Cement compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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Details

26099811, 20415923, 433228, 526301, 526320, 560 26, 560158, 523212, 523213, 524850, A61K 608, C08K 336, C08K 554, C08F 2602

Patent

active

043471749

ABSTRACT:
A cement composition which comprises a filler, a binder to be used in admixture with the filler, and a curing agent for polymerizing the binder, which is characterized by that the binder comprises, based on the total weight of the binder, 20-100% by weight of (A) a free-radical polymerizable monomer of the following formula: ##STR1## wherein R is a hydrogen atom or a methyl group and X is an organic residue having 1-48 carbon atoms, and 0-80% by weight of (B) a mono-, di- or tri-functional free-radical polymerizable monomer which is copolymerizable with the above monomer (A) is disclosed. By using the above binder, the filler is firmly bonded with each other and gives a cured product having high compressive strength and abrasion resistance. The cement composition is especially useful as dental restorative materials.

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