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 Title: |
EP0940430A1:
Polyamide composite material[German][French]
[ Derwent Title ]
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Country:
Kind: |
EP European Patent Office (EPO)
A1 APPLICATION PUBLISHED WITH SEARCH REPORT i
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| Inventor: |
Yoshikawa, Masaki, c/o Unitika Ltd.;
Fujimoto, Koji, c/o Unitika Ltd.;
Tamura, Tsuneo, c/o Unitika Ltd.;
Ida, Takashi, c/o Unitika Ltd.;
Kojima, Kazushige, c/o Unitika Ltd.;
Kokuryo, Sachiko, c/o Unitika Ltd.;
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| Assignee: |
UNITIKA LTD.
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| Published / Filed: |
1999-09-08
/ 1999-02-23
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| Application Number: |
EP1999000102774
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| IPC Code: |
Advanced:
C08K 3/34;
Core:
C08K 3/00;
IPC-7:
C08K 3/34;
C08L 77/00;
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| ECLA Code: |
C08K3/34+L77/00;
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| Priority Number: |
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| Abstract: |
A polyamide composite material comprising (A) a polyamide resin and (B) silicate layers originating from a layered silicate selected from the group consisting of montmorillonite, swellable fluoromica, vermiculite, and hectorite, dispersed in said polyamide resin on a molecular level. The content of sodium in an inorganic ash of the polyamide composite material is a specific percentage or less by weight according to each layered silicate.
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
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| Family: |
Show 2 known family members
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First Claim:
Show all claims |
1. A polyamide composite material comprising
- (A) a polyamide resin and
- (B) silicate layers originating from a montmorillonite, dispersed in said polyamide resin on a molecular level,
wherein the content of sodium in an inorganic ash of said polyamide composite material is 2.1 wt% or less.
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Description
Expand description |
+ FIELD OF THE INVENTION
This invention relates to a polyamide composite material which provides moulded articles, films, sheets and fibres showing excellent mechanical strength, toughness, heat resistance and dimensional stability and also high tensile breaking elongation with a small standard deviation.
+ BACKGROUND OF THE INVENTION
+ SUMMERY OF THE INVENTION
+ DETAILED DESCRIPTION OF THE INVENTION
+ 1. Raw Materials
+ (1) Montmorillonite
+ (2) Swellable fluoromica (referred to hereinafter as "fluoromica")
+ 2. Methods of Measurement
+ (a) Cation Exchange Capacity of Layered Silicates (meq/100g)
+ (b) Inorganic Ash Content
+ (c) Sodium Content of Inorganic Ash
+ (d) Relative Viscosity
+ (e) Dispersion of Layered Silicate in the Polyamide Composite Material
+ (f) Tensile Strength, Tensile Modulus and Tensile Elongation at Break
+ (g) Flexural Strength and Flexural Modulus
+ (h) Izod Impact Strength
+ (i) Heat Distortion Temperature
+ EXAMPLE 1
+ EXAMPLE 2
+ EXAMPLE 3
+ EXAMPLE 4
+ COMPARATIVE EXAMPLE 1
+ COMPARATIVE EXAMPLE 2
+ EXAMPLE 5
+ EXAMPLE 6
+ EXAMPLE 7
+ COMPARATIVE EXAMPLE 3
+ COMPARATIVE EXAMPLE 4
+ COMPARATIVE EXAMPLE 5
+ COMPARATIVE EXAMPLE 6
+ EXAMPLE 8
+ EXAMPLE 9
+ EXAMPLE 10
+ COMPARATIVE EXAMPLE 7
+ COMPARATIVE EXAMPLE 8
+ EXAMPLE 11
+ EXAMPLE 12
+ EXAMPLE 13
+ COMPARATIVE EXAMPLE 9
+ COMPARATIVE EXAMPLE 10
+ COMPARATIVE EXAMPLE 11
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