公开(公告)号：US20170096000A1

公开(公告)日：2017-04-06

申请号：US15311651

申请日：2015-03-25

Applicant: BASF SE

Inventor： JENS AßMANN ,  Claus FUEGER

IPC: B32B37/14 ,  B32B5/30 ,  B32B37/06 ,  B32B27/32 ,  B32B37/10 ,  B32B21/08 ,  B32B23/08

CPC classification number: B32B37/14 ,  B32B5/30 ,  B32B21/08 ,  B32B23/08 ,  B32B27/32 ,  B32B37/06 ,  B32B37/10 ,  B32B2307/7242 ,  B32B2307/7246 ,  B32B2471/00 ,  B32B2479/00

Abstract: The present invention relates to a multilayered lignocellulosic engineering material wherein at least one layer is a vapor barrier layer and at least one vapor barrier layer is below the surface of the lignocellulosic engineering material, and the lignocellulosic layers comprise A) 30 to 98 wt % of one or more lignocellulosic substances, B) 0 to 25 wt % of expanded plastics particles having a bulk density in the range from 10 to 150 kg/m3, C) 1 to 50 wt % of a binder selected from the group consisting of amino resin, phenol-formaldehyde resin, organic isocyanate having at least two isocyanate groups, or mixtures thereof, optionally with a curing agent, and D) 0 to 68 wt % of additives, wherein the vapor barrier comprises from 0.01 to 100 wt % of polyisobutylene, from 0 to 99.99 wt % of further polymers and from 0 to 20 wt % of additives, and also to processes for production thereof and the use thereof.