摘要:
The present invention pertains to a water-redispersible polymer powder based on at least one modified natural latex. The modified natural latex can be obtained by mixing natural latex with at least one radical initiator and/or oxidising agent, by mixing and reacting natural latex with at least one olefinically unsaturated monomer and with at least one radical initiator, and/or by mixing natural latex with at least one filler. Preferably, the polymer powder contains up to about 95 wt.% of least one natural latex, about 0 to 50 wt.% of at least one protective colloid, about 2 to 70 wt.% of at least one filler and/or anti-caking agent, as well as optionally further additives. In addition, the invention pertains to a process for the preparation of the polymer powder, the use thereof as an additive in building material compositions, as well as building material compositions containing the polymer powder.
摘要:
Disclosed is a coating composition comprising: a styrene block copolymer, a filler having a core-shell structure, silica, and a solvent. The above core-shell structured filler can improve peel-off property of a film made of styrene block copolymer based coating composition.
摘要:
The present invention relates to a method of manufacture of styrene-butadiene latexes. The styrene-butadiene latex according to the present invention is characterized by having a superior adhesive force as the formation of films at an early stage is pranoted by adjusting the gel content and molecular weight of the outermost layer, as well as a fast ink-drying speed and a high air permeability as the formation of paper films is maintained, It may be applied to paper coating very stably since the mechanical stability and chemical stability of the latex axe superior.
摘要:
Flame retardant latex coatings are disclosed which include natural or synthetic latex grafted with ring-halogenated, ethylenically unsaturated aromatic monomers. The grafted latex is used alone or in combination with non-grafted natural or synthetic latex. The coatings are useful for a wide variety of applications, including fabric backcoatings, carpetings, paints, adhesives, sealants, caulks, non-woven binders and so on.
摘要:
Liquid coating compositions provide protective epoxy coatings, particularly flexible and damage-resistant epoxy coatings. Such coating compositions include a liquid epoxy resin, a reactive flexibilizing agent, and core-shell rubber particles.
摘要:
Die Erfindung betrifft schlagzähmodifizierte Polyamid-Zusammensetzungen und daraus hergestellte Formteile, die sich insbesondere zur Online-Lackierung eignen sowie die on-line lackierten Formteile.
摘要:
A covering resin composition, such as a coating material, which exhibits excellent properties with respect to various synthetic resin sheets, films and moldings, or an adhesive resin composition. The composition is produced by mixing a carboxylated chlorinated polyolefin resin, prepared by the graft copolymerization of a polyolefin with an alpha , beta -unsaturated carboxylic acid and/or anhydride thereof followed by chlorination, with a chlorinated polyolefin resin prepared by oxidatively treating a polyolefin with at least one member selected from among air, oxygen and ozone during the chlorination of the polyolefin, conducting the graft copolymerization of the obtained resin mixture with a monomer having an ethylenically unsaturated bond in its molecule and another monomer having both an ethylenically unsaturated bond and a hydroxyl group in its molecule, and compounding the obtained graft copolymer with an isocyanate compound or an alkyl-etherified amino-resin as a curing agent.
摘要:
A polymeric surfactant comprises the reaction product of ethylenically unsaturated monomers at least 40 percent by weight of which are acid group containing monomers, including a combination of both acrylic acid and methacrylic acid, at least a portion of the acid groups being neutralized by a base. Also disclosed is an aqueous acrylic latex made by polymerizing a second polymer from ethylenically unsaturated monomers in the presence of said polymeric surfactant, whereby the latex comprises polymeric particles containing two polymers. The latex may be used to advantage in very low V.O.C. coatings that may be spray applied.