WO1997011114A9 - Compositions polymeres ayant une haute teneur en charge - Google Patents
Compositions polymeres ayant une haute teneur en chargeInfo
- Publication number
- WO1997011114A9 WO1997011114A9 PCT/US1996/015018 US9615018W WO9711114A9 WO 1997011114 A9 WO1997011114 A9 WO 1997011114A9 US 9615018 W US9615018 W US 9615018W WO 9711114 A9 WO9711114 A9 WO 9711114A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- amount
- substituted
- filled
- composition
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 161
- 229920000642 polymer Polymers 0.000 title claims abstract description 27
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 78
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 78
- 239000000945 filler Substances 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 38
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 37
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 37
- -1 polypropylene Polymers 0.000 claims abstract description 37
- 239000004743 Polypropylene Substances 0.000 claims abstract description 34
- 229920001155 polypropylene Polymers 0.000 claims abstract description 34
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 27
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 27
- 239000010881 fly ash Substances 0.000 claims description 56
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 22
- 229920003023 plastic Polymers 0.000 claims description 22
- 239000004033 plastic Substances 0.000 claims description 22
- 229920005601 base polymer Polymers 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 15
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 13
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 11
- 229960003563 Calcium Carbonate Drugs 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 3
- 229960005069 Calcium Drugs 0.000 claims 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 239000011120 plywood Substances 0.000 claims 1
- 239000004606 Fillers/Extenders Substances 0.000 abstract description 12
- 229920001169 thermoplastic Polymers 0.000 abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 3
- 230000001976 improved Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract 1
- 229920001276 Ammonium polyphosphate Polymers 0.000 description 44
- 239000002956 ash Substances 0.000 description 15
- 239000002585 base Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 239000004005 microsphere Substances 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 238000011049 filling Methods 0.000 description 4
- 238000011068 load Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000004698 Polyethylene (PE) Substances 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
- 229910052623 talc Inorganic materials 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241000719190 Chloroscombrus Species 0.000 description 2
- 210000003739 Neck Anatomy 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- 210000002381 Plasma Anatomy 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 230000001627 detrimental Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XVNVIIRMSUKNKJ-CJAFCWQJSA-N (8R,9S,10R,11R,13R,14R,17S)-17-acetyl-11,14-dihydroxy-10,13-dimethyl-2,6,7,8,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-one Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@]1(O)CC[C@H](C(=O)C)[C@@]1(C)C[C@H]2O XVNVIIRMSUKNKJ-CJAFCWQJSA-N 0.000 description 1
- 101710041953 ApepP Proteins 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L Calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 210000004080 Milk Anatomy 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 210000001138 Tears Anatomy 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 231100000078 corrosive Toxicity 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 230000001186 cumulative Effects 0.000 description 1
- 230000004059 degradation Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 229920000578 graft polymer Polymers 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000003334 potential Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 230000000717 retained Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- 238000010106 rotational casting Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000003068 static Effects 0.000 description 1
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Definitions
- the invention relates generally to extender-filled thermoplastic compositions. More particularly, the invention relates to polyethylene compositions that can be highly loaded with low cost fillers, while maintaining enough flexibility for many critical applications.
- thermoplastic materials have increased not so much through development of new polymers, but through modification of existing ones.
- properties of polymeric compositions such as strength, resistance to UV and chemical oxidation, shielding, electrical conductivity, and cost can be modified.
- extender fillers some inexpensive added extender fillers (hereinafter referred to as "extenders”) increase the strength of the polymeric product and decrease its cost. All too often, however, while the targeted properties improve, some other properties deteriorate beyond the level acceptable for the given application.
- Kiingaman and Ehrenreich, Pyroplastoid Particles, Composition and Method of Production discloses a method for separating filler particles from coal-burning power plants' fly ash for use in a nylon-based composition.
- These pyroplastoid particles are ellipsoidal in shape and at least 90 % by weight are less than 25 ⁇ in size.
- various so-called “coupling agents” are empirically selected, and fillers are treated with them either prior to being mixed into the composition, or during in- line compounding.
- fillers are treated with them either prior to being mixed into the composition, or during in- line compounding.
- silicone hydrates S n H2n+2
- preliminary treatment of a filler with the hydrates of Si or Ti will improve the impact strength, thermal resistance, water stability, and strain-stress properties of filled compositions.
- Atactic polypropylene has been known to increase the levels of carbon black and fire retardants in compositions, Kawai et al., Electroconductive Resin Composition, U.S. Pat. No. 4,425,262 (10 January 1984) and Atwell et al., Flame Retardant Hot Melt Adhesive Compositions Using Brominated Styrene/Atactic Polypropylene Graft Copolymers, U.S. Pat. No. 5,041 ,484 ( 20 August 1991 ). Atactic polypropylene has also been used as a thermally- removable binding agent for ceramics, Dolhert, Clean Burning Green Ceramic Tape Cast System Using Atactic Polypropylene Binder, U.S. Pat. No. 5,256,609 (26 October 1993). However, these compositions are not suitable for molding into rigid components that maintain some flexibility.
- extender fillers improve the modulus of elasticity of a composition, they drastically reduce its elongation at its breaking point. For any product which incorporates flexing elements or which has to withstand even occasional surface impacts, such as containers, furniture, instrument housings, automotive oil pans, bumpers and body panels, this reduced elongation is detrimental. Thus, for all practical purposes these filled polymers cannot be effectively used for items requiring stretching or bending properties.
- Table 1 shows the change of some properties for a selected group of polymer compositions loaded about 40 wt. % with various microspheric fillers.
- these microspheric fillers improve the modulus of elasticity of a composition, but drastically reduce its elongation at the break.
- these filled polymers cannot be effectively used for critical items under stretch or bending.
- This invention relates to extender-filled and atactic polypropylene-treated polymer compositions which, at high levels of loading (30 % by weight and higher), retain sufficient base material elasticity as well as the strength required for many critical applications.
- the compositions of the invention are formed mostly of HDPE, LDPE and LLDPE, filled with atactic polypropylene-treated fly ash.
- the base material may also include recycled polymeric materials.
- the APP-treating permits the composition of the invention to be filled with up to 80% by weight of filler, while retaining its flexibility.
- the highly-filled composition is extruded into pipes, sheets, construction elements or general purpose, collapsible shipping boxes.
- compositions of the invention have increased UV and thermal stability, a smaller coefficient of thermal expansion, and higher resistance to chemical substances and sea water than the prior art compositions, while having a higher productivity.
- polyvinyl chloride PVC
- polyethylene theraphthalate PET
- atactic polypropylene- treated fly ash 30 wt. % and higher.
- calcium carbonate is used as an extender.
- Fig. 1 a is a graph showing experimental results for Maximum Elongation at Yield vs. APP/Ash Ratio for 30 wt. % ash-filled HDPE/LLDPE (70/30) compositions, shown in continuous line, and HDPE/LDPE (70/30) compositions, show in dashed line, for various APP concentrations;
- Fig. 1 b is a graph showing experimental results for Tensile Strength vs. APP/Ash Ratio for 30 wt. % ash-filled HDPE/LLDPE (70/30) compositions, shown in continuous line, and HDPE/LDPE (70/30) compositions, show in dashed line, for various APP concentrations;
- Fig. 1c is a graph showing experimental results for Moment of Rotation vs. APP/Ash Ratio for 30 wt. % ash-filled HDPE/LLDPE (70/30) compositions, shown in continuous line, and HDPE/LDPE (70/30) compositions, show in dashed line, for various APP concentrations;
- Fig. 1d is a graph showing experimental results for Productivity vs. APP/Ash Ratio for 30 wt. % ash-filled HDPE/LLDPE (70/30) compositions, shown in continuous line, and HDPE/LDPE (70/30) compositions, show in dashed line, for various APP concentrations; and
- Fig. 2 is a graph showing the distribution of the fly ash particles used in the examples of the composition of the invention, where dashed line shows distribution of the particles, and continuous line the cumulative distribution.
- fly ash is an ample byproduct of the energy generation process. For all practical purposes, fly ash is inexhaustible source as a low cost extender filler for plastic compositions: in 1993, 60M tons of it were produced in the US, and only 21% used for any useful purpose; the rest of the fly ash was deposited to landfills at the cost of $40 to $60/ton for their producers.
- fly ash When pulverized coal is blown into a high temperature furnace and burned, a byproduct of this process melts into hollow particles resembling microspheres (cenospheres). A large percentage of these particles are hollow because the melt settles around rising gas bubbles. These particles are drawn into the exhaust system and, before they can enter into the atmosphere, are collected by various anti-pollution devices, such as cyclones and baghouses.
- the chemical composition of fly ash depends on the coal which is burned, on the temperature and on other aspects of the burning process. Currently, fly ash has little commercial use. Although some fly ash is used as a filler for concrete, and as an occasional soil additive in agriculture, much of the produced fly ash is disposed in landfills at the expense of the producers.
- the preferred embodiment of the invention uses atactic polypropylene at- [CH2CH(CH3)]n of 0.83 to 0.87 g/cm 3 specific weight (hereinafter referred to as APP).
- APP improves the quality of bond between the filler and the rest of the polymer composition which, in turn, helps provide for even highly filled compositions to retain much of the base material's elongation.
- the best amounts of the modifying agent, APP were evaluated experimentally. In these experiments, two different base materials for compositions were investigated: (a) various blends of HDPE with LDPE, and (b) various blends of HDPE with LLDPE. During these studies, the following relationships were varied and the outcomes compared:
- the amount of fly ash in the composition was changed from 30 to 80 wt. % of the entire composition;
- the amount of the APP was changed from about 0.1 to 15 wt. % of the composition.
- Table 2 contains experimental results for 30 wt. % fly ash-filled HDPE/LDPE (70/30) and HDPE/LLDPE (70/30) compositions for various APP concentrations.
- compositions correspond with Examples 1 and 2, respectively.
- Figs. 1 a - d are graphs of the results listed in Table 2.
- Table 3 is a table listing the properties of 30 wt. % ash-filled, APP-treated HDPE/LDPE (70/30 wt.) composition, according to the preferred embodiment of the invention. -8-
- Creep modules EQ 1 ,100 MPa (-157,000 PSI)
- Table 4 is a table listing the properties of 30 wt. % ash-filled HDPE/LDPE (90/10) and HDPE/LLDPE (90/10) compositions for various APP concentrations.
- Base Polymer Base Polymer: Base Polymer:
- control samples were made for comparison using prior art coupling agents, such as calcium stearate and vinyltriethoxy saline. All other conditions were kept the same.
- test samples show that, starting above a 10 wt. % level of filling, all the test samples became unstretchable, for all practical purposes.
- the test samples break before forming a distinctive neck.
- the fly ash was treated with APP at certain APP/Ash ratios, the tested samples retained up to 70% or even 90% of the base material's cold stretching ability even at 30-35 wt. % loading.
- the upper level of APP/Filler ratio can go as high as 10 wt. %.
- the upper level of APP/Filler can be as high as 15%.
- filled compositions usually lose some of the base material's thermal resistance, the filled compositions treated with APP, especially those filled with fly ash, become more resistant to thermooxidative degradation than the initial base material.
- the fly ash used in the experimental work had the following properties
- the curve was obtained using a device based on Coulter Counter measuring technique. This distribution curve shows that the particles of the fly ash used had the mean about 12 mm, 85% of particles were less than 20 mm, with as little as possible of dust-like fractions (1 mm and less). -12-
- the polymeric components, fillers and APP were blended in M-2400/K two-step mixer (300-330 kg/hour capacity, made by MTI, Germany); hot mixing for 20 to 25 minutes at 90°C, and then cold mixing for 10 to 20 mtnutes at 40°C The primary purpose of the second stage was cooling.
- the pipe had excellent surface and the following properties:
- thermooxidation tests showed that under the conditions specified in Table 10 the invented composition has almost 50% higher resistance to thermal oxidation than HDPE.
- Example 1 The only difference with Example 1 was that instead of LDPE LLDPE was used in the base material.
- the pipe had excellent surface and the following properties:
- Example 2 The same composition as in Example 2 was prepared and extruded into a narrow sheet. From this narrow sheet, standard double-bell test specimens were stamped out and tested on Instron test equipment. The speed of deformation was 50 mm/min. Under such stretch, the test specimens developed well observed necks: the maximum coefficient of cold stretch exceeded 6 before the specimens broke.
- a 500 mm diameter and 300 ⁇ m wall thickness sleeve was produced on a blow extruder.
- the sleeve had the following properties:
- the sleeve was cut into meter-long pieces. Each piece was thermo-welded in such a way that it formed a flexible, waterbed mattress-like solar collector, having 12 passages for heated water, an incoming manifold and an outgoing manifold. These solar collectors were tested for three years in a region which had monthly average solar radiation of approximately 36 MJ/m 2 . On a sunny day, this less than 0.7 m 2 solar collector, when in horizontal position and uncovered, heated 45 liters of water hourly from 20°C to 45°C.
- the sheets also had excellent surface, strong weld, and improved rheology leading to higher productivity than extruding the same sheet from unfilled HDPE. -18-
- This composition can be used for products which should not collect static electricity, such as conveyor belts and various ventilation pipes in mines and chemical plants, and radiators for automobiles.
- Polyurethane foam 80 wt. (polyurethane foam was recaptured from waste stream)
- HPDE cycled 50 wt (was recaptured from waste stream as milk and water bottles)
- composition was extruded into 50 mm x 4 mm pipe.
- the pipe was tested for its maximum deformation under a load of 1 ,000 Newton acting perpendicular to its wall; the surface of contact was 25 cm 2 . That load caused less than a 10% change in diameter.
- Such a pipe can be laid into concrete. -20-
- Example 4 The same composition as in Example 4 was prepared, and two different sizes of hoses were extruded from this composition:
- OD 100 mm
- wall thickness 200 ⁇ m
- HDPE (recycled) 38 wt.
- a 100 ⁇ m film was extruded from it.
- composition A consisted of fresh HDPE and fresh LDPE:
- Composition B is a composition of Composition B:
- a 1.5 mm thick and 1 ,500 mm wide sheet was coextruded from these two compositions.
- Two outside layers of the sheet were coextruded from composition A, and the middle layer from composition B.
- the outside and inside layers were both 50 ⁇ m thick, the middle layer was 1.4 mm thick. This sheet had excellent resistance to the elements.
- Example 13 The outside layers were the same as Example 13, but a different composition B was used for the middle layer.
- Recycled polyethylene therephthalate (PET) was used instead of HDPE/LDPE, and the proportions of the composition were different:
- Example 13 a 1.5 mm thick and 1 ,500 mm wide sheet was coextruded from these two compositions.
- Two outside layers of the sheet were coextruded from composition A, and the middle layer from composition B.
- the outside and inside layers were both 50 ⁇ m thick, the middle layer was 1.4 mm thick.
- This sheet had also excellent resistance to the elements.
- the composition was extruder to insulate about 1 mm 2 copper wire; the insulation was about 300 ⁇ m thick. The insulation displayed good adhesion to the wire and good resistance to the elements.
- the strip was welded with a strip made of HDPE, and another strip made of PVC.
- the welds were excellent.
- the composition was used for anti-corrosion coating of 100 mm metal pipes.
- the composition was loaded into a hopper of plasma deposition equipment and deposited as a 250 ⁇ m to 300 ⁇ m thick coating. During the plasma-deposition, the surface temperature of the pipes was kept over 150°C; -25-
- the equipment used for plasma deposition was that widely applied in anti- corrosive coating of pipe.
Abstract
Les compositions de polymères à haute teneur en charges de l'invention conservent une proportion suffisante de l'élasticité du matériau de base et de sa résistance mécanique, nécessaires pour beaucoup d'applications critiques. Les compositions de l'invention sont constituées de polyéthylène haute densité, de polyéthylène basse densité et de polyéthylène basse densité linéaire, contenant une charge traitée par du polypropylène atactique. Ces compositions sont utilisées pour réaliser par extrusion des tubes ou des plaques. Le traitement par le polypropylène atactique permet aux compositions de l'invention de recevoir jusqu'à 80 % de charge, tout en restant flexibles. Les compositions à haute teneur en charge de l'invention ont une durabilité accrue, leur plage de températures d'utilisation est plus large, leur compatibilité avec d'autres matériaux thermoplastiques est améliorée dans les opérations de soudage, de co-injection et de co-extrusion, et elles sont moins chères à produire que les compositions de la technique antérieure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU70760/96A AU7076096A (en) | 1995-09-20 | 1996-09-17 | Highly-filled polymer compositions |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US53145895A | 1995-09-20 | 1995-09-20 | |
US08/531,458 | 1995-09-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997011114A1 WO1997011114A1 (fr) | 1997-03-27 |
WO1997011114A9 true WO1997011114A9 (fr) | 1997-06-12 |
Family
ID=24117724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/015018 WO1997011114A1 (fr) | 1995-09-20 | 1996-09-17 | Compositions polymeres ayant une haute teneur en charge |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU7076096A (fr) |
WO (1) | WO1997011114A1 (fr) |
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US7763341B2 (en) | 2004-01-23 | 2010-07-27 | Century-Board Usa, Llc | Filled polymer composite and synthetic building material compositions |
AU2005267399A1 (en) | 2004-06-24 | 2006-02-02 | Century-Board Usa, Llc | Continuous forming apparatus for three-dimensional foamed products |
US20060100466A1 (en) | 2004-11-08 | 2006-05-11 | Holmes Steven A | Cycloalkane base oils, cycloalkane-base dielectric liquids made using cycloalkane base oils, and methods of making same |
US20070222105A1 (en) | 2006-03-24 | 2007-09-27 | Century-Board Usa, Llc | Extrusion of polyurethane composite materials |
US20090308009A1 (en) * | 2008-06-11 | 2009-12-17 | Boor Billibob J | Composite Material Roofing Structure |
US9481759B2 (en) | 2009-08-14 | 2016-11-01 | Boral Ip Holdings Llc | Polyurethanes derived from highly reactive reactants and coal ash |
US8846776B2 (en) | 2009-08-14 | 2014-09-30 | Boral Ip Holdings Llc | Filled polyurethane composites and methods of making same |
WO2013052732A1 (fr) | 2011-10-07 | 2013-04-11 | Boral Industries Inc. | Composites de polymère inorganique/polymère organique et procédés pour les préparer |
ITMI20130557A1 (it) | 2013-04-09 | 2014-10-10 | Piaggio & C Spa | Miscela poliolefinica migliorata |
WO2014168633A1 (fr) | 2013-04-12 | 2014-10-16 | Boral Ip Holdings (Australia) Pty Limited | Composites formés à partir d'une charge absorbante et d'un polyuréthane |
US10138341B2 (en) | 2014-07-28 | 2018-11-27 | Boral Ip Holdings (Australia) Pty Limited | Use of evaporative coolants to manufacture filled polyurethane composites |
WO2016022103A1 (fr) | 2014-08-05 | 2016-02-11 | Amitabha Kumar | Composites polymères chargés comprenant des fibres de courte longueur |
WO2016118141A1 (fr) | 2015-01-22 | 2016-07-28 | Boral Ip Holdings (Australia) Pty Limited | Composites de polyuréthanne hautement chargés |
CN104829972A (zh) * | 2015-05-15 | 2015-08-12 | 六盘水康博木塑科技有限公司 | 粉煤灰装饰墙板及其制备方法 |
WO2016195717A1 (fr) | 2015-06-05 | 2016-12-08 | Boral Ip Holdings (Australia) Pty Limited | Composites de polyuréthane chargés à charges légères |
KR20180018723A (ko) | 2015-06-15 | 2018-02-21 | 이메리즈 미네랄즈 리미티드 | 사출 성형을 위한 조성물 |
CN105348564B (zh) * | 2015-10-30 | 2018-06-26 | 太原理工大学 | 一种低密度复合白卡纸专用无机粉体的制备方法 |
US20170267585A1 (en) | 2015-11-12 | 2017-09-21 | Amitabha Kumar | Filled polyurethane composites with size-graded fillers |
WO2017147465A1 (fr) | 2016-02-25 | 2017-08-31 | Interfacial Consultants Llc | Concentrés polymères hautement chargés |
CN106674817A (zh) * | 2016-12-29 | 2017-05-17 | 六盘水康博木塑科技有限公司 | 一种粉煤灰生态板及其制作方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030662A (en) * | 1988-08-11 | 1991-07-09 | Polymerix, Inc. | Construction material obtained from recycled polyolefins containing other polymers |
-
1996
- 1996-09-17 WO PCT/US1996/015018 patent/WO1997011114A1/fr active Application Filing
- 1996-09-17 AU AU70760/96A patent/AU7076096A/en not_active Abandoned
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