EP 1621719 A1 20060201 - Radiation shielding door elements comprising polyurethan foam
Title (en)
Radiation shielding door elements comprising polyurethan foam
Title (de)
Strahlenschutztürelemente mit Polyurethanschaumstoffen
Title (fr)
Eléments de porte de protection contre les rayonnements comprenant de la mousse de polyuréthane
Publication
Application
Priority
DE 102004036756 A 20040729
Abstract (en)
In door elements comprising a rigid polyurethane foam (I) between covering layers, (I) is obtained from aromatic polyisocyanates, a polyol component and a radiation-protecting additive (II) comprising (a) gadolinium, (b) barium, indium, tin, molybdenum, niobium, tantalum, zirconium or tungsten and optionally (c) bismuth or rare earth metals other than gadolinium. In door elements comprising a rigid polyurethane foam (I) between covering layers, where (I) is obtained by reacting aromatic polyisocyanates with a polyol component (having on average at least two isocyanate-reactive groups and containing polyether and/or polyester polyols), a radiation-protecting additive (II), blowing agents and optionally catalysts, auxiliaries and/or additives, (II) comprises (by weight) (a) at least 26% gadolinium, (b) 10-74% barium, indium, tin, molybdenum, niobium, tantalum, zirconium or tungsten and (c) 0-64% bismuth, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, terbium, dysprosium, holmium, erbium, thulium, ytterbium or lutetium. Independent claims are included for the preparation of the door elements.
IPC 8 full level
E06B 5/18 (2006.01)
CPC (source: EP US)
E06B 5/18 (2013.01 - EP US); Y10T 428/249986 (2015.04 - EP US); Y10T 428/249988 (2015.04 - EP US)
Citation (search report)
- [Y] DE 1139967 B 19621122 - COMPRIFALT IBS BAUSPEZIALITAET
- [Y] DE 10340124 A1 20040701 - BAYER AG [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1621719 A1 20060201; CA 2513189 A1 20060129; DE 102004036756 A1 20060323; JP 2006037713 A 20060209; US 2006062992 A1 20060323
DOCDB simple family (application)
EP 05015510 A 20050718; CA 2513189 A 20050725; DE 102004036756 A 20040729; JP 2005217501 A 20050727; US 18868605 A 20050725