Patent ID: 6514612
Filing Date: 2003-02-04
Classification: C03C,Y10T

Abstract:
Glass yarn coated with a sizing composition consisting of a solution whose solvent content is less than 5% by weight, this solution comprising at least 60% by weight of polymerizable components, at least 60% by weight of these polymerizable components being components with a molecular mass of less than 750 and these polymerizable components comprising at least one polymerizable mixture of:component(s) containing at least one reactive acrylic function and/or at least one reactive methacrylic function, and component(s) containing at least one reactive primary amine function and/or at least one reactive secondary amine function, wherein at least 20% of the polymerizable components contain at least two reactive functions selected from the group consisting of acrylic, methacrylic, primary amine and secondary amine functions, and wherein the ratio r between the number of (meth)acrylic reactive sites and the number of primary and/or secondary amine reactive sites in presence is between 0.2 and 3.