摘要:
Storage stabilization of compounds with an oxetane ring or oxetane rings, which are useful as ring opening polymerizable monomers, is improved by addition of basic compounds thereto. The basic compound is preferably an alkali metal hydroxide or an amine. The compound with an oxetane compound preferably has a substituent at the 3- or 2-position thereof. Addition amount of the basic compound is preferably 0.1 to 1,000 ppm by weight, more preferably 1 to 1,000 ppm by weight per the compound with an oxetane.
摘要:
A gas diffusion electrode assembly comprising: a gas diffusion electrode; and a metallic or resinous edging material bonded to a peripheral part of the electrode. The invention also relates to a gas diffusion electrode assembly comprising: a gas diffusion electrode; and a metallic terminal bonded to the electrode. The invention further relates to a gas diffusion electrode assembly comprising: a gas diffusion electrode; and a structure for connection, which comprises a combination of a thin silver sheet and a reinforcing material comprising a tough metal as a base, the structure for connection being bonded to a peripheral part of the gas diffusion electrode. Also disclosed are processes for producing these gas diffusion electrode assemblies.
摘要:
Storage stabilization of compounds with an oxetane ring or oxetane rings, which are useful as ring opening polymerizable monomers, is improved by addition of basic compounds thereto. The basic compound is preferably an alkali metal hydroxide or an amine. The compound with an oxetane compound preferably has a substituent at the 3- or 2-position thereof. Addition amount of the basic compound is preferably 0.1 to 1,000 ppm by weight, more preferably 1 to 1,000 ppm by weight per the compound with an oxetane.
摘要:
A process for producing a pressure-sensitive adhesive sheet using an aqueous resin emulsion is disclosed. The aqueous resin emulsion is an aqueous resin emulsion that dispersed particles have a weight average particle diameter of 0.3 µm or smaller and a ratio of the weight average particle diameter thereof to an arithmetic average particle diameter thereof [(weight average particle diameter)/(arithmetic average particle diameter)] is 1.0 to 1.5. The resin contained in the aqueous resin emulsion preferably comprises an alkyl (meth)acrylate monomer unit (a) having 4 to 12 carbon atoms in the alkyl moiety, an α,β-ethylenically unsaturated carboxylic acid monomer unit (b), and a radically polymerizable monomer unit (c) having a cyclic structure, other than the monomer units (a) and (b), the proportions of the monomer unit (a), the monomer unit (b), and the monomer unit (c) being 45 to 97% by weight, 0.1 to 10% by weight, and 2.9 to 30% by weight, respectively, with the total amount of those units being 100% by weight. The aqueous resin emulsion preferably contains a nonionic surfactant. The pressure-sensitive adhesive sheet obtained by the process has a property such that the pressure-sensitive adhesive layer thereof is less apt to blush even upon contact with water by immersion in water, moisture absorption, etc.
摘要:
A heat-sensitive adhesive sheet comprising a substrate having formed thereon an adhesive layer comprising a polymer composition (C) which comprises the following aqueous emulsion (A) and copolymer (B), wherein an adhesive force determined by the 180° peeling test method as specified in JIS Z 0237 at a temperature of 25°C is 10 g/25 mm or less:
Aqueous emulsion (A): An aqueous emulsion containing an alkyl (meth)acrylate-based polymer (a) having a glass transition temperature of -10°C or below, which is obtained by emulsion-polymerizing radically polymerizable monomers containing as the main component an alkyl (meth)acrylate; and Copolymer (B): A water-soluble or water-dispersible copolymer (B) having a glass transition temperature of 20°C or above, which is a copolymer obtained by copolymerizing an α,β-ethylenically unsaturated carboxylic acid with other radically polymerizable monomers, wherein a part or the entire amount of carboxyl groups in the copolymer is neutralized with a base having a boiling point of 110°C or below.
摘要翻译:1.一种热敏粘合片,其特征在于,具有在其上形成有包含下述水性乳液(A)和共聚物(B))的聚合物组合物(C)的粘合剂层的基材,其中,通过180°剥离试验方法测定的粘合力为 JIS Z 0237在25℃下规定为10g / 25mm以下:水性乳液(A):含有玻璃化转变温度为( - )的(甲基)丙烯酸烷基酯系聚合物(a)的水乳液, 通过使含有作为主要成分的(甲基)丙烯酸烷基酯的自由基聚合性单体进行乳液聚合而获得的10℃以下。 和共聚物(B):玻璃化转变温度为20℃以上的水溶性或水分散性共聚物(B),其是通过使α,β-烯键式不饱和羧酸与其他可自由基聚合的共聚物 单体,其中共聚物中的部分或全部羧基用沸点为110℃或更低的碱中和。
摘要:
The present invention relates to an antisense nucleic acid compound which has a nucleotide sequence complementary to at least 8 contiguous nucleotides in the nucleotide sequence of a gene coding for a vascular endothelial growth factor and which inhibits the expression of the vascular endothelial growth factor, as well as to a therapeutic or diagnostic agent for cancers, rheumatoid arthritis, diabetes etc., comprising said antisense nucleic acid as active ingredient. Further, the present invention relates to a method of preventing the expression of the vascular endothelial growth factor, comprising use of an antisense nucleic acid compound which has a nucleotide sequence complementary to at least 8 contiguous nucleotides in the nucleotide sequence of a gene coding for a vascular endothelial growth factor and which inhibits the expression of the vascular endothelial growth factor.
摘要:
An anaerobic curing adhesive composition of the disclosure contains a polymer or an oligomer having two or more (meth)acryloyl groups in one molecule, a polyfunctional ethylenically unsaturated compound other than the urethane (meth)acrylate, a radical polymerization initiator, and an anaerobic curing catalyst.
摘要:
An anaerobic curing adhesive composition of the disclosure contains a compound having an aromatic ring and an ethylenically unsaturated group, a polymer or an oligomer having two or more (meth)acryloyl groups in one molecule, a radical polymerization initiator, and an anaerobic curing catalyst.
摘要:
The problem to be solved by the present invention is to provide a multilayer sheet including an adhesive layer that includes an acid-modified polyolefin and a substrate layer that includes a polyphenylene ether, and having high peel strength between the adhesive layer and the substrate layer. The multilayer sheet of the present invention includes: a substrate layer (A) that includes 40 to 99.9% by mass of a polyphenylene ether (a1), 0 to 59.9% by mass of a polystyrene (a2), and an amino group-containing polymer (a3); and an adhesive layer (B) that includes an acid-modified polyolefin.