[EN] SUBSTITUTED 5,6-RING-FUSED NAPHTHOPYRAN COMPOUNDS<br/>[FR] COMPOSÉS DE NAPHTOPYRANE SUBSTITUÉ À CYCLE CONDENSÉ EN POSITION 5,6
申请人:TRANSITIONS OPTICAL INC
公开号:WO2014164046A1
公开(公告)日:2014-10-09
The present invention relates to naphthopyran compounds that include at least one compound represented by the following Formulas (I), (II), and (III): With reference to Formulas (I), (II), and (III), there is the proviso that: (i) at least one R1 is a group L; and/or (ii) B and/or B' is substituted with at least one group L. The group L can be described as a lengthening group. The present invention also relates to photochromic-dichroic naphthopyran compounds and photochromic-dichroic articles containing such compounds.
本发明涉及萘吡喃化合物,其中至少包括以下式(I)、(II)和(III)所代表的化合物:参照式(I)、(II)和(III),有以下规定:(i) 至少一个R1是一个L基团;和/或 (ii) B和/或B'被至少一个L基团取代。L基团可被描述为一个延长基团。本发明还涉及光致变色-双折射萘吡喃化合物和含有这种化合物的光致变色-双折射物品。
Ethenolate Transfer Reactions: A Facile Synthesis of Vinyl Esters
作者:Srinivasan Kaliyaperumal Appaye、Satish Pandurang Nikumbh、Rajeshwar Reddy Govindapur、Shyamapada Banerjee、Dinesh S. Bhalerao、Unniaran K. Syam Kumar
DOI:10.1002/hlca.201300396
日期:2014.8
and efficient metal‐free ethenolate transfer reaction has been elaborated in moderate‐to‐high yields from vinyl acetate. This reaction was accomplished by generation of potassium ethenolate, which was then reacted with homo and mixed anhydrides of aliphatic, aryl and heteroaryl acids, to yield the corresponding vinylesters. The utility of thus generated vinylesters was then probed by carrying out intramolecular
A composition for use as an assay reagent includes a paramagnetic solid support comprising a coating of a synthetic copolymer. The synthetic copolymer comprises two or three of a first copolymerized monomer, a second copolymerized monomer and a third copolymerized monomer and further comprises a polyethylenic backbone.
Alternating copolymers of isobutylene type monomers
申请人:——
公开号:US20030170394A1
公开(公告)日:2003-09-11
A copolymer composition that includes a copolymer comprised of at least 30 mol % of residues having the following alternating residues from a donor monomer and from an acceptor monomer. The copolymer contains at least 15 mol % of an isobutylene type donor monomer and at least 15 mol % of an acrylic monomer as an acceptor monomer. The copolymer is substantially free of maleate or fumarate monomer segments and the copolymer composition is substantially free of Lewis acids and transition metals. Also disclosed is a thermosetting composition that includes a reactant comprising functional groups, a crosslinking agent having at least two functional groups that are reactive with the functional groups first reactant, and a copolymer flow control agent that includes the copolymer composition as well as substrates coated with the thermosetting composition.
Thermosetting compositions containing alternating copolymers of isobutylene type monomers
申请人:——
公开号:US20030171497A1
公开(公告)日:2003-09-11
A thermosetting composition that includes an ungelled copolymer composition and a crosslinking agent. The ungelled copolymer composition includes a functional group-containing copolymer that includes segments of alternating residues derived from a donor monomer composition comprising an acceptor monomer composition. The donor monomer composition includes one or both of isobutylene and diisobutylene, and the acceptor monomer composition includes acrylic monomers and monomers containing functional groups. The ungelled copolymer composition is substantially free of transition metals and Lewis acids, and the copolymer is substantially free of maleate-type monomer residues and fumarate-type monomer residues. The crosslinking agent has at least two functional groups that are reactive with the functional groups of the copolymer. The thermosetting composition may be in liquid, powder, or dispersed form and may be applied by traditional or electrocoating methods.