Unlock instant, AI-driven research and patent intelligence for your innovation.

Composition for foam filling, foam filling member, and foam for filling

A technology of foam filling and composition, which is applied in the field of foam filling components and foam filling compositions, which can solve the problems of high-priced metal molds and achieve low-cost effects

Inactive Publication Date: 2007-10-31
NITTO DENKO CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the support plate is usually formed by injection molding, requiring expensive metal molds each time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composition for foam filling, foam filling member, and foam for filling
  • Composition for foam filling, foam filling member, and foam for filling
  • Composition for foam filling, foam filling member, and foam for filling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0084] Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited by any of the Examples and Comparative Examples.

[0085] 1) Preparation of each example and each comparative example

[0086] According to the recipes shown in Table 1, the foam filling compositions of Examples 1 to 6 and Comparative Examples 1 to 5 were prepared. That is, using a 6-inch mixing roll, at a temperature of 120° C. and a rotation speed of 15 rpm, ethylene-ethyl acrylate copolymer or ethylene-butyl acrylate copolymer, a foaming agent and an organic peroxide, and further as required, are kneaded. Each component of the foaming aid was then press-molded by hot stamping at 120° C. for 1 minute, and molded into a sheet shape with a thickness of 3 mm.

[0087] In addition, in Table 1, "EEA" is an abbreviation for ethylene-ethyl acrylate copolymer, "EVA" is an abbreviation for ethylene-vinyl acetate copo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A composition for foam filling contains an ethylene-ethyl acrylate copolymer having a melt flow rate measured at 190 DEG C. under a load of 2.16 kg in a range from 2 to 8 g / 10 min and / or an ethylene-butyl acrylate copolymer having a melt flow rate measured at 190 DEG C. under a load of 2.16 kg in a range from 1 to 6 g / 10 min, a foaming agent and an organic peroxide.

Description

technical field [0001] The present invention relates to a filling foam for filling between various members or an internal space of a hollow member, and the like, and a foam filling member and a foam filling composition for forming the filling foam. Background technique [0002] In the past, it has been known to fill a hollow member with a closed cross-section formed as a pillar of an automobile or the like as a filling material in order to prevent engine vibration, noise, whirring, etc. from being introduced into the vehicle interior. [0003] As a foamable material for forming such a foam, for example, it has an MI of 0.1 to 6 and contains methyl acrylate in an amount of 10 to 40% by weight, and at least one containing methyl acrylate derived from ethylene and olefinically unsaturated methyl acrylate is proposed. A composition comprising 65% by weight of the matrix polymer and a crosslinking agent, a chemical foaming agent, and a foaming agent activator as a unit (for examp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L23/08C08K5/41C08J9/04C08K5/14C08K5/23
Inventor 宇井丈裕金原和彦西川晋平
Owner NITTO DENKO CORP