The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2021
Filed:
Jul. 23, 2020
Applicant:
Ddp Specialty Electronic Materials Us, Llc, Wilmington, DE (US);
Inventors:
Andreas Lutz, Freienbach, CH;
Daniel Schneider, Freienbach, CH;
Jeannine Flueckiger, Freienbach, CH;
Assignee:
DDP SPECIALTY ELECTRONIC MATERIALS US, LLC, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J 163/04 (2006.01); C08G 59/40 (2006.01); C08G 18/10 (2006.01); C09J 163/00 (2006.01); C08G 65/333 (2006.01); C08G 18/80 (2006.01); A61N 1/05 (2006.01); C08G 59/68 (2006.01); C08G 18/12 (2006.01); C08G 18/48 (2006.01); A61B 5/00 (2006.01); C08G 18/69 (2006.01); C08G 18/67 (2006.01); C08L 75/08 (2006.01); C08G 18/73 (2006.01); A61B 5/24 (2021.01); A61B 5/296 (2021.01); C08G 18/24 (2006.01); C08G 18/32 (2006.01); C08G 18/62 (2006.01); C08G 18/75 (2006.01); C01B 32/182 (2017.01);
U.S. Cl.
CPC ...
C09J 163/04 (2013.01); A61B 5/24 (2021.01); A61B 5/296 (2021.01); A61B 5/6877 (2013.01); A61B 5/6882 (2013.01); A61N 1/0551 (2013.01); C08G 18/10 (2013.01); C08G 18/12 (2013.01); C08G 18/24 (2013.01); C08G 18/3215 (2013.01); C08G 18/4854 (2013.01); C08G 18/6204 (2013.01); C08G 18/675 (2013.01); C08G 18/698 (2013.01); C08G 18/73 (2013.01); C08G 18/755 (2013.01); C08G 18/8067 (2013.01); C08G 59/4021 (2013.01); C08G 59/686 (2013.01); C08G 65/33348 (2013.01); C08L 75/08 (2013.01); C09J 163/00 (2013.01); A61B 2562/125 (2013.01); A61N 1/0558 (2013.01); C01B 32/182 (2017.08);
Abstract
Epoxy adhesives include a latent curing agent, a reactive toughener having capped isocyanate groups, and certain urea compounds. The toughener is made by chain extending and capping a mixture of isocyanate-terminated prepolymers. The prepolymers include an isocyanate-terminated polyether and an isocyanate-terminated diene polymer. The adhesives have excellent wash-off resistance and excellent ability to adhere to oily substrates.