Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2010-04-16
2011-12-20
Hill, Jr., Robert J (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C433S228100, C106S035000
Reexamination Certificate
active
08080594
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.
REFERENCES:
patent: 4141864 (1979-02-01), Rijke et al.
patent: 4189838 (1980-02-01), Oliva
patent: 4318742 (1982-03-01), Lokken
patent: 4370401 (1983-01-01), Winslow et al.
patent: 4759798 (1988-07-01), von Nostitz
patent: 5202181 (1993-04-01), Hara et al.
patent: 5225315 (1993-07-01), Grosclaude et al.
patent: 5298534 (1994-03-01), Prosise et al.
patent: 5388754 (1995-02-01), Grosclaude et al.
patent: 5391589 (1995-02-01), Kiguchi et al.
patent: 5580940 (1996-12-01), Oosterhoff
patent: 5810595 (1998-09-01), Mallow
patent: 5994484 (1999-11-01), Pocius
patent: 6008308 (1999-12-01), Pocius
patent: 6093778 (2000-07-01), Pocius
patent: 6217894 (2001-04-01), Sawhney et al.
patent: 6306206 (2001-10-01), Fischer et al.
patent: 6353041 (2002-03-01), Qian
patent: 6355704 (2002-03-01), Nakatsuka et al.
patent: 6583197 (2003-06-01), Wada et al.
patent: 6649669 (2003-11-01), Dickens
patent: 6750268 (2004-06-01), Hino
patent: 6814794 (2004-11-01), Allred
patent: 0299157 (2007-12-01), Sang et al.
patent: 7304096 (2007-12-01), Han et al.
patent: 0004365 (2008-01-01), Blackwell
patent: 7476448 (2009-01-01), Natsui et al.
patent: 2006/0216537 (2006-09-01), Natsui et al.
patent: 2007/0183936 (2007-08-01), Newsam et al.
patent: 2010/0321430 (2010-12-01), Koganehira et al.
patent: 1287805 (2003-03-01), None
patent: 5-286822 (1993-11-01), None
patent: 9-157126 (1997-06-01), None
Haddix Steven J.
Haddix Thomas R.
Hill, Jr. Robert J
Litman Richard C.
Salamon Peter A
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