公开(公告)号：US3751522A

公开(公告)日：1973-08-07

申请号：US3751522D

申请日：1971-05-28

Applicant: TEXACO INC

Inventor： LACHOWICZ D ,  HOLDER C

IPC: C08F8/30 ,  C08F255/02 ,  C08F279/02 ,  C08F15/00

CPC classification number: C08F255/023 ,  C08F8/30 ,  C08F279/02 ,  Y10S525/904 ,  Y10S525/914 ,  C08F210/18 ,  C08F220/12

Abstract: GRAFT COPOLYMERS ARE PREPARED IN A TWO-STAGE PROCESS BY FIRST REACTING, FOR EXAMPLE, 1,2-POLYBUTADIENE OR AN ETHYLENE/PROPYLENE/ALKYLIDENE NORBORNENE TERPOLYMER, WITH A MIXTURE OF DINITROGEN TETROXIDE AND OXYGEN TO FORM A NITROOXIDIZED BACKBONE POLYMER HAVING INCORPORATED THEREIN NITRO AND PEROXY NITRATE FUNCTIONS WHICH SERVE, IN THE SECOND STAGE OF THE PROCESS, AS SITES FOR THE SUBSEQUENT GRAFT POLYMERIZATION OF AN ACRYLATE MONOMER.

公开(公告)号：US3759881A

公开(公告)日：1973-09-18

申请号：US3759881D

申请日：1970-12-14

Applicant: TEXACO INC

Inventor： HOLDER C

IPC: C08F20/12 ,  C08F3/64 ,  C08F3/66 ,  C08F15/16

CPC classification number: C08F20/12 ,  Y10S260/43

Abstract: POLYACRYLATE CASTINGS ARE PREPARED BY FIRST FORMING A VISCOUS PREPOLYMER BY INTIAMATELY ADMIXING AN ACRYLIC ACID ESTER WITH AN AMINE INITIATOR, SUCH AS MORPHOLINE, AND THEN, IN A SECOND STEP, COMPLETING THE POLYMERIZATION IN A MOLD THUS FORMING A CLEAR POLYACRYLATE CASTING.

公开(公告)号：US3751523A

公开(公告)日：1973-08-07

申请号：US3751523D

申请日：1971-05-28

Applicant: TEXACO INC

Inventor： LACHOWICZ D ,  HOLDER C

IPC: C08C19/22 ,  C08F8/30 ,  C08F255/02 ,  C08F279/02 ,  C08F15/00

CPC classification number: C08F255/023 ,  C08C19/22 ,  C08F8/30 ,  C08F279/02 ,  Y10S525/904 ,  Y10S525/914 ,  C08F210/18 ,  C08F220/12

Abstract: GRAFT COPOLYMERS ARE PREPARED IN A TWO-STAGE PROCESS BY FIRST REACTING, FOR EXAMPLE, 1,2-POLYBUTADIENE OR AN ETHYLENE/PROPYLENE/ALKYLIDENE NORBORNENE TERPOLYMER WITH DINITROGEN TETROXIDE TO FORM A NITRATED BACKBONE POLYMER HAVING INCORPORATED THEREIN NITRO AND NITRITE FUNCTIONS WHICH SERVE, IN THE SECOND STAGE OF THE PROCESS, AS SITES FOR THE SUBSEQUENT GRAFT COPOLYMERIZATION OF AN ACRYLATE MONOMER.

公开(公告)号：US3742088A

公开(公告)日：1973-06-26

申请号：US3742088D

申请日：1971-01-07

Applicant: TEXACO INC

Inventor： CUSANO C ,  HOLDER C ,  RUBIN I

IPC: C08L69/00 ,  C08G39/10

CPC classification number: C08L69/00 ,  C08L33/00 ,  C08L2666/04

Abstract: The properties, in particular the impact strength, of polycarbonate resins having an average molecular weight of at least 8000 are improved by blending such resins with from about 3 percent to about 35 percent by weight of at least one elastomer characterized by an average molecular weight ranging from about 100,000 to about 2,000,000 and a second order transition (Tg) below 0*C.

Abstract translation: 通过将这种树脂与约3重量％至约35重量％的至少一种弹性体共混来改善平均分子量为至少8000的聚碳酸酯树脂的性能，特别是冲击强度，其特征在于平均分子量范围 约100,000至约2,000,000和二级转变（Tg）低于0℃。