Abstract:
A coating comprising the silated reaction product of R 1 (OH) m with R 2 -(SiYX 2 ) n and OCN(CH 2 ) t SiR 4 (OR 5 ) 2 with R 3 (OH) p ; a graft copolymer having an acrylic polymer based backbone and stabilizing arms comprising ethylenically unsaturated monomer, the backbone being insoluble and the arms being soluble in the composition; a melamine crosslinker; and an acrylic polyol; m, n, t., R 1 , R 2 , R 4 , R 5 , X and Y defined in the text.
Abstract:
A coating composition comprising the silated reaction product of R 3 (OH) p and OCN(CH 2 ) t SiR 4 (OR 5 ) 2 ; a graft copolymer having an acrylic polymer based backbone and stabilizing arms comprising ethylenically unsaturated monomer, the backbone being insoluble and the arms being soluble in the composition; a melamine crosslinker; and an acrylic polyol; p, t., R 4 , R 5 defined in the text.
Abstract:
A polymer composition containing a specific silyl group-containing polymer, in which the maximum size of particles contained therein is 2 µm or less, and the number of particles having a size of 0.2 µm to 2 µm is 1,000 particles/ml or less. The composition may further contain a specific compound or at least one component selected from an organosilane represented by (R 1 ) n Si(X) 4-n , a hydrolyzate of the organosilane and a condensate of the organosilane. The composition is excellent in storage stability, high in hardness and excellent in mechanical strength such as wear resistance, so that a coating film having good taking-up properties even when no lubricant is contained, extremely smooth and having no difference in film thickness can be formed.
Abstract:
A coating composition comprising the reaction product of a benzotriazole compound having a polymerizable vinyl group and a hydroxyl group with a silane compound and/or a (partial) hydrolyzate thereof is applied to plastic substrates, typically polycarbonate resin substrates to form transparent coatings having improved mar, weather and chemical resistance.
Abstract:
The invention relates to a polymer dispersion containing water and at least 60 wt. % of an organic polymer which has at least one group of general formula (I) A-Si(Z)n(OH)3-n. The invention also relates to a composition containing at least one organic polymer which has at least one group of general formula (I), and at least one other organic polymer or a mixture of two or more other organic polymers.
Abstract:
A radiation-curable composition for use as an optical fiber material or coating comprising the combination of the following pre-mixture ingredients: (A) about 5 wt.% to about 95 wt.& of one or more radiation-curable oligomers, (B) about 5 wt.% to about 95 wt.% of one or more monomer diluents, (C) optionally, one or more photoinitiators, (D) about 0.1 wt.% to about 30 wt.% of one or more adhesion promoters represented by: R1-L-Si(OR2)3 wherein R1 is a group comprising an ethylenically unsaturated radiation-curable group; and said three R2 groups independently of each other are C¿1?-C10 groups; and L is a linking group which comprises one or more alkoxy or branched propoxy groups.
Abstract:
Curable compositions comprising stable, water dispersible, curable polymers containing sterically hindered alkoxylated silane groups and acid groups blocked by fugitive bases at 0.1 to 75 weight percent of the total composition and water at 99.9 to 25 weight percent of the total composition are taught herein, as well as methods for the use and manufacture thereof. Additional components, such as emulsifiers, buffers and thickeners are also taught. These compositions are useful as adhesives, sealants and paints. The compositions have improved properties including solvent resistance, adhesion, hardness, abrasion resistance and mar resistance.
Abstract:
The present invention provides stable alkoxy silane containing compositions and methods for the preparation of a stable silane containing composition comprising: (I) a water insoluble or slightly soluble alkoxy silane; (II) emulsifier; (III) water; and (IV) water dispersible or emulsified polymer containing an alkoxy silane functional group. Also provided are two part systems such that an alkoxy silane emulsion comprising components (I)-(III) are combined and the component (IV) may be added upon use of components (I) to (III). Moreover, additional components (V) such as catalysts and pH buffers may be added. The compositions of the present invention are stable for at least about three to twelve months.
Abstract:
An aqueous composition employed to form protective film coatings on, for example, automobile body surfaces, comprises an aqueous resin having polysiloxy groups and a cross-linking agent including an amino resin, and a non-yellowing, multi-functional, blocked isocyanate compound. Thus composed, the aqueous composition can be employed to form a transparent superficial film over a pigmented base film in a multi-film aqueous coating exhibiting acid-proof and water-repellent characteristics. A process in which the base film is preheated is effective for improving the appearance of the surface coating.