Styrene → HCID 86593707, compound

HRID 1591507Notes

Reaction equation

HRID 1591507 reaction equation
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH2:9]=[CH:10][C:11](=C)[CH3:12].C=CC=C>C1CCCCC1>[CH2:1]=[CH:2][C:3](=[CH2:4])[CH3:8].[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH2:9]=[CH:10][CH:11]=[CH2:12].[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1

Participants

4

Reactant 2

HCID 7501Styrene2×HCID 168288Isoprene butadiene

Product 1

HCID 86593707HCID 86593707, compound

Reagents, catalysts & solvents 1

HCID 8078CyclohexaneSolvent

Procedure

Nishikawa, et al., U.S. Pat. No. 5,436,295, Jul. 25, 1995 describes the reparation of block copolymer using a pressure-proof vessel equipped with a stirrer was charged with 3,000 g of cyclohexane, 50 g of sufficiently dewatered styrene and 0.01 mole of lithium sec-butyl followed by polymerization at 60. degree. C. for 60 minutes, addition of 200 g of a 50/50 by weight mixture of isoprene/butadiene followed by polymerization at 60. degree. C. for 60 minutes and addition of 50 g of styrene followed by polymerization for 60 minutes, to obtain a styrene-isoprene/1,3-butadiene-styrene block copolymer. Hydrogenation was conducted in the same manner as above to obtain a block copolymer having a hydrogenation ratio of 98%. This was named SEEPS-1. The block copolymer's olefinic elastomer block having a glass transition point of not higher than −20. degree. C. and a heat of fusion of crystal of not more than 8 cal/g.

Workup

  1. customequipped with a stirrer
  2. customfollowed by polymerization at 60
  3. customfollowed by polymerization at 60
  4. waitfor 60 minutes
  5. customfollowed by polymerization for 60 minutes

Sources & evidence

ORD record
ord-7907a72c36044a6781ccae5f8e881552
Source dataset
uspto-grants-2007_11
Patent number
US07290367B2

Reaction notes

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