Title (en)

USE OF FIBROUS MAT-FACED GYPSUM BOARD IN SHAFT WALL ASSEMBLIES AND IMPROVED FIRE-RESISTANT BOARD

Publication

EP 0216497 A3 19871202 (EN)

Application

EP 86306391 A 19860819

Priority

US 76958385 A 19850826

Abstract (en)

[origin: EP0216497A2] Shaft wall assemblies (100) comprise fire-resistant framework (101, 103) and gypsum board (110) which is faced with fibrous mat supported by the framework. The gypsum board (110) has a core containing mineral fibres in an amount sufficient to improve the fire-resistant properties of the board.

IPC 1-7

E04C 2/04; E04B 1/34

IPC 8 full level

B32B 17/02 (2006.01); B28B 11/04 (2006.01); B32B 5/08 (2006.01); B32B 13/14 (2006.01); E04B 1/94 (2006.01); E04C 2/04 (2006.01); E04C 2/26 (2006.01); E04F 17/00 (2006.01); E04F 17/08 (2006.01)

CPC (source: EP)

B28B 11/04 (2013.01); E04C 2/043 (2013.01); E04F 17/005 (2013.01)

Citation (search report)

• [YD] US 4047355 A 19770913 - KNORR WILLIAM L
• [YD] US 3993822 A 19761123 - KNAUF ALFONS, et al
• [YD] US 3616173 A 19711026 - GREEN GEORGE W, et al
• [AD] US 3935021 A 19760127 - GREVE DALE R, et al

Designated contracting state (EPC)

AT CH DE FR GB LI

DOCDB simple family (publication)

EP 0216497 A2 19870401; EP 0216497 A3 19871202; CA 1309828 C 19921110; JP 2523523 B2 19960814; JP S6290460 A 19870424; MX 171714 B 19931111

DOCDB simple family (application)

EP 86306391 A 19860819; CA 516602 A 19860822; JP 19746086 A 19860825; MX 354786 A 19860826