Basf Aktiengesellschaft

H.b. Fuller Company

Bask Aktiengesellschaft

H.b. Fuller Construction Products, Inc.

David Eckert

Michael A Mitchell

Thomas W Beihoffer

Peter W Carrico

Anthony S Tomlin

Brian W Carlson

Bronwyn T Miller

Gregory W Schad

Kevin P Del Bene

A colored composition including a resin system, and a colorized filler. The colorized filler includes particles including a polymer. The particles have a density less than 2.6 g/cc and an average particle size from 100 microns to 600 microns.

Low density colored composition and methods of making

Surface-treated superabsorbent polymer particles obtained by mixing 100 parts by weight of superabsorbent polymer particles with 0.001 to 10 parts by weight of a hydroxyalkylamide, and heating the surface-treated superabsorbent polymer particles to crosslink molecular chains existing at least in the vicinity of the surfaces of the superabsorbent polymer particles is disclosed. Surface crosslinking the superabsorbent polymer particles with a hydroxyalkylamide substantially increases both the rate of liquid absorption and the quantity of liquid absorbed and retained by the superabsorbent particles.

Surface-treated superabsorbent polymer particles

Surface-crosslinked superabsorbent polymer particles are obtained by treating 100 parts by weight of superabsorbent polymer particles with about 0.001 to about 10 parts by weight of an oxazolinium ion. The oxazolinium ion can be formed in situ by heating superabsorbent particles treated with an oxazolinium ion precursor, such as a hydroxyalkylamide. A stable oxazolinium ion also can be used to surface crosslink the SAP particle. Surface crosslinking the superabsorbent polymer particles with an oxazolinium ion increases both the rate of liquid absorption and the quantity of liquid absorbed and retained by the superabsorbent particles.

A color-stable superabsorbent polymer composition having long-term color stability, and methods of manufacturing the composition, are disclosed. The superabsorbent polymer composition contains an inorganic reducing agent and an optional metal salt, and resists color degradation during periods of extended storage, even at an elevated temperature and humidity.

Color-stable superabsorbent polymer composition

Surface-tested superabsorbent polymer particles obtained by mixing 100 parts by weight of superabsorbent polymer particles with 0.001 to 10 parts by weight of a hydroxyalkylamide, and heating the surface-treated superabsorbent polymer particles to crosslink molecular chains existing at least in the vicinity of the surfaces of the superabsorbent polymer particles is disclosed. Surface crosslinking the superabsorbent polymer particles with a hydroxyalkylamide substantially increases both the rate of liquid absorption and the quantity of liquid absorbed and retained by the superabsorbent particles.

Growing community of inventors

Palatine, IL, United States of America

David Eckert