Organotin-based bifunctional reagents: 4-chloro-2-lithio-1-botene and related substances
作者:Edward Piers、Veranja Karunaratne
DOI:10.1016/0040-4020(89)80019-5
日期:——
transformed into the Grignard reagent 6 or the cuprates 7 and 8. Reagents 6–8 are useful for effecting methylenecyclopentaneannulations, as illustrated by the conversions of 31–36 into 43–48, respectively. This novel annulation method played a key role in a total synthesis of the sesquiterpenoid (±)-Δ9(12)-capnellene (55).
[EN] WATER-BASED UV INKJET INK<br/>[FR] ENCRE À BASE D'EAU DURCISSABLE PAR UV POUR L'IMPRESSION PAR JET D'ENCRE
申请人:SUN CHEMICAL CORP
公开号:WO2015183719A1
公开(公告)日:2015-12-03
The invention describes the use of a water-based UV curable inkjet printing ink wherein the ink is basic due to the presence of a tertiary amine, allowing the complete dissolution of an acid functional photoinitiator of Formula I or Formula IA (wherein R1, R2, R3, n, q, and y are as defined herein). This combination of photoinitiator and tertiary amine allows the rapid low dosage UV curing of a water-based UV formulation using a UV LED light source.
An ink for inkjet recording includes water; a hydrosoluble solvent, a pigment, and a copolymer including a salt of a diphosphonic acid group. The copolymer including a salt of a diphosphonic acid group includes structural units having the following formulae (1) and (2):
X represents an alkylene group having 1 to 3 carbon atoms, each of R1 and R2 represents a hydrogen atom or a methyl group, M+ represents an alkali metal ion, an organic ammonium ion or a proton and Z1 represents a hydrocarbon group having 6 to 22 carbon atoms. The alkali metal ion or the organic ammonium ion and the proton may be mixed, and half or more of the M+ are alkali metal ions or the organic ammonium ions.
High molecular weight polystyrene in inks and coatings
申请人:SUN CHEMICAL CORPORATION
公开号:US10689500B2
公开(公告)日:2020-06-23
Described herein are depolymerized polystyrene resins derived from polystyrene source resins. The depolymerized polystyrene resins undergo a depolymerization in which chemical bonds are cleaved, producing depolymerized polystyrene resins of lower molecular weight. The polystyrene resins may be modified by chemical reaction with monomers, polymers, and oligomers, such as acrylates thereof. Also described are ink and coating compositions that include the depolymerized and modified polystyrene resins.
Water based, energy curable ink jet compositions that have good insulating properties are described herein. The inventive water based energy curable ink jet compositions include a water soluble or water dispersible component polymerizable by free radical polymerization upon exposure to polymerizing radiation, wherein the cured ink jet compositions have good insulating properties, exhibited for example, by its breakdown voltage. Also described are electronic devices including ink jet-printed layers of the ink jet compositions.