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公开(公告)号：WO2021168041A1
公开(公告)日：2021-08-26
申请号：PCT/US2021/018464
申请日：2021-02-18
Applicant: DOW SILICONES CORPORATION , DOW GLOBAL TECHNOLOGIES LLC
Inventor： MORLEY, Timothy , PATANKAR, Kshitish A. , TUFT, Bradley W. , PARSONS, Thomas J. , SHAWL, David , MATTSON, Kaila M. , IRKHA, Veronika , CLARK, Torrey , KATSOULIS, Dimitris , SONNENSCHEIN, Mark F.
Abstract: This disclosure relates to a method for the in-situ encapsulation and/or insulation of piping, such as underground piping, particularly underground piping carrying high temperature (e.g. >120o C) fluids, such as steam using silicone-based compositions such as liquid silicone rubber materials and/or silicone foams. This may be done by inserting a hose into a pipe cavity so that a first end of the hose is remotely positioned next to the pipe and a second end of the hose is attached to a pumping system wherein a silicone composition is pumped through the hose and into the cavity surrounding from the remote first end of the tubing at a first predefined rate, the hose is gradually withdrawn from the cavity at a second predefined rate and the silicone material is allowed to cure and become rigid, thereby encapsulating and/or insulating the pipe.
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公开(公告)号：WO2017074758A1
公开(公告)日：2017-05-04
申请号：PCT/US2016/057636
申请日：2016-10-19
Applicant: DOW GLOBAL TECHNOLOGIES LLC
CPC classification number: C08G18/10 , C08G18/4219 , C08G18/4829 , C08G18/485 , C08G18/7664 , C08G2101/0025 , C08G2101/005 , C08G2105/02 , C08G18/42
Abstract: A formulation system contains: (a) a pre-polymer reaction product of a polymeric isocyanate and a polyether polyol, where: (i) the polymeric isocyanate contains five weight-percent or more methylene diphenyl diisocyanate; (ii) the polymeric isocyanate has a functionality of 3.0 or less; (iii) the polyether polyol is present in the pre-polymer at a concentration of one to 25 weight-percent; (iv) the polyol has an equivalent weight of 50 to 500 grams per equivalent; (v) the -NCO concentration of the pre-polymer is 15 to 31 weight-percent; (vi) the pre-polymer is free of isocyanate trimers; (b) a polyester polyol component containing 10 to 25 weight-percent of free glycol; and (c) a blowing agent that contains less than five weight-percent water; where the ratio of pre-polymer and polyester result in foam having a trimer content of 12 to 22 weight-percent, and an -NCO index of more than 300 and less than 700.
Abstract translation: 制剂体系包含：（a）聚合异氰酸酯和聚醚多元醇的预聚物反应产物，其中：（i）聚合异氰酸酯含有5重量％或更多的亚甲基二苯基二异氰酸酯; （ii）聚合异氰酸酯具有3.0或更小的官能度; （iii）聚醚多元醇以1至25重量百分比的浓度存在于预聚物中; （iv）多元醇的当量重量为每当量50-500克; （v）预聚物的-NCO浓度为15至31重量％; （vi）预聚物不含异氰酸酯三聚体; （b）含有10-25重量％游离二醇的聚酯多元醇组分; 和（c）含有小于5重量百分比的水的发泡剂; 其中预聚物和聚酯的比例导致三聚物含量为12-22重量％的泡沫和-NCO指数大于300且小于700。
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公开(公告)号：WO2023003787A1
公开(公告)日：2023-01-26
申请号：PCT/US2022/037411
申请日：2022-07-18
Applicant: DOW GLOBAL TECHNOLOGIES LLC , DOW SILICONES CORPORATION
Inventor： LAI, Shuqi , HENNING, Jody J. , WEI, Yanhu , PATANKAR, Kshitish A. , SONNENSCHEIN, Mark F.
Abstract: Silicone foam compositions for forming foamed silicone elastomers are described herein, together with the respective foamed silicone elastomers formed therefrom and to methods of making such compositions and foamed silicone elastomers. The silicone rubber foam composition comprising: (a) one or more organopolysiloxane polymers having an average of at least two epoxide groups per molecule; (b) a Lewis acid catalyst, (c) one or more surfactants and optionally (d) a physical blowing agent. The foamed silicone elastomers are prepared by either mechanically foaming components (a), (b) and (c); or by introducing a physical blowing agent (d); and causing foaming by physical blowing.
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公开(公告)号：WO2014052032A1
公开(公告)日：2014-04-03
申请号：PCT/US2013/059570
申请日：2013-09-13
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： ZHU, Lingbo , COSTEUX, Stéphane , PATANKAR, Kshitish A. , MOORE, Jonathan D.
CPC classification number: C08J9/04 , B29C44/348 , B29K2025/06 , B29K2033/08 , B29K2101/10 , B29K2105/041 , B29K2995/0007 , B29K2995/0015 , C08J9/0023 , C08J9/0042 , C08J9/122 , C08J2203/00 , C08J2203/06 , C08J2205/042 , C08J2325/06 , C08J2325/12 , C08J2333/06 , C08J2333/12
Abstract: Prepare a thermoplastic polymer foam having a porosity of 70% or more and at least one of: (i) an average cell size of 200 nanometers or less; and (ii) a nucleation density of at least 1x1015 effective nucleation sites per cubic centimeter of foamable polymer composition not including blowing agent using a foamable polymer composition containing a thermoplastic polymer selected from styrenic polymer and (meth)acrylic polymers, a blowing agent comprising at least 20 mole-percent carbon dioxide based on moles of blowing agent and an additive having a Total Hansen Solubility Parameter that differs from that of carbon dioxide by less than 2 and that is present at a concentration of 0.01 to 1.5 weight parts per hundred weight parts thermoplastic polymer.
Abstract translation: 制备孔隙率为70％以上且至少其中之一的热塑性聚合物泡沫体：（i）平均泡孔尺寸为200纳米以下; 和（ii）使用包含选自苯乙烯聚合物和（甲基）丙烯酸类聚合物的热塑性聚合物的可发泡聚合物组合物，不包括发泡剂的每立方厘米可发泡聚合物组合物的至少1×1015有效成核位点的成核密度， 基于发泡剂的摩尔数和至少二氧化碳的总Hansen溶解度参数的添加剂的二氧化碳的至少20摩尔％的二氧化碳小于2，并且以每100重量份的0.01至1.5重量份的浓度存在 热塑性聚合物。
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5.发明申请
公开(公告)号：WO2020068494A1
公开(公告)日：2020-04-02
申请号：PCT/US2019/051572
申请日：2019-09-17
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： PATANKAR, Kshitish A. , RAGHURAMAN, Arjun , WILLUMSTAD, Thomas P. , SONNENSCHEIN, Mark F. , HENNING, Jody , SPINNEY, Heather A. , WILSON, David R. , MUKHOPADHYAY, Sukrit
Abstract: Hydroxyl-containing copolymers of butylene oxide and ethylene oxide having a hydroxyl equivalent weight of at least 150, an average of 1.8 to 6 hydroxyl groups per molecule of which hydroxyl groups at least 70% are primary hydroxyl groups and an oxyethylene content of no greater than 10% by weight based on the weight of the copolymer, are useful for making polyurethanes. These polyols are characterized by high reactivity and fast curing times. Polyurethanes made using these polyols have excellent mechanical properties and are highly hydrophobic.
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Patent Agency Ranking
公开(公告)号：WO2020068493A1
公开(公告)日：2020-04-02
申请号：PCT/US2019/051571
申请日：2019-09-17
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： PATANKAR, Kshitish A. , RAGHURAMAN, Arjun , WILLUMSTAD, Thomas P. , SONNENSCHEIN, Mark F. , HENNING, Jody , SPINNEY, Heather A. , WILSON, David R. , MUKHOPADHYAY, Sukrit , HEATH, William H.
Abstract: Polyurethanes are made in a one-shot process from one or more polyols having a hydroxyl equivalent weight of at least 350, wherein at least 50% of the weight of iii) is a hydroxyl-containing polymer of propylene oxide, the hydroxyl-containing polymer of propylene oxide having a hydroxyl equivalent weight of at least 350, an average of 1.8 to 3 hydroxyl groups per molecule of which hydroxyl groups 40 to 70% are primary hydroxyl groups, an oxyethylene content of no greater than 10% by weight based on the weight of the polymer and a polydispersity of 1.175 or less. The polyurethanes exhibit excellent mechanical properties, are highly hygroscopic and cured rapidly.
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公开(公告)号：WO2023018632A1
公开(公告)日：2023-02-16
申请号：PCT/US2022/039669
申请日：2022-08-08
Applicant: DOW GLOBAL TECHNOLOGIES LLC , DOW SILICONES CORPORATION
Inventor： PATANKAR, Kshitish A. , NG, Sze-Sze , MATTSON, Kaila , MORLEY, Timothy , HENNING, Jody J. , PAULIK, Nicholas A. , KINSMAN, Chris
Abstract: This disclosure relates to continuous methods for making foamed silicone products using at least one blowing agent which is a non-flammable and/or inert gas at 0oC (zero oC) and atmospheric pressure (approximately 101,325 Pa). Multiple-part silicone foam compositions used for forming foamed silicone products in said methods, and the resulting foamed silicone product formed from such compositions are also described. The blowing agent may be carbon dioxide, air or nitrogen.
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公开(公告)号：WO2023003788A1
公开(公告)日：2023-01-26
申请号：PCT/US2022/037412
申请日：2022-07-18
Applicant: DOW GLOBAL TECHNOLOGIES LLC , DOW SILICONES CORPORATION
Inventor： LAI, Shuqi , HENNING, Jody J. , WEI, Yanhu , PATANKAR, Kshitish A. , SONNENSCHEIN, Mark F.
Abstract: This disclosure relates to silicone foam compositions for forming foamed silicone elastomers, the respective foamed silicone elastomers formed therefrom and to methods of making such compositions and foamed silicone elastomers. The silicone rubber foam composition comprises the (a) one or more organosilicon compounds having an average of at least two silicon bonded alkoxy groups per molecule selected from one or more silicone resins and/or silicone resin intermediates; (b) a Lewis acid catalyst; (c) one or more surfactants; and (d) one or more organopolysiloxane polymers having an average of at least two, alternatively at least three silicon bonded hydrogen groups per molecule.
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公开(公告)号：WO2018031270A1
公开(公告)日：2018-02-15
申请号：PCT/US2017/044585
申请日：2017-07-31
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： STEWART, Gregory T. , KALINOWSKI, Matthew J. , PATANKAR, Kshitish A. , REN, Dakai , CRAIN, Steven P. , HERST, Ernest J. , CHENEY, Daniel W. , OLSON, Jeffrey K. , CONGLETON, Tyler G.
Abstract: A fire retardant article has a wood-based material with a polyisocyanurate foam article attached thereto, where the polyisocyanurate foam article covers 90% or more of the exposed portion of the wood-based material, has a thickness greater than 1.8 centimeters, a foam core having a density of 28-128 kg/m 3 , a trimer concentration characterized by at least one of (i) a trimer level in a range of 12-25 weight-percent and (ii) a molar ratio of trimer to sum of urethane and urea in a range of 1-8, a phosphorous concentration of at least 0.3 wt%, a combined concentration of phosphorous and bromine of at least 0.5 wt%, and a vapor permeable and non-combustible facer on at least one primary surface of the foam core.
Abstract translation: 阻燃制品具有附着有聚异氰脲酸酯泡沫制品的木基材料，其中聚异氰脲酸酯泡沫制品覆盖木质材料的暴露部分的90％或更多，其厚度 大于1.8厘米的泡沫芯，密度为28-128千克/米3的泡沫芯，三聚体浓度特征在于以下至少一种：（i）三聚体水平在12-25重量 （ii）氨基甲酸酯和脲的三聚体与总量的摩尔比为1-8，磷浓度至少为0.3重量％，磷和溴的组合浓度为至少0.5重量％，和 在泡沫芯体的至少一个主表面上的可透蒸汽且不可燃的面罩。
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10.发明申请
公开(公告)号：WO2014078215A1
公开(公告)日：2014-05-22
申请号：PCT/US2013/069373
申请日：2013-11-11
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： KING, Bruce A. , PATANKAR, Kshitish A. , COSTEUX, Stéphane , JEON, Hyun K.
IPC: C08J9/00
CPC classification number: C08J9/122 , C08J9/0061 , C08J9/008 , C08J2203/06 , C08J2205/044 , C08J2205/046 , C08J2333/12 , C08J2383/06 , C08J2425/08 , C08J2433/12
Abstract: A polymeric foam article with a polymer matrix defining multiple cells therein has a polymer component with a first polymer that is a polyhedral oligomeric silsesquioxane grafted polymer that has a weight-average molecular weight of two kilograms per mole or higher and 200 kilograms per mole or lower.
Abstract translation: 具有在其中限定多个细胞的聚合物基质的聚合物泡沫制品具有聚合物组分，其具有第一聚合物，其是多面体低聚倍半硅氧烷接枝聚合物，其重均分子量为每摩尔摩尔或更高200千克/摩尔或更低 。
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