-
公开(公告)号：US20150315330A1
公开(公告)日：2015-11-05
申请号：US14648626
申请日：2013-12-18
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： William Heath , Phillip S. Athey , Nathan Wilmot , Harshad M. Shah , Kamesh R. Vyakaranam , Nicole Knight , Adam C. Colson
IPC: C08G59/14
Abstract: Elastomers are prepared from a reaction mixture that contains a polyene compound, an epoxy resin, a thiol curing agent and a basic catalyst. The polyene compound has an average of at least two groups containing aliphatic carbon-carbon double bonds capable of reaction with a thiol group. At least one of said aliphatic carbon-carbon double bonds is separated from each other said aliphatic carbon-carbon double bond by an aliphatic spacer group having a weight of at least 500 atomic mass units. These elastomers are typically phase-separated materials having good elongation and tensile properties.
Abstract translation: 弹性体由含有多烯化合物，环氧树脂，硫醇固化剂和碱性催化剂的反应混合物制备。 多烯化合物平均具有至少两个能够与硫醇基反应的脂族碳 - 碳双键的基团。 所述脂肪族碳 - 碳双键中的至少一个通过具有至少500原子质量单位的重量的脂肪族间隔基彼此分离，所述脂肪族碳 - 碳双键。 这些弹性体通常是具有良好伸长率和拉伸性能的相分离材料。
-
公开(公告)号：US20180043584A1
公开(公告)日：2018-02-15
申请号：US15554906
申请日：2016-03-18
Applicant: Dow Global Technologies LLC
Inventor： Jie Feng , Mark W. Brown , Xue Chen , Pankaj Gupta , Dwight D. Latham , Liangkai Ma , Michael T. Malanga , Rujul M. Mehta , Kamesh R. Vyakaranam , Jeffrey D. Wenzel , Jeffery D. Zawisza
CPC classification number: B29C39/32 , B29C39/10 , B29C45/0001 , B29C45/14622 , B29L2023/225 , F16L59/161 , F16L59/163
Abstract: The present invention relates to a process to reduce internal stresses in insulation molded onto complex pipes, preferably complex subsea pipe, to reduce cracking in the molded insulation. Insulation materials applies to complex pipes comprising branches, i.e., valves, and the like, may be susceptible to cracking at, or near where the branch connects to the pipe as the coating of insulation material cures or hardens. The process of the present invention aims to reduce post molded cracking by reducing molded in stress at the branch/pipe junction. This is accomplished by providing a preform at or near a branch/pipe junction prior to applying the coating of insulation material.
-
Patent Agency Ranking
公开(公告)号：US09758615B2
公开(公告)日：2017-09-12
申请号：US14648626
申请日：2013-12-18
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： William Heath , Phillip S. Athey , Nathan Wilmot , Harshad M. Shah , Kamesh R. Vyakaranam , Nicole Knight , Adam C. Colson
Abstract: Elastomers are prepared from a reaction mixture that contains a polyene compound, an epoxy resin, a thiol curing agent and a basic catalyst. The polyene compound has an average of at least two groups containing aliphatic carbon-carbon double bonds capable of reaction with a thiol group. At least one of said aliphatic carbon-carbon double bonds is separated from each other said aliphatic carbon-carbon double bond by an aliphatic spacer group having a weight of at least 500 atomic mass units. These elastomers are typically phase-separated materials having good elongation and tensile properties.
-
公开(公告)号：US20160168416A1
公开(公告)日：2016-06-16
申请号：US14897744
申请日：2014-09-04
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： Venkat S Minnikanti , Marcus Pfarherr , Eva-Maria Michalski , Kamesh R. Vyakaranam , William H. Heath , Kwanho Chang , Rajesh H. Turakhia , Larissa Falsarella , Adam C. Colson
IPC: C09D163/00 , E04C2/24 , E04B5/02 , E04C2/26
CPC classification number: C09D163/00 , C08G59/066 , C08G59/50 , E04C2/24 , E04C2/26 , E04C2/50 , C08L63/00 , C08L75/16
Abstract: A flooring coating composition includes a coating agent that is a reaction product of an epoxy based formulation, the epoxy based formulation being at least one of an epoxy prepolymer formulation, an epoxy-silane hybrid formulation, and an epoxy thiol acrylate formulation. The coating agent in a cured state exhibits a first tan delta peak between a first temperature range of 75 C to 0 C and a second tan delta peak between a second temperature range of 20 C and 75 C, according to a tan delta plot over a range of temperatures. A value of the first tan delta peak and a value of the second tan delta peak each represents a ratio of a loss modulus of the coating agent and a storage modulus of the coating agent at a specific temperature within the range of temperatures, as measured according to dynamic mechanical thermal analysis. The values of the first and the second tan delta peaks are from 0.10 to 0.80.
Abstract translation: 地板涂料组合物包括作为环氧基配方的反应产物的涂层剂，环氧基配方是环氧预聚物配方，环氧硅烷混合配方和环氧硫醇丙烯酸酯配方中的至少一种。 处于固化状态的涂层剂在75℃至0℃的第一温度范围和在20℃至75℃的第二温度范围内的第二tanδ峰之间呈现第一tanδ峰，根据 温度范围 第一tanδ峰的值和第二tanδ峰的值各自表示涂布剂的损耗模量与涂布剂在特定温度下在温度范围内的储能模量的比率，如根据 进行动态机械热分析。 第一和第二tanδ峰的值为0.10至0.80。
-
公开(公告)号：US20170275427A1
公开(公告)日：2017-09-28
申请号：US15505661
申请日：2015-11-24
Applicant: Dow Global Technologies LLC
Inventor： Asjad Shafi , Krishnan Karunakaran , Kamesh R. Vyakaranam
CPC classification number: C08J5/04 , B29C53/58 , B29C2035/0827 , B29D23/001 , C08J3/243 , C08J2363/10
Abstract: A multistage filament winding process for manufacturing a composite article using a dual chemistry formulation including the steps of (a) providing a dual chemistry formulation containing components to effectuate dual cure of the formulation; (b) winding fibers on a liner or on a mandrel; (c) impregnating the wound fibers of step (b) with the dual chemistry formulation; (d) activating a first reaction (A) by UV or thermal-free radical initiation sufficient to form first macroscopic gels and to allow the first macroscopic gels to phase separate from the remaining substantially unreacted components in the formulation; (e) optionally, activating a second reaction by heating through IR lamps or other heating apparatus and controlling the second reaction sufficient to form second macroscopic gels subsequent to the formation of the first macroscopic gels which have gelled and phase separated in the formulation; (f) repeating steps (a)-(d) until a composite article having a predetermined thickness is formed; and (g) heating the formed composite article of step (f) sufficient to form a final composite article product having a predetermined glass transition temperature; a cured thermoset article prepared by the above process; and a process for manufacturing spoolable pipe.
-
公开(公告)号：US20150011722A1
公开(公告)日：2015-01-08
申请号：US14496269
申请日：2014-09-25
Applicant: Dow Global Technologies LLC
Inventor： Kamesh R. Vyakaranam , Ling Zhang , William A. Koonce , Juan Carlos Medina , Ganesh Kailasam , Rajat Duggal , Nathan Wilmot
CPC classification number: C08G18/222 , C08G18/168 , C08G18/2063 , C08G18/244 , C08G18/289 , C08G18/3893 , C08G18/4825 , C08G18/718 , C08G18/7621 , C08G18/7671 , C08J5/18 , C08J2375/08
Abstract: Embodiments of the invention provide for methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule. The method comprises providing a polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, adding to the polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction to form a composition comprising hydrosilylated polyoxyalkylene polymers, reacting the hydrosilylated polyoxyalkylene polymers with at least one isocyanate in the presence of a first tin-free catalyst to form an isocyanate reacted hydrosilylated polymer, and optionally reacting the isocyanate reacted hydrosilylated polymer with a polyol having a nominal functionality of at least 2 to form a polyol reacted crosslinkable silane-terminated polymer.
Abstract translation: 本发明的实施方案提供了制备包含在每个分子中具有至少一个可交联甲硅烷基的可交联的硅烷端基聚合物的组合物的方法。 该方法包括在每个分子中提供具有至少一个不饱和基团和至少一个醇羟基的聚合物，向该聚合物中加入每个分子中具有氢 - 硅键和交联性甲硅烷基的化合物和氢化硅烷化催化剂从而携带 进行氢化硅烷化反应以形成包含氢化硅烷化聚氧化烯聚合物的组合物，在第一无锡催化剂存在下使氢化硅烷化聚氧化烯聚合物与至少一种异氰酸酯反应，以形成异氰酸酯反应的氢化硅烷化聚合物，并任选地使异氰酸酯反应的硅烷化聚合物与 具有至少2的标称官能度的多元醇以形成多元醇反应的可交联的硅烷封端的聚合物。
-
7.发明申请公开(公告)号：US20140100348A1
公开(公告)日：2014-04-10
申请号：US14119072
申请日：2012-06-14
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： Kamesh R. Vyakaranam , Ling Zhang , Venkat S. Minnikanti , Rajat Duggal , William A. Koonce , Amarnath Singh , Phillip S. Athey
IPC: C08G18/10
CPC classification number: C08G18/10 , C08G18/289 , C08G18/718 , C08G18/7621 , C08G2190/00 , C08G18/4825 , C08G18/4829
Abstract: Methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one cross-linkable silyl group in each molecule are provided. The method may comprise providing a polymer having at least one unsaturated group and at least one alcohol hydroxyl group in each molecule and having a number average molecular weight between about 100 and about 5,000, adding to the polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction to form a composition comprising hydrosilylated polymers, wherein the hydrosilylation reaction has a hydrosilylation efficiency greater than 50% as determined by 1H-NMR, capping the hydrosilylated polymers by adding the hydrosilylated polymer to at least one isocyanate at an index of between about 100 and about 250, and reacting the isocyanate capped hydrosilylated polymer with a polyol having a nominal functionality of at least 2 to form the composition comprising a crosslinkable silane-terminated polymer.
Abstract translation: 提供了包含在每个分子中具有至少一个可交联甲硅烷基的可交联硅烷封端的聚合物的组合物的方法。 该方法可以包括提供在每个分子中具有至少一个不饱和基团和至少一个醇羟基并且数均分子量在约100和约5,000之间的聚合物，向聚合物中加入具有氢 - 硅键的化合物和 每个分子中的可交联甲硅烷基和氢化硅烷化催化剂，由此进行氢化硅烷化反应以形成包含氢化硅烷化聚合物的组合物，其中氢化硅烷化反应的氢化硅烷化效率大于50％，如通过1 H-NMR确定的，氢化硅烷化聚合物由 将氢化硅烷化聚合物以约100至约250的指数加入到至少一种异氰酸酯中，并使异氰酸酯封端的硅烷化聚合物与标称官能度至少为2的多元醇反应，以形成包含可交联硅烷封端的聚合物的组合物。
-
-
-
-
-
-
Search Results
7
records
(took 0.016 seconds)
