公开(公告)号：US20210061981A1

公开(公告)日：2021-03-04

申请号：US16960120

申请日：2018-12-20

Applicant: SIKA TECHNOLOGY AG

Inventor： Karsten FRICK ,  Sascha PASULA ,  Alina KELLER ,  Leslie WOLSCHLEGER ,  Elizabeth FARHAT

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

Abstract: 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：US20190002626A1

公开(公告)日：2019-01-03

申请号：US16124590

申请日：2018-09-07

Applicant: SIKA TECHNOLOGY AG

Inventor： Andreas KRAMER ,  Jürgen FINTER ,  Karsten FRICK ,  Urs RHEINEGGER ,  Jan Olaf SCHULENBURG

IPC: C08G18/79 ,  C09D163/00 ,  C08G18/69 ,  C08G18/12 ,  C08G18/28 ,  C08G59/68 ,  C08G18/48 ,  C08L63/00 ,  C08L75/04

Abstract: 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：US20220228033A1

公开(公告)日：2022-07-21

申请号：US17614134

申请日：2020-07-23

Applicant: SIKA TECHNOLOGY AG

Inventor： Karsten FRICK ,  Silvia SCHUMACHER ,  Sascha PASULA

IPC: C09J7/26 ,  C09J7/35 ,  C09J7/38

Abstract: An adhesive article including an expandable layer composed of a shape memory polymer composition including a first curable adhesive and at least one thermoplastic elastomer and a first adhesive layer covering at least a portion of the first major surface of the expandable layer, wherein the shape memory polymer composition is in a temporary deformed shape. Further, a method for producing an adhesive article, to a method for bonding two substrates to each other, and to a two-part bonded assembly including a first substrate and a second substrate and adhesive article between the substrates.

公开(公告)号：US20170204238A1

公开(公告)日：2017-07-20

申请号：US15324819

申请日：2015-07-09

Applicant: SIKA TECHNOLOGY AG

Inventor： Karsten FRICK ,  Dusko PARIPOVIC ,  Engin CIL ,  Leslie Michele WOLSCHLEGER ,  Jena MABILIA

IPC: C08J9/10 ,  B32B5/20 ,  B29C44/18 ,  C08L23/08 ,  B29C44/24

CPC classification number: C08J9/103 ,  B29C44/18 ,  B29C44/24 ,  B29K2023/083 ,  B29K2995/0002 ,  B29K2995/0015 ,  B29K2995/0082 ,  B32B5/20 ,  B32B2250/02 ,  B32B2266/0221 ,  B32B2307/102 ,  B32B2307/304 ,  B32B2307/546 ,  C08J9/0023 ,  C08J9/0061 ,  C08J9/10 ,  C08J2201/026 ,  C08J2201/03 ,  C08J2203/04 ,  C08J2323/04 ,  C08J2323/08 ,  C08J2325/08 ,  C08J2423/08 ,  C08K5/01 ,  C08K5/103 ,  C08K5/14 ,  C08K5/23 ,  C08K2003/2296 ,  C08L23/0853 ,  C08L23/0884 ,  C08L2203/14 ,  C08L2205/025 ,  C08L2205/035

Abstract: 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：US20190031853A1

公开(公告)日：2019-01-31

申请号：US16071046

申请日：2017-02-08

Applicant: SIKA TECHNOLOGY AG

Inventor： Karsten FRICK ,  Christian KRÜGER ,  Engin CIL

IPC: C08J9/10 ,  C08J9/00 ,  C08L75/04 ,  C08F210/02 ,  C08F218/08 ,  C08F220/18 ,  C08K5/14

Abstract: A thermally expandable composition, including at least one polymer P, cross-linkable by peroxide, at least one peroxide, preferably at least one acrylate, at least one blowing agent B, preferably at least one activator for the blowing agent, and at least one epoxide group terminated polymer of the formula (I), wherein Y represents a n-valent radical of a linear or branched polyurethane polymer terminated with isocyanate groups after the removal of the n terminal isocyanate groups, Z represents a (1+m)-valent radical of an aliphatic, cycloaliphatic, aromatic or araliphatic epoxide containing a primary or secondary hydroxyl group after the removal of the hydroxyl group and m epoxide groups, m represents an integer with a value of 1, 2, or 3, and n represents an integer with a value from 2 to 4.

公开(公告)号：US20170240687A1

公开(公告)日：2017-08-24

申请号：US15518375

申请日：2015-10-13

Applicant: SIKA TECHNOLOGY AG

Inventor： Karsten FRICK ,  Ulrich GERBER ,  Jürgen FINTER

IPC: C08G18/80 ,  C08G18/10 ,  C08J9/10 ,  C09J175/08 ,  C08G18/75 ,  C08G18/58 ,  C08G18/40 ,  C08G18/42 ,  C08G18/08

CPC classification number: C08G18/8016 ,  C08G18/10 ,  C08G18/14 ,  C08G18/4045 ,  C08G18/42 ,  C08G18/4216 ,  C08G18/4233 ,  C08G18/58 ,  C08G18/698 ,  C08G18/755 ,  C08G59/4028 ,  C08J9/103 ,  C08J9/105 ,  C08J9/32 ,  C08J2203/04 ,  C08J2375/04 ,  C08J2375/08 ,  C09J175/08 ,  C08G18/692 ,  C08G18/3215

Abstract: 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：US20130253094A1

公开(公告)日：2013-09-26

申请号：US13904542

申请日：2013-05-29

Applicant: SIKA TECHNOLOGY AG

Inventor： Karsten FRICK ,  Ulrich GERBER ,  Juergen FINTER ,  Andreas KRAMER

IPC: C08G65/26

CPC classification number: C08G65/2672 ,  C08G18/3848 ,  C08G59/686 ,  Y10T428/31515

Abstract: 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.

Abstract translation: 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。