摘要:
Blends of low styrene content polystyrene-polyisoprene-polystyrene block copolymer and high styrene content polystyrene-polyisoprene-polystyrene block copolymer can be used with tackifier resins, plasticizer oil and antioxidants to formulate pressure sensitive adhesives of improved cohesive strength vis-a-vis adhesives formed from the low styrene content polystyrene-polyisoprene-polystyrene block copolymer while maintaining good balance between tack, bonding characteristics and heat resistance.
摘要:
Disclosed herein are carpets and carpet tiles comprising a primary backing material having a face and a back side; a plurality of fibers attached to the primary backing material and extending from the face of the primary backing material and exposed at the back side of the primary backing material; and an adhesive composition. The adhesive composition generally comprises at least one homogenously branched ethylene polymer. Also disclosed are methods for manufacturing the disclosed carpets and carpet tiles.
摘要:
The instant invention is an adhesion promoter system, and method of producing the same. The adhesion promoter system comprises an aqueous dispersion comprising the melt kneading product of: (a) at least 60 percent by weight of a base polymer, based on the total weight of the solid content, wherein said base polymer comprises a propylene/ethylene copolymer composition, wherein said propylene/ethylene copolymer has a crystallinity in the range of from 1 percent by weight to 30 percent by weight, a heat of fusion in the range of from 2 Joules/gram to 50 Joules/gram), and a DSC melting point in the range of 25° C. to 110° C.; (b) from 0.5 to less than 30 percent by weight of a functionalized polymer composition, based on the total weight of the solid content, wherein said functionalized polymer composition comprises homopolymers of propylene or copolymers of propylene with hexene, octene and/or other like alpha-olefins, the homopolymers or copolymers having a single unsaturation, a terminal succinic anhydride moiety, and additional succinic anhydride substitutions on the polypropylene backbone, where the succinic anhydride substitution ranges from about 5 to about 45 weight percent of functionalized polymer composition; (c) from 0.1 to less than 20 percent by weight of a stabilizing agent, based on the total weight of the solid content; and (d) in the presence of water and optionally one or more neutralizing agents, for example, at a temperature in the range of 25° C. to 200° C.
摘要:
Disclosed herein are carpets and carpet tiles comprising a primary backing material having a face and a back side; a plurality of fibers attached to the primary backing material and extending from the face of the primary backing material and exposed at the back side of the primary backing material; and an adhesive composition. The adhesive composition generally comprises at least one homogenously branched ethylene polymer. Also disclosed are methods for manufacturing the disclosed carpets and carpet tiles.
摘要:
This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines. The compositions of the present invention preferably comprise an elastomeric polyolefin resin and a high pressure low density type resin.
摘要:
The instant invention provides a coated container device, and method of making the same. The coated container device according to the instant invention comprises: (1) a metal substrate; and (2) one or more crosslinked coating layers associated with the metal substrate, wherein the one or more crosslinked coating layers are derived from the application of one or more aqueous dispersions to at least one surface of the metal substrate, and wherein the one or more aqueous dispersion comprise: (a) one or more a base polymer; (b) one or more a stabilizing agent; (c) optionally one or more neutralizing agents, (d) one or more crosslinking agents; and (e) water.
摘要:
A fiber is obtainable from or comprises a blend of a propylene based polymer and an ethylene/α-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481−1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven, knitted or non-woven fabrics can be made from such fibers.
摘要:
An adhesive composition comprising a copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and C4-20α-olefins, the copolymer having (i) a content of units derived from propylene of greater than about 50 mole percent, (ii) a Brookfield viscosity at 190 C from about 50 to about 100,000 cP, (iii) an MWD from about 1.5 to about 15, and (iv) containing less than about 50 ppm residual catalyst metal.
摘要:
Blended polyolefin dispersions, including: (A) a liquid; (B) an olefin-based polymer dispersed in the liquid, the dispersed olefin-based polymer having an average particle size ranging from 0.1 to 5 microns; and (C) an alpha-beta unsaturated carboxylic acid-based polymer dispersed in the liquid, the dispersed alpha-beta unsaturated carboxylic acid-based polymer having an average particle size ranging from 0.02 microns to 1 micron. Coatings, froths, foams, toners, and other various uses for the blended dispersions are also disclosed.
摘要:
The present invention relates to a blend of polymeric materials comprising; (A) of from about 1 to about 80 percent by weight (based on the combined weights of Components A and B) of at least one substantially random interpolymer; wherein said interpolymer; (1) contains of from about 0.5 to about 50 mole percent of polymer units derived from; a) at least one vinyl or vinylidene aromatic monomer, or b) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or c) a combination of at least one vinyl or vinylidene aromatic monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer; (2) contains of from about 50 to about 99.5 mole percent of polymer units derived from at least one aliphatic &agr;-olefin having from 2 to 20 carbon atoms; (3) has a melt index (I2) of from about 0.01 to about 100 g/10 min; and (4) has a molecular weight distribution (Mw/Mn) of from about 1.5 to about 20; (B) of from about 20 to about 99 weight percent based on the combined weights of Components A, and B of one or more engineering thermoplastics.