A process of forming a macromolecular block copolymer includes forming a first high molecular weight polymer using a first extruder of an extruder system that includes multiple extruders. The first extruded high molecular weight polymer has a first length terminating at a joiner of the extruder system and has a first set of material properties along the first length. The process also includes forming a second high molecular weight polymer using a second extruder of the extruder system. The second extruded high molecular weight polymer has a second length terminating at the joiner of the extruder system and has a second set of material properties along the second length. The process further includes bonding the first extruded high molecular weight polymer to the second extruded high molecular weight polymer to form a macromolecular block copolymer having a first segment of the first length and a second segment of the second length.

The invention discloses a modified acrylate adhesive resin and a production process of the same, a photosensitive resin composition, a display substrate, and a liquid crystal panel. This resin can improve the compression displacement and elastic recovery rate of the column-like spacers between two substrates of the liquid crystal display. The modified acrylate adhesive resin disclosed by the invention is an acrylate adhesive resin modified by a terminal hydroxyl-containing polybutadiene polymer, and has the following general structural formula: ##STR00001##
in which formula Z is: ##STR00002##
wherein y.sub.1+y.sub.2+y.sub.3=1; and n is an integer of 3-30; in which formula R.sub.1 is a hydrogen atom or an alkyl group; R.sub.2 is an alkyl group or an aralkyl group; R.sub.3 is an aromatic carbon ring; x.sub.1 is an integer of 1-300; x.sub.2 is an integer of 1-300; x.sub.3 is an integer of 1-300; and x.sub.4 is an integer of 2-30. The resin of the invention can be used for producing spacers.

Disclosed herein is a functionalized block copolymer comprising (a) at least one end block D comprising on average at least one amino- or phosphino-functionalized polymer unit of formula (I)

##STR00001## and
one or more additional blocks selected from the group consisting of (b) one or more A blocks substantially free of amino- or phosphino-functional groups and having a number average molecular weight of from about 1,000 to about 60,000, and has a high service temperature, and (c) one or more B blocks, wherein each block B is essentially non-functionalized, has a number average molecular weight of from about 1,000 to about 1,000,000, and has a glass transition temperature of at most about 20 C., and (d) mixtures of one or more A blocks and one or more B blocks; wherein Z is nitrogen or phosphorus; R.sup.1 is hydrogen or alkyl; R.sup.2 is hydrogen or is tertiary alkyl; R each independently, is alkyl or phenyl optionally substituted by a moiety -(A.sup.1-NR.sup.a).sub.xR.sup.b or -(A.sup.1-OR.sup.a).sub.xR.sup.b; or two R groups, together with the Z to which they are bonded, form an optionally substituted ring; x is 1, 2 or 3; A.sup.1 is straight chain alkylene optionally substituted by one or more methyl and/or ethyl groups; and R.sup.a and R.sup.b, each independently, is hydrogen or alkyl; or a corresponding onium salt.

Improved methods for preparing sulfonated block polymers with acyl sulfates in non-halogenated aliphatic solvents are provided. The methods include the sulfonation of a precursor block polymer with an acyl sulfate in a reaction mixture further comprising at least one non-halogenated aliphatic solvent to form a sulfonated block polymer, wherein the initial concentration of the precursor block polymer is in the range of from about 0.1 wt % to a concentration that is below the limiting concentration of the precursor block polymer based on the total weight of the reaction mixture. A sulfonation degree of greater than about 1.0 milliequivalent sulfonic acid per gram sulfonated block polymer can be achieved substantially free of polymer precipitation and free of disabling gelation.

Hydrogenated polymers with a radial structure having a core made up of calixarenes of the general formula (I), to the core of which is linked a number P of hydrogenated linear polymer segments selected from: hydrogenated homopolymers or copolymers of conjugated dienes; or hydrogenated copolymers of said conjugated dienes and monoalkenyl arenes, and mixtures thereof said formula (I) in which: R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from hydrogen; a group containing carbon and hydrogen; a group also containing heteroatoms in addition to carbon and hydrogen; a group also containing silicon in addition to carbon, hydrogen and heteroatoms; one of the two substituents R.sub.5 and R.sub.6 is hydrogen, while the other may be hydrogen or alkyl, with a number of carbon atoms between 1 and 6, preferably methyl and ethyl; n is an integer in the range between 4 and 16.

##STR00001##

A multilayer film including an odor barrier layer having sound dampening properties is provided. The odor barrier layer is formed from a polyamide modified with a functionalized vinyl-bond rich triblock copolymer.

The invention relates to a copolymer whose overall structure as such and/or an optionally present segment A having at least 10 bivalent structural units in the overall structure contains surface-active bivalent structural units present in the form of long hydrocarbon chains among other forms. The copolymer is effective as a universal surface-active additive, especially also in conjunction with nonpolar media.

A joint member having a thermoplastic elastomer composition including components (A), (B), and (C). Component (A): a hydrogenated product of a block copolymer including at least two polymer blocks composed primarily of a vinyl aromatic compound and at least one polymer block including butadiene, wherein, in the hydrogenated product of the block copolymer, a proportion of a hydrogenated product (A1) of a block copolymer having a weight-average molecular weight of 300,000 or more is 30% to 100% by mass, Component (B): a hydrocarbon rubber softener, Component (C): a polypropylene resin, Component (D): a crosslinking agent.