摘要:
An aqueous coating composition is provided containing up to 50 weight percent, based on the total solids, of a cellulose mixed ester and a compatible amine neutralized acrylic resin.
摘要:
An aqueous coating composition comprises (a) a hydrophilic binder; (b) an ester of cellulose having at least 8 acyl groups per C.sub.24 cellulose unit wherein at least a majority of the acyl groups are derived from an aliphatic polycarboxylic acid having from 3 to 6 carbon atoms; or a salt of the ester; and (c) a hardening agent in an amount sufficient to render the composition water-insoluble after coating and drying of the composition. This coating composition is useful for forming water-insoluble, conductive and highly-adherent layers in composite bases or elements, and particularly in photographic elements having hydrophobic supports. The conductive layers can be used, for example, as conducive subbing layers or conductive pelloid layers.
摘要:
coating compositions are disclosed which provide improved resistance to the transmission of vapor through various substrates, especially paper, paperboard and regenerated cellulose. The compositions comprise one or more cellulose esters, and a small amount of a blend of paraffin and an amide of a long chain saturated or unsaturated fatty acid. The composition is in a conventional solvent and preferably includes conventional plasticizers. Conventional additives such as pigments, stabilizers, etc., may be used.
摘要:
This invention provides a non-corrosive solvent casting composition comprising at least one anti-corrosive selected from the group consisting of (a) non-volatile epoxides; (b) oxides of compounds from the group consisting of styrene, higher homologs of styrene, and simple nuclear substitution products of styrene; (c) 2,2-dimethoxy propane; and (d) 1,4-dioxane.
摘要:
A lacquer comprising a homogeneous or heterogeneous dispersion of a linear polyester in a solution of a film-forming polymer in a liquid. Useful linear polyesters are polymers of ethylene terephthalate, ethylene isophthalate, ethylene orthophthalate, propylene terephthalate, propylene isophthalate, propylene orthophthalate and copolymers of two or more of these. Especially suitable film-forming polymers for use with the invention are copolyesters of ethylene glycol, terephthalic acid and isophthalic acid. Particularly suitable liquids for use with the invention are ethylene carbonate and propylene carbonate. In preference in the lacquer the proportion by weight of linear polyester is in the range 2 percent to 30 percent, but preferably in the range 5 percent to 20 percent, of the total weight of linear polyester plus film-forming polymer in the lacquer. In a preferred lacquer the proportion by weight of linear polyester plus film-forming polymer based on the total weight of lacquer is in the range 5 percent to 35 percent, but is more preferably in the range 10 percent to 20 percent.
摘要:
The present invention discloses a heat-sealable textile sheet material having a substrate on the basis of a woven fabric, knitted fabric, optionally with weft insertion, or a nonwoven fabric and an adhesive coating applied thereto, which is characterized in that 70-100% by weight of the adhesive coating consists of renewable raw materials.