公开(公告)号：US3635933A

公开(公告)日：1972-01-18

申请号：US3635933D

申请日：1969-06-12

Applicant: ALLIED CHEM

Inventor： SCHAFFHAUSER ROBERT J ,  MASON CHARLES D

IPC: C08K5/14 ,  C08D5/02 ,  C08D11/04 ,  C08D13/28

CPC classification number: C08K5/14 ,  C08L9/00

Abstract: 1,2-BUTADIENE POLYMER HAVING AT LEAST 80% OF THE BUTADIENE CONTENT COMBINED THEREIN IN THE 1,2 FORM IS USED TOGETHER WITH A PEROXY CURING AGENT TO PRODUCED A MOLDING COMPOSITION. THE POLYBUTDIENE CAN BE IN A NORMALLY GRANULAR, CRYSTALLINE FORM OR IN NON-CRYSTALLINE FORM. THE COMPOSITION CURES AT GOOD RATE EVEN WHEN ANTIOXIDANT TO INHIBIT PREMATURE CURING IS INCLUDED IN THE COMPOSITION. A HEAT DISTORTION TEMPERATURE OF AT LEAST 250*C. CAN BE OBTAINED. CONVENTIONAL INGREDIENTS OF MOLDING COMPOUNDS SUCH AS FILLERS AND MOLD LUBRICANTS CAN BE INCORPORATED WITH THE COMPOSITION. THE COMPOSITION CAN BE WORKED WITHOUT CURING UP TO A TEMPERATURE OF ABOUT 150* C. AND CURED AT HIGHER TEMPERATURES.

公开(公告)号：US3635934A

公开(公告)日：1972-01-18

申请号：US3635934D

申请日：1969-06-12

Applicant: ALLIED CHEM

Inventor： SCHAFFHAUSER ROBERT J ,  MASON CHARLES D

IPC: C08K5/14 ,  C08D5/02 ,  C08D11/04 ,  C08D13/28

CPC classification number: C08K5/14 ,  C08L9/00

Abstract: CRYSTALLINE 1,2 BUTADIENE POLYMER IS USED TOGETHER WITH A FREE-RADICAL CURING AGENT TO PRODUCED A MOLDING COMPOSITION. THE POLYBUTADIENE IS IN THE NORMALLY GRANULAR, CRYSTALLINE. LARGELY SYNDIOTACTIC FORM. WHEN MOLDING COMPOSITIONS OF THIS POLYBUTADIENE ARE FORMULATED ON A ROLL MILL, THE COMPOSITIONS ARE GRANULATED. THOSE FORMULATED WITH PEROXY CURING AGENT WILL READILY CURE TO A HEAT DISTORTION TEMPERATURE OF AT LEAST 250*C. EVEN WHEN CONTAINING AN ANTIOXIDANT SERVING TO INHIBIT PREMATURE CURING. CONVENTIONAL INGREDIENTS OF MOLDING COMPOUNDS SUCH AS FILLERS AND MOLD LUBRICANTS CAN BE INCORPORATED WITH THE COMPOSITIONS. THE COMPOSITIONS INCLUDING A PEROXY CURING AGENT AND AN ANTIOXIDANT CAN BE WORKED WITHOUT CURING AT TEMPERATURES ABOVE THE FUSION TEMPERATURE, AND CURED AT HIGHER TEMPERATURES.

公开(公告)号：US3651011A

公开(公告)日：1972-03-21

申请号：US3651011D

申请日：1969-06-11

Applicant: ALLIED CHEM

Inventor： SCHAFFHAUSER ROBERT J ,  PARRIS CHESTER L

IPC: C08F8/00 ,  C08C19/10 ,  C08F8/48 ,  C08F27/00

CPC classification number: C08C19/10

Abstract: 1,2/POLYBUTADIENE IS CYCLIZED WITHIN 10 HOURS TO THE POINT OF COMPLETE ELIMATION OF VINYL UNSATURATION, AT CONCENTRATION IN LOWER ALKYL BENZENE IN THE RANGE 3%10% BY WEIGHT, USING A CATIONIC AGENT, ESPECIALLY BORON TRIFLUORIDE, TO PROMOTE THE CYCLIZATION. THE TEMPERATURE EMPLOYED IS AT MOST 105*C. AN ANTIOXIDANT SUCH AS A HINDERED POLYPHENOL IS INCLUDED IN THE CYCLIZATION REACTION MIXTURE.

公开(公告)号：US3532366A

公开(公告)日：1970-10-06

申请号：US3532366D

申请日：1965-11-19

Applicant: ALLIED CHEM

Inventor： RAKUS JULIUS P ,  SCHAFFHAUSER ROBERT J ,  MASON CHARLES D

IPC: B29C61/00 ,  F16L47/22 ,  F16L13/00 ,  F16L47/00

CPC classification number: B29C61/003 ,  B29K2009/00 ,  F16L47/22 ,  Y10S285/901