Actinic radiation-curable compositions containing polythiols and urethane/urea-containing polyalkenyl prepolymers that can be used for aerospace coatings and sealants. The coatings can be applied to surfaces and rapidly cured.

Provided is a polymerizable composition for an optical material including: a polyisocyanate component which includes 1,4-bis(isocyanatomethyl)cyclohexane; a polyol component which includes a diol compound having a molecular weight of 400 or more and having two or more hydroxyl groups; and a polythiol component which includes a polythiol compound having two or more mercapto groups.

Provided is a polymerizable composition for an optical material including: a polyisocyanate component which includes 1,4-bis(isocyanatomethyl)cyclohexane; a polyol component which includes a diol compound having a molecular weight of 400 or more and having two or more hydroxyl groups; and a polythiol component which includes a polythiol compound having two or more mercapto groups.

An embodiment relates to a polymeric composition for a polythiourethane-based optical material, wherein the polymeric composition, comprising a particular additive, may appropriately adjust the reactivity of an isocyanate such that viscosity is maintained low for a predetermined period of time, and thus is capable of preparing a high-quality polythiourethane-based optical material, without a complicated purification process. Moreover, a polythiourethane-based optical material according to an embodiment has not only a uniform refractive index, but also a low yellow index, and thus may be used as a variety of plastic optical lenses, such as an eyeglass lens or a camera lens and the like.

An embodiment relates to a polymeric composition for a polythiourethane-based optical material, wherein the polymeric composition, comprising a particular additive, may appropriately adjust the reactivity of an isocyanate such that viscosity is maintained low for a predetermined period of time, and thus is capable of preparing a high-quality polythiourethane-based optical material, without a complicated purification process. Moreover, a polythiourethane-based optical material according to an embodiment has not only a uniform refractive index, but also a low yellow index, and thus may be used as a variety of plastic optical lenses, such as an eyeglass lens or a camera lens and the like.

An amino silicone oil-modified elastomer material includes Component A and Component R. Component A includes isocyanate prepolymer obtained through reaction of polyol and isocyanate, and the isocyanate prepolymer has a NCO content of 22-30%; Component R includes the following components in parts by weight: 45-60 parts of polyether amine, 1-6 parts of liquid amine chain extender, 1-10 parts of polysulfide rubber, 2-8 parts of nano silica, and 3-8 parts of amino silicone oil. The elastomer material of the invention ensures the elasticity of the polymer while improving mechanical properties. Moreover, it can improve elongation, wear resistance and water resistance of the polyurea material.

An amino silicone oil-modified elastomer material includes Component A and Component R. Component A includes isocyanate prepolymer obtained through reaction of polyol and isocyanate, and the isocyanate prepolymer has a NCO content of 22-30%; Component R includes the following components in parts by weight: 45-60 parts of polyether amine, 1-6 parts of liquid amine chain extender, 1-10 parts of polysulfide rubber, 2-8 parts of nano silica, and 3-8 parts of amino silicone oil. The elastomer material of the invention ensures the elasticity of the polymer while improving mechanical properties. Moreover, it can improve elongation, wear resistance and water resistance of the polyurea material.

Isocyanate-terminated chain-extended polythioether prepolymers, compositions thereof, and methods of use thereof are disclosed. The isocyanate-terminated chain-extended polythioether prepolymers are useful in sprayable coatings and sealants and especially sprayable coatings and sealants having a high filler content.

Actinic radiation-curable compositions containing polythiols and urethane/urea-containing polyalkenyl prepolymers that can be used for aerospace coatings and sealants. The coatings can be applied to surfaces and rapidly cured.

Actinic radiation-curable compositions containing polythiols and urethane/urea-containing polyalkenyl prepolymers that can be used for aerospace coatings and sealants. The coatings can be applied to surfaces and rapidly cured.