| Acr | acrylic |
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| AA | Acrylic acid |
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| AAc | Acrylic acid |
| acrylic | <dentistry> A plastic used to false teeth, retainers, and other dental products. Dental acrylic has been tested and thought to be perfectly safe. (08 Jan 1998) |
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| acrylic acids | A series of unsaturated aliphatic acids of the general formula R==CH-COOH; the prototype, acrylic acid (R=CH2) or 2-propenoic acid, is derived from propionic acid by reduction or from glycerol by dehydration. Synonym: acroleic acids. (05 Mar 2000) |
| acrylic resin | A general term applied to a resinous material of the various esters of acrylic acid; used as a denture base material, for other dental restorations, and for trays. (05 Mar 2000) |
| acrylic resin base | A form made of acrylic resin molded to conform to the tissues of the alveolar process and used to support the teeth of a prosthesis. (05 Mar 2000) |
| acrylic resin tooth | A tooth made of acrylic resin. (05 Mar 2000) |
| carbacrylamine resins | A mixture of the cation-exchange resin's, carbacrylic resin and potassium carbacrylic resin (87.5%) and of the anion-exchange resin, polyamine-methylene resin (12.5%), used to increase the faecal excretion of sodium in oedema associated with excessive sodium retention by the kidneys, e.g., in congestive heart failure, cirrhosis of the liver, and nephrosis. (05 Mar 2000) |
| cation exchange resins | High molecular weight insoluble polymers which contain functional cationic groups that are capable of undergoing exchange reactions; used in various types of chromatography; also to treat hyperkalaemia. (12 Dec 1998) |
| resins | Flammable, amorphous, vegetable products of secretion or disintegration, usually formed in special cavities of plants. They are generally insoluble in water and soluble in alcohol, carbon tetrachloride, ether, or volatile oils. They are fusible and have a conchoidal fracture. They are the oxidation or polymerization products of the terpenes, and are mixtures of aromatic acids and esters. most are soft and sticky, but harden after exposure to cold. (12 Dec 1998) |
| resins, synthetic | Polymers of high molecular weight which at some stage are capable of being molded and then harden to form useful components. (12 Dec 1998) |
| composite resins | Synthetic resins, usually acrylic based, to which a high percentage (usually about 75% to 80%) of an inert filler has been added. Glass beads or rods, borosilicate glass powder, and natural silica are the most commonly used fillers. Filler particles are coated with a coupling agent that binds the particles to the resin matrix. They are used chiefly in dental restorative procedures. (12 Dec 1998) |
| direct acrylic restoration | A direct resin restoration of autopolymerizing acrylic. (05 Mar 2000) |
| ion exchange resins | <chemistry> High molecular weight, insoluble polymers which contain functional groups that are capable of undergoing exchange reactions (ion exchange) with either cations or anions. See: ion exchange, ion exchanger. (12 Dec 1998) |
| epoxy resins | Thermosetting resins based on the reactivity of the epoxide group, which is characterised by toughness, adhesibility, chemical resistance, dielectric properties, and dimensional stability. Several modified types are used as denture base material. (12 Dec 1998) |
| 3-(2,4--dioxo-6-methyl-5-pyrimidinyl)acrylic acid synthase | <enzyme> Involved in sparsomycin biosynthesis; catalyses conversion of 3-(4-oxo-6-methyl-5-pyrimidinyl)acrylic acid to 3-(2,4-dioxo-6-methyl-5-pyrimidinyl)acrylic acid Registry number: EC 1.14.13.- Synonym: (e)-uca synthase (26 Jun 1999) |
Synonyms : Resins, Acrylic
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