Recycling of Natural and Synthetic Rubbers
AssigneeElastomer Technologies Ltd
InventorTan Sri Dr. Balachandra Chakkinggal Sekhar
Life of this patent
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Abstract
A delinking composition in the form of a combined solid dose comprising: (i) one or more elastomer delinking accelerators selected from the group consisting of zinc salts of thiocarbamates and zinc salts of dialkyl dithiophosphates; and (ii) one or more elastomer delinking accelerators selected from the group consisting of 2-mercaptobenzothiazole or derivatives thereof, thiurams, guanidines, 4,4′-dithiomorpholine and sulpenamides; and (iii) at least one elastomer delinking activator.
Claims25
A delinking composition comprising:
- (i) one or more elastomer delinking accelerators selected from the group consisting of zinc salts of thiocarbamates and zinc salts of dialkyl dithiophosphates;
- and
- (ii) one or more elastomer delinking accelerators selected from the group consisting of 2-mercaptobenzothiazole or derivatives thereof, thiurams, guanidines, 4,4′-dithiomorpholine and sulphenamides;
- and
- (iii) at least one elastomer delinking activator,
- wherein the delinking composition is in the form of a combined solid dose devoid of dispersing agents and binders.
(canceled)
A delinking composition consisting of:
- (i) one or more elastomer delinking accelerators selected from the group consisting of zinc salts of thiocarbamates and zinc salts of dialkyl dithiophosphates;
- (ii) one or more elastomer delinking accelerators selected from the group consisting of 2-mercaptobenzothiazole or derivatives thereof, thiurams, guanidines, 4,4′-dithiomorpholine and sulphenamides;
- and
- (iii) at least one elastomer delinking activator,
- wherein the delinking composition is in the form of a combined solid dose.
17-30. (canceled)
A delinking composition comprising:
- (i) one or more elastomer delinking accelerators selected from the group consisting of zinc salts of thiocarbamates and zinc salts of dialkyl dithiophosphates;
- (ii) one or more elastomer delinking accelerators selected from the group consisting of 2-mercaptobenzothiazole or derivatives thereof, thiurams, guanidines, 4,4′-dithiomorpholine and sulphenamides;
- (iii) at least one elastomer delinking activator;
- and
- (iv) additives or excipients to aid in the pelletizing process, wherein the total amount of the additives or excipients is less than 5% by weight of the total delinking composition,
- wherein the delinking composition is in the form of a combined solid dose.
Dependencies are inferred from the claim text.