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Class Information
Number: 530/216
Name: Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof > Natural resins or derivatives (e.g., wood or pine tar; cativo resin derivatives, etc.) > Rosin or derivative used as starting material in process, or product thereof (e.g., using gum rosin, wood rosin, solid tall oil rosin, etc.) > Esterification of rosin or derivative via carboxyl group, or product thereof > Chemical treatment or color modification of esterified rosin or derivative, or product thereof (e.g., partial saponification of rosin triglycerides; removal of color bodies from rosin esters, etc.)
Description: Processes wherein esterified rosin or a derivative thereof undergoes further chemical treatment or color modification, or products of such processes.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7411036 |
Acrylated natural resins |
Aug. 12, 2008 |
| 6583263 |
Acrylated maleic-modified rosin esters and methods of preparing same |
Jun. 24, 2003 |
| 6172174 |
Phenolic rosin resin compositions |
Jan. 9, 2001 |
| 6022947 |
Light-colored, low molecular weight phenolic-modified rosin esters |
Feb. 8, 2000 |
| 5969071 |
Method for preparing phenolic rosin resins |
Oct. 19, 1999 |
| 5874507 |
Polyepichlorohydrin-based tri-block additive for surface modification of polymer films and articles |
Feb. 23, 1999 |
| 5830992 |
Light color, color stable rosin esters and methods for preparing same |
Nov. 3, 1998 |
| 5698668 |
Modified natural-resin acid esters, processes for their preparation, and their use as binder resins in printing inks |
Dec. 16, 1997 |
| 5606016 |
Process for preparing colorless rosins |
Feb. 25, 1997 |
| 5552519 |
Rosin ester derivative as surfactants |
Sep. 3, 1996 |
| 5387669 |
Process for preparing rosin ester and colorless rosin |
Feb. 7, 1995 |
| 5162496 |
Method for the preparation of light-colored rosin esters |
Nov. 10, 1992 |
| 5116945 |
Resinous substance |
May. 26, 1992 |
| 5021548 |
Sodium hydroxymethane sulfonate to improve the color stability of rosin resins |
Jun. 4, 1991 |
| 4906733 |
Process for preparing colorless rosin |
Mar. 6, 1990 |
| 4847010 |
Process for preparing rosin ester with esterification and hydrogenation |
Jul. 11, 1989 |
| 4758379 |
Process of preparing polyol esters of rosin with excess rosin |
Jul. 19, 1988 |
| 4725384 |
Method for rosin esterification in the presence of phosphinic acid and phenol sulfide and subsequent neutralization with a magnesium salt |
Feb. 16, 1988 |
| 4477613 |
Stabilization of tackifying resin dispersions |
Oct. 16, 1984 |
| 4405514 |
Preparation of esters of resin acids, resins, rosins, and derivatives thereof |
Sep. 20, 1983 |
| 4377510 |
Urethane-modified rosin ester and process for preparing the same |
Mar. 22, 1983 |
| 4333732 |
Dyestuff preparations containing oxalkylates of modified natural rosin acids |
Jun. 8, 1982 |
| 4312631 |
Surface-active compounds based on natural rosin acids |
Jan. 26, 1982 |
| 4297270 |
Manufacture and use of non-ionogenic interface-active agents based on modified rosins |
Oct. 27, 1981 |
| 3954690 |
Removal of sulfuric acid compounds |
May. 4, 1976 |
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