Title of Invention | A FLAME RETARDANT COMPOSITION FOR CABLE APPLICATIONS |
---|---|
Abstract | A flame retardant composition for cable applications, comprising an EPDM resin and flame retardant additives, accelerator, accelerator activators, plasticiser, filler, antioxidant, acid acceptor, external lubricant and vulcanizing or cross linking agent such as herein described, the flame retardant additives being antimony trioxide, trihydrated, alumina and sulphate glass composition in 5 to 50, 50 to 100 and 5 to 30 parts per hundred of the resin respectively, said sulphate glass composition having a size of 200 to 325 mesh. |
Full Text | ABSTRACT A flame reactant composition for cable applications ,comprising a resin and flame reactant additives, accelerator, accelerator ,plasticiser,filet,an Agent. 1. A flame retardant composition for cable applications, comprising a resin and flame retardant additives; accelerator, accelerator activators, plasticiser, filler, antioxidant, acid acceptor, external lubricant and vulcanizing or cross linking agent. 2. The flame-retardant composition as claimed in claim 1, wherein said resin Is EPDM resin. 3. The flame-retardant composition as claimed in claim 1, wherein said additives are selected from compounds such as antimony trioxide, trihydrated alumina, sulphate glass composition in 5 to 50, 50 to 100 and 5 to 30 parts per hundred of the resin respectively. 4. The flame-retardant composition as claimed in claim 3, wherein said sulphate glass composition having a mesh size of 200 to 325, comprises sulphate compounds of metals of as potassium, sodium, zinc and copper. 5. The flame-retardant composition as claimed in claim 1, wherein the accelerator is selected from compounds such as tetramethylthiuram disulphide (TMTd) and mercaptobenzothiazole disulphide (MBTs) in 0.1 to 0.5 and 0.5 to 2.0 parts per hundred of the resin respectively. 6. The flame-retardant qomppsltipn as cjaimed in claim 1,wherein said accelerator activators are for example compounds like zinc oxide and stearic acid, In .5 to 10 and 1 to $ parts per hundred of the resin respectively. 7. The flame-retardant composition as claimed in claim 1, wherein said filler is for example clay in 40 to 80 parts per hundred of the resin. 8. The flame-retardant composition as claimed in claim 1, wherein the plasticiser is for example dioctyl phthalate in 2 to 10 parts per hundred of the resin* 9. The flame-retardant composition as claimed in claim 1, wherein the antioxidant is for example bisphenol-A in 1 to 5 parts per hundred of the resin. 10. The flame-retardant composition as claimed in claim 1, wherein the acid acceptor is for example red lead in 2 to 5 parts per hundred of the resin. 11. The flame-retardant composition as claimed in claim 1, wherein said external lubricant is for example paraffln wax in 1 to 5 parts per hundred of the resin, 12. The flame-retardant composition as claimed in claim 1, wherein the vulcanizing or cross-linking agent is sulphur in 1 to 2 parts per hundred of the resin. 13. A process for the preparation of a flame retardant composition for cable applications, comprising adding an accelerator, accelerator activator, plasticiser, filler, antioxidant, acid acceptor, external lubricant and flame retardant additive to a resin, followed by mixing for 4 to 5 minutes at a temperature in the range of 110 to 120°C to obtain a honrK}geneous mass, followed by treating the homogeneous mass with a vulcanizing or cross linking agent to obtain the flame retardant composition. 14. The flame-retardant composition as claimed in claim 13, wherein the composition is converted to sheet specimens by compression moulding at 150 to 160 15. A process for the preparation of sulphate glass composition, comprising mixing the sulphates of potassium, sodium, zinc and copper to obtain a homogeneous mass, followed by melting at 400^C to form a molten mass which gets converted. 16. A process as claimed in claim 15, wherein the sulphates of potassium, sodium, zinc and copper are mixed in quantities based on their molar weights. 17. A process as claimed in claim 15, wherein the glass is ground to a find mass and sieved. 18. A flame-retardant composition for cable applications substantially as herein described. 19. A sulphate glass composition substantially as herein described. (1 |
---|
301-che-2004 claims granted.pdf
301-che-2004-correspondnece-others.pdf
301-che-2004-correspondnece-po.pdf
301-che-2004-description(complete).pdf
301-che-2004-description(provisional).pdf
301-che-2004-other documents.pdf
Patent Number | 234791 | ||||||||
---|---|---|---|---|---|---|---|---|---|
Indian Patent Application Number | 301/CHE/2004 | ||||||||
PG Journal Number | 29/2009 | ||||||||
Publication Date | 17-Jul-2009 | ||||||||
Grant Date | 15-Jun-2009 | ||||||||
Date of Filing | 31-Mar-2004 | ||||||||
Name of Patentee | CENTRAL POWER RESEARCH INSTITUTE | ||||||||
Applicant Address | A GOVERNMENT OF INDIA SOCIETY, PROF. SIR C.V. RAMAN ROAD, SADASHIVA NAGAR SUR POST OFFICE ,P.B.NO.8066, BANGALORE-560080 | ||||||||
Inventors:
|
|||||||||
PCT International Classification Number | C08K003/00 | ||||||||
PCT International Application Number | N/A | ||||||||
PCT International Filing date | |||||||||
PCT Conventions:
|