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公开(公告)号：US4778863A
公开(公告)日：1988-10-18
申请号：US85035
申请日：1987-08-13
Applicant: Chun S. Wang , Zeng-kun Liao
Inventor： Chun S. Wang , Zeng-kun Liao
CPC classification number: C08G59/02
Abstract: Glycidyl derivatives of compounds containing --OH, --NH.sub.2 and/or --COOH groups are prepared by reacting in the presence of a mixture of solvents, at least one of which is a polar aprotic solvent, an excess of an epihalohydrin with a compound containing --OH, --NH.sub.2 and/or --COOH groups while continuously or incrementally adding an alkali metal hydroxide to the mixture and removing water from the reaction by codistillation with epihalohydrin and the solvents.
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2.发明授权Monomers and oligomers containing a plurality of vinylbenzyl ether groups, method for their preparation and cured products therefrom 失效含有多个乙烯基苄基醚基团的单体和低聚物，其制备方法和固化产物
公开(公告)号：US4707558A
公开(公告)日：1987-11-17
申请号：US903165
申请日：1986-09-03
Applicant: Chun S. Wang , Zeng-kun Liao , Dennis L. Steele
Inventor： Chun S. Wang , Zeng-kun Liao , Dennis L. Steele
IPC: C07C43/20 , C07C41/00 , C07C41/16 , C07C43/215 , C07C43/225 , C07C43/275 , C07C45/00 , C07C49/83 , C07C67/00 , C07C313/00 , C07C315/04 , C07C317/22 , C07C323/20 , C08F12/34 , C08F290/00 , C08F299/00 , C08G65/48 , C08L71/00 , C07C149/12
CPC classification number: C07C43/215 , C07C317/00 , C07C43/225
Abstract: Monomers and oligomers containing a plurality of vinylbenzyl ether groups are prepared by reacting a material containing a plurality of aromatic hydroxyl groups such as tetramethyltetrabromobisphenol A with a vinylbenzyl halide such as vinylbenzyl chloride in the presence of a polar aprotic solvent such as dimethylformamide. The monomers and oligomers prepared by this process have an improvement in one or more properties selected from dielectric constant (before and/or after moisture absorption) or thermal stability. Also disclosed are new monomers and oligomers containing a plurality of vinylbenzyl ether groups such as bis(vinylbenzyl)ether of dicyclopentadienyl bisdimethylphenol.
Abstract translation: 含有多个乙烯基苄基醚基团的单体和低聚物通过在极性非质子溶剂如二甲基甲酰胺存在下使含有多个芳族羟基的物质如四甲基四溴双酚A与乙烯基苄基卤如乙烯基苄基氯反应来制备。 通过该方法制备的单体和低聚物具有从介电常数（吸湿之前和/或之后）或热稳定性中选择的一种或多种性质的改进。 还公开了含有多个乙烯基苄基醚基团的新单体和低聚物，例如二环戊二烯基双二甲基苯酚的双（乙烯基苄基）醚。
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公开(公告)号：US5028686A
公开(公告)日：1991-07-02
申请号：US584954
申请日：1990-09-18
Applicant: Zeng-Kun Liao , Chun S. Wang
Inventor： Zeng-Kun Liao , Chun S. Wang
IPC: C08G59/02
CPC classification number: C08G59/02
Abstract: Epoxy resins which are relatively low in total bound halide are prepared by concurrently and continuously adding a mixture of (1) a mixture of an epihalohydrin, a compound containing an average of more than one group reactive with a vicinal epoxide group and a solvent and (2) an aqueous or organic solution of an alkali or alkaline earth metal hydroxide; to (3) a mixture of epihalohydrin and a solvent.
Abstract translation: 总结合卤化物相对低的环氧树脂通过同时并连续地加入（1）表卤代醇，包含平均多于一个与邻位环氧基团反应的基团的化合物与溶剂的混合物和（ 2）碱金属或碱土金属氢氧化物的水溶液或有机溶液; 至（3）表卤代醇与溶剂的混合物。
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4.发明授权Method for reducing the aliphatic halide content of epoxy resins using a solvent mixture including a polar aprotic solvent 失效使用包含极性非质子溶剂的溶剂混合物降低环氧树脂的脂族卤化物含量的方法
公开(公告)号：US4785061A
公开(公告)日：1988-11-15
申请号：US85046
申请日：1987-08-13
Applicant: Chun S. Wang , Zeng-Kun Liao
Inventor： Chun S. Wang , Zeng-Kun Liao
CPC classification number: C08G59/00
Abstract: The total halide content of epoxy resins is reduced by heating a resin containing undesirable halide dissolved in a solvent mixture containing at least one polar aprotic solvent in the presence of an alkali metal hydroxide for a time sufficient to reduce the total halide content.
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公开(公告)号：US4740330A
公开(公告)日：1988-04-26
申请号：US903164
申请日：1986-09-03
Applicant: Chun S. Wang , Zeng-kun Liao
Inventor： Chun S. Wang , Zeng-kun Liao
Abstract: The aromatic hydroxyl groups of aromatic hydroxyl-containing compounds can be allylated to greater than 95% conversion by reacting the alkali metal salt of said aromatic hydroxyl-containing compounds with an allyl halide such as allyl chloride in the presence of a polar aprotic solvent such as dimethylformamide. These compounds are useful in preparing epoxy resins containing a low halogen content.
Abstract translation: 芳香族含羟基化合物的芳香族羟基可以通过使所述含芳族羟基化合物的碱金属盐与烯丙基卤化物如烯丙基氯在极性非质子溶剂如 二甲基甲酰胺。 这些化合物可用于制备含有低卤素含量的环氧树脂。
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Patent Agency Ranking
公开(公告)号：US5028668A
公开(公告)日：1991-07-02
申请号：US549177
申请日：1990-07-06
Applicant: Chun S. Wang , Abel Mendoza
Inventor： Chun S. Wang , Abel Mendoza
IPC: C07D303/24 , C08G59/14 , C08G59/36 , H01B3/40 , H01L23/29
CPC classification number: C07D303/24 , C08G59/1444 , C08G59/145 , C08G59/36 , H01B3/40 , H01L23/293 , H01L2924/0002
Abstract: Adducts of metabrominated monophenols such as 3,5-dibromo-2,4,6-trimethylphenol and multifunctional epoxides such as cresol-formaldehyde epoxy novolac resins are disclosed to be useful in formulations for encapsulating electronic components.
Abstract translation: 公开了代谢溴化单酚如3,5-二溴-2,4,6-三甲基苯酚和多官能环氧化物如甲酚 - 甲醛环氧酚醛清漆树脂的加合物，用于封装电子部件的制剂中。
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7.发明授权Process for preparing phenolic hydroxyl-containing compounds from 2,6-dibromo-3,5-dialkyl-4-hydroxybenzyl ethers 失效从2,6-二溴-3,5-二烷基-4-羟基苄基醚制备含酚羟基化合物的方法
公开(公告)号：US4892925A
公开(公告)日：1990-01-09
申请号：US300460
申请日：1989-01-23
Applicant: Chun S. Wang , Abel Mendoza , David B. Fritz
Inventor： Chun S. Wang , Abel Mendoza , David B. Fritz
IPC: C07D303/22 , C07C43/23 , C07D303/27 , C08G59/06 , C08G59/14 , C08G59/30 , C08G59/40 , C08K7/04 , C08L63/00
CPC classification number: C07C43/23 , C08G59/066 , C08G59/30
Abstract: 2,6-dibromo-3,5-dialkyl-4-hydroxybenzyl ethers, glycidyl ethers thereof and reaction products with phenolic hydroxyl-containing compounds, and glycidyl ethers of the resulting new phenolic hydroxyl-containing compounds.
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公开(公告)号：US4731423A
公开(公告)日：1988-03-15
申请号：US896480
申请日：1986-08-13
Applicant: Abel Mendoza , Chun S. Wang , Eric E. Bancroft , David B. Fritz
Inventor： Abel Mendoza , Chun S. Wang , Eric E. Bancroft , David B. Fritz
IPC: C07D215/16 , C07C39/367 , C07C39/38 , C07C39/42 , C07C211/52 , C07C235/16 , C07C235/88 , C07C271/28 , C07C271/30 , C07D217/02 , C07D237/28 , C08F8/20 , C08G8/28 , C08G59/02 , C08G59/08 , C08G59/30 , C08G59/36 , C08G64/42 , C08G59/06 , C07C39/12
CPC classification number: C07C39/42 , C07C39/367 , C08G59/08 , C08G59/30
Abstract: Titled materials and their preparation. The materials contain a moiety such as, for example, 4-oxy-3,5-dimethyl-2,6-dibromobenzyl which can impart a high degree of thermal and hydrolytic stability to the materials, for example, epoxy thermosets such as in electronic encapsulations. For example, when used in electronic encapsulation formulations, these materials can provide a substantial increase in electronic device reliability. Their preparation involves an alkylation of an aromatic ring, for example, such as a Friedel-Crafts alkylation with 4-bromomethyl-3,5-dibromo-2,6-dimethylphenol or with 4-hydroxymethyl-3,5-dibromo-2,6-dimethylphenol.
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公开(公告)号：US4499255A
公开(公告)日：1985-02-12
申请号：US523910
申请日：1983-08-16
Applicant: Chun S. Wang , Ha Q. Pham , James L. Bertram
Inventor： Chun S. Wang , Ha Q. Pham , James L. Bertram
CPC classification number: C08G59/10 , C08G59/063
Abstract: Epoxy resins are prepared by reacting an excess of an epihalohydrin with a phenolic hydroxyl-containing compound in the presence of the incremental addition of a basic catalyst while removing water by codistilling with a solvent and epihalohydrin.
Abstract translation: 环氧树脂通过使过量的表卤代醇与含酚羟基的化合物在增量添加碱性催化剂的存在下反应制备，同时通过用溶剂和表卤代醇进行分馏除去水。
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公开(公告)号：US4895755A
公开(公告)日：1990-01-23
申请号：US259449
申请日：1988-10-14
Applicant: Jody R. Berman , Chun S. Wang , Louis L. Walker , Abel Mendoza
Inventor： Jody R. Berman , Chun S. Wang , Louis L. Walker , Abel Mendoza
CPC classification number: C08G59/30 , C07C37/62 , C07D303/24 , C08G59/066 , C08G59/3218 , H05K1/0326 , Y10T428/31522 , Y10T428/31529 , Y10T442/2434 , Y10T442/2992
Abstract: Advanced epoxy resins are disclosed which result from the reaction of a relatively low molecular weight epoxy resin and a polyhydric phenol wherein at least one of the reactants contains at least one halogen atom which is meta with respect to a glycidyl ether group or a hydroxyl group attached to an aromatic ring. These advanced epoxy resins, when cured with a suitable curing agent, possess an improvement as compared to an advanced epoxy resin containing halogen atoms which are ortho with respect to a glycidyl ether group in at least one of thermal stability, glass transition temperature, relationship of viscosity to molecular weight and resistance to forming hydrolyzed halides in the presence of a refluxing solution of an alkali metal hydroxide.
Abstract translation: 公开了先进的环氧树脂，其由相对低分子量的环氧树脂和多元酚的反应产生，其中至少一种反应物含有至少一个相对于缩水甘油醚基团或羟基的元素的卤素原子 到一个芳香环。 这些先进的环氧树脂在用适当的固化剂固化时具有改进，与在热稳定性，玻璃化转变温度，玻璃化转变温度的关系中，相对于缩水甘油基醚基相邻的卤素原子的先进环氧树脂相比， 在碱金属氢氧化物的回流溶液存在下，粘度对分子量和耐水解卤化物的抗性。
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