polyethylene and copolymers of Äthyletss with 0.1 to 8 moles # a <x> ß ~ ungesättigtefi carboxylic acid ₉ wherein the mixed polymers is present in a tolerable amount; " Generally, the mixtures contained 3 bia 30 weight "# = interpolymer, preferably containing mixtures of 10 to 50 Gewo $ polyamide, 5 to 20 weight * 5 & copolymer as, Kest - on inage ~ together with 100 - polyethylene,

The polyethylene used in the mixture can be called Lineiirpoly = ethylene, usually ala high-density polyethylene {from 0.94 g / era or more), or branched polyethylene, usually called low-density polyethylene (from 0.91 to Ο _Ρ 95 g / cm ') denotes, aeinο In the polyethylene of the connector of the invention may also contain small amounts' other <v ~ ine ölef ala C'omona ° ~ mer present leg liinaats Polyäthylena a linear-type one works preferably Rait 10 bia 25 $ ven According to the mixture of polyamide and when using polyethylene dee branched 5? Yps vorssugsweie® with 35 to 50 G'e «r-? SP

The KthylenniiBchpoXyiaare used in the mixture should belong to the random (statiatiach disordered) type ₉ above. d «m l'yPi with the GarboiiBäuregruppeii through and through! loosely distributed bind ₃ Such copolymers can be obtained by filiachpol.y ^ Bieri sation of the monomers with Konstantungebäingungen - _n examples of <56 _r ß-unsaturated a öHuresi _g Λ le a with ethylene to a mixed polymer. with 0.1 to 8 MoHi des

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_r tigt® Mono- and Mcurlbemiluren, primarily with 5 to B KoU-isnfjtoJTfatoasno. Such acids include Aex * yls, Methaeryl = »Maleia - and, Fumaric acid, and. BicmoalkyleBter and anhydrides of dicarboxylic acids j where di © -MetfcasryleHure is preferred ο In "can of mixed polymers and small amounts of other ¹ raiach-

Ethylene Saturated Monomers? “ Like methyl” or Viuylaoetatj ν succumb ο

The polyanide used in the mixture is generally useful includes the masses which are usually called hylons.

n and a Molelailargewiht from alnäestenB 20ÖC; Bas polyamide is generally made through condensation

β into 3 Älkylsßdiasains these alkylene _r 2 b: ls 10 Kolilsn ':.' t ape atoms with _P © iner gesättigfen Dicarbenaäure 2 htm 10 carbon atoms obtained contains Mo ^ raalervieise

Medicinal product aovjßhl £ sain «as well as Sarboriyl ^ Endg ^ upjss i pich di® relative iiahl der B ^ ög ^ uppea na oh den. reletider Keaktionteilaahmsr r Richtet _; Uei ¹ share clieeer in Beaug aufeAmipfies? can be found in I ¹ OrBi der-Xshl ui-valeut! © Affiiß at? rub _P die in cteta Kara ir -lit-ar ciis Sah ", dsr Oarbo-.ylgruppga per million CfrßKS

o Ks has giiiioigty üaus bsi one il voh 20 to 140 _P ^ erswgawcise? .5. to 6O ₅ - - '; erj. in U'aerechuöB about ftis & ahi dsr-Oarbox ^ igruppen ^ e Million "r-an ·: 3? oXyatniö ßl-s nit the Pcly-aniö obtained mixturesK -} ® * i2-iv® 5äithi. £ ikeitaeii; ensohaf1; sn -have «- ¥ öraüi; av? eiij3" be

109819/1919

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For this reason, polyamides with a high number of Arainendgruppennahl - one sets ο Preferred polyamides are Polyhexaraethylene adipaeid. (66 nylon), polyhesaraethylenesbacaraid (610 nylon) ₉ poXycaprolactam (6 nylon) and mixed polymers which can be referred to as 66 / S1O nylon and 66/6 nylon »Mixtures of the above polyamides can also be used for the purposes of bonding ο

The mixtures may also contain other ingredients such as fillers _{f r} pigments, dyes, Y / ärGneatabillaatoren-; like Na triUEshypcphoophit _f antioxidants like 1,1-Bi8 - »{2-m.ethyl ~ 4-hydr> oxy» 5-1 »ert _c -butyl-phenyi) -butane ₆ UV-protection agent , Kerribildner and dex ^ other antioxidants include copper (II) * -aalse as ferstearat and acetate, and NatriuraphenylphoBphinat, the mixtures contain geuäas of the invention, a Sta biliaator and an antioxidant, In general, O ₉ 05 Ms 2srO io at the Mischungsßewieht every additional ratttel go

The mixtures according to the invention & in the other sense QlKe IcIi-idle mixtures ρ that the different components: in d>? R · the whole area equally distributed srinö .. Au ..- *

of the holes one can determine the desired quantities of the ^ each of which is normally fixed at low temperature. ^% -köraolichen Vorriohtungen _r like a Bant-ury · = Mixing a: · ¹ MiBChwals5e, an extruder or the like? eichnielsmincheii;

The mixtures can also be mixed in solution

j ■■

^ The mixtures are prepared in advance

“IöSÖli / tSIÖ T BADORiGlNAL

· Ι

A3D-4O47 5

at the lowest temperature at which it is effective Mixing the individual components causes kamio

The mixtures genäss dsr invention are thermoplastic and can be ηεοη conventional, applied for processing QJhermoplastartikeln methods au an extraordinarily mash ~ th variety of objects to process _p z "B ₅ su molding press Lingens, extrudates, einachliesülich filaments and fibers ^ bottles ^ tubes and Schläuchens Films and sheets, laminates ^

Wire coatings and the like, "The mixtures are ^ particularly for the production of Blneverfahren aur Be" hiilterzi and foil ₀ The products can- \ Jeiter Nachforraarbei "th are subjected _t like drilling, sawing» Mowing _p l'hercio "foraverfahren and the like ₀ By Streck = «baw. Stretching _"9 rotation" and Y / alzorientieren the materials are oriented films and sheets "bands einaehliesslich available Verpackungabtindern, gills ρ filaments and films Xa orientiei'ten Sustand show the l? Olymeraiachungen gemäsa the invention, a much lower susceptibility to decomposition in ISinötechungen φ ala the neiaten bakarmten materials * Oriented strips aua I ^ olyataid-Äthyleri / Methucrylaäure-Polyäthylen-mixtures z. B ^ can be sewn using a sewing machine with search and are therefore suitable as stiffening material for the clothing industry

The following examples, in which rope and process specifications _9, unless otherwise stated, refer to the (Do not relate and in which the words for the iJohiaelaindex according to ASi ¹ M-PrIIf norm

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AD ~ 4O47 6 ■. '

I) -1238 ~ 62S determined. are used for further explanation of the mixtures according to the invention without affecting the invention is limited to them *

■ β..β_A.g — .P..A ^e J ·, .... Λ

The materials used were polyethylene with a melt index of 4.5 and a density of 0.949 ». Mixed polymer of ethylene and methacrylic acid with a content of 9 ₉ 5 percent _a? " of methacrylic acid on returning units and a Schneissindex of 2.5 and a 66/6 Miachpolyanid (ratio of Miachpolymerkonponenten 90: 10). with a Molakulargswicht of about 20,000 and a content of ₅ 25 O \ & η * $> to Hatriumhydrogenphoephinat eingesetato 7mt Mixing retelluKg , the balanced materials were gerai-saht- in a dry, firm Ihivm 30 minutes ο on a twin stream line ear. The resulting mixtures were then mixed on a 5 cm-'-sxt3? Uäei- of the type II-like using a mixing port of a single-hole nozzle at 240 ° C. The extruded mixtures were mixed at 185 ° C and 280 kg / cBa ¹⁵ * platelets (1.9 and 3.2 am) pressed details of the mixtures zuatimenaetzunj; and the test; results® are given in the following table,

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Ηβββϊβ poly- poly- ethyl ο / tensile stretching; Deh ~

H amide, ethylene »RIethaer _e « impact limit _e nutiE? $>

# Gew _o ? S mixed strength »,, 2" *** T

polyoo, * f / ^cm

1 O 100 0 41 230 217

2 5 95 0 9 220 33

3 5 90 5 41 224 167

4 10 85 5 30 227 25

5 15 80 5 28 242 17

* T ASTM test standard D-1822-61T (Tensile Impact) **) ASTM test standard D ~ 638 _P at 5.1 cra / min «***) ASTM test standard D-638 at 5.1

B e is ρ ie 1

The example 1 was repeated using a mixture of 50 (Jew, $ S Polycaprolaetara, 45 wt <> 5S Rait a polyethylene a üchmelzindex of 0.2 and a countenance of 0 ^ 918 and 5% of the Süureraischpolyraeren of Example 1 repeated injection Gieselwerder Inge from this Mixture resulted in a yield point of 236 kg / cm j, elongation of 183 ^c fi and tensile impact strength of W 212 kg ο cm / cm compared with values of 160 kg / sirij, 38 $ bavjo 6.4 kg ο cm / cm with an equal urgent mixture of the same polyamide and the same polyethylene ->

For β ρ i el J

Made of a mixture of 60 parts of high density polyethylene (Tendon index 0.45; density 0.956), 20 parts of 66 nylon (biological weight about .17,000) and 20 parts of Ethyleß-BIethacrylaaure

e «0_ ORIGINAL

. i ■ - ■

AD-4047

Mietchpolyaerem raises a salary of. 11 6ew »ji an. wnd on tfüure returning = units "a Schaelzindex of about were prepared by the Blaaverfahren 11 J-ral ^ laachen (4 ounces), using a device, a 6, 35-cin ~ Extruciler d © r type Egan _f was used the nit a Screw speed of 12 rev / minop © r nozzle temperature of ®tv / a 230 ° G ₉ a shoulder temperature of about 245 ° " " C ₉ a Israela pressure of about 70 kg / cta and a blowing pressure of about 25.5 kg / cm worked. _o The bottles had _{a free appearance o The bottle surface was smooth F} without being shiny _o The bottles could withstand repeated sharp blows rait a hammer without any adverse effect o

Example .4

Example 3 was made using a blend of 30 parts of the same high density polyethylene? 40 parts of the same 66 nylon and 30 ropes of the same ethv Methacrylic acid miachpolymereni repeated the application Bottles corresponded qualitatively to the example? a ^ lm ^ t -. "·;

⁸ "BAD OBSGiNA!

109819 / 1.9 19th

Claims (1)

ΑΒ-4047 3 3 November 1967 PS _n t _m e, η - t H ₁ ; η. js _t Jp ₁₁ T ₁₁ U ₁ .Q ₁ ti, e 1b blend of polyethylene and a polyamide ".gekennzeichnet characterized in that it is homogeneous' and from 3 to 50 (each ₀ ^ of polyamides and 50 to 97 Gew.fS polyethylene and copolymers of ethylene and auo _0? 1 to 8 M0I5S a oc. _y ß ~ unsaturated carboxylic acid is formed »v <if the mixed polymer is present in at least one compatible amount ₀ Slope according to claim 1 ₉ characterized by "a content of 10 to 5Q.Gew. # Of the polyamide and 5 to 20 GüVJoYo of the mixed polymer" 3ο mixture according to claim I ₉ characterized by a content of linear polyethylene as polyethylene and from TO to. 25 gene * £ an 'polyamide *. ~. ■ ■. "- ■ .. ■ _ 4 «Mixture according to claim" I ₉ gQ-keiina "is calibrated by - a content of branched polyethylene as polyethylene and - from 35" to 50 enjoyment of polyamides Mixture according to one or more of Claims 1 to 4p, characterized by a content of polyhexaethylene oxide as polyamide and a ethylene-methaerylaic acid mixed polymer 10 9 8 1 97 1 9 1 9 ^BAD ORIGINAL ΛΒ-4047 6ο method aur preparing the mixture gemUss claims 1 to 5 characterized gekennzeiehnet β, dasβ to the polyethylene and polyamide, in melt or solution with the ftthylen-Car = bonäUure-Miechpolymeren mixed 10 - BATH ORIGINAL 10 9 819/1919