公开(公告)号：US3694253A

公开(公告)日：1972-09-26

申请号：US3694253D

申请日：1971-05-19

Applicant: POLAROID CORP

Inventor： GERBER ARTHUR M ,  WALWORTH VIVIAN K

IPC: C08F2/44 ,  C08F2/46 ,  G03C1/00 ,  G03C1/005 ,  G03F7/00 ,  B44D1/50

CPC classification number: G03F7/002 ,  C08F2/44 ,  C08F2/46 ,  G03C1/002 ,  G03C1/005

Abstract: THIS APPLICATION IS DIRECTED TO A METHOD FOR PREPARING MICROCAPSULES COMPRISING A NUCLEUS OF SILVER HALIDE SURROUNDED BY A CONTINUOUS WALL OF A SYNTHETIC POLYMER, WHICH METHOD COMPRISES FORMING A RELATIVELY THIN LAYER OF REACTANTS INCLUDING MONOMER AND SILVER HALIDE GRAINS AND EXPOSING SAID THIN LAYER TO POLYMEIZING RADIATION WHEREBY THE MONOMERS PREFERENTIALLY POLYMERIZE AROUND THE SILVER HALIDE.

公开(公告)号：US3889125A

公开(公告)日：1975-06-10

申请号：US33421773

申请日：1973-02-21

Applicant: POLAROID CORP

Inventor： GERBER ARTHUR M

IPC: G01N23/223 ,  G21F3/00 ,  G21F1/00

CPC classification number: G01N23/223 ,  G01N2223/076 ,  G21F3/00

Abstract: A novel radiation shield for a nuclear source in an X-ray fluorescence analytical device.

Abstract translation: 一种用于X射线荧光分析装置中核源的新型辐射屏蔽。

公开(公告)号：US3694252A

公开(公告)日：1972-09-26

申请号：US3694252D

申请日：1971-05-19

Applicant: POLAROID CORP

Inventor： GERBER ARTHUR M ,  STORY SYBIL N ,  WALWORTH VIVIAN K

IPC: B01J13/18 ,  C08F2/44 ,  G03C1/00 ,  B44D1/20

CPC classification number: G03C1/002 ,  B01J13/185 ,  C08F2/44

Abstract: THIS APPLICATION IS DIRECTED TO A METHOD FOR PREPARING MICROCAPSULES COMPRISING A NUCLEUS OF SILVER HALIDE SURROUNDED BY A CONTINUOUS WALL OF A SYNTHETIC POLYMER, WHICH METHOD COMPRISES SUBJECTING THE REACTANTS INCLUDING MONOMER AND SILVER HALIDE GRAINS IN AN ELECTROLYTE TO AN ELECTRIC FIELD BETWEEN A PAIR OF ELECTRODES, WHEREBY, THE MONOMERS PREFERRENTIALLY POLYMERIZE AROUND THE SILVER HALIDE.