摘要:
The present invention relates to a composition comprising: (a) at least one halogenated vinyl polymer and (b) at least one copolymer containing (i) units derived from a first monomer (A) rendering said copolymer compatible with said halogenated vinyl polymer and (ii) units derived from a second monomer (B) bearing at least one given associative group. The present invention also relates to the use of such a copolymer bearing associative groups, for improving certain properties of a halogenated vinyl polymer. The invention finally relates to the uses of the aforementioned composition.
摘要:
The present invention relates to a method of preparing a material formed from branched molecules comprising associative groups that includes the following successive steps: (a) the reaction of at least one at least trifunctional compound (A) bearing first and second functional groups with at least one bifunctional compound (B), the functional groups of which are capable of reacting with the first functional groups of the compound (A); and (b) the reaction of the compound(s) obtained in step (a) with at least one compound (C) bearing, on the one hand, at least one reactive group capable of reacting with the second functional groups of (A) and, on the other hand, at least one given associative group.
摘要:
The invention relates to a supramolecular polymer obtained from the reaction of (i) an amine bearing a nitrogen-containing heterocyclic group: imidazolidone, trimethyleneurea or triazine, which is capable of associating by means of hydrogen bonds, and (ii) at least one fatty acid monomer comprising at least one reactive function, a dimer of identical or different fatty acids and/or a trimer of identical or different fatty acids, or a derivative of said fatty acid(s) which is selected from a fatty acid ester and a fatty acid chloride.
摘要:
The present invention relates to novel supramolecular materials made of straight or branched oligoamides, terminated at each of the ends thereof by an associative group including a nitrogen heterocycle supported by a specific sequence. The invention also relates to the method for preparing said materials, as well as to the uses thereof.
摘要:
The present invention relates to a hot-melt adhesive that comprises a block copolymer having associative groups containing a nitrogen heterocyclic compound. The invention also relates to block copolymers having associative groups specifically adapted for implementation in a hot-melt adhesive.
摘要:
The invention concerns a polymer material consisting of macromolecular chains bound by hydrogen bonds wherein: the macromolecular chains consist of a polymer skeleton whereon is fixed by at least one covalent bond a modifying agent, the modifying agent comprising, assembled in a common molecule, one or more associative groups capable of being bound by hydrogen bonds and one or more reactive groups capable of forming covalent bonds with the polymer skeleton, at least one of the associative groups of the modifying agent is an imidazolidone heterocycle, the macromolecular chains bear on average 1 to 10 imidazolidone groups per chain. The average number of imidazolidone groups to be introduced into the macromolecular chains depends both on the average mass of said chains and the final properties desired for the material. The inventive polymer material can be extruded, co-extruded, injected, blown, moulded, overmoulded, calandered, thermoformed. It can be used to produce articles such as tubes, films, plates, extruded strings, bottles, containers. The inventive polymer material can also be mixed with other materials such as other polymers, thus it is used for example as impact modifier or rheology regulator. The invention further concerns the use of said polymer material as compatibility agent in a composition comprising among others at least two polymers belonging to different classes of polymers.
摘要:
The present invention relates to a composition comprising: (a) at least one halogenated vinyl polymer and (b) at least one copolymer containing (i) units derived from a first monomer (A) rendering said copolymer compatible with said halogenated vinyl polymer and (ii) units derived from a second monomer (B) bearing at least one given associative group. The present invention also relates to the use of such a copolymer bearing associative groups, for improving certain properties of a halogenated vinyl polymer. The invention finally relates to the uses of the aforementioned composition.
摘要:
Thermoset/supramolecular hybrid composites and resins, resulting from bringing at least one thermosetting resin precursor, this thermosetting resin precursor comprising hydroxyl functions and/or epoxy groups, and optionally ester functions, into contact with at least one hardener chosen from carboxylic acids and acid anhydrides, and with at least one compound comprising, on the one hand, at least one associative group, and on the other hand at least one function enabling the grafting thereof to the thermosetting resin precursor, to the hardener or to the product resulting from the reaction of the thermosetting resin precursor and the hardener, in the presence of at least one transesterification catalyst. Process for manufacturing these materials, process for transforming and process for recycling these materials. Novel solid forms of hybrid composites and resins which can be used in the implementation of these processes.