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EP0110221A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Polycarbonate plastic panel

Assignee: Roehm GmbH Darmstadt
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Filing: 1983-11-12
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Granted: —
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Expires: 2003-11-12
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Abstract

Abstract Translated from German Eine verbesserte Kunststofftafel, bestehend aus einer gegebenenfalls durchgehende Hohlräume aufweisenden Kernschicht aus Polycarbonatkunststoff die nicht mehr als 0,5 Gew.-% eines UV-Absorbers enthält und auf wenigstens einer Seite der Kernschicht eine UV-absorbierende Deckschicht trägt, wird durch Koextrusion der Kernschicht mit einer Deckschicht aus Polycarbonatkunststoff, der wenigstens 3 Gew.-% eines UV-Absorbers enthält, erzeugt. An improved plastic sheet, consisting of a core layer of polycarbonate plastic which may have continuous cavities and which contains no more than 0.5% by weight of a UV absorber and carries a UV-absorbing cover layer on at least one side of the core layer, is co-extruded with the core layer a cover layer made of polycarbonate plastic, which contains at least 3 wt .-% of a UV absorber.

Inventors

  • 👤 Heinz Dr. Vetter

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-25 03:38
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/14; A01G9/1438; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/18; B32B27/36; B32B27/365; B32B3/00; B32B3/26; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/005; E; E04; E04C; E04C2/00; E04C2/54; E04C2/543; E06; E06B; E06B3/00; E06B3/66; E06B3/6608; B32B2307/00; B32B2307/40; B32B2309/00; B32B2309/08; B32B2309/10; B32B2309/105; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25

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