C09D101/284

Multifunctional coating films that can be applied in liquid form

Multifunctional coating films that can be applied in liquid form are provided for compressing, sealing, covering and preserving surfaces. The films include a composition of polysaccharide materials and/or homo- or heteroglycan water-soluble polysaccharide derivatives, polyol spacers, and crosslinkers with carbonyl or carboxylic function(s). As-applied, the composition is water-soluble and reactive, but after hardening it is capable of absorbing water or swelling, impermeable to water vapour, stable against water and UV and can be biologically degraded in a controlled manner. By reacting polysaccharide materials, polysaccharide derivatives and polyol spacers with cross linkers having carbonyl or carboxylic function(s), mechanically stable flexible films are obtained, which retain their mechanical properties up to a foreign material content of 80%. The films can swell in a controlled manner and can bind up to 75% water relative to their dry weight, corresponding to the degree of crosslinking and the spacer that is used.

POROUS COATINGS

A porous metallic coating is provided. The coating is characterized by a combination of optimized properties that improve coating performance, as measured by heat transfer efficiency. The porous coating has optimal ranges for properties such as porosity, particle size and thickness, and has particular applicability in boiling heat transfer applications as part of an air separations unit. The porous coatings are derived from slurry-based formulations that include a mixture of metallic particles, a binder and a solvent.

POROUS COATINGS

A porous metallic coating is provided. The coating is characterized by a combination of optimized properties that improve coating performance, as measured by heat transfer efficiency. The porous coating has optimal ranges for properties such as porosity, particle size and thickness, and has particular applicability in boiling heat transfer applications as part of an air separations unit. The porous coatings are derived from slurry-based formulations that include a mixture of metallic particles, a binder and a solvent.

Cold-water soluble extruded starch product

Disclosed is a cold-water soluble starch and a process for preparing same. Generally, the process comprises providing a hydroxyalkyl starch and applying a shearing force to the starch in an extruder in the presence of moisture, the force and the moisture each being sufficient to gelatinize at least substantially all of the granules of the starch to thereby form a sheared starch. The starch is heated to its gelatinization temperature after the starch has passed partially through the barrel of the extruder, with the moisture being maintained at a level sufficiently high to allow gelatinization but sufficiency low to protect the starch from becoming too sticky to extrude. The extruded starch product thus formed may be used in connection with a number of film-forming, coating, and other applications.

Cold-water soluble extruded starch product

Disclosed is a cold-water soluble starch and a process for preparing same. Generally, the process comprises providing a hydroxyalkyl starch and applying a shearing force to the starch in an extruder in the presence of moisture, the force and the moisture each being sufficient to gelatinize at least substantially all of the granules of the starch to thereby form a sheared starch. The starch is heated to its gelatinization temperature after the starch has passed partially through the barrel of the extruder, with the moisture being maintained at a level sufficiently high to allow gelatinization but sufficiency low to protect the starch from becoming too sticky to extrude. The extruded starch product thus formed may be used in connection with a number of film-forming, coating, and other applications.

Method of manufacturing ultra-low viscosity hydroxyalkyl cellulose through partial neutralization method

The present invention relates to a method of manufacturing ultra-low viscosity hydroxyalkyl cellulose through a partial neutralization method, and the method includes: reacting cellulose with an alkalizing agent to obtain alkalized cellulose; reacting the alkalized cellulose with an etherifying agent to obtain hydroxyalkyl cellulose; performing first neutralization of the hydroxyalkyl cellulose; decomposing the hydroxyalkyl cellulose by using hydrogen peroxide; and performing second neutralization of the hydroxyalkyl cellulose. Through the aforementioned method, ultra-low viscosity hydroxyalkyl cellulose can be manufactured while preventing a process problem, such as swelling, which may occur through the decomposition of an acid treatment.

COMPOSITE PARTICLES, METHOD FOR PRODUCING COMPOSITE PARTICLES, AND USE THEREOF
20170058116 · 2017-03-02 ·

There are provided a method for producing particles by suspension polymerization which ensures an excellent dispersion stability of the monomer and a simpler washing step, composite particles obtainable by this production method, and use of the composite particles. The method for producing composite particles includes a polymerization step of subjecting a monomer mixture which contains a polymerizable vinyl monomer to aqueous suspension polymerization in a presence of small polymer particles having a volume-average particle size of 20 to 500 nm, with a water-soluble cellulose compound adsorbing on surfaces of the small polymer particles, and thereby obtaining composite particles which contain the small polymer particles and large polymer particles greater than the small polymer particles.

Slurry Formulations for Formation of Reactive Element-Doped Aluminide Coatings and Methods of Forming the Same

Novel slurry formulations and processes for forming improved protective coatings used in the hot section components of gas turbine engines are provided. The process includes a unique two-step deposition methodology whereby the required concentration of reactive element within an improved reactive element doped aluminide coating can be consistently produced in a reproducible manner.

COMPOSITIONS COMPRISING MODIFIED LIGNIN USEFUL FOR ADDITIVE MANUFACTURING

The present invention relates to compositions comprising modified lignin and modified cellulose which are suitable for use in additive manufacturing (e.g. 3D printing), in particular for direct ink writing (DIW). In particular, the invention relates to a composition suitable for direct ink writing, comprising a) a functional ether of lignin, b) a functional ether of cellulose, and c) a solvent comprising an aliphatic alcohol and optionally water. The content of the functional ether of lignin in the composition is at least 25 wt. % based on the combined weights of functional ether of lignin and functional ether of cellulose.

Coated dehydrated microorganisms with enhanced stability and viability

The present invention relates to coated dehydrated microorganisms comprising a dehydrated microorganism surrounded by at least one coating, said coating comprising by dry weight at least 25% of hygroscopic salt(s) and wherein the pH of the coating is compatible with viability of the coated dehydrated microorganism. The coating can be partially crystalline, the salt(s) in the coating having preferably a crystallinity degree of up to 60% once applied onto the dehydrated microorganism. The present invention also relates to liquid coating compositions, methods for coating and protecting a dehydrated microorganism. Finally, the present invention relates to a method for the preparation of food products, feed products, consumer healthcare products or agri-products as well as to a food product, feed product, a consumer healthcare product or an agri-product containing such coated dehydrated microorganisms.