Pentablock copolymer and manufacturing method of the same

Details Pentablock copolymer and manufacturing method of the same Pentablock copolymer and manufacturing method of the same

2005-11-15

2005-11-15

Seidleck, James J. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S250000, C525S280000, C525S332900, C525S271000, C525S272000, C525S333300

Reexamination Certificate

active

06964996

ABSTRACT:
The present invention relates to a ternary copolymer represented by the following formula (1) of the penta-block structure, wherein the molecular weight is 50, 000 to 400,000, pB is more than 70% of 1,4 structure, the content of pS is in range of 5% to 50%, and pB and pI are in a weight ratio of pB/pI≧1.in-line-formulae description="In-line Formulae" end="lead"?pS-pI-pB-pI-pS  (1)in-line-formulae description="In-line Formulae" end="tail"?Wherein, pS is vinyl aromatic polymer, pB is polybutadiene and pI is polyisoprene.The block copolymer in the present invention with the structure, in which polyisoprene block is inserted between vinyl aromatic polymer block and polybutadiene block, has high mechanical properties such as tensile strength. The manufacturing method of the ternary block copolymer with penta-block structure is also provided.

REFERENCES:
patent: 3692874 (1972-09-01), Farrar et al.
patent: 4120915 (1978-10-01), Fodor et al.
patent: 4631314 (1986-12-01), Tung et al.
patent: 5292819 (1994-03-01), Diehl et al.
patent: 5399627 (1995-03-01), Diehl et al.
patent: 5532319 (1996-07-01), Asahara et al.
patent: 5583182 (1996-12-01), Asahara et al.
patent: 6576686 (2003-06-01), Delme et al.
Ahmad, Husain et al.; “Application of a Chemical Group Contribution Technique for Calculating Solubility Parameters of Polymers”; Polymer Engineering and Science; Sep. 1979; pp. 858-863; vol. 19, No. 12.
Cho, Jae Cheol et al.; “Microstructure Effect in the Coupling Reactions of Polymeric Organolithium Compounds Using Chlorosilanes”; Journal of Polymer Science (JPS): Part A: Polymer Chemistry; 1998; pp. 1743-1753; vol. 36.
Cohen, Robert E. et al.; “Properties of Block Copolymers and Homopolymer Blends Comprised of 1,2-Polybutadiene and 1,4-Polybutadiene”; Macromolecules; 1982; pp. 370-375; vol. 15.
Hamley, Ian W.; “The Physics of Block Copolymers”; pp. 2-7 and 24-28; Oxford University Press; Oxford, U.K. 1998.

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