Additive mixture containing a particular sterically hindered amine compound and a heat reflecting interference pigment

Patent metadata

Field	Value
Publication number	US-12006417-B2
Application number	US-201615747477-A
Country	US
Kind code	B2
Filing date	Jul 20, 2016
Priority date	Jul 27, 2015
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

An additive mixture containing (A) at least one high molecular weight triazine compound, for example a compound of the formula (I-1-a) wherein n is a number from 1 to 10, and (B) at least one heat reflecting interference pigment.

First claim

The invention claimed is:

1. A three-layer film comprising:
(I) a low density polyethylene, an ethylene-vinyl acetate copolymer, an ethylene-butyl acrylate copolymer, or mixtures thereof;
(II) an additive mixture comprising components (A) and (B),
wherein:
component (A) is a compound of the formula (I-1-a), or a mixture of the compounds of the formulae (I-1-a) and (II-1-a):

wherein n following the bracket of formula (I-1-a) is a number from 1 to 10, and
wherein two outer layers of the three-layer film comprise the (I) and component (A), and a middle layer of the three-layer film further comprises the (I) and (II), wherein the component (B) is at least one heat reflecting interference pigment, which is in the form of platelets coated with one or more metal oxides, wherein the platelets comprise layered silicate, glass, or ceramic.

2. The three-layer film of claim 1 , further comprising a UV absorber.

3. The three-layer film of claim 1 , wherein the UV absorber is selected from the group consisting of a 2-(2′-hydroxyphenyl) benzotriazole, a 2-hydroxybenzophenone, a 2-(2-hydroxyphenyl)-1,3,5-triazine, and mixtures thereof.

4. The three-layer film of claim 1 , further comprising an additive selected from an antioxidant, a slip agent, an anti-block agent, a thermal filler, a pigment, an anti-fog agent and/or an anti-mist agent.

5. The three-layer film of claim 1 , wherein the platelets comprise layered silicate.

6. The three-layer film of claim 5 , wherein the layered silicate is mica, pyrophyllite, sericite, talc, or kaolin.

7. The three-layer film of claim 1 , further comprising 2-(2′-hydroxyphenyl) benzotriazole.

Assignees

• Basf Se

Inventors

• Weyland Tania
• Mueller Daniel
• Guillamon Montserrat
• Cheret-Bitterlin Estelle

Classifications

• C08K5/3475

  condensed with carbocyclic rings · CPC title

• B32B2250/24

  All layers being polymeric · CPC title

• B32B27/18

  characterised by the use of special additives · CPC title

• B32B2307/71

  Resistive to light or to UV · CPC title

• B32B2307/4026

  within the layer by addition of a colorant, e.g. pigments, dyes · CPC title