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1. (WO2017182805) ADDITIVE COMPOSITION, METHOD OF BLENDING SAME AND A LOW HAZE POLYOLEFIN MATERIAL AND PREPARATION THEREOF

Pub. No.:    WO/2017/182805    International Application No.:    PCT/GB2017/051094
Publication Date: Fri Oct 27 01:59:59 CEST 2017 International Filing Date: Thu Apr 20 01:59:59 CEST 2017
IPC: C08K 5/00
C08K 5/1575
Applicants: SANTAMARIA, Estibaliz
PHAN, Hieu-Dinh
NIGA, Sukehiro
UCHIYAMA, Yohei
NJC EUROPE LIMITED
Inventors: SANTAMARIA, Estibaliz
PHAN, Hieu-Dinh
NIGA, Sukehiro
UCHIYAMA, Yohei
Title: ADDITIVE COMPOSITION, METHOD OF BLENDING SAME AND A LOW HAZE POLYOLEFIN MATERIAL AND PREPARATION THEREOF
Abstract:
The present invention relates to an additive composition and a low haze polyolefin material which may be prepared using said additive composition. In particular, the polyolefin material is prepared from a polyolefin resin composition comprising one or more optical brighteners, bis-3,4-dimethylbenzylidene sorbitol and bis-p- ethylbenzylidene sorbitol at a certain weight ratio. In an aspect, the present invention relates to a method for forming a polyolefin material; said method comprising: (i) preparing a polyolefin resin composition comprising polyolefin resin, one or more optical brighteners, bis-3,4- dimethylbenzylidene sorbitol and bis-p-ethylbenzylidene sorbitol, wherein the weight ratio of bis-3,4- dimethylbenzylidene sorbitol to bis-p-ethylbenzylidene sorbitol in the polyolefin resin composition is 45:55 to 25:75; (ii) processing said polyolefin resin composition to form said polyolefin material.