Abstract:
The present invention provides a silicone derivatized macromolecule that is supported on a particulate support or a separation membrane and method for making that composition. The silicon-derivatized macromolecule can also be combined with chiral ligands or chelated metals. The applications for the silicone derivatized macromolecule variety including use in HPLC separations, in purification process and in personal care formulations.
Abstract:
The present invention provides melt-processible adhesive compositions prepared from a first oligomer containing reactive functional groups capable of reaction at effective rates (at normal processing temperatures) with a co-reactive second component oligomer possessing functionality that is complementary to that of the first oligomer. The compositions may be used as coatings, including hard surface coatings, clear coatings, powder coatings and pattern coatings; as adhesives, including pressure sensitive adhesives and hot melt adhesives; as sealants; as optical coatings; as blown microfibers (BMF); as high refractive index optical materials; as barrier films; in microreplication; as low adhesion backsizes, (LABs) and as release coatings.
Abstract:
The present invention is directed to a rheology control agent. The rheology control agent is used in a coating composition and is the reaction product of a first compound comprising a plurality of hydroxyl groups, of a lactone compound, and of a carbamate compound. The present invention is also directed to a coating composition including the rheology control agent and to a method of preparing the rheology control agent.
Abstract:
The present invention relates to a coating composition including a sol-gel matrix and a dendrimeric organochalcogeno derivative and a system including the coating composition and a substrate. The present invention also relates to a method of preventing fouling of surfaces subjected to a marine environment.
Abstract:
The invention provides stain-proofing agents capable of forming coating films excellent in rain streak stain resistance and durability thereof, coating compositions comprising the stain-proofing agents, and articles coated therewith. A stain-proofing agent comprising a polymer which contains at least one repeating unit having at least two hydroxyl groups, wherein the content (by mass) of the repeating unit is more than 10%. A stain-proofing agent comprising a polymer which contains at least two repeating units having hydroxymethyl groups, wherein the content (by mass) of the repeating unit is more than 30%. A coating composition comprising such a stain-proofing agent and a coating resin such as a fluororesin.
Abstract:
Hyperbranched polyurethanes are used for the preparation of printing inks and of printing varnishes. Printing inks and printing varnishes contain the hyperbranched polyurethanes as binders.
Abstract:
Primers for cyanoacrylate adhesives which are based on compounds having multiple amine groups thereon (“multi-amines”) which have at least three secondary or tertiary amine groups, at least one of which is a tertiary amine group. The multi-amine compounds are characterized by having thereon at least three terminal and/or pendant aliphatic hydrocarbon groups of at least 4 carbon atoms in length. Such primers give substantially improved bond strengths to cyanoacrylate adhesive bonded assemblies comprising a polyolefin substrate such as high density polyethylene, LDPE or polypropylene. The multi-amine may have a cascade, dendrimer, hyperbranched or comb-like structure.
Abstract:
The present invention provides novel compositions prepared from a first oligomer containing reactive functional groups capable of reaction at effective rates (at normal processing temperatures) with a co-reactive second component oligomer possessing functionality that is complementary to that of the first oligomer. The compositions may be used as coatings, including hard surface coatings, clear coatings, powder coatings and pattern coatings; as adhesives, including pressure sensitive adhesives and hot melt adhesives; as sealants; as optical coatings; as blown microfibers (BMF); as high refractive index optical materials; as barrier films; in microreplication; as low adhesion backsizes, (LABs) and as release coatings.
Abstract:
A hyperbranched polyester polyol macromolecule, having a plurality of both embedded and exterior hydroxyl groups thereon, may be synthesized in a polymerization reaction having several steps. The hyperbranched polyol includes a central nucleus, a first chain extension, an intermediate substituent and a second chain extension. The central nucleus is a hydrocarbon structure with a plurality of oxygen atoms. The first chain extender is attached to the central nucleus and includes a carboxylic ester group and a plurality of hydroxyl groups. The intermediate substituent is attached to the first chain extender, and is a polyfunctional carboxylic acid or anhydride thereof. The preferred intermediate substituent is a cyclic compound. The second chain extension is attached to the intermediate substituent. The preferred second chain extension includes a glycidyl ester or epoxy. Methods of making a hyperbranched polyester polyol are also disclosed. Coating compositions in which the hyperbranched polyol is reacted with an aminoplast or with an isocyanate are also encompassed by the invention.
Abstract:
Hyperbranched compounds having a tetrafunctional central group of the general formula I C[—Aq—X—]m[—Ar—X—]n[—As—X—]o[—At—X—]p (I), in which the indices and variables have the following meanings: m+n+o+p=4; where m=an integer from 1 to 3 and n, o and p=0 or an integer from 1 to 3; q,r,s and t=an integer from 1 to 5, where q>r, s and t; X=—O—, —S— or —NH—; A=—CR2—; where R=—H, —F, —Cl, —Br, —CN, —NO2, C1-C3 alkyl or C1-C3 haloalkyl or C1-C3 alkoxy radical or, if q, r, s and/or t=at least 2, a C2-C4 alkanediyl and/or C2-C4 oxaalkanediyl radical which bridges 2 to 5 carbon atoms, and/or an oxygen atom —O—, which bridges 3 to 5 carbon atoms, of the radical —A—.