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US 5,209,973 AGranted
Adhesive paper tapes
AssigneeBeiersdorf AG
InventorsRomanus Wille, Herbert Knolle
Life of this patent
Estimating the term…
Abstract
Adhesive paper tape, obtainable by impregnating and coating a paper which, immediately after the production process and still in the moist state, has been compressed between a rotating roller and a rotating web, and dried and which has a mean weight of 45-80 g/m.sup.2 a mean extensibility of 8-20% a means tensile strength of at least 35N/15 mm and a mean thickness of at most 0.13 mm.
Claims5
An unsized adhesive paper tape produced by
- (a) compressing between a rotating roller and a rotating elastic web a still moist freshly prepared paper, to produce a microcreped paper,
- (b) drying,
- (c) impregnating said paper with a latex,
- (d) coating said paper on at least one side with a primer composition,
- (e) coating one side of said paper with a release adhesive to form a release coat, and
- (f) coating the other side of said paper with an adhesive composition,
- said paper having
- a mean weight of 45-80 g/m.sup.2,
- a mean extensibility of 8-20%,
- a mean tensile strength of at least 35N/15 mm and
- a mean thickness of at most 0.13 mm.
8 more elements
Dependencies are inferred from the claim text.