Title (en)

REINFORCED THERMOPLASTIC HONEYCOMB STRUCTURE

Publication

EP 0412118 A4 19910925 (EN)

Application

EP 89905897 A 19890428

Priority

US 18837788 A 19880429

Abstract (en)

[origin: WO8910258A1] A method of manufacturing thermoplastic structures wherein the structure comprises a fiber-reinforced thermoplastic resin. The fiber reinforcement may be in the form of a woven (8) or non-woven web (7). The thermoplastic resin may be introduced therein in the form of staple fibers blended into the woven web (7b, 11) or by melt-coating (31, 33) the web (23b) or by laminating a preformed thermoplastic resin film (35, 35') to the web (23c). The latter technique allows uniform distribution of a radar-absorbing material, coated on or blended into the preformed thermoplastic film (35, 35') throughout the honeycomb.

IPC 1-7

B32B 3/12; B32B 31/12

IPC 8 full level

B29C 53/24 (2006.01); B29C 65/02 (2006.01); B29C 70/06 (2006.01); B29C 70/08 (2006.01); B29C 70/50 (2006.01); B29C 70/88 (2006.01); B29D 99/00 (2010.01); B32B 3/12 (2006.01); B32B 37/00 (2006.01); B32B 37/14 (2006.01); B32B 37/16 (2006.01); D04H 1/58 (2006.01); B29C 35/08 (2006.01); B29K 105/08 (2006.01)

CPC (source: EP US)

B29C 53/24 (2013.01 - EP); B29C 70/081 (2013.01 - EP); B29C 70/506 (2013.01 - EP); B29C 70/88 (2013.01 - EP); B29D 99/0089 (2013.01 - EP); B32B 3/12 (2013.01 - EP US); B32B 5/06 (2013.01 - US); B32B 5/26 (2013.01 - US); B32B 7/12 (2013.01 - US); B32B 37/146 (2013.01 - EP US); B29C 2035/0855 (2013.01 - EP); B29K 2105/06 (2013.01 - EP); B29K 2105/0845 (2013.01 - EP); B29K 2105/0854 (2013.01 - EP); B29K 2105/101 (2013.01 - EP); B32B 2262/101 (2013.01 - US); B32B 2305/024 (2013.01 - US)

Citation (search report)

• [X] US 3673058 A 19720627 - JACKSON WENDELL T, et al
• [Y] US 3134705 A 19640526 - MOELLER DELMER H
• [Y] US 3379594 A 19680423 - BRUDER WALLACE J
• [Y] US 3227592 A 19660104 - COATES HERBERT W, et al
• See references of WO 8910258A1

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

WO 8910258 A1 19891102; CA 1333559 C 19941220; EP 0412118 A1 19910213; EP 0412118 A4 19910925; JP H03503868 A 19910829

DOCDB simple family (application)

US 8901783 W 19890428; CA 598200 A 19890428; EP 89905897 A 19890428; JP 50591289 A 19890428