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1. WO2002022335 - METHOD FOR PRODUCING A GRANULATED INTERMEDIATE PRODUCT THAT IS TO BE SUBJECTED TO A SUBSEQUENT PROCESSING IN ORDER TO FORM PLASTIC SHAPED BODIES

Publication Number WO/2002/022335
Publication Date 21.03.2002
International Application No. PCT/EP2001/010006
International Filing Date 30.08.2001
Chapter 2 Demand Filed 11.04.2002
IPC
B29B 9/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9Making granules
08by agglomerating smaller particles
B29B 9/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9Making granules
12characterised by structure or composition
14fibre-reinforced
CPC
B29B 9/08
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9Making granules
08by agglomerating smaller particles
B29B 9/14
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9Making granules
12characterised by structure or composition
14fibre-reinforced
B29K 2105/06
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2105Condition, form or state of moulded material ; or of the material to be shaped
06containing reinforcements, fillers or inserts
B29K 2105/16
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2105Condition, form or state of moulded material ; or of the material to be shaped
06containing reinforcements, fillers or inserts
16Fillers
B29K 2311/10
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2311Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
10Natural fibres, e.g. wool or cotton
Applicants
  • FRAUHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. [DE]/[DE] (AllExceptUS)
  • TECNARO GESELLSCHAFT ZUR INDUSTRIELLEN ANWENDUNG NACHWACHSENDER ROHSTOFFE MBH [DE]/[DE] (AllExceptUS)
  • EYERER, Peter [DE]/[DE] (UsOnly)
  • INONE, Emilia [DE]/[DE] (UsOnly)
  • NÄGELE, Helmut [DE]/[DE] (UsOnly)
  • EISENREICH, Norbert [DE]/[DE] (UsOnly)
  • ECKL, Wilhelm [DE]/[DE] (UsOnly)
  • PFITZER, Jürgen [DE]/[DE] (UsOnly)
Inventors
  • EYERER, Peter
  • INONE, Emilia
  • NÄGELE, Helmut
  • EISENREICH, Norbert
  • ECKL, Wilhelm
  • PFITZER, Jürgen
Agents
  • LICHTI, Heiner
Priority Data
100 45 794.015.09.2000DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG EINES GRANULATFÖRMIGEN ZWISCHENPRODUKTES FÜR DIE WEITERVERARBEITUNG ZU KUNSTSTOFF-FORMKÖRPERN
(EN) METHOD FOR PRODUCING A GRANULATED INTERMEDIATE PRODUCT THAT IS TO BE SUBJECTED TO A SUBSEQUENT PROCESSING IN ORDER TO FORM PLASTIC SHAPED BODIES
(FR) PROCEDE DE FABRICATION D'UN PRODUIT INTERMEDIAIRE GRANULE, DESTINE A ETRE TRAITE ULTERIEUREMENT POUR FORMER DES CORPS FAÇONNES EN PLASTIQUE
Abstract
(DE)
Zur Herstellung eines aus einem feinpartikulären thermoplastischen oder thermoelastischen Polymer und im wesentlichen inerten Füllstoffen bestehenden granulatförmigen Zwischenproduktes für die Weiterverarbeitung zu Kunststoff-Formkörpern durch thermoplastische Verarbeitungsverfahren wird vorgeschlagen, das Polymer in Pulver- oder Partikelform mit den Füllstoffen zu mischen und die Pulvermischung ohne Plastifizieren des Polymers ausschliesslich unter mechanischem Druck zu rieselfähigen Agglomeraten mit grösserer Korngrösse zu kompaktieren. Ein solches Agglomerat lässt sich wie ein herkömmliches Kunststoff-Granulat zu Formkörpern verarbeiten, wobei bei der Herstellung des Zwischenproduktes einerseits thermische Beeinträchtigungen sowohl der Füllstoffe als auch der Molekularstruktur des Polymers zuverlässig vermieden werden, andererseits aussergewöhnlich hohe Füllgrade erzielt werden können.
(EN)
The aim of the invention is to produce a granulated intermediate product, which is comprised of a fine-particle thermoplastic or thermoelastic polymer and of essentially inert fillers, and which is to be subjected to a subsequent processing in order to form plastic shaped bodies by using thermoplastic processing methods. To this end, the invention provides that the polymer is mixed in powder form or particle form with the fillers and, without plasticizing the polymer, the powder mixture is compacted solely under mechanical pressure in order to form pourable agglomerates having a larger grain size. An agglomerate of this type can be processed like a conventional plastic granulate in order to form shaped bodies, whereby during the production of the intermediate product, thermal damages to both the fillers as well as to the molecular structure of the polymer can be reliably prevented, and exceptionally high filling ratios can be attained.
(FR)
L'invention concerne un procédé de fabrication d'un produit intermédiaire granulé, composé d'un polymère thermoplastique ou thermoélastique à particules fines et de charges essentiellement inertes, ledit produit étant destiné à être traité ultérieurement pour former des corps façonnés en plastique par des procédés de transformation thermoplastiques. Ledit procédé consiste à mélanger le polymère sous forme pulvérulente ou particulaire avec les charges, puis à compacter le mélange pulvérulent, sans plastifier le polymère, exclusivement sous l'effet d'une pression mécanique pour former des agglomérats coulants présentant une grosseur de grain supérieure. Ce type d'agglomérat peut être traité comme un granulat de plastique classique pour former des corps façonnés, l'avantage étant que, lors de la fabrication du produit intermédiaire, toute dégradation thermique des charges et de la structure moléculaire du polymère peut être évitée de manière fiable et, d'autre part, des taux de remplissage exceptionnellement élevés peuvent être obtenus.
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