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    • 5. 发明公开
    • SOLVENT RESISTANT NON-FORMALDEHYDE THERMOSET FLUORESCENT PIGMENT
    • 溶剂中的固体热固性FLUOREZENTES颜料不含甲醛
    • EP0902819A1
    • 1999-03-24
    • EP97924698.0
    • 1997-05-13
    • DAY-GLO COLOR CORP.
    • WATERS, John, F.LIKAVEC, Wayne, R.DIPIETRO, Thomas, C.
    • C09B67C09K11
    • C09B67/0061C09K11/02C09K11/06
    • The present invention provides a novel, non-formaldehyde thermoset fluorescent pigment which is useful to color plastics, particularly flexible vinyl, which is solvent resistant, particularly to acetone. Moreover, the pigment does not bleed in plastics. The pigment comprises a polymer matrix and a fluorescent dye. The polymer matrix has a molecular weight of greater than about 330, preferably greater than about 1000. Embodiments which lack the water insoluble resin, have a molecular weight greater than about 330, preferably greater than about 500. The polymer matrix contains: from about 15 to 50 mole percent, preferably 30 to 40 mole percent, of a carboxylate functional oligomer; 30 to 80 mole percent, preferably 50 to 60 mole percent, of a metal ion; and 0 to 40 mole percent, preferably about 1 to 40 mole percent, more preferably from 1 to 30 mole percent, most preferably from about 3 to 10 mole percent of a water insoluble resin. In embodiments where no water insoluble resin is used, the metal is present from at least 51 mole percent. The oligomer comprises from about 10 to about 60 mole percent, preferably 20 to 35 mole percent of a first monomer, 40 to 90 mole percent, preferably 65 to 80 mole percent of second monomer. The weight average molecular weight of the oligomer is 330 to 2000, preferably about 560 to 600. The invention also relates to a novel method for producing the fluorescent pigments.
    • 9. 发明公开
    • SYSTEM FOR MULTI-SITE SKIN TESTING AND COMPONENTS THEREOF
    • 系统进行测试皮肤在几个问题上和所需组件
    • EP0877573A1
    • 1998-11-18
    • EP97901908.0
    • 1997-01-08
    • LINCOLN DIAGNOSTICS, INC.
    • HEIN, Gary, L.
    • A61B5A61B17
    • A61B5/441A61B5/411A61B17/205
    • This invention is a system for making multi-site skin tests primarily for use by allergists making use of a multi-head applicator (5), and a matching multi-well dip well tray (20). The applicator (5) has an elongated handle (6) with arms (8) extending transversely from opposite sides having downwardly extending legs (7) terminating in multi-pointed ends or heads (12) capable of picking up and retaining small quantities of liquid skin testing substances. The multi-pointed ends or heads (12) occupy the same plane and are arrayed in a pattern suited for simultaneously making multi-site skin tests. The applicator (5) cooperates with a multi-well dip well tray (20) with a plurality of dip wells (22) arrayed in patterns which match the pattern in which the multi-pointed ends or heads (12) on the cooperating applicator (5) are arrayed. The individual dip wells (22) have a capacity to hold quantities of skin testing substances or medicaments equaling many times the volume of a single dose or increment that is picked up by one of the multi-pointed ends or heads (12) on an applicator (5). Both the applicator (5) and dip well tray (20) have guidance formations thereon whereby the user can readily orient the multi-point pickup ends or heads (12) on the applicator (5) with the dip wells (22) so that the heads can be readily and accurately lowered into the matching dip wells (22) without damaging the points (12) of the applicator (5).