Apparatus for recovering styrene monomer and method of recovering styrene monomer using auxiliary solvent

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8449725
APP PUB NO 20110067992A1
SERIAL NO

12694697

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Described are an apparatus and a method for recovering styrene monomer using an auxiliary solvent, more particularly an apparatus and a method for recovering styrene monomer through pyrolysis of waste polystyrene capable of improving recovery ratio of styrene monomer using an auxiliary solvent such as steam, preventing repolymerization of pyrolyzed styrene monomer and effectively preventing production of unwanted high molecular weight materials.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY141 GAJEONG-RO YUSEONG-GU DAEJEON 34114

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Myoung Jae Daejeon, KR 2 32
Kim, Seong Bo Daejeon, KR 80 116
Lee, Sang Bong Daejeon, KR 40 229
Yoon, Byung Tae Daejeon, KR 5 35

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 28, 2024
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00