Patent · US Active

Polymer particle

US9214250B2 · kind B2 · utility

0Cited by

9References

11Claims

0Family size

Assignee

Conpart AS · NO

Inventors

Keith Redford · Hagan, NO
Helge Kristiansen · Oslo, NO
Heidi Johnsen · Trondheim, NO
Ruth Schmid · Trondheim, NO
Justyna Justynska · Trondheim, NO

Key dates

Filing date	Oct 28, 2011
Grant date	Dec 15, 2015
Priority date	—
Expiry date	May 21, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2461/00
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A heat-treated polymer particle comprising an addition polymer core particle which has had swollen and polymerized therein a blend of an aromatic alcohol with an aldehyde or a blend of an aromatic amine or urea with an aldehyde and which has been subsequently heat treated, e.g. to a temperature of at least 150° C.

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