| 摘要 |
This invention provides for a coating composition comprising: (A) at least one polymeric material selected from (i) at least one homopolymer of ethylene having a melt index of at least about 220 grams per ten minutes as determined by ASTM D1238, condition 190/2.16, or (ii) at least one copolymer of ethylene and a second ethylenically unsaturated monomer having a melt index of at least about 20 grams per ten minutes as determined by ASTM D1238, condition 190/2.16, or (iii) at least one thermoplastic acrylic homopolymer or copolymer having a glass transition temperature (Tg) of greater than 0 DEG C but less than 110 DEG C, or (iv) a mixture of (i), (ii) and/or (iii); and (B) at least one thermoplastic polymeric material different than (A) having a melting point in the range of about 80 DEG C to about 130 DEG C and being miscible with (A) and wherein the viscosity of the polymer composition (A) and (B) is in the range of about 5,000 cps to about 100,000 cps at a temperature range of about 200 DEG F to about 300 DEG F. The invention further provides for a process for applying the foregoing coating composition to a substrate such as glass, ceramic, metal, fiberboard, textile or plastic substrate (e.g., glass jars or bottles) preferably using hot melt screen printing; the process employs a low-temperature cure that requires only a relatively brief cure time (e.g., less than about one second). The coating composition can be reheated to obtain higher gloss and/or enhance the adhesion of the coating to the substrate. |
