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 this invention can be used in the treatment of glass fibers as well as in road paving applications, roofing applications and the like.

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 atoms 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: The use of flake glass in road pavement and repair is disclosed. In particular, we disclose improvements in the formulations of asphalt aggregate wear surfaces, substrate layers and interface layers between the substrate and wear surfaces. In one embodiment we also employ an unsaturated monomer or an unsaturated elastomer.

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 a chromium complex. 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: The use of flake glass in road pavement and repair is disclosed. In particular, we disclose improvements in the formulations of asphalt aggregate wear surfaces, substrate layers and interface layers between the substrate and wear surfaces. In one embodiment we also employ an unsaturated monomer or an unsaturated elastomer.

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 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: The use of flake glass in road pavement and repair is disclosed. In particular, we disclose improvements in the formulations of asphalt aggregate wear surfaces, substrate layers and interface layers between the substrate and wear surfaces. In one embodiment we also employ an unsaturated monomer or an unsaturated elastomer.

Abstract: Chemically modified asphalt compositions prepared by reaction of asphalt with ammonia, a polyamine or an aromatic diamine. The chemically modified asphalt compositions of this invention are particularly well suited for use in the treatment of glass fibers as reinforcement for asphalt matrices.

Abstract: A thermoplastic composition produced by the polymerization of a monomer with unsaturated elastomeric polymers is disclosed. The composition is effective in improving the shrink and gloss of molded thermosetting resin compounds by blending therein.

Abstract: A thermosetting additive comprising, in its preferred form, the 2-hydroxyethyl acrylate adduct of poly(styrene-co-maleic anhydride), is blended with polyester-based thermosetting resins to produce molding compounds having improved surface characteristics.

Abstract: Thermoplastic additives comprising the esterification product of a polyol with dimer and trimer acids are blended with thermosetting resins to reduce the shrinkage of the latter on molding.

Abstract: Thermoplastic additives comprising the esterification product of a mixture of glycols and oligomers with dimer and trimer acids are blended with thermosetting resins to reduce the shrinkage of the latter on molding.

Abstract: Low pressure molding compounds comprising a thermosetting resin and a thermoplastic resin are gelled with calcium hydroxide within a specific concentration range to produce compounds moldable at low pressures.

Abstract: A coating composition for glass fibers comprising a film former of emulsified clad particles having a core of poly alkyl methacrylates and that include at least 5% of methyl methacrylate and a cladding of a softer thermoplastic polymeric material having a Tg of 10.degree. C or less. A method of producing such emulsified coated particles is also disclosed, as well as glass fibers coated with such mixtures.

Abstract: The surface characteristics, including shrink and gloss of molded thermosetting resin compounds, are improved by incorporating into the thermosetting resin a thermoplastic composition produced by the polymerization of a monomer with unsaturated elastomeric polymers.

Abstract: Low pressure molding compounds comprising a thermosetting resin and a thermoplastic resin are gelled with calcium hydroxide within a specific concentration range to produce compounds moldable at low pressures.

Abstract: The disclosure teaches the gelling and thickening of matrix forming resin systems by ion-dipole bonds. Suitable ions are introduced into the resin matrix as alkaline oxides or hydroxides. Thermoplastic polymers containing polar groups are used as additives for the thermosetting resins to offset shrink of the thermosetting resins during their crosslinking and curing in the molding operation. In the molded thermoset state of the resin materials, the polar groups provide sites for the improved bonding of paints, as for example, gel coats. The invention has particular advantages in polyester thermosetting resin systems and in the thermoplastic additives that are used therewith. Polar monomers copolymerized with styrene are the preferred thermoplastic additives.