DE1236773B - Accelerating the crystal structure rearrangement of polybutene- (1) - Google Patents
Accelerating the crystal structure rearrangement of polybutene- (1)Info
- Publication number
- DE1236773B DE1236773B DEC31027A DEC0031027A DE1236773B DE 1236773 B DE1236773 B DE 1236773B DE C31027 A DEC31027 A DE C31027A DE C0031027 A DEC0031027 A DE C0031027A DE 1236773 B DE1236773 B DE 1236773B
- Authority
- DE
- Germany
- Prior art keywords
- polybutene
- crystal structure
- accelerating
- modification
- structure rearrangement
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0016—Plasticisers
-
- 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
-
- 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
- C08L23/10—Homopolymers or copolymers of propene
-
- 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
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
Description
Beschleunigen der Kristallstrukturumlagerung von Polybuten-(1) Die Erfindung betrifft die Verwendung von 0,1 bis 20 Gewichtsprozent an höheren aliphatischen Carbonsäuren zum Beschleunigen der Kristallstrukturumlagerung von Polybuten-(1).Accelerating the crystal structure rearrangement of polybutene- (1) Die The invention relates to the use of 0.1 to 20 percent by weight of higher aliphatic Carboxylic acids to accelerate the crystal structure rearrangement of polybutene- (1).
Polybuten-(1) bildet zwei Modifikationen, eine instabile Modifikation II und eine stabile Modifikation I. Aus der Schmelze, d. h. nach dem Granulieren und insbesondere nach der thermoplastischen Verarbeitung, bildet sich die Modifikation II, welche sich normalerweise bei Raumtemperatur und ohne Druckbeanspruchung erst innerhalb von etwa 6 bis 7 Tagen in die stabile Modifikation umlagert. In der Modifikation II ist das Polybuten-(1) mechanisch kaum beanspruchbar, da es zu weich ist und zu geringe Festigkeit besitzt; die Fließfestigkeit beträgt nur 80 bis 100 kg/cm2 bei Modifikation I. Polybutene- (1) forms two modifications, one unstable modification II and a stable modification I. From the melt, i.e. H. after granulating and especially after thermoplastic processing, the modification forms II, which is normally only at room temperature and without compressive stress rearranged into the stable modification within about 6 to 7 days. In the modification II, the polybutene (1) can hardly be stressed mechanically because it is too soft and too has poor strength; the flow strength is only 80 to 100 kg / cm2 Modification I.
Es ist aus den ausgelegten Unterlagen des belgischen Patentes 612 416 bekannt, daß man Niederdruckpolyolefine durch Zusatz von 0,01 bis 1 Gewichtsprozent eines Natrium- oder Kaliumsalzes organischer Säuren mit einer Kettenlänge von 8 bis 30 Kohlenstoffatomen im Korrosionsverhalten, das aus den Katalysatorresten herrührt, verbessern kann. Gleichzeitig wird die Gleitfähigkeit verbessert. Dieses Verfahren ist nur an Niederdruckpolyäthylen erläutert. It is from the laid out documents of Belgian patent 612 416 known that low-pressure polyolefins by adding 0.01 to 1 percent by weight of a sodium or potassium salt of organic acids with a chain length of 8 up to 30 carbon atoms in the corrosion behavior resulting from the catalyst residues, can improve. At the same time, the lubricity is improved. This method is only explained for low-pressure polyethylene.
In Fällen, in denen man keine verbesserte Gleitwirkung benötigt und auch eine Korrosionsverhinderung nicht erforderlich ist, besteht also keine Veranlassung zum Zusatz der Kalium- und Natriumsalze. In cases where there is no need for improved lubricity and corrosion prevention is not necessary either, so there is no need for the addition of the potassium and sodium salts.
Da Polyolefine, wenn sie, was häufig der Fall ist, mit phenolischen Verbindungen stabilisiert sind, in Gegenwart basischer Stoffe, wie der genannten Alkalisalze, zu unerwünschten Verfärbungen neigen, boten sich diese Salze dem Fachmann nicht an, um ein ganz andersartiges Problem beim Polybuten-(1) zu lösen.As polyolefins if they, which is often the case, with phenolic Compounds are stabilized in the presence of basic substances, such as those mentioned Alkali salts, which tend to discolour, these salts presented themselves to the person skilled in the art not to solve a very different problem with polybutene- (1).
Der Erfindung liegt die Aufgabe zugrunde, die Modifikationsumwandlung des Polybutens-(1) zu beschleunigen. The invention is based on the object of the modification conversion of polybutene- (1) to accelerate.
Diese Aufgabe wird erfindungsgemäß wie oben beschrieben gelöst. This object is achieved according to the invention as described above.
Zu den höheren aliphatischen Carbonsäuren zählen insbesondere z. B. Stearinsäure und Palmitinsäure. The higher aliphatic carboxylic acids include in particular z. B. stearic acid and palmitic acid.
Die Zusätze werden dem Niederdruckpolybuten-(1) zweckmäßig vor der Granulierung beigemischt. The additives are the low pressure polybutene (1) appropriate before Granulation added.
Beispiel 1 90 Gewichtsteile Niederdruckpolybuten-(1) mit einem I5-Wert
von 0,6 (bei 1900C gemessen) werden mit 10 Gewichtsteilen Stearinsäure gemischt.
Die aus der Mischung hergestellte Preßplatte (bei 180"C ge-
preßt) hat folgende Eigenschaften
(nach 24 Stunden Lagerung):
Beispiel 2 Aus Niederdruckpolybuten-(1) und Palmitinsäure wird die
in der Tabelle angegebene Mischung hergestellt. Aus der Mischung werden bei 180"C
Preßplatten hergestellt. Die hergestellten Preßplatten haben folgende Eigenschaften
nach einer Lagerung von 48 Stunden:
Während die Umlagerung des reinen Polybutens-(1) bei Raumtemperatur und Atmosphärendruck ohne Einwirkung weiterer äußerer Druck- oder Zugspannungen von Modifikation II nach I etwa 6 Tage dauert, ist sie bei den Polybuten-1-Mischungen schon nach 1 bis 2 Tagen beendet. Dadurch läßt sich das mit den Zusätzen gemischte Polybuten-(1) in äußerst vorteilhafter Weise für die Extrusion von Profilen wie Rohren einsetzen, welche alsbald ihre maximale Festigkeit erreichen, und zwar bereits nach 1 bis 2 Tagen, also innerhalb der mindestens üblichen Verlade-, Versand- und Ingebrauchnahmezeit. Der Vorteil, den die neue Mischung, beispielsweise in Form von Rohren auf dem Bausektor, bietet, liegt auf der Hand.During the rearrangement of the pure polybutene- (1) at room temperature and atmospheric pressure without the influence of further external compressive or tensile stresses from Modification II to I lasts about 6 days, it is the case with the polybutene-1 mixtures finished after 1 to 2 days. This allows the mixed with the additives Polybutene- (1) in an extremely advantageous manner for the extrusion of profiles such as Use pipes that will soon reach their maximum strength, and that already after 1 to 2 days, i.e. within the at least usual loading, shipping and Time to use. The advantage of the new mix, for example in terms of shape of pipes in the construction sector, offers, is obvious.
Durch die kristallisationsbeschleunigende Wirkung der Zusätze wird auch die Oberflächenhärte schon nach kurzer Zeit erreicht, während sie beim reinen Polybuten-(1) erst nach 6 bis 7 Tagen erreicht ist. Diese Beschleunigung der Kristallisation bewirkt ferner den wesentlichen technischen Fortschritt, daß eine Versprödung des Polymerisates durch Bildung uner- wünschter Kristallisationsformen hintangehalten wird. The additives accelerate crystallization even the surface hardness is reached after a short time, while it is pure Polybutene- (1) is only reached after 6 to 7 days. This acceleration of crystallization also causes the essential technical progress that an embrittlement of the Polymer by forming un- desired forms of crystallization will.
Vor allem aber kann man nunmehr Formkörper erzeugen, die schon kurz nach ihrer Herstellung vollkommen formbeständig sind.Above all, however, you can now produce moldings that have already been short are completely dimensionally stable after their manufacture.
Claims (1)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1084209D GB1084209A (en) | 1963-10-01 | ||
DEC31027A DE1236773B (en) | 1963-10-01 | 1963-10-01 | Accelerating the crystal structure rearrangement of polybutene- (1) |
FR989251A FR1410552A (en) | 1963-10-01 | 1964-09-25 | Improved blends of low-pressure poly-alpha-olefins |
BE653842A BE653842A (en) | 1963-10-01 | 1964-10-01 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC31027A DE1236773B (en) | 1963-10-01 | 1963-10-01 | Accelerating the crystal structure rearrangement of polybutene- (1) |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1236773B true DE1236773B (en) | 1967-03-16 |
Family
ID=7019633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC31027A Pending DE1236773B (en) | 1963-10-01 | 1963-10-01 | Accelerating the crystal structure rearrangement of polybutene- (1) |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE653842A (en) |
DE (1) | DE1236773B (en) |
GB (1) | GB1084209A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19754839A1 (en) * | 1997-12-10 | 1999-06-17 | Henkel Kgaa | Swollen molded part made of polyolefin plastics |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1215552A (en) * | 1956-12-21 | 1960-04-19 | Petrochemicals Ltd | Polymeric materials including low pressure polyolefins |
US2940949A (en) * | 1957-08-26 | 1960-06-14 | Sun Oil Co | Composition containing polypropylene and an ester plasticizer |
FR1239224A (en) * | 1958-10-30 | 1960-08-19 | Hoechst Ag | Improved high molecular weight polyolefins and their preparation |
GB849389A (en) * | 1957-10-09 | 1960-09-28 | Phillips Petroleum Co | Blend of microcrystalline wax and olefin polymer and method for production thereof |
GB856793A (en) * | 1958-05-20 | 1960-12-21 | Montedison Spa | Improved thermoplastic material |
US2967164A (en) * | 1956-02-03 | 1961-01-03 | Robert S Aries | Plasticized polymerized hydrocarbonsubstituted ethylenes |
BE619712A (en) * | 1961-07-21 | 1962-11-05 | Forges Ateliers Const Electr | Safety relay |
AT228492B (en) * | 1961-08-26 | 1963-07-25 | Chemie Linz Ag | Plasticized, thermoplastic mass |
-
0
- GB GB1084209D patent/GB1084209A/en active Active
-
1963
- 1963-10-01 DE DEC31027A patent/DE1236773B/en active Pending
-
1964
- 1964-10-01 BE BE653842A patent/BE653842A/xx unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2967164A (en) * | 1956-02-03 | 1961-01-03 | Robert S Aries | Plasticized polymerized hydrocarbonsubstituted ethylenes |
FR1215552A (en) * | 1956-12-21 | 1960-04-19 | Petrochemicals Ltd | Polymeric materials including low pressure polyolefins |
US2940949A (en) * | 1957-08-26 | 1960-06-14 | Sun Oil Co | Composition containing polypropylene and an ester plasticizer |
GB849389A (en) * | 1957-10-09 | 1960-09-28 | Phillips Petroleum Co | Blend of microcrystalline wax and olefin polymer and method for production thereof |
GB856793A (en) * | 1958-05-20 | 1960-12-21 | Montedison Spa | Improved thermoplastic material |
FR1239224A (en) * | 1958-10-30 | 1960-08-19 | Hoechst Ag | Improved high molecular weight polyolefins and their preparation |
BE619712A (en) * | 1961-07-21 | 1962-11-05 | Forges Ateliers Const Electr | Safety relay |
AT228492B (en) * | 1961-08-26 | 1963-07-25 | Chemie Linz Ag | Plasticized, thermoplastic mass |
Also Published As
Publication number | Publication date |
---|---|
BE653842A (en) | 1965-02-01 |
GB1084209A (en) |
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