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| Issue 1294-3 |
| US 6,893,689 B2 |
| Heat-absorbent multi-layer structure |
| Martin Döbler, Düsseldorf (Germany); Peter Bier, Krefeld (Germany); Rüdiger Gorny, Krefeld (Germany); and Monika Stihler, Moers (Germany) |
| Assigned to Bayer Aktiengesellschaft, Leverkusen (Germany) |
| Filed on Apr. 04, 2002, as Appl. No. 10/116,556. |
| Claims priority of application No. 101 17 785 (DE), filed on Apr. 10, 2001. |
| Prior Publication US 2003/0039821 A1, Feb. 27, 2003 |
| Int. Cl.7B60R 13/00 |
| U.S. Cl. 428—31 [428/220; 428/332; 428/334; 428/335; 428/336; 428/412; 428/447; 428/923; 428/926] | 20 Claims |
| 1. A transparent heat-absorbent multi-layer structure, comprising:
(A) a first layer;
(B) a second layer; and
(C) a third layer, wherein
said first layer (A) contains at least one organic infrared absorber and at least one ultraviolet absorber,
said second layer (B) contains at least one ultraviolet absorber and is substantially free of organic infrared absorbers,
said first layer (A) is the only layer in the multi-layer structure that contains an organic infrared absorber,
said third layer (C) is transparent, and is free of organic infrared absorber and ultraviolet absorber, and
said first layer (A) abuts said second layer (B), and said second layer (B) is interposed between said third layer (C) and
said first layer (A).
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