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(11)

EP 3 387 512 A1

(12)

(43) Date of publication: 17.10.2018 Bulletin 2018/42 (21) Application number: 16872572.9 (22) Date of filing: 08.12.2016

(51) International Patent Classification (IPC):  G06F 3/00(2006.01) B26D 7/00(2006.01) E06B 9/00(2006.01) G06F 1/16(2006.01) (86) International application number: PCT/IN2016/050438 (87) International publication number: WO 2017/098531 (15.06.2017 Gazette 2017/24)

(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 MD (30) Priority: 10.12.2015 IN 6628CH2015 (71) Applicant: Saint-Gobain Reseach India (SGRI) Pvt. Ltd. Tharamani, Chennai 600 113 (IN)	(72) Inventors: TADEPALLI, Rajappa Chennai Tamilnadu 600041 (IN) S A, Rathish Neyveli Tamil Nadu 607803 (IN) BALAIAH, Kuppan Arakkonam Tamil Nadu 632510 (IN) (74) Representative: Saint-Gobain Recherche  Département Propriété Industrielle 39 Quai Lucien Lefranc 93300 Aubervilliers 93300 Aubervilliers (FR)