Patent · US Active

Dispersant polymer for automatic dishwashing

US12180438B2 · kind B2 · utility

0Cited by

6References

15Claims

0Family size

Assignees

Rohm and Haas Company · US
UNION CARBIDE CORPORATION · US

Inventors

Scott Backer · Phoenixville, US
Marianne Creamer · Warrington, US
Paul Mercando · Pennsburg, US
Eric P. Wasserman · Hopewell, US
Ashutosh Umarvadia · Horsham, US
Muhunthan Sathiosatham · Doylestown, US
James H. Pawlow · Akron, US

Key dates

Filing date	May 19, 2020
Grant date	Dec 31, 2024
Priority date	—
Expiry date	Aug 2, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D2111/18
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An automatic dishwashing composition is provided including a builder; a phosphonate; a nonionic surfactant; and a dispersant polymer, comprising: (a) 50 to 95 wt %, based on weight of the dispersant polymer, of structural units of a monoethylenically unsaturated monocarboxylic acid monomer; and (b) 5 to 50 wt %, based on weight of the dispersant polymer, of structural units of a sulfate bearing ethylenically unsaturated monomer.

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