A PROCESS FOR THE PREPARATION OF AN IMPROVED BASED SEALANT.
Application 223/DEL/2000 published 2006-12-08, filed 2000-03-10
This invention relates to a process for preparation of polyurethane based sealant composition. According to the process synthesis of pre-polymer by treating hydroxylterminated polybutadiene (HTPB) with toluene dt-isocyanate. Synthesis of polyester polyol by reaction of trimethylol with propylene in the presence of a catalyst. Hardener is prepared by mixing amines and polyol and charging the mixture with a filler. Sealant composition and its curing is prepared.
Applicant
1)CHIEF CONTROLLER
:MINISTRY OF DEFENCE GOVENMENT OF INDIA B-341, SENA BHAWAN DHQ P.O NEW DELHI-110011
Inventor
1)MANORANJAN PATRI 2)UTTAM GOPAL SURYAVANSHI 3)PRAMIL CHANDRA DEB
International Info
Classification: C08L 75/04