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Title:
VINYL CHLORIDE RESIN SHEET FOR CUTTING ULTRAVIOLET RAY
Document Type and Number:
Japanese Patent JPH0618718
Kind Code:
A
Abstract:

PURPOSE: To selectively and completely remove only the UV rays radiated from a fluorescent lamp while assuring a good illuminating state by adding a selected specific UV absorbent at a specific ratio to the thickness of a vinyl chloride resin sheet.

CONSTITUTION: The compd. expressed by formula is added to 100 pts.wt. vinyl chloride resin at the compounding ratio satisfying 2.4≤Cxt≤6.0 when the amt. of the compd. to be added is expressed as C (pts.wt.) and the thickness of the vinyl chloride resin sheet as t(mm). The vinyl chloride resin is exemplified by, for example, an independent polymer of vinyl chloride, chlorinated vinyl chloride polymer or copolymers of vinyl chloride and vinyl acetate, ethylene, propylene, etc., and a mixture composed of respectively ≥2 kinds of the polymers, etc. Further, stabilizers, lubricants, reinforcing materials, working assistants, etc., which are usually added to the vinyl chloride resin may be added to the above-mentioned sheet.


Inventors:
Ikeda, Yoshikazu
Application Number:
JP1992000175452
Publication Date:
January 28, 1994
Filing Date:
July 02, 1992
Export Citation:
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Assignee:
TSUTSUNAKA PLAST IND CO LTD
International Classes:
C08K5/3475; C08K5/34; C08L27/06; C09K3/00; F21V9/06; G02B5/22; (IPC1-7): G02B5/22; C08K5/3475; C08L27/06; C09K3/00; F21V9/06
Domestic Patent References:
JPS61159435A
JP59076011B
Attorney, Agent or Firm:
黒瀬 靖久 (外2名)