Patent · US Expired

Dispersant compositions containing glycerol carbonate and polyester-based dispersants

US7214730B2 · kind B2 · utility

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19Claims

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Assignee

Cognis Deutschland GmbH & Co. KG · DE

Inventors

Ludwig Schieferstein · Ratingen, DE
Manfred Gorzinski · Düsseldorf, DE

Key dates

Filing date	Sep 27, 2002
Grant date	May 8, 2007
Priority date	—
Expiry date	Nov 11, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L67/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Dispersant compositions are described which contain: (a) a carrier medium comprising glycerol carbonate, the carrier medium present in an amount of from 10 to 80% by weight based on the composition; and (b) one or more polyester dispersants present in an amount of from 20 to 90% by weight based on the composition.

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