摘要:
The invention concerns a rubber tyre composition made from at least one diene elastomer, an inorganic filler as a reinforcing filler, a coupling agent linking the inorganic filler and the diene elastomer, characterised in that the coupling agent is an azo-silane compound of the following formula (I): (G 1 ) 3-a (G 2 ) a Si-Z-NH-C(O)-N=N-G4 (I) in which: - G 1 , identical or different, each represent a monovalent hydrocarbon group chosen from the linear or branched, substituted or unsubstituted alkyls having 1 to 18 carbon atoms, the substituted or unsubstituted cycloalkyls or aryls having from 5 to 18 carbon atoms, - G 2 , identical or different, each represent a hydroxyl group or a monovalent group in the form (G 3 ) n -OG 1 , in which G 3 is a divalent linking group comprising 1 to 18 carbon atoms and containing one or more heteroatoms chosen from O, S, Si and N, and n is a number greater than or equal to 0 and less than or equal to 18, - G 4 represents an aromatic or heteroaromatic, substituted or unsubstituted group, or a substituted or unsubstituted alkyl group, - Z represents a divalent linking group comprising 1 to 18 carbon atoms, - a is equal to 1, 2 or 3.
摘要:
The current invention relates to a moisture-hardening composition that contains, in addition to a silane-functional polymer with end groups of formula (I), a reaction product that can be manufactured from an amino silane with primary amino groups and an alkene that is free of silane groups. The compositions are characterized by improved expandability with concurrent high reactivity, good adhesion characteristics, and high tear strength and are suited especially for use as elastic bonding substance or sealant.
摘要:
The invention relates to compounds on the basis of organosilic compounds, which can be crosslinked at room temperature, so-called RTV-1 compounds, and which are characterized by containing as the catalyst at least one organozinc compound (C) that contains moieties of the general formula (I): RaR1b(XR3)cSnX¿(4-a-b-c)/2?, and compounds (D) that contain basic nitrogen, wherein R?1¿ is the same or different and represents -OS(=O)¿2R?2, and R, X, R2, R3, a, b and c are defined as in claim 1, with the proviso that the organozinc compound comprises at least one R1 group. The invention further relates to a method for producing the inventive compounds.
摘要:
The invention relates first to compounds consisting essentially of a functionalised organosilane of formula (R1O)a(R2)3-aSiZ, wherein R?1 and R2¿ are monovalent hydrocarbonated groups, a is a number chosen from 1, 2 and 3 and Z is a function containing an activated ethylenic double bond, chosen from the following:an ester-maleamic function and/or an ester-fumaramic function. The invention also relates to methods for producing said compounds, and to their use as white filler-elastomer coupling agents in rubber compositions containing a white filler, especially a siliceous white filler, as a reinforcing filler.
摘要:
A room temperature vulcanizable silicone rubber composition with very low modulus comprising a silanol end-stopped diorganopolysiloxane, a di-functional acetamide coupler and as the cross-linker, a minor amount of compound selected from ketoxime functional silanes and aminoxy functional silanes and mixtures thereof.