摘要:
The present invention relates to an unsaturated group-containing polycarboxylic acid resin produced by reacting an epoxidized compound of a condensate of a phenolic compound and an aromatic aldehyde having a phenolic hydroxyl group with (meth)acrylic acid, and further reacting the reaction product with polybasic carboxylic acid or an anhydride thereof; a composition comprising the resin and a cured product of the resin or the composition. The composition according to the present invention is developable with an aqueous alkaline solution and suitable for a solder resist composition which is excellent in heat resistance, solvent resistance, adhesion, electric insulation property and storage stability.
摘要:
A resin composition for coating optical glass fibers comprises (A) a di-(meth)acrylic acid ester of a carbonate diol of an average molecular weight of 500 to 3000 or of an addition compound of said carbonate diol with e-caprolactone, (B) a monoethylenically unsaturated momomer and, optionally, (C) a photopolymerization initiator.
摘要:
Ethylenically unsaturated compounds represented by the general formula: wherein (a) R represents a hydrogen atom or a methyl group; (b) the average value of (i) each of m and n is from 1 to 5, (ii) p is from 1 to 6, (iii) each of q and r is from 0 to 3, (iv) s is from 0 to 5, (v) p + q + r + s is 6, (vi) q + r is from 0 to 3 and (vii) p + s is from 3 to 6 and (c) the average value of mp + nq is an integer of 1 to 30, are useful as vehicles in paints or inks.
摘要:
There are provided a resin composition and hardened products thereof for use in resistors, phosphors, conductors, patterns and the like, which can be developed with water or a dilute alkaline aqueous solution, show good pattern accuracy, give small residual organic matter after baking and have excellent adhesiveness. The resin composition which comprises (A) an unsaturated group-containing resin which is an epoxy methacrylate resulting from the reaction of (a) an epoxy resin having at least two epoxy groups in its molecule with (b) a compound having one unsaturated double bond and one carboxyl group in one molecule and (c) a saturated monocarboxylic acid as an optional component, the reaction product epoxy(meth)acrylate being allowed to react with (d) a polybasic acid anhydride as occasion demands, (B) a diluent, (C) a photopolymerization initiator and (D) one or more substances selected from metal powders, metal oxides, metal sulfides or glass.
摘要:
The composition of the present invention is excellent in compatibility, transparency and curability and give a cured coat of excellent gloss and of less smell, and cured products of excellent properties can be obtained by curing the composition. The present invention relates to an onium salt represented by the following formula (1):
wherein Ar is a mono- to tetra-valent aromatic group, X is a bisphenylsulfonio group which may have a substituent, a is 1-4, b is 0 or 1-3, a + b is 1-4, n is 1-4, and Z is a halide represented by the following formula (3):
where M is a boron atom, a phosphorus atom, an arsenic atom or an antimony atom, Q is a halogen atom, m is 3-6, ℓ is 0 or 1, and m + ℓ is 4-6; a photopolymerization initiator containing the onium salt as an active ingredient; an energy ray-curable composition containing the initiator; and a cured product.
摘要:
Acryloyloxygroups containing 1,3-dioxanederivatives wherein R1 represents H or CH 3 and R 2 represents CH 3 , C 2 H 5 or C 3 H 7 , and a process for producing them are provided.