Sabic Global Technologies B.v.

Dane Ferraris

Vern Lowry

Ahmed Abouelfetouh Youssef

Richard Legg

Mark Erik Nelson

Dejin Li

Jianhua Xu

The invention relates to a piston system () for use in a homogenizer, comprising a piston () that is configured and arranged to make a reciprocating movement in use of the piston system, a cylinder () that is configured and arranged to receive and guide at least a first part of the piston, a first supply channel () that is configured and arranged to supply a lubricating medium () to a portion () of the first part of the piston that in use is arranged inside the cylinder, and a second supply channel () that is configured and arranged to, in use, supply a cooling medium () to a second part of the piston outside the cylinder. Also disclosed is a process for the production of an elastomer agglomerate composition forcing a slurry comprising elastomeric particles through an aperture to obtain the elastomer agglomerate composition using the piston system.

Piston system and high pressure homogenizer using the piston system

The invention relates to a piston system (1) for use in a homogenizer, comprising a piston (2) that is configured and arranged to make a reciprocating movement in use of the piston system, a cylinder (3) that is configured and arranged to receive and guide at least a first part of the piston, a first supply channel (8) that is configured and arranged to supply a lubricating medium (9) to a portion (10) of the first part of the piston that in use is arranged inside the cylinder, and a second supply channel (13) that is configured and arranged to, in use, supply a cooling medium (14) to a second part of the piston outside the cylinder. Also disclosed is a process for the production of an elastomer agglomerate composition forcing a slurry comprising elastomeric particles through an aperture to obtain the elastomer agglomerate composition using the piston system.

A process for the production of an elastomer agglomerate composition wherein the process comprises the steps in this order: (a) providing a slurry comprising elastomeric particles having an average particle size of &#x2264;150 nm in water; and (b) forcing the slurry from (a) through an aperture at a flow velocity of at least 500 m/s. The elastomer agglomerate compositions produced via such process demonstrate a particularly desirable high average particle size.

Process for the production of an elastomer agglomerate composition

The present invention relates to a process for the production of a polymer using a compound comprising at least 2 unsaturated carbon-carbon bonds, wherein the process comprises a polymerization section and a purification section, wherein the product from the polymerization section is subjected in the purification section to a sequence of purification steps comprising: removal of the vapor phase from the product from the polymerization section by means of flash separation to obtain a first vapor phase and a polymerization product; subjecting the first vapor phase to a compression and condensation treatment to obtain a second vapor phase and a condensed monomer phase; wherein the purification steps are conducted in this order. Such process allows for the optimal utilisation of raw materials in the polymerization process.

Process for the production of a polymer using a compound comprising at least 2 unsaturated carbon-carbon bonds

The invention relates to a process for the production of an elastomer agglomerate composition, comprising: forcing a slurry through an aperture in a valve assembly () to obtain the elastomer agglomerate composition; wherein the valve assembly () comprises the valve () and a seat () that are arranged opposite each other to provide a flow channel for the slurry to be homogenized with an emulsifying channel section () that is provided with the aperture; wherein the emulsifying flow channel section is arranged at an angle (a) with respect to an axial center line of the valve in a cross sectional view of the valve assembly; and wherein the slurry comprises elastomeric particles in water.

Growing community of inventors

Geleen, Netherlands

Dane Ferraris