The invention relates to an aqueous polymer dispersion comprising: a) an aqueous polymer dispersion comprising grafted rubber polymeric particles from rubber polymer being selected from natural or synthetic rubber, b) an aqueous polymer dispersion with polymeric particles of a second polymer comprising monomeric units derived front a monomeric composition b) comprising: b1) a (meth)acrylate of a linear or branched alcohol in C.sub.4 to C.sub.10 or a mixture of such (meth)acrylates, said (meth)acrylate having Tg.sub.b1 lower than −30° C., b2) optionally, at least one comonomer having Tg.sub.b2 higher than −30° C.,
with said grafted rubber polymeric particles being grafted in an aqueous dispersion by a part of said monomeric composition b) as defined above. The invention covers a process of preparation of said dispersion, an adhesive composition comprising said dispersion, the use of said dispersion in pressure sensitive adhesives, and the resulting adhesive.

An adhesive tape for winding around cables includes a carrier (T) with a first layer (1) made of woven fabric and with a second layer (2) made of a sewn bonded fiber fleece, wherein both layers rest fully upon each other. Between the first layer (1) and second layer (2) there is a first adhesive layer (3), wherein the second layer (2) features at least in part a second adhesive layer (4) which is arranged on the opposite side to the first adhesive layer (3). The first layer (1) features a surface weight of 100 to 200 g/m.sup.2, wherein the material of the first adhesive layer (3) comprises an adhesive and the material of the second adhesive layer (4) comprises an adhesive. The second layer (2) features a surface weight of 60 to 160 g/m.sup.2.

Provided is a PSA sheet capable of suitably preventing bubble formation caused by outgassing. This invention provides a PSA sheet comprising a PSA layer that forms an adhesive face. In an aging test where the adhesive face is press-bonded to a glass plate and stored at 50° C. for 24 hours, the PSA sheet has at least 5% post-aging non-bonding area Sa, with Sa defined as the ratio of all areas non-bonding to the glass plate relative to the total area of the adhesive face. The non-bonding areas have parts linearly extending along the adhesive face.

An uncured or partially cured foxing tape (10) comprises: a two-layer structure of a base foxing tape (11) and an uncrosslinked or partially crosslinked adhesive (12), wherein the base foxing tape (11) comprises an uncured or partially cured rubber, wherein the base foxing tape (11) has a first side and a second side opposite the first side, wherein the uncrosslinked or partially crosslinked adhesive (12) is in contact with the uncured or partially cured rubber on the second side of the base foxing tape (11), wherein the uncrosslinked or partially crosslinked adhesive (12) comprises: an uncured or partially cured rubber; a tackifying resin; and a filler.

A pneumatic vehicle tire including at least one sound absorber adhesively attached to the inner surface opposite the tread in the interior of said tire, wherein the at least one sound absorber adheres to an adhesive, and to an adhesive composition for securing at least one sound absorber to a surface of a pneumatic vehicle tire. The adhesive includes 10% to 80% by weight of at least one rubber, 11% to 80% by weight of at least one polyolefin and 2% to 20% by weight of at least one hydrocarbon resin. The adhesive has optimized flow characteristics and an optimized stickiness.

An object of the present invention is to provide an emulsion-based adhesive having excellent adhesive force, excellent heat resistance of adhesive force, excellent holding power, less adhesive residue and good “tack”.

According to the present invention, an emulsion-based adhesive comprising: a styrene-butadiene rubber; a natural rubber; and a tackifier, wherein a gel fraction of the styrene-butadiene rubber is 20 to 60% by mass, a content of the natural rubber with respect to 100 parts by mass of the styrene-butadiene rubber is 10 to 35 parts by mass, a content of the tackifier with respect to 100 parts by mass of the styrene-butadiene rubber is 100 to 150 parts by mass, and a ratio of a styrene monomer unit in a total amount of the styrene-butadiene rubber and the natural rubber contained in the adhesive is 5 to 15% by mass, is provided.

An object of the present invention is to provide an emulsion-based adhesive having excellent adhesive force, excellent heat resistance of adhesive force, excellent holding power, less adhesive residue and good “tack”.

According to the present invention, an emulsion-based adhesive comprising: a styrene-butadiene rubber; a natural rubber; and a tackifier, wherein a gel fraction of the styrene-butadiene rubber is 20 to 60% by mass, a content of the natural rubber with respect to 100 parts by mass of the styrene-butadiene rubber is 10 to 35 parts by mass, a content of the tackifier with respect to 100 parts by mass of the styrene-butadiene rubber is 100 to 150 parts by mass, and a ratio of a styrene monomer unit in a total amount of the styrene-butadiene rubber and the natural rubber contained in the adhesive is 5 to 15% by mass, is provided.

Presently described are polylactic acid polymer based films comprising a structured surface and articles. In one embodiment, the film comprises a semicrystalline polylactic acid polymer; a second polymer such as polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25° C.; and plasticizer. Articles are also described such as a tape or sheet, comprising the structured PLA-based film and a layer of (e.g. pressure sensitive) adhesive disposed on the film. In some embodiments, the tape or sheet further comprises a low adhesion backsize or a release liner. The article can be suitable for various end-uses. In one embodiment, the tape is a paint masking tape. In another embodiment, the tape is a floor marking tape.

The present disclosure relates generally to cohesive compositions, articles including a cohesive composition, and methods of making such compositions and articles. In some embodiments, the cohesive compositions include rubber, thermoplastic elastomer, filler, and UV or heat stabilizers. In some embodiments, the cohesive articles include the cohesive composition described herein adjacent to a backing. In some embodiments, the cohesive articles further include at least one of a tie layer and a seal layer. Some embodiments of the present disclosure further relate to packaging materials that include the cohesive articles of the present disclosure. Such packaging materials may also include, for example, a cushioning layer and an outer layer. In other embodiments, the present disclosure relates to fastening systems comprising cohesive compositions and films described herein.

The present disclosure relates generally to cohesive compositions, articles including a cohesive composition, and methods of making such compositions and articles. In some embodiments, the cohesive compositions include rubber, thermoplastic elastomer, filler, and UV or heat stabilizers. In some embodiments, the cohesive articles include the cohesive composition described herein adjacent to a backing. In some embodiments, the cohesive articles further include at least one of a tie layer and a seal layer. Some embodiments of the present disclosure further relate to packaging materials that include the cohesive articles of the present disclosure. Such packaging materials may also include, for example, a cushioning layer and an outer layer. In other embodiments, the present disclosure relates to fastening systems comprising cohesive compositions and films described herein.