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.