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1. WO2010042585 - LOST CORE PROCESS FOR PRODUCING HOLLOW ARTICLES AND POLYMERIC MUFFLER HOUSING

Publication Number WO/2010/042585
Publication Date 15.04.2010
International Application No. PCT/US2009/059794
International Filing Date 07.10.2009
IPC
B29C 45/44 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
40Removing or ejecting moulded articles
44for undercut articles
B29C 33/52 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33Moulds or cores; Details thereof or accessories therefor
44with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
52soluble or fusible
CPC
B29C 2033/525
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33Moulds or cores; Details thereof or accessories therefor
44with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
52soluble or fusible
525Cores made of frozen liquids, e.g. ice
B29C 2045/4464
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
40Removing or ejecting moulded articles
44for undercut articles
4457using fusible, soluble or destructible cores
4464injecting the core and the undercut article in separate cavities
B29C 33/52
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33Moulds or cores; Details thereof or accessories therefor
44with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
52soluble or fusible
B29C 45/4457
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
40Removing or ejecting moulded articles
44for undercut articles
4457using fusible, soluble or destructible cores
F01N 1/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
1Silencing apparatus characterised by method of silencing
F01N 13/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
13Exhaust or silencing apparatus characterised by constructional features ; ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
16Selection of particular materials
Applicants
  • E. I. DU PONT DE NEMOURS AND COMPANY [US]/[US] (AllExceptUS)
  • DOY, Guillaume [FR]/[FR] (UsOnly)
  • LEBOEUF, Philippe [FR]/[FR] (UsOnly)
  • PALICKA, Miroslav [CZ]/[CZ] (UsOnly)
Inventors
  • DOY, Guillaume
  • LEBOEUF, Philippe
  • PALICKA, Miroslav
Agents
  • HAMBY, William, H.
Priority Data
08290943.307.10.2008EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LOST CORE PROCESS FOR PRODUCING HOLLOW ARTICLES AND POLYMERIC MUFFLER HOUSING
(FR) PROCÉDÉ À ÂME PERDUE POUR FABRIQUER DES ARTICLES CREUX ET BOÎTIER DE SILENCIEUX POLYMÈRE
Abstract
(EN)
This invention relates to the field of manufacturing hollow articles using a lost core process using an aqueous solution of sodium acetate as lost core, in particular it relates to polymeric muffler applications.
(FR)
Cette invention concerne le domaine de la fabrication d'articles creux à l’aide d’un procédé à âme perdue qui utilise une solution aqueuse d'acétate de sodium en tant qu’âme perdue. L'invention concerne en particulier des applications de silencieux polymère.
Also published as
Latest bibliographic data on file with the International Bureau