7 results about "Dual cure" patented technology

The present disclosure provides a coating composition formed from a dual cure chemistry. The dual cure chemistry can include ATRP and epoxy-polysiloxane or ATRP and polyurea. The coating composition can include a first co-reactive component and a second co-reactive component. The first co-reactive component can include a first catalyst, a ligand, and an epoxy-polysiloxane resin or an amine. The second co-reactive component can include a reducing agent and a polyamine / amino silane and a second catalyst or isocyanate. One or both of the first co-reactive component and the second co-reactive component can include an initiator and a monomer.

A dual cure process for forming a solid polymeric structure is provided. An end-capped terminal imide prepolymer is combined with at least one photopolymerizable ethylenic monomer, at least one photoinitiator, and a diamine to form a curable resin composition. The resin composition is irradiated in a first step under conditions effective to polymerize the at least one ethylenic monomer, thereby forming a scaffold composed of the prepolymer and polyolefin, wherein the diamine is entrapped within the scaffold. The irradiated composition is then heat treated at a temperature effective to cause a transimidization reaction between the prepolymer and the diamine, thereby releasing the terminal groups of the prepolymer to provide the solid polymeric structure. Also provided is a curable resin composition comprising an end-capped terminal imide prepolymer, at least one photopolymerizable ethylenic monomer, at least one photoinitiator, and a diamine, and related methods of use.

The present application relates to a photonic crystal composition based on a double curing system, a film and a preparation method thereof, raw materials of the photonic crystal composition comprising the following components by mass fraction: nanomicrospheres 50-80 parts; acrylate reactants 10-30 parts; photoinitiators 0.5-1.5 parts; thermally cured amino resins 1-10 parts; the photonic crystal composition has good adhesion on a plastic substrate and has high solvent resistance.

A coating has dual curing mechanisms wherein the first cure reaction and second cure reaction become active due to differing reaction mechanisms.

Provided is a composition comprising: A) an aliphatic polyurethane which comprises a reaction product of a first aliphatic polyisocyanate, a first polyol, and a thiol, optionally in the presence of a catalyst, and B) a urethane (meth)acrylate prepolymer, optionally a reactive diluent, and a photoinitiator, wherein the urethane (meth)acrylate prepolymer comprises a reaction product of a second aliphatic polyisocyanate, a second polyol and an acrylate, wherein the reactive diluent comprises a (meth)acrylate monomer, wherein the first aliphatic polyisocyanate and second aliphatic polyisocyanate may be identical or different, and wherein the first polyol and the second polyol may be identical or different. Also provided is a process comprising combining: A) a polyurethane which comprises a reaction product of a first aliphatic polyisocyanate, a first polyol, and a thiol, optionally in the presence of a catalyst, and B) a urethane (meth)acrylate prepolymer, a reactive diluent, and a photoinitiator, wherein the urethane (meth)acrylate prepolymer comprises a reaction product of a second aliphatic polyisocyanate, a second polyol and an acrylate, wherein the reactive diluent comprises a (meth)acrylate monomer, wherein the first aliphatic polyisocyanate and second aliphatic polyisocyanate may be identical or different, and wherein the first polyol and the second polyol may be identical or different. The compositions of the invention may find use in 3D printing applications.

A two-part adhesive is provided that combines light curing and redox curing to reduce processing time when bonding components onto a substrate. A fluorescent dye is added to the adhesive to increase the light-curing rate without affecting the final bonding strength by redox curing. The adhesive may be used to bond magnets to substrates such as C5 coasted steel, stainless steel, aluminum, or anodized aluminum.