摘要:
Provided are: a curable composition that shows good adhesion on a printed wiring board, particularly a flexible substrate or the like, and has a high hardness; a resist coating film of the curable composition; and a printed wiring board having a resist pattern of the resist coating film. The curable composition comprises: (A) a photobase generator; (B-1) an epoxy group-containing (meth)acrylate compound or (B-2) a carboxyl group-containing (meth)acrylate compound; (C) a photopolymerization initiator; and (D-1) a thermosetting component (excluding the (B-1) epoxy group-containing (meth)acrylate compound) or (D-2) a thermosetting component (excluding the (B-2) carboxyl group-containing (meth)acrylate compound).
摘要:
Provided are: a curable composition that has excellent flexibility and shows excellent adhesion to both a plastic substrate and a conductor layer; a coating film of the curable composition; and a printed circuit board comprising a pattern-cured coating film obtained from the coating film. The present invention relates to: a curable composition for a printed circuit board, which is characterized by comprising (A) a block copolymer, (B) a hydroxyl group-containing (meth)acrylate compound and (C) a photopolymerization initiator; a coating film obtained by photo-curing the curable composition; and a printed circuit board comprising a resist pattern formed from the coating film.
摘要:
A curable resin composition for ink-jet printing characterized by comprising (A) a bisallylnadiimide compound represented by the following general formula (1): [Chemical formula 1] (1) (wherein R1 represents C2-18 alkyl, aryl, or aralkyl), (B) a bismaleimide compound represented by the following general formula (2): [Chemical formula 2] (2) (wherein R2 represents C2-32 alkyl, aryl, or aralkyl), and (C) a diluent and having a viscosity at 25°C of 150 mPa·s or lower.
摘要:
A photocurable and thermosetting resin composition comprising (A) an actinic radiation curable resin bearing one or more structures represented by the general formula (1), (B) a photopolymerization initiator, (C) a diluent, and (D) a thermosetting component: (1) wherein R1 is hydrogen or C¿1-6? alkyl; R?2, R3, and R4¿ are each hydrogen, C¿1-6? alkyl, aryl, aralkyl, cyano, fluoro, or furyl; and X is a polybasic acid anhydride residue.
摘要:
A photocuring/thermosetting inkjet composition contains (A) a monomer having a (meth)acryloyl group and a thermosetting functional group in the molecule, (B) a photoreactive diluent other than the component (A) having a weight-average molecular weight of not more than 700, and (C) a photopolymerization initiator, and has a viscosity of not more than 150 mPa·s at 25˚C. A solder resist pattern is directly drawn on a printed wiring board by an inkjet printer using the above-mentioned composition, and the pattern is primarily cured by irradiation with an active energy beam and then further cured by heat.
摘要:
A liquid thermosetting resin composition comprising (A) an epoxy resin, (B) a curing catalyst, and (C) a filler, which is characterized by exhibiting a viscosity of 1500 dPa s or below at 25°C, a gel time of 300 s or above at a temperature at which the composition exhibits a melt viscosity of 10 dPa s or below, and a gel time of 600 s or below at 130°C. In producing a printed wiring board by forming an interlayer dielectric layer of a resin and a conductive circuit on the surface of a wiring substrate having a conductive circuit pattern including holes, the holes are plugged by filling the holes with the above composition, precuring the resulting composition by heating, abrading and removing the protrusions of the composition from the surface, and curing the remaining composition completely by additional heating. Thus, the via holes or through holes of a printed wiring board can be plugged with good workability.
摘要:
A method for forming a circuit pattern on a ceramic green sheet is provided having excellent productivity at a low-cost. The method is characterized in that alkaline soluble conductive paste (a), which contains binder soluble in alkaline aqueous solution and conductive particles as main ingredients, is filled in the via-holes of the ceramic green sheet without using a mask, and subsequently alkaline soluble photosensitive conductive paste (b) is further applied on the green sheet for a circuit pattern and is dried. Thereafter, the pattern is exposed to a light and is developed.
摘要:
A photo-curable, electrically conductive composition comprising (A) black, electrically conductive particles having a relative surface area more than 20 m2/g, (B) an organic binder, (C) a photopolymerizable monomer and (D) a photopolymerization initiator is the essential feature of the composition of the invention, and a second embodiment is a composition which further comprises (E) inorganic particles. Such a photo-curable conductive composition is applied on transparent electrodes (3a, 3b) of a front glass substrate (1), is exposed to a light according to a predetermined pattern, is developed and burned, to thereby form a lower layer (black layer) electrode circuit of bus electrodes (4a, 4b). The composition can be used for forming a lower layer (black layer) electrode circuit which provides satisfactory conductivity and blackness at the same time in the formation of an electrode on a front substrate of a plasma display panel (PDP).
摘要:
There is provided a curable resin composition in which it is easy for bubbles generated in a film of the curable resin composition applied on a substrate to escape and which is excellent in heat resistance, dryability, electroless gold platability, flexibility and bendability. The curable resin composition contains (A) an alkali-soluble resin, (B) a photopolymerization initiator, (C) a compound having a molecular weight of 300 to 1,000 and two ethylenically unsaturated groups, and (D) a thermosetting component. The viscosity variation of the curable resin composition is not more than 20 when 0.2 ml of the curable resin composition is interposed between two stainless steel sensor plates of 35 mm in diameter and left at 25°C for 60 seconds, and then the shear stress is varied from 0.0001 Pa to 1.0E+4 Pa.
摘要:
[Problem to be Solved] Provided is a curable composition for inkjet printing for obtaining a cured product excellent in heat resistance, adhesion to a substrate, and hardness. [Solution] The curable composition for inkjet printing comprises (A) a multi-branched oligomer or polymer having an ethylenically unsaturated group, (B) a photopolymerization initiator, and (C) a thermosetting compound.