摘要:
Disclosed herein is a heat-shrinkable laminate film comprising outer layers of a polyolefin, a gas-barrier layer of a copolymer of vinylidene chloride, at least one intermediate layer of an ionomer and adhesive layers disposed between any of the above layers, the total thickness of the intermediate layer(s) of an ionomer being 5 to 20% of the total thickness of the heat-shrinkable laminate film.The heat-shrinkable laminate film is particularly useful in packaging foodstuffs.
摘要:
Disclosed herein are an impregnating oil prepared by admixing an isocyanate compound of tolylene diisocyanate and/or 4,4-diisocyanate-3,3-dimethyldiphenyl with an insulating oil of 1-tolyl-2-phenylethane, 1-ethylphenyl-2-phenylethane, 1-isopropylphenyl-2-phenylethane and/or 1,2-ditolylethane and a capacitor comprising two metallized plastic films impregnated with the thus prepared impregnating oil.
摘要:
Disclosed herein are the derivatives of tetrahydrobenzothiazole represented by the general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, a straight-chain alkyl group having 1 to 6 carbon atoms or branched-chain alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms or a phenyl group and R.sup.2 represents a chemical group selected from the group consisting of: ##STR2## wherein R.sup.3 represents a hydrogen atom, a methyl group or an acetyl group and R.sup.4 represents a hydrogen atom, a hydroxyl group, methoxy group or acetoxy group and herbicidal compositions containing at least one of the derivatives of tetrahydrobenzothiazole as an active ingredient.
摘要:
Disclosed herein are a derivative of tetrahydrobenzothiazole represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 represent respectively a straight chain alkyl group having 1 to 6 carbon atoms or a branched chain alkyl group having 1 to 6 carbon atoms, and a herbicidal composition containing the same as an active ingredient.
摘要:
A vinylidene fluoride resin composition which comprises 100 parts by weight of vinylidene fluoride resin and 0.1 to 10 parts by weight of glycidyl (meth)acrylate resin, said glycidyl (meth)acrylate resin being a polymer composed of at least one of glycidyl acrylate and glycidyl methacrylate, or a copolymer composed of a monomer selected from the group consisting of methyl acrylate, methyl methacrylate, ethyl acrylate and ethyl methacrylate and at least one of glycidyl acrylate and glycidyl methacrylate.The resin composition has improved thermal stability and electrical properties, and is immune to deleterious discoloration.
摘要:
A copolymer of 20 to 33 mol. % vinylidene fluoride, 15 to 45 mol. % of ethylene and 30 to 65 mol. % of tetrafluoroethylene gives a dielectric material having a large dielectric constant of 4.0 or above and a small dielectric dissipation factor (tan .delta.) of 0.8% or below, and is suitable for use as a condenser film.
摘要:
Disclosed is a polarized, shaped material comprising a copolymer of 40 to 87 mol % of vinylidene fluoride, 10 to 40 mol % of trifluoroethylene and 3 to 20 mol % of vinyl fluoride.
摘要:
A cell unit for observing electrophoresis comprisinga seal member in the form of an endless loop having penetrating holes passing therethrough between outside and inside of the loop at opposing positions of a circumferential wall thereof,a cell situated substantially in the inside of the loop, the cell defining therein a space for accommodating a liquid specimen, an electrophoretic property of which is to be observed, and including a pair of tubular end parts each having an opening communicated with the space and being fitted in a liquid-tight manner to the respective one of the penetrating holes in the seal members, anda pair of enclosing members, for defining, around the cell, a space for accommodating a liquid to control a temperature of the specimen in the cell, each enclosing member having an edge in the form the endless loop in close contact with a respective one end face, in the form of the loop, of the seal member ensures an easy mounting of the measurement cell at a desired position.
摘要:
Disclosed is a pharmaceutical composition in dosage unit form which comprises a dosage effective for the treatment of myodystrophia of a compound of 24,25-dihydroxycholecalciferol and a pharmaceutical acceptable carrier or diluent therefor.
摘要:
A substrate for liquid chromatography comprising a spherical particle of highly cross-linked polymer which is produced from (a) 100 parts by weight of a monomer of vinyl ester, acrylate or methacrylate, these esters having a long alkyl chain, if desired, together with a comonomer copolymerizable with the monomer and (b) 10 to 80 parts by weight of a cross-linking agent copolymerizable with the monomer and having at least two functional groups, and a process for isolating and purifying a fat-soluble substance, for instance, a lower alkyl ester of eicosapentaenoic acid or docosahexaenoic acid by means of the liquid chromatography on the substrate.