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Title:
【発明の名称】ポリウレタン類とポリウレア類のためのアミド官能性紫外線吸収体
Document Type and Number:
Japanese Patent JP2003521550
Kind Code:
A
Abstract:
An ultraviolet light absorbing material that resists blooming and migration is made up of a polyurethane or polyurea polymer and an amide functional ultraviolet light absorbing compound, wherein the polymer and the amide functional ultraviolet light absorbing compound are hydrogen bonded to one another. Polymeric films that contain a polymeric matrix and the ultraviolet light absorbing material are useful as the top layer in multilayer constructions such as retroreflective sheetings and conformable marking sheets.

Inventors:
Rush, James E.
Olson, David B.
Burns, David M.
Application Number:
JP2000519020A
Publication Date:
July 15, 2003
Filing Date:
February 27, 1998
Export Citation:
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Assignee:
Minnesota Mining and Manufacturing Company
International Classes:
C08K5/132; C08K5/20; C08K5/3475; C08L75/02; C08L75/04; C08J5/18; (IPC1-7): C08L75/04; C08J5/18; C08K5/132; C08K5/20; C08K5/3475; C08L75/02
Attorney, Agent or Firm:
Takashi Ishida (4 others)