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1. 发明授权

US4287092A Acid catalysis of resin foundry binders 失效
标题翻译：树脂铸造粘合剂的酸催化
公开(公告)号：US4287092A
公开(公告)日：1981-09-01
申请号：US117251
申请日：1980-01-31
申请人： Patrick H. Stewart , Wayne D. Woodson
发明人： Patrick H. Stewart , Wayne D. Woodson
IPC分类号： B01J31/02 , B01J31/04 , C08K3/16 , C08K5/42
CPC分类号： C08K3/16 , B01J31/0225 , C08K5/42
摘要： A method of producing sand cores or molds for foundry use involves coating the sand with a novel acid catalyst composition and adding acid-curing, condensation-type resin.A novel acid catalyst composition comprises the mixture of a sulfonic acid such as benzene sulfonic acid, toluene sulfonic acid or xylene sulfonic acid, or mixtures thereof, with 0.5-20% wt. perchloric acid. A catalyst of this composition, when admixed with foundry sand and an acid-curing condensation-type resin, is a novel composition characterized by rapid cure and high tensile strength and hardness in the resulting resin-bound sand core or mold. Sand cores or molds made using this catalyst/sand/resin composition are further characterized by low emissions of oxidizable gaseous organic constituents.
摘要翻译：生产砂芯或铸造用铸模的方法包括用新的酸催化剂组合物涂覆砂，并加入酸固化缩合型树脂。一种新的酸催化剂组合物包括磺酸如苯磺酸，甲苯磺酸或二甲苯磺酸或其混合物与0.5-20重量％的混合物。高氯酸。该组合物的催化剂在与铸造砂和酸固化缩合型树脂混合时是一种新颖的组合物，其特征在于在所得树脂结合的砂芯或模具中快速固化和高拉伸强度和硬度。使用该催化剂/砂/树脂组合物制成的砂芯或模具的特征还在于可氧化气体有机成分的排放量低。

2. 发明授权

US4176114A Process for manufacturing sand cores or molds 失效
标题翻译：砂芯或模具的制造工艺
公开(公告)号：US4176114A
公开(公告)日：1979-11-27
申请号：US871772
申请日：1978-01-24
申请人： Patrick H. Stewart , Wayne D. Woodson
发明人： Patrick H. Stewart , Wayne D. Woodson
IPC分类号： B22C1/22 , C08L61/34 , C08L71/14 , C08K3/36
CPC分类号： B22C1/224 , C08L61/34 , C08L71/14
摘要： Sand molds or cores are prepared by coating sand particles with an acid-curing condensation type resin consisting of poly furfuryl alcohol or admixtures of poly furfuryl alcohol with other acid-curing resins. The resin composition is formed into a desired shape and is cured at ambient temperature over a period of between a few seconds and a few minutes by means of an acid produced by in situ oxidation of sulfur dioxide. Sulfur dioxide is introduced into the molding composition together with an oxidizing agent which effects oxidation of the sulfur dioxide within the mold or core composition. Preferably, the oxidizing agent is an organic peroxide incorporated on the sand or introduced with the resin composition. The formation of sand cores or molds from resins comprising poly furfuryl alcohol results in products having improved tensile strengths, improved hardness, and characterized by virtually no migration or furfuryl alcohol polymers to or coating of the molds or patterns used in sand core or mold preparation.
摘要翻译：通过用由聚糠醇或聚糠醇与其它酸固化树脂的混合物组成的酸固化缩合型树脂涂覆砂粒来制备砂模或芯。树脂组合物形成所需的形状，并通过二氧化硫的原位氧化产生的酸在环境温度下固化几秒至几分钟的时间。将二氧化硫与氧化剂一起引入模塑组合物中，氧化剂在模具或芯组合物内产生二氧化硫的氧化。优选地，氧化剂是结合在沙子上或与树脂组合物一起引入的有机过氧化物。由包含聚糠醇的树脂形成砂芯或模具导致具有改进的拉伸强度，改进的硬度的产品，并且特征在于实际上没有迁移或糠醇聚合物或用于砂芯或模具制备中的模具或图案的涂覆。

3. 发明授权

US4396526A Organic hydroperoxide catalyst system 失效
标题翻译：有机氢过氧化物催化剂体系
公开(公告)号：US4396526A
公开(公告)日：1983-08-02
申请号：US204330
申请日：1980-11-05
申请人： Wayne D. Woodson , Patrick H. Stewart
发明人： Wayne D. Woodson , Patrick H. Stewart
IPC分类号： B22C1/20 , C08F4/38 , C08K5/14
CPC分类号： C08K5/14 , B22C1/20
摘要： A peroxide system or composition for use in resin polymerization consists of 1,4-diisopropylbenzene monohydroperoxide dissolved in an organic solvent which is a solvent for hydrogen peroxide and 1,4-diisopropylbenzene dihydroperoxide. The peroxide composition is characterized by its storage stability, resistance to detonation, low flammability, ease of handling and improved catalytic properties in the polymerization of certain resins. The preferred peroxide, based on economic considerations, is a crude diisopropylbenzene hydroperoxide mixture comprising a major amount of 1,4-diisopropylbenzene monohydroperoxide and a minor amount of 1,4-diisopropylbenzene dihydroperoxide, together with solvents and unreacted materials obtained as a byproduct in the commercial manufacture of p-diisopropylbenzene dihydroperoxide. A particularly stable and useful composition consists of about 20% solvent, preferably cyclohexanone, and 80% of a mixture consisting of a major part of crude diisopropylbenzene hydroperoxide and a minor part of hydrogen peroxide. This peroxide composition, and the 1,4-diisopropylbenzene monohydroperoxide, or the crude diisopropylbenzene hydroperoxide, are soluble in or miscible with furfuryl alcohol-formaldehyde resin prepolymers. The peroxide composition and the resin prepolymer are added to sand, formed into cores or molds, and gassed with sulfur dioxide, and optionally purged with air, at a temperature from room temperature to about 300.degree. F. for a time a fraction of a second to several minutes to form superior sand cores and molds.
摘要翻译：用于树脂聚合的过氧化物体系或组合物由溶解在作为过氧化氢和1,4-二异丙基苯二氢过氧化物的溶剂的有机溶剂中的1,4-二异丙苯单氢过氧化物组成。过氧化物组合物的特征在于其在某些树脂的聚合中的储存稳定性，耐爆震性，低可燃性，易于处理和改善催化性能。基于经济考虑，优选的过氧化物是包含主要量的1,4-二异丙基苯单过氧化氢和少量1,4-二异丙基苯二氢过氧化物的粗二异丙基苯氢过氧化物混合物，以及作为副产物获得的溶剂和未反应材料商业制造对二异丙苯二氢过氧化物。特别稳定和有用的组合物由约20％溶剂，优选环己酮和80％由主要部分粗二异丙基苯氢过氧化物和少量过氧化氢组成的混合物组成。这种过氧化物组合物和1,4-二异丙基苯单过氧化氢或粗二异丙基苯氢过氧化物可溶于糠醇 - 甲醛树脂预聚物或与糠醛 - 甲醛树脂预混物混溶。将过氧化物组合物和树脂预聚物加入到砂中，形成芯或模具，并用二氧化硫气化，并且可选地用空气吹扫，在室温至约300°F的温度下进行几分之一秒几分钟即可形成优质砂芯和模具。

4. 发明授权

US4529807A Furfuryl esters and resins 失效
标题翻译：糠酯和树脂
公开(公告)号：US4529807A
公开(公告)日：1985-07-16
申请号：US574664
申请日：1984-01-27
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 , C08K5/1535
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 particularly 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。组合物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。

5. 发明授权

US4478962A Binder compositions comprising furfuryl ester and furfuryl ester-furuyl alcohol combinations 失效
标题翻译：包含糠酯和糠基酯 - 呋喃醇组合的粘合剂组合物
公开(公告)号：US4478962A
公开(公告)日：1984-10-23
申请号：US510835
申请日：1983-07-05
申请人： Wayne D. Woodson
发明人： Wayne D. Woodson
IPC分类号： B22C1/22 , C08K5/1535 , C08F32/06
CPC分类号： C08K5/1535 , B22C1/224
摘要： Acid-curable furfuryl alcohol prepolymer binders 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.2when n is from 1 to 8, R.sup.1 is furfuryl, and R.sup.2 is furfuryl or methyl. The diesters 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. These furfuryl esters are also acid-curable and can be used alone as resin binders.
摘要翻译：当n为1至8，R 1为糠基，且R 2为糠基或甲基时，可酸固化的糠醇预聚物粘合剂与组合物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。二酯的添加量优选为总组合物的5-35重量％。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。这些糠酯也是可酸固化的，可以单独使用作为树脂粘合剂。

6. 发明申请

US20120014833A1 FREE RADICAL INITIATOR COMPOSITIONS CONTAINING T-BUTYL HYDROPEROXIDE AND THEIR USE 审中-公开
标题翻译：含有叔丁基氢过氧化物的自由基发射体组合物及其用途
公开(公告)号：US20120014833A1
公开(公告)日：2012-01-19
申请号：US12837716
申请日：2010-07-16
申请人： Wayne D. Woodson , H. Randall Shriver
发明人： Wayne D. Woodson , H. Randall Shriver
IPC分类号： B22C9/06 , C08G65/48 , C22C21/00
CPC分类号： B22C1/22 , B22C1/222 , B22C1/226 , B22C9/123 , C08L63/00 , C08L2205/05 , C08L33/08
摘要： A composition comprising (a) an epoxy resin; and (b) a hydroperoxide composition comprising a t-butyl hydroperoxide solution that contains no more than 7 weight percent water, and use of the compositions to prepare foundry shapes, the foundry shapes prepared by the process, the use of the foundry shapes to prepare cast metal articles, and the cast metal articles prepared by the process.
摘要翻译：一种组合物，其包含（a）环氧树脂; 和（b）含有不超过7重量％水的叔丁基过氧化氢溶液的氢过氧化物组合物，以及使用组合物制备铸造形状，通过该方法制备的铸造形状，使用铸造形状来制备铸造金属制品和通过该工艺制备的铸造金属制品。

7. 发明授权

US06662854B2 Cold-box foundry binder systems having improved shakeout 有权
标题翻译：具有改善振动的冷箱式铸造粘合剂系统
公开(公告)号：US06662854B2
公开(公告)日：2003-12-16
申请号：US10117462
申请日：2002-04-05
申请人： Wayne D. Woodson , H. Randall Shriver
发明人： Wayne D. Woodson , H. Randall Shriver
IPC分类号： B22C114
CPC分类号： B22C1/226 , 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 aliphatic epoxy resin; (b) a multifunctional acrylate; and (c) 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, particularly aluminum 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，其包含（a）脂族环氧树脂; （b）多官能丙烯酸酯; 和（c）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，特别是铝铸件的铸造形状（例如芯和模具）。

8. 发明授权

US06604567B1 Free radically cured cold-box binders containing an alkyl silicate 有权
标题翻译：含有硅酸烷基酯的自由基固化的冷箱粘合剂
公开(公告)号：US06604567B1
公开(公告)日：2003-08-12
申请号：US10076057
申请日：2002-02-14
申请人： Wayne D. Woodson , H. Randall Shriver
发明人： Wayne D. Woodson , H. Randall Shriver
IPC分类号： B22D1900
CPC分类号： B22C1/222 , B22C1/22
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 resin; (b) an acrylate; (c) an alkyl silicate; 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, particularly ferrous 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）环氧树脂; （b）丙烯酸酯; （c）硅酸烷基酯; 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，特别是含铁铸件的铸造形状（例如芯和模具）。

9. 发明授权

US4563487A 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，形状，填充体的用途
公开(公告)号：US4563487A
公开(公告)日：1986-01-07
申请号：US703090
申请日：1985-03-29
申请人： Wayne D. Woodson
发明人： Wayne D. Woodson
IPC分类号： B22C1/22 , C08G59/18 , C08G59/40 , C08K3/36
CPC分类号： B22C1/2206 , B22C1/222 , B22C1/224 , B22C1/2246 , B22C1/226 , C08G59/18 , C08G59/40
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.

10. 发明授权

US07354638B2 Porous wet friction material utilizing a compliant epoxide resin binder system 有权
标题翻译：使用顺应性环氧树脂粘合剂体系的多孔湿摩擦材料
公开(公告)号：US07354638B2
公开(公告)日：2008-04-08
申请号：US11330829
申请日：2006-01-12
申请人： Laurie Bowles , Samuel Truncone , Wayne D. Woodson , Wenping Zhao
发明人： Laurie Bowles , Samuel Truncone , Wayne D. Woodson , Wenping Zhao
IPC分类号： B32B3/02
CPC分类号： C08G59/245 , F16D69/026 , Y10T428/213 , Y10T428/249924 , Y10T428/24994
摘要： A wet friction material is disclosed bonded to a plate for transmission of motion, with the friction material made up of a porous fiber substrate, which is at least partially impregnated with a catalyzed resorcinol diglycidyl ether resin to improve properties.
摘要翻译：公开了一种湿摩擦材料，其结合到用于传播运动的板上，摩擦材料由多孔纤维基材组成，多孔纤维基材至少部分地浸渍有催化的间苯二酚二缩水甘油醚树脂以改善性能。

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