US 2011/0218136 A1 · POWDER DETERGENT GRANULE CONTAINING ACIDIC WATER-SOLUBLE POLYMER AND MANUFACTURING METHOD THEREOF

Abstract

The present invention relates to powder detergent granules that are substantially free of a water-insoluble component such as zeolite or silica, a method for manufacturing the powder detergent granules and a copolymer having various properties useful as a detergent component. The powder detergent granules of the present invention are substantially free of a water-insoluble component, and thus exhibit good solubility and washing performance (stain removal performance) in cold water, do not leave residue after laundry, and reduce the likelihood of a caking phenomenon during manufacture and storage. And, the powder detergent granules of the present invention are substantially free of zeolite or silica that absorbs a liquid component, but are capable of accommodating a considerable amount of liquid surfactant. Further, a copolymer comprising acrylic acid monomer unit and 2-acrylamido-2-methylpropane sulfonic acid monomer unit, an acidic water-soluble polymer of the present invention, is useful as a detergent component in various aspects.

Claims20

Dependent claims

A method for manufacturing detergent granules, comprising:

providing an acidic water soluble polymer, an alkali builder, and a surfactant;
and
mixing 0.1 to 15 parts by weight of the acidic water-soluble polymer, 10 to 70 parts by weight of the alkali builder, and 1 to 60 parts by weight of the surfactant to form the detergent granules,
wherein the mixing effects a neutralization reaction between the acidic water-soluble polymer and the alkali builder, and
wherein the neutralization reaction generates heat for naturally drying the detergent granules, eliminating the need for a separate heating step.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/046,296Filed 11 Mar 2011

Priority

KR 10-2007-001762321 Feb 2007

Published

8 Sep 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

C11D 17/06
Detergent materials or soaps characterised by their shape or physical properties: powder; Flakes; Free-flowing mixtures; Sheets
C08F 228/02
Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one…:…
C11D 3/378
Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds: polymerised monomers containing sulfur, e.g.…
C11D 3/3784
Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds: polymerised monomers containing phosphorus

Family

Application60/894,275Us provisional application · filed 12 Mar 2007

Application12/033,503Continuation · filed 19 Feb 2008

Application13/046,296Continuation

US 2008/0200362 A1Published application

US 7,928,047 B2Related patent

US 2011/0218136 A1This patent

From the US filing history. Foreign family members aren’t listed.

Powder detergent granule containing acidic water-soluble polymer and manufacturing method thereof

Life of this patent

Powder detergent granule containing acidic water-soluble polymer and manufacturing method thereof

Life of this patent

Abstract

Claims20