Described herein are polyphenylene sulfide (“PPS”) polymers having excellent transparency to infrared (“IR”) radiation. It was surprisingly discovered that PPS polymer composition including PPS polymers having a selected metal ion (Ca, K, and Mg) concentration at least 400 parts per million by weight (“ppm”), had significantly increase IR transparency, relative to corresponding PPS polymer compositions including a PPS polymer having a selected metal ion concentration less than 400 ppm. Additionally, described herein are methods for laser welding the PPS polymer compositions.

In an adhesive selection method, test data is acquired by subjecting an adhesion complex, obtained by integrally bonding one material and an other material that are heterogeneous using an adhesive, to a shear test, in which a tensile shear load is applied to the adhesion complex in a direction that causes shear deformation in the adhesive, until adhesive failure takes place. Based on the test data, a plurality of two- or three-dimensional FEM analysis models of the adhesion complex with varied adhesives are constructed. On each of the analysis models, a simulation is performed in which a tensile shear load is applied. Based on the stresses and locations of the stresses generated in each of the analysis models in the course of the, the adhesive for binding one member made of the one material and the other member made of the other material is selected from among the adhesives.

A method of bonding a first object to a second object, including the steps of: providing a profile body having a first profile body portion; providing the first object, wherein the first object has thermoplastic material; providing the second object, wherein the profile body is separate from and attachable to the second object or wherein the second object includes the profile body; embedding the profile body in the first object such that the first profile body portion is within the thermoplastic material of the first object. Embedding the profile body in the first object is caused by mechanical energy impinging on the first object and/or on the second object while the first object and the second object are pressed against each other.

A structural member (10) comprising: (i) a first carrier (12A) and a second carrier (12B), each carrier including a plurality of interconnecting ribs (16), each carrier further including one or more projections (28) extending from exterior walls (30) of each carrier; (ii) one or more secondary members (14) secured to one or more surfaces of each carrier; and (iii) an adhesive material (32) disposed on the first carrier (12A), the second carrier (12B), or both, wherein the first carrier (12A) and the second carrier (12B) are bonded to each other via the adhesive material (32).

A primer-attached thermoplastic resin material having a thermoplastic resin material and one or plural primer layers laminated on the thermoplastic resin material, wherein at least one layer of the primer layers is a layer derived from a film.

A required weld strength is ensured even when the shape of a first resin member is formed in a desired design shape. A lamp lens and a lamp housing are provided. The lamp lens and the lamp housing are fixed to each other by welding under pressure. The lamp lens includes a body portion, a leg portion, and a welding portion. As a result, a required weld strength is ensured even when the shape of the body portion of the lamp lens is shaped in a desired design shape.

A moisture curable hot melt adhesive composition that includes isocyanate-terminated polyurethane prepolymer that includes the reaction product of a crystalline polyester polyol, a polyether polyol, and diisocyanate, clay, polyester/polyether elastomer, a first thermoplastic polymer selected from the group consisting of ethylene vinyl acetate copolymer, ethylene (alkyl)acrylate copolymer, and combinations thereof, a tackifying agent, and optionally a second thermoplastic polymer selected from the group consisting of thermoplastic polyurethane, thermoplastic polycaprolactone, and combinations thereof.

The relates to a method of mechanically securing a first object to a second object and includes the steps of: providing the first object including thermoplastic material in a solid state, providing the second object with a generally flat sheet portion having an edge, positioning the first object relative to the second object and bringing the first object and the second object to a relative movement to each other. The relative movement includes a rotational movement, such that a melting zone including flowable thermoplastic material is formed and such that thermoplastic material of the melting zone flows around the edge to at least partially embed the edge in the thermoplastic material. The invention further concerns a connector that is suitable for being used in a method according to the invention.

A cushion connecting rod of a saddled vehicle is configured in such a manner that an initial failure condition can be visually recognized in combination with fiber composite material and metal without using a special adhesive. A cushion connecting rod as a long member applied with a load when a swing arm is swung against a springing force of a rear cushion is configured in such a manner that a part of a surface of a metallic member is covered with an endless fiber-reinforced plastic. The fiber-reinforced plastic adheres to the surface of the metallic member with a film adhesive. Supporting portions applied with the load are provided at both ends in a longitudinal direction of the metallic member. A recessed portion and a plurality of lightening holes are formed between the supporting portions at both the ends, the recessed portion being configured in such a manner that a thickness dimension of the metallic member is set to be smaller than a thickness dimension of the supporting portions. The fiber-reinforced plastic covers surfaces of the supporting portions and the recessed portion.

A irradiation welding apparatus including an irradiation welding generator having at least one irradiation welding head configured to apply an irradiation treatment to end contact surfaces of a first profile and a second profile to join the first profile and the second profile, where the at least one irradiation welding head forms a planar cross-sectional shape in an x-y directional plane relative to the irradiation welding generator.