Dental adhesive container dropping system

• US 6,076,709 A
• Filed: 05/04/1998
• Issued: 06/20/2000
• Est. Priority Date: 05/04/1998
• Status: Expired due to Term

• Current Assignee: Dentsply Detrey Gmbh (Astrazeneca PLC)
• Original Assignee: Dentsply Detrey Gmbh (Astrazeneca PLC)
• Inventors: Wilner, Ralf
• Primary Examiner(s): Shaver, Kevin
• Assistant Examiner(s): KEASEL, ERIC S
• Application Number:
  US09/072,245
• Time in Patent Office: 778 Days
• Field of Search: 222/420, 222/421, 222/422, 222/190, 222/212, 222/215, 604/295, 428/36.91, 428/36.6, 428/35.7
• US Class Current: 222/212
• CPC Class Codes: B65D 47/18 for discharging drops; Droppers droppers in general B01L3/00; pipettes connected to container closures B01L3/0282
• CPC Class Codes: Y10T 428/1379 Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit

Abstract

Dental adhesive container dropping system, characterized by the combination of (a) a dental adhesive polymerizable with visible light dissolved in acetone or acetic acid ethyl ester; (b) a light impermeable bottle (1) for the dental-adhesive, elastically deformable for the drop formation, with a laminated wall (3) comprising (b1) at least one polymer layer (15) impermeable to acetone or acetic acid ethyl ester, and (b2) at least one light impermeable, elastically deformable polymer layer (13); (b3) a compatibilizer guaranteeing the laminate structure and which can be formed as at least one intermediate layer (17) or which can be admixed to the elastically deformable polymer layer (13); (c) a light impermeable and evaporation-proofsealable dropper insert (20) of light impermeable plastic material with a dropper conduit (50) enlarging from the inner to the outer part, whereby; (c1) the diameter at the inlet end corresponds to the desired drop size; and, (c2) the diameter at the discharge end is within the range of from 0.1 to 0.25 MM.

Claims

1. Dental adhesive container dropping system, characterized by the combination of

(a) a dental adhesive polymerizable with visible light dissolved in acetone or acetic acid ethyl ester,

(b) a light impermeable bottle (1) for the dental adhesive, elastically deformable for the drop formation, with a laminated wall (3) comprising

(b1) at least one polymer layer (15) impermeable to acetone or acetic acid ethyl ester, and

(b2) at least one light impermeable, elastically deformable polymer layer (13),

(b3) a compatibilizer guaranteeing the laminate structure and which can be formed as at least one intermediate layer (17) or which can be admixed to the elastically deformable polymer layer (13),

(c) a light impermeable and evaporation-proof sealable dropper insert (20) of light impermeable plastic material with a dropper conduit (50) enlarging from the inner to the outer part, whereby

(c1) the diameter at the inlet end corresponds to the desired drop size and

(c2) the diameter at the discharge end is within the range of from 0.1 to 0.25 mm.

2. Dental adhesive container dropping system according to claim 1, characterized in that the bottle has an inner volume of from 3 to 10 ml.

3. Dental adhesive container dropping system according to one of claims 1 or 2, characterized in that the bottle (1) has a wall thickness of from 0.3 to 1.5 mm.