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EP 2 488 463 A1

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(43) Date of publication: 22.08.2012 Bulletin 2012/34 (21) Application number: 10776397.1 (22) Date of filing: 15.10.2010

(51) International Patent Classification (IPC):  C04B 9/02(2006.01) C04B 28/22(2006.01) C04B 28/04(2006.01) C04B 28/02(2006.01) C04B 28/32(2006.01) (86) International application number: PCT/GB2010/001917 (87) International publication number: WO 2011/045574 (21.04.2011 Gazette 2011/16)

(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 (30) Priority: 15.10.2009 GB 0918061 05.11.2009 GB 0919406 19.02.2010 GB 201002873 13.04.2010 GB 201006127 13.04.2010 GB 201006119 14.05.2010 GB 201008025 17.05.2010 GB 201008191 28.06.2010 GB 201010853 08.07.2010 GB 201011530 15.09.2010 GB 201015418 (71) Applicants: Berry, Michael Trevor West Cheshunt, Hertfordshire EN7 6AZ (GB) Scanlon, Janet Susan West Cheshunt, Hertfordshire EN7 6AZ (GB)

(72) Inventors: Berry, Michael Trevor West Cheshunt, Hertfordshire EN7 6AZ (GB) Scanlon, Janet Susan West Cheshunt, Hertfordshire EN7 6AZ (GB) (74) Representative: Probert, Gareth David  Potter Clarkson LLP Park View House 58 The Ropewalk Nottingham NG1 5DD Nottingham NG1 5DD (GB)