The possibility of using agricultural waste as a raw material for chemical industry is considered. Their properties, production methods and rational areas of practical application are described. The accent is made on the use of rubber tree oil and its functionalized derivatives as polymer modifiers. The data on application possibilities as fillers of grain production wastes: husks of millet, rice and buckwheat are presented. Application of non rubber components, protein-lipid complex and keratin protein hydrolyzate is described.This book has been translated with Artificial Intelligence.