Patent classifications
C08F283/06
POLYETHERS AND THEIR USE IN THE PRODUCTION OF FLEXIBLE POLYURETHANE FOAMS
Disclosed are amine-containing polyethers that are the reaction product of a reaction mixture comprising: (a) a polyether of the formula A(OZOX)n where (i) A is a polyether derived from a hydroxyl-functional polyether having a hydroxyl functionality (y) of 1 to 8 and an OH number of 20 to 400 mg KOH/g, wherein the free hydroxyl functionality of A is y-m, wherein m is a number having a value of 1 to 7; (ii) Z is a divalent residue comprising an alkylene oxide moiety; (iii) X is an amine reactive moiety; and (iv) n is a number having a value of 1 to 7; and (b) an amino diphenylamine. Polyol compositions that include an amine-containing polyether polyol are also described, a polymer polyol compositions, polyurethane foams and methods of producing flexible polyurethane foams.
Radically polymerizable polyether, method for producing said radically polymerizable polyether, polymerizable composition comprising said radically polymerizable polyether and radically polymerizable vinyl monomer, and copolymer, molded article and film each formed by radical polymerization of said polymerizable composition
Provided is (1) a radically polymerizable polyether which imparts excellent mechanical properties including excellent transparency, a high degree of elongation at break and high bending strength to a copolymer produced by the radical polymerization of a radically polymerizable monomer, and a method for producing the radically polymerizable polyether; (2) a polymerizable composition comprising the radically polymerizable polyether and a radically polymerizable vinyl monomer, which enables the formation of a copolymer having excellent mechanical properties; and (3) a copolymer, a molded article and a film, each of which comprises the copolymer.
COMPOSITIONS AND METHODS RELATING TO LIVING SUPRAMOLECULAR POLYMERIZATION AND POLYMERS
A supramolecular polymer with living characteristics is provided based on small molecules or metal complexes of a planar or linear geometry and a polymer. The small molecules are solvophobic and can associate or assemble with each other through non-covalent interactions such as but not limited to metal-metal, π-π, hydrogen-bonding, and/or solvophobic-solvophobic interactions, in the modulation of the polymer. The polymer has affinity to the medium (e.g., solvent) and still interacts with the small molecules via non-covalent interactions such as electrostatic attractions to stabilize the associated/assembled small molecules. Varying the composition and/or length of the polymer can modulate the dimensions of the supramolecular polymer and the nanostructures therefrom. The two- or multi-component supramolecular polymer has active ends to support further supramolecular polymerization upon addition of small molecules of a planar or linear geometry. A process of two-component living supramolecular polymerization is also provided.
COMPOSITIONS AND METHODS RELATING TO LIVING SUPRAMOLECULAR POLYMERIZATION AND POLYMERS
A supramolecular polymer with living characteristics is provided based on small molecules or metal complexes of a planar or linear geometry and a polymer. The small molecules are solvophobic and can associate or assemble with each other through non-covalent interactions such as but not limited to metal-metal, π-π, hydrogen-bonding, and/or solvophobic-solvophobic interactions, in the modulation of the polymer. The polymer has affinity to the medium (e.g., solvent) and still interacts with the small molecules via non-covalent interactions such as electrostatic attractions to stabilize the associated/assembled small molecules. Varying the composition and/or length of the polymer can modulate the dimensions of the supramolecular polymer and the nanostructures therefrom. The two- or multi-component supramolecular polymer has active ends to support further supramolecular polymerization upon addition of small molecules of a planar or linear geometry. A process of two-component living supramolecular polymerization is also provided.
BLOCK COPOLYMERS THAT CAN BE USED AS PLASTICISERS
Disclosed is a block copolymer including: at least one block A not including any phosphonate group, and including at least one poly(alkylene oxide) group and at least one block B obtained by polymerization of a monomer B1 or of a mixture of monomers with ethylenic unsaturation including at least one monomer B1, wherein a monomer B1 is a monomer with ethylenic unsaturation including at least one phosphonate function,
to its preparation method by RAFT controlled radical polymerization and to its uses.
BLOCK COPOLYMERS THAT CAN BE USED AS PLASTICISERS
Disclosed is a block copolymer including: at least one block A not including any phosphonate group, and including at least one poly(alkylene oxide) group and at least one block B obtained by polymerization of a monomer B1 or of a mixture of monomers with ethylenic unsaturation including at least one monomer B1, wherein a monomer B1 is a monomer with ethylenic unsaturation including at least one phosphonate function,
to its preparation method by RAFT controlled radical polymerization and to its uses.
POLYCARBOXYLIC ACID WATER-REDUCING AGENT WITH HIGH ADAPTABILITY TO TEMPERATURE AND METHOD FOR PREPARING THE SAME
The present invention discloses a polycarboxylic acid water-reducing agent with high adaptability to temperature and a preparation method for preparing the same. The polycarboxylic acid water-reducing agent is prepared by introducing an unsaturated macromonomer D with a temperature-sensitive side chain which could be bonded to the backbone of the polycarboxylic acid through free radical polymerization. The polycarboxylic acid water-reducing agent prepared by the invention has an adsorption group density that can be automatically adjusted with the change of ambient temperature, and thereby shows similar dispersing capability and dispersion retention capability at different ambient temperatures, demonstrating high adaptability to different ambient temperatures. It can be used in a larger temperature range with a constant dosage, which is beneficial to further popularization and application of the polycarboxylic acid water-reducing agent in regions of different climates.
AUTOMATIC DISHWASHING METHOD WITH AMPHIPHILIC GRAFT POLYMER IN THE RINSE
A method of cleaning dishware in a domestic dishwasher using a program having a cleaning cycle and a rinse cycle, the method includes the steps of placing the dishware in the dishwasher; delivering a cleaning composition into the cleaning cycle to form a wash liquor and subjecting the dishware to the wash liquor; and delivering a rinse composition to form a rinse liquor, the composition includes an amphiphilic graft polymer based on water-soluble polyalkylene oxides as a graft base and side chains formed by polymerization of a vinyl ester component, wherein said amphiphilic graft polymer is water-soluble or water-dispersible and has a weight average molar mass (Mw) of from about 3,000 to about 100,000 and subjecting the dishware to the rinse liquor.
AUTOMATIC DISHWASHING METHOD WITH AMPHIPHILIC GRAFT POLYMER IN THE RINSE
A method of cleaning dishware in a domestic dishwasher using a program having a cleaning cycle and a rinse cycle, the method includes the steps of placing the dishware in the dishwasher; delivering a cleaning composition into the cleaning cycle to form a wash liquor and subjecting the dishware to the wash liquor; and delivering a rinse composition to form a rinse liquor, the composition includes an amphiphilic graft polymer based on water-soluble polyalkylene oxides as a graft base and side chains formed by polymerization of a vinyl ester component, wherein said amphiphilic graft polymer is water-soluble or water-dispersible and has a weight average molar mass (Mw) of from about 3,000 to about 100,000 and subjecting the dishware to the rinse liquor.
METHOD FOR PRODUCING AQUEOUS DISPERSION OF POLYTETRAFLUOROETHYLENE
To provide a method for producing an aqueous dispersion of polytetrafluoroethylene, whereby formation of fluorinated oligomers as byproducts is little and CFT of a coating film to be formed is large.
A method for producing an aqueous dispersion of polytetrafluoroethylene, which comprises step A1 of polymerizing a non-fluorinated monomer in an aqueous medium to obtain a solution 1 containing a polymer comprising units based on said non-fluorinated monomer, step A2 of conducting polymerization of tetrafluoroethylene in said solution 1 without substantially adding a surfactant to said solution 1, to obtain an aqueous emulsion containing polytetrafluoroethylene particles, and step A3 of adding a nonionic surfactant to said aqueous emulsion, and then concentrating said aqueous emulsion to obtain an aqueous dispersion of polytetrafluoroethylene, wherein the amount of said non-fluorinated monomer used is at most 200 mass ppm to the amount of said tetrafluoroethylene supplied to the polymerization system.