摘要:
A bis[tri(hydroxypolyalkyleneoxy)silylalkyl] polysulfide, i.e., a polysulfide that contains bonded hydroxypolyalkyleneoxy groups instead of alkoxy groups in the bis(trialkoxysilylalkyl) polysulfide; a method of manufacturing of the aforementioned polysulfide by heating a bis(trialkoxysilylalkyl) polysulfide and a polyalkyleneglycol; a tire rubber additive to a tire rubber composition that comprises a bis[tri(hydroxypolyalkyleneoxy)silylalkyl] polysulfide alone or a mixture of bis[tri(hydroxypolyalkyleneoxy)silylalkyl] polysulfide and a polyalkyleneglycol; and a tire rubber composition that contains the aforementioned additive.
摘要:
A method for manufacturing a bis(silatranylalkyl) polysulfide by heating a bis(trialkoxysilylalkyl) polysulfide and triethanolamine in the presence of a catalytic quantity of an alkali-metal alcoholate, thus substituting all Si-bonded alkoxy groups of the bis(trialkoxysilylalkyl) polysulfide with a (OCH2CH2)3N group; a method for the preparation of a mixture of a bis(silatranylalkyl) polysulfide and a (silatranyalkyl) (trialkoxysilyl) disulfide or a mixture of a bis(silatranylalkyl) polysulfide, a (silatranylalkyl) (trialkoxysilyl) disulfide, and a bis(trialkoxysilylalkyl) polysulfide by heating a bis(trialkoxysilylalkyl) polysulfide and triethanolamine in the presence of a catalytic quantity of an alkali-metal alcoholate, thus substituting a part of Si-bonded alkoxy groups of the bis(trialkoxysilylalkyl) polysulfide with a (OCH2CH2)3N group; a mixture of a bis(silatranylalkyl) polysulfide and a (silatranylalkyl) (trialkoxysilyl) disulfide; a mixture of a bis(silatranylalkyl) polysulfide, a (silatranylalkyl) (trialkoxysilyl) disulfide, and a bis(trialkoxysilylalkyl) polysulfide; and a rubber composition containing the aforementioned mixture.
摘要:
An organic silicon compound represented by the following general formula: ClCH2CH(CF3)COOR3Si(R1)n(R2)3-n (wherein, R1 independently designates the same or different substituted or unsubstituted hydrocarbon groups having 1 to 20 carbon atoms, R2 independently designates the same or different groups selected from halogen groups or hydrolysable groups having 1 to 20 carbon atoms, R3 designates substituted or unsubstituted alkylene groups having 1 to 20 carbon atoms, and 'n' is an integer from 0 to 3). The organic silicon compound is suitable for use as a preferable precursor in the manufacture of silanes that contain (2-trifluoromethylacryloxy) alkyl groups.
摘要:
The present invention relates to a compound represented by the following general formula (I):
wherein R 1 and R 2 independently represent a monovalent hydrocarbon group; R 3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; X represents a divalent hydrocarbon group; and R 4 , R 5 and R 6 independently represent a monovalent organic group or a group represented by the following general formula (II):
in which R 7 and R 8 independently represent a monovalent hydrocarbon group; and R 9 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, with the proviso that R 5 and R 6 may combine together to form a divalent hydrocarbon group. The aforementioned compounds are useful as a polymerization inhibitor and the like.