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US 12,227,677 B2Granted
Adhesive suitable for an on-the-fly roll change of materials with low-energy surfaces
AssigneeTesa SE
InventorsJulia Garbers, Thilo Dollase, Niels Czerwonatis, Felix Köstner
Life of this patent
Estimating the term…
Abstract
An adhesive that comprises: (a) 35 to 55 wt. % of an elastomer component; (b) 20 to 45 wt. % of an adhesive resin component; and (c) 15 to 40 wt. % of a plasticizing component, wherein (c1) 8 to 35 wt. % of (c) is made of one or more plasticizing oils, and (c2) optionally up to 32 wt. % of (c) is made of one or more plasticizers that differ from plasticizing oils.
Claims20
An adhesive tape, comprising:
- at least first and second external layers of adhesive, wherein the first external layer of adhesive is an adhesive (I) comprising:
- (a) 35 to 55 wt % of an elastomer component, the elastomer component comprising one or more polyvinylaromatic-polydiene block copolymers;
- (b) 20 to 45 wt % of a tackifier resin component, the tackifier resin component comprising at least one tackifier resin having a diacetone alcohol cloud point (DACP) of at least −20° C. and a softening temperature (Ring & Ball) of at least 85° C.;
- and
- (c) 15 to 40 wt % of a plasticizing component, wherein
- (c1) 8 to 35 wt % of (c) comprises one or more plasticizing oils, and
- (c2) up to 32 wt % of (c) comprises one or more non-mineral-oil plasticizers having a softening temperature of less than 30° C. (Ring & Ball);
- wherein the second external layer of adhesive differs compositionally from the first external layer of adhesive.
5 more elements
An adhesive tape, comprising:
- at least two external layers of adhesive, wherein at least one of the at least two external layers is an adhesive (I) comprising:
- (a) 35 to 55 wt % of an elastomer component, the elastomer component comprising one or more polyvinylaromatic-polydiene block copolymers;
- (b) 20 to 45 wt % of a tackifier resin component, the tackifier resin component comprising at least one tackifier resin having a diacetone alcohol cloud point (DACP) of at least −20° C. and a softening temperature (Ring & Ball) of at least 85° C.;
- and
- (c) 15 to 40 wt % of a plasticizing component, wherein
- (c1) 8 to 19 wt % of (c) comprises one or more plasticizing oils, and
- (c2) 16 to 25 wt % of (c) comprises one or more non-mineral-oil plasticizers having a softening temperature of less than 30° C. (Ring & Ball).
4 more elements
An adhesive tape, comprising:
- at least two external layers of adhesive on a dividable carrier, wherein at least one of the at least two external layers is an adhesive (I) comprising:
- (a) 35 to 55 wt % of an elastomer component, the elastomer component comprising one or more polyvinylaromatic-polydiene block copolymers;
- (b) 20 to 45 wt % of a tackifier resin component, the tackifier resin component comprising at least one tackifier resin having a diacetone alcohol cloud point (DACP) of at least −20° C. and a softening temperature (Ring & Ball) of at least 85° C.;
- and
- (c) 15 to 40 wt % of a plasticizing component, wherein
- (c1) 8 to 35 wt % of (c) comprises one or more plasticizing oils, and
- (c2) up to 32 wt % of (c) comprises one or more non-mineral-oil plasticizers having a softening temperature of less than 30° C. (Ring & Ball).
4 more elements
Dependencies are inferred from the claim text.