A process for the continuous and solvent-free production of a pressure-sensitive adhesive based on solid EPDM rubber, the pressure-sensitive adhesive produced thereby, and an adhesive tape containing the pressure-sensitive adhesive. The pressure-sensitive adhesive is produced in a continuously operating assembly in the form of a planetary roller extruder having a filling section and a compounding section, the compounding section consisting of at least two coupled roller cylinders, by

a) feeding the solid EPDM rubber and any further components into the filling section of the planetary roller extruder,
b) transferring the components from the filling section into the compounding section,
c) adding liquid EPDM rubber, plasticizer, tackifier resin, and any further components to the compounding section, and
d) discharging the resultant pressure-sensitive adhesive,
which process comprises feeding the solid EPDM rubber as a melt into the filling section.

Disclosed is a hot melt adhesive composition that includes a first amorphous alpha-olefin copolymer derived from propylene and at least one olefin comonomer other than propylene, the first amorphous alpha-olefin copolymer having a viscosity from 750 centipoise (cP) to less than 50,000 centipoise at 190 C., a second polyolefin derived from propylene and optionally a comonomer, the second polyolefin exhibiting a heat of fusion from 15 Joules per gram (J/g) to no greater than 50 J/g, a hydrogenated styrenic block copolymer that includes styrene polymer blocks and at least one hydrogenated conjugated diene polymer block, tackifying agent, and liquid plasticizer.

A high performance hot melt adhesive composition with higher heat stress and higher adhesion values at lower temperatures than a conventional hot melt adhesive is provided. Smaller quantities of the high performance hot melt may be used to provide similar performances as conventional hot melt adhesives.

A pressure-sensitive adhesive (PSA) composition and method of use across a wide operable temperature window. The PSA composition includes a triblock copolymer rubber with relatively low diblock content, an aliphatic tackifier, an aromatic tackifier, and an oil-based plasticizer. The combination of components results in the PSA having a phase-separated morphology, where the PSA includes two domains that do not mix with each other. This morphology results in superior performance of the PSA across a wide range of temperatures, such that separate adhesives for low temperatures and high temperatures are no longer required.

The present technology provides a hot melt composition containing: styrene-based thermoplastic elastomer having a weight average molecular weight of 300000 or more; tackifier; a first paraffin oil having a weight average molecular weight of 1000 or more; and a second paraffin oil having a weight average molecular weight of less than 1000.

A styrene-isoprene-styrene triblock copolymer, a method for manufacturing the same, a composition, and an adhesive composition using the same are provided. The styrene-isoprene-styrene triblock copolymer includes a first polystyrene block, a polyisoprene block, and a second polystyrene block. Based on 100 wt % of the styrene-isoprene-styrene triblock copolymer, the content of the first polystyrene block and the second polystyrene block is 30-50 wt %, and the content of the polyisoprene block is 70-50 wt %. The weight average molecular weight (Mw) of the styrene-isoprene-styrene triblock copolymer is 40,000-75,000.

A battery cell stack of the present invention includes a plurality of battery cells and a resin layer wholly or partially in contact with an outer surface of at least one of the plurality of battery cells, wherein the resin layer includes a solvent-free adhesive and a flame retardant, and has a peel strength of 1,000 gf/in to 3,000 gf/in measured according to ASTM D3330, and a shear strength of 20 kgf/sq-in to 100 kgf/sq-in measured according to ASTM D1002, and the flame retardant includes one or more of a phosphorus-based flame retardant and a nitrogen-based flame retardant, such that the operational stability and flame retardancy may be simultaneously improved, while simplifying materials and processes necessary to manufacture the battery cell stack.

Adhesive compositions that replace gaskets and liners in sealing applications for packages that are detachable with hand force are described. The adhesive compositions are particularly useful in preventing leaks and spillage during storage and transport of its packaged contents. Advantageously, the adhesive composition provides packages with (1) a removal torque of from about 4 to about 20 in-lb and (2) resealable torque on subsequent openings of from about 2 to about 15 in-lb, measured in accordance to ASTM D2063.

The invention relates to contact adhesive compounds containing 5 to 50 wt % copolymers of propylene having ethylene and/or having olefins, selected from the group of 1-olefins having 4 to 20 C atoms, wherein the copolymers have been produced with the aid of metallocene catalysts and are characterized by a) a flow point, measured in accordance with ASTM D97, of <50 C., b) a viscosity at 170 C. in the range from 20 to 3000 mPa.Math.s, measured with a rotary viscometer to DIN 53019, c) a density in the range from 0.84 to 0.90 g/cm.sup.3, measured at 23 C. in accordance with ISO 1183, d) a glass transition temperature of <35 C., measured in accordance with the DSC method according to DIN EN ISO 11357-2:2014.

In some embodiments, a formliner comprises a body comprising a defining a plurality of cavities arranged in a repeating pattern. A sealant is provided in each cavity. The sealant comprises a gel mixture of wax and vegetable oil. In some embodiments, the wax comprises carnauba wax and/or beeswax.