12.03.13
US Patent No. 8,535,699 B2; Sumika Life Tech, Limited, Osaka-Shi, Japan, has patented an insect-controlling resin composition comprising a polyvinyl chloride resin which contains a non-vaporizable insect-controlling component and isolated erucic acid. The isolated erucic acid is contained in 1.2 to 3 parts by weight to 100 parts by weight of the insect-controlling resin composition.