摘要:
A film selectively permeable to carbon dioxide gas which includes chitosan having a degree of deacetylation of 70 mol % or higher and in which the ratio of the carbon dioxide gas transmission (CO2TR) to the oxygen gas transmission (O2TR), (CO2TR/O2TR), is 15 or higher and a food packaging film made from such a film. The films are insoluble in water, are highly safe from the standpoint of food hygiene, and have such selective gas permeability that the ratio of carbon dioxide gas transmission to oxygen gas transmission is high, which can be economically obtained.
摘要:
The invention provides a polyvinylidene fluoride resin (PVDF) film in which a crystal structure determined from an absorbance by an infrared absorption spectrum is such that a proportion of a β-type crystal is 10% or more based on the sum total of an α-type crystal and the β-type crystal, further preferably a film whose tensile modulus in TD at 120° C. is 90 MPa or less, or a film in which a ratio of its tensile modulus in TD at a temperature of 100° C. to its tensile modulus in TD at a temperature of 23° C. is 4% or less, in particular an extruded film, a backsheet for solar cell module, which comprises the film, and a production process of the film, which comprises quenching a PVDF sheet-shaped material melt-extruded at 5 to 70° C. and preferably then subjecting the quenched material to a heat treatment.
摘要:
A biaxially oriented poly(arylene sulfide) resin film formed from a resin composition including a syndiotactic polystyrene resin by a ratio of from 0.1 to 30 parts by mass with respect to 100 parts by mass of a poly(arylene sulfide) resin, which has a center line average roughness Ra in the range of from 0.01 to 0.09 μm and a maximum height Rmax of 1.0 μm or less, a static friction coefficient of 1.00 or less and a kinetic friction coefficient of 0.70 or less, and a process for the production of the same.
摘要:
In a plurality of rooms, hubs are installed to build a star-shaped LAN, and tone-generation-related devices, such as a keyboard, tone generator device and speaker, are connected to the respective hubs. For example, in an internal network, the keyboard is logically connected to an input side of the tone generator device and a speaker is connected to an output side of the tone generator device, so as to build a tone generation system. The tone-generation-related devices are provided with respective network adaptors so that they can be readily connected to the LAN. Communication is carried out between the tone-generation-related devices, using a communication protocol intended for retransmission control. Each of the tone-generation-related devices is in the form of a processor device, which executes a program corresponding to a function of a desired processing element to thereby implement the desired processing element. Once a given tone-generation-related device, implementing a plurality of processing elements, is connected to the network, an internal connection between the processing elements is canceled.
摘要:
A laminate having a laminated structure of at least two layers includes a gas barrier film (A) formed from a mixture containing at least one poly(meth)acrylic acid polymer selected from the group consisting of poly(meth)acrylic acid and partially neutralized products thereof and a saccharide in a weight ratio of 95:5 to 20:80, and having an oxygen permeability constant of 5.00.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity, and a layer (B) formed from a thermoplastic resin. The film (A) and the layer (B) are laminated contiguously to each other. A process for the production of a laminate having a laminated structure of at least two layers comprises a step of forming a gas barrier film (A) having an oxygen permeability constant of 5.00.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% RH, wherein a solution containing at least one poly(meth)acrylic acid polymer selected from the group consisting of poly(meth)acrylic acid and partially neutralized products thereof and a saccharide in a weight ratio of 95:5 to 20:80 is coated on a layer (B) formed from a thermoplastic resin, the solution coated is dried to form a film, and the film is then subjected to a heat treatment at a temperature of at least 100.degree. C. (373K). The film (A) and the layer (B) are contiguous to each other.
摘要:
A composite deposited film including (A) a polymeric film substrate; (B) a deposit of an inorganic material formed on at least one side of the polymeric film substrate (A); and (C) a water-resistant film laminated on the deposit (B) and formed from a mixture containing a polycarboxylic acid or a partially neutralized product thereof and a saccharide in a weight ratio of 95:5 to 20:80 is provided. A production process of a composite deposited film, which includes the steps of forming a deposit (B) of an inorganic material on at least one side of a polymeric film substrate (A); casting a solution of a mixture containing a polycarboxylic acid or a partially neutralized product thereof and a saccharide in a weight ratio of 95:5 to 20:80 on the deposit (B); drying the mixture to form a film; and then subjecting the resultant dry film to a heat treatment at a temperature not lower than 100.degree. C. (373 K), thereby forming a water-resistant film (C) on the deposit (B), is also provided.
摘要:
A gas barrier laminate having a laminated structure of at least two layers includes a gas barrier film (A) formed from a mixture containing polyvinyl alcohol and poly(meth)acrylic acid or a partially neutralized product thereof in a weight ratio ranging from 95:5 to 10:90, and having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity, and a layer (B) formed from a thermoplastic resin. The film (A) and layer (B) are laminated contiguously to each other. A process for the production of a gas barrier laminate having a laminated structure of at least two layers comprises a step of forming a gas barrier film (A) having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity, wherein a solution containing polyvinyl alcohol and poly(meth)acrylic acid or a partially neutralized product thereof in a weight ratio ranging from 95:5 to 10:90 is cast on a layer (B) formed from a thermoplastic resin, the solution cast is dried to form a film, and the dry film is then subjected to a heat treatment at a temperature of at least 100.degree. C. (373 K). The gas barrier film (A) and the layer (B) are contiguous to each other.
摘要翻译:具有至少两层的叠层结构的阻气性层叠体包括由含有聚乙烯醇和聚(甲基)丙烯酸的混合物或其部分中和物形成的阻气膜(A),其重量比为95:5 至10:90,并且在30℃和80%相对湿度的条件下测量的氧气渗透常数为1.25×10 -3 ml(STP)×cm / m 2×h×(t Pa)或更小,形成层(B) 来自热塑性树脂。 膜(A)和层(B)彼此相邻地层叠。 制备具有至少两层的叠层结构的阻气性层压体的方法包括形成氧气渗透常数为1.25×10 -3 ml(STP)×cm / m 2×h×(Pa)的阻气膜(A)的工序 }或更小,在30℃和80%相对湿度的条件下测量,其中包含聚乙烯醇和聚(甲基)丙烯酸或其部分中和产物的溶液的重量比为95:5至10:90 浇铸在由热塑性树脂形成的层(B)上,将溶液流延干燥以形成膜,然后在至少100℃(373K)的温度下对干膜进行热处理。 阻气膜(A)和层(B)彼此邻接。
摘要:
Disclosed herein is a gas barrier film formed from a mixture containing polyvinyl alcohol and poly(meth)acrylic acid at a weight ratio of 95:5 to 20:80, and having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).cm/m.sup.2.h.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity. A production process of the gas barrier film, in which a film formed from a mixture containing polyvinyl alcohol and poly(meth)acrylic acid is subjected to a heat treatment under specific conditions, is also disclosed. The gas barrier film of the invention are far excellent in gas barrier property under high-humidity conditions and also superb in water resistance.
摘要翻译:本发明公开了一种阻气膜,其由含有聚乙烯醇和聚(甲基)丙烯酸的混合物形成,重量比为95:5至20:80,氧透过常数为1.25×10 -3 ml(STP)。 cm / m2.h.atm {Pa}或更小,在30℃和80%相对湿度的条件下测量。 还公开了在含有聚乙烯醇和聚(甲基)丙烯酸的混合物中形成的膜在特定条件下进行热处理的阻气膜的制造方法。 本发明的阻气膜在高湿度条件下的阻气性优异,耐水性也优异。
摘要:
A gas barrier film, comprising a mixture-deposited layer made of a metal and a metal oxide, provided on at least one surface of a polymer film substrate, and characterized in that, where the integration values of the XPS spectrums of the metal and the metal oxide of the above mixture-deposited layer are defined as SMe and SMeO, respectively, the value of the integration value ratio (SMeO/SMe) in the above mixture-deposited layer is 1.5 to 100, and that a resin layer formed using a polycarboxylate-based solution is laminated on at least one surface of the mixture-deposited layer.
摘要:
An image forming apparatus includes a movable image bearing member, a charger means including a charge member for electrically charging the image bearing member with electroconductive particles between the charge member and the image bearing member and a developing member for developing a latent image with toner mixed with electroconductive particles. The latent image is formed on the image bearing member having been charged by the charging means, and a toner image provided by development of the latent image by the developing member is transferred onto a recording material. The electroconductive particles mixed in the toner is carried by the image bearing member and are fed to between the charge member and the image bearing member. The width A, measured in a direction perpendicular to a moving direction of the image bearing member, in which the electroconductive particle are present between the charge member and the image bearing member, a width B in which the developing means is capable of effecting development, and a recording width C of a maximum size recording material, satisfy: A>B≧C.