CA2215253A1 - Articles expanses moules par rotation - Google Patents

Articles expanses moules par rotation Download PDF

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Publication number
CA2215253A1
CA2215253A1 CA002215253A CA2215253A CA2215253A1 CA 2215253 A1 CA2215253 A1 CA 2215253A1 CA 002215253 A CA002215253 A CA 002215253A CA 2215253 A CA2215253 A CA 2215253A CA 2215253 A1 CA2215253 A1 CA 2215253A1
Authority
CA
Canada
Prior art keywords
thermoplastic
range
layer
cells
pellets
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.)
Abandoned
Application number
CA002215253A
Other languages
English (en)
Inventor
Calvin K. Schram
Michel Anderson
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.)
ExxonMobil Chemical Patents Inc
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 CA2215253A1 publication Critical patent/CA2215253A1/fr
Abandoned 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
    • 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
    • B29C41/22—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • 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
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0423—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by density separation
    • B29C44/043—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by density separation using a rotating mould
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B29B2009/125—Micropellets, microgranules, microparticles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0641—MDPE, i.e. medium density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/251—Particles, powder or granules

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

La présente invention concerne des articles expansés moulés par rotation ainsi que leur procédé de fabrication. On prépare ces articles en introduisant des agents gonflants dans des micro-pastilles. Ces articles fabriqués selon ce procédé possèdent une structure cellulaire et une uniformité améliorées qui conduisent à des propriétés améliorées et généralement uniformes de l'article, y compris par exemple les valeurs d'isolation et la résistance aux chocs.
CA002215253A 1995-03-31 1996-03-15 Articles expanses moules par rotation Abandoned CA2215253A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41439595A 1995-03-31 1995-03-31
US08/414,395 1995-03-31

Publications (1)

Publication Number Publication Date
CA2215253A1 true CA2215253A1 (fr) 1996-10-03

Family

ID=23641273

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002215253A Abandoned CA2215253A1 (fr) 1995-03-31 1996-03-15 Articles expanses moules par rotation

Country Status (3)

Country Link
EP (1) EP0817711A1 (fr)
CA (1) CA2215253A1 (fr)
WO (1) WO1996030180A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6214272B1 (en) * 1998-07-14 2001-04-10 Brunswick Corporation Rotational molding process
US6894109B1 (en) 1998-12-11 2005-05-17 Borealis Technology Oy Method of producing pelletized polyolefin
GB9827432D0 (en) 1998-12-11 1999-02-03 Borealis As Method
GB2354732A (en) 1999-09-28 2001-04-04 Glance Tech Ltd A cold storage container
ATE554924T1 (de) * 2002-11-21 2012-05-15 Total Petrochemicals Res Feluy Mehrschichtiges rotationsformen
CA2515672A1 (fr) * 2003-04-02 2004-11-04 Donald W. Hayward Procede destine a preparer des particules extremement petites de terephthalate de polyethylene recycle
NO20042281L (no) * 2004-06-02 2005-12-05 Primo Norge As Flyteelement samt fremgamgsmate for fremstilling av slike
GB0414372D0 (en) * 2004-06-26 2004-07-28 Clarehill Plastics Ltd Rotational moulding product and process
AR058107A1 (es) * 2005-10-26 2008-01-23 Phar H Azodicarbonamida micronizada, su preparacion y su utilizacion
US8969435B2 (en) * 2007-08-28 2015-03-03 Gala Industries, Inc. Method and apparatus for enhanced minimal shear molding utilizing extrusional, pelletization, and melt rheological control of pellets and micropellets and molded objects made therefrom
CN105121110B (zh) * 2013-02-11 2017-05-03 因温斯特技术公司 微粒化树脂、其制造和用途
WO2019018839A1 (fr) 2017-07-21 2019-01-24 Zephyros, Inc. Dispositifs d'étanchéité revêtus
EP3539742A1 (fr) * 2018-03-15 2019-09-18 SABIC Global Technologies B.V. Moulage par rotation de composites extrudés par filière comprenant un fluoropolymère fibrillé
CN112300497B (zh) * 2020-10-29 2023-04-07 中国石油化工股份有限公司 一种滚塑工艺低泡聚丙烯组合物及其制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861404A (en) * 1970-03-23 1975-01-21 Monsanto Chemicals Tobacco smoke filter
CA983226A (en) * 1972-05-11 1976-02-10 Du Pont Of Canada Limited Rotational moulding of articles with foamed inner layer
JPS60137684A (ja) * 1983-12-26 1985-07-22 Dainippon Printing Co Ltd 立体模様を有する化粧シ−トの製造法
CA1280572C (fr) * 1984-05-01 1991-02-26 Llewellyn A. Gilman, Jr. Methode de moulage rotatif, et coque de bateau
JPS62181343A (ja) * 1986-02-06 1987-08-08 Kishimoto Akira 缶蓋用密封剤組成物
GB2193594A (en) * 1986-08-08 1988-02-10 Stc Plc Water blocking in cables
DE68915817T2 (de) * 1988-03-01 1994-11-03 Toray Industries Verfahren zunm Herstellen eines geformten laminierten Gegenstandes.
JPH03292378A (ja) * 1990-04-10 1991-12-24 Nitto Denko Corp マイクロカプセル、それを用いた接着剤組成物及びその硬化方法
JPH06342223A (ja) * 1993-06-01 1994-12-13 Toyo Kasei Kogyo Co Ltd 新規な不揮発性感熱マイクロカプセルトナ−
GB9401214D0 (en) * 1994-01-22 1994-03-16 Univ Belfast A method of rotational moulding and rotationally moulded products

Also Published As

Publication number Publication date
EP0817711A1 (fr) 1998-01-14
MX9707361A (es) 1998-07-31
WO1996030180A1 (fr) 1996-10-03

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