US 2011/0257293 A1 · Time-release dental adhesive

Abstract

The time-release dental adhesive is made as a two-part preparation to increase shelf life. The first part contains three monomers (hydroxyethyl methacrylate [HEMA], triethyleneglycol dimethacrylate [TEG-DMA], and bisphenol A di(ethyl-methacrylate) [BPA-DEMA]), glycerol, a polymerization catalyst, a filler, and a stabilizer. The second part contains the same three monomers listed above, an acrylic resin to increase viscosity, an accelerator, a filler, and a sugar or sugar-based sweetener. When desired for use, the two parts are mixed in a 1:1 ratio by weight. The adhesive cures to a strong, hard bonding agent, but gradually weakens in the presence of moisture to provide a time-release adhesive. The amount of elapsed time before release of the adhesive may be controlled by changing the quantity of sugar or sugar-based sweetener in the adhesive.

Claims19

Dependent claims

A time-release adhesive, comprising a two-part formulation forming a polymer adhesive when the two parts are mixed in a 1:1 ratio by weight, wherein the two-part formulation comprises:

i) a first part having a first plurality of polymerizable acrylic monomers, glycerol, an acrylic resin, and a polymerization catalyst;
and
ii) a second part having a second plurality of polymerizable acrylic monomers, an acrylic resin, and a polymerization accelerator, wherein the polymerization accelerator comprises dimethyl analine;
the formulation further including a quantity of a sugar or a sugar-based sweetener,
whereby the adhesive curing to form a hard bond between two materials, the bond weakening and releasing in the presence of moisture after a period of time controlled by the quantity of the sugar or sugar-based sweetener.

2 more elements

Dependencies are inferred from the claim text.

Time-release dental adhesive

Life of this patent

Time-release dental adhesive

Life of this patent

Abstract

Claims19