Abstract: Disclosed are dipyridyl alkaloid, a preparation method therefor and use thereof. The structure of the dipyridyl alkaloid is as shown in formula I. The dipyridyl alkaloid has a tumor cell proliferation inhibitory activity and can be used as a tumor cell proliferation inhibitor or for developing an anti-tumor drug.

Abstract: A method of making an aluminum hydroxide and melamine blend. The method comprises jet milling a quantity of coarse particle size melamine until a line particle size melamine is obtain which has a median particle size of from about 0.5 .mu.m to about 45 .mu.m, passing the fine particle size melamine through an air classifier and a cyclone separator, and admixing the fine particle size melamine with a quantity of surface treated aluminum hydroxide in a high speed mixer.

Abstract: A fire retardant coating composition for lignocellulosic materials which comprises expandable graphite particles, a absorbent material, a polymeric binder, a carbonific material, a blowing agent, and a wetting agent. The expandable graphite particles include from about 20 to about 95% by weight of the combined amount of the expandable graphite particles and the absorbent material. The polymeric binder comprises from about 5 to about 50% by weight of the combined amount of the polymeric binder, the expandable graphite particles, and the solid absorbent material.

Abstract: A flame retardant composition comprising an effective synergistic flame retardant combination of a melamine phosphate and tris(neopentyl) nitrilotris(methylphosphonate) suitable for use as an additive to a normally flammable polymer composition, especially wire insulation and cable jackets.

Abstract: A flame retardant composition is provided comprising a normally flammable polyolefin or olefin copolymer, and a flame retardant amount of melamine or salt thereof, a polyphenylene oxide and a silicaceous material.