发明授权
- 专利标题: High molecular weight dibenzoylresorcinol UV absorbers
- 专利标题(中): 高分子量二苯甲酰间苯二酚紫外吸收剂
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申请号: US762644申请日: 1996-12-09
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公开(公告)号: US5763674A公开(公告)日: 1998-06-09
- 发明人: James Edward Pickett , Amy Kathleen Simonian
- 申请人: James Edward Pickett , Amy Kathleen Simonian
- 申请人地址: NY Schenectady
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: NY Schenectady
- 主分类号: C07B61/00
- IPC分类号: C07B61/00 ; C07C45/68 ; C07C45/72 ; C07C49/83 ; C07C49/84 ; C07C69/007 ; C07C69/18 ; C07D249/20 ; C07D251/24 ; C08K5/132 ; C08K5/3475 ; C08K5/3492 ; C08L69/00 ; C09D7/12 ; C09D169/00 ; C09K3/00 ; C07C49/786
摘要:
Novel dibenzoylresorcinol compositions capable of absorbing ultraviolet light having the formula ##STR1## where Ar.sub.1 and Ar.sub.2 are independently substituted or unsubstituted monocyclic or polycyclic aryl groups, R is hydrogen, an aryl group, or a linear or branched alkyl chain having less than about 10 carbons, and Ar.sub.3 is an aryl group bearing at least one hydroxyl group. Methods of making the compositions are provided. The novel dibenzoylresorcinol compositions are methylene-bridged dibenzoylresorcinol derivatives having a phenol group on the bridging methylene and are compatible in coating compositions to improve the weatherability of thermoplastic substrates.
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