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Rapid dispersing rheological additives to simplify paint manufacture

Rapid dispersing rheological additives to simplify paint manufacture 8 PIGMENT AND RESIN TECHNOLOGY NOVEMBER 1982 Rapid dispersing rheological additives to simplify paint manufacture A new rapidly dispersing organoclay thickener, whic h is said to offer cost savings to paint manufac­ turers, is being launched world-wid e by NL Chemicals. The new organoclay — Bentone SD-1 — is claimed to represent a significant breakthrough in rheological additiv e technology, and will greatly simplify the manufacturin g process of solvent-based paints, speed­ ing up throughput, achieving more flexible and trouble- free production whilst maintaining product quality. Organoclay rheological additives are not only thickeners but also provide control of viscosity and pigmen t settling and at the same time ensure correct applicatio n properties. Existing organoclay additives give excellent contro l of coatings rheology, but their use requires precise control of paint manufacturing conditions. In order to obtain full dispersion and activation a time- consumin g procedure must be followed, often involv­ ing premix. Even small errors at this stage can result in paint with viscosity, storage and application pro­ blems. Bentone SD-1 is claimed to be the first rheo­ logica l additive that enables coatings makers to take ful l advantage of today's most advanced manufactur­ ing techniques. New types of dispersion equipment wit h faster throughput rates and, often, lower shear, wor k best with easy-to-disperse raw materials such as this new product. rheological additives in solvent based coatings today. Its excellent dispersibility provides manufac­ In a paint system, they provide viscosity control, turers wit h several opportunities for productivity gains, prevent pigment settlement and improve application such as raw material and energy savings and higher properties such as brushability, sprayability, non- sagging and levelling. Coatings manufacturing tech­ throughput . Fast and easy dispersion, full and consis­ niques are continually evolving. Today new types of tent development of rheological properties, simplified dispersion equipment with faster throughput rates, and manufacturin g procedures, greater formulation and often lower shear are in use. Easier to disperse raw productio n flexibility, and improved plant efficiency. materials are therefore required to take advantage of NL Chemicals state that a variety of paints current production techniques. made using the new rheological additive show excel­ lent properties in both application and performance. The easy dispersibility of the product allows its addition at virtually any point in the manufacturing Background to Bentone SD-1 process. It can be added most effectively either at, or Bentone SD-1 is a rapidly dispersible rheo­ after the pigment milling stage or during letdown. logica l additive, eliminating the need for high shear, The use of the new additive is further claimed pregels and polar activators in the thickener incorpora­ to enhance paint production efficiency since it allows tio n stage of paint manufacture. The first of a family higher throughput, time, energy and raw material sav­ of new organoclays, this new product makes the ings and better quality consistency. For example, a formulatin g and manufacture of aliphatic solvent- use of conventional rheological additive in the mill containin g paints significantly easier, faster and more base can limit the level of pigment solids with many trouble-free . Incorporating all the performance charac­ types of dispersion equipment, whilst bodying of the teristics of NL Chemicals' Bentone 34 and Bentone additiv e during dispersion can slow the milling rate. 3 8 organoclays but with the additional advantage of By adding Bentone SD-1 later in the process, higher outstanding dispersibility, this new rheological addi­ pigment concentrations in the mill base are possible. tive offers paint producers greater plant flexibility and The elimination of the organoclay pre-wetting and dis­ efficiency with time, energy and raw material cost persion stage is another obvious time, energy and savings. labour saving possibility. NL Chemicals invented organoclay thickeners Details : NL Chemicals Europe, Inc., Rue de some 30 years ago. They are the most widely used I'Hôpital , 31 Boite 6, B-1000 Brussels, Belgium. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pigment & Resin Technology Emerald Publishing

Rapid dispersing rheological additives to simplify paint manufacture

Pigment & Resin Technology , Volume 11 (11): 1 – Nov 1, 1982

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0369-9420
DOI
10.1108/eb041847
Publisher site
See Article on Publisher Site

Abstract

8 PIGMENT AND RESIN TECHNOLOGY NOVEMBER 1982 Rapid dispersing rheological additives to simplify paint manufacture A new rapidly dispersing organoclay thickener, whic h is said to offer cost savings to paint manufac­ turers, is being launched world-wid e by NL Chemicals. The new organoclay — Bentone SD-1 — is claimed to represent a significant breakthrough in rheological additiv e technology, and will greatly simplify the manufacturin g process of solvent-based paints, speed­ ing up throughput, achieving more flexible and trouble- free production whilst maintaining product quality. Organoclay rheological additives are not only thickeners but also provide control of viscosity and pigmen t settling and at the same time ensure correct applicatio n properties. Existing organoclay additives give excellent contro l of coatings rheology, but their use requires precise control of paint manufacturing conditions. In order to obtain full dispersion and activation a time- consumin g procedure must be followed, often involv­ ing premix. Even small errors at this stage can result in paint with viscosity, storage and application pro­ blems. Bentone SD-1 is claimed to be the first rheo­ logica l additive that enables coatings makers to take ful l advantage of today's most advanced manufactur­ ing techniques. New types of dispersion equipment wit h faster throughput rates and, often, lower shear, wor k best with easy-to-disperse raw materials such as this new product. rheological additives in solvent based coatings today. Its excellent dispersibility provides manufac­ In a paint system, they provide viscosity control, turers wit h several opportunities for productivity gains, prevent pigment settlement and improve application such as raw material and energy savings and higher properties such as brushability, sprayability, non- sagging and levelling. Coatings manufacturing tech­ throughput . Fast and easy dispersion, full and consis­ niques are continually evolving. Today new types of tent development of rheological properties, simplified dispersion equipment with faster throughput rates, and manufacturin g procedures, greater formulation and often lower shear are in use. Easier to disperse raw productio n flexibility, and improved plant efficiency. materials are therefore required to take advantage of NL Chemicals state that a variety of paints current production techniques. made using the new rheological additive show excel­ lent properties in both application and performance. The easy dispersibility of the product allows its addition at virtually any point in the manufacturing Background to Bentone SD-1 process. It can be added most effectively either at, or Bentone SD-1 is a rapidly dispersible rheo­ after the pigment milling stage or during letdown. logica l additive, eliminating the need for high shear, The use of the new additive is further claimed pregels and polar activators in the thickener incorpora­ to enhance paint production efficiency since it allows tio n stage of paint manufacture. The first of a family higher throughput, time, energy and raw material sav­ of new organoclays, this new product makes the ings and better quality consistency. For example, a formulatin g and manufacture of aliphatic solvent- use of conventional rheological additive in the mill containin g paints significantly easier, faster and more base can limit the level of pigment solids with many trouble-free . Incorporating all the performance charac­ types of dispersion equipment, whilst bodying of the teristics of NL Chemicals' Bentone 34 and Bentone additiv e during dispersion can slow the milling rate. 3 8 organoclays but with the additional advantage of By adding Bentone SD-1 later in the process, higher outstanding dispersibility, this new rheological addi­ pigment concentrations in the mill base are possible. tive offers paint producers greater plant flexibility and The elimination of the organoclay pre-wetting and dis­ efficiency with time, energy and raw material cost persion stage is another obvious time, energy and savings. labour saving possibility. NL Chemicals invented organoclay thickeners Details : NL Chemicals Europe, Inc., Rue de some 30 years ago. They are the most widely used I'Hôpital , 31 Boite 6, B-1000 Brussels, Belgium.

Journal

Pigment & Resin TechnologyEmerald Publishing

Published: Nov 1, 1982

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