Bostik Sa

Centre National De La Recherche Scientifique

Université De Rennes 1

Université De Rennes I

Frederic Simon

Guillaume Michaud

Stephane Fouquay

Sophie Guillaume

Cyril Chauveau

Abdou Khadri Diallo

Marjorie Pereira

Elise Vanbiervliet

Olivier Lavastre

Boris Colin

Liana Annunziata

Jean Francois Carpentier

1) Hydrocarbon-based copolymer comprising two end groups preceded by an ester function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, an exo-vinylene cyclocarbonate and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II)  in which Ris notably a methyl radical; and the number-average molecular mass Mn of which is between 400 and 100 000 g/mol. 2) Process for preparing said copolymer, comprising: (i) a step of heating a statistical bipolymer A chosen from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and then (ii) a step of heating the product formed, in the presence of a chain-transfer agent. 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.

Liquid hydrocarbon-based copolymers bearing two cyclocarbonate ester end groups

1) Hydrocarbon-based copolymer comprising two end groups preceded by an ether function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II)  2) Process for preparing said copolymer, comprising: 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.

Liquid hydrocarbon copolymers having two cyclocarbonate ether end groups

The present invention provides a curable adhesive composition comprising at least one curable silylated polymer and at least one curing catalyst obtained by reaction of a metal alkoxide and an oxime. The present invention also provides the use of a metal compound obtained by reaction of a metal alkoxide and an oxime as curing catalyst for silylated polymers.

Cross-linkable silylated polymer-based adhesive compositions

Polymer of formula (1) bearing an alkoxysilane end group:  Preparation by ring-opening metathesis polymerization. Use as an adhesion promoter or a reactive plasticizer.

Hydrocarbon-based polymers bearing an alkoxysilane end group

1) Specific polyurethane prepolymer (PP2) comprising at least two terminal (2-oxo-1,3-dioxolan-4-yl)methyl carbamate groups of low viscosity, its preparation process and its use in the manufacture of an adhesive composition. 2) Multicomponent system comprising, as first component (A), a composition comprising at least one such polyurethane prepolymer and, as second component (B), a composition comprising at least one curing agent comprising at least two primary amine (&#x2014;NH) groups (B1). 3) Process for assembling materials employing the polyurethane prepolymer (PP2) according to the invention.

Low-viscosity polyurethane prepolymer with cyclic carbonate end groups and the use thereof in the production of a multi-component adhesive composition

The present invention relates to a heat- and moisture-crosslinkable adhesive composition comprising: The present invention also relates to a method of preparing said adhesive composition, a self-adhesive support coated with the crosslinked adhesive composition and the use of said support for making labels and/or self-adhesive tapes.

Moisture- and heat-crosslinkable polyurethane-based adhesive composition comprising a low content of isocyanate monomer

Hydrocarbon-based polymer of formula (1) bearing alkoxysilane end groups: 

Hydrocarbon-based polymers bearing two alkoxysilane end groups

1) Specific polyurethane prepolymer (PP2) comprising at least two terminal (2-oxo-1,3-dioxolan-4-yl)methyl carbamate groups of low viscosity, its preparation process and its use in the manufacture of an adhesive composition. 2) Multicomponent system comprising, as first component (A), a composition comprising at least one such polyurethane prepolymer and, as second component (B), a composition comprising at least one curing agent having at least two primary amine (&#x2014;NH) groups (B1). 3) Process for assembling materials employing the polyurethane prepolymer (PP2) according to the invention.

Polyurethane prepolymer with cyclocarbonate end groups of low viscosity and the use thereof in the production of a multi-component adhesive composition

1) Hydrocarbon-based polymer of formula (I):  

Hydrocarbon-based polymers bearing dithiocyclocarbonate end groups

1) Hydrocarbon polymer having two azlactone end groups Fis formula (IIa) and Fis formula (IIb): 

Hydrocarbon polymers having two azlactone end groups

Process for the preparation of a hydrocarbon polymer comprising two end groups having 2-oxo-1,3-dioxolan-4-yl final parts by ring opening metathesis in the presence of a metathesis catalyst, of a chain transfer agent comprising a carbonate ring and of a compound of formula comprising at least one C-Cring having a carbon-carbon double bond. Hydrocarbon polymer capable of being obtained by this process. Process for the preparation of polyurethanes by reaction of this polymer and of a compound comprising at least one amine group, and polyurethanes thus obtained.

Growing community of inventors

Pont l'Eveque, France

Frederic Simon