Method for separating organozinc catalyst from polyalkylene carbonate polymerization solution

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12076714
APP PUB NO 20220143589A1
SERIAL NO

17437907

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present disclosure relates to a method for separating an organozinc catalyst from a polyalkylene carbonate polymerization solution, and the method of the present disclosure includes: stirring and aging a polymerization solution including a polyalkylene carbonate resin, an organozinc catalyst, an alkylene oxide and a polymerization solvent; and filtering the polymerization solution after completing the aging.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
LG CHEM LTDSEOUL SOUTH KEREAN SEOUL

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Sung Kyoung Daejeon, KR 15 38
Kim, Won Seok Daejeon, KR 37 91
Min, Kyung Min Daejeon, KR 5 0
Park, Seung Young Daejeon, KR 89 344
Shin, Sang Cheol Daejeon, KR 82 197
Woo, Won Hee Daejeon, KR 6 0

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
3.5 Year Payment $1600.00 $800.00 $400.00 Mar 3, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 3, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 3, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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