ULTRAVIOLET RADIATION STABILIZED POLYOLEFINS

WIPO Patent Application WO2004009690

A3

The present invention provides polyolefin compositions that are UV stable and suitable for articles that may be exposed to sunlight. The present invention provides, in one aspect, a polyolefin homopolymer or copolymer comprising, by weight of the polyolefin: (a) from 0.001 to 2 wt% hindered amine; (b) from 0.001 to 1 wt% ethoxylated amine; and (c) from 0.001 to 1 wt phenolic antioxidant; wherein the amount of phenolic antioxidant (PA), ethoxylated amine (EA) and hindered amine (HA) present in the composition is satisfied by the equation: formula (I) wherein Q ranges from 0.15 to 250 when each component is expressed as a weight percentage. The composition is stable towards UV radiation such that is useful for any number of articles such as automotive components and other articles that are, for example, injection molded.

JPH07102130	POLYPROPYLENE RESIN COMPOSITION
JP7045474	Latex composition for dip molding, its manufacturing method and the molded product formed by this.
JP6068316	Filtering medium

VAILLANT DANIEL (FR)

PCT/US2003/018473

August 12, 2004

June 11, 2003

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EXXONMOBIL CHEM PATENTS INC (US)
VAILLANT DANIEL (FR)

C08K5/13; C08K5/17; C08K5/34; C08K5/3435; C08K5/3492; C08L23/02; C08L79/00; (IPC1-7): C08K5/00; C08L23/02

WO2001062840A1

2001-08-30

GB1352347A	1974-05-08
EP0310393A2	1989-04-05
EP0565073A2	1993-10-13
EP0487077A2	1992-05-27
US4764428A	1988-08-16

DATABASE WPI Section Ch Week 200123, Derwent World Patents Index; Class A17, AN 2001-219155, XP002243158
DATABASE WPI Section Ch Week 199013, Derwent World Patents Index; Class A17, AN 1990-096232, XP002243157

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