Patent ID: 8142689

Claim:
A composition for imparting superior fire retardancy and shape-retaining properties to polyester, the composition comprising: (i) 55 to 75% by weight of a sodium silicate solution; (ii) 0.5 to 7% by weight of carboxyl methyl cellulose; (iii) 0.7 to 10% by weight of a urethane resin; (iv) 0.7 to 10% by weight of an acrylic resin mixture; and (v) the remaining weight percent of water, based on 100% by weight of the composition, wherein the sodium silicate solution consists of Na 2 O and SiO 2 in a molar ratio of 1:2.1 to 1:2.9, the urethane resin consists of 70 to 80% by weight of methylene diphenyl isocyanate and 20 to 30% by weight of methylpolyglycol, and the acrylic resin mixture consists of 36 to 40% by weight of a butyl acrylate monomer, 10 to 13% by weight of methyl methacrylate, 1 to 2% by weight of an emulsifier, 3 to 5% by weight of acrylic acid and the remaining weight percent of water.