Patent classifications
C08G65/325
SURFACE-TREATING AGENT COMPRISING PERFLUORO(POLY)ETHER GROUP-CONTAINING COMPOUND
A surface-treating agent including a perfluoro(poly)ether group-containing silane compound and a perfluoro(poly)ether group-containing compound. The perfluoro(poly)ether group-containing compound contains a radical capturing group or a UV absorbing group in the molecule.
TETRAHYDROFURFURYL ALCOHOL INITIALIZED POLYETHERAMINES AND USES THEREOF
The present disclosure provides a non-hydrocarbyl-based alcohol initiated polyetheramine. In particular, the polyetheramine of the present disclosure is produced from a tetrahydrofurfuryl alcohol-based initiator which is alkoxylated and then reductively aminated. The polyetheramine of the present disclosure may be used in a variety of applications, such as a raw material in the synthesis of a dispersant for use in an aqueous pigment dispersion.
SURFACTANT COMPOSITION, AQUEOUS RESIN DISPERSION, AND ITS PRODUCTION METHOD
Provided is a surfactant composition having the capability of not only imparting excellent polymerization stability, but also imparting excellent mechanical stability to the aqueous resin dispersion to be obtained through emulsion polymerization, even when the amount of the surfactant composition used is small.
The surfactant composition includes a surfactant (A) and an anionic surfactant (B) having no radical polymerizable substituent, where the surfactant (A) is a compound represented by a general formula (I)
##STR00001##
(in which D represents a polymerizable unsaturated group; R.sup.1 represents a group having an aromatic ring; ml is 1 to 2, m2 is 1 to 2, and a sum of numbers m1 and m2 is 2 to 3; A represents an alkylene group or a substituted alkylene group having a carbon number of 2 to 4; n is an average number of moles of alkylene oxide added and is 1 to 1000; and X represents an anionic hydrophilic group) and the surfactant (B) contains a polyoxyalkylene group which has a repeating number of an oxyalkylene unit of 1 to 10.
Supported catalyst used for synthesizing polyether amine, and manufacturing method
A supported catalyst used for synthesizing a polyether amine, and a manufacturing method of the catalyst. The catalyst comprises: a porous oxide as a support; Ni, Cu, Pd, and Rh as active components; and one or more of any of Zr, Cr, Mo, Fe, Zn, Sn, Bi, Ce, La, Hf, Sr, Sb, Mg, Be, Re, Ta, Ti, Sc, Ge and related metals as an auxiliary agent. The catalyst can be used in an amination reaction for a large molecular weight polyether polyol, and is particularly active and selective for an amination reaction of a low molecular weight polyether polyol. The catalyst has a simple and economic manufacturing technique and good potential for future applications.
Supported catalyst used for synthesizing polyether amine, and manufacturing method
A supported catalyst used for synthesizing a polyether amine, and a manufacturing method of the catalyst. The catalyst comprises: a porous oxide as a support; Ni, Cu, Pd, and Rh as active components; and one or more of any of Zr, Cr, Mo, Fe, Zn, Sn, Bi, Ce, La, Hf, Sr, Sb, Mg, Be, Re, Ta, Ti, Sc, Ge and related metals as an auxiliary agent. The catalyst can be used in an amination reaction for a large molecular weight polyether polyol, and is particularly active and selective for an amination reaction of a low molecular weight polyether polyol. The catalyst has a simple and economic manufacturing technique and good potential for future applications.
Ionic polyesters, polyethers, poly(ether sulfones), and related materials
Disclosed herein are ionic polymers incorporating an cationic atom in the polymer backbone.
Ionic polyesters, polyethers, poly(ether sulfones), and related materials
Disclosed herein are ionic polymers incorporating an cationic atom in the polymer backbone.
Co-preparation of polyetheramines and alklyene amines
The present disclosure provides a process for the co-preparation of a polyetheramine and an alkylene amine mixture by aminating a liquid polyol initiator mixture comprising an alkoxylated alcohol and a solid high melting polyol. The polyetheramine and alkylene amine mixture may be used in a variety of applications, such as a curing agent for epoxy resin formulations or as a raw material in the synthesis of polyurea.
DEGRADABLE POLYETHYLENE GLYCOL DERIVATIVE
The invention provides a high-molecular-weight polyethylene glycol derivative that does not cause vacuolation of cells. The degradable polyethylene glycol derivative is represented by the following formula (1):
##STR00001##
wherein m is 1-7, n1 and n2 are each independently 45-682, p is 1-4, R is an alkyl group having 1-4 carbon atoms, Z is an oligopeptide with 2-8 residues composed of neutral amino acids excluding cysteine, Q is a residue of a compound having 2-5 active hydrogens, X is a functional group capable of reacting with a bio-related substance, and L.sup.1, L.sup.2, L.sup.3, L.sup.4 and L.sup.5 are each independently a single bond or a divalent spacer.
DEGRADABLE POLYETHYLENE GLYCOL DERIVATIVE
The invention provides a high-molecular-weight polyethylene glycol derivative that does not cause vacuolation of cells. The degradable polyethylene glycol derivative is represented by the following formula (1):
##STR00001##
wherein m is 1-7, n1 and n2 are each independently 45-682, p is 1-4, R is an alkyl group having 1-4 carbon atoms, Z is an oligopeptide with 2-8 residues composed of neutral amino acids excluding cysteine, Q is a residue of a compound having 2-5 active hydrogens, X is a functional group capable of reacting with a bio-related substance, and L.sup.1, L.sup.2, L.sup.3, L.sup.4 and L.sup.5 are each independently a single bond or a divalent spacer.