The present invention concerns functionalized photoreactive compounds of formula (I), that are particularly useful in materials for the alignment of liquid crystals. Due to the adjunction of an electron withdrawing group to specific molecular systems bearing an unsaturation directly attached to two unsaturated ring systems, exceptionally high photosensitivities, excellent alignment properties as well as good mechanical robustness could be achieved in materials comprising said functionalized photoreactive compounds of the invention.
The present invention relates to novel compounds that are particularly useful for the alignment, especially photoalignment, of slave material, especially liquid crystals for optical or electro-optical applications, such as security applications, liquid crystal devices or optical or electro-optical films.
The present invention relates to novel compounds that are particularly useful for the alignment, especially photoalignment, of slave material, especially liquid crystals for optical or electro-optical applications, such as security applications, liquid crystal devices or optical or electro-optical films.
Interpenetrating networks from unsaturated monomers and thermosetting resins
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0632059A2
公开(公告)日:1995-01-04
A cured resin product obtained by mixing (A) a compound having an addition-polymerizable group and capable of yielding a thermoplastic resin by its polymerization and (B) a thermosetting resin to form a uniform solution or dispersion and then curing the component (B) while simultaneously polymerizing the component (A), a process for producing the same, a resin composition, and the use of the same.
As compound A olefinically unsaturated monomers like styrene, acrylonitrile or (meth)acrylates, particularly perfluoroalkyl(meth)acrylates, are preferred.
The thermosetting resin is for example a cyanate, maleimide, phenolic or preferably epoxy resin in combination with a suitable curing agent. The compositions are used for water repellent coatings or for sealing semiconductor elements.
将(A)具有可加成聚合基团并能通过聚合生成热塑性树脂的化合物与(B)热固性树脂混合形成均匀溶液或分散液,然后在使组分(A)聚合的同时固化组分(B)而得到的固化树脂产品、生产该产品的工艺、树脂组合物以及该产品的用途。
化合物 A 首选烯烃不饱和单体,如苯乙烯、丙烯腈或(甲基)丙烯酸酯,特别是全氟烷基(甲基)丙烯酸酯。
热固性树脂可以是氰酸酯树脂、马来酰亚胺树脂、酚醛树脂,最好是环氧树脂,再加上适当的固化剂。这种组合物可用于防水涂层或密封半导体元件。
Functionalized photoreactive compounds
申请人:Rolic AG
公开号:EP1764405A1
公开(公告)日:2007-03-21
The present invention concerns functionalized photoreactive compounds of formula (I) that are particularly useful in materials for the alignment of liquid crystals.
Due to the adjunction of an electron withdrawing group to specific molecular systems bearing an unsaturation directly attached to two unsaturated ring systems, exceptionally high photosensitivities, excellent alignment properties as well as good mechanical robustness could be achieved in materials comprising said functionalized photoreactive compounds of the invention.