Dental resin cements having improved handling properties

Details Dental resin cements having improved handling properties Dental resin cements having improved handling properties

2005-09-06

2005-09-06

Szekely, Peter (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C433S215000, C433S228100, C523S115000, C523S118000, C524S533000, C524S556000, C524S559000, C526S323100

Reexamination Certificate

active

06939900

ABSTRACT:
Dental resin cement materials having unique handling properties are provided that comprise a) filler, b) polymerizable resin, and c) a polymeric handling modifier that is dispersed in the polymerizable resin at 25° C. and that has a molecular weight of between about 500 and 100,000. Components a) b) and c) are present in an amount effective to achieve a Viscosity vs Shear Rate Curve that fits a power law model of F(x)=AxB. The correlation value of the material to this curve is greater than 0.85 for both the increasing and decreasing shear rate curves, and the value of B is less than about −0.01.Resin cements are also provided that comprise acid functionality and water, but which do not comprise an acid reactive filler. Such cements may be self etching, thereby avoiding the need to carry out a separate acid etch step.

REFERENCES:
patent: 3018262 (1962-01-01), Schroeder
patent: 3117099 (1964-01-01), Proops et al.
patent: 3513123 (1970-05-01), Saffir
patent: 3655605 (1972-04-01), Smith
patent: 3814717 (1974-06-01), Wilson et al.
patent: 4143018 (1979-03-01), Crisp
patent: 4209434 (1980-06-01), Wilson et al.
patent: 4360605 (1982-11-01), Schmitt et al.
patent: 4376835 (1983-03-01), Schmitt et al.
patent: 4411625 (1983-10-01), Koblitz et al.
patent: 4503169 (1985-03-01), Randklev
patent: 4540723 (1985-09-01), Ying
patent: 4615665 (1986-10-01), Tateosian et al.
patent: 4648844 (1987-03-01), Omura et al.
patent: 4695251 (1987-09-01), Randklev
patent: 4746686 (1988-05-01), Waller
patent: 4792577 (1988-12-01), Chen et al.
patent: 4859716 (1989-08-01), Ibsen et al.
patent: 5034433 (1991-07-01), Cohen et al.
patent: 5154762 (1992-10-01), Mitra et al.
patent: 5204398 (1993-04-01), Cohen et al.
patent: 5332429 (1994-07-01), Mitra et al.
patent: 5403188 (1995-04-01), Oxman et al.
patent: 5530038 (1996-06-01), Yamamoto et al.
patent: 5709548 (1998-01-01), Oxman et al.
patent: 5753781 (1998-05-01), Oxman et al.
patent: 5965632 (1999-10-01), Orlowski et al.
patent: 6057383 (2000-05-01), Völkel et al.
patent: 6506816 (2003-01-01), Ario et al.
patent: 0 438 629 A2 (1991-07-01), None
patent: 0 533 434 (1992-09-01), None
patent: WO 97/18792 (1997-05-01), None
Handbook of Epoxy Resins By Lee and Neville, McGraw-Hill Book CO., New York (1967).
Aldrich Catalog; Milwaukee, Wisconsin; Title page, Publication Page, Table of Contents, and pp. 214 and 215 (5 pp. total) (2000-2001).
Sartomer Product Bulletin: SR-348, “Ethoxylated(3)Bisphenol A Dimethacrylate,” Exton, PA; 1 page (Jan., 1999).
Sartomer Product Bulletin: CD-540, “Ethoxylated(4)Bisphenol A Dimethacrylate,” Exton, PA; 1 page (Oct., 1998).
Sartomer Product Bulletin: CD-541, “Ethoxylated(6)Bisphenol A Dimethacrylate,” Exton, PA; 1 page (Oct., 1998).
Sartomer Product Bulletin: SR-480, “Ethoxylated(10)Bisphenol A Dimethacrylate,” Exton, PA; 1 page (Nov., 1998).
Sartomer Product Bulletin: SR-9036, “Ethoxylated(30)Bisphenol A Dimethacrylate,” Exton, PA; 1 page (Jul., 1997).
Sartomer Product Bulletin: SR-602, “Ethoxylated(10)Bisphenol A Diacrylate,” Exton, PA; 1 page (Dec., 1998).
Wilson et al., “Chapter 2: Compositions,”Glass-Ionomer Cement; Quintessence Books; Chicago, London,Berlin, Sao Paulo, Tokyo, and Hong Kong; Title page, Table of Contents, and pp. 21-39 (1988).
Zwemer, Ed.;Mosby's Dental Dictionary; Mosby, Inc., St. Louis, Missouri; Title page, Publication page, and pp. 79-80 (4 pp. total) (1998).

Affiliated with

Also associated with

Rating

Dental resin cements having improved handling properties does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dental resin cements having improved handling properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dental resin cements having improved handling properties will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3425761