Abstract:
The present invention relates to a curable composition comprising at least one type of non-charged curable monomer, at least one type of anionic curable monomer, at least one type of cationic compound haying a molecular weight of at least 150 Da and a solvent. The invention further relates to porous membranes made from these curable compositions and to image recording materials, in which these porous membranes are used.
Abstract:
The present invention relates to a porous membrane formed by curing at least one type of anionic monomer by UV irradiation in the presence of a photo-initiator wherein said porous membrane has at least 0.1 meq negative charges per m 2 , preferably between 0.3 and 5 meq negative charges per m 2 . The invention further relates to image recording materials, in which these porous membranes are used.
Abstract translation:本发明涉及通过在光引发剂的存在下通过UV照射固化至少一种类型的阴离子单体形成的多孔膜,其中所述多孔膜每m 2 O 2具有至少0.1meq的负电荷, ,优选在0.3-5meq负电荷/ m 2之间。 本发明还涉及使用这些多孔膜的图像记录材料。
Abstract:
The present invention relates to a process for making microporous membranes by curing compounds through radiation. The invention further relates to image recording materials, in which these microporous membranes are used. According to the present invention a microporous membrane is prepared by the steps of providing a curable compound solvent mixture, wherein the concentration of said curable compound is between 20 and 80 weight percent and wherein at least 30 weight percent of said solvent is water; applying said mixture to a support; curing said curable compound mixture by exposing to radiation, thereby causing phase separation between the crosslinked curable compound and the solvent; subjecting the resulting microporous membrane to a drying or washing step to remove said solvent; and optionally separating the support and the microporous membrane.
Abstract:
The invention is directed to recording media, in particular swellable inkjet recording media of photographic quality that have excellent image printing quality, outstanding absorption speed, as well as good lightfastness. According to the present invention a recording medium is provided comprising a support and an ink receiving layer adhered to said support, wherein the ink-receiving layer is a multilayer comprising an overlayer and an underlayer, wherein the overlayer comprises a specific water soluble polymer and an optical brightening agent. The present invention is further directed to methods for preparing and using such a medium
Abstract:
The invention is directed to recording media, in particular swellable inkjet recording media. The inkjet recording media of the present invention comprise a support and an ink receiving layer adhered to said support, wherein the ink receiving layer is a multilayer having at least one layer comprising a water soluble polymer and at least one compound according to general formula (I): wherein: at least one of X 1 , X 2 and X 3 is C and the other(s) is (are) N, wherein X 1 -X 3 and the two N atoms in the 1 and 3 position form a five ring; and R 1 is cyclic C 6 , R 2 and R 3 are each independently selected from H, C 1 -C 6 alkyl, hydroxyl, C 1 -C 2 alkoxy, mercapto, C 1 C 6 alkylthio, amino, alkylamino, dialkylamino, halogen, sulfonyl, and carboxyl, wherein R 1 may be absent if X 2 is N, R 2 may be absent if X 3 is N and R 3 may be absent if X 1 is N, or R 1 and R 2 combined form a 6-membered ring fused to the five ring, which 6-membered ring may be heterocyclic and is optionally substituted, wherein each of the bonds may be single or double. The media of the present invention have improved properties, in particular with respect to beading behaviour.
Abstract:
A membrane obtainable from curing a composition comprising (i) a curable compound comprising at least two acrylic groups and a quaternary ammonium group; (ii) solvent; and optionally (iii) a curable compound having one ethylenically unsaturated group.
Abstract:
The present invention relates to a porous membrane and a recording medium comprising a support and said porous membrane wherein said porous membrane is formed on said support by curing by radiation a curable composition comprising at least one curable compound and a solvent, wherein said porous membrane has a swellability upon contact with water or an aqueous medium of at least 5% with respect to the dry thickness of the membrane.
Abstract:
A membrane obtainable from curing a composition comprising: (i) a curable compound comprising at least two (meth)acrylic groups and a sulphonic acid group and having a molecular weight which satisfies the equation: MW
Abstract:
Membranes and processes for preparing membranes having weakly acidic or weakly basic groups comprising the steps of: (i)applying a curable composition to a support; (ii)curing the composition for less than 30 seconds to form a membrane; and (iii)optionallyremoving the membrane from the support; wherein the curable composition comprises a crosslinking agent having at least two acrylic groups. The membranes are particularly useful for producing electricity by reverse electrodialysis.
Abstract:
The present invention relates to a porous membrane obtainable by providing a mixture of at least one type of curable monomer and a solvent, applying said mixture to a support, curing said mixture, thereby causing phase separation between the crosslinked monomer and the solvent, subjecting the resulting porous membrane to a washing and/or drying step to remove said solvent and re-curing the porous membrane after drying or partial drying the membrane. The invention further relates to image recording materials, in which these porous membranes are used.