Abstract: A fluorine-containing copolymer comprising 20 to 60% by mole of the fluoroolefin unit (1), 5 to 45% by mole of the .beta.-methyl substituted .alpha.-olefin unit (2), 1 to 45% by mole of the unit (3) derived from a monomer having a chemically curable functional group, 1 to 45% by mole of the unit (4) derived from a monomer having ester moieties in the side chains and 0 to 45% by mole of the unit (5) derived from a copolymerizable monomer other than the above monomers, if necessary, 0.1 to 15% by mole of the unit (6) derived from a monomer having carboxyl groups. The copolymer can provide a curable composition alone or with an acrylic polymer. The fluorine-containing copolymer is excellent in solvent-solubility, compatibility with curing agents, additives and other polymers, pigment dispersibility, curing reactivity, dispersibility to water, pot life, film forming ability, coating properties, and the like.

Abstract: A novel latex is derived from a crosslinked carboxylate latex containing from 1-20 phr of itaconic acid (IA) and at least 70 phr of one or more copolymerizable monomers one of which is an acrylate having the structure ##STR1## wherein R.sub.1 is hydrogen or methyl; R.sub.2 represents C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.7 alkoxyalkyl, C.sub.2 -C.sub.7 alkylthioalkyl, or C.sub.2 -C.sub.7 cyanoalkyl; andat least 40 phr of said acrylate in said film is present as an alkyl acrylate in which alkyl is C.sub.4 -C.sub.8. The latex can only be formed in an aqueous medium by an emulsion polymerization process in which at least one-half of the IA is initially charged into a reactor, and the remaining ingredients of the recipe then added gradually. This unique order of addition produces a highly stable latex of polymer particles having a glass transition temperature (T.sub.g) in the range from about -20.degree. C. to about -60.degree. C.

Abstract: A crude drug ingredient having bactericidal activity incorporated into a curable composition comprising a (meth)acrylate type monomer, a polymerization initiator and if necessary a filler to formulate the ingredient into the drug having sustained release property. The curable composition containing the crude drug ingredient is applied to a defective part of a tooth or an artificial gum for preventing dental diseases such as carious tooth, pyorrhea alveolaris, and the like.

Abstract: Aqueous, electro-dipping varnish/coating material, which can be deposited at the cathode and which contains(A) as cationic synthetic resin binder, an amino group-containing carrier resin with an amine number of 50 to 200 and a hydroxyl number of 50 to 400,(B) as nonionic synthetic resin binder, a water-insoluble wire-coating resin from the group of polyesterimides, polyesteramidimides and polyhydantoins with a melting point higher than 60.degree. C. in an amount of 50 to 2000 parts by weight per 100 parts by weight of component A, and(C) transesterification catalysts, which are essentially stable in water, in an amount of 0.1 to 5 parts by weight per 100 parts by weight of the sum of components A and Band processes for coating electrical conductors therewith.

Abstract: An adhesive for the efficient bonding of ceramic tiles and having improved water resistance comprises an emulsion copolymer composition including an acrylate or methacrylate monomer, a vinyl aromatic monomer, and, for reducing water sensitivity, an unsaturated organo-silicon compound. Compositions which are effective in promoting water resistant adhesion may contain as little as from 0.1-1.0% by weight of the unsaturated organosilicon compound.