Patent · US Active

Aqueous polymer dispersion for paper with a copolymer of vinyl acetate and an acrylate monomer

US10414938B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Assignee

BASF SE

Inventors

Nico Veling · Heidelberg, DE
Lucia Jimenez Garcia · Mannheim, DE
Dirk Lawrenz · Ludwigshafen am Rhein, DE

Key dates

Filing date	Apr 7, 2015
Grant date	Sep 17, 2019
Priority date	—
Expiry date	Apr 29, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2201/54
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a process for preparing an aqueous dispersion of a polymer P, which comprises the emulsion polymerization of vinyl acetate, an acrylate monomer, which is a C1-C10 alkyl acrylate or a C1-C10 methacrylate, an α,β-ethylenically unsaturated C3-C8 carboxylic acid, glycidyl methacrylate or glycidyl acrylate, optionally an ethylenically unsaturated sulfonic acid and optionally an ethylenically unsaturated other monomer. Furthermore, the aqueous polymer dispersion obtainable from this process and a powder form thereof are disclosed. They are useful for a paper coating slip containing one of the aforementioned forms. A paper or a cardboard, which is coated with the paper coating slip, shows surface strength, which is expressed by a good dry pick resistance, a good wet pick resistance or good offset test results. The aqueous polymer dispersion or the powder form thereof is furthermore useful as a binder.

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