摘要:
A water-soluble vinyl polymer is produced by polymerizing a water-soluble vinyl monomer in the presence of a catalyst or under the action of ultraviolet rays to prepare a polymer having a degree of polymerization of at least 95%, adjusting the water content of the system containing said polymer to be within the range of from 15 to 30%, and irradiating said system with ionizing radiation.
摘要:
A uniform cation exchange membrane having a certain fluorovinyl sulfonic acid monomer grafted onto a certain high-molecular substrate film which exhibits small electrical resistance and great physical strength is herein disclosed.
摘要:
A separator membrane for use in secondary alkali batteries having a non-ion selective hydrophilic group and ion exchange group said membrane having an electrical resistance which, when said membrane is heated in 12NaOH for 30 minutes at a temperature between about 20.degree. and 100.degree. C., varies from the initial value for 20.degree. C. by an amount between 10% and about 24% and the process thereof are herein disclosed.
摘要:
A separator membrane for use in secondary alkali batteries having a non-ion selective hydrophilic group and ion exchange group said membrane having an electrical resistance which, when said membrane is heated in 12NaOH for 30 minutes at a temperature between about 20.degree. and 100.degree. C., varies from the initial value for 20.degree. C. by an amount between 10% and about 24% and the process thereof are herein disclosed.
摘要:
A process is, herein, disclosed for electrolysis or pure water in an electrolytic cell which is divided into an anode compartment and a cathode compartment by a cation exchange membrane and in which pure water is supplied to the anode compartment for electrolysis to generate oxygen in the anode compartment and hydrogen in the cathode compartment, said cation exchange membrane being produced by grafting a fluorovinyl sulfonic acid monomer onto a membranous polymeric substrate having a monomer unit of the formula: ##STR1## (wherein X is hydrogen, fluorine or CH.sub.3 ; and Y is hydrogen or fluorine), said cation exchange membrane being used in close contact with an anode and a cathode.
摘要:
A uranium adsorbing material made of a graft polymer with a graft ratio of 20 to 100% which contains amidoxime groups and cation exchange groups in a molar ratio of 1:1 to 20:1 and a process for preparing said material are herein disclosed.
摘要:
A process for producing a medical material having high anti-thrombogenicity that is suitable for use in catheters and other medical devices in contact with blood flowing in circulatory organs and other tissues is disclosed. According to this process, an acrylamide or methacrylamide derivative having a tertiary amino group, or an unsaturated monomer having a hydrophihlic group and the ability to promote copolymerization, or a mixture thereof is graft polymerized onto a polyurethane elastomeric or polyolefinic high-molecular weight substrate with an ionizing radiation.
摘要:
An article packaging body is formed from a sheet of hard material so as to comprise an article containing plate part having a plurality of containing recesses for containing articles, a cover plate part connected with the article containing plate part, and a gripping piece forming plate part formed by extending from the article containing plate part and/or the cover plate part via a folding line. A plurality of gripping pieces is formed in the gripping piece forming plate part so as to be separable individually and to hold an article at the tip end of each of the gripping pieces. The gripping piece forming plate part is folded onto the article containing plate part such that the articles are placed in the respective containing recesses, and the cover plate part is openably closed so as to sandwich the gripping piece forming plate part between the cover plate part and the article containing plate part.
摘要:
A process for producing a filter membrane capable of simultaneous removal of metallic ions and nonionic materials from process water used in electronics industry, medical field, pharmaceutical industry and nuclear power generation.The membrane is produced by introducing iminodiacetic acid groups to a porous membrane made from polyolefin or a copolymer of an olefin and a halogenated olefin by uv or ionizing radiation initiated graft polymerization.
摘要:
An article packaging body including an article containing plate which has a plurality of recesses configured to receive articles. A cover plate connected to the article containing plate, and a gripping plate extending from either one of the article containing plate and the cover plate. Additionally, the gripping plate may be provided with a plurality of grips configured to hold corresponding articles at a distal end, the grips configured to be individually separable from each other. Further, the gripping plate is configured to be folded onto the article containing plate such that the articles are received in corresponding recesses.