SULFURIZED BENZOXAZINE FOR USE IN THE SYNTHESIS OF A POLYBENZOXAZINE
申请人:COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
公开号:US20200199112A1
公开(公告)日:2020-06-25
A sulfurized benzoxazine compound, which is usable for the synthesis of a polybenzoxazin, corresponds to formula (A):
in which: each benzene nucleus of the two oxazine rings bears at least one radical denoted as “G”; the two oxazine rings are connected together via a central aromatic group, the benzene ring of which bears one, two, three or four groups of formula —S
x
—R in which “x” is an integer from 1 to 8 and R represents hydrogen or a hydrocarbon-based group including 1 to 10 carbon atoms and optionally a heteroatom chosen from O, S, N and P; and the at least two radicals G, which may be identical or different, are chosen from various groups
Disclosed are halogenated diethyltoluenediamines of formula
wherein either R
1
is an amino group and R
2
is chlorine or bromine, or R
2
is an amino group and R
1
is chlorine or bromine, and isomeric mixtures thereof. The halogenated diethyltoluenediamines of formula I are useful as chain extenders for polyurethanes and hardeners for epoxy resins having a relatively long gel time.
Disclosed are halogenated diethyltoluenediamines of formula I, wherein either R1 is an amino group and R2 is chlorine or bromine, or R2 is an amino group and R1 is chlorine or bromine, and isomeric mixtures thereof. The halogenated diethyltoluenediamines of formula I are useful as chain extenders for polyurethanes and hardeners for epoxy resins having a relatively long gel time.
BIS[3-ISOPROPENYL-ALPHA,ALPHA-DIMETHYLBENZYL]CARBODIIMIDE, PRODUCTION METHODS, AND USE OF SAID COMPOUND
申请人:RHEIN CHEMIE RHEINAU GMBH
公开号:US20170088509A1
公开(公告)日:2017-03-30
The present invention relates to novel processes for producing bis[3-isopropenyl-α,α-dimethylbenzyl]carbodiimide, to the thus-produced bis[3-isopropenyl-α,α-dimethylbenzyl]carbodiimide and to the use thereof as a hydrolysis inhibitor in polyurethane (PU)-based systems, preferably thermoplastic TPU, PU adhesives, PU casting resins, PU elastomers or PU foams.
FLEXIBLE POLYAMINES, FLEXIBLE AMINE-TERMINATED ADDUCTS, COMPOSITIONS THEREOF AND METHODS OF USE
申请人:Hobbs Stephen J.
公开号:US20130071571A1
公开(公告)日:2013-03-21
Disclosed are flexible polyamines, flexible amine-terminated polyformal adducts, flexible-amine-terminated polythioether adducts, compositions comprising flexible polyamines and isocyanate-terminated prepolymers, and compositions comprising flexible amine-terminated adducts and isocyanate-terminated prepolymers. Uses of the compositions as sealants, and particularly as aerospace sealants, are also disclosed.