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11. 发明授权

US06686402B2 Cold-box foundry binder systems 有权
标题翻译：冷箱铸造粘合剂系统
公开(公告)号：US06686402B2
公开(公告)日：2004-02-03
申请号：US09964963
申请日：2001-09-27
申请人： Wayne D. Woodson , H. Randall Shriver
发明人： Wayne D. Woodson , H. Randall Shriver
IPC分类号： B22C122
CPC分类号： B22C1/22 , B22C1/222
摘要： This invention relates to foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy novolac resin; (b) preferably a bisphenol F; (c) an acrylate; and (d) an effective amount of a free radical initiator. The foundry binder systems are used for making foundry mixes. The foundry mixes are used to make foundry shapes (such as cores and molds) which are used to make metal castings.
摘要翻译：本发明涉及在二氧化硫和自由基引发剂存在下固化的铸造粘合剂体系，其包括（a）环氧酚醛树脂; （b）优选双酚F; （c）丙烯酸酯; 和（d）有效量的自由基引发剂。铸造粘合剂系统用于制造铸造混合物。铸造混合物用于制造用于制造金属铸件的铸造形状（例如芯和模具）。

12. 发明授权

US4481310A Furfuryl esters and resins 失效
标题翻译：糠酯和树脂
公开(公告)号：US4481310A
公开(公告)日：1984-11-06
申请号：US503081
申请日：1983-06-14
申请人： Wayne D. Woodson
发明人： Wayne D. Woodson
IPC分类号： B22C1/22 , C07D307/42 , C08K5/1535 , C08F32/06
CPC分类号： C07D307/42 , B22C1/2233 , C08K5/15 , C08K5/1535
摘要： Acid-curable, condensation-type resins, particularly phenolic resin prepolymers and urea-formaldehyde and/or furfuryl alcohol-formaldehyde modified phenolic resin prepolymers, have improved properties when admixed with a dibasic acid di-ester of the compositionR.sup.1 O.sub.2 C(CH.sub.2).sub.n CO.sub.2 R.sup.2where n is from 1 to 8, R.sup.1 is furfuryl, and R.sup.2 is furfuryl or methyl. The di-esters are preferably added in the amount of 5-35%, by weight of total composition. These compositions are particularly useful in the preparation of sand cores and molds for foundry use which have improved strength and hardness.The dibasic acid di-esters of the compositionR.sup.1 O.sub.2 C(CH.sub.2).sub.n CO.sub.2 R.sup.2where n is from 1 to 8, R.sup.1 is furfuryl, and R.sup.2 is furfuryl or methyl are not reported in the literature and are novel compounds. These di-esters are oily liquids having high boiling points and are particulary useful as resin modifiers, diluents and plasticizers. These di-esters are produced by the sodium-catalyzed transesterification reaction of furfuryl alcohol with the liquid dimethyl esters of the C.sub.3 -C.sub.10 linear aliphatic dibasic acids at temperatures of about 214.degree.-240.degree. F.
摘要翻译：可酸固化的缩合型树脂，特别是酚醛树脂预聚物和脲 - 甲醛和/或糠醇 - 甲醛改性酚醛树脂预聚物在与组合物R 1 O 2 C（CH 2）n CO 2 R 2的二元酸二酯混合时具有改进的性能，其中 n为1至8，R1为糠基，R2为糠基或甲基。二酯的加入量优选为总组合物重量的5-35％。这些组合物特别可用于制备具有改进的强度和硬度的铸造用砂芯和模具。组成为R 1 O 2 C（CH 2）n CO 2 R 2的二元酸二酯，其中n为1至8，R 1为糠基，R 2为糠基或甲基，在文献中未见报道，为新化合物。这些二酯是具有高沸点的油性液体，并且特别用作树脂改性剂，稀释剂和增塑剂。这些二酯通过糠醇与C3-C10直链脂肪族二元酸的液体二甲基酯在约214°-240°F的温度下的钠催化酯交换反应产生。

13. 发明授权

US06684936B2 Erosion-resistant cold-box foundry binder systems 有权
标题翻译：耐腐蚀冷箱铸造粘合剂系统
公开(公告)号：US06684936B2
公开(公告)日：2004-02-03
申请号：US10120203
申请日：2002-04-10
申请人： Wayne D. Woodson , James J. Archibald , H. Randall Shriver
发明人： Wayne D. Woodson , James J. Archibald , H. Randall Shriver
IPC分类号： B22C122
CPC分类号： B22C1/167 , B22C1/222 , B22C9/123
摘要： This invention relates to erosion resistant foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy resin; (b) a multifunctonal acrylate; (c) a phenolic resin that is soluble in (a) and (b); and (d) an effective amount of a free radical initiator. The foundry binder systems are used for making foundry mixes. The foundry mixes are used to make foundry shapes (such as cores and molds) which are used to make metal castings.
摘要翻译：本发明涉及耐腐蚀铸造粘合剂体系，其在二氧化硫和自由基引发剂存在下固化，其包含（a）环氧树脂; （b）多酯丙烯酸酯; （c）可溶于（a）和（b）的酚醛树脂; 和（d）有效量的自由基引发剂。铸造粘合剂系统用于制造铸造混合物。铸造混合物用于制造用于制造金属铸件的铸造形状（例如芯和模具）。

14. 发明授权

US4806576A Curable epoxy resin compositions and use in preparing formed, shaped, filled bodies 失效
标题翻译：可固化的环氧树脂组合物和用于制备形成的，成形的填充体
公开(公告)号：US4806576A
公开(公告)日：1989-02-21
申请号：US95802
申请日：1987-09-11
申请人： Wayne D. Woodson
发明人： Wayne D. Woodson
IPC分类号： B22C1/22 , C08G59/18 , C08G59/40 , C08L63/00 , C08K3/36 , B22C9/00 , C08L63/02
CPC分类号： C08G59/40 , B22C1/2206 , B22C1/222 , B22C1/224 , B22C1/2246 , B22C1/226 , C08G59/18 , C08L63/00
摘要： Curable epoxy resin compositions are described which comprise a mixture of an acid curable epoxy resin and a minor amount of an oxidizing agent capable of reacting with sulfur dioxide to form a catalyst for curing said epoxy resin. The curable epoxy resin composition may contain solid particulate materials. The procedures for curing such epoxy resins as well as methods for forming sand cores and molds also are described. Sand cores and molds produced in accordance with the method of the invention have sufficient strength and hardness after a few seconds of curing for normal foundry applications.
摘要翻译：描述了可固化的环氧树脂组合物，其包含酸可固化的环氧树脂和能够与二氧化硫反应形成用于固化所述环氧树脂的催化剂的少量氧化剂的混合物。可固化环氧树脂组合物可以含有固体颗粒材料。还描述了固化这种环氧树脂的方法以及形成砂芯和模具的方法。根据本发明方法生产的砂芯和模具在用于正常铸造应用的几秒固化后具有足够的强度和硬度。

15. 发明授权

US4761441A Acid-curable compositions comprising mixtures of furan and epoxy resins and use in preparing formed, shaped, filled bodies 失效
标题翻译：包含呋喃和环氧树脂的混合物的酸可固化组合物，用于制备形成的，成形的填充体
公开(公告)号：US4761441A
公开(公告)日：1988-08-02
申请号：US750891
申请日：1985-07-01
申请人： Wayne D. Woodson
发明人： Wayne D. Woodson
IPC分类号： C08L61/00 , C08L63/00 , C08L71/14 , C08K3/36 , C08L45/00 , C08L71/06
CPC分类号： C08L63/00 , C08L61/00 , C08L71/14
摘要： Acid-curable resin compositions are described which comprise a mixture of a furan resin and a minor amount of an acid-curable epoxy resin. The acid-curable resin compositions may contain other components such as catalysts, solid particulate materials, etc. The procedures for curing such acid-curable resin compositions as well as methods for forming shaped, filled bodies such as sand cores and molds also are described. Sand cores and molds produced in accordance with the method of the invention exhibit good compression strength, good chemical resistance and increase resistance to stress cracking.
摘要翻译：描述了包含呋喃树脂和少量可酸固化环氧树脂的混合物的酸可固化树脂组合物。酸固化树脂组合物可以含有其它成分如催化剂，固体颗粒材料等。用于固化这种酸固化树脂组合物的方法以及用于形成诸如砂芯和模具的成形填充体的方法也被描述。根据本发明方法生产的砂芯和模具表现出良好的抗压强度，良好的耐化学性和增加的抗应力开裂性。

16. 发明授权

US4518723A Curable epoxy resin compositions and use in preparing formed, shaped, filled bodies 失效
标题翻译：可固化的环氧树脂组合物和用于制备形成的，成形的填充体
公开(公告)号：US4518723A
公开(公告)日：1985-05-21
申请号：US436031
申请日：1982-10-22
申请人： Wayne D. Woodson
发明人： Wayne D. Woodson
IPC分类号： B22C1/22 , C08G59/18 , C08G59/40 , C08L63/00 , C08K3/36
CPC分类号： C08G59/40 , B22C1/2206 , B22C1/222 , B22C1/224 , B22C1/2246 , B22C1/226 , C08G59/18 , C08L63/00
摘要： Curable epoxy resin compositions are described which comprise a mixture of an acid curable epoxy resin and a minor amount of an oxidizing agent capable of reacting with sulfur dioxide to form a catalyst for curing said epoxy resin. The curable epoxy resin composition may contain solid particulate materials. The procedures for curing such epoxy resins as well as methods for forming sand cores and molds also are described. Sand cores and molds produced in accordance with the method of the invention have sufficient strength and hardness after a few seconds of curing for normal foundry applications.
摘要翻译：描述了可固化的环氧树脂组合物，其包含酸可固化的环氧树脂和能够与二氧化硫反应形成用于固化所述环氧树脂的催化剂的少量氧化剂的混合物。可固化环氧树脂组合物可以含有固体颗粒材料。还描述了固化这种环氧树脂的方法以及形成砂芯和模具的方法。根据本发明方法生产的砂芯和模具在用于正常铸造应用的几秒固化后具有足够的强度和硬度。

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