(19)

(11)

EP 3 899 160 A1

(12)

(43) Date of publication: 27.10.2021 Bulletin 2021/43 (21) Application number: 18833389.2 (22) Date of filing: 19.12.2018

(51) International Patent Classification (IPC):  E04B 2/74(2006.01) E04C 3/29(2006.01) E04C 3/07(2006.01) (52) Cooperative Patent Classification (CPC): E04B 2/7412; E04C 3/291; E04C 3/07 (86) International application number: PCT/EP2018/000569 (87) International publication number: WO 2020/125916 (25.06.2020 Gazette 2020/26)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicant: Knauf Gips KG 97346 Iphofen (DE)	(72) Inventors: RACHWITZ, Sylvia 64711 Erbach (DE) MYRONOV, Alexander 97346 Iphofen (DE) MAHLHOFF, Alfred 33181 Bad Wünnenberg (DE) (74) Representative: Reiser & Partner Patentanwälte mbB  Weinheimer Straße 102 69469 Weinheim 69469 Weinheim (DE)