摘要:
The invention relates to an adhesive composition that can be activated at a low temperature (from 110° C., preferably from 100° C.) and is available in the form of a film, and to the method for the production thereof. The invention also relates to a composition comprising at least one specific polyester polyol and at least one specific polyisocyanate dispersible in said polyester polyol in the presence of at least one specific organic solvent, and to the use of said composition for producing an adhesive composition that can be activated at a low temperature and is available in the form of a film.
摘要:
Hydrocarbon-based polymer of formula (1) bearing alkoxysilane end groups: in which: is a double or single bond; each of R2, R3, R4 and R5 is H, a halo, an alkoxycarbonyl or an alkyl, m and p are each from 0 to 5, each of R and R′ is an alkyl, Z is an alkylene, optionally interrupted with COO, q is 0 or 1, r is 0, 1 or 2, and n is an integer such that the number-average molar mass Mn of the polymer is from 400 to 50 000 g/mol, and its polydispersity index (PDI) is from 1.0 to 2.0. Preparation by ring-opening metathesis polymerization for 2 hours to 24 hours. Adhesive composition comprising polymer (1) and crosslinking catalyst. Bonding by assembly of two substrates using this adhesive composition.
摘要:
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 (—NH2) groups (B1).3) Process for assembling materials employing the polyurethane prepolymer (PP2) according to the invention.
摘要:
A polymer of formula (I): in which P is a divalent polymeric radical other than a polyoxypropylene radical; m is a number from 1 to 6; B is a monovalent, divalent, trivalent, tetravalent, pentavalent or hexavalent radical, having from 1 to 44 carbon atoms per molecule; the divalent polymeric radical P being such that the number-average molar mass Mn of the polymer of formula (I) is in a range from 400 to 8000 g/mol and such that the polydispersity (Pd) of the polymer of formula (I) is within a range from 1.0 to 4.0.Process for preparing the polymer of formula (I).Process for preparing polyurethanes, by reaction of a polymer of formula (I) with a compound, having an amine group, and also polyurethanes that may be thus obtained.