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Class Information
Number: 530/215
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
Description: Processes wherein the carboxyl group of rosin or of a derivative thereof is esterified, or products of such processes.


Sub-classes under this class:

Class Number Class Name Patents
530/216 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.) 25
530/217 Oxygen containing ring or halogen containing material used in the esterification, or product thereof (e.g., using alkylene oxides, polysaccharides, alkyl halides, etc.) 27
530/218 Polyhydroxy material used in the esterification, or product thereof (e.g., forming ester gum, etc.) 53


Patents under this class:

Patent Number Title Of Patent Date Issued
7411035 Acrylated natural resins Aug. 12, 2008
7411036 Acrylated natural resins Aug. 12, 2008
7001981 Acrylated natural resins Feb. 21, 2006
6939944 Inhibition of rosin crystallization Sep. 6, 2005
6590070 Thermosetting adhesive composition and adhered structure Jul. 8, 2003
6583263 Acrylated maleic-modified rosin esters and methods of preparing same Jun. 24, 2003
6562888 Light-colored rosin esters and adhesive compositions May. 13, 2003
6525162 Polyols, polyurethane systems and polyurethane reactive hot melt adhesives produced therefrom Feb. 25, 2003
6172174 Phenolic rosin resin compositions Jan. 9, 2001
6171385 Adhesive mixture suitable for mounting and demounting a semiconductor wafer Jan. 9, 2001
6153693 Elastomeric-modified phenolic rosin resins Nov. 28, 2000
6022947 Light-colored, low molecular weight phenolic-modified rosin esters Feb. 8, 2000
5969092 Preparation of a tall oil rosin ester with a low odor level Oct. 19, 1999
5969071 Method for preparing phenolic rosin resins Oct. 19, 1999
5922420 Chemically modified wood Jul. 13, 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
5559206 Partially esterified rosin based resins Sep. 24, 1996
5552519 Rosin ester derivative as surfactants Sep. 3, 1996
5491215 Rosin carboxypyrrolidinone adducts Feb. 13, 1996
5387669 Process for preparing rosin ester and colorless rosin Feb. 7, 1995
5266682 Nitrogen-containing surface-active agents Nov. 30, 1993
5246998 Dicyclopentadiene alcohol rosin acid derivatives Sep. 21, 1993
5177133 Hot melt adhesive composition Jan. 5, 1993
5162496 Method for the preparation of light-colored rosin esters Nov. 10, 1992
5116945 Resinous substance May. 26, 1992
5100989 Resin acid esters based on novolak oxyalkylates, their preparation and their use Mar. 31, 1992
5073623 Condensation products based on rosin Dec. 17, 1991
5049607 Rubber composition comprising alkyl (C.sub.6 -C.sub.22) amides of rosin acid Sep. 17, 1991
5049652 Use of a mixed catalyst system to improve the viscosity stability of rosin resins Sep. 17, 1991
5039726 Alkyl (C12-C22) esters of rosin acid Aug. 13, 1991
5037956 Process for the preparation of the hydroxydiphenylamine ester of rosin acid Aug. 6, 1991
4963188 Novel water-based ink composition Oct. 16, 1990
4962186 Method of improving the color of tall oil rosin esters by recrystallizing and distilling rosin followed by esterifying Oct. 9, 1990
4946879 Reaction product of a rosin acid and an antidegradant Aug. 7, 1990
4659514 Esterification of rosin acid with calcium hydroxybenzyl phosphonate catalyst Apr. 21, 1987
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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