VN498A1 - - Google Patents

Info

Publication number
VN498A1
VN498A1 VN127195A VN127195A VN498A1 VN 498 A1 VN498 A1 VN 498A1 VN 127195 A VN127195 A VN 127195A VN 127195 A VN127195 A VN 127195A VN 498 A1 VN498 A1 VN 498A1
Authority
VN
Vietnam
Prior art keywords
solution
zones
heated
formaldehyde solution
pouring
Prior art date
Application number
VN127195A
Other languages
English (en)
Vietnamese (vi)
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
Application filed filed Critical
Publication of VN498A1 publication Critical patent/VN498A1/vi

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
    • C07C47/04—Formaldehyde
    • 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
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/08—Polymerisation of formaldehyde

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Cosmetics (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
VN127195A 1994-12-09 1995-07-08 VN498A1 (et)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES09402512A ES2087041B1 (es) 1994-12-09 1994-12-09 Procedimiento para la preparacion de paraformaldehido.

Publications (1)

Publication Number Publication Date
VN498A1 true VN498A1 (et) 1998-05-25

Family

ID=8288212

Family Applications (1)

Application Number Title Priority Date Filing Date
VN127195A VN498A1 (et) 1994-12-09 1995-07-08

Country Status (29)

Country Link
US (1) US5686554A (et)
EP (1) EP0716104B1 (et)
JP (1) JP2796669B2 (et)
KR (1) KR100249275B1 (et)
CN (1) CN1061641C (et)
AT (1) ATE193308T1 (et)
AU (1) AU695649B2 (et)
CA (1) CA2153452C (et)
CZ (1) CZ288105B6 (et)
DE (1) DE69517138T2 (et)
EE (1) EE03254B1 (et)
ES (1) ES2087041B1 (et)
FI (1) FI113780B (et)
GR (1) GR3034085T3 (et)
HR (1) HRP950396B1 (et)
HU (1) HU214094B (et)
MX (1) MX192468A (et)
NO (1) NO307383B1 (et)
NZ (1) NZ272534A (et)
PL (1) PL179331B1 (et)
PT (1) PT716104E (et)
RU (1) RU2148592C1 (et)
SA (1) SA95160120B1 (et)
SG (1) SG33401A1 (et)
TH (1) TH12621A (et)
TW (1) TW285666B (et)
UA (1) UA44697C2 (et)
VN (1) VN498A1 (et)
YU (1) YU48905B (et)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69703832T2 (de) * 1996-03-20 2001-04-26 Celanese Int Corp Verwendiung eines amins zur verbesserung von paraformaldehyd

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001235A (en) * 1958-07-26 1961-09-26 Sumitomo Chemical Co Method for the manufacture of a formaldehyde polymer in a crape-chip form
US2992277A (en) 1959-04-28 1961-07-11 Du Pont Paraformaldehyde manufacture
ES341724A1 (es) * 1967-06-13 1968-10-01 Ordieres Perfeccionamientos introducidos en los procedimientos de polimerizacion de soluciones de formaldehido.
FR1547172A (fr) * 1967-07-17 1968-11-22 Sir Soc Italiana Resine Spa Procédé de production du paraformaldéhyde
FR2067169A1 (en) * 1969-11-19 1971-08-20 Charbonnages Ste Chimique Paraformaldehyde from aq formaldehyde
US4550213A (en) 1984-06-29 1985-10-29 Celanese Corporation Method of manufacture for paraformaldehyde prills
DE3925966A1 (de) 1989-08-05 1991-02-07 Leuna Werke Veb Lp 86 148 - verfahren zur herstellung von koernigem paraformaldehyd
CN1029351C (zh) 1989-09-16 1995-07-19 陈方 高甲醛含量的多聚甲醛的制造方法
US5302277A (en) * 1990-11-28 1994-04-12 Mitsui Toatsu Chemicals, Incorporated Process for producing paraformaldehyde of high formaldehyde content

Also Published As

Publication number Publication date
ES2087041A1 (es) 1996-07-01
JP2796669B2 (ja) 1998-09-10
KR100249275B1 (ko) 2000-03-15
CN1124242A (zh) 1996-06-12
YU48905B (sh) 2002-10-18
PT716104E (pt) 2000-11-30
CZ243995A3 (en) 1996-06-12
EP0716104A1 (en) 1996-06-12
US5686554A (en) 1997-11-11
CZ288105B6 (cs) 2001-04-11
NO307383B1 (no) 2000-03-27
HRP950396A2 (en) 1997-10-31
FI113780B (fi) 2004-06-15
PL310573A1 (en) 1996-06-10
JPH08165262A (ja) 1996-06-25
TW285666B (et) 1996-09-11
PL179331B1 (pl) 2000-08-31
HUT75584A (en) 1997-05-28
MX192468A (es) 1999-06-24
MX192468B (et) 2016-01-29
FI953683A0 (fi) 1995-08-02
GR3034085T3 (en) 2000-11-30
DE69517138D1 (de) 2000-06-29
ES2087041B1 (es) 1997-03-16
SG33401A1 (en) 1996-10-18
CA2153452C (en) 2006-08-29
NZ272534A (en) 1996-03-26
SA95160120B1 (ar) 2005-05-16
TH12621A (th) 1996-09-10
CN1061641C (zh) 2001-02-07
HU214094B (en) 1997-12-29
KR960022425A (ko) 1996-07-18
NO952691D0 (no) 1995-07-06
CA2153452A1 (en) 1996-06-10
ATE193308T1 (de) 2000-06-15
YU54395A (sh) 1997-12-05
HU9502048D0 (en) 1995-09-28
DE69517138T2 (de) 2001-02-01
HRP950396B1 (en) 2001-02-28
EP0716104B1 (en) 2000-05-24
AU695649B2 (en) 1998-08-20
AU2496095A (en) 1996-06-20
NO952691L (no) 1996-06-10
FI953683A (fi) 1996-06-10
UA44697C2 (uk) 2002-03-15
RU2148592C1 (ru) 2000-05-10
EE03254B1 (et) 2000-02-15

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