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Title: Polymerizable 2(2-hydroxynaphthyl) 2H-benzotriazole compounds

Patent Application ·
OSTI ID:6106460

It is an object of the invention to provide benzotriazole compounds as a basis for novel polymeric ultraviolet absorbers having higher wavelength cutoffs of up to about 430nm. Particular ultraviolet absorbers are 2(2-Hydroxynaphthyl) 2H-Benzotriazole compounds having polymerizable unsaturated groups attached to the naphthyl double ring. A further object of the invention is to provide 2(2-Hydroxynaphthyl) 2H-Benzotriazole compounds having polymerizable unsaturated groups on the napthyl ring which can be homopolymerized or copolymerized with a comonomer to obtain polymeric ultraviolet absorbers having high wavelength cutoffs of up to about 430nm. 4 figs.

Research Organization:
National Renewable Energy Lab., Golden, CO (United States)
Sponsoring Organization:
USDOE; USDOE, Washington, DC (United States)
DOE Contract Number:
AC02-83CH10093
Assignee:
Dept. of Energy
Patent Number(s):
PATENTS-US-A7525572
Application Number:
ON: DE92004618; PPN: US 7-525572
OSTI ID:
6106460
Resource Relation:
Patent File Date: 21 May 1990
Country of Publication:
United States
Language:
English