Patent GB-912063-A (GB)
Title: Polyepoxide bituminous compositions
IPC: C09D163/00
Filed: 1960-03-28
Abstract: Concrete, asphalt, wood and steel (e.g. in the form of floors, roads, airfields, pipes, offshore drilling rigs) may be coated by screed, trowel, shovel, broom, brushing or spraying with a composition comprising (i) a polyepoxide having on the average more than one vicinal epoxy group, (ii) a bituminous material, and (iii) a copolymer of (a) an ethylenically unsaturated monocarboxylic acid containing not more than 8 C and (b) at least one other ethylenically unsaturated compound containing no free carboxyl groups, e.g. a copolymer of an acrylic acid with butadiene and/or styrene.  Many suitable compounds are listed and conventional epoxy resin hardeners may also be added.  An especially preferred composition is one in which aggregate, e.g. sand, is added after the coating has been spread, but some of the particles may be added during the preparation of the composition and the remainder after the coating has been spread; and in general the aggregate may be added before, during or after the coating process.  Other aggregates mentioned are crushed rock, shells, quartz and Al2O3.  The coating is cured by the application of heat, e.g. 100 DEG -250 DEG C., which is applied either by using one or more of the components in a heated form, or by an electric heater or infra-red lamp.  Specifications 730,670 and 819,107 are referred to.ALSO:A composition comprises (i) a polyepoxide having on the average more than one vicinal epoxy group, (ii) a bituminous material, and (iii) a copolymer of (a) an ethylenically unsaturated monocarboxylic acid containing not more than 8C and (b) at least one other ethylenically unsaturated compound containing no free carboxyl groups.  Compounds specified are:-(i) long lists of polyepoxides including epoxidized oils, esters, polyesters, hydrocarbons, addition polymers, and amines; and polyglycidyl ethers of polyhydric phenols and alcohols: exemplified are a glycidyl ether of bisphenol and epoxidized tetrahydrobenzyl tetrahydrobenzoate.  (ii) Long lists of asphalts, petroleum extracts, coal tars and residual fuel oils.  (iii) Copolymers of a long list of (a) with a longer list of (b), the latter including substituted and unsubstituted aromatic and aliphatic hydrocarbons, nitriles, vinyl and allyl ethers, vinyl and allyl esters, acrylates and methacrylates, vinyl chloride, 3-allyl oxypropionaldehyde, and N-allyl acrylamide.  The following copolymers are prepared and/or used:-butadiene/acrylic acid, butadiene/methacrylic acid, butadiene/styrene/acrylic acid, isoprene/acrylic acid and 2-methyl-pentadiene-1,3/acrylic acid. The preparations are conducted in the presence of mesityl oxide and ditertiary butyl peroxide in a nickel reactior under nitrogen, the reagents being added over a period of 3 1/2 hours; it is also stated that other peroxides (lists) and O2\sB N2 or CH4 may be used as catalysts, and various hydrocarbons may be used as solvents.  Conventional epoxy resin hardeners may also be added, e.g. NaOH, KOH, Na phenoxide, oxalic acid, phthalic anhydride, phosphoric acid and lists of Friedel-Crafts catalysts, acid organic phosphates, amines and amides.  The primary use of the compositions is for coating concrete, asphalt, metal or wood (e.g. roads and airfields) in which case there may be added sand, crushed rock, shells, quartz and Al2O3. Specifications 730,670 and 819,107 are referred to.ALSO:A bituminous composition comprises (i) a polyepoxide having on the average more than one vicinal epoxy group, (ii) a bituminous material, and (iii) a copolymer of (a) an ethylenically unsaturated monocarboxylic acid containing not more than 8C and (b) at least one other ethylenically unsaturated compound containing no free carboxyl groups.  Compounds specified are: (i) long lists of polyepoxides: a glycidyl ether of bisphenol and epoxidized tetrahydrobenzyl tetrahydrobenzoate being used in the examples; (ii) long lists of asphalts, petroleum extracts, coal tars and residual fuel oils; (iii) long lists of copolymers, the following being prepared and/or used: butadiene/acrylic acid, butadiene/methacrylic acid, butadiene/styrene/acrylic acid, isoprene/acrylic acid, and 2-methyl-pentadiene-1, 3/acrylic acid. Conventional epoxy resin hardeners may also be added, e.g. NaOH, KOH, Na phenoxide, oxalic acid phthalic anhydride, phosphoric acid and lists of Friedal-Crafts catalysts, acid organic phosphates, amines and amides.  The primary use of the compositions is for coating concrete, asphalt, metal or wood (e.g. roads and airfields) in which case there may be added sand, crushed rock, shells, quartz and AC2O3. Specifications 730,670 and 819,107 are referred to.