公开(公告)号：US20210115203A1

公开(公告)日：2021-04-22

申请号：US16500199

申请日：2018-03-19

申请人： DSM IP ASSETS B.V.

发明人： Brad Alan DICKINSON ,  Harm VAN DER WERFF ,  Raul Marcelino PEREZ GRATEROL ,  Petrus Henricus Maria ELEMANS ,  Leonardus Gerardus Bernardus BREMER ,  Francois Antoine Maria OP DEN BUIJSCH ,  Roelof MARISSEN

IPC分类号： C08J5/04 ,  C08J5/18 ,  F41H5/04 ,  B32B5/12 ,  B32B27/30

摘要： The invention relates to a composite sheet, and a ballistic resistant article, comprising unidirectionally aligned high performance polyethylene (HPPE) fibers and a polymeric resin, wherein said polymeric resin comprises a homopolymer or copolymer of ethylene and wherein said polymeric resin has a density as measured according to ISO1183 of between 930 and 980 kg/m3, and a peak melting temperature of from 115 to 140° C.; and said polymeric resin is present in an amount of from 5 to 25% by weight based on the total weight of the composite sheet. It further relates to a method for manufacturing a composite sheet comprising assembling HPPE fibers to a sheet, applying an aqueous suspension of a polymeric resin to the HPPE fibers, partially drying the aqueous suspension, optionally applying a temperature and/or a pressure treatment to the composite sheet.

公开(公告)号：US20240255261A1

公开(公告)日：2024-08-01

申请号：US18565784

申请日：2022-06-03

申请人： DSM IP ASSETS. B.V.

发明人： Johann VAN ELBURG ,  Harm VAN DER WERFF ,  Reinard Jozef Maria STEEMAN ,  Brad Alan DICKINSON ,  Ulrich HEISSERER

IPC分类号： F41H5/04 ,  B32B5/26

CPC分类号： F41H5/0485 ,  B32B5/26 ,  B32B2250/20 ,  B32B2262/0253 ,  B32B2307/516 ,  B32B2307/72 ,  B32B2571/02

摘要： The invention concerns a ballistic-resistant molded article having an areal density of at least 7.0 and at most 12.0 kg/m2, comprising a consolidated stack of fibrous monolayers, each fibrous monolayer containing unidirectionally aligned high tenacity polyethylene filaments, the polyethylene filaments having a tenacity of at least 3.5 N/tex, wherein the molded article comprises between 5.0 and 20 wt % of a binder, wherein the molded article comprises at least 330 of said fibrous monolayers. The invention also relates to a ballistic-resistant sheet suitable to manufacture the molded article, wherein said ballistic-resistant sheet has an areal density of between 6 and 30 g/m2 per polyethylene filament monolayer present in the ballistic-resistant sheet. The invention further relates to a ballistic-resistant molded article whit improved performance when shot under an angle of 30 degree.