公开(公告)号：US5455000A

公开(公告)日：1995-10-03

申请号：US270131

申请日：1994-07-01

申请人： Dietmar Seyferth ,  Pawel Czubarow

发明人： Dietmar Seyferth ,  Pawel Czubarow

IPC分类号： B22F7/04 ,  C04B41/45 ,  C04B41/52 ,  C04B41/81 ,  C04B41/89

CPC分类号： C04B41/009 ,  B22F7/04 ,  C04B41/4554 ,  C04B41/52 ,  C04B41/81 ,  C04B41/89 ,  C04B2111/00405

摘要： The invention provides a method for in-situ powder metallurgy processing of a functionally gradient material (FGM) which uses a preceramic polymer binder system with the metal and/or ceramic powders used to produce the intermediate layers of the composite. The invention also provides a method for controlling shrinkage of the functionally gradient material during processing while still preserving the desired density of the intermediate layers by controlling the preceramic polymer binder content within the functionally gradient material.

摘要翻译： 本发明提供了一种功能梯度材料（FGM）的原位粉末冶金处理方法，该方法使用预陶瓷聚合物粘合剂体系与用于制备复合材料的中间层的金属和/或陶瓷粉末。 本发明还提供了一种控制功能梯度材料在加工过程中的收缩的方法，同时通过控制功能梯度材料内的陶瓷前体聚合物粘合剂含量来保持中间层的所需密度。

公开(公告)号：US5070116A

公开(公告)日：1991-12-03

申请号：US652468

申请日：1991-02-07

申请人： Dietmar Seyferth ,  Christine A. Sobon ,  Jutta Borm

发明人： Dietmar Seyferth ,  Christine A. Sobon ,  Jutta Borm

IPC分类号： C04B35/571 ,  C04B41/45 ,  C04B41/81 ,  C08G77/398 ,  C08G77/58 ,  C08G77/60 ,  C08G77/62

CPC分类号： C04B41/009 ,  C04B35/571 ,  C04B41/4554 ,  C04B41/81 ,  C08G77/398 ,  C08G77/58 ,  C08G77/60 ,  C08G77/62

摘要： Organosilicon-metal polymers are prepared by mixing an organosilicon polymer containing a multiplicity of Si-H and/or Si-Si functional groups with a sufficient quantity of a metal carbonyl for the metal carbonyl to be incorporated into the organosilicon polymer. These polymers can be used to prepare ceramics.

摘要翻译： 通过将含有多个Si-H和/或Si-Si官能团的有机硅聚合物与足够量的用于金属羰基的金属羰基混合以引入有机硅聚合物中来制备有机硅 - 金属聚合物。 这些聚合物可用于制备陶瓷。

公开(公告)号：US4820783A

公开(公告)日：1989-04-11

申请号：US915134

申请日：1986-10-03

申请人： Dietmar Seyferth ,  Timothy G. Wood ,  Yuan-Fu Yu

发明人： Dietmar Seyferth ,  Timothy G. Wood ,  Yuan-Fu Yu

IPC分类号： C01B31/36 ,  C01B21/068 ,  C04B35/571 ,  C04B35/591 ,  C08G77/00 ,  C08G77/02 ,  C08G77/48 ,  C08G77/60 ,  C08L83/16 ,  D01F9/10 ,  C08F283/00

CPC分类号： C08L83/16 ,  C08G77/60

摘要： A method of forming preceramic polymers using a organopolysilane of the formula [(RSiH).sub.x (RSi).sub.y ].sub.n, where R is a lower alkyl group having from 1 to about 6 carbon atoms, a lower alkenyl group having from 2 to about 6 carbon atoms, a substituted or unsubstituted lower aryl group having from 6 to about 10 carbons atoms, a tri(lower)alkyl- or di(lower)alkylsilyl group and n is an integer greater than 1, and reacting it with alkali metal amides or silylamides in catalytic quantities is disclosed. Preferably, the alkali metal amide is a polymeric alkali metal silylamide of the formula [(R.sup.1 SiHNH).sub.a (R.sup.1 SiN).sub.b (R.sup.1 SiHNM).sub.c ].sub.m where a+b+c=I; R.sup.1 is a lower alkyl group having from 1 to about 6 carbon atoms, a substituted or unsubstituted alkenyl group having from 2 to about 6 carbon atoms, a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms, a tri(lower)alkyl- or di(lower)alkylsilyl group or a di(lower)alkylamino group; M is an alkali metal or one-half equivalent of an alkaline earth metal; and n and m are integers greater than I. Novel preceramic polymers formed by this method are also disclosed.

摘要翻译： 使用式[（RSiH）x（RSi）y] n的有机聚硅烷形成预陶瓷聚合物的方法，其中R是具有1至约6个碳原子的低级烷基，具有2至约6个碳原子的低级烯基 碳原子，具有6至约10个碳原子的取代或未取代的低级芳基，三（低级）烷基 - 或二（低级）烷基甲硅烷基，n是大于1的整数，并与碱金属酰胺反应或 公开了催化量的甲硅烷基酰胺。 优选地，碱金属酰胺是式[（R1SiHNH）a（R1SiN）b（R1SiHNM）c] m的聚合碱金属甲硅烷基酰胺，其中a + b + c = 1; R1是具有1至约6个碳原子的低级烷基，具有2至约6个碳原子的取代或未取代的烯基，取代或未取代的具有6至约10个碳原子的低级芳基，三（低级 ）烷基或二（低级）烷基甲硅烷基或二（低级）烷基氨基; M是一种碱金属或一半当量的碱土金属; 并且n和m是大于1的整数。还公开了通过该方法形成的新型前陶瓷聚合物。

公开(公告)号：US4767876A

公开(公告)日：1988-08-30

申请号：US916109

申请日：1986-10-07

申请人： Dietmar Seyferth ,  Joanne M. Schwark ,  Yuan-Fu Yu

发明人： Dietmar Seyferth ,  Joanne M. Schwark ,  Yuan-Fu Yu

IPC分类号： C08G77/60 ,  C08L83/16 ,  C07F7/08 ,  C07F7/10

CPC分类号： C08G77/60 ,  C08L83/16

摘要： A method of forming preceramic polymers using an organosilicon polymer containing Si--H repeat units by reacting it with alkali metal amide or silylamide is disclosed. Preferably, the silylamide is a polymeric silylamide formed by reacting in solution anhydrous ammonia with a mixture of R.sup.1 SiHX.sub.2 (where R.sup.1 is a lower alkyl group having from 1 to about 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having from 3 to about 6 carbon atoms, a substituted or unsubstituted lower alkenyl group having from 2 to about 6 carbon atoms or a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms; and X is a halogen) and R.sup.2 SiX.sub.3 (where R.sup.2 is H, a lower alkenyl group having from 1 to about 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having from 3 to about 6 carbon atoms, a substituted or unsubstituted lower alkenyl group having from 2 to about 6 carbon atoms or a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms). The Si--H containing organosilicon polymer is preferably selected from the group consisting of organopolysilanes of the formula [(RSiH).sub.x (RSi).sub.y ].sub.n (where R is a lower alkyl group having from 1 to about 6 carbon atoms, a lower alkenyl group having from 2 to about 6 carbon atoms, or a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms, and n is greater than 1), a polycarbosilane having repeat units of the formula [R.sup.a Si(H)--(CH.sub.2).sub.q ] (where R.sup.a is H, a lower alkyl group having from 1 to about 6 carbon atoms, a cycloalkyl group having from 3 to about 6 carbon atoms, or a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms, q is an integer 1 or greater), and a polysiloxane having repeat units of the formula [R.sup.b Si(H)O].sub.n (where R.sup.b is a lower alkyl group having from 1 to about 6 carbon atoms, a cycloalkyl group having from 3 to about 6 carbon atoms, or a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms, and n is an integer greater than 1).Novel preceramic polymers formed by this method are also disclosed.

公开(公告)号：US4645807A

公开(公告)日：1987-02-24

申请号：US756353

申请日：1985-07-18

申请人： Dietmar Seyferth ,  Timothy G. Wood ,  Yuan-Fu Yu

发明人： Dietmar Seyferth ,  Timothy G. Wood ,  Yuan-Fu Yu

IPC分类号： C01B31/36 ,  C01B21/068 ,  C04B35/571 ,  C04B35/591 ,  C08G77/00 ,  C08G77/02 ,  C08G77/48 ,  C08G77/60 ,  C08L83/16 ,  D01F9/10 ,  C08F283/00

CPC分类号： C08L83/16 ,  C08G77/60

摘要： A method of forming preceramic polymers using a organopolysilane of the formula [(RSiH).sub.x (RSi).sub.y ].sub.n, where R is a lower alkyl group having from 1 to about 6 carbon atoms, a lower alkenyl group having from 2 to about 6 carbon atoms, a substituted or unsubstituted lower aryl group having from 6 to about 10 carbons atoms, a tri(lower)alkyl- or di(lower)alkylsilyl group and n is an integer greater than 1, and reacting it with alkali metal amides or silylamides in catalytic quantities is disclosed. Preferably, the alkali metal amide is a polymeric alkali metal silylamide of the formula [(R.sup.1 SiHNH).sub.a (R.sup.1 SiN).sub.b (R.sup.1 SiHNM).sub.c ].sub.m where a+b+c=1; R.sup.1 is a lower alkyl group having from 1 to about 6 carbon atoms, a substituted or unsubstituted alkenyl group having from 2 to about 6 carbon atoms, a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms, a tri(lower)alkyl- or di(lower)alkylsilyl group or a di(lower)alkylamino group; M is an alkali metal or one-half equivalent of an alkaline earth metal; and n and m are integers greater than 1. Novel preceramic polymers formed by this method are also disclosed.

摘要翻译： 使用式[（RSiH）x（RSi）y] n的有机聚硅烷形成预陶瓷聚合物的方法，其中R是具有1至约6个碳原子的低级烷基，具有2至约6个碳原子的低级烯基 碳原子，具有6至约10个碳原子的取代或未取代的低级芳基，三（低级）烷基 - 或二（低级）烷基甲硅烷基，n是大于1的整数，并与碱金属酰胺反应或 公开了催化量的甲硅烷基酰胺。 优选地，碱金属酰胺是式[（R1SiHNH）a（R1SiN）b（R1SiHNM）c] m的聚合碱金属甲硅烷基酰胺，其中a + b + c = 1; R1是具有1至约6个碳原子的低级烷基，具有2至约6个碳原子的取代或未取代的烯基，取代或未取代的具有6至约10个碳原子的低级芳基，三（低级 ）烷基或二（低级）烷基甲硅烷基或二（低级）烷基氨基; M是一种碱金属或一半当量的碱土金属; 并且n和m是大于1的整数。还公开了通过该方法形成的新型陶瓷前体聚合物。

公开(公告)号：US4639501A

公开(公告)日：1987-01-27

申请号：US772375

申请日：1985-09-04

申请人： Dietmar Seyferth ,  Yuan-Fu Yu

发明人： Dietmar Seyferth ,  Yuan-Fu Yu

IPC分类号： D01F9/10 ,  C01B21/082 ,  C01B31/36 ,  C04B35/571 ,  C08G77/00 ,  C08G77/02 ,  C08G77/48 ,  C08G77/60 ,  C08L83/16 ,  D01F9/14 ,  G03F7/075 ,  C08G77/06

CPC分类号： C08G77/60 ,  C08L83/16 ,  G03F7/0757

摘要： A method of forming preceramic polymers by mixing (A) a methylpolysilane of the formula [(RSiH).sub.x (RSi).sub.y ].sub.n, (where R is a lower alkyl group having from 1 to about 6 carbon atoms, a cycloalkyl group having from 3 about to 6 carbon atoms, a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms, a tri(lower)alkyl- or di(lower)alkylsilyl group x+y=1, (x and y are each >0 and also x=l, y=o), and n is an integer greater than 1 with (B) an organic or organisilicon compound having at least two alkenyl groups and allowing the mixture to react is disclosed. Preferably, the alkenyl group is a vinyl group. The reaction is preferably initiated by the generation of reactive free radicals. Novel preceramic polymers formed by this method are also disclosed.

摘要翻译： 通过混合（A）式[（RSiH）x（RSi）y] n（其中R是具有1至约6个碳原子的低级烷基，具有1至约6个碳原子的低级烷基）的甲基聚硅烷，形成陶瓷前体聚合物的方法， 3至6个碳原子，取代或未取代的具有6至约10个碳原子的低级芳基，三（低级）烷基或二（低级）烷基甲硅烷基x + y = 1，（x和y各自> 0，x = 1，y = o），n为大于1的整数，（B）具有至少两个烯基并且允许混合物反应的有机或有机硅化合物，优选地，烯基是 乙烯基，反应优选通过产生反应性自由基引发。还公开了通过该方法形成的新型前陶瓷聚合物。

公开(公告)号：US5969073A

公开(公告)日：1999-10-19

申请号：US814273

申请日：1997-04-10

申请人： Dietmar Seyferth ,  Ralf Wyrwa

发明人： Dietmar Seyferth ,  Ralf Wyrwa

IPC分类号： C07F17/00 ,  C08F4/659 ,  C08F4/6592 ,  C08F4/76 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F110/14 ,  C08F210/14 ,  C08F210/16 ,  C08G77/398 ,  C08G77/60 ,  C08G83/00 ,  C08G79/00

CPC分类号： C08G83/003 ,  C07F17/00 ,  C08F10/00 ,  C08G77/398 ,  C08G77/60 ,  C08F110/02 ,  C08F110/06 ,  C08F110/14 ,  C08F210/14 ,  C08F210/16 ,  C08F4/65908 ,  C08F4/6592

摘要： Group 4 metal-containing organosilicon dendrimers are described. Also described are methods for synthesizing the dendrimers. The dendrimers can be useful in several applications including as olefin polymerization and copolymerization catalysts and as silane polymerization catalysts.

摘要翻译： 描述了含有4族金属的有机硅树枝状大分子。 还描述了合成树枝状大分子的方法。 树枝状聚合物可用于多种应用，包括作为烯烃聚合和共聚催化剂以及作为硅烷聚合催化剂。

公开(公告)号：US5171736A

公开(公告)日：1992-12-15

申请号：US421586

申请日：1989-10-16

申请人： Dietmar Seyferth ,  Herbert Plenio

发明人： Dietmar Seyferth ,  Herbert Plenio

IPC分类号： C04B35/571 ,  C04B35/589 ,  C08G77/48 ,  C08G77/60 ,  C08G77/62 ,  C08G79/00 ,  C08G79/08 ,  C08L83/16

CPC分类号： C08G77/60 ,  C04B35/589 ,  C08G79/00 ,  C08L83/16

摘要： Preceramic polymers are prepared by mixing an organosilicon oligomer or polymer containing a multiplicity of Si--H and/or Si--N functional groups with a borane in an organic solvent for a sufficient time for the reactants to react, wherein the molar ratio of the organosilicon polymer repeat unit to borane is 15 or less.

公开(公告)号：US4720532A

公开(公告)日：1988-01-19

申请号：US899471

申请日：1986-08-22

申请人： Dietmar Seyferth ,  Joanne M. Schwark

发明人： Dietmar Seyferth ,  Joanne M. Schwark

IPC分类号： C04B35/571 ,  C04B35/589 ,  C08G77/48 ,  C08G77/62 ,  C08G77/04

CPC分类号： C08G77/62 ,  C04B35/571 ,  C04B35/589

摘要： A method for preparing preceramic polymers is disclosed. This method includes the steps of(1) reacting in solution anhydrous ammonia with a mixture of R.sup.1 SiHX.sub.2 (where R.sup.1 is a lower alkyl group having from 1 to about 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having from 3 to about 6 carbon atoms, a substituted or unsubstituted lower alkenyl group having from 2 to about 6 carbon atoms, or a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms, and X is a halogen) and RSiX.sub.3 (where R is H, a lower alkyl group having from 1 to about 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having from 3 to about 6 carbon atoms, a substituted or unsubstituted lower alkenyl group having from 2 to about 6 carbon atoms, or a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms), thereby forming a mixture of precursor polymers; and reacting the precursor polymers in the presence of a basic catalyst capable of deprotonating the NH functions in the precursor polymers to form the preceramic polymer. Preferably, this preceramic polymer is treated with an electrophile compound. Pyrolyzing the polymer in an inert gas stream or ammonia atmosphere to form a ceramic material is also disclosed.

摘要翻译： 公开了一种制备预陶瓷聚合物的方法。 该方法包括以下步骤：（1）使无水氨溶液与R1SiHX2（其中R1是具有1至约6个碳原子的低级烷基，具有3至约6个碳原子的取代或未取代的环烷基） ，具有2至约6个碳原子的取代或未取代的低级烯基，或具有6至约10个碳原子的取代或未取代的低级芳基，X为卤素）和RSiX 3（其中R为H，较低级 具有1至约6个碳原子的烷基，取代或未取代的具有3至约6个碳原子的环烷基，取代或未取代的具有2至约6个碳原子的低级烯基，或取代或未取代的低级芳基 具有6至约10个碳原子），从而形成前体聚合物的混合物; 以及在能够使前体聚合物中的NH官能团去质子化的碱性催化剂存在下使前体聚合物反应以形成预陶瓷聚合物。 优选地，该前陶瓷聚合物用亲电子试剂化合物处理。 还公开了在惰性气体流或氨气氛中热解聚合物以形成陶瓷材料。

公开(公告)号：US4650837A

公开(公告)日：1987-03-17

申请号：US781934

申请日：1985-09-30

申请人： Dietmar Seyferth ,  Yuan-Fu Yu

发明人： Dietmar Seyferth ,  Yuan-Fu Yu

IPC分类号： C08G77/60 ,  C08L83/16 ,  C08F283/00

CPC分类号： C08G77/60 ,  C08L83/16

摘要： A method of forming preceramic polymers using a polycarbosilane having repeat units of the formula [RSi(H)--(CH.sub.2).sub.q ] (where R is H, a lower alkyl group having from 1 to about 6 carbon atoms, a cycloalkyl group having from 3 to about 6 carbon atoms, a substituted or unsubstituted lower aryl group having from 6 to about 10 carbons atoms, q is an integer 1 or greater), by reacting it with alkali metal silylamides in a weight ratio of polycarbosilane:silylamide of 10:1 or less is disclosed. Preferably, the alkali metal silylamide is a polymeric alkali metal silylamide of the formula [(R.sup.1 SiHNH).sub.a (R.sup.1 SiN).sub.b (R.sup.1 SiHNM).sub.c ].sub.m where a+b+c=1; R.sup.1 is a lower alkyl group having from 1 to about 6 carbon atoms, a substituted or unsubstituted alkenyl group having from 2 to about 6 carbon atoms, a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms, a tri(lower)alkyl- or di(lower)alkylsilyl group or a di(lower)alkylamino group; M is an alkali metal or one-half equivalent of an alkaline earth metal; and n and m are integers greater than 1. Novel preceramic polymers formed by this method are also disclosed.

摘要翻译： 使用具有式[RSi（H） - （CH 2）q]（其中R是H，具有1至约6个碳原子的低级烷基）的重复单元的聚碳硅烷形成预陶瓷聚合物的方法， 3至约6个碳原子，取代或未取代的具有6至约10个碳原子的低级芳基，q为整数1或更大），通过与聚碳硅烷：甲硅烷基酰胺的重量比为10:1的碱金属甲硅烷基酰胺反应， 1以下。 优选地，碱金属甲硅烷基酰胺是式[（R1SiHNH）a（R1SiN）b（R1SiHNM）c] m的聚合碱金属甲硅烷基酰胺，其中a + b + c = 1; R1是具有1至约6个碳原子的低级烷基，具有2至约6个碳原子的取代或未取代的烯基，取代或未取代的具有6至约10个碳原子的低级芳基，三（低级 ）烷基或二（低级）烷基甲硅烷基或二（低级）烷基氨基; M是一种碱金属或一半当量的碱土金属; 并且n和m是大于1的整数。还公开了通过该方法形成的新型陶瓷前体聚合物。