公开(公告)号：US5529749A

公开(公告)日：1996-06-25

申请号：US353243

申请日：1994-12-02

Applicant: Helmut Rinno ,  Friedrich Hessel ,  Klaus Alberti

Inventor： Helmut Rinno ,  Friedrich Hessel ,  Klaus Alberti

IPC: A61L2/12 ,  B29B13/08 ,  C08J3/28 ,  C07B63/00

CPC classification number: B29B13/08 ,  A61L2/12

Abstract: A process is disclosed for reducing the microbe count in microbially-contaminated aqueous multi-phase composition containing synthetic resin, such as polymer dispersions and formulations that contain polymeric binders. The process uses dielectric heating, preferably immediately before transfer of the multi-phase composition to containers.

Abstract translation: 公开了一种降低微生物污染的含多种合成树脂的含水多相组合物，如聚合物分散体和含有聚合物粘合剂的制剂的微生物计数的方法。 该方法使用电介质加热，优选在将多相组合物转移到容器之前。

公开(公告)号：US5190689A

公开(公告)日：1993-03-02

申请号：US746219

申请日：1991-08-16

Applicant: Heino Finkelmann ,  Friedrich Hessel ,  Rudolf Eidenschink ,  Joachim Krause

Inventor： Heino Finkelmann ,  Friedrich Hessel ,  Rudolf Eidenschink ,  Joachim Krause

IPC: C09K19/38

CPC classification number: C09K19/3833

Abstract: The invention concerns polymer materials exhibiting liquid-crystalline phases which contain laterally bonded mesogenic groups and processes for the preparation of the polymer materials comprising the polymerization and/or grafting of suitable monomers. The polymer materials according to the invention are used as substrates in the electronics industry for fiber and film technology, for modulating laser beams, and for optical data storage.

Abstract translation: 本发明涉及显示液晶相的聚合物材料，其包含侧向键合的介晶基团以及用于制备包含合适单体的聚合和/或接枝的聚合物材料的方法。 根据本发明的聚合物材料用作电子工业中用于光纤和薄膜技术的基底，用于调制激光束和用于光学数据存储。

公开(公告)号：US5473008A

公开(公告)日：1995-12-05

申请号：US245534

申请日：1994-05-18

Applicant: Friedrich Hessel ,  Katharina Seitz ,  Andreas Roosen ,  Gerhard Wegner ,  Wolfgang Meyer ,  Wolfgang Sigmund

Inventor： Friedrich Hessel ,  Katharina Seitz ,  Andreas Roosen ,  Gerhard Wegner ,  Wolfgang Meyer ,  Wolfgang Sigmund

IPC: C04B35/00 ,  C04B35/10 ,  C04B35/634 ,  C08K5/10 ,  C08L33/06 ,  B32B18/00 ,  C08K3/10

CPC classification number: C04B35/63416 ,  C04B35/63404 ,  Y10T428/252 ,  Y10T428/264

Abstract: The invention relates to a casting composition comprising a ceramic powder, an organic solvent, binder, plasticizer and a dispersant, which composition is suitable for producing green ceramic sheets by the tape casting process. The dispersant present in the casting composition of the invention is a polyvinyl alcohol/fatty acid ester having a degree of conversion in the range from 50 to 100%. The invention also relates to the use of such a casting composition for producing ceramic green sheets and a process for producing ceramic substrates using a green sheet thus produced.

Abstract translation: 本发明涉及一种包含陶瓷粉末，有机溶剂，粘合剂，增塑剂和分散剂的铸塑组合物，该组合物适用于通过带铸法生产生坯陶瓷片。 存在于本发明的铸塑组合物中的分散剂是转化率为50〜100％的聚乙烯醇/脂肪酸酯。 本发明还涉及这种用于生产陶瓷生片的铸塑组合物的使用以及使用这样生产的生片制造陶瓷衬底的方法。

公开(公告)号：US5401697A

公开(公告)日：1995-03-28

申请号：US117790

申请日：1993-09-08

Applicant: Hans-Michael Guether ,  Katharina Seitz ,  Friedrich Hessel ,  Frank Schroeder ,  Christine Koestler ,  Andreas Roosen

Inventor： Hans-Michael Guether ,  Katharina Seitz ,  Friedrich Hessel ,  Frank Schroeder ,  Christine Koestler ,  Andreas Roosen

IPC: C04B35/628 ,  B01J2/28 ,  C01B21/072 ,  C04B35/581 ,  C04B35/626 ,  C04B35/632 ,  C04B35/58

CPC classification number: C04B35/581 ,  B01J2/28 ,  C01B21/0728

Abstract: A method of processing water-sensitive ceramic powders, particularly carbothermically produced aluminum nitride, whereby the ceramic powder is deagglomerated in a dry milling step with addition of an alkylamine which is liquid at room temperature is disclosed. The alkylamine is added in an amount sufficient to produce a monomolecular layer on the surface of the ceramic powder. The deagglomerated powder subsequently is vigorously stirred with a concentrated aqueous solution or dispersion of binder and rapidly and gently dried, preferably by freeze drying. Aluminum nitride powder prepared by this process can be further processed into shaped parts with a high thermal conductivity.

Abstract translation: 公开了一种加工水敏陶瓷粉末，特别是碳热还原氮化铝的方法，其中陶瓷粉末在干法研磨步骤中被分散，同时加入室温下为液体的烷基胺。 以足以在陶瓷粉末的表面上产生单分子层的量加入烷基胺。 随后用浓缩的粘合剂水溶液或分散体剧烈搅拌解散粉末，并快速并轻轻地干燥，优选通过冷冻干燥。 通过该方法制备的氮化铝粉末可以进一步加工成具有高导热性的成形部件。

公开(公告)号：US5656219A

公开(公告)日：1997-08-12

申请号：US531699

申请日：1995-09-21

Applicant: Gunter Riedel ,  Hartmut Kruner ,  Cornelia Boberski ,  Friedrich Hessel ,  Wolfgang Bocker ,  Jurgen Heinrich ,  Matthias Steiner ,  Petra Dotsch ,  Ottmar Rosenfelder

Inventor： Gunter Riedel ,  Hartmut Kruner ,  Cornelia Boberski ,  Friedrich Hessel ,  Wolfgang Bocker ,  Jurgen Heinrich ,  Matthias Steiner ,  Petra Dotsch ,  Ottmar Rosenfelder

IPC: C04B35/584 ,  C04B35/58 ,  C04B35/593 ,  C04B35/64 ,  C04B35/645 ,  F01L3/02 ,  B28B1/26 ,  B28B1/24 ,  C04B33/32

CPC classification number: C04B35/5935

Abstract: In the process for producing a homogeneous and finely crystalline silicon nitride ceramic, ceramic powder is milled, mixed with shaping aids, the mixture is shaped into parts and the shaped parts are subsequently sintered in a nitrogen atmosphere. According to the invention, sintering is carried out in a multistage process at temperatures T.sub.max in the range from 1700.degree. to 1900.degree. C. using gas pressures in the range from 0.3 to 50 MPa. In a first temperature stage, a temperature from 0.9 to 0.96.multidot.T.sub.max is maintained over a time period from 10 to 50 minutes at an N.sub.2 pressure from 0.2 to 1.2 MPa, while in a second temperature stage a temperature from 0.97 to 0.985.multidot.T.sub.max is maintained over a time period from 20 to 80 minutes at an N.sub.2 pressure from 3 to 6 MPa. Then the temperature is increased to T.sub.max and the pressure is increased to from 7 to 50 MPa.

Abstract translation: 在制造均匀且细微结晶的氮化硅陶瓷的方法中，将陶瓷粉末研磨，与成形助剂混合，将混合物成形为零件，然后将成形部件在氮气气氛中烧结。 根据本发明，使用0.3〜50MPa范围内的气体压力，在1700〜1900℃的温度Tmax下，在多级工序中进行烧结。 在第一温度阶段，在0.2至1.2MPa的N 2压力下，在10至50分钟的时间段内保持0.9至0.96xTmax的温度，而在第二温度阶段，将0.97至0.985×Tmax的温度保持在 在N2压力为3〜6MPa的时间内为20〜80分钟。 然后将温度升高至Tmax，将压力提高至7MPa至50MPa。

公开(公告)号：US5643996A

公开(公告)日：1997-07-01

申请号：US617429

申请日：1996-03-18

Applicant: Jurgen Rudolph ,  Wolfgang Meyer ,  Gerhard Wegner ,  Friedrich Hessel ,  Katharina Seitz ,  Andreas Roosen

Inventor： Jurgen Rudolph ,  Wolfgang Meyer ,  Gerhard Wegner ,  Friedrich Hessel ,  Katharina Seitz ,  Andreas Roosen

IPC: C08K3/00 ,  C04B35/111 ,  C04B35/478 ,  C04B35/581 ,  C04B35/634 ,  C08L53/00 ,  C08K3/22

CPC classification number: C04B35/478 ,  C04B35/111 ,  C04B35/581 ,  C04B35/63424 ,  C08L53/00

Abstract: A composition of inorganic powders comprises inorganic powder, dispersant and binder. The dispersant and/or binder used is a block copolymer of the units methacrylic acid and alkyl methacrylate in which the alkyl radical can comprise from 1 to 8 carbon atoms. The individual blocks of alkyl methacrylate possess an average molecular weight of at least 4000 and the total block copolymer has an average molecular weight of up to 150,000, in each case expressed as number average (M.sub.n).

Abstract translation: 无机粉末的组合物包括无机粉末，分散剂和粘合剂。 使用的分散剂和/或粘合剂是甲基丙烯酸和甲基丙烯酸烷基酯单元的嵌段共聚物，其中烷基可包含1至8个碳原子。 甲基丙烯酸烷基酯的各个嵌段具有至少4000的平均分子量，并且总嵌段共聚物的平均分子量高达150,000，在每种情况下表示为数均（Mn）。

公开(公告)号：US5498382A

公开(公告)日：1996-03-12

申请号：US117830

申请日：1993-09-08

Applicant: Katherina Seitz ,  Hans-Michael Guther ,  Friedrich Hessel ,  Frank Schroder ,  Christine Kostler ,  Andreas Roosen ,  Christian May

Inventor： Katherina Seitz ,  Hans-Michael Guther ,  Friedrich Hessel ,  Frank Schroder ,  Christine Kostler ,  Andreas Roosen ,  Christian May

IPC: C04B35/628 ,  B01J2/28 ,  C01B21/072 ,  C04B35/581 ,  C04B35/626 ,  C04B35/622 ,  B29B9/00

CPC classification number: B82Y30/00 ,  B01J2/28 ,  C01B21/0728 ,  C04B35/581

Abstract: A water sensitive ceramic powder, in particular aluminum nitride, is provided with a hydrophobic coating. The coated powder is dispersed in water with addition of a binder and a nonionic surfactant from the group comprising ethylene oxide adducts with an HLB value of from 10 to 14. Subsequently the aqueous slip is converted into a free flowing granulated powder. The nonionic surfactant, which is added in an amount sufficient to give a monomolecular layer, makes possible a good dispersion of the hydrophobically coated powder in water.

Abstract translation: 水敏感陶瓷粉末，特别是氮化铝，具有疏水涂层。 将涂覆的粉末从HLB值为10至14的环氧乙烷加合物的组中加入粘合剂和非离子表面活性剂分散在水中。随后将水滑石转化成自由流动的造粒粉末。 以足以产生单分子层的量添加的非离子表面活性剂使疏水涂覆的粉末在水中的良好分散成为可能。