Knowledge base

INTRODUCTIONUltraviolet (UV) light curable epoxy-functional dimethylsilicone releasecoating systems consisting of epoxysilicone polymers plus compatible 'oniumtype cationic photocatalysts are well known commercial products whoseproperties and performance have been described in numerous patents,publications, and forums (1-5).The extension of this UV

IntroductionThis paper will describe the laborious and expensiveprocess and equipment currently used and how a versatile andcompact high irradiance UV light source can result in afinished circuit in a simple screen printing and curing onestep method without heat distortion.This paper will also describe the typical cured filmproperties of a i.JV ink

IntroductionPressure sensitive adhesives find numerous everyday applications;masking tape, packaging tape, :desk tape, note pads, and duct tape makeup just a small list of these applications. "Tack," "Peel," and"Creep" properties determine pressure sensitive adhesiveapplications. Definitions and clarifying test results presentedprovide formulators

Importers of chemicals into the United States often find themselves in a precariousposition: under the Toxic Substances Control Act (TSCA), they are considered the equivalent ofchemical manufacturers and thus are subject to the most burdensome responsibilities under TSCAThe burden is compounded by the fact that TSCA is such a complex and demanding

IntroductionRadiation processing is an elegant for increasing restrictions for useof solvent and major correrns for energy savings because it involves solventfreematerials in a cold process. But the physical form (high viscosity of thesolventfree products) leads to differences in handling and being reactivematerials, it will not always be pessible

INTRODUCTION3.1. BACKGROUNDRadiation processing is the technology of creating desirableand useful changes (reactions) in the structure andproperties of materials by treatment with ionizing radiation.It involves the application of man-made or natural sources ofhigh energy radiation in (large) industrial processes.This paper will concentrate on the i

IntroductionThe radiochemical induced reaction in an irradiated product is determined by theabsorbed radiation dose. The penetration depth of dose has to be high enough forahomogeneous dose distribution in the product The ability to deliver dose isdetermined through the efficiency or the yield factor of a processor. Penetrationdepths can be derived

INTRODUCTIONEpoxy resins are used in many assembly processes of electronics for the mounting orencapsulating of components and modules. The resins should process easily and curerapidly at moderate temperatures in order to attain short cycle times, tolerant manufacturingprocesses and low thermal stressing of substrates. These demands generate thehig