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Automotive compounds featuring low surface tack

A composition and polymer technology, applied in the field of polymer compositions, can solve problems such as surface stickiness

Inactive Publication Date: 2015-08-12
BOREALIS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For UV absorbers, it was unfortunately found that the application of the commonly used hindered amine light stabilizers (HALS) "Tinuvin 770 / Chimasorb 119" or "Chimasorb 119 / Chimasorb 944" combinations known to those skilled in the art actually leads to sticky surfaces a feeling of

Method used

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  • Automotive compounds featuring low surface tack
  • Automotive compounds featuring low surface tack
  • Automotive compounds featuring low surface tack

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Embodiment Construction

[0032] Further preferred embodiments of the invention are described in the appended claims.

[0033] In a preferred embodiment, the polymer composition (C) of the present invention comprises:

[0034] (a) an amount based on the total composition of 30% to 80% by weight, preferably 40% to 75% by weight, more preferably 50% to 70% by weight of said heterophasic propylene copolymer (HECO),

[0035] (b) said mineral filler (F) in an amount not higher than 40% by weight, preferably not higher than 30% by weight, more preferably not higher than 20% by weight, based on the total composition,

[0036] (c) an amount based on the total composition of 0.01% to 5.0% by weight, preferably 0.03% by weight to 3.0% by weight, more preferably 0.04% by weight to 0.5% by weight, further preferably 0.05% by weight to 0.5% by weight, Such as 0.08% to 0.5% by weight of said 1,2,2,6,6-pentamethyl-4-piperidinyl ester derivatives of formula (I) and said benzoate esters of formula (II) Combination of...

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Abstract

The present invention relates to a polymer composition comprising a heterophasic propylene copolymer, a mineral filler and a light stabilizers comprising a fatty acid derivative and a benzoate derivative. The polymer composition according to the present invention is applicable for automotive articles whereupon the undesired effect of stickiness is reduced significantly compared to automotive articles comprising conventional light stabilizers.

Description

technical field [0001] The present invention relates to a polymer composition comprising a heterophasic propylene copolymer (HECO) and a specific combination of UV absorbers. Furthermore, the invention relates to the use of the combination of composition and UV absorber in a polymer composition for improving the surface adhesion of the polymer composition. Background technique [0002] Automotive interior components, such as instrument panels, door wraps, trim, etc., are generally made of polymers. For these parts, an attempt is often made to mimic a leather or fabric-like surface and feel, giving occupants a high-quality impression of the car. Therefore, haptics and surface characteristics are important properties of automotive interior components. One factor in this is the surface tack of the part. [0003] For UV absorbers, it was unfortunately found that the application of the commonly used hindered amine light stabilizers (HALS) "Tinuvin 770 / Chimasorb 119" or "Chimas...

Claims

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Application Information

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IPC IPC(8): C08L23/10C08K5/3435C08K3/34C08K3/00C08K5/103C08L23/16
CPCC08K3/34C08K5/1345C08K5/34926C08L23/10C08L23/16C08K5/3435C08L2205/03C08L2201/08C08L2207/02C08L2207/062C08L23/06C08L23/12C08L2205/02C08L23/0815C08L23/14C08L2205/035
Inventor 欧文·卡斯特纳克劳斯·莱德勒
Owner BOREALIS AG
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