Abstract: The invention provides a method of treating a subterranean formation penetrated by a wellbore, the method comprising the steps of: (a) mixing a particulate and an active material to obtain an at least partially coated particulate, wherein: (i) water forms a contact angle of less than 90 degrees with a surface of the particulate, (ii) the active material is capable of forming a coating on the particulate, (iii) the active material forms a contact angle less than 90 degrees with the particulate, and (iv) water forms a contact angle of greater than 90 degrees with a layer of the active material; (b) mixing the at least partially coated particulate and a carrier fluid to obtain a treatment fluid; and (c) introducing the treatment fluid into the subterranean formation through the wellbore to deposit the at least partially coated particulate into the subterranean formation.

Abstract: The present invention relates to a color-developing agent resin composition, which contains: (1) a phenolic resin represented by formula I; and (2) a blend of graft copolymers of a phenolic resin and a multivalent metal salt polymer of a substituted aryl carboxylic acid, said graft copolymers are represented by (II) and (III). The present invention further relates to a resin emulsion containing the color-developing agent resin composition and a method for preparing the same. The color-developing agent resin composition and the color-developing agent resin emulsion of the present invention are used for no-carbon copying paper as special resin color-developing agents. They have advantages of not only fast developing at a low temperature and bright colors, but also heavy developing strength and good light-aging resistance of writing, and furthermore, their coatings are not easy to turn yellow when they are hold in the air, and the like.

Abstract: A thermal transfer recording medium include a support; and a heat-sensitive transfer layer on the support, and wherein the heat-sensitive transfer layer includes: a resin made from monomer which includes a glycidyl ester of an unsaturated carboxylic acid; and sulfonamide. The present invention also provides a thermal transfer recording method including transferring an image from the thermal transfer recording medium to an image receiving member.

Abstract: A heat sensitive copy system uses a magnetic thermal transfer ribbon to transfer images onto an adjacent medium and near infra-red energy is used to transfer the images from the medium onto thermal paper or onto translucent paper for producing multiple copies in a manner which is not thickness sensitive.