Patent · US Active

Method for producing polymeric solids

US8765842B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Assignee

LANXESS Deutschland GmbH · DE

Inventors

Dirk Achten · Leverkusen, DE
Peter Kueker · Leverkusen, DE
Jürgen Kempkes
Bianka Lorenz · Bodenwerder, DE
Werner Obrecht · Moers, DE
Annika Stobrawe · Dormagen, DE

Key dates

Filing date	Mar 17, 2010
Grant date	Jul 1, 2014
Priority date	—
Expiry date	Jan 9, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2311/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a method for producing polymeric solids free of auxiliary emulators starting from polymer latices (dispersion), wherein a polymer dispersion with a starting ph-value greater than 9 is set to a ph-value of 6 to 9 by adding gaseous carbon dioxide and the polymer dispersion is subsequently coagulated by shearing and/or freezing.

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