|Publication number||US3838702 A|
|Publication date||Oct 1, 1974|
|Filing date||May 11, 1973|
|Priority date||Oct 3, 1972|
|Publication number||US 3838702 A, US 3838702A, US-A-3838702, US3838702 A, US3838702A|
|Inventors||N Standish, H Talsma|
|Original Assignee||Standard Oil Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (77), Classifications (10)|
|External Links: USPTO, USPTO Assignment, Espacenet|
UnitedStates Patent Standish et al.
1 1' Oct. 1, 1974 DENTAL FLOSS  Inventors: Norman W. Standish, Shaker Heights; Herbert Talsma, East Cleveland, both of Ohio  Assignee: The Standard Oil Company,
Cleveland, Ohio  Filed: May 11, 1973 [211 App]. No.: 359,466
Related US. Application Data  Continuation of Ser. No. 294,672, Oct. 3, 1972.
 US. Cl. 132/89  Int. Cl. A6lc 15/00  Field of Search 132/89, 93; 424/93  References Cited UNITED STATES PATENTS 2,700,636 l/l9i55 Ashton 424/93 Muhler 424/93 Muhler 132/89 Primary Examiner-G. E. McNeil] Attorney, Agent, or Firm-John F. Jones; Sherman J. Kemmer; Evelyn R. Kosman 57 ABSTRACT 11 Claims, No Drawings DENTAL FLOSS This is a continuation-in-part application of our copending patent application Ser. No. 294,672 filed Oct. 3, 1972.
This invention relates to a dental floss having improved cleaning properties. More specifically this invention relates to a dental floss coated with a coating agent having embedded therein a finely divided particulate material as a polishing agent.
The dental floss of this invention combines the superior cleaning qualities of unwaxed dental floss with the advantages associated with the wax-coated floss, such as ease of unwinding from the spool and ease of insertion between the teeth, and at the same time the dental floss of this invention does not have the disadvantage of deposit buildup on the surface of the teeth associated with wax-coated flosses that are currently available. Of equal importance is the ability of this floss to polish the teeth.
The components of the dental floss of this invention by necessity are composed of materials of an inert and non-toxic nature. The yarn to be coated may be any suitable natural or synthetic yarn suchas, for example, those composed of cotton, silk, linen, nylon, polyester or acrylic fibers, and various mixtures thereof. The floss may be of any suitable size or shape; it may be round or flat, and may be composed of braided, spun or twisted fibers capable of being inserted between the teeth. It is preferred that the fiber employed as the floss be a multi-filament fiber having sufficient strength so that it will not break too readily and yet should not be so firm that it cannot be easily cut. It is therefore desirable that the fibers have a break load for the total floss within the range of about 4 to 16 pounds.
The coating agent applied to the floss comprises a matrix in admixture with a polishing agent. Preferably the matrix has elastomeric properties so that the particles embedded therein will exert an even pressure on the surface of the teeth to sustain a polishing action. The particles should have the ability to float freely in the matrix and yet have the ability to recover their posi tion so that they are not displaced from the elastomeric matrix that surrounds them. Accordingly, the matrix may comprise a natural or synthetic resilient wax, polymer, rubber, or a latex adhesive.
In order to facilitate coating of the fiber it is desirable that the matrix be in a fluid form, so that either a low molecular weight material or a solvent solution of a higher molecular weight material may be utilized in the coating process. Examples of suitable materials include the following: flexible mineral, animal or vegetable waxes such as hydrocarbon waxes, including microcrystalline waxes and paraffinic waxes, bees wax, montan wax, carnauba wax and ceresin wax; low molecular weight polyethylene, particularly branched polyethylene, polyethylene glycols, chlorosulfonated polyethylene; polybutene-based rubbers such as polyisobutylene, polybutadiene, copolymers of butadiene and styrene, copolymers of butadiene and acrylonitrile; isoprene-based rubbers such as, polyisoprene, copolymers of butadiene and isoprene; polyvinylchloride, polyvinylidene chloride; polyester-based elastomers such as poly(methylmethacrylate), polyethylacrylate; polyether-based elastomers; silicone rubbers; polyurethanes, and the like.
Preferred materials for the matrix composition are the water-insoluble, flexible materials that have good adherence to the fibers of the floss, such as, hydrocarbon waxes, both microcrystalline and paraffinic waxes, polyethylene, polyisobutylene, polybutadiene, copolymers of butadiene and styrene, copolymers of butadiene and acrylonitrile, polyisoprene, copolymers of butadiene and isoprene. polyethylacrylate. and various mixtures thereof.
Most preferred compositions include the microcrystalline and paraffinic hydrocarbon waxes, polyethylene, and their mixtures.
The polishing agent embedded in the matrix may be any inert, non-toxic, finely divided particulate material having a hardness on the Mohs scale of at least about 2.0 and a particle size in the range of about 1 to 100 microns. For example, the polishing agent may be an oxide, silicate, carbide, boride, carbonate, phosphate, sulfide or nitride of such elements as calcium, magnesium, silicon, aluminum, iron, titanium, zinc, tungsten, zirconium, tin, sodium and potassium, and their mixtures. Particularly preferred are such materials as pumice, talc, calcium carbonate, calcium silicate, zirconium oxide, zircon, alumina, alumina hydrate and the like.
The polishing agent, such as one of the aforementioned compositions, is incorporated in the elastomeric matrix in amounts such that the elastic properties of the matrix are maintained, and that sufficient elastomeric material surrounds the particle so that the particle can float free in the matrix. It is also desirable for as large a number of the particles as possible to be exposed on the surface of the matrix so as to exert a more effective polishing action on the teeth. It is therefore preferred that the polishing agent be incorporated into the matrix in a weight ratio of polishing agent to the matrix of from about 1:5 to 5.5:], however ratios of from about 1:10 to 10:1 may also be effectively utilized.
The coating on the fiber may be applied by any one of a number of methods known in the art. For example, the fiber can be guided through a liquid bath of the coating material wherein the material may be a polymer or a solvent solution of a polymer containing a suspension of the finely divided polishing agent, and then passed through a heated die or an extruder to remove excess polymer, and, if necessary, to cure the polymer. It is also feasible by this method to periodically lift the fiber out of the coating bath and to reimmerse it at regular intervals to obtain a floss with combination of lengths of coated and uncoated surfaces.
In another procedure, the fiber may be passed through a liquid bath of polymer or solution of the polymer, then through a die or a wire-coater, and the tacky polymer coated fiber may subsequently be guided through a fluid or a solid bed of the particulate polishing agent, and then heated to effect a cure.
It is also contemplated to be within the scope of this invention to incorporate various adjuvant materials into the coating agent, such as, coloring matter, flavoring agents, medicinals or therapeutic agents.
The following examples serve to illustrate the present invention, but the scope of this invention is not to b limited by these examples.
EXAMPLE 1 Into a flask equipped with a magnetic stirrer were added 25 grams of a microcrystalline hydrocarbon wax (Quaker State White Superflex L-SOO) heated to C,
and 25 grams of pumice (Whip Mix Corp. Italian R- 400A). Unwaxed dental floss composed of nylon fiber yarn was guided through a bath of the wax mixture by means of a fork guide, and the wax-coated nylon fiber was then passed through a split brass die positioned above the coating bath so that excess wax could drip back into the bath. The die had an opening with a diameter of 0.01 inch and was heated to 90C by means of a winding of electric tape. On leaving the heated die the wax mixture coating on the floss solidified rapidly, and the floss was subsequently wound on a spool. The dental floss prepared as described above was field tested and was found to have a very satisfactory polishing action on the teeth, without any evidence of waxy deposit remaining or abrasive action on the surface of the teeth due to the coated dental floss.
EXAMPLE 2 The procedure of Example 1 was repeated with the exception that calcium silicate was substituted for pumice as the polishing agent, and the same satisfactory results were obtained with this floss.
EXAMPLE 3 Example 1 was repeated employing zirconium silicate, (obtained from the Zirconium Corporation of America) as the polishing agent and the same satisfactory test results were obtained.
EXAMPLE 4 Example 1 was repeated employing calcium carbonate as the polishing agent, and the test results were satisfactory.
EXAMPLE 5 Example 1 was repeated with the exception that a polymeric substrate consisting of a low molecular weight branched polyethylene was substituted for the microcrystalline hydrocarbon wax, and the same satisfactory results were obtained.
1. Dental floss coated with a coating agent comprising a water-insoluble, resilient matrix which is selected from the group consisting of hydrocarbon waxes. polycthylene, polyisobutylene, pol'ybutadiene, copolymers of butadiene and styrene. copolymers of butadiene. and acrylonitrile, polyisoprene, copolymers of butadiene and isoprene, polyethylacrylate, and mixtures thereof, and a polishing agent embedded therein which is selected from the group consisting of an oxide, silicate. carbide, boride, carbonate. phosphate, sulfide or nitride of the elements: calcium, magnesium, silicon, aluminum, iron, titanium. zinc, tungsten, zirconium, tin, sodium and potassium, and their mixtures.
2. The dental floss in claim 1 wherein the polishing agent is incorporated in the matrix in a weight ratio of polishing agent ot matrix of from about 1:5 to 5.521.
3. The dental floss in claim 2 wherein the matrix consists of hydrocarbon wax.
4. The dental floss in claim 2 wherein the matrix consists of branched polyethylene.
5. The dental floss in claim 2 wherein the polishing agent consists of pumice.
6. The dental floss in claim 2 wherein the polishing agent consists of calcium silicate.
7. The dental floss in claim 2 wherein the polishing agent consists of calcium carbonate.
8. The dental floss in claim 2 wherein the polishing agent consists of alumina hydrate.
9. The dental floss in claim 2 wherein the polishing agent consists of zirconium silicate.
10. The dental floss in claim 3 wherein the polishing agent consists of pumice.
11. The dental floss in claim 2 wherein the matrix consists of a mixture of hydrocarbon wax and branched polyethylene and the polishing agent consists of pumice.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2700636 *||Jan 13, 1953||Jan 25, 1955||Johnson & Johnson||Gum-impregnated dental floss|
|US3330732 *||Jun 11, 1964||Jul 11, 1967||Indiana University Foundation||Cleaning and polishing agent for dental prophylaxis|
|US3699979 *||Apr 8, 1971||Oct 24, 1972||Indiana University Foundation||Impregnated article for cleaning the interproximal surfaces of the teeth|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3957067 *||Apr 16, 1975||May 18, 1976||Ferraro Kenneth N||Durable dental floss|
|US4033365 *||Jan 23, 1976||Jul 5, 1977||Johnson & Johnson||Flavored dental articles|
|US4142538 *||Jan 17, 1977||Mar 6, 1979||Thornton Thomas F||Different stiffness continuous length teeth cleaner|
|US4414990 *||Apr 2, 1982||Nov 15, 1983||Johnson & Johnson Products, Inc.||Fluoridated dental articles|
|US4554154 *||Mar 12, 1984||Nov 19, 1985||White Maurice J E||Dental product and method of dental treatment|
|US4942034 *||Nov 14, 1988||Jul 17, 1990||Hill Ira D||Dental stimulator|
|US4986288 *||Mar 23, 1988||Jan 22, 1991||Colgate-Palmolive Company||Dental floss and picks|
|US4996056 *||Aug 14, 1989||Feb 26, 1991||Westone Products Limited||Dental floss and tape|
|US5040554 *||Dec 29, 1989||Aug 20, 1991||Rosenberger Edwin D||Germicidal dental floss and method for fabrication|
|US5094255 *||Feb 8, 1989||Mar 10, 1992||Ringle Larry L||Acrylic dental floss and method for manufacture|
|US5098711 *||Dec 20, 1989||Mar 24, 1992||Ira Hill||Method of treating the oral cavity with dental floss containing chemotherapeutic agents|
|US5165913 *||Aug 29, 1991||Nov 24, 1992||Ira Hill||Controlled release interproximal delivery system|
|US5226435 *||Dec 17, 1991||Jul 13, 1993||Gillette Canada Inc.||Flavored dental floss and method|
|US5284169 *||May 15, 1992||Feb 8, 1994||Gillette Canada, Inc.||Method of producing a thin brush dental floss|
|US5311889 *||Feb 1, 1993||May 17, 1994||Csm Patents, Inc.||Dental floss & pre-threaded leader|
|US5357990 *||Mar 10, 1993||Oct 25, 1994||Gillette Canada Inc.||Flavored dental floss and process|
|US5413127 *||Feb 13, 1991||May 9, 1995||Jordan A/S||Dental floss or tape|
|US5433226 *||Mar 9, 1994||Jul 18, 1995||Delta Dental Hygienics, L.L.C.||Dental floss based on robust segmented elastomer|
|US5501734 *||May 26, 1994||Mar 26, 1996||Gillette Canada, Inc.||Yarn coating assembly and applicator|
|US5505216 *||Feb 24, 1995||Apr 9, 1996||Gillette Canada Inc.||Thin floss brush|
|US5526831 *||May 26, 1994||Jun 18, 1996||Gillette Canada, Inc.||Dental floss manufacturing process and product|
|US5558901 *||May 26, 1994||Sep 24, 1996||Gillette Canada, Inc.||Floss yarn bulking assembly and method|
|US5692530 *||Sep 21, 1995||Dec 2, 1997||Anchor Advance Products, Inc.||Braided dental floss|
|US5732721 *||Oct 21, 1996||Mar 31, 1998||Pelok; Brett S.||Dental floss with a pressure sensitive material|
|US5755243 *||Jun 27, 1996||May 26, 1998||Gillette Canada, Inc.||Dental floss with thermoplastic coating|
|US5780099 *||Jul 9, 1996||Jul 14, 1998||Gillette Canada, Inc.||Floss yarn bulking assembly and method|
|US5845652 *||Jun 6, 1995||Dec 8, 1998||Tseng; Mingchih M.||Dental floss|
|US5904152 *||Apr 8, 1997||May 18, 1999||Gillette Canada Inc.||Dental floss|
|US5918609 *||Oct 24, 1996||Jul 6, 1999||Gillette Canada Inc.||Particulate modified elastomeric flosses|
|US5967153 *||Oct 15, 1996||Oct 19, 1999||Gillette Canada Inc.||Emulsion coated dental floss containing chemotherapeutic active agents|
|US6027592 *||Apr 8, 1997||Feb 22, 2000||Gillette Canada Inc.||Dental floss|
|US6039054 *||Sep 23, 1998||Mar 21, 2000||Gillette Canada Company||Dental floss|
|US6192896 *||Jul 6, 1999||Feb 27, 2001||Gillette Canada Company||Particulate modified elastomeric flosses|
|US6220256||Feb 19, 1999||Apr 24, 2001||Gore Enterprise Holdings, Inc.||Dental floss holder and improved dental floss|
|US6293287||Sep 13, 1996||Sep 25, 2001||Gillette Canada Inc.||UV-cured resin-coated dental floss|
|US6453912||Oct 16, 2001||Sep 24, 2002||Steven M. Antler||Dental floss with abrasives|
|US6591844||Aug 23, 2001||Jul 15, 2003||Peri-Deat Limited||Elastomeric monofilament dental tapes|
|US6619299 *||Dec 17, 2001||Sep 16, 2003||Robert Victor Marcon||Flavor enhanced whitening dental floss|
|US6619300 *||Dec 17, 2001||Sep 16, 2003||Robert Victor Marcon||Flavor enhanced protective dental floss|
|US7025986||Feb 11, 2002||Apr 11, 2006||International Tape Partners Llc||Micromesh interproximal devices|
|US7152611||Dec 30, 2002||Dec 26, 2006||International Tape Partners, Llc||Coated multifilament dental devices overcoated with imbedded particulate|
|US7331788 *||Dec 16, 2004||Feb 19, 2008||Kerrhawe Sa||Clamping cord with polymeric wedge component, and method of affixation|
|US7537450||Oct 26, 2001||May 26, 2009||Dentsply Canada Ltd.||Interproximal tooth coating applicator|
|US8011924||Oct 24, 2007||Sep 6, 2011||Kerrhawe Sa||Clamping cord with polymeric wedge component, and method of affixation|
|US8316865||Nov 27, 2012||Mcneil-Ppc, Inc.||Process for winding dental tape|
|US8800574||Dec 3, 2012||Aug 12, 2014||Linda A. Hanrahan||Fluffy floss kit|
|US8814571||Apr 17, 2009||Aug 26, 2014||Dentsply Canada Ltd.||Interproximal tooth coating applicator|
|US20020081550 *||Oct 26, 2001||Jun 27, 2002||Naim Karazivan||Interproximal tooth coating applicator|
|US20030168077 *||Dec 30, 2002||Sep 11, 2003||Brown Dale G.||Coated micromesh dental devices overcoated with imbedded particulate|
|US20030178044 *||Feb 11, 2002||Sep 25, 2003||Brown Dale G.||Micromesh interproximal devices|
|US20030230319 *||Jun 13, 2003||Dec 18, 2003||Marcon Robert Victor||Flavor enhanced dental floss|
|US20040063075 *||Jun 11, 2001||Apr 1, 2004||Naim Karazivan||Applicator and method for applying a sealing agent on smooth dental surface, in particular on interproximal surfaces|
|US20040123877 *||Dec 30, 2002||Jul 1, 2004||Brown Dale G.||Coated multifilament dental devices overcoated with imbedded particulate|
|US20050161058 *||Jan 26, 2004||Jul 28, 2005||Israel Yerushalmy||Spider silk dental floss|
|US20060112968 *||Jan 13, 2006||Jun 1, 2006||Brown Dale G||Particulate coated monofilament devices|
|US20060134579 *||Dec 16, 2004||Jun 22, 2006||Kerrhawe Sa Of Via Strecce||Clamping cord with polymeric wedge component, and method of affixation|
|US20060243297 *||Apr 29, 2005||Nov 2, 2006||Brown Dale G||Coated monofilament oriented HDPE dental tapes|
|US20060243298 *||Apr 7, 2006||Nov 2, 2006||The Procter & Gamble Company||Dental floss compositions comprising menthol and carboxamides|
|US20080090204 *||Oct 24, 2007||Apr 17, 2008||Kerrhawe Sa||Clamping cord with polymeric wedge component, and method of affixation|
|US20080178904 *||Jan 29, 2007||Jul 31, 2008||Cassie Peters||Toothpick device|
|US20100024721 *||Feb 4, 2010||Harold Ochs||Apparatus for Coating Dental Tape|
|US20100024722 *||Aug 4, 2008||Feb 4, 2010||Harold Ochs||Apparatus for Coating Dental Tape|
|US20100028527 *||Aug 4, 2008||Feb 4, 2010||Harold Ochs||Process for Coating Dental Tape|
|US20100203467 *||Aug 12, 2010||Dentsply Canada Ltd.||Interproximal tooth coating applicator|
|USRE35439 *||Dec 22, 1994||Feb 4, 1997||Rosenberger; Edwin D.||Germicidal dental floss and method for fabrication|
|EP0358363A1 *||Aug 18, 1989||Mar 14, 1990||Westone Products Limited||Dental floss and tape|
|EP0597005A1 *||Jul 24, 1992||May 18, 1994||Gillette Canada Inc.||Improved flavored dental floss and method|
|EP0637446A1 *||Jun 7, 1994||Feb 8, 1995||JOHNSON & JOHNSON CONSUMER PRODUCTS, INC.||Dental floss provided with chemotherapy agents|
|EP0764431A2 *||Sep 20, 1996||Mar 26, 1997||Anchor Advanced Products, Inc.||Braided dental floss|
|EP0832615A1 *||Jul 24, 1992||Apr 1, 1998||Gillette Canada Inc.||Improved flavored dental floss and method|
|EP0836837A1 *||Jul 24, 1992||Apr 22, 1998||Gillette Canada Inc.||Improved flavored dental floss|
|EP1418859A1 *||Aug 23, 2001||May 19, 2004||Dale G. Brown||Monofilament dental tapes with soft abrasive coatings|
|WO1991008716A1 *||Mar 26, 1990||Jun 27, 1991||Whitehill Oral Technologies, Inc.||Method of treating the oral cavity with dental floss containing chemotherapeutic agents|
|WO1997049352A1 *||Jun 17, 1997||Dec 31, 1997||Gillette Canada Inc.||Dental floss with thermoplastic coating|
|WO1998000073A1 *||Jun 10, 1997||Jan 8, 1998||Mcneil-Ppc, Inc.||Dental floss with increased loading weight|
|WO1998017197A1 *||Oct 20, 1997||Apr 30, 1998||Gillette Canada Inc.||Particulate modified elastomeric flosses|
|WO2003086230A1 *||Apr 5, 2002||Oct 23, 2003||Staino, Llc||Dental floss with abrasives|
|International Classification||A61K8/02, A61C15/04, A61Q11/00|
|Cooperative Classification||A61K8/02, A61C15/041, A61Q11/00|
|European Classification||A61C15/04B, A61K8/02, A61Q11/00|