Abstract: A chemically modified asphalt composition is provided which is especially adapted for use in the repair and maintenance of highways. The composition is a reaction product of a high oil asphalt, a vinyl aromatic monomer and a rubbery, or elastomeric, polymer.

Abstract: A pressure-sensitive adhesive is disclosed which is prepared by hot melt blending paving grade asphalt, a depolymerized virgin rubber, a terpene resin, and a vulcanizable, non-depolymerized styrene-butadiene copolymer. These adhesives are especially useful in forming membranes by coating one side of an asphaltic based coated reinforcement with these adhesives. They are useful for highway repair and maintenance purposes and for waterproofing and show good adhesion to cementitious, for example asphaltic concrete or Portland cement concrete, substrates.

Abstract: An anticorrosion perforated foil for fusion onto metal substrates comprising 60 to 90% by weight of bitumen, 0.5 to 7% by weight of styrene-butadiene rubber, 5 to 25% by weight of a bitumen modified with polymers, 0.5 to 7.5% by weight of natural resin and 0.5 to 10% by weight of organic and/or inorganic fibers stable at above 160.degree. C. and its preparation and a method of protecting metal elements from corrosion.

Abstract: Sheet type felt material and sheet type roofing material such as shingles and rolls made therefrom. The felt comprises 10-60 wt % glass fibers of varying lengths, 15-80 wt % cellulosic fiber and 5-25% binder. The roofing material is felt of the invention saturated with asphaltic saturant and coated with filled asphaltic coating material and conventional roofing granules.

Abstract: A geotextile fabric, method of manufacture and method of use, are provided. The composite geotextile fabric has a first group of uncrimped synthetic weft threads, a second group of uncrimped synthetic warp threads not interlaced with the first group, and a knit yarn stitch bonding the warp and weft threads loosely together. A nonwoven filtration fabric may also be included. The composite geotextile fabric may have a controlled extensibility, which preferably is equal to or less than the two to four percent extensibility of asphalt paving, making the fabric suitable for use in repairing cracked road surfaces and the like.

Abstract: The invention concerns a composite article for making coverings, which comprises, in a stratified structure, a self-protecting outer membrane associated at its lower surface with an insulating layer which, in turn, is associated at its lower surface with a waterproofing and self-adhesive layer. The outer self-protecting membrane comprises a bituminous support and is covered on the outside by a protective layer. By means of the article according to the invention, a decorative covering, which comprises a vapor barrier, a thermal insulation, and a waterproof protective layer, is built in a single application phase at room temperature and without the use of adhesives.

Abstract: A glass fiber shingle having random butadiene-styrene copolymer added to the coating asphalt for the glass fiber mat.

Abstract: A preformed membrane, suitable for road surfacing, comprises a layer of a mixture of bitumen, a linear monoalkenyl arene/conjugated diene block copolymer and a branched monoalkenyl arene/conjugated diene block copolymer.

Abstract: A method of coating articles, a coating and a coated article wherein a bitumen primer layer is applied to a base sheet material and while the bitumen primer layer is still wet a layer of a barrier material of a consistency, composition and thickness is applied to the primer layer such that the bitumen primer layer does not bleed through the barrier layer and the barrier layer adheres to the bitumen primer layer. A coating of stone chips is then applied to the barrier layer in a manner such that the stone chips are partially embedded at least in the barrier layer so that the stone chips are held in position on curing of the bitumen primer and barrier layer but the stone chips are not completely covered by the barrier layer.

Abstract: A thin, relatively flexible sheet formed in strips for application upon a roof surface and the like, with successive strips in overlapping relationship, is formed of a lamination of a lower layer made of a low temperature heat softenable material such as asphalt, a thinner middle layer formed of a non-woven fabric of relatively stable fibers, and an upper layer formed of a high temperature melting point monolithic material such as an ethylene vinyl acetate copolymer. Heat is applied, as for example, by a hand operated flame torch, to the lower layer of a strip to soften it. Then the strip is laid upon the surface, with an edge portion overlapping the next adjacent strip previously laid upon the surface so that each strip adheres to the upper layer of the preceding strip upon cooling and solidification of the heat softened asphalt layer.

Abstract: A preformed sheet-like barrier useful for insulating and waterproofing a structure formed from a closed cell porous structure having an adhesive bituminous sheet integrally adhered to one major surface of the structure and having a removable coating substantially coextensive and congruent with the free surface of the bituminous sheet.

Abstract: A preformed sheet-like barrier useful for drainage enhancing away from and waterproofing of a structure, said barrier is formed from an open cell porous structure having an adhesive bituminous sheet integrally adhered to one major surface of the structure and having a removable coating substantially coextensive and congruent with the free surface of the bituminous sheet.

Abstract: A release coating for asphalt roofing sheet material comprises a mixture of fatty acid monoalkanol amides such as a mixture of cocamide MEA and stearamide MEA. The amides may be applied as dilute aqueous solutions or dispersions, and may be used with both asphalt shingles and roll roofing.

Abstract: An improved pre-formed, sheet-like flexible laminate suitable for waterproofing of structural surfaces, the sheet-like material having a laminate structure of (a) a flexible waterproof and waterproofing bituminous membrane and (b) a support sheet material covering at least one major surface of the bituminous membrane; an oil-impermeable polymeric coating being provided between said support sheet material and the adjacent surface of the bituminous membrane to protect the support sheet from adverse effects of oil present in the bituminous membrane.

Abstract: A rubber-modified asphalt composition prepared by reacting a bituminous material with (1) a polymerizable aromatic monomer and (2) a depolymerized rubber whereby the rubber is chemically integrated with the asphalt. The rubber-modified asphalt compositions of the invention can be used in the treatment of glass fibers as well as in road paving applications, roofing applications and the like.

Abstract: Thermally insensitive adhesives having good adhesion to cementitious substrates and having good low temperature flexural strengths, which consists essentially of the reaction product of asphalt flux, a polymerizable vinyl aromatic monomer, a non-depolymerized rubber, a depolymerized rubber and a terpene resin are provided. These adhesives are outstandingly adapted for use as the adhesives for preformed membranes of the type which comprise an asphaltic coated fibrous reinforcement material having an asphalt based pressure sensitive adhesive on one side thereof.

Abstract: A sheet-like sealing web for use in construction above and under ground comprises a resilient elastic pressure-sensitive adhesive and sealing composition enclosed between two flexible layers, said lower layer not covering the sealing composition in the vicinity of one longitudinal edge of the web and said upper layer not covering the sealing composition in the vicinity of the opposite longitudinal edge of the web, thus forming two exposed sealing strips for bonding the webs to each other in an overlapping position. The novel sealing web can be further modified so that the adhesive and coating composition is not covered by said upper and said lower flexible layer in a narrow area along the longitudinal edges of the web opposite to the sealing strips, thus forming two exposed fixation strips for securing the web to a substrate or for bonding a cover material to the sealing web.

Abstract: This invention relates to a novel bitumen mixture and a high performance prefabricated waterproofing membrane useful for roofing which is obtained by impregnating different layers of reinforcing material with the bitumen mixture. More particularly, the invention relates to a novel bitumen mixture and a waterproofing membrane comprising a series of reinforcing layers including a polyester mat, a mat of fiberglass and a fiberglass net. Each reinforcing layer is impregnated with bitumen mixed with a thermoplastic polymer wherein the polymer is selected from the group consisting of an amorphous copolymer of ethylene/propylene, atactic polypropylene, polyisobutylene and styrene-butadiene-styrene block copolymer. The mixture has a ring and ball softening point of at least 105.degree. C. and preferably about 155.degree. C.

Abstract: A system for producing a relatively thin bitumen laminate comprised of an bitumen mastic core to which is adhered a fabric web on each side thereof, adherence being established simply by contacting the fabric web with the bitumen mastic while it is hot. The method includes continuous deposit at a fixed location of hot bitumen mastic to form the core on a moving lower fabric web, the laminated lower fabric web being in direct contact with a fluid cooled endless belt to prevent degradation of the fabric. The bitumen mastic is deposited on the lower web as it traverses the endless belt's upstream end roll, thereby insuring a firm, non-flexible surface upon which the mastic core can be sized by a doctor roll on the lower web. A moving top fabric web is laminated to the sized bitumen mastic core on the lower web at a location that is variable relative to the fixed location at which the mastic is deposited on the lower web.

Abstract: There is provided a process for improving mineral asphaltic coatings for streets and roadways comprising preparing a mixture to be used as the base mineral asphalt coating material, homogeneously mixing in 0.1 to 10 weight % of silica which is either (1) a precipitated silica, (2) a precipitated and spray dried silica or (3) a pyrogenically produced silica and further working this mixture into a mineral asphalt coating for streets and roadways.

Abstract: This invention relates to a roofing shingle having improved low temperature flexibility comprising a flexibilized mat prepared by impregnating a glass fiber web with the blend of an unblown asphalt and a monoalkenyl arene-conjugated diene block copolymer, wherein the flexibilized mat is coated with a blend of an air-blown bitumen and a filler.

Abstract: In a continuous weathering sheet manufacturing process wherein fibrous mat material is coated with liquid asphalt, the asphalt is foamed before coating the mat therewith.

Abstract: Improved flexible waterproofing membranes of the pre-formed pressure-sensitive or self-adhesive bituminous type particularly useful in roofing are described. The membranes are in the form of factory-manufactured, flexible, sheet-like laminates employing a comparatively thin layer of metal film or foil positioned (a) beneath a support layer of synthetic polymer film and (b) above a layer of waterproofing self-adhesive bituminous composition such as rubberized asphalt. The metal film imparts a number of desired properties to the laminate such as fire-resistance, handling, etc. The upper polymeric support film protects the metal film and provides, inter alia, strength, puncture-resistance, and additional waterproofing properties. In one preferred embodiment, the upper polymeric film layer is a film having good weatherability characteristics.

Abstract: A needle punched synthetic fabric of polyester fibers is impregnated with asphalt emulsion which is absorbed in an amount to approximately double the weight of the needled fabric. There is no fiber-free agglomoration of asphalt and the impregnated fabric is flexible and relatively immune to concentrated impact loads even at freezing temperature. It can be made waterproof for a single membrane built up roof by application of asphalt emulsion or hot-mopped asphalt and in such applications has properties acceptable under existing fire simulation tests. Other synthetic fibers such as nylon or polyester-nylon mixes can be used.

Abstract: A composition for coating surfaces (especially bituminous surfaces) in order to render them reflective to visible and u/v light comprises in an alcoholic base a white mineral pigment, a laminar solid and a copolymer of vinyl acetate with either vinyl veo va or vinyl laureate. The composition preferably comprises a minor proportion of anatase titanium dioxide and an alcohol-soluble algicide.

Abstract: A rubber-modified asphalt composition prepared by blending a terpene resin with the reaction product of (1) a polymerizable aromatic monomer, a rubbery polymer and a bituminous material such as asphalt. The modified asphalt composition of the invention can thus be used in the treatment of glass fibers as well as in road-paving applications, roofing applications and the like.

Abstract: A tar inhibitor coated layer formed on a wall of a combustion device inhibiting the formation of tar caused by combustion of oil, which coated layer comprises a porous binder, a reducing agent selected from the group consisting of a metal and a metallic salt, and optionally an alkaline metallic salt incorporated in said porous binder.

Abstract: A process for producing bituminous surfacing, bituminous surfacing produced y the process and hot plant mix for carrying out the process. To improve the resistance to fracture, the proposed bituminous surfacing contains metal fibers, for example steel fibers of finite length. These fibers can be admixed to the mix of solids mix and bituminous binder in the course of the preparation of the hot plant mix or in the course of laying the hot plant mix. Due to the compaction of the hot plant mix to form the bituminous surfacing, the metal fibres are bent and thus loop around the particles of the solids mix and/or form a network with one another to give a kind of random nonwoven fabric.

Abstract: The present invention is an asphaltic composition which is useful as a roofing asphalt formulation and method of making this formulation. The composition includes about 39 to 99 percent by weight of oxidized asphalt and between 1 and about 8 percent of oxidized polyethylene. It is preferred to use between about 0 to 40 percent of the saturant, which can be an unoxidized asphalt, to modify the viscosity of the formulation. There can be a filled asphaltic composition comprising about 40 percent by weight to about 99 percent by weight of the asphaltic composition and about 1 percent by weight to about 60 percent by weight of filler, which can be stone dust.

Abstract: An improved process for forming an acoustical or thermal insulating fibrous glass product is provided, wherein the binder employed is asphalt and the asphalt is converted into a substantially insolubilized form.

Abstract: A built-up bituminous waterproofing and thermal insulation assembly made by the process of placing onto a substrate a plurality of prefabricated, thermal insulating bituminous waterproofing boards adjacent to one another with the edges of the boards being slightly spaced to provide clearances therebetween, sealing the clearances with sealing material and then forming a continuous waterproofing layer over the entire upper surface of the boards and sealing material.

Abstract: Fire- and heat-resistant sheet material comprises fibrous webs adhered together with asphalt which is filled with inorganic particles, intumescable granules, and a catalyst which catalyzes charring of the asphalt.

Abstract: This invention relates to a novel bitumen mixture and a high performance prefabricated waterproofing membrane useful for roofing which is obtained by impregnating different layers of reinforcing material with the bitumen mixture. More particularly, the invention relates to a novel bitumen mixture and a waterproofing membrane comprising a series of reinforcing layers including a polyester mat, a mat of fiberglass and a fiberglass net. Each reinforcing layer is impregnated with bitumen mixed with a thermoplastic polymer wherein the polymer is selected from the group consisting of an amorphous copolymer of ethylene/propylene, atactic polypropylene, polyisobutylene and styrene-butadiene-styrene block copolymer. The mixture has a ring and ball softening point of at least 105.degree. C. and preferably about 155.degree. C.

Abstract: Polyamide resins are used as primer for highway repairs using asphaltic membranes.

Abstract: The disclosure embraces a membrane paving construction comprising an asphalt-impregnated body, pelt or mat of fibers, preferably glass fibers, and a method of making same wherein the membrane construction is prefabricated or partially fabricated for use in asphalt paving construction such as paving for highways, bridge decks, driveways, runways, parking lots and the like, as a paving wear surface or for repairing a wear surface or as a membrane construction upon which is superposed a wear surface of asphalt aggregate or the like, the membrane construction being in the form of a rolled-up body or in the form of a thin high density planar board or sheet which may be conveyed in such forms to an installation site and disposed on a substrate in a minimum of time in initial installation of paving or in the repair of asphalt paving.

Abstract: Glass fibers, either in the form of individual filaments or bundles of glass fibers, which have been coated with a chemically-modified asphalt prepared by reacting a bituminous material with an organo metallic compound in the form of an orthoester or an organo metallic boron compound. The coated fibers can be used as reinforcement for bitumen or bitumen plus aggregate to securely tie the glass fiber surfaces to the bitumen.

Abstract: A reinforced composite formed of a bitumen, an elastomer or a plastic reinforced with a filler containing a coating thereon in the form of a chemically modified bitumen. The chemically modified bitumen employed is one formed by reaction of a linking agent reactive with the bitumen and containing groups reactive with the filler so that the chemically modified bitumen undergoes a chemical reaction with the filler to thereby intertie the coated filler with the continuous phase.

Abstract: A composition for sound absorbent panels, which may be utilized in construction elements, comprises a mixture of 70 to 97 weight percent of carbon-contained material and a binder of synthetic plastic material. The carbon-contained material used in the composition contains 50-60% of pure carbon and 40-50% of inorganic constituents and may be obtained from residues of coal hydrogenation or pitch filtration. The material is treated at an elevated temperature and under pressure before the binder is added thereto and then the obtained compound is formed into a panel.

Abstract: Double faced rigid polyurethane foam insulating board in which the first facing is adhered directly to the urethane foam and in which a second facing is intermittently adhered to and spaced from the first facing by areas of adhesive spaced so as to allow unrestricted lateral venting of gases from between the facings to the edges of the board.

Abstract: A bitumen composition modified with an organo silane in which a bitumen such as asphalt is reacted with an organo silane containing ethylenic unsaturation or an organo silane containing at least one hydrogen atom bonded to the silicon atom whereby the organo silanes react with ethylenic unsaturation of the bitumen to chemically bond the organo silane to the bitumen. Also included are bitumens which have been chemically modified by reaction with steam, air, ammonia or aliphatic amines which have been reacted with a silane containing a functional group reactive with the bitumen. Bitumen compositions of the invention are preferably used in the treatment of glass fibers for use as reinforcement in asphalt systems.

Abstract: A fibrous reinforcing means for cementitiously and bituminously bound composite structures and coatings comprises at least two various groups of fibrous articles. At least one of the groups consists of fibrous articles in the form of a closed filamentary net. The fibres thereof are resilient. They are added to the material to be mixed in a condensed shape such to expand during the mixing step of the preparation of the composite structure.

Abstract: A rubber-modified asphalt composition prepared by reacting asphalt with a rubbery polymer, a polymerizable vinyl aromatic monomer and a polymerizable vinyl aromatic monomer in which the vinyl group is substituted whereby the chemical integration of the rubbery polymer with the asphalt is accelerated by the use of a combination of the polymerizable vinyl aromatic monomer and the substituted vinyl aromatic monomer.

Abstract: A rubber-modified asphalt composition prepared by reacting a bituminous material with a polymerizable aromatic monomer and a rubbery polymer whereby the rubbery polymer is chemically integrated with the asphalt. The rubber-modified asphalt compositions of the invention can be used in the treatment of glass fibers as well as in road-paving applications, roofing applications and the like.

Abstract: A sheeting of multilayer antidrumming lining material, viz. a film containing bitumen or plastic, or a combination film containing bitumen and plastic, which is backed with a wide-meshed fabric having a high tensile strength. This high-tensile fabric backing prevents the antidrumming film, on the one hand, from cracking and, on the other, it holds it even when in a plasticized condition on the upper edge of a steeply inclined or vertical sheet metal component, so that the piece of antidrumming film hanging thereon cannot slide off. Also, due to the backing fabric, the film does not flap away outwardly and upwardly in the area where a steep descent starts. Finally, the tensile strength of the plasticized film is increased such that it cannot crack under the influence of gravity in the area of vertical sides.

Abstract: A multilayer sheeting for attachment to sheet metal to stiffen the sheet metal and diminish noise. An anti-drumming sheeting consisting of a filler embedded in a mass such as a bituminous material may be bonded to sheet metal, such as the sheet metal employed in manufacture of an automobile door, and a stiffening sheeting which may consist of a matrix such as a fiberglass mat drenched in a thermosetting resin is bonded to the anti-drumming sheeting. Such a multilayer anti-drumming and stiffening sheeting is flexible enough during application to conform to the configuration of the sheet metal, but hardens into a rigid lining component when the sheet metal is heat treated during the normal course of fabrication.

Abstract: A bitumen composition modified with an organo silane in which a bitumen such as asphalt is reacted with an organo silane containing ethylenic unsaturation or an organo silane containing at least one hydrogen atom bonded to the silicon atom whereby the organo silanes react with ethylenic unsaturation of the bitumen to chemically bond the organo silane to the bitumen. Also included are bitumens which have been chemically modified by reaction with steam, air, ammonia or aliphatic amines which have been reacted with a silane containing a functional group reactive with the bitumen. Bitumen compositions of the invention are preferably used in the treatment of glass fibers for use as reinforcement in asphalt systems.

Abstract: Carbonaceous contact paste for producing a high strength, electrically conductive connection between elements which experience high temperatures. The cold workable paste comprises a mixture of epoxy resin and tar as binder and graphite and metal in powder form as solid constituents. Before being used, an acid-free hardener e.g. polyamine is added to the paste.The electrical and thermal conductivity of the contact paste correspond to that of carbon blocks, and the paste is particularly suitable for joining such blocks to metallic conductors e.g. as in anodes and cathodes for cells used for the fused salt electrolytic production of aluminum.

Abstract: This invention pertains to asphaltic sheet sound deadener for use as a vibration damping medium, which can be bonded in place without excessive sag or flow by subjecting the material to 250.degree.-400.degree. F. The main use of this material is in the automotive field, but may be used in other areas such as the appliance and furniture industries. The melt flow properties of the deadener are controlled by the use of ground mica.

Abstract: A filler reinforced composite comprising bitumen as a continuous phase and as reinforcement in the bitumen, fillers which have been coated with a chemically-modified bitumen composition prepared by reacting a bituminous material with an organo metallic compound.

Abstract: An improved multi-layer surface marking tape material for use on roadway pavements so as to provide a traffic regulating indicium thereon, and having an anti-skid and wear-resisting upper layer and a lower primer layer for connecting the material to said pavement, the new multi-layer tape material comprising further an intermediate relatively thin, pliable, essentially inextensible and tensionally resistant intermediate layer compatible with and intimately connected to both said layers for distributing and transferring over a large primer layer-roadway pavement interfacial area horizontally directed stresses tangentially applied to said anti-skid upper layer at localized upper layer-vehicle wheel treads interfacial areas. .Iadd.