An objective of the present invention is to provide a hot melt composition having a high form maintaining property at a high temperature and being in excellent adhesion to a substrate and in disassembly. The present invention relates to a hot melt composition comprising: (A1) a styrene-ethylene-ethylene/propylene-styrene block copolymer (SEEPS) and (B1) a hydrocarbon-based oil having an aniline point of 135° C. or more.

The present invention provides a polymer composition for fibers or non-woven fabrics, comprising a vinyl aromatic based copolymer and 0 to 30 wt % of an olefin based polymer based on the total weight of the polymer composition. The vinyl aromatic copolymer is represented by a formula A1-B-A2, wherein block A1 and block A2 are the same or different vinyl aromatic blocks, block A1 or block A2 having 3,800 to 4,800 of a peak molecular weight, and block B is a hydrogenated conjugated diene block. A vinyl structure content of a conjugated diene monomer content in the vinyl aromatic based copolymer is from 32 wt % to 50 wt %; and a melt flow index (MFI) of the vinyl aromatic based copolymer is 20 g/10 min˜60 g/10 min (230° C., 2.16 kg). The present invention also provides the fibers or the non-woven fabrics made from the polymer composition.

The present invention provides a polymer composition for fibers or non-woven fabrics, comprising a vinyl aromatic based copolymer and 0 to 30 wt % of an olefin based polymer based on the total weight of the polymer composition. The vinyl aromatic copolymer is represented by a formula A1-B-A2, wherein block A1 and block A2 are the same or different vinyl aromatic blocks, block A1 or block A2 having 3,800 to 4,800 of a peak molecular weight, and block B is a hydrogenated conjugated diene block. A vinyl structure content of a conjugated diene monomer content in the vinyl aromatic based copolymer is from 32 wt % to 50 wt %; and a melt flow index (MFI) of the vinyl aromatic based copolymer is 20 g/10 min˜60 g/10 min (230° C., 2.16 kg). The present invention also provides the fibers or the non-woven fabrics made from the polymer composition.

The present invention relates to the use of a hot-melt adhesive for adhesive bonding of at least a first packaging and a second packaging, the hot-melt adhesive comprising: (a) 7-48 parts per weight of a polymer component, the polymer component comprising a styrene block copolymer; (b) 15-52 parts per weight of a tackifying component, wherein the tackifying component comprises thermoplastic adhesive resin, aliphatic hydrocarbon, cycloaliphatic hydrocarbon, aromatic hydrocarbon, the respective hydrocarbon optionally being modified and/or hydrogenated, terpenes, the terpenes optionally being modified or hydrogenated, rosins, the rosins optionally being modified or hydrogenated, or mixtures thereof; (c) 5-25 parts per weight of a plasticizer component, wherein the plasticizer component comprises paraffinic oils, naphthenic oils, polybuten, polybutadien, dibasic esters, polyols or mixtures thereof; and d) 0.02-1.2 parts per weight of a stabilizer component, wherein the stabilizer component is a light stabilizer, preferably as a sterically hindered phenolic antioxidant and/or a sterically hindered amine, most preferably is pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate).

Hot melt adhesives comprising (i) styrene butadiene copolymer, (ii) olefin block copolymer (OBC), and (iii) water white hydrogenated hydrocarbon resin are described. The adhesives exhibit high optical clarity and are relatively clear over a wide range of temperatures. The adhesives also exhibit good adhesion at cold temperatures. Also described are laminates of the adhesive with polymeric films, such as adhesive labels that can be used in labeling containers. In addition, various goods such as containers labeled using the adhesives are described.

Hot melt adhesives comprising (i) styrene butadiene copolymer, (ii) olefin block copolymer (OBC), and (iii) water white hydrogenated hydrocarbon resin are described. The adhesives exhibit high optical clarity and are relatively clear over a wide range of temperatures. The adhesives also exhibit good adhesion at cold temperatures. Also described are laminates of the adhesive with polymeric films, such as adhesive labels that can be used in labeling containers. In addition, various goods such as containers labeled using the adhesives are described.

A styrenic block copolymer is disclosed, having a formula, A-B-A, A-B-B-A, (A-B-A).sub.nX, (A-B).sub.nX or mixtures thereof, wherein n is from 2 to 30, and X is residue of a coupling agent. Each A block is independently a polystyrene having 10-63 wt. % 1,1-diphenylethylene, a GPC peak molecular weight from about 5-40 kg/mol, and forms 10-40 wt. % of the copolymer. Each B block is independently a poly(1,3-diene-co-styrene) comprising: (i) >90 wt. % of polymerized isoprene units relative to the weight of the polymerized 1,3-diene, where S is <40, and (S+V) is 18-75; (ii) >90 wt. % of polymerized butadiene units relative to the weight of the polymerized 1,3-diene, where S is <40, and (1.2*S+V) is 60-120; or combinations thereof “S” represents the polystyrene content, and “V” represents the 1,3-diene content having pendant 1,2- and/or 3,4-vinyl groups in the B block.

A method of making a cover includes the steps of providing a heat shrinkable film constructed at least in part from a first styrenic block copolymer, providing a composite layer, providing an adhesive layer between the film and the composite layer, the adhesive layer including a second styrenic block copolymer selected from the same family as the first styrenic block copolymer, and laminating the film to the composite layer.

Provided is a tire inner liner with which it is possible to suppress resistance to flex fatigue during tire travel and peeling failures at high temperatures, and also reduce rolling resistance at low temperatures. A tire inner liner comprising a material that contains a thermoplastic elastomer composition, which is constituted from a thermoplastic resin or thermoplastic-resin component and an elastomer component, said tire inner liner characterized in that, in a temperature dependent curve of tan δ of the material, the maximum value of tan δ occurs between 20° C. and 70° C. inclusive.

The disclosure relates to an adhesive composition comprising a partially hydrogenated styrenic block copolymer (p-HSBC) and an amorphous polyolefin (APO) having a density of less than 1 g/cm.sup.3 and a softening point of 10-120° C. The composition has desirable elastomeric properties as well as beneficial processability characteristics. The unique combination of processability and performance attributes results in the adhesive compositions useful in a variety of applications such as disposable nonwoven hygienic articles, paper converting, flexible packaging, woodworking, carton, case sealing, and other assembly applications.