IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0624816
(1990-12-03)
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발명자
/ 주소 |
- Van Gemert Barry (Murrysville PA)
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| 출원인 / 주소 |
- PPG Industries, Inc. (Pittsburgh PA 02)
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| 인용정보 |
피인용 횟수 :
24 인용 특허 :
0 |
초록
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Described are novel reversible photochromic naphthopyran compounds substituted on the naphthyl portion at the carbon atom juxtaposed to the oxygen of the pyran ring with, for example, an acetoxy group. Also described are organic host materials that contain or that are coated with such compounds. Art
Described are novel reversible photochromic naphthopyran compounds substituted on the naphthyl portion at the carbon atom juxtaposed to the oxygen of the pyran ring with, for example, an acetoxy group. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indolino)-oxazine type compounds, are also described.
대표청구항
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A naphthopyran represented by the following graphic formula: [Figure] wherein I. L is the group, －W－T(Z)=Xg, wherein (a) W is selected from the group consisting of the bivalent radicals, [Figure] [Figure] said J and J′each being selected from the group consisting of C1-C4 alkyl, or J and J′taken tog
A naphthopyran represented by the following graphic formula: [Figure] wherein I. L is the group, －W－T(Z)=Xg, wherein (a) W is selected from the group consisting of the bivalent radicals, [Figure] [Figure] said J and J′each being selected from the group consisting of C1-C4 alkyl, or J and J′taken together is a single oxygen, (b) T is selected from the group consisting of carbon and sulfur, (c) X is selected from the group consisting of oxygen, sulfur and －N－J″, said J″being selected from the group hydrogen, hydroxy, C1-C4 alkyl, C1-C4 alkoxy or C1-C4 alkenyl, or J″may combine with Z to form a pyridyl group (d) Z is selected from the group consisting of hydrogen, C1-C4 alkyl, C1-C4 alkenyl, C1-C4 monohaloalkyl, C1-C4 alkoxy(C1--C4)alkyl, amino, C1-C4 mono- or di-alkylamino, the unsubstituted and substituted aryl groups phenyl and naphthyl, and the unsubstituted and substituted heterocyclic groups pyridyl, thienyl, furyl, piperidinyl furfuryl, the aryl and heterocyclic substituents being selected from the group consisting of C1-C4 alkyl, C1-C4 monohaloalkyl, C1-C4 polyhaloalkyl, C1-C4 alkoxy(C1-C4)alkyl, C1-C4 alkoxy and halogen, said halogen (or halo group) being fluorine or chlorine, and (e) g is the integer 1 or 2 when X is sulfur and is the integer 1 when X is oxygen or －N－J″, and II. B and B′are each selected from the group consisting of: (a) the unsubstituted or substituted aryl groups phenyl and naphthyl, (b) the unsubstituted or substituted heterocyclic groups pyridyl, thienyl, furyl, piperidinyl and furfuryl, (c) C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy(C1-C4)alkyl, C3-C6 cycloalkyl, C1-C4 alkoxy(C3-C6) cycloalkyl, and halo C3-C6 cycloalkyl, said halo group being fluorine or chlorine, and (d) B and B′may combine and taken together form the group, adamantylidene, the aryl group substituents being selected from C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy, C1-C4 alkoxy(C1-C4)alkyl and halogen, the heterocyclic group substituents being selected from C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy, C1-C4 alkoxy(C1-C4)alkyl and halogen, said halogen (or halo group) being fluorine or chlorine.
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