DIALKOXYALKADIENYNE COMPOUND AND A PROCESS FOR PREPARING THE SAME AND A PROCESS FOR PREPARING A DIENYNAL COMPOUND
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20210061744A1
公开(公告)日:2021-03-04
A process for preparing a dienynal compound of the following general formula (2): CH
2
═CHC≡CCH═CH(CH
2
)
n
CHO (2), wherein n represents an integer of 0 to 11, the process comprising a step of hydrolyzing a dialkoxyalkadienyne compound of the following general formula (1): CH
2
═CHC≡CCH═CH(CH
2
)
n
CH(OR
1
)(OR
2
) (1) wherein R
1
and R
2
represent, independently of each other, a monovalent hydrocarbon group having 1 to 15 carbon atoms, preferably 1 to 8, mere preferably 1 to 4, or R
1
and R
2
may be bonded to each other to form a divalent hydrocarbon group, R
1
-R
2
, having from 2 to 10 carbon atoms, and n represents an integer of 0 to 11, to obtain the dienynal compound (2).
Ink, method for producing ink, ink storage container, recording device, and recording method
申请人:Yanagawa Yoshiki
公开号:US10011729B2
公开(公告)日:2018-07-03
An ink is provided. The ink includes a quinacridone pigment and an organic solvent having a solubility parameter of from 9.00 to 11.80 in an amount of from 30% to 60% by mass of total mass of the ink. Both a viscosity change rate and a particle diameter change rate of the ink, before and after the ink is heated at 80° C. for 4 weeks in a sealed state, are in the range of from −5% to 1%.
Dialkoxyalkadienyne compound and a process for preparing the same and a process for preparing a dienynal compound
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US11148989B2
公开(公告)日:2021-10-19
A process for preparing a dienynal compound of the following general formula (2):
CH2═CHC≡CCH═CH(CH2)nCHO (2),
wherein n represents an integer of 0 to 11, the process comprising a step of hydrolyzing a dialkoxyalkadienyne compound of the following general formula (1):
CH2═CHC≡CCH═CH(CH2)nCH(OR1)(OR2) (1)
wherein R1 and R2 represent, independently of each other, a monovalent hydrocarbon group having 1 to 15 carbon atoms, preferably 1 to 8, more preferably 1 to 4, or R1 and R2 may be bonded to each other to form a divalent hydrocarbon group, R1-R2, having from 2 to 10 carbon atoms, and n represents an integer of 0 to 11, to obtain the dienynal compound (2).