公开(公告)号：US10752746B2

公开(公告)日：2020-08-25

申请号：US15324819

申请日：2015-07-09

申请人： SIKA TECHNOLOGY AG

发明人： Karsten Frick ,  Dusko Paripovic ,  Engin Cil ,  Leslie Michele Wolschleger ,  Jena Mabilia

IPC分类号： C08J9/10 ,  B32B5/20 ,  B29C44/18 ,  C08L23/08 ,  B29C44/24 ,  C08J9/00 ,  C08K5/01 ,  C08K5/14 ,  C08K5/103 ,  C08K5/23 ,  C08K3/22 ,  B29K23/00

摘要： Disclosed is a thermally expandable composition, comprising at least one polymer P, cross-linkable by peroxide, and between 1 wt.-% and 2.5 wt.-%, based on the total weight of the composition, of at least one acrylate A, and between 0.2 wt.-% and 2.5 wt.-%, based on the total weight of the composition, of at least one peroxide, and at least one blowing agent, characterised in that the equivalent ratio of said peroxide to said acrylate A is between 0.01 and 0.5, preferably between 0.13 and 0.41, and the weight ratio of said peroxide to said acrylate A is lower than 0.33 and said polymer P comprises or essentially consists of at least two polymers PI and P2, wherein PI exhibits a melt flow index (MFI) of between 100 and 200 g/10 min, and P2 exhibits a melt flow index of between 0.1 and 60 g/10 min, wherein MFI is determined by ASTM D1238. The thermally expandable composition shows excellent properties in terms of expansion stability and minimised buckling and is especially suitable for baffle and/or reinforcement elements, e.g. in automotive manufacturing.

公开(公告)号：US11591503B2

公开(公告)日：2023-02-28

申请号：US16957304

申请日：2019-01-25

申请人： SIKA TECHNOLOGY AG

发明人： Karsten Frick ,  Alina Keller

IPC分类号： C09J163/00 ,  B29C61/06 ,  C08L23/06 ,  C08L23/08 ,  C08L23/12 ,  C09J115/00 ,  C08C19/06

摘要： A composition includes an epoxy-based curable adhesive having at least one an epoxy resin modified acrylonitrile-butadiene copolymer and at least one thermoplastic elastomer. The at least one thermoplastic elastomer is present in the curable adhesive as a penetrating polymer network. Further, an expandable article is composed of the composition, a reinforcing element includes a support and an expandable article, a method for reinforces cavities of structural components, and the composition is used as a shape memory material.

公开(公告)号：US08859695B2

公开(公告)日：2014-10-14

申请号：US13904542

申请日：2013-05-29

申请人： Sika Technology AG

发明人： Karsten Frick ,  Ulrich Gerber ,  Juergen Finter ,  Andreas Kramer

IPC分类号： C08G59/68 ,  C08L63/00 ,  C08L63/02 ,  C08G65/26 ,  C08G18/38

CPC分类号： C08G65/2672 ,  C08G18/3848 ,  C08G59/686 ,  Y10T428/31515

摘要： A hem-curing epoxy resin composition, that includes an epoxy resin A having more than one epoxy group per molecule on average; a curing agent B for epoxy resins, which is activated at a temperature in a range of 100° C. to 220° C.; and an activator C for epoxy resin compositions, wherein activator C is a compound of formula (I), or is a reaction product between a compound of formula (Ia) and an isocyanate or an epoxide.

摘要翻译： 一种硫化环氧树脂组合物，其包含平均每分子具有多于一个环氧基的环氧树脂A; 用于环氧树脂的固化剂B，其在100℃至220℃的温度范围内活化; 和用于环氧树脂组合物的活化剂C，其中活化剂C是式（I）的化合物，或者是式（Ia）化合物与异氰酸酯或环氧化物之间的反应产物。

公开(公告)号：US20130020832A1

公开(公告)日：2013-01-24

申请号：US13627202

申请日：2012-09-26

申请人： SIKA Technology AG

发明人： Jürgen FINTER ,  Matthias Gössi ,  Karsten Frick ,  Norman Blank

IPC分类号： B60R99/00 ,  B32B37/06 ,  B32B37/12

CPC分类号： C09J175/04 ,  C08G18/10 ,  C08G2280/00 ,  C09J163/00 ,  C08G18/3256

摘要： A reinforcing element for reinforcement in cavities of structural components including a substrate made of a plastics material, which is at least partially coated with a metal; and a foamable, thermosetting structural adhesive which is applied to the metal coating of the substrate; or a thermosetting structural adhesive which is applied to the metal coating of the substrate and is designed as a shape memory material.

摘要翻译： 一种用于在结构部件的空腔中增强的加强元件，包括由至少部分地涂有金属的塑料材料制成的基底; 和可发泡的热固性结构粘合剂，其被施加到基底的金属涂层上; 或热固性结构粘合剂，其被施加到基底的金属涂层并被设计为形状记忆材料。

公开(公告)号：US11365310B2

公开(公告)日：2022-06-21

申请号：US16960120

申请日：2018-12-20

申请人： SIKA TECHNOLOGY AG

发明人： Karsten Frick ,  Sascha Pasula ,  Alina Keller ,  Leslie Wolschleger ,  Elizabeth Farhat

IPC分类号： C08J9/10 ,  C08L23/08 ,  C08J9/00

摘要： A thermally expandable composition includes at least one polymer P cross-linkable by peroxide, and at least one acrylate, and at least one peroxide, azodicarbonamide and a zinc compound. The thermally expandable composition leads to low odor formation and low ammonia emission during and after the foaming process. The thermally expandable composition further shows excellent properties in terms of expansion stability.

公开(公告)号：US11198754B2

公开(公告)日：2021-12-14

申请号：US16124590

申请日：2018-09-07

申请人： SIKA TECHNOLOGY AG

发明人： Andreas Kramer ,  Jürgen Finter ,  Karsten Frick ,  Urs Rheinegger ,  Jan Olaf Schulenburg

IPC分类号： C09J163/02 ,  C09J5/06 ,  C09J5/08 ,  C08G59/24 ,  C08G59/40 ,  C08G59/68 ,  C08G18/79 ,  C08G18/12 ,  C08G18/28 ,  C08G18/48 ,  C08G18/69 ,  C09D163/00 ,  C09J163/00 ,  C08L63/00 ,  C08L75/04

摘要： Heat-curing epoxy resin compositions are characterized by high impact strength, good storage stability, and a low curing temperature. The epoxy resin compositions are suitable for use as a construction shell adhesive and for producing structural foams. They can already be cured in so-called bottom-baking conditions. Furthermore, it has been found that the use of an accelerator of the formula (Ia) or (Ib) results in an increase of the impact strength of heat-curing epoxy resin compositions.

公开(公告)号：US10273326B2

公开(公告)日：2019-04-30

申请号：US15518375

申请日：2015-10-13

申请人： SIKA TECHNOLOGY AG

发明人： Karsten Frick ,  Ulrich Gerber ,  Jürgen Finter

IPC分类号： C08G18/10 ,  C08G18/80 ,  C08G18/69 ,  C08G18/75 ,  C08J9/32 ,  C08G18/42 ,  C08J9/10 ,  C08G59/40 ,  C08G18/08 ,  C08G18/40 ,  C08G18/58 ,  C09J175/08

摘要： What is described is a polymer which is a polyurethane polymer having blocked isocyanate groups or a reaction product of said polyurethane polymer with at least one epoxy resin, where the polyurethane polymer having blocked isocyanate groups is an addition product formed from at least one polyisocyanate and at least one polyester polyol, wherein the isocyanate groups of the addition product have been blocked by reaction with at least one aromatic compound having at least one hydroxyl group. Such a polymer is suitable as an impact modifier in epoxy resin compositions, especially when they are used as adhesives or structural foams. The polymer improves the corrosion resistance and vertical expansion of the epoxy resin composition.

公开(公告)号：US20150252165A1

公开(公告)日：2015-09-10

申请号：US14434925

申请日：2013-11-06

申请人： SIKA TECHNOLOGY AG

发明人： Karsten Frick ,  Nicolae Bordeanu ,  Frank Hoefflin

IPC分类号： C08J9/16 ,  B29C44/12 ,  C08J9/00 ,  C08J9/12 ,  C08J9/06

CPC分类号： C08J9/16 ,  B29C44/128 ,  B29C44/18 ,  B29K2063/00 ,  B29K2105/0005 ,  B29K2105/04 ,  B29K2509/08 ,  C08J9/0066 ,  C08J9/0085 ,  C08J9/06 ,  C08J9/12 ,  C08J9/228 ,  C08J9/32 ,  C08J2201/026 ,  C08J2203/184 ,  C08J2363/00 ,  C08J2363/10 ,  C08J2491/06 ,  C08L63/00 ,  Y10T428/1372

摘要： The present invention relates to expandable compositions in the form of granular materials that are based on epoxy resins with a content of binders and curing agents for curing the epoxy resin. Corresponding compositions can be readily introduced into hollow bodies, for example, into sticks or roof supports and expanded to a foam by heating the composition and cured. This results in hollow bodies filled with foam that are distinguished by significantly improved mechanical properties compared to comparable hollow bodies without a foam filling. At the same time, the granular materials according to the invention can be very readily processed without a complex and expensive two-component injection-molding process being necessary.

摘要翻译： 本发明涉及基于具有粘合剂含量的环氧树脂和用于固化环氧树脂的固化剂的颗粒材料形式的可发性组合物。 相应的组合物可以容易地引入中空体，例如，引入棒或屋顶支撑体，并通过加热组合物并固化而膨胀成泡沫。 这导致填充有泡沫的中空体，与具有泡沫填充的可比较的空心体相比，其特征在于显着改善的机械性能。 同时，根据本发明的颗粒材料可以非常容易地加工，而不需要复杂和昂贵的双组分注射成型方法。