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1. (WO1991005652) PROCESS FOR PRODUCING PREFORMABLE CONTINUOUS STRAND MATS AND A THERETHROUGH MADE STRAND MAT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/005652 International Application No.: PCT/US1989/004606
Publication Date: 02.05.1991 International Filing Date: 19.10.1989
IPC:
B29C 35/00 (2006.01) ,B29C 35/02 (2006.01) ,B29C 35/16 (2006.01) ,B29C 70/46 (2006.01) ,C08J 5/04 (2006.01) ,C08J 5/24 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35
Heating, cooling or curing, e.g. crosslinking, vulcanising; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35
Heating, cooling or curing, e.g. crosslinking, vulcanising; Apparatus therefor
02
Heating or curing, e.g. crosslinking, vulcanising
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35
Heating, cooling or curing, e.g. crosslinking, vulcanising; Apparatus therefor
16
Cooling
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70
Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04
comprising reinforcements only, e.g. self-reinforcing plastics
28
Shaping operations therefor
40
Shaping or impregnating by compression
42
for producing articles of definite length, i.e. discrete articles
46
using matched moulds, e.g. for deforming sheet moulding compounds (SMC), prepregs
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5
Manufacture of articles or shaped materials containing macromolecular substances
04
Reinforcing macromolecular compounds with loose or coherent fibrous material
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5
Manufacture of articles or shaped materials containing macromolecular substances
24
Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
Applicants:
OWENS-CORNING FIBERGLAS CORPORATION [US/US]; Fiberglas Tower 26 Toledo, OH 43659, US
Inventors:
DUNBAR, Sydney, Gray; US
Agent:
PACELLA, Patrick, P. ; Fiberglas Tower 26 Toledo, OH 43659, US
Priority Data:
Title (EN) PROCESS FOR PRODUCING PREFORMABLE CONTINUOUS STRAND MATS AND A THERETHROUGH MADE STRAND MAT
(FR) PROCEDE POUR FABRIQUER DES NAPPES DE TORONS CONTINUS PREFORMABLES ET UNE NAPPE DE TORONS REALISEE A L'INTERIEUR DE CELLES-CI
Abstract:
(EN) A process for forming a continuous strand preformable mat is disclosed which consists of applying a binder matrix material which includes a thermosetting polyester binder material and a thermoplastic polyester binder to the continuous strand mat. The mat is heated such that the thermosetting binder material cures and hardens while the thermoplastic binder material softens and flows around strand intersections. The mat is thereafter cooled in order to solidify the thermoplastic polyester material of the binder matrix for additional handling for packaging and for subsequent handling by the customer. The preforms are made by heating the mat to oven 93.3 °C (200 °F), placing in a cold mold, and then closing the mold to form and solidify the mat shape.
(FR) Est présenté un procédé pour former une nappe préformable de torons continus qui consiste en l'application d'un matériau matriciel liant comprenant un matériau liant en polyester thermodurcissable et un liant en polyester thermoplastique, sur le nappe de torons continus. La nappe est chauffée de sorte que le matériau liant thermodurcissable soit traité et se durcisse pendant que le matériau liant thermoplastique se ramollit et coule autour des intersections des torons. La nappe est ensuite refroidie afin de solidifier le matériau polyester thermoplastique de la matrice liante pour une opération supplémentaire d'emballage et de transport par le consommateur. Les préformages sont réalisés en chauffant la nappe dans un four à 93,3 °C (200 °F), en le plaçant dans un moule froid et en refermant ensuite le moule pour former et solidifier la forme de la nappe.
Designated States: AU, BR, FI, JP, KR
European Patent Office (BE, DE, FR, GB, IT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
FI912860EP0448565JPH04502587KR1019920702835AU1989044948