B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
42/15
B41M 5/155 (2006.01) C09D 11/00 (2006.01)
Patent
CA 1116852
PRODUCTION OF PRESSURE-SENSITIVE CARBONLESS RECORD SHEETS USING DIOIC ACID HOT MELT SYSTEMS AND PRODUCTS THEREOF Frederick W. Sanders Abstract of the Disclosure A process is provided for producing a pressure-sensitive carbonless record sheet comprising the steps of preparing a hot melt coating composi- tion, the hot melt coating composition having a melting point of from about 60°C to about 140°C. The hot melt coating composition comprises a chromo- genic material and a solid aliphatic dioic acid. The hot melt coating composition is heated to a temperature above its melting point and the heated coating composition is applied to a substrate, the coating composi- tion being applied at a coat weight of from about 0.2 pounds to about 8.0 pounds per 3300 square feet of substrate. The coating composition is set by cooling the coated substrate. A pressure-sensitive carbonless record sheet comprising a substrate having a plurality of surfaces and at least one surface of which is coated with about 0.2 pounds to about 8 pounds per 3300 square feet of a set hot melt coating composition is produced. The set hot melt coating composition has a melting point of from about 60°C to about 140°C and comprises a chromogenic material and a solid aliphatic dioic acid. A novel hot melt chromogenic coating composition having a melting point of from about 60 C to about 140°C and comprising a chromogenic material and a solid dioic acid is produced.
315916
Ridout & Maybee Llp
The Mead Corporation
LandOfFree
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