公开(公告)号：EP3698953A1

公开(公告)日：2020-08-26

申请号：EP20158438.0

申请日：2020-02-20

Applicant: SP Advanced Engineering Materials PVT. Ltd.

Inventor： Mukherji, Arindam

IPC: B29C70/52 ,  B29C70/20 ,  B29C70/22 ,  B29D99/00 ,  B32B3/04 ,  B32B3/12 ,  B32B5/02 ,  B32B5/26 ,  B29L31/60

Abstract: A honeycomb closed cellular composite product (100) consisting essentially of multiple layers of a synthetic polyester felt impregnated with a resin system and / or multiple layers of a bi-directionally and/or a uni-directionally oriented synthetic glass fabric impregnated with a resin system, to form a core (101) and an encapsulating layer (102); wherein the core comprises non-spaced-apart closed cellular polygonal columnar units stacked alongside one another, preferably with its operative height equal to the operative height of the core, and preferably stacked alongside one another to fill the void of the core; the product preferably having at least 50 % void vol./vol. and having robust impact resistance yet being low cost and light weight product.