Title:
TWO-COMPONENT EPOXY ADHESIVE FOR LIQUIFIED NATURAL GAS CONTAINERS
Document Type and Number:
WIPO Patent Application WO/2024/092601
Kind Code:
A1
Abstract:
The present invention relates to a two-component epoxy resin composition, consisting of - a first component K1 comprising at least one epoxy resin A that contains on average more than one epoxy group per molecule; and - a second component K2 comprising a hardener B for epoxy resins, said hardener B comprising at least one polyamide and optionally at least one polyamidoamine; wherein the two-component epoxy resin composition contains between 2.8 and 10 wt. -%, preferably between 3.2 and 8 wt. -%, in particular between 4 and 7 wt. -%, based on the total weight of the composition, of at least one impact modifier I in either one or both of components K1 and K2; characterized in that said impact modifier I is a reaction product of at least one polymeric diol, at least one polyisocyanate, and cardanol; and that the total amount of polyamide and polyamidoamine accounts for at least 85 wt. -%, preferable at least 90 wt. -%of said hardener B. The two-component epoxy resin composition is highly suitable as structural adhesive for structural bonding in LNG or other cryogenic applications.
Inventors:
CHENG ADA (CN)
YUAN LUELLA (CN)
YUAN LUELLA (CN)
Application Number:
PCT/CN2022/129444
Publication Date:
May 10, 2024
Filing Date:
November 03, 2022
Export Citation:
Assignee:
SIKA TECH AG (CH)
CHENG ADA (CN)
CHENG ADA (CN)
International Classes:
C08G18/42; C08G18/48; C08G59/44; C08G59/46; C08G59/54; C08L63/00; C08L75/16; C09J163/00; C08K3/26; C08K3/36; C08K7/20
Domestic Patent References:
| WO2020016372A1 | 2020-01-23 | |||
| WO2020249741A1 | 2020-12-17 |
Foreign References:
| US20100310878A1 | 2010-12-09 | |||
| US20130037213A1 | 2013-02-14 | |||
| KR100689086B1 | 2007-03-02 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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