ALKOXYSILANE POLYSULPHIDE

The invention relates to an alkoxysilane polysulphide, of formula (I): wherein: R1, identical or different, are each a monovalent hydrocarbon group having 1 to 18 carbon atoms; R2, identical or different, are each a monovalent hydrocarbon group having 1 to 4 carbon atoms; R3, identical or different, are each a a monovalent hydrocarbon group having 1 to 12 carbon atoms; preferably 1 to 6 carbon atoms; Z, identical or different, are each a divalent hydrocarbon bonding group including 1 to 16 carbon atoms; x is an integer or fraction no lower than 2; and n is an integer equal to 0, 1 or 2. (R3O)3-n(R1)nSi-CH2-(R2)CH-Z-Sx-Z-HC(R2)-CH2-Si(R1)n(OR3)3-n(I). 本发明涉及烷氧基硅烷多硫化物，其具有式(I)：其中：R，相同或不同，各自为具有1至18个碳原子的一价烃基；R，相同或不同，各自为具有1至4个碳原子的一价烃基；R，相同或不同，各自为具有1至12个碳原子，优选1至6个碳原子的一价烃基；Z，相同或不同，各自为包含1至16个碳原子的二价烃键合基团；x为不小于2的整数或分数；并且n为等于0、1或2的整数。(RO)(R)Si-CH-(R)CH-Z-S-Z-HC(R)-CH-Si(R)(OR)(I)。