Kwok K. Sun

Person

Hamden, CT, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process for preparing diaminodiphenyl-alkanes
- Patent number 4,351,957
- Issue date Sep 28, 1982
- The Upjohn Company
- Kwok K. Sun
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for separating 4,4'-diaminodiphenylmethane
- Patent number 4,201,722
- Issue date May 6, 1980
- The Upjohn Company
- Kwok K. Sun
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of bis(aminophenyl)alkanes
- Patent number 4,177,211
- Issue date Dec 4, 1979
- The Upjohn Company
- Kwok K. Sun
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of bisphenol-A
- Patent number 4,052,466
- Issue date Oct 4, 1977
- The Upjohn Company
- Kwok K. Sun
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Purification of methylenedianilines
- Patent number 4,034,039
- Issue date Jul 5, 1977
- The Upjohn Company
- Kwok K. Sun
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Purification process for MDA
- Patent number 4,029,705
- Issue date Jun 14, 1977
- The Upjohn Company
- Adnan A. R. Sayigh
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the purification of MDA
- Patent number 4,028,361
- Issue date Jun 7, 1977
- The Upjohn Company
- Adnan A. R. Sayigh
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for isolating 4,4'-diaminodiphenylmethane
- Patent number 4,008,275
- Issue date Feb 15, 1977
- The Upjohn Company
- Adnan A. R. Sayigh
- C07 - ORGANIC CHEMISTRY

Kwok K. Sun

Person

Patents Grantslast 30 patents

Process for preparing diaminodiphenyl-alkanes

Process for separating 4,4'-diaminodiphenylmethane

Process for the preparation of bis(aminophenyl)alkanes

Process for the preparation of bisphenol-A

Purification of methylenedianilines

Purification process for MDA

Process for the purification of MDA

Process for isolating 4,4'-diaminodiphenylmethane