Patent ID: 8632881

Claim:
A glass fiber product comprising glass fibers having a protective coating thereon, the protective coating being formed from a coating composition, wherein the coating composition has a solid content and wherein the only (A) synthetic resin in the solid content is formed from at least one selected from the group consisting of (meth)acrylate resin emulsion, styrene-acrylate copolymer emulsion, vinyl acetate resin emulsion, and vinyl acetate-(meth)acrylate copolymer emulsion; and wherein said (A) synthetic resin is the main component in the coating composition; said coating composition comprising: 100 parts of said (A) synthetic resin, and (B) 0.01 to 10 parts by weight of a mixture of (B-1) 10 to 90% by weight of at least one member selected from an acetylene glycol represented by the following general formula (1): wherein R 1 and R 2 are respectively an alkyl group containing 1 to 5 carbon atoms, an ethylene oxide-propylene oxide block adduct of an acetylene glycol represented by the following general formula (2): wherein R 3 and R 4 are respectively an alkyl group containing 1 to 5 carbon atoms; A is —(C 2 H 4 O) w1 —(C 3 H 6 O) x1 —(C 2 H 4 O) y1 —(C 3 H 6 O) z1 —H; and B is —(C 2 H 4 O) w2 —(C 3 H 6 O) x2 —(C 2 H 4 O) y2 —(C 3 H 6 O) z2 —H; wherein w1, w2, x1, x2, y1, y2, z1, and z2 are respectively 0 or a positive number of 0.5 to 25, w1+w2+y1+y2 is 0.5 to 50, x1+x2+z1+z2 is 0.5 to 50, and w1+w2+x1+x2+y1+y2+z1+z2 is 1 to 100); and an ethylene oxide-propylene oxide random adduct of an acetylene glycol represented by the following general formula (3): wherein R 5 and R 6 are respectively an alkyl group containing 1 to 5 carbon atoms; D is —(C 2 H 4 O/C 3 H 6 O) m —H; and E is —(C 2 H 4 O/C 3 H 6 O) n —H; wherein m and n are respectively 0 or a positive number of 0.5 to 50, and m+n is 1 to 100); (B-2) 10 to 90% by weight of at least one member selected from a polyoxyalkylene alkyl ether having an HLB of 8 to 18 represented by the following general formula (4): R 7 O(C 3 H 6 O) v (C 2 H 4 O) w (C 3 H 6 O) x (C 2 H 4 O) y (C 3 H 6 O) z H (4) wherein R 7 is an alkyl group containing 1 to 20 carbon atoms; v, w, x, y, and z are respectively 0 or a positive number of 1 to 20; with the proviso v+w+x+y+z>0; and (B-3) 0 to 25% by weight of water and/or a water soluble organic solvent.