公开(公告)号：US20170174815A1

公开(公告)日：2017-06-22

申请号：US15127563

申请日：2015-05-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yongshang Lu ,  Jon P. Nietfeld ,  Susan M. Endle ,  Richard G. Hansen ,  Suresh Iyer

IPC: C08G18/08 ,  C08G18/48 ,  C08G18/32 ,  C08G18/66 ,  C08G18/24 ,  C08G18/38 ,  C08G18/12 ,  C08G18/75 ,  C08G18/42

CPC classification number: C08G18/0866 ,  C08G18/0823 ,  C08G18/12 ,  C08G18/242 ,  C08G18/246 ,  C08G18/289 ,  C08G18/3206 ,  C08G18/3212 ,  C08G18/3228 ,  C08G18/3231 ,  C08G18/3234 ,  C08G18/3834 ,  C08G18/3893 ,  C08G18/4244 ,  C08G18/4825 ,  C08G18/6685 ,  C08G18/74 ,  C08G18/755 ,  C08G18/758

Abstract: A method of making a silyl-terminated polyurethane in an aqueous dispersion aqueous silyl-terminated polyurethane dispersions are described. In one embodiment, the polyurethane comprises a) urethane moieties derived from the reaction of a (i) a diol; (ii) a neutralized anionic water solubilizing compound; and iii) a diisocyanate. The polyurethane also comprises b) silyl terminal groups derived from an alkoxy silane compound having the formula (R3O)3SiR4—Z, wherein R3 is independently hydrogen or a C1-C4 alkyl; R4 is a divalent group selected from alkylene, alkylarylene, oxyalkylene; and Z is selected from the group consisting of —OH, —SH, —NR, —NH2, wherein R is an aromatic or aliphatic cyclic group. The polyurethane also comprises c) urea moieties derived from the reaction of an isocyanate terminated prepolymer and a difunctional hydrazine or hydrazide compound.

公开(公告)号：US10351653B2

公开(公告)日：2019-07-16

申请号：US15127563

申请日：2015-05-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yongshang Lu ,  Jon P. Nietfeld ,  Susan M. Endle ,  Richard G. Hansen ,  Suresh Iyer

IPC: C08G18/08 ,  C08G18/12 ,  C08G18/24 ,  C08G18/28 ,  C08G18/32 ,  C08G18/38 ,  C08G18/42 ,  C08G18/48 ,  C08G18/66 ,  C08G18/74 ,  C08G18/75

Abstract: A method of making a silyl-terminated polyurethane in an aqueous dispersion aqueous silyl-terminated polyurethane dispersions are described. In one embodiment, the polyurethane comprises a) urethane moieties derived from the reaction of a (i) a diol; (ii) a neutralized anionic water solubilizing compound; and iii) a diisocyanate. The polyurethane also comprises b) silyl terminal groups derived from an alkoxy silane compound having the formula (R3O)3SiR4—Z, wherein R3 is independently hydrogen or a C1-C4 alkyl; R4 is a divalent group selected from alkylene, alkylarylene, oxyalkylene; and Z is selected from the group consisting of —OH, —SH, —NR, —NH2, wherein R is an aromatic or aliphatic cyclic group. The polyurethane also comprises c) urea moieties derived from the reaction of an isocyanate terminated prepolymer and a difunctional hydrazine or hydrazide compound.

公开(公告)号：US10160864B2

公开(公告)日：2018-12-25

申请号：US15321085

申请日：2015-06-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Susan M. Endle ,  Jon P. Nietfeld ,  Yongshang Lu ,  Richard G. Hansen ,  Suresh S. Iyer

IPC: B05D1/02 ,  C09D5/02 ,  C09D175/12 ,  C09D7/63 ,  C08G18/48 ,  C08G18/75 ,  C08G18/08 ,  C08G18/10

Abstract: Provided are one-part, shelf-stable polyurethane aerosol compositions, and related articles and methods. When sprayed onto a substrate and dried, these compositions provide polyurethane films. These polyurethane films display improved moisture resistance, optical clarity, and weatherability compared to known aerosol compositions, particularly in adverse environmental conditions. The compositions generally include an aqueous polyurethane dispersion containing a urethane moiety obtained by reacting (i) a polyol or thiol having isocyanate-reactive functional groups, (ii) a neutralized water-solubilizing compound, and (iii) a diisocyanate and optionally a silane terminal group; a propellant; and optionally one or more additives.