摘要:
An object of the present invention is to provide a composition for forming an environment friendly antifouling coating film that is unlikely to cause a hairline crack and like coating film defects even when immersed in seawater for a long time, and that prevents or inhibits attachment of slime. An antifouling coating composition of the invention comprises: (A) a triorganosilyl ester-containing copolymer obtained by a mixture of (a) a triorganosilyl (meth)acrylate monomer represented by a general formula (1): R1 is a hydrogen atom or a methyl, and R2, R3, and R4 are equal or different each other, and each represent an alkyl group having 3 to 6 carbons and branched on α-position or a phenyl group, and (b) an ethylenically unsaturated monomer copolymerizable with the triorganosilyl (meth)acrylate monomer, (B) a modified rosin salt which is a salt of a modified rosin and zinc and/or copper, the modified rosin containing, in an amount of 80 weight % or more, two or more members selected from the group consisting of dihydroabietic acid, tetrahydroabietic acid, dehydroabietic acid, pimaric acid, isopimaric acid, and dihydropimaric acid.
摘要翻译:本发明的目的是提供一种用于形成环境友好的防污涂膜的组合物,其即使长时间浸入海水中也不易引起发丝裂纹和类似的涂膜缺陷,并且防止或抑制粘附 。 本发明的防污涂料组合物包含:(A)通过(a)由通式(1)表示的(甲基)丙烯酸三有机甲硅烷酯单体的混合物获得的含三有机甲硅烷基酯的共聚物:R1是氢原子或甲基 R 2,R 3和R 4相同或不同,各自表示碳原子数为3〜6的烷基,在α-位或苯基上分支,(b)可与三有机甲硅烷基( 甲基)丙烯酸酯单体,(B)改性松香盐,其为改性松香和锌和/或铜的盐,所述改性松香含有80重量%以上的两种或更多种选自 由二氢松香酸,四氢松香酸,脱氢松香酸,海松酸,异海松酸和二氢海松酸组成。
摘要:
A gradient magnetic field power supply includes an amplifier for supplying current to a gradient coil. Between input and output of the amplifier is connected a feedback circuit which feeds a portion of an output current at the output back to the input and has a built-in phase compensating circuit for compensating the phase of the feedback current. The frequency response of the phase compensating circuit is made variable and adjusted to fit variations in the load impedance of the amplifier with time. This ensures optimum phase compensation.
摘要:
High-speed inference method and system for a production system represented by an expert system. A knowledge base comprised of a rule and a fact possessing a plurality of attributes is converted into machine language instructions executable by a processor to execute inference. The machine language instruction of the fact has the function of transferring a value of the fact to a specified location and the machine language instruction of the rule has the function of performing matching decision by referring to the specified location. The number of pattern matching operations can be decreased and the interpretation overhead can be reduced to ensure high-speed inference.
摘要:
A magnetic resonance imaging apparatus reconstructs proton image data and chemical shift image data of, for example, a phosphorous compound from first and second magnetic resonance signals obtained from the same position of an object under examination. Display/non-display region decisions are made for the chemical shift image data by referring to the proton image data. Of the chemical shift image data, data present in display regions are displayed together with the proton image data.
摘要:
A gradient magnetic field power supply includes an amplifier for supplying current to a gradient coil. Between input and output of the amplifier is connected a feedback circuit which feeds a portion of an output current at the output back to the input and has a built-in phase compensating circuit for compensating the phase of the feedback current. The frequency response of the phase compensating circuit is made variable and adjusted to fit variations in the load impedance of the amplifier with time. This ensures optimum phase compensation.
摘要:
In a method and a system for simulating a distributed system, a target system is divided into asynchronously operative processes so that the simulation of said asynchronously operative, distributed system may be comprehended with the changes in the data structures by using (1) a whole structure table indicating what certain of the said divided processes can provide for other processes, (2) a system structure table representing certain of said processes with a Petri net model, and (3) a data structure table storing the data structures of input and output processing data.
摘要:
An object of the present invention is to provide a composition for forming an environment friendly antifouling coating film that is unlikely to cause a hairline crack and like coating film defects even when immersed in seawater for a long time, and that prevents or inhibits attachment of slime. An antifouling coating composition of the invention comprises: (A) a triorganosilyl ester-containing copolymer obtained by a mixture of (a) a triorganosilyl (meth)acrylate monomer represented by a general formula (1): R1 is a hydrogen atom or a methyl, and R2, R3, and R4 are equal or different each other, and each represent an alkyl group having 3 to 6 carbons and branched on α-position or a phenyl group, and (b) an ethylenically unsaturated monomer copolymerizable with the triorganosilyl (meth)acrylate monomer, (B) a modified rosin salt which is a salt of a modified rosin and zinc and/or copper, the modified rosin containing, in an amount of 80 weight % or more, two or more members selected from the group consisting of dihydroabietic acid, tetrahydroabietic acid, dehydroabietic acid, pimaric acid, isopimaric acid, and dihydropimaric acid.
摘要翻译:本发明的目的是提供一种用于形成环境友好的防污涂膜的组合物,其即使长时间浸入海水中也不易引起发丝裂纹和类似的涂膜缺陷,并且防止或抑制粘附 。 本发明的防污涂料组合物包含:(A)通过(a)由通式(1)表示的(甲基)丙烯酸三有机甲硅烷酯单体的混合物获得的含三有机甲硅烷基酯的共聚物:R1是氢原子或甲基 R 2,R 3和R 4相同或不同,各自表示碳原子数为3〜6的烷基,在α-位或苯基上分支,(b)可与三有机甲硅烷基( 甲基)丙烯酸酯单体,(B)改性松香盐,其为改性松香和锌和/或铜的盐,所述改性松香含有80重量%以上的两种或更多种选自 由二氢松香酸,四氢松香酸,脱氢松香酸,海松酸,异海松酸和二氢海松酸组成。
摘要:
An object of the present invention is to provide a composition for forming an environment friendly antifouling coating film that can effectively exhibit an antifouling effect in seawater for a long period of time and furthermore exhibits a small temperature dependency of the coating film dissolving amount. The present invention provides an antifouling coating composition comprising: (A) a triorganosilyl ester-containing copolymer obtained by a mixture of (a) a triorganosilyl methacrylate monomer represented by a general formula (1) in which R1, R2, and R3 are equal or different each other, and each represent an alkyl group having 3 to 6 carbons and branched on α-position or a phenyl group, and (b) a methoxyalkyl methacrylate monomer represented by a general formula (2) in which R4 represents an alkylene group having 2 to 4 carbons, wherein a content ratio of the monomer (a) in the mixture is 45 to 65 weight %, and a total content of the monomer (a) and the monomer (b) in the mixture is 80 weight % or more, and a copper salt that is at least one member selected from the group consisting of rosin copper salts and copper salts of rosin derivatives.
摘要:
An object of the present invention is to provide a composition for forming an environment friendly antifouling coating film that can effectively exhibit an antifouling effect in seawater for a long period of time and furthermore exhibits a small temperature dependency of the coating film dissolving amount. The present invention provides an antifouling coating composition comprising: (A) a triorganosilyl ester-containing copolymer obtained by a mixture of (a) a triorganosilyl methacrylate monomer represented by a general formula (1) in which R1, R2, and R3 are equal or different each other, and each represent an alkyl group having 3 to 6 carbons and branched on α-position or a phenyl group, and (b) a methoxyalkyl methacrylate monomer represented by a general formula (2) in which R4 represents an alkylene group having 2 to 4 carbons, wherein a content ratio of the monomer (a) in the mixture is 45 to 65 weight %, and a total content of the monomer (a) and the monomer (b) in the mixture is 80 weight % or more, and a copper salt that is at least one member selected from the group consisting of rosin copper salts and copper salts of rosin derivatives.
摘要:
A gradient magnetic field power supply includes an amplifier for supplying current to a gradient coil. Between input and output of the amplifier is connected a feedback circuit which feeds a portion of an output current at the output back to the input and has a built-in phase compensating circuit for compensating the phase of the feedback current. The frequency response of the phase compensating circuit is made variable and adjusted to fit variations in the load impedance of the amplifier with time. This ensures optimum phase compensation.