Gel composition, heat sealable substrates, and process for heat

Details Gel composition, heat sealable substrates, and process for heat Gel composition, heat sealable substrates, and process for heat

1974-11-11

1977-04-26

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

260 23R, 260 23H, 260 233, 428349, 428500, 428510, 428514, 428516, 428518, 428520, 428522, 428532, 428537, C09J 702, B32B 2732

Patent

active

040202283

ABSTRACT:
The invention disclosed is directed to a gel composition, including (a) an aliphatic saturated monocarboxylic acid having from about 10 to about 24 carbon atoms; (b) an interpolymer of ethylene and a vinyl ester of a monocarboxylic acid having from 1 to about 4 carbon atoms; (c) a tackifying resin; and (d) an organic solvent. Substrate surfaces to which the gel composition is applied typically exhibit good resistance to blocking and may be effectively heat sealed to other surfaces at relatively low temperatures in minimum time. In aspects of the invention the coated substrates may be polyolefinic or cellulosic sheet materials, including laminates thereof with vinylidene chloride interpolymer layers. Improved heat sealable substrates and processes for heat sealing are also described.

REFERENCES:
patent: 2492760 (1949-12-01), Murphy
patent: 2543229 (1951-02-01), Chapman
patent: 3158520 (1964-11-01), Edmonds
patent: 3201302 (1965-08-01), Williams
patent: 3245931 (1966-04-01), Mathew
patent: 3417040 (1968-12-01), Kremer
patent: 3522081 (1970-07-01), Moyer
patent: 3524795 (1970-08-01), Peterson
patent: 3642676 (1972-02-01), Saunders
"Materials and Compounding Ingredients for Rubber and Plastics", p. 383, 1965, New York, N.Y.

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