Publication number: 20140084499
Abstract: The present disclosure is directed toward solutions, transparent films prepared from aromatic copolyamides, and a display element, an optical element or an illumination element using the solutions and/or the films. The copolyamides, which contain pendant carboxylic groups are solution cast into films using cresol, xylene, N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), dimethylsulfoxide (DMSO), or butyl cellosolve or other solvents or mixed solvent which has more than two solvents. When the films are thermally cured at temperatures near the copolymer glass transition temperature, after curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant.
Type:
Application
Filed:
September 24, 2013
Publication date:
March 27, 2014
Applicants:
Akron Polymer Systems, Inc., Sumitomo Bakelite Co., Ltd.
Inventors:
Frank W. HARRIS, Dong Zhang, Limin Sun, Jiaokai Jing, Toshimasa Eguchi, Hideo Umeda, Ritsuya Kawasaki, Toshihiko Katayama, Yusuke Inoue, Jun Okada, Fumihiro Maeda, Mizuho Inoue, Manabu Naito
Publication number: 20140083624
Abstract: The present disclosure is directed toward solutions, transparent films prepared from aromatic copolyamides, and a display element, an optical element or an illumination element using the solutions and/or the films. The copolyamides, which contain pendant carboxylic groups are solution cast into films using cresol, xylene, N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), dimethylsulfoxide (DMSO), or butyl cellosolve or other solvents or mixed solvent which has more than two solvents. When the films are thermally cured at temperatures near the copolymer glass transition temperature, after curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant.
Type:
Application
Filed:
September 24, 2013
Publication date:
March 27, 2014
Applicants:
Akron Polymer Systems, Inc., Sumitomo Bakelite Co., Ltd.
Inventors:
Frank W. Harris, Dong Zhang, Limin Sun, Jiaokai Jing, Toshimasa Eguchi, Hideo Umeda, Ritsuya Kawasaki, Toshihiko Katayama, Yusuke Inoue, Jun Okada, Fumihiro Maeda, Mizuho Inoue, Manabu Naito
Publication number: 20140011952
Abstract: An RTV anti-pollution flashover coating, and preparation method, includes components of the following weight parts: polydimethylsiloxane 100 parts, a reinforcing filler 4 to 10 parts, a catalyst 0.1 to 1 part, a crosslinking agent 1 to 5 parts, a hydrophobic agent 3 to 6 parts, a pigment 1 to 2 parts, decabromodiphenyl ether 1 to 2 parts, and toluene 30 to 40 parts. The hydrophobic agent is a mixture of a substance having a structure represented by Formula I and any one or more of a low-molecular weight silicone oil, dihydroxydiphenyl silane, fluorine-containing silicone oil and white oil. In Formula I, R is any one of acetoxy CH3COO—, methoxy CH3O—, ketoximo MeEtCNO—, an amide group AcMeN—, amino C6H11NH— and acetonyl H2C?CMeO; R1—Si is a polysiloxane group or a fluorine-containing siloxane group, and has a structural formula represented by Formula II, where n=1 to 4, and R2 is CH3— or CF3—.
Type:
Application
Filed:
September 9, 2013
Publication date:
January 9, 2014
Applicants:
Shanxi Jincheng Power Supply Company, State Grid Corporation of China, Wuhan University, Taiyuan Zhongtianxing Electric Power Technology Co. Ltd.
Inventors:
Shengming Wang, Ronghua Huang, Dong Zhang, Xiaohong Yan, Xinliang Kang, Guangxu Jiao, Minying Yu, Xinbao Li, Wei Xiu, Jing Liang, Jianguo Ma, Leilei Chang