Abstract
The invention pertains to a ballistic-resistant moulded article comprising a compressed stack of sheets comprising reinforcing tapes having a tensile strength of at least 1.0 GPa, a tensile modulus of at least 40 GPa, and a tensile energy-to-break of at least 15 J/g, the direction of the tapes within the compressed stack being not unidirectional, wherein the stack comprises a first layer comprising sheets comprising reinforcing tapes and a high-density polyethylene (HDPE) as matrix material and a fur- ther layer comprising sheets comprising reinforcing tapes and a thermoplastic elastomer as matrix material, wherein the further layer comprises 0.2-8 wt.% matrix material. It has been found that the combination of a layer comprising HDPE as matrix with a layer comprising a thermoplastic elastomer as matrix results in an article which combines high impact re- sistance with improved constructional integrity of the article and reduced dynamic and static back face deformation upon im- pact.
| Original language | English |
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| Patent number | WO2015118043 |
| IPC | F41H 5/ 04 A I |
| Priority date | 10/02/14 |
| Publication status | Published - 13 Aug 2015 |