(19)

(11)

EP 2 398 975 A1

(12)

(43) Date of publication: 28.12.2011 Bulletin 2011/52 (21) Application number: 10706029.5 (22) Date of filing: 12.02.2010

(51) International Patent Classification (IPC):  E04C 5/16(2006.01) E01C 11/14(2006.01) E04B 1/68(2006.01) E01C 11/08(2006.01) E04B 1/48(2006.01) E04F 15/14(2006.01) (86) International application number: PCT/GB2010/000259 (87) International publication number: WO 2010/094910 (26.08.2010 Gazette 2010/34)

(84) Designated Contracting States: 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 SE SI SK SM TR (30) Priority: 17.02.2009 GB 0902724 (71) Applicant: Permaban Limited Lee Mill Industrial Estate Ivybridge Devon PL21 9GL (GB)	(72) Inventor: ARNOLD, Rodney, Malcolm Devon TQ13 9NL (GB) (74) Representative: Brooks, Nigel Samuel et al Hill Hampton East Meon Petersfield Hampshire GU32 1QN Petersfield Hampshire GU32 1QN (GB)