Title:
METHOD FOR PREPARING A POLYURETHANE COMPOSITE BY VACUUM INFUSION PROCESS
Document Type and Number:
WIPO Patent Application WO/2020/126744
Kind Code:
A3
Abstract:
The invention relates to a method for preparing a polyurethane composite by vacuum infusion process, the composite prepared by the method and use thereof. The method according to the present invention preferably comprises the use of a polyester peel ply having a specific gram weight, a reinforced material and/or a porous medium, and the like. The polyurethane composite produced by the method according to the present invention has both good physical properties and a satisfactory outer surface without the need to separately treat the outer surface.
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| WO/2009/097853 | VACUUM BAGGING OF COMPOSITE MATERIALS |
| WO/1997/023258 | GOLF CLUB HAVING A FLEX ZONE |
| WO/2022/155582 | SYSTEM AND METHOD FOR PROMOTING INTER-PLY SLIPPAGE |
Inventors:
HAN XIAOJUN (CN)
ZHANG HUI (CN)
CHENG HAO (CN)
GU YONGMING (CN)
WU DI (CN)
ZHENG IAN (CN)
ZHANG HUI (CN)
CHENG HAO (CN)
GU YONGMING (CN)
WU DI (CN)
ZHENG IAN (CN)
Application Number:
PCT/EP2019/084662
Publication Date:
July 30, 2020
Filing Date:
December 11, 2019
Export Citation:
Assignee:
COVESTRO INTELLECTUAL PROPERTY GMBH & CO KG (DE)
International Classes:
B29C70/44; B29C37/00; B29C70/54
Domestic Patent References:
| WO2016162348A1 | 2016-10-13 |
Foreign References:
| DE102011013742A1 | 2012-09-13 | |||
| DE102004025704A1 | 2005-12-15 |
Attorney, Agent or Firm:
LEVPAT (DE)
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