Adhesive tape particularly for packaging use
View Patent ↗A unilaterally self-adhesively coated adhesive tape, comprising: (a) a film based on thermoplastic polymers and (b) an adhesive layer applied to one side of the film, prepared from a mixture comprising: from 35 to 69.5 by weight of a natural rubber latex; from 20 to 64.5% by weight of a resin dispersion based on a hydrocarbon resin; from 0.5 to 20% by weight of an oil-based additive; and from 0.001 to 3% by weight of a defoamer based on an organically modified polysiloxane.
1. A unilaterally self-adhesively coated adhesive tape, comprising
a. a film based on thermoplastic polymers,
b. an adhesive layer applied to one side of the film, prepared from a mixture comprising
from 35 to 69.5 by weight of a natural rubber latex,
from 20 to 64.5% by weight of a resin dispersion based on a hydrocarbon resin,
from 0.5 to 20% by weight of an oil-based additive, and
from 0.001 to 3% by weight of a defoamer based on an organically modified polysiloxane.
2. The tape as claimed in claim 1 , wherein the film is comprised of oriented polyolefins and/or has a thickness of between 20 and 50 μm.
3. The tape as claimed in claim 1 , wherein the film is comprised of biaxially oriented polypropylene-based film and/or has a thickness of between 15 and 100 μm.
4. The tape as claimed in claim 1 , wherein the film is comprised of monoaxially oriented polypropylene-based film and/or has a thickness of between 25 and 200 μm.
5. The tape as claimed in claim 1 , which further comprises of a layer of a primer between the film and the adhesive layer.
6. The tape as claimed in claim 1 , wherein the adhesive layer was applied to the film at a rate of 10 to 45 g/m 2 .
7. The tape as claimed in claim 1 , wherein the adhesive layer further comprises of optional ingredients selected from the group consisting of:
from 0.1 to 5% by weight of an aging inhibitor,
from 0.05 to 20% by weight of at least one color pigment, and/or
from 0.05 to 10% by weight of a stabilizer; and
mixtures thereof.
8. The tape as claimed in claim 1 , wherein from 0.1 to 5% by weight based on the total weight of the tape of aging inhibitors based on phenols are added to the adhesive composition.
9. The tape as claimed in claim 1 , wherein the unwind noise at a distance of 25 cm from the adhesive tape is less than 80 dB(A).
10. A method of sealing a paper package, said method comprising applying to said paper package to seal said paper package a tape as claimed in claim 1 .
11. The tape as claimed in claim 3 , wherein the film is comprised of biaxially oriented polypropylene-based film and/or has a thickness of between 25 and 50 μm.
12. The tape as claimed in claim 4 , wherein the film is comprised of monoaxially oriented polypropylene-based film and/or has a thickness of between 40 and 130 μm.