Process for preparing 4-hydroxybutyl acrylate

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9670129
SERIAL NO

14516979

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A process for preparing 4-hydroxybutyl acrylate by transesterifying an alkyl acrylate with 1,4-butanediol in the presence of a dialkyltin oxide such that each of the alkyl groups has 4 to 8 carbon atoms, characterized in that the amount of the dialkyltin oxide is adjusted to 0.00001 to 0.01 moles per one mole of the alkyl acrylate.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
OSAKA ORGANIC CHEMICAL INDUSTRY LTD1-8-15 AZUCHI-MACHI CHUO-KU OSAKA-SHI OSAKA 5410052 ?5410052

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Keisuke Kashiwara-shi, JP 81 302
Okamura, Kohei Kashiwara-shi, JP 1 0
Tanaka, Yukio Kashiwara-shi, JP 210 3184

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 6, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 6, 2028
Fee Large entity fee small entity fee micro entity fee
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