Abstract:
A cured or uncured composition of a homopolymer or copolymer of an epihalohydrin comprising a homopolymer or copolymer of an epihalohydrin, a curing amount of a curing agent therefor and an acid acceptor, characterized in that the curing agent and acid acceptor are free from a cyclic carboxylic acid anhydride and consist, based on 100 parts by weight of the epihalohydrin homopolymer or copolymer, of(a) a component selected from the group consisting of 1 to 200 parts by weight of an acid salt of 1 mole of a polybasic carboxylic acid with 1 mole of 1,8-diazabicyclo(5,4,0)undecene-7 and a mixture of 1 to 200 parts by weight of a polybasic carboxylic acid and 1 to 10 parts by weight of a neutral salt of 1,8-diazabicyclo(5,4,0)undecene-7, and(b) 1 to 20 parts by weight of a specific metal compound of Group II and Group IVa of the periodic table of elements.
Abstract:
A cured or uncured composition of homo- or copolymer of epihalohydrins comprising a homo- or copolymer of an epihalohydrin, curable amounts of a curing agent therefor and an acid acceptor, characterized in that said curing agent and acid acceptor consist, on the basis of 100 parts by weight of said homo- or copolymer of epihalohydrin, of (a) 0.1 - 10 parts by weight of a cyclic carboxylic acid anhydride, (b) 0.1 - 10 parts by weight of a compound selected from the group consisting of 1,8-diazabicyclo(5,4,0)undecene-7 and salts thereof, and (c) 0.5 - 20 parts by weight of a metal compound selected from the group consisting of the oxides of the metals of group II of the periodic table of elements, hydroxides of said group II metals, carbonates of said group II metals, carboxylic acid salts of said group II metals, oxides of the metals of group IVa of the periodic table of elements, basic carbonates of said group IVa metals, basic carboxylic acid salts of said group IVa metals and basic phosphites of said group IVa metals.
Abstract:
A process for preparing a diallyl phthalate latex which comprises using in proportions of a total of 30 - 100 weight parts of monomer and a total of 0.3 - 10.0 weight parts of an anionic surfactant to a total of 100 weight parts of water, andI. carrying out the emulsion polymerization of the following emulsion polymerization system, i.e., an emulsion polymerization system comprisingA. water in an amount of 50 - 70 weight % of the total amount thereof,B. monomer in an amount of 10 - 20 weight % of the total amount thereof, said monomer being selected from the group consisting of a diallyl phthalate monomer and a diallyl phthalate-containing monomeric mixtureC. said surfactant in an amount of 10 - 20 weight % of total amount thereof, andD. a radical catalyst in toto; and, thenIi. at a period after the degree of polymerization has reached 50 weight % and before completion of the polymerization, furthering the emulsion polymerization reaction while slowly adding an additional emulsion polymerization system containing the following components but not containing said radical catalyst:A. water remaining of the total amount thereofB. monomer remaining of the total amount thereof, andC. said surfactant remaining of the total amount thereof.
Abstract translation:一种制备邻苯二甲酸二烯丙酯胶乳的方法,其包括使用总共30-100重量份单体和总共0.3-10.0重量份阴离子表面活性剂至总计100重量份水的比例,和I. 进行以下乳液聚合体系的乳液聚合,即包含A的乳液聚合体系。以50-70重量份的水,其总量的重量百分比为B,单位为10-20重量% 总共数量,由包含二元酚类单体和含二苯甲基单体单体混合物的组选择的所述单体C.以10-20重量%的总重量计的表面活性剂和D.总量为D.的放射性催化剂 IN TOTO; 和,那么二。 在聚合度达到50重量%之后并且在聚合完成之前的一段时间,在缓慢加入含有以下组分但不含所述自由基催化剂的另外的乳液聚合体系的同时进一步进行乳液聚合反应:
Abstract:
Improved process for preparing a cross-linked epichlorohydrin elastomer composition by heating an epichlorohydrin elastomer in the presence of a compound selected from the group consisting of the quinones and derivatives thereof of the following formula ##SPC1##Wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, are each a member selected from the class consisting of hydrogen and the hydrocarbon groups, and R.sub.1 and R.sub.2 taken together, may form a benzene ring.
Abstract:
A positive electrode for high energy primary cells which comprises a homogeneous mixture of a finely divided chlorinated amorphous carbon and an electrically conductive material selected from the group consisting of finely divided conductive carbons, conductive carbon fibers, finely divided conductive metals, conductive metallic fibers and mixtures thereof, said homogeneous mixture being bonded with a synthetic resin binder, with the proviso that the chlorine content of said finely divided chlorinated amorphous carbon ranges between 5 and 70 % by weight of the positive electrode, and a high energy primary cell comprising a subsequently defined positive electrode and a negative electrode of an alkali metal, said positive and negative electrodes being disposed in a cell casing with the interposition of an electrolyte solution consisting of a nonaqueous organic solvent solution of a solute.
Abstract:
Provided is an aqueous carbon nanotube dispersion with excellent dispersibility of carbon nanotubes in water. An aqueous carbon nanotube dispersion containing carbon nanotubes dispersed in water, wherein the carbon nanotubes have a mean particle diameter (D50) of 1 μm or less, and when the carbon nanotubes are prepared as an aqueous dispersion with a concentration of 0.1% by mass, a spin-spin relaxation time (T22) of a second component is 1000 msec or less as measured by a measurement method as set forth below:
The spin-spin relaxation time (T22) of the second component is calculated by fitting a relaxation curve measured at 30° C. using an H nuclear CPMG pulse sequence method to a curve represented by expression (1):
y ( t )
=
a 01
×
exp [
-
(
t / T
21
)
]
+
a 02
×
exp [
-
(
t / T
22
)
]
+
y 0
expression
( 1 )
where: t is a capture time; y(t) is a signal intensity at capture time t; T21 is a spin-spin relaxation time of a first component; T22 is the spin-spin relaxation time of the second component; and y0 is a signal intensity at capture time 0.
Abstract:
A composite solid electrolyte includes: a sulfide solid electrolyte; and a polymer electrolyte containing a polymer and a lithium imide salt, wherein the content of the lithium imide salt with respect to the polymer electrolyte is 40 mass % or more. A solid-state battery includes the composite solid electrolyte.
Abstract:
Provided is a novel electrically conductive adhesive which can yield a sintered body having low resistivity despite containing a thermosetting resin in addition to silver particles. This electrically conductive adhesive contains silver particles and a thermosetting resin. The silver particles are provided with a protective layer that contains a compound represented by general formula (1). [In general formula (1), R1 is an alkyl group having 1-5 carbon atoms, and R2 is a hydrogen atom or an alkyl group having 1-5 carbon atoms.]
Abstract:
The present invention aims to provide an active energy ray-curable ink composition which can constitute a composition having good flowability during printing. The present invention relates to an active energy ray-curable ink composition, containing an allylic polymer, a dispersant, and a pigment, the allylic polymer being produced by polymerizing an allylic compound represented by the following formula (I):
wherein R1 and R2 each represent H or CH3; X represents an a-valent group having an unsubstituted saturated or partially unsaturated four- to eight-membered cyclic backbone; and a represents 2 or 3.
Abstract:
The present invention provides an electroconductive adhesive which is desirably sintered at low temperatures even without pressurization during the sintering of the electroconductive adhesive, and which forms a sintered body that has high denseness and high mechanical strength (shear strength) if used as an electroconductive adhesive. An electroconductive adhesive which contains a solvent and silver particles that have an average particle diameter within the range of from 20 nm (inclusive) to 500 nm (exclusive), wherein the moisture content in the electroconductive adhesive is 1,300 ppm or less.