Abstract: Suggested is a urea urethane with improved rheological properties, obtainable or obtained according to a process encompassing or consisting of the following steps: (a) providing a monohydroxyl compound; (b) providing a diisocyanate compound; (c) reacting said monohydroxyl compound and said diisocyanate compound to form a pre-polymer; (d) reacting said pre-polymer with a diamine compound in the presence of a lithium salt, wherein said monohydroxyl compound and said diisocyanate compound are reacted in a molar ratio of 1:1.1 to 1:1.45.
Type:
Grant
Filed:
March 22, 2018
Date of Patent:
June 7, 2022
Assignee:
CLiQ Swisstech B.V.
Inventors:
Daniel Haveman, René Stèphan Bouwman, René Marcel La Crois
Abstract: Suggested is a method for modifying the rheology of a casting resin and/or coating composition, comprising the following steps: providing a composition comprising at least one monomer capable of forming a casting resin or coating upon polymerisation; and adding to said composition a working amount of a urea urethane obtained under specific conditions as a thixotropic agent.
Type:
Grant
Filed:
September 24, 2020
Date of Patent:
May 31, 2022
Assignee:
CLiQ SwissTech B.V.
Inventors:
Detlef Van Pey, René Stèphan Bouwman, Daniel Haveman
Abstract: Suggested is a urea urethane with improved rheological properties, obtainable or obtained according to a process encompassing or consisting of the following steps: (a) providing a monohydroxyl compound; (b) providing a diisocyanate compound; (c) reacting said monohydroxyl compound and said diisocyanate compound to form a pre-polymer; (d) reacting said pre-polymer with a diamine compound, Wherein said pre-polymer and said diamine are reacted in the presence of a surfactant.
Type:
Grant
Filed:
September 14, 2018
Date of Patent:
January 5, 2021
Assignee:
CliQ SwissTech B.V.
Inventors:
Daniel Haveman, Adrianus Peter Van Veen, Neeltje Wijma
Abstract: A casting resin composition comprising or consisting of: (a) a monomer capable of forming a casting resin upon polymerisation and (b) at least one thixotropic agent wherein said at least one thixotropic agent is a urea urethane.
Type:
Grant
Filed:
November 9, 2018
Date of Patent:
October 20, 2020
Assignee:
CLIQ SWISSTECH B.V.
Inventors:
Daniel Haveman, Detlef Van Pey, René Stèphan Bouwman