초록 ▼

A method is disclosed for enhancing at least one of the mechanical properties of a partially crystalline thermoplastic by forming a dispersion of a polydiorganosiloxane within the thermoplastic, and extending the resultant dispersion. Ultimate tensile strength, modulus, and ultimate elongation can b

A method is disclosed for enhancing at least one of the mechanical properties of a partially crystalline thermoplastic by forming a dispersion of a polydiorganosiloxane within the thermoplastic, and extending the resultant dispersion. Ultimate tensile strength, modulus, and ultimate elongation can be enhanced in comparison with the same thermoplastic with no added polydiorganosiloxane and no extension.

대표청구항 ▼

A method for enhancing at least one of the mechanical properties of a partially crystalline thermoplastic, said method comprising (A) making a dispersion within said partially crystalline thermoplastic of from about 0.1% to about 5% by weight, based on the total weight of the dispersion, of a polydi

A method for enhancing at least one of the mechanical properties of a partially crystalline thermoplastic, said method comprising (A) making a dispersion within said partially crystalline thermoplastic of from about 0.1% to about 5% by weight, based on the total weight of the dispersion, of a polydiorganosiloxane, said polydiorganosiloxane having the formula R3SiO(R2SiO) xSiR3, wherein each R is selected from the group consisting of the methyl radical, carboxyalkyl radicals, trifluoropropyl radicals, aminoalkyl radicals, phenyl radicals and polyalkylene oxide radicals, wherein said polydiorganosiloxane has a viscosity value at 25°C. of from about 1.5×10-2 m2/second to about 6.0×10-1 m2/second, wherein the dispersed particles within said dispersion are, on average, less than about 1.5m10. The method of claim 1 wherein the partially crystalline thermoplastic is a polyester and the extension ratio is greater than about 4.5.