Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1996-10-11
2000-05-16
Merriam, Andrew E. C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523113, 524444, 524450, 524533, 524547, 524556, 4332281, A61K 6083, C08K 322
Patent
active
06063832&
ABSTRACT:
A practically non-aqueous dental cement composition is disclosed and the dental cement composition comprises a polymer or co-polymer having an .alpha.,.beta.-unsaturated carboxylic acid as an essential component of a main monomer; and an inorganic powder capable of forming a metal chelate in the presence of water characterized in that the polymer or co-polymer exists as a solution in a polymerizable monomer that can dissolve the polymer or co-polymer. This provides a dental composition which has not only the advantages of the conventional glass ionomer cement but also a higher setting rate and more desirable physical properties of the setting product and is excellent also in durability, by eliminating the disadvantages in the setting rate and physical properties of the set cement.
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John Nicholson et al., The Development of Modified Glass-ionomer Cements for Dentistry, Trends in Polymer Science, vol. 2, No. 8, Aug. 1, 1994.
Kameda Hiroshi
Yuhda Sadayuki
Merriam Andrew E. C.
Sankin Kogyo Kabushiki Kaisha
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