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US3846265A Expired / Lapsed US ⏱️ 0.0 years remaining

Production of shaped structures

Assignee: Mitsubishi Chemical Corp
•
Filing: 1970-12-14
•
Granted: 1974-11-05
•
Expires: 1990-12-14
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Abstract

Abstract 1. A PROCESS FOR PRODUCING SHAPED, STRUCTURES WHICH COMPRISES IMPGRENATING A LOOSE PARTICULATE, CELLULOSE HIGHPOLYMER SUBSTANCE OF A SIZE LARGER THAN 10 MESH TYLER STANDARD SIEVE, WITH 2 TO 70% BY WEIGHT BASED ON SAID CELLULOSIC HIGH-POLYMER SUBSTANCE OF AT LEAST ONE VINYL MONOMER, SUBJECTING THE RESULTING LOOSE PARTICULAR MASS CONSISTING ESSENTIALLY OF SAID PARTICULATE CELLULOSIC HIGHPOLYMER SUBSTANCE IMPREGNATED WITH SAID VINYL MONOMER TO RADIATION INDUCED GRAFT POLYMERIZATION THEREBY TO CAUSE SAID VINYL MONOMER TO GRAFT-POLYMERIZATION THEREBY TO CAUSE TICULATE, CELLULOSIC HIGH-POLYMER SUBSTANCE, AND THEN SUBJECTING THE RESULTING REACTION PRODUCT WHICH IS STILL SUBSTANTIALLY LOOSE AND PARTICULATE TO COMPRESSION MOLDING UNDER HEAT AND PRESSURE SUFFICIENT TO FUSE THE PARTICULATE REACTION PRODUCT INTO A COHERENT MASS WHEREBY THE REACTION PRODUCT IS FORMED INTO A SHAPED STRUCTURE.

Inventors

  • 👤 Y Yamaguchi
  • 👤 Y Nakayama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 14:47
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/02; B; B27; B27N; B27N3/00; B27N3/002

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 124 words
A PROCESS FOR PRODUCING SHAPED, STRUCTURES WHICH COMPRISES IMPGRENATING A LOOSE PARTICULATE, CELLULOSE HIGHPOLYMER SUBSTANCE OF A SIZE LARGER THAN 10 MESH TYLER STANDARD SIEVE, WITH 2 TO 70% BY WEIGHT BASED ON SAID CELLULOSIC HIGH-POLYMER SUBSTANCE OF AT LEAST ONE VINYL MONOMER, SUBJECTING THE RESULTING LOOSE PARTICULAR MASS CONSISTING ESSENTIALLY OF SAID PARTICULATE CELLULOSIC HIGHPOLYMER SUBSTANCE IMPREGNATED WITH SAID VINYL MONOMER TO RADIATION INDUCED GRAFT POLYMERIZATION THEREBY TO CAUSE SAID VINYL MONOMER TO GRAFT-POLYMERIZATION THEREBY TO CAUSE TICULATE, CELLULOSIC HIGH-POLYMER SUBSTANCE, AND THEN SUBJECTING THE RESULTING REACTION PRODUCT WHICH IS STILL SUBSTANTIALLY LOOSE AND PARTICULATE TO COMPRESSION MOLDING UNDER HEAT AND PRESSURE SUFFICIENT TO FUSE THE PARTICULATE REACTION PRODUCT INTO A COHERENT MASS WHEREBY THE REACTION PRODUCT IS FORMED INTO A SHAPED STRUCTURE.
Claim 2
Dependent Claim 124 words
A PROCESS FOR PRODUCING SHAPED, STRUCTURES WHICH COMPRISES IMPGRENATING A LOOSE PARTICULATE, CELLULOSE HIGHPOLYMER SUBSTANCE OF A SIZE LARGER THAN 10 MESH TYLER STANDARD SIEVE, WITH 2 TO 70% BY WEIGHT BASED ON SAID CELLULOSIC HIGH-POLYMER SUBSTANCE OF AT LEAST ONE VINYL MONOMER, SUBJECTING THE RESULTING LOOSE PARTICULAR MASS CONSISTING ESSENTIALLY OF SAID PARTICULATE CELLULOSIC HIGHPOLYMER SUBSTANCE IMPREGNATED WITH SAID VINYL MONOMER TO RADIATION INDUCED GRAFT POLYMERIZATION THEREBY TO CAUSE SAID VINYL MONOMER TO GRAFT-POLYMERIZATION THEREBY TO CAUSE TICULATE, CELLULOSIC HIGH-POLYMER SUBSTANCE, AND THEN SUBJECTING THE RESULTING REACTION PRODUCT WHICH IS STILL SUBSTANTIALLY LOOSE AND PARTICULATE TO COMPRESSION MOLDING UNDER HEAT AND PRESSURE SUFFICIENT TO FUSE THE PARTICULATE REACTION PRODUCT INTO A COHERENT MASS WHEREBY THE REACTION PRODUCT IS FORMED INTO A SHAPED STRUCTURE.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-04 1978-05-06 1978-11-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-04 1982-05-06 1982-11-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-04 1986-05-06 1986-11-05 $7700.00 Window Closed / Lapsed

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