US 11,945,950 B2
Germ-repellent silicone rubber and preparation method and application thereof
Xiaonan Huang, Hong Kong (HK); Xianqiao Liu, Hong Kong (HK); and Chun Kit Choi, Hong Kong (HK)
Assigned to Hongrita Plastics Ltd., Hong Kong (HK)
Filed by Hongrita Plastics Ltd., Hong Kong (HK)
Filed on Oct. 22, 2021, as Appl. No. 17/507,823.
Claims priority of application No. 32020022392.5 (HK), filed on Dec. 18, 2020.
Prior Publication US 2022/0195191 A1, Jun. 23, 2022
Int. Cl. C08L 83/04 (2006.01); C08K 5/00 (2006.01); C08L 71/02 (2006.01)
CPC C08L 83/04 (2013.01) [C08K 5/0058 (2013.01); C08L 71/02 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A germ-repellent silicone rubber comprising: a silicone rubber substrate and germ-repellent active ingredients incorporated therein; wherein the mass ratio of the silicone rubber substrate to the germ-repellent active ingredient is 100:(2-10);
the silicone rubber substrate includes component A and component B, component A includes polydimethylsiloxane with vinyl groups; component B includes polydimethylsiloxane with functional groups;
the germ-repellent active ingredients include a polyethoxylated non-ionic surfactant, wherein the polyethoxylated non-ionic surfactant is selected from a combination of polyethylene glycol or the derivative thereof with silicone oil;
wherein said polyethylene glycol or the derivative thereof comprises polyethylene glycol 200, polyethylene glycol 400, methyl polyethylene glycol 600, and poly(ethylene glycol) sorbitol hexaoleate.