摘要:
A process for forming a metallic paint film comprising(a) coating on a substrate surface a metallic paint containing as a vehicle component a modified vinyl-type copolymer obtained by copolymerizing 5-75 weight % of cellulose acetate butyrate with 95-25 weight % of a monomeric component consisting of one or more vinyl-type monomers,(b) if necessary, coating a thermosetting resin-type clear topcoating while said coated metallic paint film is in the unhardened state and(c) then baking the paint film.
摘要:
A graft copolymer having a polymeric backbone with pendent hydroxyl groups; wherein the hydrogen atom of at least the one the hydroxyl groups is replaced by the formula ##STR1## where R is an aliphatic group, a cycloaliphatic group or an aromatic group; R.sup.1 is an alkylene group having 2-6 carbon atoms; R.sup.2 is a polymer segment of a vinyl addition polymer, such as butyl acrylate/hydroxyethyl acrylate; coating compositions of this copolymer can be cross-linked with conventional cross-linking agents such as an alkylated melamine formaldehyde resin or an organic polyisocyanate and coating compositions useful for flexible elastomeric substrates can be prepared from this copolymer.
摘要:
Starch hybrid copolymers in the form of aqueous dispersions or water-redispersible powders, processes for producing and uses for the same. Where the starch hybrid copolymers obtainable by radically initiated polymerization in aqueous medium of ethylenically unsaturated monomers in the presence of starch or by emulsion polymerization, in aqueous medium of ethylenically unsaturated monomers in the presence of starch. The starch hybrid copolymers may also be obtainable by performing an optional subsequent drying process.
摘要:
Superabsorbent polymer products for use in agricultural applications, and methods of making the same, are provided. The superabsorbent polymer is used in a seed coating along with an active ingredient, and optionally a singulating substance, to improve seed germination and/or blooming; improve germination under dry conditions; decrease irrigation requirements; increase propagation, crop growth, and crop production; and improve the efficacy of the active ingredient.
摘要:
Polysaccharide alkali swellable rheology modifiers include an emulsion polymer including at least one polysaccharide portion and at least one synthetic portion wherein the at least one synthetic portion is obtained from at least one anionic ethylenically unsaturated monomer, at least one nonionic ethylenically unsaturated monomer or a combination thereof, wherein at least one of the nonionic ethylenically unsaturated monomers is a hydrophobic ethylenically unsaturated monomer, as well as methods of making polysaccharide alkali swellable rheology modifiers.
摘要:
A composition for destructive interference in at least a portion of the frequency range from about 1 GHz to about 20 GHz can comprise a dielectric and a conductive filler mixed with at least a portion of the dielectric, wherein the percentage volume of the conductive filler relative to the total volume of the composition is configured such that the wavelength of sensitivity for the composition is on the order of a wavelength of an incident electromagnetic radiation in at least a portion of the frequency range from about 1 GHz to about 20 GHz.
摘要:
A composition for destructive interference in at least a portion of the frequency range from about 1 GHz to about 20 GHz can comprise a dielectric and a conductive filler mixed with at least a portion of the dielectric, wherein the percentage volume of the conductive filler relative to the total volume of the composition is configured such that the wavelength of sensitivity for the composition is on the order of a wavelength of an incident electromagnetic radiation in at least a portion of the frequency range from about 1 GHz to about 20 GHz.
摘要:
A process for the preparation of aqueous polymer dispersions is described, a vinylaromatic compound, such as, for example, styrene, a conjugated aliphatic diene, such as, for example, butadiene, and an ethylenically unsaturated carbonitrile, such as, for example, acrylonitrile, being copolymerized in an aqueous medium. The copolymerization is effected in the presence of a degraded starch and of free radical initiators. At least part of the monomers differing from ethylenically unsaturated carbonitriles are polymerized before the ethylenically unsaturated carbonitriles are added to the polymerization mixture.
摘要:
This invention relates to coatings for wood and improvement in the surface properties of cured coatings of the invention. The invention further relates to a method for improving at least one property such as mechanical, optical or a combination thereof and to a process for preparing a nanocrystalline cellulose-containing hydrodispersible, hydrosoluble and hydrophobic wood coating.
摘要:
Superabsorbent polymer products for use in agricultural applications, and methods of making the same, are provided. The superabsorbent polymer is used in a seed coating along with an active ingredient, and optionally a singulating substance, to improve seed germination and/or blooming; improve germination under dry conditions; decrease irrigation requirements; increase propagation, crop growth, and crop production; and improve the efficacy of the active ingredient.