(19)

(11)

EP 3 194 344 A1

(12)

(43) Date of publication: 26.07.2017 Bulletin 2017/30 (21) Application number: 15762635.9 (22) Date of filing: 14.09.2015

(51) International Patent Classification (IPC):  C03B 19/08(2006.01) C03C 11/00(2006.01) (86) International application number: PCT/EP2015/070948 (87) International publication number: WO 2016/041899 (24.03.2016 Gazette 2016/12)

(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: MA (30) Priority: 15.09.2014 US 201462050219 P 27.01.2015 US 201562108087 P (71) Applicant: PCFG AS 3128 Nøtterøy (NO)	(72) Inventors: SOLVANG, Finn, Erik N-3142 Tønsberg (NO) SVEINSBØ, Gunnar N-5179 Godvik (NO) (74) Representative: Onsagers AS  P.O. Box 1813 Vika 0123 Oslo 0123 Oslo (NO)