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WO2008046360A1 - Matériaux en coroplast - polymères thermoplastiques pour rotomoulage remplis de corindon poudreux - Google Patents

Matériaux en coroplast - polymères thermoplastiques pour rotomoulage remplis de corindon poudreux Download PDF

Info

Publication number
WO2008046360A1
WO2008046360A1 PCT/CZ2007/000022 CZ2007000022W WO2008046360A1 WO 2008046360 A1 WO2008046360 A1 WO 2008046360A1 CZ 2007000022 W CZ2007000022 W CZ 2007000022W WO 2008046360 A1 WO2008046360 A1 WO 2008046360A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotomolding
materials
corundum
powdery
corplasten
Prior art date
Application number
PCT/CZ2007/000022
Other languages
English (en)
Inventor
Pavel Vcelak
Bohumil Meduna
Michal Sprachta
Miroslav Doucek
Richard Jirek
Leos Janda
Original Assignee
Pavel Vcelak
Bohumil Meduna
Michal Sprachta
Miroslav Doucek
Richard Jirek
Leos Janda
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pavel Vcelak, Bohumil Meduna, Michal Sprachta, Miroslav Doucek, Richard Jirek, Leos Janda filed Critical Pavel Vcelak
Publication of WO2008046360A1 publication Critical patent/WO2008046360A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/003—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould

Definitions

  • CORPLASTEN materials thermoplastic polymers for rotomolding filled with powdery corundum
  • Additive material is distributed in the basic one purposefully to substantially improve the abrasion resistance of the final product made from this material by rotomolding technology.
  • CORPLASTEN materials thermoplastic polymers for rotomolding filled with powdery corundum.
  • thermoplastic polymers filled just by pigments, which change their color, and by other powder fillers, e.g. soot, which change electric properties of the basic material - electric conductivity, surface resistance. These fillers are added in volume of few weight per-cents, not to affect substantially negative the mechanic properties of the basic material - thermoplast. When are the products made from these standard materials subject to long-term abrasive wear of the flowing material, they are quickly worn up to destruction. 3.4.
  • CORPLASTEN materials are thermoplastic polymers refined with a dose of additional inorganic material - powdery corundum - in ratio according to the estimated use of the final product, with that this additive material is purposefully distributed in the basic material to increase substantially the wear resistance of the final material with that the other mechanical properties are either kept or are still sufficient for the given application.
  • CORPLASTEN materials should be so used mainly for applications where other materials - of lower durability or substantially more expensive ones - have been used.
  • chutes consisting of steel sheet or polypropylene cone parts hung on ropes or chains, through whose the material flows to the destined place. Single parts of that chute are either heavy and/or not durable enough and it is necessary to change them in few months. This requires to stop the line and causes economical losses.
  • the chute parts are made from CORPLASTEN material, the set is substantially lighter compared to steel one and much more durable compared to both steel and polypropylene. Tested sample did not show substantial wear after more than 25.000 tons of sand passed through it.
  • Shaped parts in direct contact with abrasive material with requirements for easy handling or exchange, low weight, long service live, low price, cleanliness (contact with drink water or food). 4.
  • thermoplastic polymer PE, PP, PA
  • mineral filler - powdery corundum Al 2 O 3
  • Additive material is distributed in the basic material either almost uniformly, or it is concentrated close to the work (function) surface of the final product.
  • CORPLASTEN materials they can replace those made from standard materials - steel, cast iron, steel sheets - where it will bring substantial economic effect - long durability and easy handling, ecological effect - lower environmental load at material and product arise, and ergonomic effect - e.g. reduction of noise in chute applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne des matériaux de rotomoulage formés de: a) 100 parties de polymère thermoplastique basique (PE, PP, PA); b) jusqu'à 30 parties de corindon de 100 à 300 µm de granularité; c) d'autres produits additifs standards faits de ce matériau par la technologie du rotomoulage, le matériau supplémentaire étant distribué dans le matériau de base soit presque régulièrement, soit en concentré près de la surface d'utilisation (fonction) du produit.
PCT/CZ2007/000022 2006-10-20 2007-03-30 Matériaux en coroplast - polymères thermoplastiques pour rotomoulage remplis de corindon poudreux WO2008046360A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ20060666A CZ2006666A3 (cs) 2006-10-20 2006-10-20 Rada materiálu CORPLASTEN - termoplastické polymery pro rotacní tvárení plnené práškovým korundem
CZPV2006-666 2006-10-20

Publications (1)

Publication Number Publication Date
WO2008046360A1 true WO2008046360A1 (fr) 2008-04-24

Family

ID=38705084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2007/000022 WO2008046360A1 (fr) 2006-10-20 2007-03-30 Matériaux en coroplast - polymères thermoplastiques pour rotomoulage remplis de corindon poudreux

Country Status (2)

Country Link
CZ (1) CZ2006666A3 (fr)
WO (1) WO2008046360A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110308A (en) * 1975-08-25 1978-08-29 Asahi Glass Company Ltd. Stabilized ethylene-tetrafluoroethylene copolymer composition
US4591633A (en) * 1982-12-16 1986-05-27 Chisso Corporation Deodorized polyolefins and process for the preparation thereof
JPH02214734A (ja) * 1989-02-16 1990-08-27 Toray Ind Inc 二軸配向ポリエステルフィルム
EP0413258A1 (fr) * 1989-08-16 1991-02-20 BASF Aktiengesellschaft Masses à mouler thermoplastiques ignifugées à base de polyamides et de polyesters élastomères
JPH07126497A (ja) * 1993-11-01 1995-05-16 Toray Ind Inc ポリエステル組成物
JPH09118773A (ja) * 1995-10-25 1997-05-06 Sumitomo Chem Co Ltd アンチブロッキング剤、樹脂組成物およびフィルム
US5858527A (en) * 1995-10-30 1999-01-12 Skc Limited Biaxially oriented polyester film
US6203906B1 (en) * 1997-01-10 2001-03-20 Alcan International Limited Abrasion resistant polymer
JP2001247768A (ja) * 2000-03-07 2001-09-11 Toray Ind Inc ポリフェニレンスルフィド樹脂組成物
US6348535B1 (en) * 1998-01-29 2002-02-19 Sumitomo Chemical Company, Limited Thermoplastic elastomer composition powder, powder molding process with the same, and moldings

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110308A (en) * 1975-08-25 1978-08-29 Asahi Glass Company Ltd. Stabilized ethylene-tetrafluoroethylene copolymer composition
US4591633A (en) * 1982-12-16 1986-05-27 Chisso Corporation Deodorized polyolefins and process for the preparation thereof
JPH02214734A (ja) * 1989-02-16 1990-08-27 Toray Ind Inc 二軸配向ポリエステルフィルム
EP0413258A1 (fr) * 1989-08-16 1991-02-20 BASF Aktiengesellschaft Masses à mouler thermoplastiques ignifugées à base de polyamides et de polyesters élastomères
JPH07126497A (ja) * 1993-11-01 1995-05-16 Toray Ind Inc ポリエステル組成物
JPH09118773A (ja) * 1995-10-25 1997-05-06 Sumitomo Chem Co Ltd アンチブロッキング剤、樹脂組成物およびフィルム
US5858527A (en) * 1995-10-30 1999-01-12 Skc Limited Biaxially oriented polyester film
US6203906B1 (en) * 1997-01-10 2001-03-20 Alcan International Limited Abrasion resistant polymer
US6348535B1 (en) * 1998-01-29 2002-02-19 Sumitomo Chemical Company, Limited Thermoplastic elastomer composition powder, powder molding process with the same, and moldings
JP2001247768A (ja) * 2000-03-07 2001-09-11 Toray Ind Inc ポリフェニレンスルフィド樹脂組成物

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199040, Derwent World Patents Index; AN 1990-302372, XP002460420 *
DATABASE WPI Week 199528, Derwent World Patents Index; AN 1995-213130, XP002460419 *
DATABASE WPI Week 199728, Derwent World Patents Index; AN 1997-306614, XP002460418 *
DATABASE WPI Week 200220, Derwent World Patents Index; AN 2002-150803, XP002460417 *

Also Published As

Publication number Publication date
CZ2006666A3 (cs) 2008-05-14

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