Kraton Polymers U.S. LLC

Kraton Corporation

Kraton Polymers LLC

Hendrik De Groot

Carl Lesley Willis

Dale Lee Handlin, Jr

Robert Charles Bening

Jeffrey G Southwick

Margaret Ann Burns Clawson

Kathryn J Wright

Keith Eiden

John E Flood

David Thomas Williamson

Xavier Muyldermans

Arwin W Van Der Waal

Huixian Yang

Gert Joly

Lie Djiauw

Huan Yang

Catherine Maris

Xavier D D J Muyldermans

Freddy Maria Armand Vervoort

Robert Dossett

Mark Govert Kalisvaart

Emmanuel Colchen

Xavier Daniel Dominique Jean Muyldermans

A composition comprising selectively hydrogenated block copolymers (a) and (b having peak molecular weights of 150-1,000 kg/mol, 6-60 kg/mol, respectively, is disclosed. Component (a) comprises one or more structures A-B-A, (A-B-A)nX, A-(B-A)n, and (A-B)nX. Component (b) comprises one or more structures C-D, D-C-D, and (D-C)nX. The value of 'n' is 1-30, and “X” is a residue of a coupling agent. Before hydrogenation, blocks A and C, are vinyl aromatic polymer blocks; and blocks B and D are polymer blocks comprising 60-100 mol % of one or more conjugated dienes and 0-40 mol % of a vinyl aromatic monomer. The HSBC compositions and TPE blends exhibits good elasticity, good processability, low extractables, and low compression set.

Block copolymer compositions

An oil gel compositions comprising (i) between 10 to 20 wt. % of a selectively hydrogenated styrenic block copolymer, (ii) an oil, and (iii) optional additives is described herein. In embodiments, the oil gel composition is characterized as having, a viscosity at 25&#xb0; C. and 10/s between 100 (See claim) and 200 Pa-s, a cone penetration at 25&#xb0; C. from 200 dmm to 600 dmm, a drop point from 100 to 250&#xb0; C., and oil separation at 100&#xb0; C. from 0% to 2%. In embodiments, the oil gel composition has a viscosity ratio of 25&#xb0; C./100&#xb0; C. from 4 to 20 at 10/s shear rate. The oil gel composition can be used in cables for post tensioning applications.

Block copolymers for gel compositions with improved efficiency

A filling composition is disclosed, the composition comprises (i) between 4 to 20 wt. % of a selectively hydrogenated isoprene-styrene block copolymer having a structure S-EP with at least 40 wt. % polystyrene content, a total diblock apparent molecular weight of at least 160 kg/mole, the polystyrene block S has a true molecular weight in the range of 60 to 110 kg/mole, and the polyisoprene block (EP) has a molecular weight in the range of 80-100 kg/mole, (ii) an oil, and (iii) optional additives. The filling composition is characterized as having a thixotropic ratio of 2-10, a drop point of at least 200&#xb0; C., and a cone penetration at 25&#xb0; C. of &#x3c;500 dmm.

Filling composition for cables

Selectively hydrogenated block copolymers having semi-crystalline blocks hard blocks and copolymer soft blocks having a combination of excellent physical properties and solvent resistance have been discovered. The block copolymer comprises at least one A block of hydrogenated, polymerized 1,3-butadiene and at least one B block which is a random copolymer or a controlled distribution copolymer of conjugated diene and mono vinyl aromatic monomers in which the conjugated diene monomer units are selectively hydrogenated. Polar functionalized block embodiments of the block copolymers are also disclosed. Compositions comprising the block copolymer and articles made from the block copolymer have also been discovered. A method is disclosed which provides highly isotropic, high strength melt cast films of block copolymers.

Block copolymers having semi-crystalline blocks and compositions and articles made therefrom

The present invention relates to articles prepared from novel anionic block copolymers of mono alkenyl arenes and conjugated dienes, and to blends of such block copolymers with other polymers. The block copolymers have mono alkenyl arene end blocks and controlled distribution blocks of mono alkenyl arenes and conjugated dienes. The block copolymer may be blended with at least one other polymer selected from the group consisting of olefin polymers, styrene polymers, amorphous resins and engineering thermoplastic resins.

Articles prepared from controlled distribution block copolymers

The present invention relates to novel compositions comprising (a) anionic block copolymers of mono alkenyl arenes and conjugated dienes, and (b) tailored softening modifiers have a particular polydispersity index that results in a surprising improvement in properties for the composition. Also included are processes for the manufacturing such novel compositions and various end-uses and applications for such compositions.

Hydrogenated block copolymer compositions

The present invention relates to articles prepared from novel anionic block copolymers of mono alkenyl arenes and conjugated dienes, and to blends of such block copolymers with other polymers. The block copolymers are selectively hydrogenated and have mono alkenyl arene end blocks and controlled distribution blocks of mono alkenyl arenes and conjugated dienes. The block copolymer may be blended with at least one other polymer selected from the group consisting of olefin polymers, styrene polymers, amorphous resins and engineering thermoplastic resins.

Articles prepared from hydrogenated controlled distribution block copolymers

The present invention relates to articles prepared from novel anionic block copolymers of mono alkenyl arenes and conjugated dienes, and to blends of such block copolymers with other polymers. The block copolymers are selectively hydrogenated and have mono alkenyl arene end blocks and conjugated diene mid blocks. The block copolymer may be blended with at least one other polymer selected from the group consisting of olefin polymers, styrene polymers, amorphous resins and engineering thermoplastic resins.

Articles prepared from hydrogenated block copolymers

Kink resistant medical tube is manufactured from a polymer composition comprising:

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Louvain-la Neuve, Belgium

Hendrik De Groot