Surgical pressure sensitive adhesive sheet product

Details Surgical pressure sensitive adhesive sheet product Surgical pressure sensitive adhesive sheet product

1988-05-27

1989-11-07

Ziegler, Jacob

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

1563318, 604386, 604389, C09J 702, C09J 704

Patent

active

048791784

ABSTRACT:
What is disclosed are novel hot melt adhesives having pressure sensitive properties that are comprised of a combination of two acrylic-based copolymers containing the novel monomer 1(2)-methyl-3-oxa-4-oxo-5-aza-nonyl methacrylate, one of the copolymers being a low glass transition temperature (Tg) compolymer and the other a high Tg copolymer and which hot melt adhesives, by means of reversible hydrogen bond formation and dissociation, possess the reversible properties of providing a strong cohesive strength at ambient temperature but also having a melt viscosity at elevated coating temperatures such that it can be used in hot melt coating equipment; a process for making said hot melt adhesives; and a process for making adhesive tapes and bandages using said adhesives.

REFERENCES:
patent: 4045517 (1977-08-01), Guerin et al.
patent: 4112213 (1978-09-01), Waldman
patent: 4495243 (1985-01-01), Kishi
patent: 4505976 (1985-03-01), Doehnert et al.

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