摘要:
The invention relates to compositions comprising a curable polymer and at least one silane compound having at least one hydrolysable group and at least one heteroatom bridged to a silicon atom via a sp 2 -hybridized quaternary carbon atom, as defined herein, and the use of such compositions.
摘要:
The present invention relates to radiation of dual radiation/moisture curable compositions based on (meth)acrylate- and silane-terminated polymers that can be used as 3D printing materials and provide isotropic and elastomeric properties. The invention further relates to the use thereof as 3D printing materials and printing methods using said compositions.
摘要:
A two part curable composition comprising organosiloxane polymer; water; an organosilane such as hexamethyldisilazane (HMDS) or vinyltrimethoxysilane; crosslinker; adhesion promoter and catalyst; and optionally comprising plasticizer; colorant and filler. The first part can comprise organosiloxane polymer and water. The second part can comprise crosslinker; adhesion promoter and catalyst. Either or both parts can optionally further comprise an organosilane such as hexamethyldisilazane (HMDS) or vinyltrimethoxysilane; plasticizer; colorant and filler. The mixed parts have a low viscosity allowing injection under low pressure. Cured reaction products of the two part curable organosiloxane composition has good adhesion to metallic sealing surfaces and good resistance engine oil and other automotive fluids. Cured reaction products of the two part curable organosiloxane composition can surprisingly retain physical properties after long-term exposure to temperatures between 200° C. and 250° C. and can retain physical properties after exposure to temperatures between 250° C. to 300° C. for short periods.
摘要:
The invention relates to polyorganosiloxanes with special silicon-containing groups of the general formula (1) as defined herein, a method for preparing said polyorganosiloxanes, and curable compositions comprising at least one said polyorganosiloxane, at least one adhesion promoter, and at least one curing catalyst. The invention also relates to adhesive, sealant, or coating materials comprising the curable composition and the use of the curable composition.
摘要:
The present invention relates to radiation or dual radiation/moisture curable compositions based on (meth)acrylate- and silane-terminated polyorganosiloxanes that can be used as 3D printing materials and provide isotropic and elastomeric properties. The invention further relates to the use thereof as 3D printing materials and printing methods using said compositions.