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WO2008046360A1 - Corplasten materials - thermoplastic polymers for rotomolding filled with powdery corundum - Google Patents

Corplasten materials - thermoplastic polymers for rotomolding filled with powdery corundum Download PDF

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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
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.)
Ceased
Application number
PCT/CZ2007/000022
Other languages
French (fr)
Inventor
Pavel Vcelak
Bohumil Meduna
Michal Sprachta
Miroslav Doucek
Richard Jirek
Leos Janda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2008046360A1 publication Critical patent/WO2008046360A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Materials for rotomolding consisting of a) 100 parts of basic thermoplastic polymer (PE, PP, PA); b) up to 30 parts of corundum of granularity 100 to 300 µm; c) further standard additives Products made from that material by rotomolding technology, when the additional material distributed in the basic one either almost regularly, or it is concentrated close to the operation (function) surface of the product.

Description

CORPLASTEN materials - thermoplastic polymers for rotomolding filled with powdery corundum
Basic material - thermopolymer (PE, PP, PA) for rotomolding
Additive material - 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.
We receive a material, which is can be processed to the required shape by the original rotomolding technology, and whose basic mechanical properties are kept (elasticity, shape memory, resistance against chemicals, etc.) and where the additive material brought multiple increase of wear resistance.
3.1.
CORPLASTEN materials- thermoplastic polymers for rotomolding filled with powdery corundum.
3.2.
Rotomolding of thermoplastic materials
3.3.
Currently are 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.
3.6.
In quarries and sand and gravel mines (for instance) there are 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. When 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.
3.7.
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.
Mixture of thermoplastic polymer (PE, PP, PA) - as basic material, and mineral filler - powdery corundum (Al2O3) of particles size 100 - 300 Dm up to 30% of weight of the basic material.
Production method - rotomolding.
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.
Potential use of the products made from 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.

Claims

Patent claims
1. Materials for rotomolding, consisting of a) 100 parts of basic thermoplastic polymer (PE, PP, PA) and b) usual aditives ,
specific with that it further consists c) up to 30 parts of powdery corundum (Al2O3) of particles size 100 - 300Dm.
2. Rotomolded products specific with that they are made from the material according to the Claim 1.
PCT/CZ2007/000022 2006-10-20 2007-03-30 Corplasten materials - thermoplastic polymers for rotomolding filled with powdery corundum Ceased WO2008046360A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPV2006-666 2006-10-20
CZ20060666A CZ2006666A3 (en) 2006-10-20 2006-10-20 CORPLASTEN material range - thermoplastic polymers filled with powder corundum and intended for rotary molding

Publications (1)

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

Family

ID=38705084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2007/000022 Ceased WO2008046360A1 (en) 2006-10-20 2007-03-30 Corplasten materials - thermoplastic polymers for rotomolding filled with powdery corundum

Country Status (2)

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

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 (en) * 1989-02-16 1990-08-27 Toray Ind Inc Biaxially oriented polyester film
EP0413258A1 (en) * 1989-08-16 1991-02-20 BASF Aktiengesellschaft Flame retardant thermoplastic mouldings based on polyamides and polyesters elastomers
JPH07126497A (en) * 1993-11-01 1995-05-16 Toray Ind Inc Polyester composition
JPH09118773A (en) * 1995-10-25 1997-05-06 Sumitomo Chem Co Ltd Anti-blocking agent, resin composition and film
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 (en) * 2000-03-07 2001-09-11 Toray Ind Inc Polyphenylene sulfide resin composition
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 (en) * 1989-02-16 1990-08-27 Toray Ind Inc Biaxially oriented polyester film
EP0413258A1 (en) * 1989-08-16 1991-02-20 BASF Aktiengesellschaft Flame retardant thermoplastic mouldings based on polyamides and polyesters elastomers
JPH07126497A (en) * 1993-11-01 1995-05-16 Toray Ind Inc Polyester composition
JPH09118773A (en) * 1995-10-25 1997-05-06 Sumitomo Chem Co Ltd Anti-blocking agent, resin composition and film
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 (en) * 2000-03-07 2001-09-11 Toray Ind Inc Polyphenylene sulfide resin composition

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 (en) 2008-05-14

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