公开(公告)号：US20190352549A1

公开(公告)日：2019-11-21

申请号：US16482925

申请日：2018-02-19

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Tyler Auvil ,  Bindu Krishnan ,  Andreas Lutz ,  Felix Koch ,  Cody Clinton

IPC: C09J163/00 ,  C08G59/40 ,  C08G64/04 ,  B32B7/12 ,  C09J109/00

Abstract: A one-component toughened epoxy-modified polyurethane and/or urea adhesive includes a mixture of dicyandiamide and a dihdyrazide as curing agents. The mixture of curing agents permits the adhesive to be cured at lower temperatures while developing good adhesive and mechanical properties in the cured adhesive.

公开(公告)号：US20210230421A1

公开(公告)日：2021-07-29

申请号：US17055788

申请日：2019-05-08

Applicant: Dow Global Technologies LLC

Inventor： Adam K. Schmitt ,  Tyler Auvil ,  David H. Bank ,  Bharati Balijepalli

IPC: C08L63/04 ,  C08J5/24 ,  C08G59/40 ,  C08G59/14 ,  C08J5/04 ,  C08G59/26 ,  C08G59/24 ,  C08L25/10 ,  C08L71/12

Abstract: Disclosed is a toughened epoxy composition comprising (a) a first epoxy component comprising one or more epoxy resins having at least one oxazolidone ring structure; and (b) a second epoxy component comprising one or more liquid epoxy resins; (c) one or more latent epoxy curing agents; (d) one or more rubber toughening agents and (e) one or more phenoxy resin toughening agents.

公开(公告)号：US20180163104A1

公开(公告)日：2018-06-14

申请号：US15574601

申请日：2016-05-31

Applicant: Dow Global Technologies LLC

Inventor： Andreas Lutz ,  Daniel Schneider ,  Bindu Krishnan ,  Tyler Auvil

IPC: C09J175/08 ,  C09J175/14 ,  C09J163/00 ,  C08G18/10 ,  C08G18/24 ,  C08G18/32 ,  C08G18/48 ,  C08G18/62 ,  C08G18/66 ,  C08G18/73 ,  C08G18/75

CPC classification number: C09J175/08 ,  C08G18/10 ,  C08G18/246 ,  C08G18/3206 ,  C08G18/3215 ,  C08G18/4854 ,  C08G18/6204 ,  C08G18/6677 ,  C08G18/73 ,  C08G18/755 ,  C08L63/00 ,  C09J163/00 ,  C09J175/14 ,  C08L75/04

Abstract: The invention is directed to a toughener for epoxy adhesives, the toughener being a reaction product of a bisphenolic blocked PU toughener with a diglycidyl ether-bisphenol product such liquid DGEBA. The invention includes adhesives comprising the inventive tougheners, methods of using the tougheners and adhesives comprising them, as well as cured inventive adhesives and products comprising them.