ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRIS..MTNORSMESMMAKHTNMD..........JBDM Ver 0.1.63 (23 May 2017) - 1620000/03398718EUROPEAN PATENT APPLICATIONA320190109EP18166588.620180410itenen20170003949520170410IT2019010920190220181107201845B24D 11/00 20060101AFI20181206BHEP B24D 3/00 20060101ALI20181206BHEP B24D 3/22 20060101ALI20181206BHEP B24D 9/00 20060101ALI20181206BHEP B24D 11/02 20060101ALI20181206BHEP B24D 15/04 20060101ALN20181206BHEP deVERFAHREN ZUR HERSTELLUNG EINES FLEXIBLEN ABRASIVEN ARTIKELS, DAS ERZEUGTE ARTIKEL UND EINE FÜR EIN SOLCHES VERFAHREN GEEIGNETE WÄSSRIGE SUSPENSIONenPROCESS FOR PRODUCING A FLEXIBLE ABRASIVE ARTICLE, THE ARTICLE THUS OBTAINED AND AN AQUEOUS SOLUTION SUITABLE FOR SUCH A PROCESSfrPROCÉDÉ DE FABRICATION D'UN ARTICLE ABRASIF FLEXIBLE, ARTICLE AINSI OBTENU ET SOLUTION AQUEUSE APPROPRIÉE POUR CE PROCÉDÉ3ABiffignandi S.P.A.10173531339664Via Circonvallazione Est, 2/627023 Cassolnovo (PV)ITColombi, ClaudioBiffignandi S.P.A. Via Circonvallazione Est, 2/627023 Cassolnovo (PV)ITRanieri, CarloBiffignandi S.P.A. Via Circonvallazione Est, 2/627023 Cassolnovo (PV)ITFisauli, Beatrice A. M.100731363Con Lor S.p.A Via Bronzino, 820133 MilanoITALATBEBGCHCYCZDEDKEEESFIFRGBGRHRHUIEISITLILTLULVMCMKMTNLNOPLPTRORSSESISKSMTRBAMEKHMAMDTN20190109201902

The present invention relates to a process for producing a flexible abrasive article (40), in sheet or film form, wherein an acqueous suspension SA is layen on a film FB of elastomeric or thermoplastic polymer, the acqueous suspension SA containing elastomeric or thermoplastic polymers PSA of same chemical composition as the film FB.

39664EP18166588.6Biffignandi S.P.A.

1. claims: 1-12
A process for producing a flexible abrasive article in sheet or film form, by layering  an aqueous suspension comprising polymers and abrasive particles on a film, wherein additional steps a) and c) are defined and characterized in that the film is formed with polymers that have the same chemical composition as the polymers present in the aqueous suspension. (Claim 1)Problem to be solved:   how to provide a durable abrasive article with a simplified manufacturing process.

2. claims: 13, 14
An aqueous suspension comprising polymers and abrasive particles, characterized in that the chemical composition of the components is defined by (parts by weight):- from 30 to 80 parts of water,- from 2 to 20 parts of polymers,- from 10 to 30 parts of abrasive particles,- from 4 to 15 parts of both rheological additives and suspending agent, and- 3 to 20 parts of a functionalized additive selected from paraffin hydrocarbons and saturated fatty acids and their derivatives. (claim 13)Problem to be solved:   how to produce a stable polymeric suspension containing abrasive granulate.

1-123AMN20181212B24DB29CWO2010053729A1GUISELIN OLIVIER L [US]20100514X11,12A1-10* abstract; figure 4 ** page 11, lines 9-14 ** claim 36 ** page 10, lines 13-15 ** page 13, lines 25-29 ** page 21, lines 25-26 ** page 27, lines 10,11 *WO2016106212A1SAINT GOBAIN ABRASIVES INC [US]; SAINT GOBAIN ABRASIFS SA [FR]20160630X11,12A1-10* abstract; figures 1-2 ** page 4, line 18 - line 32 ** page 23, line 20 - page 25, line 35 *EP0793560A1MINNESOTA MINING & MFG [US]19970910X11,12A1-10* abstract; figures 1-3 ** paragraphs [0003], [0046] - [0054]; figure 2 *US5672185ARYOKE KATSUMI [JP]19970930X11,12A1-10* abstract; figure 1 *EP0438671A2SOMAR CORP [JP]19910731X11A1-10* page 2, lines 50-54 ** page 3, lines 1-6 *US2012150137A1WANG JAMES H [US] ET AL20120614X11* abstract; figure 1 ** paragraphs [0054], [0053], [0018] *EP0771613B1KOVAX CORP [JP]20000405A,D1-10* abstract; figures 1-4 *Arhire, IrinaMunich20180824WO2010053729A120100514NONEWO2016106212A120160630US2016193716A120160707WO2016106212A120160630EP0793560A119970910BR9509737A19971021CA2203530A119960530DE69513687D120000105DE69513687T220000525EP0793560A119970910JPH10509657A19980922US5578095A19961126WO9615876A119960530US5672185A19970930JPH08294872A19961112US5672185A19970930EP0438671A219910731DE69027759D119960814DE69027759T219961205EP0438671A219910731JPH0641110B219940601JPH03221375A19910930US5236762A19930817US2012150137A120120614AU2011340218A120130530BR112013014228A220160913CN103261288A20130821CO6761301A220130930EP2649117A220131016KR20130126925A20131121RU2013129301A20150120US2012150137A120120614WO2012077003A220120614EP0771613B120000405AU685030B219980108CN1154286A19970716DE69607560D120000511DE69607560T220001019EP0771613A119970507JP2808261B219981008JPH09123065A19970513KR100235572B120000401TW310293B19970711US5928760A19990727US6183677B120010206