DE1544770A1 - Molding compounds with increased impact strength based on polyvinyl chloride or its copolymers - Google Patents
Molding compounds with increased impact strength based on polyvinyl chloride or its copolymersInfo
- Publication number
- DE1544770A1 DE1544770A1 DE19651544770 DE1544770A DE1544770A1 DE 1544770 A1 DE1544770 A1 DE 1544770A1 DE 19651544770 DE19651544770 DE 19651544770 DE 1544770 A DE1544770 A DE 1544770A DE 1544770 A1 DE1544770 A1 DE 1544770A1
- Authority
- DE
- Germany
- Prior art keywords
- copolymers
- polyvinyl chloride
- molding compounds
- impact strength
- vinyl acetate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L31/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
- C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C08L31/04—Homopolymers or copolymers of vinyl acetate
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
Troisdorf,: den 7.1.1965-Troisdorf,: 7.1.1965-
DYIMIT HOBEL JU^IEMESELLSCHAi1TDYIMIT PLANE JU ^ IEMESELLSCHAi 1 T
15U77Q15U77Q
Troisdorf / Bez. KölnTroisdorf / District Cologne
Formmassen von erhöhter Schlagfestigkeit auf der Basis .von Polyvinylchlorid oder seiner UigcopolymerisateMolding compounds with increased impact resistance on the basis of Polyvinyl chloride or its Uig copolymers
Ss ist bekannt, daß durch Zusätze von Mischpolymerifiaten des Äthylens mit Vinylacetat zu Polyvinylchlorid Formmassen ver--"besserter Schlagfestigkeit erhalten werden können, wobei jedoch von Nachteil ist, daß hierzu prozentual hohe'Zusätze erforderlich sind, -und sich durch derartige Zusätze zahlreiche andere mechanische Eigenschaften der erhaltenen Formmassen, wie zum Beispiel die Steifigkeit, in unerwünschter 'Jeise /verändern« It is known that the addition of copolymers of the Ethylene with vinyl acetate to polyvinyl chloride molding compounds improved Impact resistance can be obtained, but the disadvantage is that this requires high percentages are, and numerous other mechanical properties of the molding compounds obtained by such additives, such as the stiffness, in undesirable 'Jeise / change'
Von großem technischen Interesse ist es deshalb, bereits mittels geringer Zusätze Produkte mit hohen U-KerbZähigkeiten zu erhalten, unter Erhaltung ihrer übrigen mechanischen Eigenschaften. , ' It is therefore of great technical interest, even by means of low additions to obtain products with high U-notch toughness, while maintaining their other mechanical properties. , '
Es wurde nun gefunden, daß' man bereits mit geringen Zusätzen zu Polyvinylchlorid hohe U-Kerbzähi'gkeiten erzielen kann, wenn dieser Zusatz gemäß vorliegender Ei-findung aus einem vernetzten Misohpoylmerisat des Äthylens mit Vinylacetat besieht, wobei eine Verschlechterung· anderer mechanischer Eigenschaften vermieden wirä. Die Vernetzung erfolgt in an sich bekannter l/eise, beispielsweise mit Peroxiden, wie Dicumylperoxid oder dergl., oder durch Bestrahlung. Zusätze von Triallylcyanurat können hierbei von Vorteil sein, Es ist zweckmäßig,It has now been found that 'one can even with small additions can achieve high U-notch toughness compared to polyvinyl chloride if this additive according to the present invention from a cross-linked Misohpoylmerisat of ethylene with vinyl acetate besides, with a deterioration in other mechanical properties is avoided wirä. The networking takes place in a manner known per se, for example with peroxides such as dicumyl peroxide or the like., or by irradiation. Additions of triallyl cyanurate can be an advantage here, It is advisable to
-2 - -2 -
SAD 909832/129 3SAD 909832/129 3
den Mischpolymerisaten "bei der Einarbeitung von Peroxiden auf der Walze Stearinsäure zuzusetzen, uin ein Verkleben zu vermeiden· Die Vernetzung erfolgt bei Temperaturen von etwa 120 C bis etwa 1βθ C, je-nach Verwendungszweck. Gemäß vorliegender Erfindung verwendet Dian vorteilhaft solche vernetzten Mischpolymerisate des Äthylens mit Vinylacetat, die vor der Vernetzung' einen Gehalt von etwa 10 Gew. -°/o bis etwa 90 Gew.-yo an Vinylacetat und relative Viskositäten von etwa 1,5 bis 5»0 (gemessen in Chloroform bei 20 C) aufweisen« Durch Variation von Temperatur und : Ausätzen lassen sich Produkte unterschiedlichen Vernetzungsgrades herstellen, so daß im Verein mit einem wechselnden Vinylacetat-Gehalt im vernetzten Mischpolymerisat Formmassen hergestellt werden können, die weitgehend ihrem Verwendungsz7/eck angepaßt werden können.To add stearic acid to the copolymers when incorporating peroxides on the roller, to avoid sticking. Crosslinking takes place at temperatures of about 120 ° C. to about 110 ° C., depending on the intended use. According to the present invention, Dian advantageously uses such crosslinked copolymers of ethylene with vinyl acetate which, before crosslinking, have a content of about 10% by weight to about 90% by weight of vinyl acetate and relative viscosities of about 1.5 to 5 % (measured in chloroform at 20 ° C.) " by variation of temperature and: etching the production of products of different degree of crosslinking such that the molding compositions can be prepared in association with an alternating vinyl acetate content in the crosslinked copolymer, which can be adapted largely eck their Verwendungsz7 /.
Den gemäß der Erfindung da-rgestellten Formmassen können gegebenenfalls Stabilisatoren, Gleitmittel, Weichmacher und/oder weitere hochpolymere Verbindungen zugesetzt warden« Es lassen sich auch Mischpolymerisate des Vinylchlorids anstelle des Homopolymerisates einsetzen. So können z.B.. Mischpolymerisate des Vinylchlorids mit Vinylacetat, Vinylpropionat, Vinylstearat, Vinylidenchlorid, Acrylsäureester, Itaconsäureester, Acrylnitril, Maleinsäureester, Fumarsäureester und ähnliche verwendet werden. Man kann auch mit Vorteil Mischpolymerisate des Vinylchlorids in Kombination mit dem Homopolymerisat verwenden. Geeignete Mischpolymerisate sind z.B. Mischpolymerisate desThe molding compositions prepared according to the invention can optionally Stabilizers, lubricants, plasticizers and / or other high-polymer compounds can be added copolymers of vinyl chloride can also be used instead of the homopolymer. For example, copolymers of vinyl chloride with vinyl acetate, vinyl propionate, vinyl stearate, vinylidene chloride, acrylic acid ester, itaconic acid ester, acrylonitrile, Maleic acid ester, fumaric acid ester and the like can be used. Copolymers of vinyl chloride can also be used with advantage use in combination with the homopolymer. Suitable copolymers are, for example, copolymers of
co Vinylchlorids mit Äthylen, Propylen oder anderen Olefinen. Όco vinyl chloride with ethylene, propylene or other olefins. Ό
Es zeigte sich, daß bereits geringe Gehalte an vernetzten Misch- >^ polymerisaten des Äthylens mit Vinylacetat im Polyvinylchlorid (o bzw. dessen Mischpolymerisaten eine wesentliche Erhöhung derIt was found that even low levels of crosslinked mixed > ^ polymers of ethylene with vinyl acetate in polyvinyl chloride (o or its copolymers a substantial increase in
**> Schlagfestigkeit bewirken. So verbessern sich die Schlagfestig- ** > cause impact resistance. This improves the impact resistance
- 3 - ' SAD ORIGINAL- 3 - 'SAD ORIGINAL
keiten schon bei einem Gehalt von etwa 0,5 G-ew.-'/fc an vernetzten Mischpolymerisat, ohne daß sich hierbei die anderen Mechanischen Eigenschaften der Formmassen verschlechtern, wUhrend darüber hin aus bei Gehalten von etwa 2 Gev;.-$ bis etwa 10 Gew.-^ optimale Y/erte zwischen der Schlagfestigkeit und beispielsweise der Zugfestigkeit erreicht werden. Beispiele with a content of about 0.5 wt% / fc of crosslinked copolymer, without the other mechanical properties of the molding compounds deteriorating, while at contents of about 2 wt% to about 10% by weight optimum values between the impact strength and, for example, the tensile strength can be achieved. Examples
1. 50 Teile eines Mischpolymerisates aus 55 Gew.-^o Äthylen mit1. 50 parts of a copolymer of 55 wt .- ^ o ethylene with
45 Gew.-ji "Vinylacetat, 1 Veil iHcumylperoxid und 1 Teil Stearinsäure werden auf der 7/alze 20 Llinuten bei einer Temperatur von 90°G gewalzt. Das -Jalzfell wird 10 llinuten lang bei einer Temperatur von 135°C zu einer Platte verprasst. Im Gegensatz zum unvernetzten Ausgangsmaterial ist das erhaltene vernetzte Produkt in Chloroform nur noch quellbar.45% by weight of vinyl acetate, 1 part of cumyl peroxide and 1 part of stearic acid are on the 7 / alze 20 minutes at a temperature of 90 ° G rolled. The Jalzfell is pressed into a sheet for 10 minutes at a temperature of 135 ° C. In contrast to the uncrosslinked starting material is the crosslinked product obtained only swellable in chloroform.
2. 6OO Teile Suspensiona-Polyvinylchlorid (Κ-7/ert 70), Η Teile Dibutylzinn~di(octylacetomercaptid)<Ier formel (.G.Hq)^SnCSCII2GOOG8 als Stabilisator und 3,5 Teile nieder.aolekul6.ren Hochdruckpolyäthylens (mittleres Molekulargewicht == ü.OOO) als Gleitmittel werden zusammen mit 4I ör des in vorstehend beschriebener 'Jeise dargestellten, vernetzten Produktes bei einer Temperatur von 1700C während 20 Minuten-gewalzt. Bas noch heiße Walzfell wird anschließend zu einer Platte verpreßt.2.600 parts of suspension polyvinylchloride (Κ-7 / ert 70), Η parts of dibutyltin di (octylacetomercaptide) formula (.G.Hq) ^ SnCSCII 2 GOOGLE 8 as a stabilizer and 3.5 parts of low molecular weight Hochdruckpolyäthylens (average molecular weight == ü.OOO) as a lubricant are shown together with 4I ö r in the above-described 'Jeise crosslinked product at a temperature of 170 0 C for 20 minutes-rolled. The still hot rolled sheet is then pressed into a plate.
Folgende Tabelle gibt den Vergleich der U-Kerbzähigkeiten vernetzten und unvernetzter Formmassen wieder. TabelleThe following table provides a comparison of the U-notch toughness crosslinked and non-crosslinked molding compounds again. Tabel
O CO OO Ca>O CO OO Ca>
an iithylen/Vinylacetat-Mischpolymeren vom
Sewichtsverhältnis 5,5 zu 4,5Content of the polyvinyl chloride molding compounds
of ethylene / vinyl acetate copolymers from
Weight ratio 5.5 to 4.5
(cm.Kp/cia^)■ U-notch toughness
(cm.Kp/cia^)
3,0
5,0 »
5,7
7,5 "
— 4 —0.9 Qevi.-fo
3.0
5.0 »
5.7
7.5 "
- 4 -
6,2
10,2
11,0
13,4 3.4.
6.2
10.2
11.0
13.4
30,5
58,0
64,3
78,1 8.6
30.5
58.0
64.3
78.1
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED0046214 | 1965-01-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1544770A1 true DE1544770A1 (en) | 1969-08-07 |
Family
ID=7049564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19651544770 Pending DE1544770A1 (en) | 1965-01-09 | 1965-01-09 | Molding compounds with increased impact strength based on polyvinyl chloride or its copolymers |
Country Status (11)
Country | Link |
---|---|
AT (1) | AT263356B (en) |
BE (1) | BE674603A (en) |
CH (1) | CH455280A (en) |
DE (1) | DE1544770A1 (en) |
DK (1) | DK115886B (en) |
ES (1) | ES321510A1 (en) |
FI (1) | FI44485C (en) |
FR (1) | FR1462126A (en) |
GB (1) | GB1068454A (en) |
NL (1) | NL6600199A (en) |
SE (1) | SE331359B (en) |
-
1965
- 1965-01-09 DE DE19651544770 patent/DE1544770A1/en active Pending
- 1965-12-30 FR FR44340A patent/FR1462126A/en not_active Expired
- 1965-12-31 BE BE674603A patent/BE674603A/xx unknown
-
1966
- 1966-01-04 SE SE12566A patent/SE331359B/xx unknown
- 1966-01-05 FI FI2266A patent/FI44485C/en active
- 1966-01-07 DK DK9566A patent/DK115886B/en unknown
- 1966-01-07 NL NL6600199A patent/NL6600199A/xx unknown
- 1966-01-07 GB GB93966A patent/GB1068454A/en not_active Expired
- 1966-01-07 CH CH19366A patent/CH455280A/en unknown
- 1966-01-07 ES ES0321510A patent/ES321510A1/en not_active Expired
- 1966-01-07 AT AT12566A patent/AT263356B/en active
Also Published As
Publication number | Publication date |
---|---|
GB1068454A (en) | 1967-05-10 |
FI44485B (en) | 1971-08-02 |
SE331359B (en) | 1970-12-21 |
FI44485C (en) | 1971-11-10 |
ES321510A1 (en) | 1967-03-01 |
DK115886B (en) | 1969-11-17 |
BE674603A (en) | 1966-06-30 |
AT263356B (en) | 1968-07-25 |
FR1462126A (en) | 1966-12-09 |
CH455280A (en) | 1968-06-28 |
NL6600199A (en) | 1966-07-11 |
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