Dentin bonding system

Details Dentin bonding system Dentin bonding system

1993-10-29

1994-09-20

Skane, Christine

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

Synthetic resins

Processes of preparing a desired or intentional composition...

106 35, C08K 509

Patent

active

053489888

ABSTRACT:
Novel unsaturated carboxy esters for use in dentistry as bonding agents are produced by a reaction of unsaturated alcohols with cyclic acid dianhydrides. The dianhydrides which can be used in the invention are in general symmetrical compounds having an aromatic nucleus substituted with four carboxylic acid groups from which two moles of water have been removed to form two cyclic anhydride groupings. The unsaturated alcohols used for making the unsaturated carboxy esters have the formula ##STR1## wherein R is H or CH.sub.3, R.sub.1 is H, CH.sub.3, or .dbd.CH.sub.2,

REFERENCES:
patent: 4514527 (1985-04-01), Bowen

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