摘要:
The invention relates to a two part epoxy adhesive system, including: a composition (A) including 15 to 50% of a curable bisphenol A epoxy resin; 0.5 to 40% of an alkaline earth metal oxide or hydroxide; and 30 to 80% of an inert filler; and a composition (B) including: 15 to 50% of a polymercaptan obtained by the esterification of mercaptoacetic or mercaptopropionic acid with a polyol including 3 to 6 carbon atoms, and/or a polymercaptan obtained by the effect of hydrogen sulfide on a polyoxyalkylene polyglycidyl ether; and 50 to 85% of an inert filler. The weight ratio of composition (A)/composition (B) of said system corresponding to an epoxy group mole number/mercaptan group mole number ratio is between 0.95 and 2.5. The invention also relates to the use of said system as a glue for attachment or repair.
摘要:
1) Composition adhésive thermofusible sensible à la pression (HMPSA) comprenant : - a) de 25 à 50 % d'un ou plusieurs copolymères blocs styréniques SBS, SIS, SIBS, SEBS ou SEPS ; - b) de 35 à 75 % d'une ou plusieurs résines tackifiantes compatibles liquides ou ayant une température de ramollissement inférieure à 150 °C ; - c) de 1 à 20 % d'un ou plusieurs polymères supramoléculaires obtenus par réaction entre la 1-(2-aminoéthyl)-2-imidazolidone et une composition d'acides gras comprenant de 51 à 100 % d'un ou plusieurs dimères et/ou trimères d'acides gras et de 0 à 49 % d'un ou plusieurs monomères d'acides gras. 2) Système multicouche comprenant une couche d'adhésif constituée de l'HMPSA, une couche support imprimable adjacente, constituée de papier ou de film polymère et une couche protectrice adjacente à ladite couche d'adhésif. 3) Etiquette auto-adhésive correspondante.
摘要:
A HMPSA is provided that preferably includes at least a) from 30 to 50% of a mixture of triblock and diblock styrenic copolymers having an overall styrene content comprised between 14 and 40%, b) from 40 to 55% of a tackifying resin with a softening temperature comprised between 70 and 150° C. obtainable by hydrogenating, polymerizing or copolymerizing mixtures of aliphatic unsaturated hydrocarbons having about 5, 9 or 10 carbon atoms; c) from 4 to 20% of a hydrocarbon oil with an aromatic content less than 15%; d) from 1 to 6% of a filler selected among calcium carbonate or a low molecular weight homopolymer or copolymer of polyethylene. A laminated system is also provided that includes at least an adhesive layer utilizing the HMPSA and paper facestock. Also included are PSA labels obtainable from the laminated system with a reduced tendency to discolor after storage.
摘要:
1) Composition adhésive comprenant: - de 58 à 80 % d'un polymère (A) à radical terminal alkoxysilane réticulable à l'humidité ; - de 8 à 20 % d'une silice (B) ayant une surface spécifique BET comprise entre 150 et 250 m 2 /g; - de 4 à 15 % d'un oligomère (C) de masse molaire comprise entre 500 et 5000 Da et susceptible d'être obtenu par oligomérisation d'un dérivé vinylique d'un alkoxy alkyl silane ; et - de 0,01 à 3 % d'un catalyseur de réticulation (D). 2) Procédé de fixation d'un objet sur un substrat compris dans les sols, parois verticales et/ou plafonds des habitations, comprenant la mise en oeuvre de la composition adhésive ci-dessus et procédé de séparation de l'objet ainsi fixé par rupture adhésive.
摘要:
The invention describes self-levelling, anhydrous coating materials on floor surfaces, consisting of silane-modified polyethers, preferably methoxyalkylsilane-terminated polyoxypropylenes, calcium carbonate powder, drying agent, curing catalyst, adhesion promoter and optionally further additives and/or fillers. The moisture-curing coating materials obtained, preferably used on cement- or calcium sulphate-bound floor surfaces, are distinguished by good adhesion, high sound insulation, a barrier effect against rising moisture and excellent surface planarity, as are desired for the laying of hard floors, in particular laminate or parquet boards.
摘要:
Process for caulking a ship deck, which comprises :
a) bonding planks of tropical wood on the subdeck of said ship, b) sealing said planks through the application of a moisture curable sealing composition, then c) allowing said composition to cure during an effective period of time, characterized in that said moisture curable sealing composition comprises one or more silyl-modified polyacrylate(s).