公开(公告)号：US20250067045A1

公开(公告)日：2025-02-27

申请号：US18720743

申请日：2022-12-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Raj CN Thiagarajan ,  Christianus Johannes Jacobus Maas ,  Eric Gervais ,  Peter van den Bleek

IPC: E04B1/84

Abstract: A multiwall sheet, comprising: walls extending along a z-axis and extending along an x-axis, wherein the x-axis is orthogonal to the z-axis, wherein the walls comprise plastic, and wherein the walls comprise an upper wall (2), and a lower wall (4), wherein the lower wall (4) is spaced apart from the upper wall (2) along a y-axis, and wherein the y-axis is orthogonal to the z-axis and the x-axis; ribs extending along the z-axis and extending along the y-axis between the upper wall (2) and the lower wall (4), wherein the ribs comprise plastic, and wherein the ribs comprise a first rib (6), and a second rib (8), wherein the second rib (8) is spaced apart from the first rib (6) along the x-axis, and wherein the upper wall (2), the lower wall (4), the first rib (6), and the second rib (8) define a cavity (10) having a width Xcavity and a height Ycavity; and an acoustic resonator (100) in the cavity (10), wherein the acoustic resonator (100) extends along the z-axis, comprises plastic, and comprises a first portion (110) extending in a negative y-axis direction from the upper wall (2) into the cavity (10), a second portion (120) extending in a positive x-axis direction from the first portion (110), and a third portion (130) extending in a positive y-axis direction from the second portion (120).

公开(公告)号：US20180355613A1

公开(公告)日：2018-12-13

申请号：US16062197

申请日：2016-12-15

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： C. Thiagarajan ,  Frans Adriaansen ,  Przemyslaw Olszynski ,  Bernardus Johannes Paulus Jansen ,  Johann Wagner ,  Peter van den Bleek

IPC: E04C2/34 ,  E04C2/22 ,  E04C2/54

CPC classification number: E04C2/3405 ,  E04C2/22 ,  E04C2/543 ,  E04C2002/3488

Abstract: A multiwall sheet (30) comprising a first wall (2); a second wall (4); a plurality of ribs (8) extended between the first and second walls (2, 4); and a plurality of mid-ribs (6), wherein one mid-rib (6) extends between each two adjacent ribs (8), wherein the mid-ribs (6) extend at a mid-rib angle (18) relative to an adjoining rib (8), and wherein the mid-rib angle (18) is not 90° relative to a rib (8) to which it attaches, wherein the mid-ribs (6) attach only to adjacent ribs (8), and wherein the mid-ribs (6) do not attach to either the first or second walls (2, 4).