摘要:
“The invention relates to a method for preparing a composite latex, including(a) a first step of free radical emulsion or microsuspension polymerization or copolymerization, leading to the production of a first polymer latex, and(b) a second step of free radical microsuspension, emulsion, or suspension polymerization or copolymerization in the presence of the first polymer latex obtained in the first step (a), characterized in that the first polymer forming the latex obtained in step (a) is a halogen-containing vinyl polymer and the polymer formed in step (b) is an associative copolymer, preferably compatible with the halogen-containing vinyl polymer, which contains units from a first monomer (A) and units from a second monomer (B) having at least one associative group; however the nature of both polymers are capable of being reversed. The invention also relates to a latex or polymer suspension obtained by said method and to a polymer composition obtained from the latter, as well as to the use of said latex, from said suspension or said polymer composition, for manufacturing rigid or plasticized materials.”
摘要:
The present invention relates to a method of preparing a polymer resin based on a halogenated vinyl polymer and a copolymer bearing associative groups, comprising the steps that consist in forming a latex of each of these polymers, blending said latices, then isolating and drying the polymers contained in said latices in order to form a pulverulent resin. The present invention also relates to said resin, to a pulverulent composition containing said resin, and also to the use of this composition for manufacturing rigid or plasticized materials.
摘要:
The invention relates to a method of neutralizing paints, that includes adding at least one associative neutralizing agent to a formulation such as a pigment concentrate, a white paint base or paint. The associative neutralizing agent includes at least one neutralizing group N and at least one nitrogenous associative group A bonded together by at least one “spacer” group Sp. The invention also relates to pigment concentrates and to paints containing at least one such associative neutralizing agent.
摘要:
The present invention relates to nitrogenous associative molecules comprising at least one unit rendering them capable of associating with one another or with a filler by noncovalent bonds, and comprising a function capable of reacting with a polymer containing unsaturations so as to form a covalent bond with said polymer.
摘要:
The present invention provides a method for detecting mutations in the PALB2 gene in pancreatic cancer patients and in individuals having a family history of pancreatic cancer. Methods are also provided for diagnosing a predisposition to pancreatic cancer, for predicting a patient's response to pancreatic cancer therapies, and for treating pancreatic cancer, based on presence of a PALB2 mutation or abberant PALB2 gene expression in a patient.
摘要:
The present invention relates to the use, as a shock absorber, of a material formed from branched molecules comprising associative groups. Said branched molecules are each constituted of fragments that are at least bifunctional and of fragments that are at least trifunctional joined together by ester or thioester bridges, alone or in combination with amide or urea bridges.
摘要:
The invention relates to the use of poly(ethylene-co-propylene) glycol monoalkyl ether or polyethylene glycol monoalkyl ether or poly(ethylene-co-propylene) glycol or polyethylene glycol (meth)acrylic amide or ester monomers capable of contributing to stabilization in the course of a latex preparation process by emulsion polymerization of at least one polymerizable monomer in the presence of an ionizable polymerization initiator.
摘要:
The present invention relates to a composition comprising: (a) at least one halogenated vinyl polymer and (b) at least one copolymer containing (i) units derived from a first monomer (A) rendering said copolymer compatible with said halogenated vinyl polymer and (ii) units derived from a second monomer (B) bearing at least one given associative group. The present invention also relates to the use of such a copolymer bearing associative groups, for improving certain properties of a halogenated vinyl polymer. The invention finally relates to the uses of the aforementioned composition.
摘要:
The invention relates to a supramolecular polymer derived from the reaction between (i) an amine bearing a nitrogen-containing heterocyclic group: imidazolidone, trimethyleneurea or triazine, capable of joining together via hydrogen bonds with (ii) at least one fatty acid monomer comprising at least one reactive functional group, a dimer of identical or different fatty acids and/or a trimer of identical or different fatty acids, or a derivative of said fatty acid(s) chosen from a fatty acid ester, and a fatty acid chloride.
摘要:
A novel series of BPU analogues were synthesized and evaluated for antitumor activity. In particular, BPU sulfur analogues 6n and 7d were shown to possess up to 10-fold increased potency, when compared to compound 1, against cancer cell lines. 6n was more effective than compound 1 in causing apoptosis of MCF-7 cells. When compared to other drugs with a similar mechanism of action, 6n retained significant ability to inhibit tubulin assembly, with an IC50 of 2.1 μM.