Two-layer coating and process for its production

Details Two-layer coating and process for its production Two-layer coating and process for its production

B - Operations, Transporting

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117/126, 117/142

B05D 7/14 (2006.01) B05D 1/36 (2006.01) B05D 5/00 (2006.01) B05D 7/16 (2006.01) B32B 27/08 (2006.01) B32B 33/00 (2006.01)

Patent

CA 2040622

Abstract 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 sub- strate, 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.

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