摘要:
The present invention pertains to a process for the manufacture of a grafted fluorinated polymer comprising at least one grafted side chain comprising one or more glycosidic recurring units [polymer (F)], said process comprising polymerizing: vinylidene fluoride (VDF), optionally, one or more other fluorinated monomers [monomers (F)], and optionally, one or more (meth)acrylic monomers [monomers (MA)], in the presence of at least one polysaccharide derivative [derivative (P)], said polysaccharide derivative having a dynamic viscosity of less than 15 mPa×s, as measured according to ASTM D445 at 20° C. in an aqueous solution at a concentration of 2% by weight, and by further providing novel polymers (F) as defined above.
摘要:
A rheology modifier copolymer of formula (I) wherein A is a polyacidic vinyl monomer selected from maleic, fumaric, itaconic, citraconic and acid combinations thereof and anhydrides and salts thereof, B is an acrylic or methacrylic acid or salt thereof; C is a C1-C8 ester of (meth)acrylic acid; D is an associative monomer; and optionally E is a crosslinking monomer.
摘要:
The present invention provides a sealant material for an optical semiconductor containing (A) one or more kinds of a (meth)acrylic compound selected from a (meth)acrylate-modified silicone oil, a long chain alkyl (meth)acrylate, and a polylakylene glycol (meth)acrylate having the number average molecular weight of 400 or more, (B) a (meth)acrylate compound having an ester bond with an alicyclic hydrocarbon group having 6 or more carbon atoms, and (C) a radical polymerization initiator; and an optoelectronic conversion element and an optoelectronic conversion device using thereof. The sealant material for an optical semiconductor of the present invention provides a cured product having excellent characteristics in transparency, stability to UV light and heat, yellowing resistance, and adhesion performance, and thus may be suitably used as a sealant material for a light emitting element, a light receiving element and the like in an optical semiconductor device (semiconductor light emitting device), especially as a transparent sealant material for optical semiconductors such as LED and the like.
摘要:
The biomedical adhesives of the invention provide a reactive surface to adhere or crosslink to tissue and may be used, for example, as ready-to-use corneal onlay in ophthalmic surgery. The invention provides a method for bonding a bulk material to a corresponding nucleophilic or electrophilic surface including attaching a multifunctionally activated bulk material compound to the bulk material and contacting a functional group of the compound with the surface under conditions permitting covalent linkage between the bulk material and the functional group.
摘要:
In accordance with the present invention, there are provided film adhesive compositions comprising at least one macromonomer having at least one unit of ethylenic unsaturation, at least one thermoplastic elastomer co-curable with the macromonomer, and at least one cure initiator, and methods for use thereof. Invention compositions are useful as adhesives in the microelectronics industry. In particular, invention film adhesives may be used to produce microelectronic assemblies with very thin bond lines without compromising adhesive strength.
摘要:
A water-based ink for inkjet printing, including (A) an aqueous dispersion A of vinyl polymer particles prepared by including an oil-soluble black dye or carbon black in a water-insoluble vinyl polymer prepared by copolymerizing a salt-forming group-containing monomer (a), a monomer (b) represented by the formula (I): CH2═C(R1)COO(R2O)pR3 (I) wherein R1 is hydrogen atom or a lower alkyl group; R2 is a divalent hydrocarbon group which may have a hetero-atom; R3 is a monovalent hydrocarbon group which may have a hetero-atom; p is a number of 1 to 60, a macromer (c), a monomer (d) copolymerizable with these monomers; and (B) an aqueous dispersion B of carbon black having the same ionicity as the aqueous dispersion A, wherein the weight ratio of the solid content of the aqueous dispersion A to the solid content of the aqueous dispersion B (the solid content of the aqueous dispersion A/the solid content of the aqueous dispersion B) is 5/95 to 95/5.
摘要翻译:一种用于喷墨印刷的水性油墨,包括(A)通过在水不溶性乙烯基聚合物中包含油溶性黑色染料或炭黑制备的乙烯基聚合物颗粒的水性分散体A,其通过将含有成盐基团的 单体(a),由式(I)表示的单体(b):其中R 1是氢原子或低级烷基; R 2是可以具有杂原子的二价烃基; R 3是可以具有杂原子的一价烃基; p是1至60的数,大分子单体(c),可与这些单体共聚的单体(d); 和(B)与水分散体A具有相同离子性的炭黑的水性分散体B,其中水分散体A的固体含量与水分散体B的固体含量的重量比(水分散体的固体含量 分散体A /水分散体B)的固体成分为5/95〜95/5。
摘要:
The present invention describes a novel coating process that comprises the use of a functional photoinitiator, or a macroinitiator derived therefrom, in a cascade of process steps, wherein, on the one hand, a functional photoinitiator or a macroinitiator derived therefrom is covalently bonded to a carrier and, on the other hand, an oligomer or polymer forming a new surface layer is covalently bonded to the functional photoinitiator, or to the carrier modified by a functional photoinitiator, via functional groups that are co-reactive with isocyanate groups. The invention relates also to novel intermediates that are carriers to which functional photoinitiators that contain free isocyanate groups are bonded.
摘要:
Water soluble macromers are modified by addition of free radical polymerizable groups, such as those containing a carbon-carbon double or triple bond, which can be polymerized under mild conditions to encapsulate tissues, cells, or biologically active materials. The polymeric materials are particularly useful as tissue adhesives, coatings for tissue lumens including blood vessels, coatings for cells such as islets of Langerhans, coatings, plugs, supports or substrates for contact with biological materials such as the body, and as drug delivery devices for biologically active molecules.
摘要:
A covalently crosslinked absorbent graft copolymer is provided comprised of a water-soluble base monomer and a water-soluble or water-dispersible macromer. In a preferred embodiment, the water-soluble base monomer comprises a carboxylic hydroxyalkyl ester monomer and the water-soluble macromer comprises an ethoxylated or propoxylated hydroxyalkyl (meth)acrylate. The covalently crosslinked absorbent graft copolymer exhibits desirable water absorbency and water vapor transmission rates and may be used in a variety of medical applications such as a wound dressing, medical adhesive or biomedical electrode.