FR2375978A1 - Procede de fabrication de micro-capsules polymeriques - Google Patents

Procede de fabrication de micro-capsules polymeriques

Info

Publication number
FR2375978A1
FR2375978A1 FR7739745A FR7739745A FR2375978A1 FR 2375978 A1 FR2375978 A1 FR 2375978A1 FR 7739745 A FR7739745 A FR 7739745A FR 7739745 A FR7739745 A FR 7739745A FR 2375978 A1 FR2375978 A1 FR 2375978A1
Authority
FR
France
Prior art keywords
molecular weight
polymerization reaction
negatively charged
urea
capsules
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7739745A
Other languages
English (en)
French (fr)
Other versions
FR2375978B1 (nl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NCR Voyix Corp
Original Assignee
NCR Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US05/755,832 external-priority patent/US4087376A/en
Application filed by NCR Corp filed Critical NCR Corp
Publication of FR2375978A1 publication Critical patent/FR2375978A1/fr
Application granted granted Critical
Publication of FR2375978B1 publication Critical patent/FR2375978B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
    • C08G12/12—Ureas; Thioureas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • B01J13/18—In situ polymerisation with all reactants being present in the same phase

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
FR7739745A 1976-12-30 1977-12-30 Procede de fabrication de micro-capsules polymeriques Granted FR2375978A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/755,832 US4087376A (en) 1974-07-10 1976-12-30 Capsule manufacture
US05/755,831 US4089802A (en) 1974-07-10 1976-12-30 Capsule manufacture

Publications (2)

Publication Number Publication Date
FR2375978A1 true FR2375978A1 (fr) 1978-07-28
FR2375978B1 FR2375978B1 (nl) 1981-02-27

Family

ID=27116136

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7739745A Granted FR2375978A1 (fr) 1976-12-30 1977-12-30 Procede de fabrication de micro-capsules polymeriques

Country Status (12)

Country Link
AR (1) AR222631A1 (nl)
BR (1) BR7708692A (nl)
CH (1) CH641687A5 (nl)
DE (1) DE2757634C2 (nl)
DK (1) DK584277A (nl)
ES (1) ES465483A2 (nl)
FR (1) FR2375978A1 (nl)
GB (1) GB1540986A (nl)
IT (1) IT1202387B (nl)
NL (1) NL178846C (nl)
NO (1) NO146485C (nl)
SE (1) SE7714555L (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416727A1 (fr) * 1978-02-14 1979-09-07 Fuji Photo Film Co Ltd Procede de preparation de microcapsules, notamment pour papiers copiants sensibles a la pression

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023859B2 (ja) * 1978-11-14 1985-06-10 神崎製紙株式会社 マイクロカプセルの製造方法
DE2940786A1 (de) * 1979-10-08 1981-04-16 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von mikrokapseln

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL275857A (nl) * 1961-03-13 1900-01-01
US4001140A (en) * 1974-07-10 1977-01-04 Ncr Corporation Capsule manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416727A1 (fr) * 1978-02-14 1979-09-07 Fuji Photo Film Co Ltd Procede de preparation de microcapsules, notamment pour papiers copiants sensibles a la pression

Also Published As

Publication number Publication date
DK584277A (da) 1978-07-01
DE2757634C2 (de) 1986-05-28
NL178846B (nl) 1986-01-02
NO146485B (no) 1982-07-05
NL7714611A (nl) 1978-07-04
GB1540986A (en) 1979-02-21
ES465483A2 (es) 1978-12-01
NO774458L (no) 1978-07-03
FR2375978B1 (nl) 1981-02-27
SE7714555L (sv) 1978-07-01
CH641687A5 (en) 1984-03-15
NO146485C (no) 1982-10-13
DE2757634A1 (de) 1978-07-13
IT1202387B (it) 1989-02-09
BR7708692A (pt) 1978-08-15
AR222631A1 (es) 1981-06-15
NL178846C (nl) 1986-06-02

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Legal Events

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TP Transmission of property
TP Transmission of property