Sealing material for automobile door

Abstract

A sealing material for an automobile door used for adhering an inside screen to the inner panel of the automobile door and having excellent hot creep characteristics and shear adhesion strength in a hot state, particularly, to prepare for its application in summer season. The sealing material is formed of a partially crosslinked type NBR and / or SBR, a plasticizer, and a filler.

Description

technical field [0001] The present invention relates to a sealing material for an automobile door, in particular to a rubber component for bonding an inner screen (Japanese: インサイドスリーン) to an inner panel of an automobile door by using a partially cross-linked specific synthetic rubber And it is a sealing material with excellent thermal creep performance and shear bond strength in hot state especially suitable for summer. Background technique [0002] The main purpose of this kind of sealing material for automobile doors is to be used for waterproofing. Pasty butyl rubber-like sealing materials, but when used in summer, the strength at high temperatures (such as 80°C), such as thermal creep properties and shear bond strength in hot states are poor, and many times the inner insulation The screen (typically polyethylene and polyvinyl chloride film) peels and shifts, thereby hindering the main purpose of waterproofing. [0003] On the other hand, as a solvent-free, high-viscosi...

AI Technical Summary

Problems solved by technology

[0002] The main purpose of this kind of sealing material for automobile doors is to be used for waterproofing. Pasty butyl rubber-like sealing materials, but when used in summer, the strength at high temperatures (such as 80°C), such as thermal creep properties and shear bond strength in hot states are poor, and many times the inner insulation The screen (typically polyethylene and polyvinyl chloride film) peels and shifts, which hinders the main purpose of waterproofing