EP 1287069 A4 20040929 - SOUND DEADENING AND STRUCTURAL REINFORCEMENT COMPOSITIONS AND METHODS OF USING THE SAME

Title (en)

SOUND DEADENING AND STRUCTURAL REINFORCEMENT COMPOSITIONS AND METHODS OF USING THE SAME

Title (de)

SCHALLDÄMMENDE UND STRUKTURELLE VERSTÄRKUNGSZUSAMMENSETZUNGEN SOWIE VERFAHREN ZU DEREN VERWENDUNG

Title (fr)

COMPOSITIONS D'ATTENUATION SONORE ET DE RENFORT STRUCTUREL ET PROCEDES D'UTILISATION DE CES COMPOSITIONS

Publication

EP 1287069 A4 20040929 (EN)

Application

EP 01933339 A 20010515

Priority

US 0115548 W 20010515
US 57275400 A 20000516

Abstract (en)

[origin: WO0188033A1] Expandable sealant and baffle compositions and methods of forming and using such compositions are provided wherein the compositions comprise a first thermoplastic resin, an epoxy resin, preferably a second thermoplastic resin different from the first thermoplastic resin, and optionally a compound selected from the group consisting of pigments, blowing agents, catalysts, curing agents, reinforcers, and mixtures thereof. The resulting compositions are formed as self-sustaining bodies which can be heat-expanded into a lightweight, high strength product for sealing hollow structural members of vehicles, substantially decreasing the noise which travels along the length of those members as well as strengthening those members with minimal increases in their weights. In a preferred embodiments, the first thermoplastic resin is an SBS block co-polymer, the epoxy resin is a bisphenol A-based liquid epoxy resin, the second thermoplastic resin is a polystyrene, and the reinforcer is hydrated amorphous silica. The compositions can be formed into free-standing, self-sustaining parts or into U-sharped members supported on lattice-type nylon supports.

IPC 1-7

C08L 53/00; C08L 63/00

IPC 8 full level

C08J 9/10 (2006.01); C08G 59/46 (2006.01); C08J 9/00 (2006.01); C08J 9/32 (2006.01); C08K 3/04 (2006.01); C08K 3/22 (2006.01); C08K 3/36 (2006.01); C08K 7/14 (2006.01); C08L 53/02 (2006.01); C08L 63/00 (2006.01)

CPC (source: EP)

C08J 9/0061 (2013.01); C08J 9/103 (2013.01); C08J 9/32 (2013.01); C08L 53/02 (2013.01); C08L 63/00 (2013.01); C08J 2353/02 (2013.01); C08J 2463/00 (2013.01)

C-Set (source: EP)

Citation (search report)

[PX] WO 0027920 A1 20000518 - SIKA CORP [US]
[A] EP 0320538 A1 19890621 - SHELL INT RESEARCH [NL]
[A] EP 0500009 A1 19920826 - NIPPON ZEON CO [JP]
[A] DATABASE WPI Section Ch Week 199420, Derwent World Patents Index; Class A21, AN 1994-161552, XP002291118
See references of WO 0188033A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 0188033 A1 20011122; AU 5977201 A 20011126; CA 2409750 A1 20011122; EP 1287069 A1 20030305; EP 1287069 A4 20040929; JP 2004527587 A 20040909; MX PA02011238 A 20030425

DOCDB simple family (application)

US 0115548 W 20010515; AU 5977201 A 20010515; CA 2409750 A 20010515; EP 01933339 A 20010515; JP 2001585246 A 20010515; MX PA02011238 A 20010515