会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 24. 发明专利
    • AMINE RESIDUE-CONTAINING POLYSILAZANE AND ITS PRODUCTION
    • JPH1160736A
    • 1999-03-05
    • JP22742097
    • 1997-08-08
    • TONEN CORP
    • SHIMIZU YASUOAOKI TOMOKOFUNAYAMA TORU
    • C08G77/54C08G77/62
    • PROBLEM TO BE SOLVED: To produce the subject polymer capable of being baked at low temperatures under a low steam partial pressure and forming a high-density silica thin film by baking and useful as an interlayer insulating film of semiconductors by including a specific silazane structure in a molecular chain and restricting the molecular weight within a specified range. SOLUTION: This amine residue-containing polysilazane has 100-100,000 number-average molecular weight and contains a structure represented by formula I [R and R are each H, a hydrocarbon group or a hydrocarbon group- containing silyl; A is a bivalent hydrocarbon group; B is (B1 ) an N-hydrocarbon group-substituted amine residue or (B2 ) a cyclic amine residue; (p) is 1 when B is B1 and 0 or 1 when B is B2 ] or formula II [B is (B 1 ) a bivalent chain amine residue or (B 2) a bivalent cyclic amine residue; (p) and (q) are each 1 when B is B 1 and 0 or 1 when B is B 2 ] in the molecular chain. The polymer is obtained by reacting a polysilazane containing a structure represented by formula III (R is R and at least one of R and R is H) with a compound represented by formula IV or V in an inert organic solvent without any active hydrogen.
    • 30. 发明专利
    • SILICON-CONTAINING COPOLYMER AND ITS PRODUCTION
    • JPH09188765A
    • 1997-07-22
    • JP35406995
    • 1995-12-29
    • TONEN CORP
    • TASHIRO YUJI
    • C08G77/62C08G77/48
    • PROBLEM TO BE SOLVED: To obtain the above polymer having a specific average molecular weight, comprising a specific structural unit, excellent in heat resistance, flexibility and mechanical characteristics, capable of readily producing and useful for heat-resistant coating, coating for heat-resistant electric wires, etc. SOLUTION: This silicon-containing copolymer has 500-1000000 number- average molecular weight and contains at least structural units of formula I [R and R are each a (cyclo)alkyl, an alkenyl, an aryl, an aralkyl, an alkylamino or an alkylsilyl; (p) is a molar ratio], formula II [R is a divalent aromatic group; (q) is a molar ratio], formula III [R to R are each R ; R is R ; (r) is a molar ratio], formula IV [R is R; (s) is a molar ratio] and formula V [(t) is a molar ratio] and the structural units of formula I to formula V are random and (p), (q), (r), (s) and (t) satisfy relationships of the formula (p+s)/(q+t)=0.01-99 and the formula (p+s)/(r)=0.01 to 99.