摘要:
A positive type photoresist composition comprising at least one alkali-soluble resin, at least one quinone diazide compound and a compound of the general formula (I) ##STR1## wherein R.sub.1 and R.sub.2 represents alkyl groups having 1 to 8 carbon atoms or a cycloalkyl group having 1 to 8 carbon atoms, R.sub.3 represents hydrogen, an alkyl group having 1 to 4 carbon atoms or halogen, R.sub.4 represents hydrogen or a cyano group and R.sub.5 represents a cyano group or a carboxyl group.
摘要:
An acrylonitrile resin composition capable of affording shaped articles having superior alcohol resistance, impact strength, transparency and gas-impermeability, said composition consisting essentially of (A) a resinous copolymer obtained by polymerizing a monomeric mixture consisting of (1) 60 to 90% by weight of acrylonitrile, (2) 1 to 35% by weight of at least one acrylic monomer selected from the group consisting of alkyl acrylates and alkyl methacrylates with the alkyl group containing 1 to 6 carbon atoms, and (3) 0.5 to 15% by weight of an alkyl methacrylate with the alkyl group containing 12 to 18 carbon atoms; and (B) a graft copolymer obtained by polymerizing (1) 40 to 80 parts by weight of a monomeric mixture consisting of (i) 30 to 90% by weight of acrylonitrile, (ii) 1 to 70% by weight of at least one acrylic monomer selected from the group consisting of alkyl acrylates and acryl methacrylates with the alkyl group containing 1 to 6 carbon atoms and (iii) 0 to 15% by weight of an alkyl methacrylate with the alkyl group containing 12 to 18 carbon atoms, in the presence of (2) 20 to 60 parts by weight of a diene-type rubbery polymer composed of at least 50% by weight of a conjugated diene unit and at most 50% by weight of an acrylonitrile unit, the total amount of the diene-type rubbery polymer (2) and the monomeric mixture (1) being 100 parts by weight; the ratio of the resinous copolymer (A) to the graft copolymer (B) being such that the content of the diene-type rubbery polymer used to prepare the graft copolymer (B) being 3 to 20% by weight based on the weight of the composition.
摘要:
A protective material for electronic parts comprises monoalkylated phenol.formaldehyde novolak resin having 6 to 12 carbon atoms in the alkyl group, and a process for the production of electronic parts, which comprises the following steps A to C:A. covering a device side surface of a semiconductor plate on which semiconductor elements and so forth are mounted with a protective film of a protective material comprising monoalkylated phenol.formaldhyde novolak resin having 6 to 12 carbon atoms in the alkyl group;B. finishing the other or backside surface of the semiconductor plate, not covered with the protective film, to reduce the thickness of the plate; andC. removing the protective film with a solvent.
摘要:
A resin composition comprising an epoxy group-containing cycloolefin resin and a crosslinking agent is provided. More specifically, a resin composition comprising an epoxy group-containing thermoplastic norbornene resin obtained by introducing epoxy groups into a thermoplastic norbornene resin, and as the crosslinking agent, a curing agent for epoxy resins or a photoreactive substance is provided. The resin composition is suitable for use as an insulating material.
摘要:
A resin composition comprising an epoxy group-containing cycloolefin resin and a crosslinking agent is provided. More specifically, a resin composition comprising an epoxy group-containing thermoplastic norbornene resin obtained by introducing epoxy groups into a thermoplastic norbornene resin, and as the crosslinking agent, a curing agent for epoxy resins or a photoreactive substance is provided. The resin composition is suitable for use as an insulating material.
摘要:
An apparatus for feeding a variety of doping liquid used in doping-liquid treatment processes for electronic materials such as semiconductors and precision machinery components, and a feeding monitor apparatus. More specifically, it relates to an apparatus for stably feeding the doping liquid while detecting its volume, in the case where the doping liquid is fed from a liquid-filled hermetic returnable can to the doping liquid treatment process, and a feeding monitor apparatus is connected between the returnable can and treatment process.
摘要:
A resin composition comprising an epoxy group-containing cycloolefin resin and a crosslinking agent is provided. More specifically, a resin composition comprising an epoxy group-containing thermoplastic norbornene resin obtained by introducing epoxy groups into a thermoplastic norbornene resin, and as the crosslinking agent, a curing agent for epoxy resins or a photoreactive substance is provided. The resin composition is suitable for use as an insulating material.