Akzo Nobel N.v.

Construction Research & Technology Gmbh

Akzo Nobel Chemicals International B.v.

Nouryon Chemicals International B.v.

Eka Chemicals Ab

Akzo Nobel Pulp and Performance Chemicals Ab

Jan Nordin

James C Smith

Fredrik Solhage

Frank Shaode Ong

Hans Erik Johansson-Vestin

Johan Nyander

Rick Paponetti

Stefan Muessig

Annika Viola Pal

Per Ajdén

Darren Gambatesa

Mark A Bury

Fredrik Svensson

Jermaine Simmons

Ove Nordin

Lars-Olof Svedberg

Thomas Christopher Greschik

Hans-Åke Baltsen

Peter Harry Johan Greenwood

Lena Jonsson

Jonathan Carl Slepsky

Olof Sandin

Richard Paponetti

Susanne Gratz

James Curtis Smith

Hans Johansson-Vestin

Hans-Åke Baltsèn

A device includes a heating zone having an inlet, and an outlet, a pump upstream of and in fluid communication with the heating zone, and capable of generating above-atmospheric pressure in the heating zone; an element for heating the heating zone; an expansion zone with an inlet and an outlet, said inlet of the expansion zone being connected to the outlet of the heating zone in such a way that a pressure drop is created, such that the expansion zone is at a lower pressure than the heating zone; and a back pressure generator downstream of the expansion zone configured to create a variable counter pressure in the expansion zone.

Device for preparation of expanded microspheres

The present disclosure relates to a coating composition, in particular a cool roof or solar reflective coating composition, which comprises an organosilane-functionalised colloidal silica and hollow microspheres, wherein the organosilane-functionalised colloidal silica comprises silica particles with one or more organosilane moieties bound to their surface, and wherein the hollow microspheres comprise a polymeric shell. The present disclosure also relates to substrate coated with the coating composition, and to a method for making such a coating composition. The present disclosure further relates to the use of an organosilane-functionalised colloidal silica and/or hollow microspheres in a cool roof or solar reflective coating composition, for improving properties such as the coating lifetime and ageing characteristics, the storage stability, the tensile strength, the reflectance of radiation over the range of about 280 to 2500 nm, the wet and/or dry adherence, and the dirt pick-up resistance to hydrophilic and/or hydrophobic materials.

Coatings with solar reflective properties

An apparatus and a method for expanding a slurry of thermally expandable thermoplastic microsphere is disclosed. The apparatus and method expand the slurry of thermally expandable thermoplastic microsphere without any direct contact to a fluid heat transfer medium. The apparatus and method utilize a distribution pipe attached to an outlet pipe.

Apparatus and method for expanding thermally expandable thermoplastic microspheres to expanded thermoplastic microspheres

An apparatus including: (a) a steam generator having a power output of less than or equal to about 6 boiler horsepower; (b) a steam conduit in fluid communication with the steam generator; (c) a fluid material conduit in fluid communication with a source of a fluid material, wherein the fluid material includes unexpanded, expandable polymeric microspheres; (d) a treatment zone in fluid communication with the steam generator via the steam conduit, and with the fluid material conduit, such that the fluid material is contacted by steam within the treatment zone; and (e) a back pressure generator in fluid communication with the treatment zone, capable of increasing pressure in the treatment zone, which results in expansion of the expandable polymeric microspheres when the fluid material exits the treatment zone.

Apparatus and system for expanding expandable polymeric microspheres

The present invention relates to methods of modifying cellulose fibers and of producing paper which methods include providing a pulp suspension of cellulose fibers and adding a cellulose derivative during the bleaching of the cellulose fibers in an acidic bleaching stage.

Method of treating cellulose fibres with chlorine dioxide and an alkyl cellulose derivative

The invention relates to a solid powdery composition comprising unexpanded thermally expandable microspheres including a thermoplastic polymer shell encapsulating a propellant and from about 0.1 to about 50 wt % of at least one inhibitor selected from the group consisting of acids having a melting point below about 200&#xb0; C. and precursors therefore. The invention further relates to preparation and use thereof, a composition comprising a polymeric resin, preparation thereof, a process for working a polymeric resin and a material obtainable thereby.

Chemical composition and process

The present invention refers to a process for the production of paper from a suspension containing cellulosic fibers, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition comprising an anionic naphthalene sulphonate formaldehyde condensate and anionic silica-based particles, the composition having a weight ratio of naphthalene sulphonate formaldehyde condensate to silica-based particles within the range of from 0.2:1 to 99:1, and containing naphthalene sulphonate formaldehyde condensate and silica-based particles in an amount of at least 0.01% by weight, based on the total weight of the aqueous silica-containing composition, and with the proviso that the composition contains substantially no cellulose-reactive sizing agent. The invention also encompasses an aqueous silica-containing composition and a method for preparation of an aqueous silica-containing compound.

Aqueous silica-containing composition

Papermaking process using a specified NSF to silica-based particle ratio

Growing community of inventors

Kvissleby, Sweden

Jan Nordin