Ultraviolet -radiation curable

Fefferman, G. B. "Using Ultraviolet Radiation Curable Resins for Printed Circuit Coatings", 2nd International Conference on Radiation Curing, Cincinnati, Ohio, May 1975. 

Ultraviolet radiation-curable filled urethane dlmethacylate cements have been used as dental restorative compositions. ... 

Frances, R.S. and Edelman, R., Ultraviolet radiation-curable acrylic polymer pressure sensitive adhesives, Japanese Patent JP 200004-4887, 2000 Frances, J.M., Delchet, L., Amaut, C., Gambut, L., Pressure-sensitive adhesive silicone compositions. World Patent 0310257, CA-2003-97495 2003. 

Frances RS, Edehnan R. Ultraviolet radiation-curable acrylic polymer pressure sensitive... 

Wolf et al. (3) prepared coating compositions using hydroxylamine esters, (II) and (III), that were curable by thermal and ultraviolet radiation. 

In 1983, radiation curable 100 % solvent-free silicone acrylates were introduced into the market [4], This system provide the opportunity to be cured by either ultraviolet light (UV) or electron beam (EB). Similar in concept to peroxide initiation, silicone acrylate systems employ photoinitiators to generate free radicals and initiate cure, which is based on the polymerization of the acrylic C=C double bond via a radical chain reaction. 

Free-radical, radiation-curable systems generally consist of monomers, oligomers, photoactivators, other resins, and fillers or tackifiers. An ultraviolet source or electron-beam generator is used to cure the systems. As an illustration Stueben (37) describes a typical UV-cured PSA system containing acrylates and polyvinyl ether. McGinniss (38) discusses formulation design related to UV-curable systems. The cationic photoinitiators are shown in Fig. 1. 

The papers presented in the following chapters represent advances in pressure sensitive adhesives (ultraviolet light activated acrylate monomer - low Tg polyether formulations) photoinitiated cationic polymerization (light activated aryliodonium and arylsulfonium salts of lewis acids in epoxy resin formulations) polymer and formulation design criteria for radiation curable adhesives radiation curable composites (dynamic thermal analysis characterization of electron beam cured... 

Lower VOC Radiation-Cured High Solids Coatings Radiation-curable coatings include high-solids materials that are formulated to be cured by ultraviolet (UV) and electron beam (EB) techniques. While their current use is at a much lower level than powder... 

Likavec WR, Bradley CR, Ultraviolet and electron beam radiation curable fluorescent printing ink concentrates and printing inks. US Patent 5,866,628 1999. 

Majof silicone suppliers have been developing radiation-curable coatings for some time now the solventless systems lend themselves to this approach since all the space radiant energy can be directed at the polymer system for curing, and none wasted for solvent evaporation or in the substrate. The energy source referred to may be either ultraviolet or electron-beam radiation, and the objective is a very rapid zero-temperature controllable cure, with much of the control occurring through the intensity of the source. 

Nearly 42% of the demand for all adhesives comes from the packaging sector. Radiation-curable adhesives are used primarily for packaging, with paper and paperboard the dominant materials used in the packaging. Radiation-curable adhesives can be used on glass, metal and some plastic materials. Other applications for radiation-curable adhesives are in healthcare, electronics, communications, pressure-sensitive tape and consumer applications. Ultraviolet (UV)-curable adhesives are best suited to small-scale applications, while electron beam (EB)-curable adhesives are more appropriate in high-volume applications (an EB system has a higher installation cost). One additional characteristic of EB-curable adhesives is that they can cure the area between two substrates. UV light-cured adhesives can also be applied on heat-sensitive substrates and are not affected by ambient temperature or humidity. 

UV-curable (polymer) A polymer basecoat material that can be cured by exposure to ultraviolet radiation, thus avoiding the pollution problems associated with heat-curable polymers. 

Ultraviolet-curable laminating adhesives use cationic chemistry and visible initiating systems to solve laminating problems with polyester films, which absorb most UV radiation.15... 

FP is not currently in commercial use, although there have been several patents issued related to it. The first is for an In depth curing of resins induced by UV radiation, which used a combination of UV hght to start free-radical FP [63]. In 2001, Gregory patented Ultraviolet curable resin compositions having enhanced shadow cure properties in which the frontal curing of cycloaliphatic epoxides was achieved with a cationic photoinitiator in tandem with a peroxide [64]. Pojman was awarded two patents on functionally gradient materials prepared by FP [65, 66]. The maker of chemical anchors, Hilti, has two patents on FP but has not commercialized either of them [67, 68]. 

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