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公开(公告)号：US20140287247A1
公开(公告)日：2014-09-25
申请号：US14349625
申请日：2012-10-05
发明人： Matt D. Dowland , Daesup Hyun , John J. Kennan , Kent R. Larson , Randall G. Schmidt , Shengqing Xu
CPC分类号： C08J3/203 , C08G77/12 , C08G77/20 , C08K5/0025 , C08K5/0091 , C08K5/56 , C08L83/04 , H01L2924/0002 , Y10T428/31663 , H01L2924/00
摘要： A gel having improved thermal stability is the hydro silylation reaction product of (A) an organopolysiloxane having an average of at least 0.1 silicon-bonded alkenyl group per molecule and (B) a cross-linker having an average of at least 2 silicon-bonded hydrogen atoms per molecule. (A) and (B) react via hydrosilylation in the presence of (C) a hydrosilylation catalyst and (D) a heated reaction product of iron acetylacetonate. The iron acetylacetonate is present prior to heating in an amount of from about 0.05 to about 30 weight percent based on a total weight of (A) and (B). The gel is formed using a method that includes the steps of (I) heating the iron acetylacetonate to form the (D) heated reaction product of the iron acetylacetonate and (II) combining (A), (B), (C) and (D) to effect the hydrosilylation reaction of (A) and (B) in the presence of (C) and (D) to form the gel.
摘要翻译： 具有改善的热稳定性的凝胶是（A）每分子平均具有至少0.1个硅键合的烯基的有机聚硅氧烷的氢化甲硅烷基化反应产物和（B）具有平均至少2个硅键合的交联剂 氢原子每分子。 在（C）氢化硅烷化催化剂和（D）加热的乙酰丙酮铁反应产物的存在下，（A）和（B）通过氢化硅烷化反应。 乙酰丙酮铁在加热前以（A）和（B）的总重量计约0.05至约30重量％的量存在。 使用包括以下步骤的方法形成凝胶：（I）加热乙酰丙酮铁以形成（D）加热的乙酰丙酮铁反应产物和（II）组合（A），（B），（C）和（ D）在（C）和（D）的存在下进行（A）和（B）的氢化硅烷化反应以形成凝胶。
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公开(公告)号：US20180127552A1
公开(公告)日：2018-05-10
申请号：US15861179
申请日：2018-01-03
发明人： Matt D. Dowland , Daesup Hyun , John J. Kennan , Kent R. Larson , Randall G. Schmidt , Shengqing Xu
CPC分类号： C08J3/075 , C08G77/12 , C08G77/14 , C08G77/20 , C08G2220/00 , C08J3/203 , C08J2383/06 , C08L83/04 , C08K5/56 , C08L83/00
摘要： A gel having improved thermal stability is the hydrosilylation reaction product of (A) an organopolysiloxane having an average of at least 0.1 silicon-bonded alkenyl group per molecule and (B) a cross-linker having an average of at least 2 silicon-bonded hydrogen atoms per molecule. (A) and (B) react via hydrosilylation in the presence of (C) a hydrosilylation catalyst and (D) a heated reaction product of iron acetylacetonate. The iron acetylacetonate is present prior to heating in an amount of from about 0.05 to about 30 weight percent based on a total weight of (A) and (B). The gel is formed using a method that includes the steps of (I) heating the iron acetylacetonate to form the (D) heated reaction product of the iron acetylacetonate and (II) combining (A), (B), (C) and (D) to effect the hydrosilylation reaction of (A) and (B) in the presence of (C) and (D) to form the gel.
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公开(公告)号：US20140291872A1
公开(公告)日：2014-10-02
申请号：US14349383
申请日：2012-10-05
发明人： Brian R. Harkness , Malinda N. Howell , Daesup Hyun , Jing Jiang , John J. Kennan , Kent R. Larson , Randall G. Schmidt , Shengqing Xu
CPC分类号： C08G77/38 , C08G77/12 , C08G77/20 , C08J3/28 , C08K5/56 , C08L83/04 , H01L23/24 , H01L23/296 , H01L23/3171 , H01L2924/0002 , H01L2924/00
摘要： A gel has improved thermal stability and is the ultraviolet hydrosilylation reaction product of (A) an organopolysiloxane having an average of at least 0.1 silicon-bonded alkenyl group per molecule and (B) a cross-linker having an average of at least 2 silicon-bonded hydrogen atoms per molecule. (A) and (B) react via hydrosilylation in the presence of (C) a UV-activated hydrosilylation catalyst comprising at least one of platinum, rhodium, ruthenium, palladium, osmium, and iridium, and (D) a thermal stabilizer. The (D) thermal stabilizer is present in an amount of from about 0.01 to about 30 weight percent based on a total weight of (A) and (B) and having transparency to UV light sufficient for the ultraviolet hydrosilylation reaction product to form.
摘要翻译： 凝胶具有改善的热稳定性，并且是（A）每分子平均具有至少0.1个硅键合的烯基的有机聚硅氧烷的紫外线氢化硅烷化反应产物，（B）平均具有至少2个硅键的链烯基的交联剂， 每个分子键合的氢原子。 （A）和（B）在（C）包含铂，铑，钌，钯，锇和铱中的至少一种的UV活化的氢化硅烷化催化剂存在下，通过氢化硅烷化反应，和（D）热稳定剂。 基于（A）和（B）的总重量，（D）热稳定剂的存在量为约0.01至约30重量％，并且对于形成紫外线氢化硅烷化反应产物的UV光具有透明度。
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