WO1996010052A2 - Master batch for heat stabilisation of polyolefins - Google Patents
Master batch for heat stabilisation of polyolefins Download PDFInfo
- Publication number
- WO1996010052A2 WO1996010052A2 PCT/EP1995/003756 EP9503756W WO9610052A2 WO 1996010052 A2 WO1996010052 A2 WO 1996010052A2 EP 9503756 W EP9503756 W EP 9503756W WO 9610052 A2 WO9610052 A2 WO 9610052A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- masterbatch
- master batch
- weight
- polyolefins
- alkyl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1515—Three-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
Definitions
- the invention relates to a masterbatch containing a polyolefin homo- or copolymer and an epoxy compound. Another object of the invention is a process for the long-term heat stabilization of polyolefins.
- polyolefins have proven to be versatile construction materials.
- Various polyolefin classes are now known which have very different property profiles.
- polypropylene is used as the standard construction material.
- products with a relatively high softening and long-term use temperature are used in automobile construction, especially in the motor area of automobiles.
- Polyolefins are widely used as films in the packaging industry and in agriculture.
- the fillers contain impurities from various metals, such as iron and manganese, which promote this effect.
- the low thermal stability is attributed not only to the negative catalytic influence of the heavy metal ions contained in the fillers but also to the absorption of the polar antioxidants on the polar surfaces of the reinforcing agents.
- the addition of reinforcing agents improves the mechanical properties of the polymer on the one hand and on the other hand leads to increased thermally caused oxidation and the resulting embrittlement.
- GB-PS 1,297,802 discloses a polyolefin composition which contains at least 10% by weight of talc and 0.01 to 5% by weight of an antioxidant and 0.1 to 5% by weight of a polar organic substance, which can preferably be an epoxy , described.
- the antioxidants are added in two stages as primary and secondary antioxidants.
- the primary anti-oxidants include, for example, phenols with branched alkyl groups.
- Secondary antioxidants include alkyl thiodipropionates with alkyl groups that contain 12 or more carbon atoms. So-called talc deactivators are present in addition to these primary and secondary antioxidants. These are preferably epoxides, in particular polyepoxides, amides, polymeric acrylates, aliphatic polyols, aminobenzoic acids, sulfides, aliphatic amines, esters or polyesters and ethers or polyethers.
- the polyolefins according to GB-PS 1,297,802 are produced by melting the various components of powdered polypropylene, talc and antioxidants and talc deactivators in a rotary mixer under a nitrogen atmosphere and pressure to give plates of 0.25 mm and 2.75 mm thickness.
- Ratio can be incorporated and in which less different substances are necessary to achieve such heat stabilization. This object is achieved by a masterbatch containing a polyolefin homo- or copolymer and 10 to 30% by weight of an epoxy compound Formula I.
- R ⁇ hydrogen, an alkyl, aralkyl or aryl group and R 2 is an alkyl, aralkyl, alkylalkoxy, cycloalkyl or cycloalkenyl group and R 3 is the same
- the master batch according to claim 1 contains a mono-, di- or triglycidyl ether.
- the alkyl and aryl groups in the compound of formula I preferably have 1 to 10 carbon atoms.
- R ⁇ hydrogen and R 2 is a C13 to C ⁇ ⁇ arylalkyl radical, preferably a compound of formula III.
- Such compounds can be produced, for example, by condensation of epichlorohydrin with bisphenol A.
- Polyolefins which can be used are low-density polyethylene, high-density polyethylene, linear low-density polyethylene, polypropylene or ethylene-vinyl acetate copolymer. be set.
- the masterbatch can also contain colorants, fillers and reinforcing materials, stabilizers and plasticizers.
- talc, mineral and / or glass fibers can be used as fillers.
- the masterbatch contains 3 to 50% by weight talc as reinforcing agent.
- epoxy compounds are mentioned as examples of epoxy compounds of the formula I: n-butylglycidyl ether, 2-ethylhexyl glycidyl ether, glycidyl ethers of longer-chain aliphatic alcohols, ethylene glycol diglycidyl ether, butoxy-diethylene glycidyl ether, neopentylglycol diglycidyl ether, butanediol diglycidyl ether, butanediol diglycidyl ether Cresyl glycidyl ether, p-tert.
- Masterbatch in the sense of the present invention is understood to mean a concentrated composition in granulated form which, in addition to the polyolefin, contains the epoxy compound in high concentrations of 10 to 30% by weight and, if appropriate, talc in amounts of 3 to 50% by weight.
- This masterbatch is mixed with the raw alcohol to be processed and then processed together with it.
- the masterbatch is preferably added to the polymer in a proportion of 1 to 15% by weight, so that the total content of epoxy resin in the polymer is 0.1 to 1.5% by weight.
- the masterbatch is produced by mixing the polyolefin and the corresponding epoxy compound in a mixing drum, followed by melting and extrusion.
- the homogeneous, molten extrudate is then drawn off as a strand through a water bath and comminuted and dried in a granulator.
- a polypropylene homopolymer with an MFI (230 ° C / 2.16 kg) g / 10 min. from 2 to 3 is mixed intimately in a mixing drum with 20% by weight of a glycidyl ether, which was prepared by condensing bisphenol-A with epichlorohydrin, with an average molecular weight of 1,350 and a melting point of 80 to 100 ° C., and in a two-wave process - extruder extruded.
- the homogeneous, molten extrudate is drawn off as a strand through a water bath and comminuted and dried in a granulator.
- Example 2 the masterbatch from Example 1 is mixed with various polypropylenes and extruded via an extruder.
- Table 1 shows the properties of such a polymer.
- the oven aging was measured by heating the polymers to 150 ° C. until the plastic became brittle, which can be recognized from the roughening of the surface.
- Example 7 the masterbatch according to the invention according to Example 1 is mixed with various polypropylenes and injection molded into chips using an injection molding machine.
- Table 2 shows the results. It can be seen from Table 2 that very good thermal resistances are achieved even during injection molding. Table 2
- a polypropylene homopolymer with an MFI of 2 to 3, 20% by weight of talc and 30% by weight of the alkyl glycidyl ether, which is produced as a condensation product of bisphenol-A and epichlorohydrin, with an average molecular weight of 900 to 1,400 and a melting point from 50 to 100 ° C are intimately mixed in a mixing drum and extruded in a twin-screw extruder.
- the homogeneous, molten extrudate is drawn off as a strand through a water bath and comminuted and dried in a granulator.
- Example 13 to 16 the masterbatch from Example 12 is mixed with various polypropylenes which are filled with talc and extruded via an extruder. Oven aging in Examples 15 and 16 was measured at 120 ° C. The results are shown in Table 3.
- Example * (230 ° C, 16kg) polymer hours
- Example 18 the epoxy resin concentrate from Example 17 is mixed with various polyethylenes using an injection molding machine and injection molded into chips.
- the Oven aging in Examples 20 and 21 was measured at 120 ° C. The results are shown in Table 4.
- Example * (230 ° C / 16kg) polymer hours
- Table 5 shows polypropylene homopolymer which were injection molded into chips on an injection molding machine without the masterbatch according to the invention. It can be seen from Table 5 that the oven aging is three to four times lower than that of the polyolefins mixed with the masterbatches according to the invention. Table 5
- Ver ⁇ polymer oven equals g / 10 min. aging example (230 ° C, 16kg) hours
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL95319584A PL319584A1 (en) | 1994-09-28 | 1995-09-22 | Premix used to stabilise polyolefins |
CZ97945A CZ94597A3 (en) | 1994-09-28 | 1995-09-22 | Master batch for thermal stabilization of polyolefins |
EP95934628A EP0783542A1 (en) | 1994-09-28 | 1995-09-22 | Master batch for heat stabilisation of polyolefins |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4434745A DE4434745C1 (en) | 1994-09-28 | 1994-09-28 | Masterbatch for heat stabilization of polyolefins |
DEP4434745.6 | 1994-09-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1996010052A2 true WO1996010052A2 (en) | 1996-04-04 |
WO1996010052A3 WO1996010052A3 (en) | 1996-05-30 |
Family
ID=6529464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1995/003756 WO1996010052A2 (en) | 1994-09-28 | 1995-09-22 | Master batch for heat stabilisation of polyolefins |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0783542A1 (en) |
CZ (1) | CZ94597A3 (en) |
DE (1) | DE4434745C1 (en) |
HU (1) | HUT77271A (en) |
PL (1) | PL319584A1 (en) |
WO (1) | WO1996010052A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1504895A1 (en) * | 2003-08-08 | 2005-02-09 | A. Schulman Plastics N.V. | Masterbatch containing PMMA and its use for the production of polyolefin films |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3553158A (en) * | 1968-08-30 | 1971-01-05 | Shell Oil Co | Polymer compositions containing talc filler, polar organic compound and antioxidant |
DE2703810A1 (en) * | 1977-01-29 | 1978-08-10 | Basf Ag | Master-batch for propylene polymer moulding compsns. - contains mono:olefin! polymer, talcum and stabiliser mixt. contg. phenolic antioxidant, thio:acid ester and boron cpd. |
-
1994
- 1994-09-28 DE DE4434745A patent/DE4434745C1/en not_active Expired - Fee Related
-
1995
- 1995-09-22 WO PCT/EP1995/003756 patent/WO1996010052A2/en not_active Application Discontinuation
- 1995-09-22 CZ CZ97945A patent/CZ94597A3/en unknown
- 1995-09-22 HU HU9701720A patent/HUT77271A/en unknown
- 1995-09-22 PL PL95319584A patent/PL319584A1/en unknown
- 1995-09-22 EP EP95934628A patent/EP0783542A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3553158A (en) * | 1968-08-30 | 1971-01-05 | Shell Oil Co | Polymer compositions containing talc filler, polar organic compound and antioxidant |
DE2703810A1 (en) * | 1977-01-29 | 1978-08-10 | Basf Ag | Master-batch for propylene polymer moulding compsns. - contains mono:olefin! polymer, talcum and stabiliser mixt. contg. phenolic antioxidant, thio:acid ester and boron cpd. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1504895A1 (en) * | 2003-08-08 | 2005-02-09 | A. Schulman Plastics N.V. | Masterbatch containing PMMA and its use for the production of polyolefin films |
Also Published As
Publication number | Publication date |
---|---|
EP0783542A1 (en) | 1997-07-16 |
DE4434745C1 (en) | 1996-05-23 |
HUT77271A (en) | 1998-03-02 |
PL319584A1 (en) | 1997-08-18 |
WO1996010052A3 (en) | 1996-05-30 |
CZ94597A3 (en) | 1997-08-13 |
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