Cellulose Cyanoacrylate and Method of Employment

Abstract

Cellulose cyanoacrylate is employed either to bond two surfaces or to duplicate the shape of a three-dimensional object. The method is carried out by applying a release material to the object to be duplicated, applying a sheet of cellulosic material formed of wood fibers onto the three dimensional object, then saturating the sheet of cellulosic material with a cyanoacrylate glue and permitting the saturated sheet to cure. The resulting product duplicates the shape of the object. Two surfaces may be bonded by placing a sheet of cellulosic material between the two surfaces and applying the cyanoacrylate glue to edges of the sheet until saturated and allowing it to cure. Paper toweling may favorably be employed as the cellulosic material. This material may also be employed in bone or tooth repair. A break or fracture in an article can be repaired by positioning a sheet of cellulosic material over the break, saturating it with cyanoacrylate glue, and holding the saturated sheet in place with a releasable film. Irritating fumes may be suppressed by covering the saturated cellulosic material with a release film.

Claims

1-20. (canceled)

21. (canceled)

22. (canceled)

23. (canceled)

24. A cellulose cyanoacrylate compound, comprising a waterproof composition of matter formed by saturating fibrous cellulosic material selected from the group consisting of cotton and sheets of paper toweling comprising wood fibers, with liquid cyanoacrylate glue.

25. compound of claim 24 wherein the glue is selected from the group consisting of one or more of cyano-methyl, cyano-ethyl and cyano-octyl acrylates.

26. compound of claim 24 having properties of high rigidity and high abrasion resistance.

27. compound of claim 24 shaped while curing with pressure applied through a layer of flexible material that is releasable from the cured surface.

28. compound of claim 24 applied as a support system for repair of a bone fracture.

Description

[0008] The advantages of the invention include:

[0009] 1) Very brief cure or hardening timesordinarily faster than thirty secondscompared to epoxy times of one to several minutes.

[0010] 2) Extreme tolerance to moisture, allowing it to function as a dental repair material as well as a great variety of underwater applications.

[0011] 3) Pleasant pearl-like translucent appearance.

[0012] 4) Very light weight-to-strength ratio.

[0013] 5) Flexible and spring-like consistency.

[0014] 6) Readily made in any color.

[0015] 7) Very hard, abrasion-resistant surface.

[0016] 8) Can be used for orthopedic work to repair and/or reinforce bones, i.e., at a fracture site. In many cases this technique can be used after taking the usual steps to make the wound area sterile and surgically making the fracture site available, to avoid the use of plates, pins, or screws. This technique includes repositioning and wrapping a bone fracture with two layers of paper towel or similar cellulose sheet, saturating with cyanoacrylate, and adding separately two additional layers at a time to achieve a desired strength. The cellulose sheet can be of a width between four and fifty millimeters and a thickness of one-half millimeter up to three millimeters. At each stage, the saturated layer or layers are covered with a release film and gentle pressure can be applied to exclude air pockets or bubbles and also to shape the material. Before closing up the wound site the release material is removed. The repair can be left intact indefinitely, allowing the bone to knit and thereafter the inert repair material may be left permanently in place, with the end result being a bone that is stronger than the original In most cases there would be no need for an outer cast or splint. This technique may also be used for tooth repair.

[0017] 9) Any irritant vapor or fumes can be controlled easily. During the relatively short cure period, after infusing the cellulose material with the cyanoacrylate compound(s), any vapors can be confined by covering the materials with a film of a non-pervious material which can be removed after the components have reacted sufficiently. This covering may be a release film.

[0018] Many variations of this process are possible, and the scope of the invention is to be measured by the appended claims. LISTING OF THE CLAIMS: