摘要:
To provide a photocurable fluorinated polymer composition which has a high curing rate, shows little shrinkage before and after photocuring and requires no post treatment such as heat treatment after photocuring and whereby it is possible to obtain a cured resin excellent in heat resistance and weather resistance. According to the photocurable fluorinated polymer composition comprising a fluorinated polymer (A) containing polymerized units derived from a fluoroolefin and polymerized units derived from an unsaturated monomer having an oxetanyl group or a substituted oxetanyl group, and a photoreaction initiator (B), of the present invention, it is possible to provide a photocurable fluorinated polymer composition which has a high curing rate, shows little shrinkage before and after photocuring and requires no post treatment such as heat treatment after photocuring and whereby it is possible to obtain a cured resin excellent in heat resistance and weather resistance.
摘要:
A fluorine-containing copolymer characterized by comprising tetrafluoroethylene, vinyl fluoride or vinyl chloride and a polymerizable compound other than the above, and a vulcanizable composition comprising the fluorine-containing copolymer, a vulcanizing agent, an acid-receiving agent and a vulcanization accelerator.
摘要:
Perfluoroelastomers characterized by low molecular weight and freedom from color-forming impurities can be prepared by pyrolysis techniques, and are useful in pellicle coatings and other optical applications.
摘要:
Provided is a method for producing a fluoropolymer in the presence of a specific non-fluorinated compound having surface activity. The method shows a high polymerization rate, and suppresses formation of sticking polymerization materials after production of a polymer product. The method includes aqueous dispersion polymerization of a fluoroolefin in the presence of a compound (1) represented by formula (1):
wherein R 1 and R 2 are the same as or different from each other, and each represent a C4 to C12 non-fluorinated saturated hydrocarbon group; and M is an alkali metal, an ammonium salt, or an amine salt.
摘要:
To provide a fluorine-containing copolymer having functional group which contains a hydrocarbon vinyl ether unit having functional group and a tetrafluoroethylene unit, has a fluorine content of not less than 10 % by weight, is insoluble in tetrahydrofuran substantially, is excellent in adhesion to a substrate and makes it possible to carry out crosslinking easily.
摘要:
To provide a fluorine-containing copolymer having functional group which contains a hydrocarbon vinyl ether unit having functional group and a tetrafluoroethylene unit, has a fluorine content of not less than 10 % by weight, is insoluble in tetrahydrofuran substantially, is excellent in adhesion to a substrate and makes it possible to carry out crosslinking easily.
摘要:
A fluorine-containing copolymer comprising (a) 20 to 80% by mole of the structural unit of the formula: wherein X is CI or F, (b) 80 to 20% by mole of the structural unit of the formula: wherein R 1 is an alkylene or alicyclic group, M is an alkali metal or a -NHR 2 R 3 R 4 group in which R 2 , R 3 and R 4 are the same or different and each is H or an alkyl or hydroxyalkyl group, and n is an integer of 2 to 6, (c) 0 to 40% by mole of the structural unit of the formula: wherein R 5 is an alkyl, alicyclic or fluoroalkyl group, and k is zero or 1, and (d) 0 to 40% by mole of the structural unit of the formula: wherein n is as defined above, the copolymer being soluble or dispersible in water without using emulsifiers, being capable of crosslinking in the presence of a curing agent and being useful as materials of water-based paints.
摘要翻译:一种含氟共聚物,其包含(a)20〜80摩尔%的式-CFX-CF 2的结构单元,其中X为Cl或F,(b)为80〜20摩尔% 式:其中R 1是亚烷基或脂环族基团,M是碱金属或-NHR 2 R 3 R 4基团,其中R 2,R 3和 R 4相同或不同,分别为H或烷基或羟烷基,n为2〜6的整数,(c)0〜40摩尔%的下式结构单元: 其中R 5为烷基,脂环族或氟代烷基,且k为0或1,和(d)0至40摩尔%的结构单元:其中n如上所定义, 共聚物在不使用乳化剂的情况下可溶于或分散于水中,能够在固化剂存在下进行交联,并且可用作水性涂料的材料。