A foamable ink composition which comprises a water-based printing ink, a foaming agent and a pseudoplastic additive. The ink, foaming agent and pseudoplastic additive are foamed with a compressed gas. The pseudoplastic additive aids in the mixing of the ink with the gas and enhances the stability of the foam. The foam is especially adapted for application to a gravure cylinder where it is doctored to convert the foam bubbles into thin discrete membranes spanning the gravure cells. These membranes then are transferred, either directly or indirectly to a moving web.
A coating formulation for making a porous coating on a laboratory apparatus is provided. The formulation comprises 100 parts by weight hardenable resinous material, and from about 0.1 to about 50 parts by weight blowing agent based on the 100 parts by weight resinous material. The resinous material has a hardening time which is sufficiently short such that gas generated by the blowing agent is entrapped within the resinous material. The coating formulation is hardenable upon application to a surface of a laboratory apparatus to form a porous coating which is used for marking purposes or for the retention of biological samples. Methods of retaining a biological sample on a coated laboratory apparatus having a surface made of the coating formulation are also provided.
The present invention contemplates an aerosol composition adapted for providing a foam upon discharge from a suitable containment means, said composition comprising (a) a propellant, (b) water, (c) a water-insoluble polymer, (d) a surfactant, (e) a foam stabilizing agent, and (f) a solvent adapted for solvating said foam stabilizing agent, said foam remaining stable up to about ninety days if left undisturbed.
A coating formulation for making a porous coating on a laboratory apparatus is provided. The formulation comprises 100 parts by weight hardenable resinous material, and from about 0.1 to about 50 parts by weight blowing agent based on the 100 parts by weight resinous material. The resinous material has a hardening time which is sufficiently short such that gas generated by the blowing agent is entrapped within the resinous material. The coating formulation is hardenable upon application to a surface of a laboratory apparatus to form a porous coating which is used for marking purposes or for the retention of biological samples. Methods of retaining a biological sample on a coated laboratory apparatus having a surface made of the coating formulation are also provided.
A coating formulation for making a porous coating on a laboratory apparatus is provided. The formulation comprises 100 parts by weight hardenable resinous material, and from about 0.1 to about 50 parts by weight blowing agent based on the 100 parts by weight resinous material. The resinous material has a hardening time which is sufficiently short such that gas generated by the blowing agent is entrapped within the resinous material. The coating formulation is hardenable upon application to a surface of a laboratory apparatus to form a porous coating which is used for marking purposes or for the retention of biological samples. Methods of retaining a biological sample on a coated laboratory apparatus are also provided.
A method for making decorative grass having a three-dimensional pattern which constitutes at least a portion of the decor of the decorative grass. Printed designs or materials and/or embossed materials can also constitute a portion of the decor of the decorative grass. The method includes slitting a material having a three-dimensional pattern on at least a portion of at least one surface thereof and then cutting the slit material into segments of a predetermined length to provide the decorative grass having a three-dimensional pattern.
