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21. 发明授权

US4336342A Cost reduction of acid curing foundry binders with alkylated aromatic hydrocarbon solvents 失效
标题翻译：使用烷基化芳烃溶剂成本降低酸固化铸造粘结剂
公开(公告)号：US4336342A
公开(公告)日：1982-06-22
申请号：US244521
申请日：1981-03-16
申请人： William R. Dunnavant , Young D. Kim
发明人： William R. Dunnavant , Young D. Kim
IPC分类号： B22C1/22 , C08K5/01
CPC分类号： B22C1/224 , C08K5/01
摘要： Binder Compositions comprising a solution of furan foundry binders in an alkylated aromatic hydrocarbon solvent result in a more cost efficient binder. The cost efficiency is achieved without significant loss of physical properties of the foundry cores and molds which are formed using the binder. In instances the binder compositions of this invention exhibit improved physical properties.
摘要翻译：包含呋喃铸造粘合剂在烷基化芳烃溶剂中的溶液的粘结剂组合物导致更具成本效益的粘合剂。实现成本效率而不会使用粘合剂形成的铸造芯和模具的物理性能的显着损失。在本发明的粘合剂组合物中，表现出改进的物理性能。

22. 发明授权

US3993684A Monomeric compounds 失效
标题翻译：单体化合物
公开(公告)号：US3993684A
公开(公告)日：1976-11-23
申请号：US385483
申请日：1973-08-03
申请人： William R. Dunnavant , Edward M. Harris , Philip F. Kurz , Richard A. Markle , Edward H. Parker
发明人： William R. Dunnavant , Edward M. Harris , Philip F. Kurz , Richard A. Markle , Edward H. Parker
IPC分类号： C07C51/353 , C07C51/60 , C08F20/28 , G03F7/038 , C07C101/46
CPC分类号： G03F7/0388 , C07C51/353 , C07C51/60 , C08F20/28
摘要： Photosensitive homopolymers and substantially non-crosslinked copolymers containing the recurring unit: ##EQU1## R.sub.1 may be substituted or unsubstituted alkylene, aralkylene, alkoxyalkylene or aryloxyalkylene. R.sub.2 is a substituted or unsubstituted aryl group or heterocyclic group having aromatic character. R.sub.3, R.sub.4, and R.sub.5 are hydrogen, halogen or lower alkyl. R.sub.6 and R.sub.7 may be hydrogen, halogen, nitro, lower alkyl, phenyl, substituted phenyl, phenoxy and lower alkoxy. Lithographic plates bearing these photosensitive polymers can be stored without deterioration for extended periods prior to exposure, and produce highly abrasion resistant plates on being exposed. The photosensitive polymers of the invention are preferably produced by homopolymerization of novel monomers having the general formula ##EQU2## where R.sub.1 .sub.' is alkylene, haloalkylene, alkoxyalkylene, aminoalkylene, cycloalkylene, aralkylene, cycloalkylalkylene, cyanoalkylene, and aryloxyalkylene, and R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and R.sub.7 are as defined above; and by copolymerization of these monomers with one or more ethylenically unsaturated comonomers. Methods of preparing the photopolymers and the novel monomers are also disclosed, as are methods of preparing and exposing plates bearing the polymers.
摘要翻译：含有重复单元的光敏均聚物和基本上非交联的共聚物：R 5 R 3 || C -C- || O = CR 4 | O | R 1 | OR 6 R 7 || O = CC = C-R 2可以是取代或未取代的亚烷基，烷氧基亚烷基或芳氧基亚烷基。 R2是具有芳香性质的取代或未取代的芳基或杂环基。 R3，R4和R5是氢，卤素或低级烷基。 R 6和R 7可以是氢，卤素，硝基，低级烷基，苯基，取代的苯基，苯氧基和低级烷氧基。携带这些感光性聚合物的平版印刷版可以在曝光之前长时间保存而不变质，并在曝光时产生高耐磨性的板。本发明的光敏聚合物优选通过使具有通式R 5 R 3的新单体的均聚来制备，其中R1'为C = C | O = CR4 | O | R1'| OR6R7 || O = CC = 亚烷基，亚烷基，亚烷基，亚芳基，环烷基亚烷基，氰基亚烷基和芳氧基亚烷基，R2，R3，R4，R5，R6和R7如上定义; 并通过这些单体与一种或多种烯键式不饱和共聚单体的共聚合。还公开了制备光聚合物和新单体的方法，以及制备和暴露带有聚合物的板的方法。

23. 发明授权

US5516859A Polyurethane-forming no-bake foundry binder systems 失效
标题翻译：聚氨酯成型无烘烤铸造粘合剂体系
公开(公告)号：US5516859A
公开(公告)日：1996-05-14
申请号：US156573
申请日：1993-11-23
申请人： William R. Dunnavant , Ken K. Chang , Robert B. Fechter
发明人： William R. Dunnavant , Ken K. Chang , Robert B. Fechter
IPC分类号： B22C1/22 , C08G18/54 , C08G18/64 , C08L61/10 , C08L61/06
CPC分类号： C08G18/542 , B22C1/2273 , C08G18/64
摘要： This invention relates to polyurethane-forming foundry no-bake binder systems comprising a phenolic resin component and polyisocyanate component. The phenolic resin component comprises a blend of (a) polyphenol resin and (b) a phenolic resole resin. The binder systems have reduced phenol and free formaldehyde due to the presence of the polyphenol resin in the phenolic resin component. Foundry shapes are made by the no-bake process and are used in making ferrous and non ferrous metal castings.
摘要翻译：本发明涉及包含酚醛树脂组分和多异氰酸酯组分的聚氨酯形成铸造无烘烤粘合剂体系。酚醛树脂组分包括（a）多酚树脂和（b）酚醛树脂树脂的共混物。由于酚醛树脂组分中多酚树脂的存在，粘合剂体系具有还原酚和游离甲醛。铸造形状由无烘烤工艺制成，用于制造黑色金属和有色金属铸件。

24. 发明授权

US5447968A Polyurethane-forming binder systems containing 2,2'-dipyridyl, 1,10-phenanthroline, and their substituted alkyl derivatives 失效
标题翻译：含有2,2'-联吡啶，1,10-菲咯啉及其取代的烷基衍生物的聚氨酯形成粘合剂体系
公开(公告)号：US5447968A
公开(公告)日：1995-09-05
申请号：US95583
申请日：1993-07-23
申请人： Kenneth W. Barnett , William G. Carpenter , William R. Dunnavant , Robert B. Fechter
发明人： Kenneth W. Barnett , William G. Carpenter , William R. Dunnavant , Robert B. Fechter
IPC分类号： B22C1/22 , C08G18/20 , C08G18/54
CPC分类号： B22C1/2273
摘要： This invention relates to polyurethane-forming foundry binder systems which contain a nitrogen-containing aromatic compound selected from the group consisting of 2,2'-dipyridyl, 1,10-phenanthroline, and their substituted alkyl derivatives. The foundry binder systems are particularly useful for making foundry mixes used in the cold-box fabrication process for making foundry shapes. However, the binders systems can also be used to hold foundry shapes, such as molds and cores, together in an assembly.
摘要翻译：本发明涉及含有选自2,2'-联吡啶，1,10-菲咯啉及其取代的烷基衍生物的含氮芳族化合物的聚氨酯形成铸造粘合剂体系。铸造粘合剂系统特别适用于制造用于制造铸造形状的冷箱制造工艺中的铸造混合物。然而，粘结剂系统也可以用于将铸造形状（例如模具和芯）在一起组装在一起。

25. 发明授权

US5338774A Polyurethane-forming binder systems containing a polyphosphoryl chloride 失效
标题翻译：含聚磷酰氯的聚氨酯形成粘合剂体系
公开(公告)号：US5338774A
公开(公告)日：1994-08-16
申请号：US913577
申请日：1992-07-15
申请人： William R. Dunnavant , Robert B. Fechter
发明人： William R. Dunnavant , Robert B. Fechter
IPC分类号： B22C1/22 , C08G18/08 , C08G18/54 , C08K3/32 , C08K5/51 , B22C9/02
CPC分类号： C08G18/542 , B22C1/2273 , C08G18/089 , C08K3/32
摘要： Polyphosphoryl chlorides are used in polyurethane-forming foundry binder systems to extend the bench life of foundry mixes prepared by mixing the binder systems with sand. The foundry mixes are particularly useful for preparing molds and cores used for making metal castings.
摘要翻译：聚磷酰氯用于聚氨酯成型铸造粘合剂体系，以延长通过将粘合剂体系与砂混合制备的铸造混合物的使用寿命。铸造混合物对于制备用于制造金属铸件的模具和芯体特别有用。

26. 发明授权

US5376696A Foundry mixes based upon reclaimed sand 失效
标题翻译：基于回收砂的铸造混合物
公开(公告)号：US5376696A
公开(公告)日：1994-12-27
申请号：US2431
申请日：1993-01-08
申请人： William R. Dunnavant , Kenneth W. Barnett , Gary R. Hysell
发明人： William R. Dunnavant , Kenneth W. Barnett , Gary R. Hysell
IPC分类号： B22C1/22 , C08K5/10 , C08K9/04 , C08K3/34
CPC分类号： C08K5/10 , B22C1/2253 , C08K9/04
摘要： The subject invention relates to foundry mixes comprised of (a) an aqueous basic solution of a phenolic resole resin; (b) a major amount of reclaimed sand which has first been treated with an aqueous non halogenated surfactant solution, and (c) a liquid ester co-reactant.The invention also relates to foundry shapes made with the subject foundry mixes which have improved tensile strengths and scratch hardness when compared to foundry shapes which are prepared from foundry binder systems which do not utilize foundry aggregates which have been mixed with an aqueous surfactant solution.
摘要翻译：本发明涉及由（a）酚醛树脂树脂的碱性水溶液组成的铸造混合物; （b）主要量的已经用非卤化表面活性剂水溶液处理的再生砂，和（c）液体酯共反应物。本发明还涉及使用本发明的铸造混合物制造的铸造形状，其与通过不使用已经与表面活性剂水溶液混合的铸造骨料的铸造粘合剂体系制备的铸造形状相比具有改善的拉伸强度和刮擦硬度。

27. 发明授权

US4946876A Polyurethane-forming foundry binders containing a polyester polyol 失效
标题翻译：含聚酯多元醇的聚氨酯成型铸造粘合剂
公开(公告)号：US4946876A
公开(公告)日：1990-08-07
申请号：US264649
申请日：1988-10-31
申请人： William G. Carpenter , William R. Dunnavant
发明人： William G. Carpenter , William R. Dunnavant
IPC分类号： B22C1/22 , C08G18/40 , C08G18/54
CPC分类号： C08G18/542 , B22C1/2273 , C08G18/4027
摘要： Certain polyester polyols are used in polyurethane-forming binders to improve the shakeout of molds and cores, made by a cold-box process, used to make low melting metal castings.
摘要翻译：某些聚酯多元醇用于聚氨酯形成粘合剂，以改善用于制造低熔点金属铸件的冷箱方法制造的模具和芯的振荡。

28. 发明授权

US4766949A Hot box process for preparing foundry shapes 失效
标题翻译：热箱过程准备铸造形状
公开(公告)号：US4766949A
公开(公告)日：1988-08-30
申请号：US48097
申请日：1987-05-08
申请人： Satish S. Jhaveri , William R. Dunnavant , James T. Schneider
发明人： Satish S. Jhaveri , William R. Dunnavant , James T. Schneider
IPC分类号： B22C1/22
CPC分类号： B22C1/2253
摘要： The subject invention relates to a hot box process for forming foundry shapes. The foundry shapes are formed with a mixture of an aggregate and certain aqueous basic solutions of phenolic resole resins which act as binders. The use of these binders results in foundry shapes which are cured by heating at elevated temperatures without requiring an acid-generating curing catalyst.
摘要翻译：本发明涉及一种用于形成铸造形状的热箱工艺。铸造形状由作为粘合剂的酚醛树脂树脂的聚集体和某些碱性水溶液的混合物形成。这些粘合剂的使用导致铸造形状，其通过在升高的温度下加热而固化，而不需要产生酸的固化催化剂。

29. 发明授权

US4758400A Thermosetting molding compounds 失效
标题翻译：热固性模塑料
公开(公告)号：US4758400A
公开(公告)日：1988-07-19
申请号：US6866
申请日：1987-01-27
申请人： William R. Dunnavant , Gilbert M. Gynn , Richard E. Field
发明人： William R. Dunnavant , Gilbert M. Gynn , Richard E. Field
IPC分类号： C08J5/24 , B29C43/02
CPC分类号： C08J5/24 , C08J2333/14 , C08J2367/06
摘要： Fiber reinforced molding compounds wherein the resinous matrix is a thermosetting linear polymer characterized in constituting two oligomeric ethylenically unsaturated polyester segments joined through a polyurethane residue and having acryloyl or methacryloyl end groups.
摘要翻译：纤维增强模塑料，其中树脂基质是热固性线性聚合物，其特征在于构成通过聚氨酯残基连接并具有丙烯酰基或甲基丙烯酰端基的两个低聚烯属不饱和聚酯链段。

30. 发明授权

US4374229A Thermosetting resinous molding compositions 失效
标题翻译：热固性树脂成型组合物
公开(公告)号：US4374229A
公开(公告)日：1983-02-15
申请号：US320282
申请日：1981-11-12
申请人： William R. Dunnavant , Richard E. Field , Dan Borgnaes
发明人： William R. Dunnavant , Richard E. Field , Dan Borgnaes
IPC分类号： C08F299/00 , C08F290/00 , C08F299/06 , C08G18/00 , C08G18/67 , C08G18/68 , C08L75/06
CPC分类号： C08G18/68 , C08F299/065 , C08G18/672 , C08G2120/00 , Y10S525/92
摘要： A thermosetting resinous composition characterized in constituting at least two oligomeric polyester segments terminally joined through a polyurethane residue and having end groups containing polymerizable unsaturation. Further disclosed are the thermoset products obtained by the addition polymerization of the aforesaid compositions in the presence or absence of a copolymerizable monomeric crosslinking agent. The resultant thermoset products are particularly useful in preparing molded articles.
摘要翻译：一种热固性树脂组合物，其特征在于构成至少两个通过聚氨酯残余物末端连接且具有可聚合不饱和基团的端基的低聚聚酯链段。还公开了通过在存在或不存在可共聚的单体交联剂的情况下通过上述组合物的加成聚合获得的热固性产物。得到的热固性产品在制备模塑制品中特别有用。

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