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Technology Bulletin
Industrial Manufacturing, Materials and Transport Technologies
Technology Offers
Technology for Instantaneous Redispersion of Actives
TP 36421
A highly efficient solution to the suspension handling/treatment problems has been suggested.
The known major difficulty to overcome when you want to dry an emulsion and to trap droplets
of actives in a polymer matrix is prevention of phase separation and coalescence during the
drying process. The novel high active loading dry emulsion technology paves the way to a
broad range of applications, as a powder or a film.
The developer company’s expertise in physical chemistry and formulation has afforded us the
ability to control the phase diagram of complex systems to prevent phase separation during
drying, thus leading to unique set of properties:

preservation of the droplet size,

excellent stability of the dry emulsion under storage,

instantaneous re-dispersion in aqueous systems,

and restitution of the initial size of the emulsion with no necessity of shear and with no
solid residues.
Technology Benefits Description
Rhodia's dry emulsion technology is useful every time you need a liquid in powder form.
For example:
- management of complex formulations with non-compatible ingredients
- protection of active ingredients from degradation by water
- long-term storage of emulsions without degradation of the physical properties
- formulation of liquid actives for powder products
- sensory signal triggered by water or humidity.
Page 1
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The main characteristics of our technology are:
- Dry form that can prevent compatibility issues and degradation of the active during storage.
- An effective doubling of active content from the usual 30% to up to 65%.
- Instantaneous re-emulsification or re-dispersion in presence of water or humidity.
- Large range of accessible droplet sizes (from 0.1 to several microns).
- Versatility of the drying process (spray-drying, granulation, thin film drying,...) leading to a
large range of solid forms (powder with adjustable flowability, granules, flakes,...).
- Possibility to make films that release actives under humidity
- Possibilty to formulate in a large range of pH (7-12).
- No insoluble materials after re-emulsification in water.
Our technology is adapted to any hydrophobic liquid that can be emulsified in water, or to solid
particles that are difficult to disperse in water
A large range of actives can be handled (perfumes, drugs, antifoams, emollients, ...) with
numerous potential applications in home care, coatings, personal care, etc...
Multiple emulsions can also be processed.
For hydrophilic actives, the same benefits can be obtained through drying of a double
emulsion.
Technology Differentiation and Uniqueness
Unique set of properties thanks to the absence of phase separation during emulsion drying:
- High active content up to 65% instead of the usual 30% thanks to the polymer-based
technology.
- Excellent stability of the dry emulsion in storage under severe conditions like freezing or high
temperature.
- Instantaneous re-emulsification or re-dispersion in aqueous systems.
- Restitution of the initial size of the emulsion with no necessity to shear or heat to disperse the
active in the aqueous formulation.
- No solid residues.
Page 2
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- Tunable properties: droplet size, suitable to various drying processes (spray-drying,
granulation, thin film drying, ...) leading to various solid forms (powder, granules, flakes,
films...).
IP Summary
Patent information has not been disclosed.Development Stage
Commercialization
Application and Potential Advantage
Personal care: - enhanced skin feel or moisturizing in foundations - fragrances or emollients
delivery in bath salts - formulation for dry wipes - processing aid for incorporation of actives in
creams
Home care: - incorporation of liquid ingredient in powder detergent (softeners,...) - films that
release actives under humidity (bactericide, anti-fungal, fragrances...) - formulation of dry
wipes
Industrial: - formulation of emulsifiable granules with very long-term stability, even in severe
conditions like freezing or high temperature (lubricants, ...) - processing aid for incorporation of
actives in water - prevention of spill troubles faced with liquid formulation (safer for workers
and environment)
Coatings: - powder formulation for paints with immediate re-dispersion in water - coatings with
controlled release of actives under humidity: bactericide, anti-fungi,... - controlled release of
dyes under humidity
Any application where delivery of actives triggered by humidity is needed
Any application where there is a need to incorporate a liquid in a powder or solid formulation
Technology Provided By
A global specialty chemical company (having 20,000 people employed around the world,
annual sales amount exceeding EUR 5,000 million, with 3 % of this amount allocated to
research and development), with strong technological positions in application chemistry,
specialty materials and services, and fine chemicals, combines molecules and innovative
technologies to deliver custom solutions tailored to its customers' unique challenges.
Collaboration Type Sought
Licensing (exclusive or non-exclusive) based to selected market segments and applications. Open to custom development of an application or a product. - Unique ingredients for this
technology industrially available.Seller Support
Documentation, personnel.
Silicon Atomizer Delivers Precise Control of Droplets
Page 3
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TP 36430
General Description
A renowned global leader in translating materials science into products offers silicon
fabrication techniques to produce an atomizer for applications where control of the spray is
most critical. By creating the atomizer using well-understood silicon fabrication techniques,
much tighter control can be achieved in hole position, shape, and proximity (and consequently
better control over the spray) than can be achieved by conventional metal machining.
Applications include micro-fine coatings, nebulizers (a droplet size of 2-5 micrometers is ideal
for inhalation deep within the lungs), diesel and gasoline fuel injectors, and similar tasks where
precise control is necessary.
The technology is simple in concept. By using well-understood silicon fabrication techniques,
the atomizer can produce dramatically closer tolerances in hole size, hole shape, and in coflow (accompanying gas) outlets. Because the atomizer is built up of multiple bonded layers of
silicon and Pyrex, virtually any network of conduits and “plumbing” is possible behind the face
of the atomizer. Hole sizes of 1-10 microns are achievable, which are difficult to achieve with
consistency in a machined metal atomizer, for example.
In addition, accurate and very close hole positioning and a variety of hole shapes can be
achieved that cannot be achieved in metal fabrication. Holes need not be symmetrical. Any
shape that can be fabricated in silicon is possible. Because the atomizer is built up of multiple
layers of silicon and Pyrex stacked and bonded together, almost any internal fluid and gas
delivery network can be designed into the atomizer head. Many different configurations are
possible to suit a wide variety of applications. Thus the atomizer offers tight control over
droplet size, droplet size distribution, pressure, flow rate, and droplet velocity. The atomizer
can deliver essentially mono-disperse sprays.
Unlike conventional technology
The proposed silicon atomizing technology produces a spray having droplets with a mean
diameter of 10 micrometers or smaller. The size range of the droplets produced is very tight.
The technology uses a gas co-flow to help control the momentum of the emerging droplets, but
does not need to use gas to form the droplets themselves (although the “plumbing” behind the
atomizer head is a matter for application-specific design). As a result, there is a small gasliquid mass ratio, yet the atomizer is capable of substantial throughput of atomized liquid.
Basically, the atomizer forms droplets from a jet of liquid through Rayleigh breakup, and flows
a gas against the droplets to inhibit coalescence of the droplets. Holes in silicon can be closer
together, may be symmetric or asymmetric, can be interspersed with outlets for co-flow gases
(to help regulate droplet velocity and momentum), and will show less overall wear during use
than do holes in metal.
Silicon fabrication results in a product that is highly stable during long production runs
(comparable to silicon chip manufacturing in this regard). Metal fabrication can vary greatly
over the course of a run.
Silicon fabrication allows multiple layers to be created and bonded together with wellunderstood technology. This permits the creation of almost any internal fluid and gas delivery
Page 4
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network that is required. Metal fabrication does not allow multi-layer manufacturing because
metal layers do not bond easily.
Despite its extreme accuracy and high degree of control over the droplet and flow parameters,
the silicon atomizer is not a “bleeding edge” technology, and is thus well within the capabilities
of today’s silicon fabrication plants.
IP Summary
This technology is supported by 4 US patents. The most recent year of issue is 2
Development Status Summary
The technology has been reduced to practice and has been shown to work. There were no
unknown issues discovered during reduction to practice. Silicon atomizers are sensitive to
abrupt shock (as is most glass), and exhibit a shortened life when exposed to high heat and
flame. A prototype and drawings are available to demonstrate reduction to practice.
Application and Potential Advantage






Micro-fine coatings: Microscopic time-release coating layers are possible. Microcoatings of all types are possible—food, drugs, electronics, and high-tech dopants, for
example
Nebulizers, drug-delivery: Droplet size of 2-5 micrometers is ideal for inhalation deep
within the lungs. Diesel and gasoline fuel injectors: Droplet size of 20 micrometers is
ideal for fast fuel vaporization
Spray drying of chemicals and foods.
Spray cooling
Fire suppression.
Applications where control of delivery parameters is critical to successful outcome:
droplet size, droplet size distribution, delivery pressure, flow rate, and droplet velocity
are tightly controllable.
Collaboration Type Sought
License, for sale
Seller Support
Documentation, personnel
Available Technical Assistance
Various personnel are available subject to negotiation.
Catalytic Ceramic Airflow and Gas Mixer
Page 5
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TP26209
A company in USA has developed a production technology for highly efficient static mixers of
airflow and gas. The mixers can be molded to any outer shape with diameters from 2 cm up to
2 m. It can be made for different ceramic materials (Al2O3, SiC, Cesic) depending on the
application required, with different mixing angles, inner canal geometry and inner surfaces for
optional catalytic deposition. The mixer is highly chemical resistant, and can be used in
temperatures up to 1450°C -- well above those achievable with a stainless steel mixer. The
ceramic static mixers are particular suitable for a catalytic coating.
The production process comprises the cost-efficient rough casting of PU foam, followed by
subsequent wetting with a ceramic slicker (SiC, Al2O3, ZnO2 or other), drying, sintering and,
finally, shape cutting.
A set of 140 different mixer prototypes are now in place at six customer sites, being tested with
respect to mixing quality, pressure drop characteristic, heat transfer coefficient, thermal shock,
and thermal conductivity. This data will be used to establish design criteria for any application.
It opens new application markets such as automotive and flue gas purification. By utilizing
existing ceramic foam molding technology, the mixer can be manufactured in a wide variety in
different designs and materials for a number of applications.
By utilizing existing ceramic foam molding technology, the mixers can be manufactured in a
wide variety in different designs and materials for a number of applications
The durability and essentially improved specifications of the new mixers, in comparison to the
competitor products produced up to date, open new opens new application markets for the
novel
product
(such
as
automotive
and
flue
gas
purification).
This technology is supported by a US patent, with no geography or application restrictions
imposed on the licensing.
Field of use and intended application
Three initial applications have been identified and are under evaluation: water purification for
the chemical industry; as the packing of a regenerator for regenerative burners (where it
decreases pressure drop and the overall dimension of the burner system); and as a flow
rectifier upstream of an exhaust gas catalyst in automotive applications.
Other applications may include: radiation walls in industrial continuous furnaces, as packing for
porous burners, exhaust gas denitration for power stations, in recuperators, and in heatexchangers
Collaboration types sought
Page 6
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Licensing; documentation and personnel support, as well as other forms of cooperation are
optional, by bilateral negotiation.
Nondestructive Testing by Tomography-Plus-3D-Digitizing Technique
ANVR TO_CRCIA_TOMO
A French company has developed a nondestructive testing process of X-ray tomography.
Computed X-ray tomography is a nondestructive procedure that allows obtaining images of
any sections of a scanned object. This technology is the aid for rapid and accurate check of
the inner and outer features of the object. Furthermore, it is possible to expose the object to
CAD digitizing. The company looks for industrial partners.
Automated Vehicles for Short-Distance Passenger Transportation as TaxiCabs or Shuttle Taxis
ANVR 04/02/26/BA/TO
Having elaborated the outcomes of the national programmes on new intellectual transportation
systems for urban areas of the future, a SME from France offers two types of promising
automated and robotized electric vehicles, for the individual transportation or group
transportation along fixed routes and schedules, respectively. Financial, industrial and
consumer partnerships are sought for faster distribution of the technology.
Gas Nitration and Nitrocarburizing Sensors
ANVR ANVAR/ALS/09032004
A new type of gas composition sensors has been developed by a French SME. With the novel
devices it is possible to take chemical potential of various elements for the purpose of
monitoring the nitrocarburizing air inside industrial furnaces. The major advantages are:
improved accuracy of analysis, better safety and improved reproducibility of nitride and carbide
layer on steel. The company searches for a major partner company, well known in the market
for gas analyzers or electrical engineering
CARG'.UP: Easy-to-Load Container for Light-Duty Trucks
ANVR ANV-F/TO/2004-01
Page 7
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A French SME specialized in logistics has developed a novel concept of a container for lightduty chassis/trucks. The container is easily detached from a truck bed, being supported by
slide-out rests. The product is designed for standard light-duty cargo vehicles of total weight
less than 7.5 tons. The company seeks a supplier of the equipment and a manufacturer of
trucks and vans. The partner should also be a specialized vendor of vehicles in the “assembly
kits”.
Complete Recycling and Reclamation System for Refrigeration Equipment
Ref: TO/B/14/6
A small UK-based SME has developed an innovative system for the complete recycling of
fridges. Using patented technology, this system enables 100% of the fridge to be recycled. The
system results in a number of saleable recyclates, including metals, foams, plastics and oil. In
addition, all CFCs (chlorofluorocarbons) are removed and neutralised. The company is
seeking a joint venture or a licensing agreement.
Innovative Solution to the problems associated with Co-ordinate Measuring
Machines
Ref: TO/B/14/4
A small UK-based company has developed an innovative technology for use with Co-ordinate
Measuring Machines (CMM). This cost-effective technology solves all problems of inaccuracy
due to temperature variation and premature wear due to airborne contaminants by
encapsulating the CMM in a clean, temperature-controlled environment. The company is
seeking a joint venture agreement or a commercial agreement with technical assistance.
New Machine for Sterilizing and Decontaminating Rooms
Ref: TO/B/14/33
A UK company has developed a machine that uses advanced, free-radical technology to
eliminate micro-organisms and odours from all surfaces, crevices and the atmosphere in
rooms and public spaces. Proven to be effective against MRSA “super-bug”, this technology
will be a major method of controlling the spread of infection in areas such as, hygiene control
in food production, control of SARS at airports and control, of hospital acquired infections. The
company seeks partners for collaboration.
Thermal Printing Technology
Page 8
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Ref: TO/B/14/8
A UK-based company has the know-how and experience to design, develop and produce
application-specific thermal printer mechanisms to fit the requirements needed in a variety of
industries. The company wishes to form joint ventures with companies seeking this
technology.
Page 9