C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
117/198, 400/534
C08K 5/54 (2006.01) C03C 25/24 (2006.01) C03C 25/26 (2006.01) C03C 25/30 (2006.01) C08J 5/08 (2006.01) C08L 101/00 (2006.01)
Patent
CA 1075843
ABSTRACT OF THE DISCLOSURE Glass fibers are coated with a size comprising emul- sified particles of a prepolymer having an organo function non- ionic hydrolyzable silane locked into the protective colloid layer surrounding the particles. The silane coated prepolymer particles have an overlay of an ethoxylated fatty material. The size also contains a lubricant comprising emulsified particles of a lubricant oil emulsified with a mixture of ethoxylated fatty alcohols, ethoxylated fatty acids, and a diethoxylated fatty amine. The water phase of the size involves a dissolved cationic silane, as for example, gamma aminopropyltriethoxy- silane and dissolved nonionic lubricant, as for example, an ethoxylated fatty acid. The preferred emulsifier for the pre- polymer is a polypropylenepolyethylene adduct. The size is made by adding an organo functional nonionic hydroy? sil- ane monomer to the emulsion of the prepolymer so that the silane adds to the oil phase. Thereafter the water solution of the silane and the water soluble lubricant are added, followed by the emulsion of the oil.
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