RIBERGLAS,S.L. is distributor and representative of POLYNT in Spain since 1993.

  • Poliester resin distributor
  • BMC and SMC representative



Polynt was established in 1955 with an industrial site in Scanzorosciate (Bergamo), where the Group’s headquarters are now located.

Polynt is one of the leading producers of specific polymer chemical intermediates, such as anhydrides (Maleic, Phthalic, and Trimellitic) and their derivatives (e.g., Plasticizers), dibasic acids (Fumaric and Malic), unsaturated polyester resins, compounds and composites and special esters. Such products belong to the broad category of chemical intermediates, i.e., these products are in the middle of the chain that begins with oil refining continuing through production and up to the sale and distribution on the market of finished goods.

The products are used for the production of plastics, paints, inks and adhesives, electrical and electronic materials and components, paper and lubricants. The compounds are utilised in the transportation, construction and electrical industries.Further markets are food, feed and fragrances sectors.

The Company’s activity comprises research and developmentproduction, marketing and sales. Polynt develops technologies that are utilised internally for production as well as licensed to third parties.

In addition to the five Italian sites, Polynt is present on international markets through its network of production and commercial sites in China, Hong Kong, Germany, Poland, UK, France and Spain.

This geographical expansion has been achieved both through the acquisition of existing businesses and the establishment of newly built operating facilities.

In 2001, Polynt acquired Lonza Compounds Verwaltungs and Lonza GmbH, two companies based in Miehlen (Germany).

In 2006, a company in Poland was set up and the construction of an operating site near Krakow for the production of Polyester Resins and Compounds commenced.

In 2006, Lonza S.p.A. changed its name to Polynt S.p.A. On 30 October of the same year, the Company’s shares were listed on the STAR segment of the Italian Stock Exchange.

In March 2007, Polynt Chemical (Changzhou) Co. Ltd. was set up in the Chinese province of Jiangsu. In June of the same year, this company acquired a company active in the production and sale of Trimellitic Anhydride.

In the same year, a Special Plasticizers business managed through a commercial branch in Hong Kong was acquired.

Over the following years, Polynt built two new production plants in China dedicated to the production of Special Plasticizers and Special Anhydrides.

In 2008, following a takeover bid, Polynt was taken over by Specialty Polymers S.p.A. , indirectly controlled by InvestIndustrial, a leading European private equity funds.

In the same year, the Company was delisted from the Milan Stock Exchange after its shares rose by 104%, compared to the initial price quotation.

In August 2008, Polynt acquired 100% of Chemial Group SpA, a leader in the field of specialty chemicals for the food, feed and fragrances sectors and operating through its two companies in England and Italy.

In September 2008, the merger of Polynt S.p.A. into Polimeri Speciali SpA became effective.

Polimeri Speciali changed its name to Polynt S.p.A Polimeri

In 2011, the majority shareholder of Polynt, now called Polynt Group Sarl, acquired a business in the United States from Momentive Specialty Chemicals Inc. operating in the field of Composites and Resins for paints with four manufacturing sites in the U.S.

Polynt S.p.A. benefits from the collaboration with this company, in which it later acquired a minority stake.

In 2012, Polynt France Sarl began to operate. The company, based in Lyon, markets and sells the Group’s products on the French market.

In 2013, Polynt Iberica SL is set up to manage, through its office in Barcelona, the marketing and sale of the Group’s products on the Spanish and Portuguese markets.

In December 2014, the Group completed the acquisition from Total S.A. of the companies belonging to CCP Composites Division operating in the unsaturated polyester resin industry, gelcoats and vinyl, with 26 locations in Europe, America, Asia and Australia with approximately 800 employees.

In May 2017 was announced the closing of the combination Polynt-Reichhold.
The new Group is a global company operating in the Intermediates, Coating and Composite Resins, Thermoset Compounds, Gel-coats and niche Specialties.

Polynt is now a leader in specialty market niches and is ideally positioned to benefit from the expected growth in the target markets.


Unsaturated polyester resins are thermosetting resins produced by a polyesterification reaction between dicarboxylic acids (unsaturated and saturated) and glycols. The final preparation is obtained by dissolving the alkyd (a solid polymer at room temperature) in an unsaturated, reactive solvent, with reference to the cross-linking reaction, usually styrene.

The cross-linking reaction obtained by adding an organic peroxide that acts as a cross-linking initiator leads to the formation of complex three-dimensional structures that generate a solid state and an irreversible structure.

Polynt produces numerous dioxides (phthalic and maleic acid) and bicarboxylic acids (fumaric acid) used for the synthesis of polyester resins in the company: these raw materials associated with the high formulation knowledge matured over the years have allowed the development of numerous families of resins.

Polynt Composites


Composite materials have the following characteristics:

  • they consist of two or more materials of different kinds;
  • almost two of these materials have different physical properties “sufficiently” different from one another, to impart different properties to the composite frome those of the constituents.

To obtain a composite with high mechanical resistance is essential, in addition to the use of fiber-resistant, ensurging good adhesion between the matrix and the reinforcement.

The reinforcements used in polymer matrix composites are glass, carbon and fibers.

There are several production process of composite materials. The most popular are:

  1. manual drafting
  2. resin transfer molding (RTM)
  3. filament winding
  4. pultrusion
  5. vacuum infusion
  6. centrifugal casting
  7. SMC / BMC molding
  8. autoclave molding