LATENT REACTIVE ADHESIVE FILM
    22.
    发明公开

    公开(公告)号:US20230323170A9

    公开(公告)日:2023-10-12

    申请号:US17983188

    申请日:2022-11-08

    Applicant: tesa SE

    Abstract: The invention relates to an adhesive film which comprises a layer of an adhesive that comprises one or more polymers and at least one peroxide, characterized in that the adhesive comprises at last 50% by weight of thermoplastic polymers that do not have C═C multiple bonds, in that at least one peroxide has the general structural formula R—O—O—R′, wherein R and R′ each represent organyl groups or together represent a cyclic organyl group, and in that the peroxide in solution has a 1-minute half-life temperature of less than 200° C. In a preferred embodiment, the thermoplastic polymer is a polyurethane and the peroxide is a dicumyl peroxide.

    Latent reactive adhesive film
    24.
    发明授权

    公开(公告)号:US11535778B2

    公开(公告)日:2022-12-27

    申请号:US17051074

    申请日:2019-04-26

    Applicant: tesa SE

    Abstract: The invention relates to an adhesive film which comprises a layer of an adhesive that comprises one or more polymers and at least one peroxide, characterized in that the adhesive comprises at last 50% by weight of thermoplastic polymers that do not have C═C multiple bonds, in that at least one peroxide has the general structural formula R—O—O—R′, wherein R and R′ each represent organyl groups or together represent a cyclic organyl group, and in that the peroxide in solution has a 1-minute half-life temperature of less than 200° C. In a preferred embodiment, the thermoplastic polymer is a polyurethane and the peroxide is a dicumyl peroxide.

    LATENT REACTIVE ADHESIVE FILM
    25.
    发明申请

    公开(公告)号:US20210214593A1

    公开(公告)日:2021-07-15

    申请号:US17051074

    申请日:2019-04-26

    Applicant: tesa SE

    Abstract: The invention relates to an adhesive film which comprises a layer of an adhesive that comprises one or more polymers and at least one peroxide, characterized in that the adhesive comprises at last 50% by weight of thermoplastic polymers that do not have C═C multiple bonds, in that at least one peroxide has the general structural formula R—O—O—R′, wherein R and R′ each represent organyl groups or together represent a cyclic organyl group, and in that the peroxide in solution has a 1-minute half-life temperature of less than 200° C. In a preferred embodiment, the thermoplastic polymer is a polyurethane and the peroxide is a dicumyl peroxide.

    Pressure-sensitive adhesive, and self-adhesive products and composites comprising the latter

    公开(公告)号:US10793751B2

    公开(公告)日:2020-10-06

    申请号:US16070149

    申请日:2017-02-07

    Applicant: TESA SE

    Abstract: The invention relates to a block copolymer-containing pressure-sensitive adhesive comprising e) 52% by weight to 65% by weight, preferably 55% by weight to 62% by weight, of an elastomer component, f) 30% by weight to 45% by weight, preferably 35% by weight to 42% by weight, of at least one bonding resin, g) 0% by weight to 15% by weight, preferably to 10% by weight, of at least one softening resin and h) 0% by weight to 18% by weight, preferably to 10% by weight, of further additives, where the elastomer component (a) consists to an extent of at least 90% by weight of polyvinylaromatic-polybutadiene block copolymers, where the polyvinylaromatic-polybutadiene block copolymers include at least one type of diblock copolymer (a1) and at least one type of tri- or multiblock copolymer (a2), the at least one diblock copolymer (a1) has a vinylaromatic content of 15% by weight to 45% by weight, within the elastomer component (a) the proportion of tri- or multiblock copolymer (a2) is between 25% by weight and 50% by weight, preferably between 30% by weight and 45% by weight, the tri- or multiblock copolymer (a2) has a molar mass of at least 125 000 g/mol and a vinylaromatic content of 15% to 45% by weight, and one kind of the tri- or multiblock copolymer is preferably a multi-arm (radial) block copolymer.

    Linear for protection of adhesives
    27.
    发明授权

    公开(公告)号:US10386209B2

    公开(公告)日:2019-08-20

    申请号:US15626664

    申请日:2017-06-19

    Applicant: tesa SE

    Abstract: Release liners and methods protect one or more adhesives, wherein the release liners and/or methods comprise at least one abhesive release layer and at least one layer of a getter material capable of sorbing at least one permeable substance, wherein the getter material is at least one substance selected from the group consisting of lithium, beryllium, boron, sodium, magnesium, potassium, calcium, manganese, iron, nickel, zinc, gallium, germanium, cadmium, indium, caesium, barium, boron oxide, calcium oxide, chromium oxide, manganese oxide, iron oxide, copper oxide, silver oxide, indium oxide, barium oxide, lead oxide and mixtures of two or more of the above substances.

    Detachable adhesive strip
    30.
    发明授权

    公开(公告)号:US11084958B2

    公开(公告)日:2021-08-10

    申请号:US14653498

    申请日:2013-12-05

    Applicant: TESA SE

    Abstract: The invention relates to an adhesive film strip comprising at least two, particularly three, layers, which adhesive film strip can be detached without residues and nondestructively by expansive stretching substantially in the adhesion plane, with a carrier on which a first external adhesive compound layer is present on at least one side, wherein • the adhesive compound layer consists of adhesive compound formed on the basis of vinyl aromatic block copolymers and adhesive resins, wherein at least 75% of the resin (relative to the overall resin content) is selected with a DACP (diacetone alcohol cloud point) of greater than −20° C., preferably greater than 0° C., and • the carrier has at least one layer consisting of a polyurethane with an elongation at break of at least 100% and a restoring power of more than 50%. A nonpolar hydrocarbon resin or a polyterpene resin is particularly used as the tackifier for the adhesive compound(s).

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