摘要:
The invention relates to a process for encapsulating a flexible electronic device mounted on a substrate, with at least one sheet that protects against orthogonal gas permeation, by means of an adhesive that protects against lateral gas permeation, the process comprising: a step of applying a precursor of the adhesive that protects against lateral gas permeation, to the surface of the device and/or of the substrate and/or to the surface of the flexible gas-protection sheet, the adhesive precursor comprising at least one pressure-sensitive acrylic block copolymer diluted in a solvent, a step of evaporating the solvent, a step of laminating the adhesive precursor inserted between the substrate and the protective sheet via which the adhesive that protects against lateral gas permeation is obtained.
摘要:
The present invention pertains to the field of thermosetting or thermoset polymers mainly used as materials, coatings, or adhesives. The invention more specifically relates to the use of specific molecules having associative groups including a nitrogen heterocycle as a hardener or co-hardener of thermosetting polymers.
摘要:
The invention relates to an elastomer material including flexible polymer chains combined therebetween with permanent crosslinking bridges having covalent bonds as well as with crosslinking bridges having non-covalent bonds. The invention also relates to a method for preparing such a material.
摘要:
The subject of the invention is the use of a grafted copolymer derived from the grafting : - of an SMA copolymer (ll) derived from the copolymerisation of at least two monomers, (i) the first monomer being chosen from styrene and its derivatives and (ii) the second monomer including at least one anhydride function, - with either (iii) M-R-X molecules (l) including at least one pattern (M) chosen from patterns (1) to (4): formula (l), with A = oxygen, sulphur or NH; and including at least one chemical function (X) chosen from among halogen, a primary or secondary amino function, an alcohol function, a thiol function, a carboxylic acid function or a derivative of said function and an epoxy function, the pattern (M) and said function (X) being connected by a rigid or flexible chain (R); namely (iv) molecules belonging to the family of triazols; used as the majority composition or additive in liquid compositions intended to be applied in or on sheets of paper or cardboard, on hard surfaces, on leather or on textiles.