Process for modifying polyolefines with unsaturated polyesters

Claim 2

A PROCESS FOR THE PRODUCTION OF MODIFIED POLYOLEFINES COMPRISING INTENSELY KNEADING UNDER A SHEAR STRESS OF THE ORDER OF MAGNITUDE OF 1500 KG./CM.2 A MIXTURE CONSISTING ESSENTIALLY OF (A) A HIGH MOLECULAR WEIGHT SYNTHETIC POLYOLEFINE OF A 2 TO 4 CARBON ATOM MONOLEFINE, SAID POLYOLEFINE HAVING A MELT INDEX OF ABOUT 0.1 TO 30, (B) FROM 0.3 TO 30% BY WEIGHT OF AN EHTYLENICALLY UNUNSATURATED POLYESTER PREPARED FROM POLYOLS WITH A,B-UNSATURATED POLYBASIC CARBOXYLIC ACIDS AND HAVING A MOLECULAR WEIGHT FROM 500 TO 6000 BASED ON THE TOTAL WEIGHT OF POLYOLEFINE AND POLYESTER, AND (C) 0.05 TO 10% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B) OF A FREE RADICAL FORMING CATALYST AT A TEMPERATURE FROM 60 TO 350*C.

Claim 3

A PROCESS FOR THE PRODUCTION OF A MODIFIED POLYOLEFINES COMPRISING INTENSELY KNEADING AT A TEMPERATURE FROM 60 TO 350*C. UNDER A SHEAR STRESS OF THE ORDER OF MAGNITUDE OF 1500 KG./CM.2 A MIXTURE CONSISTING ESSENTIALLY OF: (A) A HIGH MOLECULAR WEIGHT POLYOLEFIN OF A 2 TO 4 CARBON ATOM MONOLEFINE, SAID POLYOLEFINE HAVING A MELT INDEX OF ABOUT 0.1 TO 30; (B) THE COMBINATION OF (1) AN ETHYLENICALLY UNSATURATED POLYESTER PREPARED FORM POLYOLS WITH A,B-UNSATURATED POLYBASIC CARBOXYLIC ACIDS AND HAVING A MOLECULAR WEIGHT FROM 500 TO 6000, AND (2) AN ETHYLENICALLY UNSATURATED MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYLAROMATIC MONOMERS CONTAINING ONE BENZEN NUCLEUS IN THE MOLECULE, METHYL ACRYLATE, ETHYL ACRYLATE, METHYL METHACRYLATE AND ETHYL METHACRYLATE IN AN AMOUNT OF 0.01 TO 50% BY WEIGHT WITH REFERENCE TO THE TOTAL WEIGHT OF (1) AND (2), COMPONENT (B) BEING PRESENT IN AN AMOUNT OF ABOUT 0.6 TO 30% BY WEIGHT, WITH REFERENCE TO THE TOTAL WEIGHT OF (A) AND (B); AND (C) A FREE RADICAL FORMING CATALYST IN AN AMOUNT OF ABOUT 0.05 TO 10% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B).

Claim 4

A PROCESS FOR THE PRODUCTION OF A MODIFIED POLYOLEFINES COMPRISING INTENSELY KNEADING AT A TEMPERATURE FROM 60 TO 350*C. UNDER A SHEAR STRESS OF THE ORDER OF MAGNITUDE OF 1500 KG./CM.2 A MIXTURE CONSISTING ESSENTIALLY OF: (A) A HIGH MOLECULAR WEIGHT POLYOLEFIN OF A 2 TO 4 CARBON ATOM MONOLEFINE, SAID POLYOLEFINE HAVING A MELT INDEX OF ABOUT 0.1 TO 30; (B) THE COMBINATION OF (1) AN ETHYLENICALLY UNSATURATED POLYESTER PREPARED FORM POLYOLS WITH A,B-UNSATURATED POLYBASIC CARBOXYLIC ACIDS AND HAVING A MOLECULAR WEIGHT FROM 500 TO 6000, AND (2) AN ETHYLENICALLY UNSATURATED MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYLAROMATIC MONOMERS CONTAINING ONE BENZEN NUCLEUS IN THE MOLECULE, METHYL ACRYLATE, ETHYL ACRYLATE, METHYL METHACRYLATE AND ETHYL METHACRYLATE IN AN AMOUNT OF 0.01 TO 50% BY WEIGHT WITH REFERENCE TO THE TOTAL WEIGHT OF (1) AND (2), COMPONENT (B) BEING PRESENT IN AN AMOUNT OF ABOUT 0.6 TO 30% BY WEIGHT, WITH REFERENCE TO THE TOTAL WEIGHT OF (A) AND (B); AND (C) A FREE RADICAL FORMING CATALYST IN AN AMOUNT OF ABOUT 0.05 TO 10% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B).