Patent · US Expired

Halogen scavenger for olefin formulations

US6803401B2 · kind B2 · utility

2Cited by

22References

20Claims

0Family size

Assignee

Reheis, Inc. · US

Inventors

Jawahar Parekh · Livingston, US
Rajanikant D. Desai · Andover, US

Key dates

Filing date	Sep 21, 2001
Grant date	Oct 12, 2004
Priority date	—
Expiry date	Jul 10, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K9/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A halogen scavenging system is provided for inhibiting the corrosion-causing tendency and coloration of halogen-containing olefin polymers or copolymers, comprising incorporating about 0.01% to about 1% of a hydroltalcite-like solid solution having the formula Al2(Mg)a(OH)b(CO3)c(G)d.eH2O and a crystallite size in the <003> direction of about 190 å to about 225 å, and having bidentate coordination for carbonate ion as shown by an infrared spectrum, and wherein 3&lE;a&lE;5.5; 8&lE;b&lE;14; 1.2&lE;c&lE;3; 0&lE;d&lE;1; 1&lE;e&lE;10 and G is a surface active agent into the halogen containing olefin polymer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.