Creation of Coacervation Patents

Our first development was the patent on complex coacervation.

This patent was developed for chemical carbonless papers, the production of which is economically challenging due to volume and quality issues.

In particular, we had to tackle the so-called aging problem, a very complicated one indeed given the proximity of microcapsules with their reagent. This process requires particularly tight microcapsules.

20 Years of Coacervation Research

To improve this process, Microcapsules Technologies can rely on 20 years of coacervation research. Over this period, we had to face several constraints.

This process type is still used, often with microcapsules made porous, room fragrancing, and for phytosanitary products that require biodegradable products; at times, these capsules must be permeable (permeation) to spread products regularly, without the mechanical breakage of the capsule.

We sold these capsules by truckloads worldwide.
Needless to say, we have retained this know-how. We also rely on these techniques to develop biodegradable capsules for detergents.

With the help of ANVAR, we have developed silicone encapsulation. Silicones are composed of silica chains instead of carbon chains on which organic atoms, mainly carbon, are grafted.

We apply this technology to cosmeto-textiles and cosmetics, especially for UV filters. This patent, still in force and internationalized, can be made available to you.

Silicone/Aminoplast Patents

This technique was chosen for laundry products. Following a vast comparison of different technologies in our portfolio, we decided to retain this solution from the beginning and then refined this method over several years and a large number of tests.

It is a flexible patent that allows us to play on the two main layers by varying their percentages according to the needs and problems encountered, and thus precisely adapt the microcapsule to their use.

Example of formula adaptation. The formula for laundry and fabric softeners is not the same. And even that for solid laundry is still different.

A liquid laundry capsule must be extremely hard and resistant to surfactants. For solid laundry, aging properties are less important because there is no permanent aggression of storage in a liquid medium.

We have developed a patent for aminoplast silicone (urea, melamine and other organic compounds).

These patents, the last in particular (the silicon /aminoplast patent), have been specially developed to solve problems posed by detergents. This patent has also been internationalized.

It is a new, general patent that allows producing affordable capsules or without any formaldehyde.

Discover all our application areas of microencapsulation