Crystal gels useful as dental floss with improved high tear, hig

Toilet – Toothpick

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

132323, 132329, A61C 1500

Patent

active

061615552

DESCRIPTION:

BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION

The present invention relates to dental floss and gum massager.


BACKGROUND ART

Thermoplastic elastomer SEBS gels are described in Pat. Nos. 5,334,646, 5,508,334, 5,262,468, 5,153,254, 4,618,213; and 4,369,284. These gels can be use for flossing because of their extreme softness and strength. The SEBS and SEPS triblock copolymer oil gels, however, do not have sufficient resistance to tearing when the gel is repeatedly notched or nicked by inserting and re-inserting between the teeth gaps while at the same time applying constant tension to the floss. This failure makes triblock copolymer gels much less desirable and commercially useless and unacceptable to the flossing consumer.


DISCLOSURE OF INVENTION

1. Statement Of The Invention
I have discovered an improved dental floss and gum massager made from novel compositions comprising gels with improved high tear strength, improved high tensile strength, and improved resistance to high stress rupture. The improved gels can be formed into gel strands, gel tapes, and gel sheets for massaging the gum and flossing the teeth. The gel floss can be in the form of strands and tapes when rapped around the fingers for holding, extending, and flossing are advantageously more comfortable and less restricting to blood circulation in the fingers than conventional dental floss. When the gel floss is in the form of a sheet, it is additionally advantages for the sheet to have at least two separate selective sized holes at a selective distance apart for holding said sheet by one or more fingers of one or both hands, said sheet having a selected shaped peripheral sheet edge of a selective thickness, said holes being a selective distance from said edge and sized for insertion through by at least one said finger of each hand for holding said sheet and gripping, pulling, pushing, deforming, working, deforming, manipulating, folding and guilding said sheet edge for massaging the gum and flossing the teeth without substantial constriction of blood flow of said fingers by said sheet.
I have now discovered gels with improved damage tolerance, crack propagation resistance and tear resistance which are advantageously suitable for use as dental floss that are from about twice to about ten times or better in lowering the gap insertion breaking frequency than same rigidity gels made from triblock copolymer oil gels alone.
The invention comprises gels and articles useful as floss made from mixtures of triblock copolymers having at least one different midblock or multiblock copolymers having one, two or more different midblocks which gels exhibit advantages of improved tensile strength, improved tear strength (propagation resistance under tension and continuous notching and nicking) and additionally improved resistance to high stress rupture. Such combination of properties are not found in gels of substantially the same rigidity made from SEBS or SEPS triblock copolymers alone. The gels of the present invention exhibit low set, high dimensional stability, crack, tear, craze, and creep resistance under tension, excellent tensile strength and high elongation, long service life under shear, stress and strain and capable of withstanding repeated dynamic shear, tear and stress forces, excellent processing ability for cast molding, extruding, fiber forming film forming and spinning, non-toxic, nearly tasteless and odorless, soft and strong, optically clear, highly flexible, possessing elastic memory, substantially with little or no plasticizer bleedout. The gels are especially advantageously suitable where resistance to crazing, cracking, fracturing, and catastrophic failure while under dynamic stretch tension loads in an environment where continuous or repeated shearing, cutting, nicking, notching, lacerating, mutilating, and tearing of the gel in contact with or between other bodies (i.e., abraded by repeated contact with another body or bodies) are encountered, such as those forces acting during dental flossing. The resistance to tear propagation or ability t

REFERENCES:
patent: 3660849 (1972-05-01), Jonnes
patent: 3821148 (1974-06-01), Makowski
patent: 3821149 (1974-06-01), Makowski
patent: 3827999 (1974-08-01), Crossland
patent: 3860013 (1975-01-01), Czapor
patent: 4136699 (1979-01-01), Collins
patent: 4151057 (1979-04-01), St. Clair
patent: 4176240 (1979-11-01), Sabia
patent: 4259540 (1981-03-01), Sabia
patent: 4351913 (1982-09-01), Patel
patent: 4361508 (1982-11-01), Bourland
patent: 4369284 (1983-01-01), Chen
patent: 4432607 (1984-02-01), Levy
patent: 4450849 (1984-05-01), Cerceo et al.
patent: 4492428 (1985-01-01), Levy
patent: 4497538 (1985-02-01), Patel
patent: 4509821 (1985-04-01), Stenger
patent: 4600261 (1986-07-01), Debbaut
patent: 4610738 (1986-09-01), Jervis
patent: 4618213 (1986-10-01), Chen
patent: 4643924 (1987-02-01), Uken
patent: 4662692 (1987-05-01), Uken
patent: 4678664 (1987-07-01), Schmolka
patent: 4680233 (1987-07-01), Camin
patent: 4690831 (1987-09-01), Uken
patent: 4692369 (1987-09-01), Nomi
patent: 4709982 (1987-12-01), Corne
patent: 4716183 (1987-12-01), Gamarra
patent: 4721832 (1988-01-01), Toy
patent: 4764535 (1988-08-01), Leicht
patent: 4798853 (1989-01-01), Handlin
patent: 4801346 (1989-01-01), Huddleston
patent: 4822834 (1989-04-01), Blevins
patent: 4833193 (1989-05-01), Sieverding
patent: 4842931 (1989-06-01), Zook
patent: 4864725 (1989-09-01), Debbaut
patent: 4865905 (1989-09-01), Uken
patent: 4880676 (1989-11-01), Pulgcerver
patent: 4880878 (1989-11-01), Himes
patent: 4883431 (1989-11-01), Uken
patent: 4888070 (1989-12-01), Clark
patent: 4889171 (1989-12-01), Covington
patent: 4889403 (1989-12-01), Zucker
patent: 4900877 (1990-02-01), Dubrow
patent: 4909756 (1990-03-01), Jervis
patent: 4929211 (1990-05-01), Resnick
patent: 4942270 (1990-07-01), Gamarra
patent: 4944363 (1990-07-01), Osher
patent: 4944973 (1990-07-01), Follette
patent: 4968747 (1990-11-01), Mallikarjun
patent: 4983008 (1991-01-01), Campbell
patent: 5026054 (1991-06-01), Osher
patent: 5059748 (1991-10-01), Allen
patent: 5068138 (1991-11-01), Mitchell
patent: 5085597 (1992-02-01), Story
patent: 5088734 (1992-02-01), Glava
patent: 5098421 (1992-03-01), Zook
patent: 5126182 (1992-06-01), Douglas
patent: 5149736 (1992-09-01), Gamarra
patent: 5153254 (1992-10-01), Chen
patent: 5159022 (1992-10-01), Ikematu
patent: 5167649 (1992-12-01), Zook
patent: 5173573 (1992-12-01), Jervis
patent: 5177143 (1993-01-01), Toy
patent: 5181914 (1993-01-01), Zook
patent: 5191752 (1993-03-01), Murphy
patent: 5221534 (1993-06-01), Deslauriers
patent: 5239723 (1993-08-01), Chen
patent: 5262468 (1993-11-01), Chen
patent: 5313019 (1994-05-01), Brusselmans
patent: 5324222 (1994-06-01), Chen
patent: 5330452 (1994-07-01), Zook
patent: 5334646 (1994-08-01), Chen
patent: 5336708 (1994-08-01), Chen
patent: 5459193 (1995-10-01), Anderson
patent: 5475890 (1995-12-01), Chen
patent: 5479952 (1996-01-01), Zachariades
patent: 5508334 (1996-04-01), Chen
patent: 5559165 (1996-09-01), Paul
patent: 5606149 (1997-02-01), Yaworski
patent: 5618882 (1997-04-01), Hammond et al.
patent: 5624294 (1997-04-01), Chen
patent: 5626657 (1997-05-01), Pearce
patent: 5633286 (1997-05-01), Chen
patent: 5655947 (1997-08-01), Chen
patent: 5863977 (1999-01-01), Fisher
patent: 5872201 (1999-02-01), Cheung
patent: 5929138 (1999-07-01), Mercer
patent: 5952396 (1999-09-01), Chang
patent: 5994446 (1999-11-01), Graykys
patent: 5994450 (1999-11-01), Pearce
"Styrene-Diene Triblock Copolymers: Orientation Conditions and Mechanical Properties of the Oriented Materials" A. Weill and R. Pixa, Journal of Polymer Science Polymer Symposium 58, 381-394 (1977).
Tuftec Trade Literature, Asani Chemical Co., Ltd., Synthetic Rubber Division, English and Japanese 14 Pages.
Septon Trade Literature, Kuraray Co., Ltd. 1995.8 (4,000) 15 Pages.
Shell Chemical Co., Data Sheets: EKP-207 (093094-02) and L-1203 (SC:2384-950.
SC:1102-89 Shell Chemical Technical Bulletin "Kraton.RTM.Thermoplastic Rubber in Oil Gels", Apr. 1989.
"Tuftec"--its characteristics and applications, Assahi Chemical.
Septon, High Per

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Crystal gels useful as dental floss with improved high tear, hig does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Crystal gels useful as dental floss with improved high tear, hig, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystal gels useful as dental floss with improved high tear, hig will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-263583

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.