| 摘要 |
<p>PURPOSE: To provide an adhesive and a tubular lap both of which have excellent heat resistance and ultraviolet resistance and can resist against temperature increase in a base part,, which is due to compactification of an apparatus and the tubular lamp or increase in output, and ultraviolet ray increase, which is due to increase in output. CONSTITUTION: A base adhesive 1 for a tubular lamp consists of the first inorganic filling whose mean grain size is 147μm or less, the second inorganic falling containing 1 to 20% by weigh of a vertically long grain (needle grain) substance, whose longest part, length is 300% of that of the shortest part or more, to the first inorganic filling, and adhesive base resin. In this way, heat resistance and ultraviolet resistance are increased, and a glass bulb 3 is prevented from falling off from a base part 2 before a life of the tubular lamp runs out. In application of the adhesive 1 to the base 2, a conventional adhesive filling device can be directly used and workability is extremely good, as the adhesive 1 is excellent in fluidity and such a phenomenon as cobwebbing is avoided.</p> |
