IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0988189
(1992-12-09)
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발명자
/ 주소 |
- Neckers Douglas C. (Perrysburg OH) Shi Jianmin (Bowling Green OH)
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| 출원인 / 주소 |
- Spectra Group Limited, Inc. (Maumee OH 02)
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| 인용정보 |
피인용 횟수 :
23 인용 특허 :
0 |
초록
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Disclosed is a photooxidizable initiator composition comprising a fluorone initiator and a coinitiator which is capable of accepting an electron from the fluorone upon excitation of the fluorone by actinic radiation, wherein the composition produces free radicals which initiate free radical reaction
Disclosed is a photooxidizable initiator composition comprising a fluorone initiator and a coinitiator which is capable of accepting an electron from the fluorone upon excitation of the fluorone by actinic radiation, wherein the composition produces free radicals which initiate free radical reactions; and photohardenable compositions which comprise a free radical polymerizable compound, a fluorone initiator and a coinitiator capable of accepting an electron from the fluorone upon exposure of the composition to actinic radiation, and producing free radicals which initiate free radical polymerization.
대표청구항
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A photohardenable composition comprising a free radical polymerizable compound, a halogen substituted fluorone represented by the formulas (I) or (II) [Figure] (I) [Figure] (II) where Y is oxygen, sulfur, selenium, tellurium, or >C=O, R is hydrogen, alkenyl, alkyl, alkynyl or an electron withdrawing
A photohardenable composition comprising a free radical polymerizable compound, a halogen substituted fluorone represented by the formulas (I) or (II) [Figure] (I) [Figure] (II) where Y is oxygen, sulfur, selenium, tellurium, or >C=O, R is hydrogen, alkenyl, alkyl, alkynyl or an electron withdrawing group selected from the group consisting of quaternary amino, nitro, nitroso, cyano, －SO3R′, －SO2R′, halogen, trihalomethyl, －CHO, carbamoyl, sulfamoyl, sulfinyl, －COOR′COR″, －C(O)OCOR′, NCS and NCO where R′is hydrogen, alkyl, aryl, or aralkyl; and R1-R6 are the same or different and represent a hydrogen atom, a halogen atom, alkyl, alkenyl, aryl, aralkyl, alkaryl, SO3R, SO2R, SO2, NRS, NO2, NCO, NCS (CH2)nNCO, (CH2)n NCS, CN, (CH2)nCN, (CH2)nCOOR′, (CH2)nCONR2, (CH2)nX, or (CH2)nNR2, provided that at least one of R1-R6 is a halogen atom; n is 1 to 6; R1 and R2 may combine to form a 10 to 12 membered ring; and R″is hydrogen, alkyl, aryl, aralkyl, N-imido, or NR2; and a coinitator selected from the group consisting of nitrohalomethanes, diazosulfones, onium salts, ferrocenium salts and thiapyrylium salts, said coinitiator capable of accepting an electron from said flurone upon exposure of said composition to actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said free radical polymerizable or crosslinkable compound.
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