Polyesters from heterocyclic components
First Claim
Patent Images
1. PROCESS FOR THE PRODUCTION OF POLYESTERS, WHICH COMPRISES HEATING TOGETHER UNTIL A POLYMER IS PRODUCED REAGENTS ONE OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF DIOLS WHOSE HYDROXY GROUPS ARE THEIR SOLE REACTIVE GROUPS AND THEIR ESTER-FORMING DERIVATIVES AND WHICH IS PRESENT IN PROPORTION OF MORE THAN ONE MOLE TO EACH MOLE OF THE OTHER REAGENT WHICH IS SELECTED FROM THE GROUP CONSISTING OF DICARBOXYLIC ACIDS WHOSE CARBOXYLIC GROUPS ARE THEIR SOLE REACTIVE GROUPS AND THEIR ESTER-FORMING DERIVATIVES, THE DICARBOXYLIC ACID HAVING BOTH IS CARBOXYLIC GROUPS DIRECTLY ATTACHED TO A HETEROCYCLIC RING WITH CONJUGATED UNSATURATION AND HAVING ITS DIMETHYL ESTER MELTING AT ABOVE 100* C.
0 Assignments
0 Petitions
Accused Products
52 Citations
1 Claim
-
1. PROCESS FOR THE PRODUCTION OF POLYESTERS, WHICH COMPRISES HEATING TOGETHER UNTIL A POLYMER IS PRODUCED REAGENTS ONE OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF DIOLS WHOSE HYDROXY GROUPS ARE THEIR SOLE REACTIVE GROUPS AND THEIR ESTER-FORMING DERIVATIVES AND WHICH IS PRESENT IN PROPORTION OF MORE THAN ONE MOLE TO EACH MOLE OF THE OTHER REAGENT WHICH IS SELECTED FROM THE GROUP CONSISTING OF DICARBOXYLIC ACIDS WHOSE CARBOXYLIC GROUPS ARE THEIR SOLE REACTIVE GROUPS AND THEIR ESTER-FORMING DERIVATIVES, THE DICARBOXYLIC ACID HAVING BOTH IS CARBOXYLIC GROUPS DIRECTLY ATTACHED TO A HETEROCYCLIC RING WITH CONJUGATED UNSATURATION AND HAVING ITS DIMETHYL ESTER MELTING AT ABOVE 100* C.
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeJames Lincoln, Napier Drewitt James Gordon
-
Original AssigneeJames Lincoln, Napier Drewitt James Gordon
-
InventorsNAPIER DREWITT JAMES GORDON, JAMES LINCOLN
-
Application NumberUS02/782,677Time in Patent Office1,288 DaysField of SearchUS Class Current528/293CPC Class CodesC08G 63/42 Cyclic ethers C08G59/00 tak...C08G 63/672 Dicarboxylic acids and dihy...C08G 63/688 containing sulfurC08G 63/82 characterised by the cataly...
