专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4699965A Heat curable solventless liquid prepolymer and novel monomer derived from hexylcarbitol for use therewith 失效
标题翻译：可热固化的无溶剂液体预聚物和来自己基碳水化合物的新型单体与其一起使用
公开(公告)号：US4699965A
公开(公告)日：1987-10-13
申请号：US750403
申请日：1985-06-28
申请人： Richard A. Markle , Wayne R. Melchior
发明人： Richard A. Markle , Wayne R. Melchior
IPC分类号： C07D209/48 , C08F236/12 , C08F20/58
CPC分类号： C07D209/48 , C08F236/12
摘要： A solventless prepolymer which is liquid at room temperature and cures at about 350.degree. F. The novel prepolymer is formed from a rubber monomer; acrylonitrile or methacrylonitrile; and an ether derivative of methylol acrylamide. The ether is formed from methylol acrylamide and an alcohol which boils above the cure temperature of the prepolymer and which preferably is hexyl carbitol. The prepolymer is formed with sufficient chain transfer agent to establish a weight average molecular weight of the prepolymer less than about 25,000. The prepolymer is heat curable to form a solid polymer with excellent compression set, tensile strength, and fuel resistivity. The method of formulating these polymers is also disclosed.
摘要翻译：无溶剂预聚物，其在室温下为液体并在约350°F下固化。新型预聚物由橡胶单体形成; 丙烯腈或甲基丙烯腈; 和羟甲基丙烯酰胺的醚衍生物。醚由羟甲基丙烯酰胺和沸点高于预聚物固化温度的醇形成，优选为己基卡必醇。预聚物由足够的链转移剂形成，以建立预聚物的重均分子量小于约25,000。预聚物是可热固化的，以形成具有优异的压缩永久变形，拉伸强度和燃料电阻率的固体聚合物。还公开了配制这些聚合物的方法。

2. 发明授权

US4562008A Heat curable solventless liquid prepolymer and novel monomer derived from hexylcarbitol for use therewith 失效
公开(公告)号：US4562008A
公开(公告)日：1985-12-31
申请号：US459947
申请日：1983-01-21
申请人： Richard A. Markle , Wayne R. Melchior
发明人： Richard A. Markle , Wayne R. Melchior
IPC分类号： C07D209/48 , C08F236/12 , C08F8/00 , C07C121/00 , C08F222/36
CPC分类号： C07D209/48 , C08F236/12
摘要： A solventless prepolymer which is liquid at room temperature and cures at about 350.degree. F. The novel prepolymer is formed from a rubber monomer; acrylonitrile or methacrylonitrile; and an ether derivative of methylol acrylamide. The ether is formed from methylol acrylamide and an alcohol which boils above the cure temperature of the prepolymer and which preferably is hexyl carbitol. The prepolymer is formed with sufficient chain transfer agent to establish a weight average molecular weight of the prepolymer less than about 25,000. The prepolymer is heat curable to form a solid polymer with excellent compression set, tensile strength, and fuel resistivity. The method of formulating these polymers is also disclosed.

3. 发明授权

US4939271A Mercapto-modified N-(R-oxymethyl) acrylamide/rubber-formable monomer/(meth)acrylonitrile terpolymers 失效
标题翻译：巯基改性的N-（R-氧甲基）丙烯酰胺/可橡胶形成的单体/（甲基）丙烯腈三元共聚物
公开(公告)号：US4939271A
公开(公告)日：1990-07-03
申请号：US293671
申请日：1989-01-05
申请人： Richard A. Markle
发明人： Richard A. Markle
IPC分类号： C08F236/12 , C08L63/00
CPC分类号： C08F236/12 , C08L63/00
摘要： Epoxy and epoxy novolak resins are impact modified by adding an effective amount of a acrylamide diene nitrile rubber terpolymer to the resin. In a preferred embodiment, the acrylamide diene nitrile rubber includes an acid or ester group attached to the acrylamide portion of the polymer generally through a thiol group. The liquid terpolymer is reacted in the presence of acid catalysts with the resin to provide impact modification.
摘要翻译：环氧树脂和环氧酚醛清漆树脂通过向树脂中加入有效量的丙烯酰胺二烯腈橡胶三元共聚物进行冲击改性。在优选的实施方案中，丙烯酰胺二烯丁腈橡胶包括通常通过硫醇基连接到聚合物的丙烯酰胺部分的酸或酯基。液体三元共聚物在酸催化剂存在下与树脂反应以提供冲击改性。

4. 发明授权

US4629796A N-[[2-(1,3-dihydro-1,3-dioxo-2H-isoindol-Z-yl)etho xy]methyl]-Z-propenamide 失效
标题翻译： N - [[2-（1,3-二氢-1,3-二氧代-2H-异吲哚-Z-基）乙氧基]甲基] -Z-丙烯酰胺
公开(公告)号：US4629796A
公开(公告)日：1986-12-16
申请号：US738740
申请日：1985-05-29
申请人： Richard A. Markle
发明人： Richard A. Markle
IPC分类号： C07D209/48 , C08F236/12
CPC分类号： C07D209/48 , C08F236/12
摘要： A heat curable, solventless liquid prepolymer is prepared from a rubber monomer; a nitrile monomer such as acrylonitrile or methacrylonitrile; and a novel monomer having the following formula: ##STR1## The prepolymer is formed with sufficient chain transfer agent to establish a weight average molecular weight less than about 25,000. This low viscosity prepolymer is heat curable to form a solid rubber polymer suitable for use as a gasket.
摘要翻译：由橡胶单体制备可热固化的无溶剂液体预聚物; 腈单体如丙烯腈或甲基丙烯腈; 和具有下式的新型单体：预聚物由足够的链转移剂形成以确定小于约25,000的重均分子量。该低粘度预聚物是可热固化的，以形成适合用作垫圈的固体橡胶聚合物。

5. 发明授权

US5239039A Polyarylimidazolidines with phenolic hydroxyl end groups 失效
标题翻译：具有酚羟基端基的聚芳基咪唑烷
公开(公告)号：US5239039A
公开(公告)日：1993-08-24
申请号：US740335
申请日：1991-08-05
申请人： Richard A. Markle
发明人： Richard A. Markle
IPC分类号： C08G18/28 , C08G18/32 , C08G18/38 , C08G18/42 , C08G18/44 , C08G18/64 , C08G18/66 , C08G18/80 , C08G73/06 , C08G75/02 , C09J175/06
CPC分类号： C08G18/664 , C08G18/2815 , C08G18/3215 , C08G18/3221 , C08G18/3897 , C08G18/4222 , C08G18/44 , C08G18/64 , C08G18/6438 , C08G18/6453 , C08G18/8029 , C08G18/8067 , C08G73/0616 , C08G75/0204 , C09J175/06 , C08G2120/00 , C08G2150/20 , C08G2170/20 , C08G2250/00
摘要： Polyarylimidazolidines with a degree of polymerization of about one to twenty and having phenolic hydroxyl end groups and a novel three-step process for their preparation are described. In the first step of the process, an excess of hydrogen cyanide is reactive with an aryl diisocyanate. The excess hydrogen cyanide promotes polymerization and avoids the reaction of the imino hydrogen on the heterocyclic range with the diisocyanate to form cross linkage and associated gel formation. In the second step, a stoichiometric amount of diisocyanate is added to react with the excess hydrogen cyanide and one hydroxyl of a phenolic dihydroxyl end capping group. In the final third step, the dihydroxyl end capping group is added and the remaining diisocyanate reacts with one of the two phenolic hydroxyls on the end capping group.
摘要翻译：描述聚合度为约1-20的具有酚羟基端基的聚芳基咪唑烷和其制备新颖的三步法。在该方法的第一步中，过量的氰化氢与芳基二异氰酸酯反应。过量的氰化氢促进聚合，避免亚氨基氢在杂环范围内与二异氰酸酯的反应，形成交联和相关的凝胶形成。在第二步中，加入化学计量的二异氰酸酯与过量的氰化氢和酚二羟基封端基团的一个羟基反应。在最后的第三步中，加入二羟基封端基团，剩余的二异氰酸酯与封端基团上的两个酚羟基之一反应。

6. 发明授权

US4812521A Epoxy resins modified with N-R-[(oxy or thio)methyl]acrylamide terpolymers 失效
标题翻译：用N-R - [（氧基或硫代）甲基]丙烯酰胺三元共聚物改性的环氧树脂
公开(公告)号：US4812521A
公开(公告)日：1989-03-14
申请号：US99253
申请日：1987-09-21
申请人： Richard A. Markle
发明人： Richard A. Markle
IPC分类号： C08F236/12 , C08G59/00 , C08L63/00 , C08L11/00 , C08L9/02 , C08L33/26 , C08L63/02
CPC分类号： C08F236/12 , C08L63/00
摘要： Epoxy and epoxy novolak resins are impact modified by adding an effective amount of an acrylamide diene nitrile rubber terpolymer to the resin. In a preferred embodiment, the acrylamide diene nitrile rubber includes an acid or ester group attached to the acrylamide portion of the polymer generally through a thiol group. The liquid terpolymer is reacted in the presence of acid catalysts with the resin to provide impact modification.

7. 发明授权

US06989466B2 Reversible crosslinked polymers, benzylic hydroxyl crosslinkers and method 失效
公开(公告)号：US06989466B2
公开(公告)日：2006-01-24
申请号：US10404284
申请日：2003-03-31
申请人： Herman P. Benecke , Richard A. Markle
发明人： Herman P. Benecke , Richard A. Markle
IPC分类号： C08G18/80
CPC分类号： C08G18/8067 , C08G18/10 , C08G18/3215 , C08G18/8012 , C08G18/3206 , C08G18/2835
摘要： A polymer having a crosslinked structure made from a polyol and an isocyanate where the crosslinks contain urethane and/or ester bonds made from the reaction of a benzylic hydroxyl group and an isocyanate group.

8. 发明授权

US5332839A Catalytic production of lactide directly from lactic acid 失效
标题翻译：直接从乳酸催化生产丙交酯
公开(公告)号：US5332839A
公开(公告)日：1994-07-26
申请号：US584466
申请日：1990-09-18
申请人： Herman P. Benecke , Richard A. Markle , Richard G. Sinclair
发明人： Herman P. Benecke , Richard A. Markle , Richard G. Sinclair
IPC分类号： B01J21/04 , B01J21/08 , C07B61/00 , C07D319/12
CPC分类号： C07D319/12 , B01J2219/1942
摘要： The present invention is directed to a method for making lactide from aqueous lactic acid. The invention method comprises converting feed aqueous lactic acid to its vapor phase. The feed vapors then are passed through a reactor maintained at elevated temperature and in which optionally is disposed an alumina catalyst. Withdrawn from the reactor is product lactide, water, and unreacted lactic acid which are subjected to separation for recovery of the lactide product. The separated unreacted lactic acid is eligible for readmission to the process for making additional lactide. This cyclic process embodiment of the present invention comprises the steps of passing make-up aqueous lactic acid feed into a vaporization zone along with unreacted aqueous lactic acid filtrate from another step of the process and therein forming aqueous lactic acid feed vapors. The thus-generated vapors that are passed through a vapor phase reaction zone held at elevated temperature for forming lactide therein. Lactide as a solid is separated from unreacted aqueous lactic acid filtrate; and the filtrate is passed into the vaporization zone in the initial step of the process.
摘要翻译：本发明涉及从乳酸水溶液制备丙交酯的方法。本发明的方法包括将进料水乳酸转化成其气相。然后将进料蒸气通过保持在升高温度下的反应器，并且其中任选地设置氧化铝催化剂。从反应器中抽出的是产品丙交酯，水和未反应的乳酸，它们进行分离以回收丙交酯产物。分离的未反应的乳酸有资格重新进入制备额外的丙交酯的方法。本发明的循环方法实施方案包括以下步骤：将乳酸含水原料与来自该方法的另一步骤的未反应的乳酸水溶液一起送入蒸发区，并形成含水乳酸进料蒸气。由此产生的蒸气通过保持在升高的温度下的气相反应区以在其中形成丙交酯。作为固体的丙交酯与未反应的乳酸水溶液分离; 并且在该过程的初始步骤中将滤液进入蒸发区。

9. 发明授权

US5274127A Lactide production from dehydration of aqueous lactic acid feed 失效
标题翻译：乳酸生产脱水乳酸饲料
公开(公告)号：US5274127A
公开(公告)日：1993-12-28
申请号：US584126
申请日：1990-09-18
申请人： Richard G. Sinclair , Richard A. Markle , Russell K. Smith
发明人： Richard G. Sinclair , Richard A. Markle , Russell K. Smith
IPC分类号： C07D319/12 , C08J5/18 , C08L67/04 , C09D167/04 , C07D319/00
CPC分类号： C08J5/18 , C07D319/12 , C08L67/04 , C09D167/04 , B01J2219/1942 , C08J2367/04
摘要： The present invention is directed to a method for making L-lactide from aqueous L-lactic acid. Aqueous lactic acid feed for present purposes comprehends an aqueous mixture of one or more of L.sub.1 A, L.sub.2 A, and L.sub.3 A, optionally with LD being present. L-lactic acid is the preferred feed configuration for making L-lactide, and is to be understood even though the configuration symbol is not used throughout this application. Aqueous lactic acid feed is treated for removal of water therefrom until a degree of polymerization (DP) not substantially above about 2 is reached. The treatment then is ceased to produce a crude LD product. LD then is separated from the crude LD product. A preferred treatment involves heating the feed at elevated temperature to remove water. LD can be separated from the crude LD product by a variety of techniques to produce an LD-depleted product. This LD-depleted product, optionally augmented with additional aqueous lactic acid and/or water then can be readmitted to the process for making additional lactide. This cyclic or recycle process embodiment of the present invention enables very high lactide conversions to be realized.
摘要翻译：本发明涉及从L-乳酸水溶液制备L-丙交酯的方法。用于本发明目的的乳酸乳液饲料包括L1A，L2A和L3A中的一种或多种的任何含水混合物，任选地存在LD。 L-乳酸是用于制备L-丙交酯的优选进料构型，并且即使在本申请中不使用配置符号也将被理解。处理水性乳酸进料以从中除去水，直到达到基本上不超过约2的聚合度（DP）。然后处理停止生产粗制LD产品。然后将LD与粗LD产物分离。优选的处理包括在升高的温度下加热进料以除去水。 LD可以通过各种技术与粗LD产物分离以产生LD-贫化的产物。然后，任选地用另外的乳酸和/或水增加的LD-贫化产物可以重新进入用于制备额外的丙交酯的方法。本发明的这种循环或再循环方法实现了能够实现非常高的丙交酯转化。

10. 发明授权

US4467053A Process for producing an expandable silicone resin 失效
标题翻译：生产可膨胀硅树脂的方法
公开(公告)号：US4467053A
公开(公告)日：1984-08-21
申请号：US566276
申请日：1983-12-28
申请人： Richard A. Markle
发明人： Richard A. Markle
IPC分类号： C08J9/16 , C08J9/00 , C08J9/02 , C08J9/10
CPC分类号： C08J9/02 , C08J9/0066 , C08J9/10 , C08J2383/04
摘要： A process for the production of an expandable silicone resin includes reacting a substantial amount of the silanol (SiOH) groups present in the resin to form siloxane bonds and water, and heating the resin to a temperature above the resin's melting point, at which chemical reaction (condensation) of the silanol groups occur. The reaction increases the molecular weight of the resin and decreases the amount of water that must be removed during a subsequent foaming step, thereby controlling the rate and extent of foaming which can occur. The resin is solidified, pulverized and size-reduced to a powder form. The resin powder is blended with a minor amount of a particulate inert filler which is coated with a silicone resin curing catalyst and also with a minor amount of blowing agent (powder). The dry powder blend is then thermally fused for a closely-controlled, short duration, time at a temperature near the lower end of the blowing agent's gas-generating temperature range. The fused mass is ground to a powdered form to produce an expandable resin.
摘要翻译：制造可发性硅树脂的方法包括使大量存在于树脂中的硅烷醇（SiOH）基团与硅氧烷键和水反应，并将树脂加热到高于树脂熔点的温度，在该温度下，化学反应（缩合）出现硅烷醇基团。该反应增加了树脂的分子量，并减少了在随后的发泡步骤期间必须除去的水量，从而控制了可能发生的发泡速率和程度。将树脂固化，粉碎并减小至粉末形式。将树脂粉末与少量的用有机硅树脂固化催化剂和少量发泡剂（粉末）涂覆的惰性惰性填料混合。然后将干粉混合物在接近发泡剂产气温度范围下端的温度下进行热熔融以达到紧密控制的短时间。将熔融物质研磨成粉末形式以产生可发性树脂。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式