Title:
SUPERMOLECULAR INTERCALATION-STRUCTURED UV ABSORBER AS WELL AS ITS PREPARATION METHOD AND USE
Document Type and Number:
WIPO Patent Application WO/2007/071132
Kind Code:
A1
Abstract:
A supermolecular intercalation-structured UV absorber as well as its preparation method and use. The present invention is characterized by the UV absorber utilizing the property of the layered double hydroxides (LDHs), which may be intercalation-structured, intercalaring the 5-benzotriazolyl-4-hydroxy-3-sec-butylbenzenesulfonic acid (BZO) into the interlayer of the LDHs, and then obtaining a supermolecular intercalation-structured material in which BZO anion serves as interlayer guest molecule. The supermolecular intercalation-structured UV absorber has a formula as follow: [M2+
1-xM3+
x(OH)2](C16H16N3O4S)-
x·mH2O, which has a absorbent ratio more than 90% to 280-370 nm UV light, remarkably increased thermal stability relative to that of the interlayer guest BZO, the obviously decomposing temperature of the interlayer matter of 450 . The UV absorber can be used for the anti-photoaging additive of the resins which are susceptible to light-oxygen degradation, such as polypropylene, polycarbonate, acrylonitrile-butadiene-styrene copolymer (ABS) and polyurethane.
Inventors:
DUAN XUE (CN)
LI DIANQING (CN)
TUO ZHENJUN (CN)
LI DIANQING (CN)
TUO ZHENJUN (CN)
Application Number:
PCT/CN2006/001243
Publication Date:
June 28, 2007
Filing Date:
June 08, 2006
Export Citation:
Assignee:
UNIV BEIJING CHEMICAL (CN)
DUAN XUE (CN)
LI DIANQING (CN)
TUO ZHENJUN (CN)
DUAN XUE (CN)
LI DIANQING (CN)
TUO ZHENJUN (CN)
International Classes:
C08K9/04; B01J41/04
Foreign References:
| US4299759A | 1981-11-10 | |||
| US4347353A | 1982-08-31 | |||
| CN1289307A | 2001-03-28 | |||
| JPH0228236A | 1990-01-30 | |||
| JPH04209642A | 1992-07-31 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (Corporate Square No.35 Jinrong Street, Beijing 2, CN)
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