Abstract:
본 발명은 제조 안정성 및 원료들 간의 상용성이 높고, 잔류 모노머량이 적으며, 방부제의 지속성 및 제품 안정성을 향상시킬 수 있는 비닐아세테이트-에틸렌 공중합체 에멀젼의 제조방법, 및 방부제의 지속성 및 제품 안정성이 우수한 비닐아세테이트-에틸렌 공중합체 에멀젼에 관한 것이다.
Abstract:
Die Erfindung betrifft Pfropfcopolymere (B) aufgebaut aus einer agglomerierten Pfropf- grundlage (B1) und mindestens einer Pfropfhülle (B2), sowie ferner agglomerierend wirkende Copolymere (C), ein Verfahren zur Herstellung der Pfropfcopolymere (B), thermoplastische Formmassen sowie die Verwendung der thermoplastischen Formmassen.
Abstract:
L'invention concerne l'utilisation d'une dispersion aqueuse de polymère à particules structurées cceur/écorce de TMF allant de 0 à 50°C, avec la phase polymère P1 étant un cœur dur avec Tg1 de 60 à 120°C et la phase polymère P2 étant une écorce molle de Tg2 de -20 à 40°C et avec P1, comprenant un monomère M1 à deux insaturations éthyléniques polymérisables et un monomère M2 éthyléniquement insaturé et porteur d'une fonction acide/anhydride carboxylique et P2, représentant de 40 à 85% en poids de P1 + P2 et comprenant dans sa structure des unités issues d'au moins un monomère M3 porteur d'une insaturation éthylénique polymérisable et en plus d'un groupement fonctionnel uréido ou d'un groupement fonctionnel possédant un hydrogène mobile en alpha d'un carbonyle cétonique, ladite utilisation étant pour le captage et piégeage irréversible d'un composé volatil organique porteur d'une fonction parmi aldéhyde, cétone ou aminé. Plus particulièrement, ladite utilisation concerne le polymère issu de ladite dispersion sous forme de film ou de revêtement.
Abstract:
Finely divided, cationic, aqueous polymer dispersions, method for the production thereof, and the use thereof The present invention relates to a finely divided, cationic, aqueous polymer dispersion which is obtainable by emulsion polymerisation of ethylenically unsaturated monomers in a continuous phase containing an aqueous liquid in which the emulsion polymerisation is carried out, in the presence of polymerisation initiators, of a combination of monomers comprising (a) from 0 to less than 60% by weight of at least one optionally substituted styrene, (b) from greater than 0 to 80% of at least one C 1 -C 12 –alkyl acrylate and/or at least one C 1 -C 12 –alkyl methacrylate, (c) from 0 to 10% by weight of at least one ethylenically unsaturated monomer comprising at least one acid group, (d) from 5 to 20% by weight of at least one ethylenically unsaturated monomer comprising a cationic group, and (e) from 0 to 50% by weight of at least one non-ionic ethylenically unsaturated monomer differing from (a), (b), (c), and (d), the sum of (a) + (b) + (c) + (d) + (e) being 100% by weight, and the aqueous liquid contains from 0 to 4% by weight based on the weight of the combination of monomers of at least one emulsifier, in which the emulsion polymerisation is carried out optionally in the presence of at least one terpene containing compound. Also claimed is a process or preparing the finely divided, cationic, aqueous polymer dispersion and the use of the finely divided, cationic, aqueous polymer dispersion for sizing paper, board and cardboard.
Abstract:
A latex particle comprises an interior core and an outer shell. The core comprises an acrylic or vinyl polymer, and the shell comprises a water soluble alkyd polymer and at least one surfactant. Substantially all or all of the alkyd polymer is present in the shell of the latex particle and substantially none or none or the alkyd polymer is present in the core of the latex particle. Also described is a process for making the latex particle wherein the water soluble alkyd polymer is present as a co-surfactant during polymerization.