公开(公告)号：US09567424B2

公开(公告)日：2017-02-14

申请号：US14440300

申请日：2013-11-07

Applicant: SIKA TECHNOLOGY AG

Inventor： Christian Krüger ,  Jan Olaf Schulenburg ,  David Hofstetter ,  Tina Voci

IPC: C08G18/10 ,  C08G18/83 ,  C08G18/84 ,  C08L63/00 ,  C08L63/02 ,  C08L63/04 ,  C08L75/04 ,  C08L75/06 ,  C08L75/08 ,  C09J163/00 ,  C09J163/02 ,  C09J163/04 ,  C09J175/04 ,  C09J175/06 ,  C09J175/08 ,  C08G18/12 ,  C08G18/75 ,  C08G59/06 ,  C08G59/28 ,  C08G59/32

CPC classification number: C08G18/10 ,  C08G18/12 ,  C08G18/755 ,  C08G18/831 ,  C08G18/84 ,  C08G59/066 ,  C08G59/28 ,  C08G59/3227 ,  C08L21/00 ,  C08L63/00 ,  C08L75/04 ,  C08L75/06 ,  C08L75/08 ,  C09J163/00 ,  C09J163/04 ,  C09J175/04 ,  C09J175/06 ,  C09J175/08 ,  C08G18/2845 ,  C08G18/58

Abstract: A method is described for producing liquid rubber containing an impact-resistance modifier terminated by epoxy groups, the method including the reaction of an isocyanate-terminated prepolymer with an epoxy resin, which includes an epoxy compound including a primary or secondary hydroxyl group, in the presence of a compound selected from anhydrides, ketones and aldehydes as glycol scavengers, wherein the isocyanate-terminated prepolymer, the epoxy resin and the glycol scavenger are mixed with one another, or the epoxy resin is reacted with the glycol scavenger, before they are mixed with the isocyanate-terminated prepolymer. Gelling in the reaction mixture is avoided by the method. The resulting products are suitable for improving the impact resistance of epoxy resin compositions, particularly one-component or two-component epoxy resin adhesives.

Abstract translation: 描述了一种用于生产含有由环氧基封端的耐冲击改性剂的液体橡胶的方法，该方法包括异氰酸酯封端的预聚物与环氧树脂的反应，该环氧树脂包括含有伯或仲羟基的环氧化合物， 将选自酸酐，酮和醛的化合物作为二醇清除剂的存在，其中异氰酸酯封端的预聚物，环氧树脂和二醇清除剂彼此混合，或环氧树脂在二元醇清除剂混合之前与二醇清除剂反应 与异氰酸酯封端的预聚物。 通过该方法可以避免反应混合物中的凝胶化。 所得产品适用于提高环氧树脂组合物，特别是单组分或双组分环氧树脂粘合剂的耐冲击性。

公开(公告)号：US20150284608A1

公开(公告)日：2015-10-08

申请号：US14440418

申请日：2013-11-08

Applicant: SIKA TECHNOLOGY AG

Inventor： David Hofstetter ,  Tina Voci ,  Jan Olaf Schulenburg

IPC: C09J163/00 ,  C08K3/36

CPC classification number: C09J163/00 ,  C08G59/4021 ,  C08G59/5026 ,  C08G59/504 ,  C08G59/56 ,  C08G2650/50 ,  C08K3/36

Abstract: The invention relates to a curing agent component for use in a two-component epoxy adhesive made of a component A including an epoxy resin and a curing agent component B, wherein the curing agent component B1) includes at least one aliphatic alicyclic polyether amine with at least 2 amino groups and B2) at least one polyamine selected from a phenalkylamine or an aliphatic polyether amine, containing at least one alicyclic alkoxylate segment and at least one cycloaliphatic segment, and optionally B3) at least one amine compound selected from an amine-terminated rubber, an amine-terminated poly(tetramethylene ether glycol) and an amine-terminated poly(tetramethylene ether glycol)-poly(propylene glycol) copolymer.

Abstract translation: 本发明涉及一种用于由包含环氧树脂和固化剂组分B的组分A制成的双组分环氧粘合剂中的固化剂组分，其中固化剂组分B1）包括至少一种脂族脂环族聚醚胺，其具有 至少2个氨基和B2）至少一种选自苯烷基胺或脂族聚醚胺的多胺，其含有至少一个脂环族烷氧基化物链段和至少一个脂环族链段，以及任选地B3）至少一种胺化合物，其选自胺封端 橡胶，胺封端的聚（四亚甲基醚二醇）和胺封端的聚（四亚甲基醚二醇） - 聚（丙二醇）共聚物。

公开(公告)号：US10214611B2

公开(公告)日：2019-02-26

申请号：US14442221

申请日：2013-11-12

Applicant: SIKA TECHNOLOGY AG

Inventor： Tina Voci ,  David Hofstetter ,  Christian Krüger ,  Jan Olaf Schulenburg

IPC: C08G18/40 ,  C08G18/48 ,  C08G18/69 ,  C08G18/12 ,  C09J175/04 ,  C08G18/75 ,  C09J9/00 ,  C09J11/08 ,  C09J163/00

Abstract: An epoxy group-terminated impact modifier is described, comprising the reaction product of a) two or more polyols, b) one or more polyisocyanates, and c) at least one epoxy resin comprising a primary or secondary hydroxy group-containing epoxy compound, wherein the polyols comprise a1) at least one polyether polyol and a2) at least one OH-terminated rubber, wherein the weight ratio of polyether polyol to OH-terminated rubber is in the range from 7:3 to 2:8; an isocyanate-terminated prepolymer as possible intermediate product is described; furthermore a method for producing same is described. The products obtained are suitable for improving the impact resistance of epoxy resin compositions, in particular of 1K or 2K epoxy resin adhesives.

公开(公告)号：US11198754B2

公开(公告)日：2021-12-14

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: 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

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.