The present invention refers to a polyamide moulding composition having an excellent adhesion to metal surfaces. Moreover, the present invention refers to structural parts with a metal component directly bonded to a thermoplastic component (interconnected without using a bonding agent/layer). The present invention also relates to a method for manufacturing of such structural parts by an injection moulding or extrusion processes.

The present invention refers to a polyamide moulding composition having an excellent adhesion to metal surfaces. Moreover, the present invention refers to structural parts with a metal component directly bonded to a thermoplastic component (interconnected without using a bonding agent/layer). The present invention also relates to a method for manufacturing of such structural parts by an injection moulding or extrusion processes.

The disclosure discloses a high-viscosity, high-elasticity, and anti-aging composite modified asphalt and a preparation method thereof, belongs to the technical field of road engineering materials, and solves the technical problem that the comprehensive performance of an existing asphalt ultrathin wearing layer needs to be further improved so as to prolong the service life of a pavement surface layer and reduce the pavement maintenance costs. The composite modified asphalt is prepared from the following components in parts by mass: 100 parts of a matrix asphalt, 10 to 15 parts of a thermoplastic styrene-butadiene rubber, 5 to 8 parts of a tackifier, 0.5 to 1.5 parts of a plasticizer, 2 to 5 parts of a compatibilizer, 0.1 to 0.4 parts of a stabilizer, and 0.01 to 0.05 parts of an anti-aging agent. The composite modified asphalt prepared by the disclosure has the advantages of high elasticity, high viscosity, excellent aging resistance, etc.

The disclosure discloses a high-viscosity, high-elasticity, and anti-aging composite modified asphalt and a preparation method thereof, belongs to the technical field of road engineering materials, and solves the technical problem that the comprehensive performance of an existing asphalt ultrathin wearing layer needs to be further improved so as to prolong the service life of a pavement surface layer and reduce the pavement maintenance costs. The composite modified asphalt is prepared from the following components in parts by mass: 100 parts of a matrix asphalt, 10 to 15 parts of a thermoplastic styrene-butadiene rubber, 5 to 8 parts of a tackifier, 0.5 to 1.5 parts of a plasticizer, 2 to 5 parts of a compatibilizer, 0.1 to 0.4 parts of a stabilizer, and 0.01 to 0.05 parts of an anti-aging agent. The composite modified asphalt prepared by the disclosure has the advantages of high elasticity, high viscosity, excellent aging resistance, etc.

The present invention provides a polyamide composition containing a polyamide (A), and also containing, per 100 parts by mass of the polyamide (A), at least 0.1 parts by mass but not more than 3 parts by mass of a branched polyamine (B), at least 0.05 parts by mass but not more than 3 parts by mass of a sterically hindered phenol (C), and at least 0.01 parts by mass but not more than 0.5 parts by mass of an azine-based dye or phthalocyanine-based dye (D), wherein the concentration of halide ions (F) measured by combustion ion chromatography relative to the total mass of the polyamide composition is not more than 500 ppm by mass.

The present invention provides a polyamide composition containing a polyamide (A), and also containing, per 100 parts by mass of the polyamide (A), at least 0.1 parts by mass but not more than 3 parts by mass of a branched polyamine (B), at least 0.05 parts by mass but not more than 3 parts by mass of a sterically hindered phenol (C), and at least 0.01 parts by mass but not more than 0.5 parts by mass of an azine-based dye or phthalocyanine-based dye (D), wherein the concentration of halide ions (F) measured by combustion ion chromatography relative to the total mass of the polyamide composition is not more than 500 ppm by mass.

A non-tin catalyst for accerating the curing of alkoxysilyl-containing polymer contains a mixture and/or complex of organotitanium compound and a compound containing at least one (-).sub.2NCN linkage.

A non-tin catalyst for accerating the curing of alkoxysilyl-containing polymer contains a mixture and/or complex of organotitanium compound and a compound containing at least one (-).sub.2NCN linkage.

The present invention describes compounds and uses thereof in applications relating to absorption of electromagnetic energy. Preferred compounds are double bond-containing compounds capable of absorbing electromagnetic radiation energy and having improved properties.

The present invention describes compounds and uses thereof in applications relating to absorption of electromagnetic energy. Preferred compounds are double bond-containing compounds capable of absorbing electromagnetic radiation energy and having improved properties.