Effect of bleaching on subsurface micro-hardness of composite and a
polyacid modified composite.
Fleming, "Conventional glass-ionomer materials: a review of the developments in glass powder,
polyacid liquid and the strategies of reinforcement," Journal of Dentistry, vol.
It depends on a number of factors such as type of
polyacid matrix, concentration of acid solution and power/liquid ratio (9, 22, 23).
In the range of pH values from 5 to 11, the effective viscosity of the bases remains practically unchanged, which can be explained by the complexation of the
polyacid with the amines to be studied.
The polymers are formed by oxidation polymerization of monomers such as pyrrole and thiophene from solutions with
polyacid, water and an aprotic solvent such as N methylformamide.
The hydrophobic
polyacid copolymer dispersant enhances the long-term hiding, tint strength, and gloss of premium interior architectural paints by surrounding pigment particles, effectively keeping them separated over time for long-term paint performance and stability, according to Conley.
The
polyacid solution slowly turned to turbid and then became a translucent solution.
Four types of materials are commonly used for direct restorations: resin composites,
polyacid modified resin composites, glass-ionomer cement and resin modified glass-ionomer cement.
If this is insufficient, the addition of a linear film-forming
polyacid, such as the commercially available car-boxymethycellulose or alginic acid, has been shown in bonding studies to provide acidic coatings strongly adherent to cellulosic fibers.
CCP Composites US LLC has been granted a patent for a thermosetting, crosslinkable resin composition suitable for preparing a gel coat, the composition is comprised of: a polyester acrylic polymer having an average of more than two polymerizable carbon-carbon double bonds in each molecule, the carbon-carbon double bonds in the polyester acrylic polymer being from a reaction product of a saturated
polyacid half-ester having an average acid functionality of two or more and an unsaturated epoxide monomer in about chemically equivalent amounts to furnish one epoxy group per carboxyl group, the saturated
polyacid half-ester being the reaction product of one or more polyols having an average of at least two hydroxy!