4 results about "Ethyl group" patented technology

A label that permits rebridging of disulfide linkages in antibodies or proteins. The label has a general formula given by

wherein R₁ is methyl, ethyl or propyl and R₂ is a metal chelator, a fluorophore or a click-chemistry synthon.

The invention relates to a high-bonding-strength conductive adhesive for repairable microelectronic assembly and a preparation method thereof. The high-bonding-strength conductive adhesive comprises the following raw materials in percentage by weight: resin, conductive filler, a curing agent, an active diluent and an additive, wherein the resin is prepared from the following raw materials in percentage by weight: bisphenol A epoxy resin and bisphenol F epoxy resin; the conductive filler is prepared from the following raw materials in percentage by weight: flake silver powder and spherical silver powder; the curing agent is prepared from the following raw materials in percentage by weight: 2-ethyl-4-methylimidazole, 1-cyanoethyl-2-ethyl-4-methylimidazole, polyether amine 400 and triethanolamine; the reactive diluent is prepared from the following raw materials in percentage by weight: polyethylene glycol diglycidyl ether and polypropylene glycol diglycidyl ether; and the additive is a substance capable of achieving a thickening effect. The problems that an existing conductive adhesive is poor in conductivity, poor in bonding strength, incapable of being detached and repaired after bonding and the like are solved. The adhesive is widely applied to bonding materials for circuit connection of electronic components.

The invention provides high-adhesion wear-resistant UV-LED printing ink, which is prepared from 41 to 46 parts of high-functionality polyurethane acrylate, 13 to 18 parts of adhesion promoter, 30 to 35 parts of cyclopentene ethyl isocyanuric acid triacrylate, 6 to 12 parts of photoinitiator, 2 to 4 parts of auxiliary agent and 3 to 5 parts of filler. The high-functionality polyurethane acrylate is taken as a prepolymer, thecyclopentene ethyl isocyanuric acid triacrylate is taken as an active monomer, the adhesion promoter is added as a modifier, then the photoinitiator, the auxiliary agent and the filler are added, so that the prepared UV-LED printing ink has high friction resistance and adhesion, and the service life pf a keyboard smeared with the UV-LED printing ink can be prolonged.