A coating agent, a cured product of which after curing having a tear strength, at each of 25? C. and 80? C., of 20 KN/m or more, and having a type A durometer hardness at 25? C. of from 30 to 100, and a spring using the same.

This flocking powder coated article comprises a base material (10) and a flocking coating layer (11). The flocking coating layer (11) includes: a coating film (110) constituted by a powder coating, and a portion of a flocking organic filler (13) buried in the powder coating; and a flocking layer (111) constituted by another portion of the flocking organic filler (13) projecting from the coating film (110). This flocking powder coated article does not have an adhesive layer for fixing the flocking organic filler (13).

This flocking powder coating method comprises: a powder coating attachment step for attaching a powder coating to a base material; a flocking step for attaching, by electrostatic force, a flocking organic filler to the attached powder coating layer; and a fixing step for forming a coating film by curing or hardening a resin included in the powder coating and thereby fixing a portion of the flocking organic filler to the coating film. According to this flocking powder coating method, coating and flocking can be performed without the use of an adhesive.

The flocked helical spring includes a spring body, a cationic electrodeposition coating layer disposed on the surface of the spring body, an adhesive layer disposed on the surface of the cationic electrodeposition coating layer, and a flocking layer composed of flocking fillers fixed to the adhesive layer. The surface roughness Rz of the cationic electrodeposition coating layer is 19.6 ?m or greater. The method for producing a flocked helical spring includes a cationic electrodeposition coating process of performing a cationic electrodeposition coating treatment on a spring body to form a film of an electrodeposition coating material on the surface of the spring body; an adhesive coating process of coating an adhesive containing a surface roughening solvent on the surface of the film; a flocking process of bonding flocking fillers to the surface coated with the adhesive; and a baking process of heating the spring body adhered with the flocking fillers.

A spring part, in particular for a driving device, includes a spring body extending around a central axis. The spring body comprises several spring windings which run radially around a spring axis and are made of at least a base material. The base material is surrounded at least by a first protective layer, and the spring body is at least partially covered on the outside by a lubricant. A method for manufacturing a spring part includes the steps of providing a spring body with several spring windings made of a base material and coating the base material at least with a first protective layer. The method includes the step of applying a lubricant formed as a silicone-based lubricant to the outside of the coated spring body.

[Purpose] To provide a sinuous spring mounting structure in a seat back, which can realize a lightweight and simplified structure of a seat back frame of the seat back.

A sinuous spring or S-spring 10 used in the present invention has left and right end portions 10a and 10b which include two curved regions 10aU and 10bU, respectively. A seat back frame 7 includes left and right cylindrical side frame portions 9L and 9R. One spring mounting portion 11 for allowing the left end portion 10a of the S-spring 10 to be mounted thereto is formed in an outwardly-facing lateral surface area of the left cylindrical side frame portion 9L, whereas the other spring mounting portion 11 for allowing the right end portion 10b of the S-spring 10 to be mounted thereto is formed in an outwardly-facing lateral surface area of the right cylindrical side frame portion 9R. Those two spring mounting portions 11 may be embodied by first and second hole portions 11A-1 and 11A-2, respectively, for example, in which case, two distal ends 10aE and 10bE of the S-spring 10 may be inserted and hookingly secured in the first and second hole portions 11A-1 and 11A-2, respectively, such that the two curved regions 10aU and 10bU of the S-spring 10 are closely contacted on and along two outer circumferential surfaces of the left and right cylindrical side frame portions 9L and 9R, respectively.

An elastic member is an elastic member formed of a wire having a cross section that is substantially circular, the cross section being orthogonal to a longitudinal direction, and the elastic member being expandable and contractible in a predetermined direction; and including: a first alloy portion that is made of an aluminum alloy having a tensile strength larger than 950 MPa and equal to or less than 1100 MPa at room temperature; and a second alloy portion configured to cover the first alloy portion, the second alloy portion having a thickness in a radial direction smaller than a radius of the first alloy portion, and being made of an aluminum alloy having a tensile strength of 100 MPa to 650 MPa at room temperature.

A spiral spring and a method of manufacturing the spiral spring are disclosed. The spiral spring includes at least one winding, which includes a core made of a silicon material. The core comprises two long, parallel, straight sides, and two short, parallel, straight sides. At least the opposite long sides of the core are covered by a SiO.sub.2 layer. In the method, the at least one winding is etched out of the silicon material such that the core of the at least one winding of the spiral spring is formed and includes two long, parallel, straight sides and two short, parallel, straight sides.

Disclosed is a method for improving vibration damping of a substrate, such as the underbody of an automobile. The method comprises applying a plastisol which comprises a polymeric component, a general purpose plasticizer and a rosin ester resin. The fused plastisol has improved damping behavior as determined using Dynamic Mechanical Thermal Analysis.

Provided is a vibration damping composite capable of providing a vibration damping material, at low cost, that exhibits a high vibration damping property in a wide temperature range and has excellent appearance. The present invention relates to a resin composition for vibration damping materials which contains a lignin and/or a lignin derivative. The present invention also relates to a vibration damping composite containing the resin composition for vibration damping materials and an inorganic pigment. The present invention also relates to a vibration damping material obtainable from the vibration damping composite.