Soprema

Centre National De La Recherche Scientifique

UniversitÉde Strasbourg

Tereos Starch & Sweeteners Belgium

Société Soprema Sas

Remi Perrin

Pierre Etienne Bindschedler

Pierre-Etienne Bindschedler

Louis Durot

Virginie Francois Barseghian

Andreas Redl

Alexandru Sarbu

Luc Avérous

Pierre Furtwengler

Stephanie Laurichesse

Corinne Schall

Arnaud Nouri

Abdelaziz Bentaj

Christine Robach

Gauthier Demaret

Florent Dalmas

Herve Fellman

Francois Olard

Raissa Gallu

Jean-Pierre (deceased) Pascault

Frederic Loup

Luc Averous

Alice Arbenz

Jean-Francois Gerard

A polyester polyol of formula produced by a first polycondensation (a) of a sugar alcohol Z in C3 to C8 and two diacids Y and Y' which are the same or different in C4 to C36, and a second polycondensation (b) of the product produced in (a) with two diols X and X&#x2032; which are the same or different in C2 to C12, the polymer including such a polyester polyol. Also, a method for producing the polyester polyols and the use thereof in foams, adhesives, coatings or elastomers of polyurethane or polyisocyanurate.

Method for producing polyester polyols and use thereof in polyurethane

A rigid foam or a composition allowing a rigid foam to be obtained, including a polyester polyol or a polymer including a polyester polyol, the polyester polyol being obtained by a first polycondensation (a) of a C3 to C8 sugar alcohol Z and two identical or different C4 to C36 diacids Y and Y' and a second polycondensation (b) of the product obtained in (a) with two identical or different C2 to C12 diols X and X&#x2032;.

Rigid foam comprising a polyester polyol

The present invention relates to a polymerisable plasticiser formed by a hydrocarbon chain, one end of which bears more than one isocyanate function, said hydrocarbon chain comprising and/or being substituted by an aromatic ring and/or an aliphatic ring and/or said hydrocarbon chain is substituted by at least two hydrocarbon chains that can comprise an unsaturation, and the number of isocyanate functions being strictly greater than 1, preferably greater than 1.2, and, more preferably, grater than 1.5 but less than or equal to 2.2. The invention also relates to liquid polyurethane resin compositions and, in particular, stable, ready-to-use liquid polyurethane resin compositions comprising said plasticiser. The invention further relates to methods for replacing all or part of the exogenous plasticiser and/or solvent in a polyurethane resin by adding said polymerisable plasticiser.

Polymerisable plasticiser, liquid polyurethane resin composition comprising same and uses thereof

The invention relates to polyurethane resin compositions and, in particular, stable, ready-to-use polyurethane resin compositions comprising: a masked polyisocyanate having formula (I), wherein B represents alkyl and A represents a group comprising a number of isocyanate functions of between 1.5 and 2.2, preferably between 1.5 and 2.1 and, more preferably, between 1.5 and 2; or a masked pre-polymer that is the product of a reaction between the above-mentioned masked polyisocyanate and a polyol having between 1.5 and 3 OH functions and a molecular mass of between 900 and 3,000 g/mol, in a ratio such that the number of NCO functions of the masked polyisocyanate in relation to the number of OH functions of the polyol is between 1.5 and 2.5 approximately; or a mixture of the aforementioned masked polyisocyanate and masked pre-polymer. The invention also relates to the use of the masked polyisocyanate in order to form a masked pre-polymer by reacting said masked polyisocyanate on a polyol, and to the use of a masked polyisocyanate and/or a masked pre-polymer in polyurethane resin compositions. 

Masked polyisocyanate and uses thereof

A polyurethane resin composition comprising a prepolymer and a polymerizable plasticizer, and which may also comprise at least one constituent chosen from the group comprising:

Stable, ready-to-use liquid polyurethane resin composition and uses thereof

The present invention has for its object a prefabricated sealing membrane formed by a support, coated on at least one surface, and preferably impregnated throughout, with a modified bitumen base composition, characterized in that the thermoplastic bituminous composition for coating and/or impregnation is a bituminous binder modified by a thermoplastic polyurethane having the following weight proportion:

Prefabricated membrane based on modified polyurethane bituminous binder and process for production

A waterproofing UV-resistant bituminous membrane, a system incorporating such a membrane, and a manufacturing process are disclosed. In a particular embodiment, a UV-resistant waterproofing membrane includes a mass of at least one bituminous composition, formed in at least one continuous layer, and of at least one ply of filamentous or fibrous material, embedded in the mass. The membrane is characterized in that the at least present bituminous composition consists of a bituminous mixture based principally on bitumen, SBS elastomeric polymer and mineral fillers and in that said at least one ply () consists of a fine web, of open-work structure, with no preferred direction of stress resistance and formed of filaments and/or fibers in a material that is preferably resistant to UV, said web () being embedded in the mass () of bituminous composition(s) while being situated next to the face () designed to be visible or exposed, after laying said membrane ().

Waterproofing UV-resistant bituminous membrane, system incorporating such a membrane, and manufacturing process

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Bischoffsheim, France

Remi Perrin