Abstract:
High viscosity silicone compositions such as silicone gums, silicone rubbers, silicone elastomers, and silicone resins, are emulsified by mechanical inversion in which silicone water-in-oil (W/O) emulsions are inverted to silicone oil-in-water (O/W) emulsions. Silicone resins with a viscosity of about one billion centistoke (mm /s), i.e., 1,000,000,000 centistoke (mm /s) have been emulsified. These silicone O/W emulsions are useful in personal care products where they are capable of providing improved aesthetics. They are also useful in products used in the paper industry and medical industry. The silicone O/W emulsions are easier to handle than the high viscosity silicone in the emulsion, which enables the emulsions to mixed with other emulsions or other water-soluble ingredients.
Abstract:
A curable coating composition comprises:(A) a water continuous emulsion comprising a curable elastomeric polymer having a viscosity of 0.5-1,000,000 KPa-s and a glass transition temperature up to 50° C.;(B) an aqueous polyurethane dispersion; and optionally,(C) a cure agent.Methods for preparing the curable coating compositions are also disclosed. The curable coating composition and the cured coatings derived from the reaction product of this composition are useful as fabric coatings, and in particular for decreasing air permeability of the coated fabrics at relatively lower coating weights.
Abstract:
High viscosity silicone compositions such as silicone gums, silicone rubbers, silicone elastomers, and silicone resins, are emulsified by mechanical inversion in which silicone water-in-oil (W/O) emulsions are inverted to silicone oil-in-water (O/W) emulsions. Silicone resins with a viscosity of about one billion centistoke (mm 2 /s), i.e., 1,000,000,000 centistoke (mm 2 /s) have been emulsified. These silicone O/W emulsions are useful in personal care products where they are capable of providing improved aesthetics. They are also useful in products used in the paper industry and medical industry. The silicone O/W emulsions are easier to handle than the high viscosity silicone in the emulsion, which enables the emulsions to mixed with other emulsions or other water-soluble ingredients.
Abstract:
A curable coating composition comprises:(A) a water continuous emulsion comprising a curable elastomeric polymer having a viscosity of 0.5-1,000,000 KPa-s and a glass transition temperature up to 50° C.;(B) an aqueous polyurethane dispersion; and optionally,(C) a cure agent.Methods for preparing the curable coating compositions are also disclosed. The curable coating composition and the cured coatings derived from the reaction product of this composition are useful as fabric coatings, and in particular for decreasing air permeability of the coated fabrics at relatively lower coating weights.
Abstract:
A curable coating composition comprises:(A) a water continuous emulsion comprising a curable elastomeric polymer having a viscosity of 0.5-1,000,000 KPa-s and a glass transition temperature up to 50° C.;(B) an aqueous polyurethane dispersion; and optionally,(C) a cure agent.Methods for preparing the curable coating compositions are also disclosed. The curable coating composition and the cured coatings derived from the reaction product of this composition are useful as fabric coatings, and in particular for decreasing air permeability of the coated fabrics at relatively lower coating weights.
Abstract:
A curable coating composition comprises:(A) a water continuous emulsion comprising a curable elastomeric polymer having a viscosity of 0.5-1,000,000 KPa-s and a glass transition temperature up to 50° C.;(B) an aqueous polyurethane dispersion; and optionally,(C) a cure agent.Methods for preparing the curable coating compositions are also disclosed. The curable coating composition and the cured coatings derived from the reaction product of this composition are useful as fabric coatings, and in particular for decreasing air permeability of the coated fabrics at relatively lower coating weights.