Global Patent Index - EP 1071551 A2

EP 1071551 A2 2001-01-31 - MOULDING METHOD USING A PREPREG

Title (en)

MOULDING METHOD USING A PREPREG

Title (de)

GIESSVERFAHREN MIT VERWENDUNG VON PREPREGS

Title (fr)

PROCEDE DE MOULAGE METTANT EN OEUVRE UN PREIMPREGNE

Publication

EP 1071551 A2 (EN)

Application

EP 99914660 A

Priority

  • GB 9901035 W
  • GB 9807449 A

Abstract (en)

[origin: WO9952695A1] A method of moulding an article from prepreg including laying a sheet of prepreg on a mould to conform with the mould includes also treating the resin of the prepreg to increase its viscosity to a predetermined value which, when the sheet is cured by the simultaneous application of pressure and heat results in a reduction in voids within the laminate and pits on the moulded surface as compared with a conventional prepreg moulding technique, curing the resin and removing the cured or partially cured article from the mould. The treatment of the resin may be achieved by applying heat to the resin of the prepreg amending its formulation or any other appropriate method.

IPC 1-7 (main, further and additional classification)

B29B 15/08; B29B 11/16; B29B 13/02; B29C 35/02; B29C 35/08; B29C 67/24; C08J 3/24; C08K 9/10

IPC 8 full level (invention and additional information)

B29B 15/08 (2006.01); B29B 11/16 (2006.01); B29B 13/02 (2006.01); B29C 43/02 (2006.01); B29C 43/52 (2006.01); B29C 70/06 (2006.01); B29C 70/34 (2006.01); C08J 5/24 (2006.01); C08K 9/10 (2006.01)

CPC (invention and additional information)

B29C 70/34 (2013.01); C08J 5/24 (2013.01)

Citation (search report)

See references of WO 9952695A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9952695 A1 19991021; WO 9952695 A8 19991202; AU 3339099 A 19991101; EP 1071551 A2 20010131; GB 9807449 D0 19980610; JP 2002511349 A 20020416

INPADOC legal status


2001-12-12 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010606

2001-03-14 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010126

2001-01-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001009

2001-01-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE