NL7304815A - Shaped plastic article - by injecting curable liquid into preheated, rotating mould - Google Patents

Shaped plastic article - by injecting curable liquid into preheated, rotating mould

Info

Publication number
NL7304815A
NL7304815A NL7304815A NL7304815A NL7304815A NL 7304815 A NL7304815 A NL 7304815A NL 7304815 A NL7304815 A NL 7304815A NL 7304815 A NL7304815 A NL 7304815A NL 7304815 A NL7304815 A NL 7304815A
Authority
NL
Netherlands
Prior art keywords
mould
curable
liquid
preheated
curable liquid
Prior art date
Application number
NL7304815A
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 filed Critical
Publication of NL7304815A publication Critical patent/NL7304815A/en

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
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes 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
    • B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

Shaped articles, esp. with a high ratio between wall thickness and total diameter, such as wheels, pipes, rollers and automobile bumpers, are produced by (a) preheating a mould to 40-100 degrees C, (b) injecting a curable liq. into the mould while it is rotated at 50-1000 r.p.m., and (c) allowing the liquid in the mould to cure. Specif. the curable liquid is a polyurethane precursor consisting of a mixt. of a polyisocyanate and a polyol. The liquid may be foamable. Two or three different curable liquids may be introduced successively into the mould. One of the liquids may be foamable. Completely cured articles with a good surface without cracks. Laminated articles can be produced by using curable liquids of different compositions.
NL7304815A 1972-04-10 1973-04-06 Shaped plastic article - by injecting curable liquid into preheated, rotating mould NL7304815A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1640772 1972-04-10
GB5048372 1972-11-02

Publications (1)

Publication Number Publication Date
NL7304815A true NL7304815A (en) 1973-10-12

Family

ID=26252023

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7304815A NL7304815A (en) 1972-04-10 1973-04-06 Shaped plastic article - by injecting curable liquid into preheated, rotating mould

Country Status (1)

Country Link
NL (1) NL7304815A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474248A2 (en) * 1990-09-07 1992-03-11 ENICHEM S.p.A. Process for the manufacture of shaped bodies with integrated polyurethane skin, and shaped bodies obtained thereby
WO2007144426A1 (en) * 2006-06-16 2007-12-21 Commissariat A L'energie Atomique Method for manufacturing a sealing bladder made of thermosetting polymer for a tank containing a pressurized fluid, such as a composite tank, and a tank

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474248A2 (en) * 1990-09-07 1992-03-11 ENICHEM S.p.A. Process for the manufacture of shaped bodies with integrated polyurethane skin, and shaped bodies obtained thereby
EP0474248A3 (en) * 1990-09-07 1992-08-05 Ecp Enichem Polimeri S.R.L. Process for the manufacture of shaped bodies with integrated polyurethane skin, and shaped bodies obtained thereby
US5223193A (en) * 1990-09-07 1993-06-29 Ecp Enichem Polimeri S.R.L. Process for preparing shaped bodies with integrated polyurethane skin, and shaped bodies obtained by such process
WO2007144426A1 (en) * 2006-06-16 2007-12-21 Commissariat A L'energie Atomique Method for manufacturing a sealing bladder made of thermosetting polymer for a tank containing a pressurized fluid, such as a composite tank, and a tank
FR2902364A1 (en) * 2006-06-16 2007-12-21 Commissariat Energie Atomique METHOD FOR MANUFACTURING A THERMOSETTING POLYMER SEALANT FOR A RESERVOIR CONTAINING A PRESSURIZED FLUID, SUCH AS A COMPOSITE TANK, AND TANK

Similar Documents

Publication Publication Date Title
KR970027135A (en) Polyurethane molded articles made from recycled polyols and methods and uses for their preparation
GB1328007A (en) Polyurethane foam composites
NL7304815A (en) Shaped plastic article - by injecting curable liquid into preheated, rotating mould
CA968646A (en) Process for improving the adhesion strength of cellulose-containing surface layers on phenol resin foam plastic material
GB1329094A (en) Moulding articles of expandable thermoplastics material with a reinforcement
CH542289A (en) Plastic with vapor-deposited SiOx surface layers and process for its production
ES375022A1 (en) Improvements in or relating to the production of laminar articles
FR2168211A1 (en) Reinforced thermoplastic resin pot - contg strands of long glass fibres and short glass fibres
FR2294826A1 (en) Rigid lightweight polyurethane foam panels - and mouldings with foamed polystyrene particles as filler
FR2046347A5 (en) One shot mouldings incorporating sheet - reinforcement or decoration
JPS56157329A (en) Production of composite formed article
GB1443732A (en) Method of producing an article of fibre-reinforced polyurethane foam
GB1307876A (en) Apparatus for making foamed article and method of use
GB1322949A (en) Process for producing cellular moulded bodies
GB1335316A (en) Process and apparatus for producing homogeneous material or foam at least two interreacting components
DE2157921A1 (en) Polyurethane foam moulded parts - reinforced with glass fibre produced by spraying into simple pressureless negative moulds
FR2196886A1 (en) Reinforced folded-construction laminated boxes - eg used for radios record players, loudspeaker cabinets
FR2153413A1 (en) Encapsulated multi-component articles prodn - - composite components - held in mould in relative positions to be en
US1251182A (en) Process of ornamenting rubber articles.
FR2073331A1 (en) One shot mouldings incorporating sheet - reinforcement or decoration
FR2061724A1 (en) Foam plastic composite
NL7110928A (en) Walled units - by spraying temporarily joined walls with foamed plastic core and unfoamed skin
CA891578A (en) Process and apparatus for the production of foam plastics materials in particular polyurethane foams
JPS6490714A (en) Reaction injection molding of fiber-reinforced polyurethane
GB1479893A (en) Process for the production of articles of a cellular plastics material provided with a covering of another material

Legal Events

Date Code Title Description
BV The patent application has lapsed