The invention provides epoxy and oxetane compositions including the novel acyloxy and N-acyl curing agents described herein. Use of invention curing agents result in cured adhesive compositions with remarkably increased adhesion and reduced hydrophilicity when compared to resins cured with other types of curing agents. Furthermore, the curatives of this invention do not interfere with free-radical cure and are thus suited for use in hybrid cure thermoset compositions.
SOLID ROCKET MOTOR HAVING HYDORXYL -TERMINATED BINDER WEIGHT DIOL
申请人:Aerojet Rocketyne, Inc.
公开号:US20190077725A1
公开(公告)日:2019-03-14
A solid rocket propellant includes a hydroxyl-terminated polybudadiene (HTPB) binder system having a high molecular weight diol that is greater than thirty carbon atoms (>C
30
) and less than fifty carbon atoms (
[EN] CHEMICALLY CROSS-LINKED ELASTOMERS FORMED BY MICHAEL ADDITION AND COMPOSITIONS COMPRISING SUCH ELASTOMERS<br/>[FR] ÉLASTOMÈRES RÉTICULÉS CHIMIQUEMENT FORMÉS PAR ADDITION DE MICHAEL ET COMPOSITIONS COMPRENANT DE TELS ÉLASTOMÈRES
申请人:NANOMETICS LLC D B A PHD BIOSCIENCES
公开号:WO2021257937A1
公开(公告)日:2021-12-23
Gel compositions containing a Michael addition elastomer formed from the reaction of a reactant molecule containing two or more Michael acceptor groups and a molecule containing one or Michael donor group with two or more active hydrogens in its molecule and capable of forming 1,4-addition products with the Michael acceptor reactants, in a topically acceptable carrier fluid. The gelled compositions may further contain a personal or healthcare active. The actives may be incorporated into the gel via either a pre or post load method.