Two-layer coating and process for its production
March 12, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3892692 Plastisols comprising copolymers of methyl methacrylate Trim for automobiles Method of producing an improved vibration damping and sound absorbing coating on a rigid substrate Interlayers for use in sound-insulating laminated glasses Two-layer coating and process for its production Soundproofing panels for automobile applications and manufacturing processes therefor Patent #: 5266143 InventorsAssigneeApplicationNo. 030513 filed on 03/12/1993US Classes:427/407.1, Synthetic resin coating252/62, HEAT OR SOUND INSULATING427/244, Filter, sponge, or foam427/247, Metal base427/373, Cells, foam, or bubbles formed427/409Metal baseExaminersPrimary: Beck, ShriveAssistant: Dudash, Diana Attorney, Agent or FirmForeign Patent References
International ClassesE04B 001/74B05D 001/36 Foreign Application Priority Data1990-04-26 DEAbstractA method of coating to produce a two-layer, vibration-absorbing and anti-corrosive, abrasion-resistant coating for rigid substrates, in particular for sheet metals in the underbody region of motor vehicles, for reducing the noise caused by impacting particles, comprises an inner layer, facing the substrate, of a polymer A and a plasticizer P1, and a covering layer of a polymer B and a plasticizer P2, such that either the polymers A and B have a different chemical composition and the polymer A is essentially incompatible with the plasticizer P2 and the polymer B is essentially incompatible with the plasticizer P1, or both layers contain essentially the same concentration of one plasticizer (P1 =P2), so that there is no risk of one layer being impaired by the plasticizer from the other layer.Field of SearchSynthetic resin coatingMetal base Metal base Filter, sponge, or foam Cells, foam, or bubbles formed Coagulating or jelling the coating Next to polyester, polyamide or polyimide (e.g., alkyd, glue, or nylon, etc.) Of polyester (e.g., alkyd, etc.) Mechanical vibration attenuator Damping of flexural structure Multilayer panel or wall structure With membrane outer layer Materials Critically defined material or coating Internally coated parts HEAT OR SOUND INSULATING | |
