Patent ID: 8455585

Claim:
A water repellant coating composition comprising: polybutene; polysiloxane; an emulsifier; and water, wherein the polybutene is present in an amount of 10 to 70 weight percent, based on the total weight of the composition, the polysiloxane is present in an amount of 3.5 to 40 weight percent, based on the total weight of the composition, the emulsifier is present in an amount of 0.5 to 15 weight percent, based on the total weight of the composition, and the water is present in an amount of 15 to 80 weight percent, based on the total weight of the composition, and wherein the polysiloxane comprises wherein each R 1 , R 4 , and R 5 may be identical or different and are independently selected from the group comprising alkyl, aryl, aminoalkyl, mercaptoalkyl, glycidyl ether alkyl, and hydrogen radicals, R 2 , R 3 , and R 6 may be identical or different and are selected each independently from the group comprising hydrogen, alkyl and aryl radicals, and m and n is selected so that the molecular weight for the polysiloxane is in the range of from 200 to 600,000, and the composition has a VOC of less than 50 g/liter.