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1. WO1991000171 - ZONE STIFFENED COMPOSITES, WITH TWO DIFFERENT RESINS

Publication Number WO/1991/000171
Publication Date 10.01.1991
International Application No. PCT/GB1990/001014
International Filing Date 02.07.1990
Chapter 2 Demand Filed 20.12.1990
IPC
B29C 45/14 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
14incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29C 44/04 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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming
02for articles of definite length, i.e. discrete articles
04consisting of at least two parts of chemically or physically different materials, e.g. having different densities
B29C 45/16 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
16Making multilayered or multicoloured articles
B29C 70/08 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
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
06Fibrous reinforcements only
08comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
B29C 70/48 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
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
40Shaping or impregnating by compression
42for producing articles of definite length, i.e. discrete articles
46using matched moulds, e.g. for deforming sheet moulding compounds or prepregs
48and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding
B29C 70/86 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
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
68by incorporating or moulding on preformed parts, e.g. inserts or layers
86Incorporating in coherent impregnated reinforcing layers
CPC
B29C 44/0469
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming ; ; Producing porous or cellular expanded plastics articles
02for articles of definite length, i.e. discrete articles
04consisting of at least two parts of chemically or physically different materials, e.g. having different densities
0461by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
0469provided with physical separators between the different materials, e.g. separating layers, mould walls
B29C 70/08
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
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
06Fibrous reinforcements only
08comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
B29C 70/086
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
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
06Fibrous reinforcements only
08comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
086and with one or more layers of pure plastics material, e.g. foam layers
B29C 70/48
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
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
40Shaping or impregnating by compression
42for producing articles of definite length, i.e. discrete articles
46using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
48and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM] ; , e.g. by vacuum
B29C 70/865
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
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
68by incorporating or moulding on preformed parts, e.g. inserts or layers ; , e.g. foam blocks
86Incorporated in coherent impregnated reinforcing layers, ; e.g. by winding
865completely encapsulated
B29D 99/001
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
99Subject matter not provided for in other groups of this subclass
001Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
Applicants
  • 3-D COMPOSITES LIMITED [GB/GB]; Brackenthwaite House Black Beck Wood Storrs Park Bowness Cumbria LA23 3LS, GB (AllExceptUS)
  • NEWTON, John [GB/GB]; GB (UsOnly)
Inventors
  • NEWTON, John; GB
Agents
  • WHARTON, P., R.; Urquhart-Dykes & Lord Alliance House 29/31 Kirkgate Bradford BD1 1QB, GB
Priority Data
8915369.604.07.1989GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ZONE STIFFENED COMPOSITES, WITH TWO DIFFERENT RESINS
(FR) COMPOSITES RIGIDIFIES PAR ZONES, AVEC DEUX RESINES DIFFERENTES
Abstract
(EN)
A method of moulding a composite article which comprises providing a mould adapted to receive a first matrix component for moulding the article, inserting a membrane (3) in the mould so as to define at least two contiguous volumes (1, 2) separated thereby, injecting a first component system on one side of the said membrane and injecting a second matrix system on the other side of the membrane and curing the system. Preferably the membrane is arranged to allow the two matrix systems to partially diffuse into one another before curing to give a bond between the two.
(FR)
Le procédé décrit, qui sert au moulage d'un article composite, consiste à prévoir un moule destiné à recevoir un premier composant matriciel pour le moulage de l'article, à introduire dans le moule une membrane (3) destinée à définir au moins deux volumes contigus (1, 2) séparés par elle, à injecter un premier système de composants d'un côté de la membrane et à injecter un second système matriciel de l'autre côté de la membrane, puis à vulcaniser le système. La membrane est de préférence agencée de façon à permettre aux deux systèmes matriciels de diffuser partiellement l'un dans l'autre, avant la vulcanisation, pour créer une liaison entre eux.
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