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693results about "Wax coatings" patented technology

Quick-drying primer-topcoat two-in-one steel member paint and preparation method thereof

The invention relates to quick-drying primer-topcoat two-in-one steel member paint and a preparation method thereof. The steel member paint is prepared from the following components by weight: 20-38 parts of synthetic resin, 10-20 parts of antirust pigment, 6-12 parts of coloring pigment, 5-11 parts of fillers, 1-4 parts of auxiliary agents, and 32-50 parts of solvents. The preparation method comprises the following steps: adding 85-95 wt% of solvents into a stirring tank, adding synthetic resin, stirring to completely dissolve the synthetic resin; adding part of auxiliary agents, antirust pigment, coloring pigment, and fillers into the stirring tank to obtain color slurry; grinding the color slurry by a sand grinder to allow the fineness of the color slurry to be not more than 40 microns; adding the rest of the auxiliary agent into the grinded color slurry, and adjusting the viscosity to 120-150 s by using the rest of the solvent to obtain the quick-drying primer-topcoat two-in-one steel member paint. When compared with the prior art, the quick-drying primer-topcoat two-in-one steel member paint of the invention has good antirust performance and drying speed, does not sag after thick coating, can realize undercoating at a time, is suitable for protection and decoration of large and medium sized steel members, and is simple in preparation method and wide in application scope.

Formulation for achievement of oil and grease resistance and release paper properties

A formulation, and a process for making same, is disclosed which is useful as a coating or treatment for imparting oil and grease resistance to an underlying substrate. The formulation does not contain any fluorochemicals. At the same time, however, the formulation provides oil and grease resistance properties that are equivalent to known coatings and treatments which contain fluorochemicals, particularly those coatings which are permitted to come into direct contact with food products. Therefore, the formulation of the present invention is ideal for use as a coating for paper and paperboard, including paper packaging such as that utilized in food wrappers, food containers, food receptacles and the like, and for other shaped articles. The formulation is also useful as a coating or treatment for providing release properties to an underlying substrate without the use of silicone. In addition, the present invention relates to the process for making the underlying substrate ideal for holdout of the release coating without excessive fiber refining, as in glassine papers. The formulation is a low solids coating that can be applied on the size press of a paper machine, eliminating the need for a post-machine coating process. The formulation does not include silicone, thereby allowing the release paper to be re-pulped. The wet end additive that provides sheet holdout combines with the release formulation to provide a release paper for pressure sensitive adhesives.
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