公开(公告)号：US4203880B1

公开(公告)日：1994-04-26

申请号：US95970778

申请日：1978-11-13

Applicant: M & T CHEMICALS INC

Inventor： STOLOFF ALFRED ,  WILLIAMS ANTHONY L

IPC: C08L27/00 ,  C08K5/01 ,  C08K5/09 ,  C08K5/58 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L27/06 ,  C08L33/00 ,  C08L33/02 ,  C08L57/08 ,  C08L101/00 ,  C08K5/57 ,  C08K3/26 ,  C08K5/59 ,  C08L91/06

CPC classification number: C08K5/09 ,  C08K5/58 ,  C08K5/59 ,  C08L23/30 ,  C08L27/06 ,  C08L57/08 ,  C08L91/06

Abstract: A lubricant composition (A) to improve the melt strength and processability, e.g. extrudability, of a polymer formed from at least one ethylenically unsaturated compound, the composition (A) comprising (1) a heat stabilizer known to be capable of heat stabilizing the said polymer; (2) an external lubricant for the said polymer, and (3) an oxidized polymer, wherein at least 50% of the repeating units of the oxidized polymer are derived from ethylene and any remaining units thereof are derived from at least one alpha -olefin containing from 3 to 10 carbon atoms, and the oxidized polymer exhibits an acid number greater than 5 and a melt viscosity of from 1,000 to about 60,000 centipoises at a temperature of 140 DEG C. … There is also provided a polymer composition (B) comprising a halogen-containing polymer as a major component together with the said lubricant composition (A).