US Patent No: 6,172,232
Number of patents in Portfolio can not be more than 2000
Light stabilizers based on sterically hindered amines
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Jan 9, 2001
Issued date -
Sep 3, 1998
filing date -
09/146,610
serial no -
Expired
status
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Abstract
The present invention relates to novel compounds of the formula (I) ##STR1## in which the substituents have the meaning defined in the description. These novel compounds are excellent stabilizers for organic material against the damaging effects of light, heat and oxygen.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,289,686 Tetra-alkyl piperidine derivatives as light stabilizers | 19 | 1979 | |
| 4,314,933 Method for light stabilization of two-layer uni-lacquer coatings | 50 | 1980 | |
| 4,481,315 Polyalkylpiperidine light stabilizers | 18 | 1983 | |
| 5,753,729 Coating compositions stabilized against damage by light, heat, and oxygen | 3 | 1996 | |
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| 5,705,545 Use of HALS compounds | 13 | 1995 | |
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| 4,416,809 Granular detergent composition | 19 | 1982 | |
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| 4,327,297 System for generating energy from tidal activity | 4 | 1981 | |