The invention is a film having a discontinuous phase of open and closed cells and a continuous organic phase comprising: (a) one or more block copolymer(s) corresponding to the Formula I: wherein each A is a polymer block derived comprising one or more monovinylidene aromatic monomers, each B is a polymer block derived from one or more conjugated dienes, X is the remnant of a multifunctional coupling agent, m is 0 or 1, and n is an integer from 1 to 5, each A polymer block has a weight average molecular weight from 4,000 to 20,000 Daltons, each B polymer block has a weight average molecular weight from 20,000 to 100,000 Daltons, wherein the block copolymers are optionally hydrogenated; and (b) optionally, an extender which is compatible with the B polymer block, and wherein the organic phase contains from about 5 to about 30 percent by weight of units derived from monovinylidene aromatic monomers and the effective phase volume of the A polymer block in the organic phase is from about 5 to about 20 percent. Also claimed is a process for the preparation of such articles.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a Continuation-in-Part of application Ser. No. 469,184, filed Jun. 5, 1995 U.S. Pat. No. 5,578,674 which is a Continuation-in-Part of Ser. No. 170,625, filed Dec. 20, 1993, now abandoned, which is a Continuation-in-Part application of application Ser. No. 002,433, filed Jan. 8, 1993, now abandoned (all incorporated herein by reference). This application is a Continuation-in-Part of application Ser. No. 339,862, filed Nov. 15, 1994 U.S. Pat. No. 5,567,760 (incorporated herein by reference).
The present invention is directed to a composition comprising a hydrogenated block copolymer of a vinyl aromatic and conjugated diene polymer, having a lamellar morphology and high aromatic hydrogenation level.
Flexible hydrogenated block copolymers can be successfully used in a variety of applications including films, profiles, sheets, coatings, injection molded articles, blow or rotational molded articles and pultruded articles.
The present invention relates to a fiber produced form a composition comprising at least one hydrogenated block copolymer and, optionally, at least one other polymer selected from the group consisting of a reactive tailored liquid polyurethane, an elastomeric or sulfonated ethylene/vinyl aromatic interpolymer, an elastomeric ethylene/C.sub.3 -C.sub.20 .alpha.-olefin interpolymer, an C.sub.3 -C.sub.20 .alpha.-olefin/conjugated diene interpolymer, an elastic polypropylene polymer, an enhanced polypropylene polymer, an elastomeric thermoplastic polyurethane, an elastic copolyester, a partially hydrogenated block copolymer, an elastic polyamide, a hydroxyl functionalized polyether (or polyetheramine), a styrene/conjugated diene interpolymer, and an elastomeric metallocene-catalyzed synthetic polymer or a blend or formulated system thereof.
A polymer blend suitable for use in automotive floor covering applications includes 100 parts by weight of a radial block copolymer having the general formula (AB).sub.n BA, wherein n is greater than 1, each block A is a monoalkenyl arene polymer block and each block B is an elastomeric conjugated diene polymer block; from about 5 to about 200 parts by weight of a mineral oil; and from about 5 to about 300 parts by weight of a 1-olefin polymer. The resulting polymer blend may be formed into sheet materials which are recyclable, and which may exhibit low gloss and excellent tactility similar to vulcanized rubber. Further, the polymer blends of this invention may exhibit excellent grain retention, abrasion resistance, heat stability, and ultraviolet light stability.
Compositions comprising hydrogenated block copolymers can be successfully used in a variety of applications including films, profiles, sheets, pultruded articles, fibers, coated articles, injection molded articles and blow or rotational molded articles.
