公开(公告)号：US20170247503A1

公开(公告)日：2017-08-31

申请号：US15518509

申请日：2015-11-18

Applicant: Dow Global Technologies LLC

Inventor： Huifeng Qian ,  Gary A. Hunter ,  Gyongyi Gulyas

IPC: C08G59/68 ,  C08G59/24 ,  C08G59/72 ,  C08G59/50

CPC classification number: C08G59/685 ,  C08G59/245 ,  C08G59/5033 ,  C08G59/681 ,  C08G59/72 ,  C08G2650/50

Abstract: An accelerator composition for epoxy resin formulations, the accelerator composition including (i) at least one transition metal complex and (ii) at least one salt where the cation of the salt is a metal or an onium cation with a non-nucleophilic anion; and a curable epoxy resin composition including (A) at least one epoxy thermosetting resin, (B) at least one curing agent, and (C) the above accelerator; a curable epoxy resin composition containing the above accelerator; and a cured thermoset produced from the above curable epoxy resin composition.

公开(公告)号：US20170247502A1

公开(公告)日：2017-08-31

申请号：US15504673

申请日：2015-11-18

Applicant: Dow Global Technologies LLC

Inventor： Huifeng Qian ,  Gary A. Hunter ,  Gyongyi Gulyas

IPC: C08G59/68 ,  C08G59/50 ,  B29C70/48 ,  C08J5/04 ,  B29C70/52 ,  C08G59/38 ,  C08G59/72

Abstract: A curable composition includes an epoxy resin component that includes at least one multifunctional epoxy novolac resin and at least one multifunctional liquid epoxy resin, an amine hardener component that includes at least one aromatic amine and optionally at least one cycloaliphatic amine, and an accelerator component that includes (i) at least one transition metal complex having a transition metal ion and an oxygen donor ligand, and (ii) at least one salt having a cation including a metal ion or an onium ion, and an anion including a non-nucleophilic anion.

公开(公告)号：US20170267809A1

公开(公告)日：2017-09-21

申请号：US15505629

申请日：2015-11-24

Applicant: Dow Global Technologies LLC

Inventor： Kevin J. Meyer ,  Gary A. Hunter ,  Douglas L. Potts ,  William L. Ritter

IPC: C08G59/50 ,  C08G59/24 ,  C08G59/68

CPC classification number: C08G59/5026 ,  C08G59/245 ,  C08G59/50 ,  C08G59/504 ,  C08G59/687 ,  C08G2650/50 ,  C08J3/24 ,  C08J5/24 ,  C08J2363/02

Abstract: An amine hardener system useful for curing a curable resin composition including a blend of: (I) a first amine hardener comprising at least one cycloaliphatic amine; and (II) a second amine hardener comprising at least one polyetheramine; and a curable epoxy resin composition including (A) at least one epoxy resin compound; and (B) at least one curing agent; wherein the at least one curing agent includes the above amine hardener system.

公开(公告)号：US09708516B2

公开(公告)日：2017-07-18

申请号：US14410307

申请日：2013-06-26

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Bradley D. Suerer ,  Syed Z. Mahdi ,  Gary L. Jialanella ,  Gary A. Hunter

IPC: C09J175/06 ,  C09J175/04 ,  C08G18/10 ,  C08G18/12 ,  C08G18/32 ,  C08G18/48 ,  C08G18/66 ,  C08G18/36 ,  C08K3/26 ,  C08K3/36

CPC classification number: C09J175/06 ,  C08G18/10 ,  C08G18/12 ,  C08G18/3234 ,  C08G18/36 ,  C08G18/4829 ,  C08G18/6696 ,  C08K3/26 ,  C08K3/36 ,  C08K2003/265 ,  C09J175/04 ,  C08G18/6685 ,  C08G18/6662 ,  C08G18/6629 ,  C08G18/6651 ,  C08G18/6618

Abstract: Two component polyurethane adhesives contain (a) at least one alkyl-substituted 4,4′-di(aminocyclohexyl)alkane wherein each cyclohexyl group is alkyl-substituted in at least one position ortho to the amino group, (b) at least one 2,4′-di(aminocyclohexyl)alkane or 2,2′-di(aminocyclohexyl)alkane, (c) a mixture of (ii) at least one alkyl-substituted 4,4′-di(aminocyclohexyl)alkane wherein each cyclohexyl group is alkyl-substituted and (ii) at least one 2,4′-di(aminocyclohexyl)alkane and/or 2,2′-di(aminocyclohexyl)alkane, or (d) a mixture of 40 to 99.9% by weight (a), (b) or (c) with 0.1 to 60% by weight of at least one unsubstituted 4,4′-di(aminocyclohexyl)alkane, The adhesives also contain one or more polyols, in which at least 50% of the hydroxyl groups are secondary hydroxyls. These adhesive provide a useful combination of long open time and excellent sag resistance.