Patent · US Expired

Material for solar benches

US6716950B2 · kind B2 · utility

1Cited by

7References

20Claims

0Family size

Assignee

ROEHM GMBH & CO. KG · DE

Inventors

Sabine Servaty · Großlittgen, DE
Rolf Neeb · Pfungstadt, DE
Guenther Ittmann · Groß-Umstadt, DE

Key dates

Filing date	Apr 20, 2001
Grant date	Apr 6, 2004
Priority date	—
Expiry date	Jun 10, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/101
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention describes a polymer with high transmission for UV rays, this transmission being preserved even after prolonged exposure to UV light (tanning lamps). The polymer is further characterized by a low residual monomer content (determined as methyl methacrylate).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.